- Must visit
National Air and Space Museum
This world-class museum presents aviation and space history through iconic aircraft, spacecraft, and hands-on science exhibits.
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Journey information
Overview: St. Louis, MO to Washington, DC flight
USAUSA
Flights from St. Louis, MO to Washington, DC depart on average 49 times per day, taking around 2h 19m. Cheap flight tickets for this journey start at $141 but you can travel from only $88 by bus.
There are 4 flights per day. The earliest flight runs at 05:00, the last at 22:45. The fastest flight covers the 708 miles (1141 km) distance in 2h 9m. April is the cheapest month to fly.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from $88
Distance 708 miles (1141 km) |
Average flight duration 2h 19m |
Cheapest ticket price $141 |
Flights per day 49 |
Direct flights 4 |
Fastest flight 2h 9m |
First flight 5:00 AM |
Last flight 10:45 PM |
Cheapest Month Apr |
Cheapest Day Thu |
High Season Jul - Sep |
Low Season Jan - Mar |
Best time to book 5 days |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from $88
The cheapest and fastest flights from St. Louis, MO to Washington, DC
Showing times and prices for Aug 25
Cheapest price
$248
Average price
$408
Fastest journey
2 h 6 m
Average duration
2 h 17 m
Flights per day
54
Distance
1141 km
Cheap tickets
The best way to find a cheap flight ticket from St. Louis, MO to Washington, DC is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from St. Louis, MO to Washington, DC will cost around $408 if you buy it on the day, but the cheapest tickets can be found for only $248.
Fast flights
Of the 54 flights that leave St. Louis, MO for Washington, DC onTue, Aug 25, 5 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Tue, Aug 25 the direct flights cover the 1141 km distance in an average of 2 h 17 m but if you time it right, some flights will get you there in just 2 h 6 m .
On Tue, Aug 25 the longest flights will take 2 h 33 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
AA477610:44 AM2h33St. Louis Lambert International Airport2:17 PMRonald Reagan National Airport$2481One-way0 transfers
AA56295:57 PM2h17St. Louis Lambert International Airport9:14 PMRonald Reagan National Airport$2481One-way0 transfers- AA50156:00 AM2h14St. Louis Lambert International Airport9:14 AMRonald Reagan National Airport$2481One-way0 transfers
AA2497 · AA28398:34 AM6h24St. Louis Lambert International Airport3:58 PMRonald Reagan National Airport$2581One-way1 transfer- AA831 · AA28003:25 PM6h30St. Louis Lambert International Airport10:55 PMDulles International Airport$2581One-way1 transfer
UA44541:00 PM2h06St. Louis Lambert International Airport4:06 PMDulles International Airport$2911One-way0 transfers- UA45068:40 AM2h14St. Louis Lambert International Airport11:54 AMDulles International Airport$2911One-way0 transfers
- AA50156:00 AM2h14St. Louis Lambert International Airport9:14 AMRonald Reagan National Airport$2481One-way0 transfers
- AA56295:57 PM2h17St. Louis Lambert International Airport9:14 PMRonald Reagan National Airport$2481One-way0 transfers
- AA477610:44 AM2h33St. Louis Lambert International Airport2:17 PMRonald Reagan National Airport$2481One-way0 transfers
Travel Information
Compare train, bus, and flight for St. Louis, MO to Washington, DC
Omio recommends booking the flight as it is the most popular option from St. Louis, MO to Washington, DC among Omio's users. If you are prioritising price take the bus with prices starting from $88. For those with little time consider booking a flight which can get you there in 2h 19m. The ticket price range depends on the travel mode: a bus costs an average of $88, and a train costs an average of $127.
Distance: 708 miles (1141 km)
Compare flight with
Most popular Flight | Bus | Train | Driving |
|---|---|---|---|
$281 Average price | $125 Average price Cheapest | $393 Average price | $180 Average price (fuel + tolls) |
5h 19m Average total duration Fastest 2h 19m Onboard + 3h 0m Additional time* | 21h 25m Average total duration 20h 55m Onboard + 30m Additional time* | 29h 45m Average total duration 29h 15m Onboard + 30m Additional time* | 12h 38m Average total duration (door-to-door) |
Direct Options | Direct Options | Direct Options | Direct Options |
The cheapest way to travel from St. Louis, MO to Washington, DC is a bus with an average price of $125.
This is compared to other travel options from St. Louis, MO to Washington, DC:
A bus is $157 less than a flight for this route with tickets for a flight from St. Louis, MO to Washington, DC costing on average $281.
A bus is $268 less than a train for this route with tickets for a train from St. Louis, MO to Washington, DC costing on average $393.
The fastest way to travel from St. Louis, MO to Washington, DC is by flight with an average journey time of 2h 19m.
Other travel options to Washington, DC take longer:
Bus takes on average 20h 55m.
Train takes on average 29h 15m.
It's helpful to compare your options as there are 3 ways to travel between St. Louis, MO and Washington, DC including taking a train, bus, and flight.
We recommend using the flight as it is the most popular way to get from St. Louis, MO to Washington, DC among Omio's users.
Live departures
St. Louis, MO to Washington, DC flight times
The table below shows live departures for St. Louis, MO to Washington, DC flights for today, Monday, August 24. You can also manually refresh the results below to see updated flight journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| 11:28 AM St. Louis, MO | 2h01 | 1:29 PM Washington, DC | 0 transfersDirect | |
| 12:04 PM St. Louis, MO | 2h16 | 2:20 PM Washington, DC | 0 transfersDirect | |
| 1:21 PM St. Louis, MO | 4h52 | 6:13 PM Washington, DC | 0 transfersDirect | |
| 8:33 PM St. Louis, MO | 4h53 | 1:26 AM Washington, DC | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets St. Louis, MO to Washington, DC by train, bus, or flight
Compare train, bus, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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Why should you book St. Louis, MO to Washington, DC flights with Omio?
American Airlines operates all flights services from St. Louis, MO to Washington, DC.
Omio is an official ticket reseller for all your travel options from St. Louis, MO to Washington, DC.
Why book with Omio vs American Airlines?
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare American Airlines with all available travel options, which are train, bus and flight to ensure you get the best deal for traveling from St. Louis, MO to Washington, DC.
Why book with Omio over Trip, Edreams or Skyscanner?
- Multiple modes of transport: Omio allows you to compare travel options including train, bus and flight to find the ideal travel option from St. Louis, MO to Washington, DC.
Airlines: American Airlines from St. Louis, MO to Washington, DCFind the best flights between St. Louis, MO to Washington, DC with Omio's travel partners American Airlines from $88. We can find you the best deals, schedules and tickets when comparing and booking the best trip.
American Airlines
About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average Duration
2h 9m
Cheapest Price
$141
American Airlines frequency
15 a day
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
Entertaiment on board
Complete guide to Washington, DC
Things to do in Washington, DC
Discover the best of Washington, DC — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Washington, DC trip today.
- Must visit
Smithsonian National Museum of Natural History
Housed in a Beaux-Arts building, this museum explores natural wonders with dinosaurs, gems, fossils, and global biodiversity.
- Must visit
National Museum of African American History and Culture
A landmark museum documenting African American history and culture through powerful exhibitions, artifacts, and storytelling.
- Must visit
National Mall
The National Mall is Washington's grand civic promenade, lined with museums, memorials, and classic views ideal for first-time visitors.
- Must visit
Georgetown
Georgetown charms with historic streets, rowhouses, waterfront paths, and independent shops that make it one of the city's best walking areas.
- Must visit
Tidal Basin
The Tidal Basin loop offers famous cherry blossoms, water views, and easy access to several of Washington's most iconic memorials.
Half-Smoke
Half-smoke sausage, usually smoked pork and beef, served on a bun with chili, mustard, and onions. It is DC's signature street food, strongly tied to Ben's Chili Bowl.
- Vegetarian
Jumbo Slice Pizza
Jumbo slice is an oversized late-night pizza slice popular in Adams Morgan. It is a recognizable DC nightlife food known for its huge foldable portions.
Mumbo Sauce With Fried Chicken
Mumbo sauce is a sweet tangy red sauce commonly served with fried chicken and wings at DC carryouts. It is a beloved local condiment with roots in Black DC food culture.
Rose's Luxury
Acclaimed fine-dining restaurant focused on Mid-Atlantic ingredients and refined tasting menus in an elegant, contemporary dining room.
The Salt Line
Polished seafood institution at the municipal fish market, best known for regional oysters, crab cakes, and classic Chesapeake flavors.
Ben's Chili Bowl
Historic casual landmark famous for half-smokes, chili, and a classic diner feel. A must for trying DC's best-known street food tradition.
US dollar ($)
DC is pricier than many US cities. Hotels and dining run high in central areas, but Metro and many free museums help balance daily travel costs.
Average meal costs
- Budget
- $10-18 for fast food or casual takeout.
- Mid-range
- $25-45 per person for a meal.
- Fine dining
- $80+ per person for upscale restaurants.
- Coffee
- $4-6 for a cappuccino.
Tipping culture
Tip 18-20% at restaurants, more for great service. Taxis usually 10-15%. Cafes: round up or add $1-2.
FAQs: St. Louis, MO to Washington, DC Flight
Find answers to the most common questions about traveling from St. Louis, MO to Washington, DC by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Washington, DC, this guide helps you travel smarter and with confidence.
Cheap plane tickets from St. Louis, MO to Washington, DC can start from as little as $141 when you book in advance. The average flight ticket price for St. Louis, MO to Washington, DC is $281 ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from St. Louis, MO to Washington, DC is 2h 9m to travel the 708 miles (1141 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from St. Louis, MO to Washington, DC leaves at 5:00 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from St. Louis, MO to Washington, DC leaves at 10:45 PM.
Yes, there are 4 direct flights a day from St. Louis, MO to Washington, DC with . Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from St. Louis, MO to Washington, DC, you can count on American Airlines for the best way to get you to Washington, DC. You can also check all possible airlines who offer a service between St. Louis, MO and Washington, DC and compare the amenities they offer before buying a plane ticket.
Flights from St. Louis, MO to Washington, DC generally leave from St. Louis Lambert International Airport and arrive in Ronald Reagan National Airport.St. Louis Lambert International Airport is 1 miles (2 km) away from St. Louis, MO city centre and Ronald Reagan National Airport is 2 miles (4 km) from Washington, DC city centre.
The cheapest month for a flight from St. Louis, MO to Washington, DC is April.
It's helpful to compare your options as there are 3 ways to travel between St. Louis, MO and Washington, DC including taking a train, bus, and flight.
Since neither St. Louis, MO nor Washington, DC are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 1 h between St. Louis, MO and Washington, DC all year round.
The best events to attend in Washington, DC include:
- National Cherry Blossom Festival, a celebration of the blooming cherry blossom trees with parades and cultural events
- Independence Day Celebration, fireworks and festivities at the National Mall to commemorate the nation's independence
- Smithsonian Folklife Festival, a showcase of cultural traditions from around the world held on the National Mall
- DC Jazz Festival, an annual event featuring performances by renowned jazz musicians at various venues across the city.
Some of the most interesting sights to explore in Washington, DC are:
- The National Mall, a historic and iconic open-area national park featuring monuments and museums
- The White House, the official residence and workplace of the President of the United States
- The United States Capitol, the home of the United States Congress and a symbol of the American people and government
- The Smithsonian Institution, a group of museums and research institutions offering diverse exhibits and educational programs
- The Lincoln Memorial, a monument honoring the 16th President of the United States, Abraham Lincoln, known for its impressive architecture and historical significance.
The best holidays to experience in Washington, DC include:
- Memorial Day, marks the unofficial start of summer with parades and remembrance ceremonies
- Labor Day, a long weekend perfect for enjoying the city's parks and outdoor activities
- Thanksgiving, a time for family gatherings and exploring seasonal markets
- Winter Holidays, festive decorations and holiday spirit throughout the city.
The best things to do in Washington, DC include:
- Discover the National Gallery of Art, featuring an extensive collection of European and American art from the Middle Ages to the present
- Stroll through Georgetown, a historic neighborhood known for its cobblestone streets, upscale shops, and vibrant dining scene
- Visit the Library of Congress, the largest library in the world, offering a vast collection of books, recordings, and exhibits
- Explore the vibrant Eastern Market, a historic public market offering fresh food, local arts, and crafts
- Enjoy a performance at the Kennedy Center, a premier venue for the performing arts, featuring theater, dance, and music.
The best season to visit Washington, DC is Spring or Fall. The best weather to explore Washington, DC is during April-June or September-November.
We recommend using the flight as it is the most popular way to get from St. Louis, MO to Washington, DC among Omio's users.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.
In Washington, DC, travelers should be cautious of pickpocketing and petty theft, especially in crowded areas like the National Mall and Metro stations. Common scams include overpriced taxi rides and unofficial tour operators. It's advisable to use licensed transportation services and stay aware of surroundings, particularly at night or in less busy neighborhoods.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.
popular airports
Popular airports from St. Louis, MO to Washington, DC
Most St. Louis, MO to Washington, DC flights use the St. Louis Lambert International Airport to Ronald Reagan National Airport airport pair, with some services landing at Dulles International Airport. Use this guide to compare St. Louis, MO and Washington, DC airports on this route, check city-centre transport, alongside checking practicalities like airport facilities and services.
Departure airports in St. Louis
Arrival airports in Washington
Which St. Louis, MO airport do flights to Washington, DC leave from?
Flights from St. Louis, MO to Washington, DC depart from St. Louis Lambert International Airport. The airport is 1 miles (2 km) from St. Louis, MO city centre at 10701 Lambert Intertiol Blvd, St. Louis, MO 63145, USA.
St. Louis Lambert International Airport (STL)10701 Lambert Intertiol Blvd, St. Louis, MO 63145, USA
City-centre transport
Getting to St. Louis Lambert International Airport from St. Louis city centre
St. Louis Lambert International Airport is 2 km from St. Louis city centre. Public transport options include:
TrainMlr · 31m · $4 · every ~7 min
BusGreyhound US1210 · 25m · $2
St. Louis Lambert International Airport airport facilities and services
St. Louis Lambert International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.
Food and drink
Food options include: Restaurants in both terminals, including fast food and sit-down options like Starbucks and Chili's
Wi-Fi and ATMs
Free Wi-Fi available throughout the airport. ATMs are located in both terminals.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at St. Louis Lambert International Airport: Parking, Taxis, WC.
Bike and car services
Available at St. Louis Lambert International Airport: Car Rental.
Accessibility
Accessibility facilities are available at St. Louis Lambert International Airport: Elevators, ramps.
Shops, hotels and contact
Nearby hotels include Hotels nearby, such as Marriott St. Louis Airport within walking distance..
Which Washington, DC airport do flights from St. Louis, MO arrive at?
Flights from St. Louis, MO to Washington, DC most often arrive at Ronald Reagan National Airport. Some flights land at Dulles International Airport, so check your ticket before travel to confirm your Washington, DC arrival airport.
Ronald Reagan National Airport (DCA)Arlington, VA 22202, USA
City-centre transport
Getting to Ronald Reagan National Airport from Washington city centre
Ronald Reagan National Airport is 4 km from Washington city centre. Public transport options include:
SubwayY · 12m · $4 · every ~20 min
B · 16m · $4 · every ~11 min
Ronald Reagan National Airport airport facilities and services
Ronald Reagan National Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.
Food and drink
Food options include: Restaurants are located in all terminals, offering American, Italian, and fast food options; top choices include Legal Sea Foods and Five Guys.
Wi-Fi and ATMs
Free Wi-Fi available throughout the airport. ATMs are located throughout the airport, near ticketingas and baggage claim.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at Ronald Reagan National Airport: Parking, Taxis, WC.
Bike and car services
Available at Ronald Reagan National Airport: Car Rental.
Accessibility
Accessibility facilities are available at Ronald Reagan National Airport: Elevators, ramps, assistance.
Shops, hotels and contact
Nearby hotels include Hotels within walking distance, including the Crystal Gateway Marriott..
Dulles International Airport (IAD)1 Saarinen Cir, Dulles, VA 20166, USA
City-centre transport
Getting to Dulles International Airport from Washington city centre
Dulles International Airport is 3 km from Washington city centre. Public transport options include:
BusWashington · 58m · $15
Highlands Rhythm, Piedmont Express, Valley Flyer · 1h 20m · $21
SubwayS · 59m · $4 · every ~11 min
S · 1h 0m · $4 · every ~11 min
Dulles International Airport airport facilities and services
Dulles International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.
Food and drink
Food options include: Restaurants located in all concourses; options include fast food, cafes, and sit-down dining like Five Guys and Chipotle.
Wi-Fi and ATMs
Free Wi-Fi available throughout the airport. ATMs are located throughout the airport in all terminals.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at Dulles International Airport: Parking, Taxis, WC.
Bike and car services
Available at Dulles International Airport: Car Rental.
Accessibility
Accessibility facilities are available at Dulles International Airport: Elevators, ramps, assistance.
Shops, hotels and contact
Nearby hotels include Hotels nearby include Washington Dulles Airport Marriott within walking distance..
Most popular flights from St. Louis, MO
More options for your journey from St. Louis, MO to Washington, DC
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Most popular flights to and from Washington, DC and St. Louis, MO
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