- Must visit
Smithsonian National Museum of Natural History
One of the world’s most visited natural history museums, known for dinosaur fossils, the Hope Diamond, and broad family-friendly 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 44 times per day, taking around 2h 16m. Cheap flight tickets for this journey start at $93 (€77) but you can travel from only $82 (€67) 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 1m. 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 $82 (€67)
Distance 708 miles (1141 km) |
Average flight duration 2h 16m |
Cheapest ticket price $93 (€77) |
Flights per day 44 |
Direct flights 4 |
Fastest flight 2h 1m |
First flight 5:00 AM |
Last flight 10:45 PM |
Cheapest Month Apr |
Cheapest Day Thu |
High Season Oct - Dec |
Low Season Apr - Jun |
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 $82 (€67)
The cheapest and fastest flights from St. Louis, MO to Washington, DC
Showing times and prices for Jul 10
Cheapest price
$186
Average price
$238
Fastest journey
4 h 30 m
Average duration
5 h 22 m
Flights per day
4
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 $238 if you buy it on the day, but the cheapest tickets can be found for only $186.
Fast flights
Of the 4 flights that leave St. Louis, MO for Washington, DC onFri, Jul 10, 4 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Fri, Jul 10 the direct flights cover the 1141 km distance in an average of 5 h 22 m but if you time it right, some flights will get you there in just 4 h 30 m .
On Fri, Jul 10 the longest flights will take 5 h 54 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.
7:34 PM4h30St. Louis, MO12:04 AMWashington, DC$1861One-way0 transfers- 10:21 PM5h45St. Louis, MO4:06 AMWashington, DC$1911One-way0 transfers
- 1:00 PM5h54St. Louis, MO6:54 PMWashington, DC$2061One-way0 transfers
1:41 PM5h20St. Louis, MO7:01 PMWashington, DC$3691One-way0 transfers
- 7:34 PM4h30St. Louis, MO12:04 AMWashington, DC$1861One-way0 transfers
- 1:41 PM5h20St. Louis, MO7:01 PMWashington, DC$3691One-way0 transfers
- 10:21 PM5h45St. Louis, MO4:06 AMWashington, DC$1911One-way0 transfers
- 1:00 PM5h54St. Louis, MO6:54 PMWashington, DC$2061One-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 $82. For those with little time consider booking a flight which can get you there in 2h 16m. The ticket price range depends on the travel mode: a bus costs an average of $82, and a train costs an average of $114.
Distance: 708 miles (1141 km)
Compare flight with
Most popular Flight | Bus | Train | Driving |
|---|---|---|---|
$195 Average price | $141 Average price Cheapest | $330 Average price | $174 Average price (fuel + tolls) |
5h 16m Average total duration Fastest 2h 16m Onboard + 3h 0m Additional time* | 21h 25m Average total duration 20h 55m Onboard + 30m Additional time* | 28h 41m Average total duration 28h 11m 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 $141 (€115).
This is compared to other travel options from St. Louis, MO to Washington, DC:
A bus is $54 (€45) less than a flight for this route with tickets for a flight from St. Louis, MO to Washington, DC costing on average $195 (€160).
A bus is $190 (€156) less than a train for this route with tickets for a train from St. Louis, MO to Washington, DC costing on average $330 (€271).
The fastest way to travel from St. Louis, MO to Washington, DC is by flight with an average journey time of 2h 16m.
Other travel options to Washington, DC take longer:
Bus takes on average 20h 55m.
Train takes on average 28h 11m.
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 tomorrow, Friday, July 10. You can also manually refresh the results below to see updated flight journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| 1:00 PM St. Louis, MO | 5h54 | 6:54 PM Washington, DC | 0 transfersDirect | |
| 1:41 PM St. Louis, MO | 5h20 | 7:01 PM Washington, DC | 0 transfersDirect | |
| 7:34 PM St. Louis, MO | 4h30 | 12:04 AM Washington, DC | 0 transfersDirect | |
| 10:21 PM St. Louis, MO | 5h45 | 4:06 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 $82 (€67). 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 1m
Cheapest Price
$93 (€77)
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
Things to do in Washington
Discover the best of Washington — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Washington trip today.
- Must visit
National Air and Space Museum
Flagship Smithsonian museum covering aviation and spaceflight, with iconic aircraft, spacecraft, and major interactive exhibits.
- Must visit
National Gallery of Art
Premier art museum with strong collections from the Middle Ages to modern art, plus sculpture garden and rotating exhibitions.
- Must visit
National Mall
The city’s grand ceremonial park lined with Smithsonian museums, memorials, and iconic government buildings.
- Must visit
Georgetown
Historic neighborhood of cobblestone streets, waterfront walks, rowhouses, and some of Washington’s most photogenic corners.
- Must visit
Tidal Basin
Scenic waterside loop famous for cherry blossoms and views of major memorials, especially popular for sunrise and spring visits.
Half-Smoke
Washington’s signature sausage, usually smoky and spicy, served on a bun with chili, mustard, and onions. It is one of the city’s most iconic street foods.
Mumbo Sauce With Fried Chicken Wings
A sweet-tangy sauce closely associated with Washington carryout culture, often paired with fried chicken wings and fries. It is a local comfort-food staple.
- Gluten-free
Chesapeake Blue Crab
Steamed or picked blue crab from the nearby Chesapeake region is deeply tied to local food traditions. It is especially popular in warmer months.
Rose's Luxury
Celebrated upscale restaurant with creative small plates and a warm, energetic atmosphere. It is one of Washington’s best-known modern dining destinations.
Old Ebbitt Grill
A classic, long-running Washington institution known for oysters, crab cakes, and traditional American fare in an elegant historic atmosphere.
Le Diplomate
Bustling brasserie known for polished French classics, strong brunch, and a stylish dining room that is popular with both locals and visitors.
United States Dollar
Prices are high for hotels and dining, especially downtown. Free museums help balance daily costs.
Average meal costs
- Budget
- USD 10-18 for fast food or casual takeout.
- Mid-range
- USD 25-45 per person at a mid-range restaurant.
- Fine dining
- USD 80+ per person before drinks and tax.
- Coffee
- USD 4-7 for a regular coffee or latte.
Tipping culture
Tip 18-20% at restaurants. USD 1-2 per drink at bars, round up taxis, and tip hotel staff USD 2-5.
DC Metro and Bus
Get the appOfficial public transport app
Prices
- Single ticket
- USD 2.25
- Day pass
- USD 13.00
To the city center
Dulles International Airport, Washington -> Metro Center, Washington
- Distance
- 42 km
- Travel time
- 50 min
- Tap a contactless bank card or mobile wallet at Metrorail faregates and on Metrobus; SmarTrip also works across the system.
- Metrobus fare is USD 2.25 and includes free transfers within 2 hours; Metrorail fares vary by distance and time of day.
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 $93 (€77) when you book in advance. The average flight ticket price for St. Louis, MO to Washington, DC is $195 (€160) ; 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 1m 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.
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 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.
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.
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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