Harrisburg, PA HAR to St. Louis, MO STL flight with United

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Journey information

Overview: Harrisburg, PA to St. Louis, MO flight

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Flights from Harrisburg, PA to St. Louis, MO depart on average 50 times per day, taking around 3h 56m. Cheap flight tickets for this journey start at kr3500 but you can travel from only kr815 by bus.

The earliest flight runs at 05:00, the last at 21:28. The fastest flight covers the 718 miles (1157 km) distance in 3h 25m. March 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 kr815
Distance
718 miles (1157 km)
Average flight duration
3h 56m
Cheapest ticket price
kr3500
Flights per day
50
Fastest flight
3h 25m
First flight
5:00 AM
Last flight
9:28 PM
Cheapest Month
Mar
Cheapest Day
Wed
High Season
Jul - Sep
Low Season
Jan - Mar
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 kr815

Travel Information

Compare train and bus for Harrisburg, PA to St. Louis, MO

Omio recommends booking the bus as it is the most popular option from Harrisburg, PA to St. Louis, MO among Omio's users. If you are prioritising price, take the bus, with an average ticket price of kr1282 For those with little time, consider booking a bus, which has an average total journey time of 19h 51m. Average ticket prices depend on the travel mode: a bus costs an average of kr1282, while a train costs an average of kr4339.

Distance: 718 miles (1157 km)

Compare bus with

Most popular
Bus
Train
Driving

kr1282

Average price

Cheapest

kr4339

Average price

kr1511

Average price

(fuel + tolls)

19h 51m

Average total duration

Fastest

19h 21m

Onboard

+

30m

Additional time*

20h 52m

Average total duration

20h 22m

Onboard

+

30m

Additional time*

12h 37m

Average total duration

(door-to-door)

Greyhound

Most popular bus company

Amtrak

Most popular train company

Your own car or car rental

Direct Options

Direct Options

Direct Options

The cheapest way to travel from Harrisburg, PA to St. Louis, MO is a bus with an average price of kr1282.

This is compared to other travel options from Harrisburg, PA to St. Louis, MO:

A bus is kr3057 less than a train for this route with tickets for a train from Harrisburg, PA to St. Louis, MO costing on average kr4339.

A bus is kr4715 less than a flight for this route with tickets for a flight from Harrisburg, PA to St. Louis, MO costing on average kr5997.

The fastest way to travel from Harrisburg, PA to St. Louis, MO is by flight with an average journey time of 3h 56m.

Other travel options to St. Louis, MO take longer:

Bus takes on average 19h 21m.

Train takes on average 20h 22m.

It's helpful to compare your options as there are 2 ways to travel between Harrisburg, PA and St. Louis, MO including taking a train and bus.
We recommend using the flight as it is the most popular way to get from Harrisburg, PA to St. Louis, MO among Omio's users.

Compare prices and tickets Harrisburg, PA to St. Louis, MO by train or bus

Compare train and bus 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.

Tue
Sep 15
Wed
Sep 16
Thu
Sep 17
Fri
Sep 18
Sat
Sep 19
Sun
Sep 20
Mon
Sep 21

Why should you book Harrisburg, PA to St. Louis, MO flights with Omio?

American Airlines operates all flights services from Harrisburg, PA to St. Louis, MO.
Omio is an official ticket reseller for all your travel options from Harrisburg, PA to St. Louis, MO.

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 and bus to ensure you get the best deal for traveling from Harrisburg, PA to St. Louis, MO.

Why book with Omio over Trip, Edreams or Skyscanner?

  • Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from Harrisburg, PA to St. Louis, MO.

Airlines: United, American Airlines, Republic Airlines, psa airlines from Harrisburg, PA to St. Louis, MOFind the best flights between Harrisburg, PA to St. Louis, MO with Omio's travel partners United, American Airlines, Republic Airlines, psa airlines from kr815. We can find you the best deals, schedules and tickets when comparing and booking the best trip.

United

About
United Airlines, established in 1926, is a major U.S. airline headquartered in Chicago, Illinois. Operating an extensive domestic and international network, United serves more destinations than any other airline, connecting travelers across six continents. The airline's eight hubs include Chicago–O'Hare, Denver, Houston–Intercontinental, Los Angeles, Newark, San Francisco, Washington–Dulles, and Guam. As a founding member of the Star Alliance, United offers a comprehensive range of services, including regional flights through United Express, catering to both leisure and business travelers. The airline is committed to sustainability, investing in sustainable aviation fuel and innovative technologies to reduce its environmental impact.
Luggage & cancellation policy
Average United Duration
3h 25m
Cheapest United Price
kr3500
United frequency
24 a day
Luggage included
Carry-on baggage allowance is 7kg total (2 pieces max. ) for both Choice and Flex fares on United Airlines and Virgin Australia flights.
Additional luggage
Excess baggage fees apply for additional checked luggage beyond the standard allowance.
Luggage storage
Both airlines provide checked baggage services for storing luggage during flights.
Cancellation Policy
Cancellation fees apply per person, per booking, with specific fees for different fare types.
Refund
Not applicable to flights; however, full refunds are available if flights are canceled by the airline.
Pregnant on board
Pregnant passengers are permitted to travel, with specific guidelines and medical certificates required after a certain gestational period.
Unaccompagned minor
Unaccompanied minors are permitted to travel, with specific age restrictions and services provided.
Amenities on board the airplane
Wifi
Food sold onboard
Meals and snacks are included on international flights operated by United Airlines and Virgin Australia.
Seat reservation
Seat selection may incur additional fees, depending on the fare type and airline.
Toilets
USB plugs
Accessibility
United Airlines and Virgin Australia offer services to and within Australia, providing accessible travel options for passengers with mobility needs.
Bikes
Both airlines permit bicycles onboard, with specific guidelines and fees.
Pets
United Airlines and Virgin Australia allow pets onboard, subject to specific policies and fees.

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 American Airlines Duration
3h 30m
Cheapest American Airlines Price
kr3500
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.

psa airlines

About
PSA Airlines is an American regional airline and a wholly-owned subsidiary of the American Airlines Group, operating exclusively on behalf of American Airlines under the American Eagle brand. Headquartered in Charlotte, North Carolina, PSA Airlines operates over 800 daily flights to nearly 100 destinations across the United States. The airline maintains an all-jet fleet consisting of Bombardier CRJ700 and CRJ900 regional aircraft. With a team of over 5,000 employees, PSA Airlines plays a significant role in connecting smaller cities to major hubs within American Airlines' network.
Luggage & cancellation policy
Average psa airlines Duration
3h 35m
Cheapest psa airlines Price
kr4254
psa airlines frequency
3 a day
Luggage included
One carry-on bag and one personal item are allowed.
Additional luggage
Additional luggage can be checked for a fee, with weight limits up to 32kg (70lbs) for a single piece.
Cancellation Policy
PSA Airlines' cancellation policy depends on the timeframe of cancellation and ticket flexibility, with some flexible ticket options offering easier cancellations.
Refund
Passengers are entitled to a refund if the airline cancels a flight and they choose not to travel.
Amenities on board the airplane
Food sold onboard
Non-alcoholic beverages are complimentary in Economy Class, while alcoholic drinks and snack boxes can be purchased.
Seat reservation
Seat selection for standard seating is typically included, but preferred or Main Cabin Extra seats may require an additional fee.
Accessibility
Wheelchair assistance is available and should be requested at least 24 hours prior to flight departure.
Bikes
Bicycles can be carried as checked baggage if handlebars are turned sideways, pedals are removed, tires are deflated, and the bike is packed in a case or durable cardboard box.

Republic Airlines

About
Republic Airways is a major regional airline in the United States, operating as a subsidiary of Republic Airways Holdings. It provides scheduled passenger service for American Airlines (as American Eagle), Delta Air Lines (as Delta Connection), and United Airlines (as United Express) using a fleet of Embraer 170 and 175 regional jets. Headquartered in Indianapolis, Indiana, Republic Airways operates over 900 daily flights to more than 80 cities across the U.S. and Canada. The company is known for its large fleet of Embraer E-Jets and its state-of-the-art training facilities. In April 2025, Republic Airways Holdings announced its acquisition of Mesa Air Group, which is expected to create the second-largest regional carrier in the U.S.
Luggage & cancellation policy
Average Republic Airlines Duration
3h 30m
Cheapest Republic Airlines Price
kr4748
Republic Airlines frequency
5 a day
Luggage included
One carry-on bag (24 x 16 x 10) and one personal item
Additional luggage
Checked bags for a fee
Cancellation Policy
Tickets are non-refundable but may be cancelled for future flight credit minus applicable fees
Pregnant on board
Passengers can fly up to the end of their 36th week for single pregnancies and the end of their 32nd week for multiple pregnancies
Unaccompagned minor
Unaccompanied minor service is available for children ages 5-14. Must be booked directly with Republic Airlines
Amenities on board the airplane
USB plugs
Accessibility
Republic Airlines offers assistance for passengers with reduced mobility, including wheelchair services and priority boarding. Passengers are advised to request these services in advance to ensure availability and proper arrangements.

Complete guide to St. Louis, MO

Things to do in St. Louis, MO

Discover the best of St. Louis, MO — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect St. Louis, MO trip today.

  • Must visit

Saint Louis Art Museum

Vast art museum in Forest Park with global collections from antiquity to modern works and strong free general admission.

  • Recommended

Missouri History Museum

Leading history museum covering St. Louis, Missouri, and national stories through rotating exhibitions in Forest Park.

  • Recommended

Saint Louis Science Center

Interactive science museum with hands-on exhibits, planetarium, and family-friendly displays near Forest Park.

United States dollar ($)

Moderate for U.S. city breaks: hotels and dining are reasonable, transit is limited, and attractions often cost less than in larger U.S. tourist cities.

Average meal costs

Budget
$10-15 for fast food or casual lunch.
Mid-range
$20-35 per person for a mid-range restaurant meal.
Fine dining
$60+ per person at upscale restaurants.
Coffee
$3-5 for coffee or cappuccino.

Tipping culture

Tip 18-20% at restaurants, $1-2 per drink at bars, and 10-15% for taxis. Cafes often have tip jars or screen prompts.

FAQs: Harrisburg, PA to St. Louis, MO Flight

Find answers to the most common questions about traveling from Harrisburg, PA to St. Louis, MO 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 St. Louis, MO, this guide helps you travel smarter and with confidence.

FAQs
Cheap plane tickets from Harrisburg, PA to St. Louis, MO can start from as little as kr3500 when you book in advance. The average flight ticket price for Harrisburg, PA to St. Louis, MO is kr5997 ; 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 Harrisburg, PA to St. Louis, MO is 3h 25m to travel the 718 miles (1157 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 Harrisburg, PA to St. Louis, MO leaves at 5:00 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Harrisburg, PA to St. Louis, MO leaves at 9:28 PM.
There are 50 flights a day from Harrisburg, PA to St. Louis, MO which require at least one change with American Airlines. Schedules can vary on holidays or weekends with fewer flights.
When taking a flight from Harrisburg, PA to St. Louis, MO, you can count on American Airlines for the best way to get you to St. Louis, MO. You can also check all possible airlines who offer a service between Harrisburg, PA and St. Louis, MO and compare the amenities they offer before buying a plane ticket.
Flights from Harrisburg, PA to St. Louis, MO generally leave from Harrisburg International Airport and arrive in St. Louis Lambert International Airport.Harrisburg International Airport is 1 miles (2 km) away from Harrisburg, PA city centre and St. Louis Lambert International Airport is 1 miles (2 km) from St. Louis, MO city centre.
The cheapest month for a flight from Harrisburg, PA to St. Louis, MO is March.
It's helpful to compare your options as there are 2 ways to travel between Harrisburg, PA and St. Louis, MO including taking a train and bus.
Since neither Harrisburg, PA nor St. Louis, MO 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 Harrisburg, PA and St. Louis, MO all year round.
The best events to attend in St. Louis, MO include:
  • St. Louis Mardi Gras, a vibrant celebration featuring parades, live music, and festive activities in the Soulard neighborhood
  • St. Louis Art Fair, an annual event showcasing local and national artists with art exhibits, live performances, and culinary delights
  • Fair St. Louis, a multi-day Independence Day festival with fireworks, concerts, and family-friendly activities along the Gateway Arch.
The best holidays to experience in St. Louis, MO include:
  • Independence Day, vibrant fireworks and festive celebrations throughout the city
  • Labor Day, pleasant weather and various outdoor activities
  • Thanksgiving, a time for family gatherings with a charming autumn atmosphere.
The best season to visit St. Louis, MO is Spring or Fall. The best weather to explore St. Louis, MO is during April-May or September-October.
We recommend using the flight as it is the most popular way to get from Harrisburg, PA to St. Louis, MO 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 St. Louis, MO, travelers should be cautious in certain neighborhoods with higher crime rates, especially after dark. Common safety concerns include petty theft, pickpocketing, and occasional scams targeting visitors near popular attractions like the Gateway Arch. It’s advisable to stay in well-populated areas, avoid displaying valuables openly, and use reputable transportation services to minimize risks.
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 Harrisburg, PA to St. Louis, MO

Most Harrisburg, PA to St. Louis, MO flights use the Harrisburg International Airport to St. Louis Lambert International Airport airport pair. Use this guide to compare Harrisburg, PA and St. Louis, MO airports on this route, check city-centre transport, alongside checking practicalities like airport facilities and services.

Departure airports in Harrisburg
Arrival airports in St. Louis

Which Harrisburg, PA airport do flights to St. Louis, MO leave from?

Flights from Harrisburg, PA to St. Louis, MO depart from Harrisburg International Airport. The airport is 1 miles (3 km) from Harrisburg, PA city centre at 1 terminal Dr, Middletown, PA 17057, USA.
Harrisburg International Airport (MDT)1 terminal Dr, Middletown, PA 17057, USAWifiShoppingParkingDiningATMTaxisAccessibilityWCHotelLoungeLost and Found OfficeCar Rental
City-centre transport

Getting to Harrisburg International Airport from Harrisburg city centre

Harrisburg International Airport is 2 km from Harrisburg city centre. Public transport options include:

Bus7 · 25m · kr23 · every ~3 min
7 · 1h 43m · kr23

Harrisburg International Airport airport facilities and services

Harrisburg International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lounge, Lost and Found Office, and Car Rental.

Food and drink

Food options include: Restaurants available; Main terminal, American and fast food options like Starbucks and Subway

Wi-Fi and ATMs

Free Wi-Fi available throughout the airport. ATMs are located; Located in the main terminal.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Harrisburg International Airport: Parking, Taxis, WC.

Bike and car services

Available at Harrisburg International Airport: Car Rental.

Accessibility

Accessibility facilities are available at Harrisburg International Airport: Elevators, ramps.

Shops, hotels and contact

Nearby hotels include Hotels nearby, Within walking distance, Fairfield Inn & Suites..

More options for your journey from Harrisburg, PA to St. Louis, MO

Here are some other resources that might have the information you need

HomeFlightsFlights in USAFlight Schedules to St. Louis, MOHarrisburg, PA to St. Louis, MO Flights

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