What are the cheapest airlines flying from Harrisburg to St. Louis round-trip?

Frontier, at $248, was found to be the cheapest airline from Harrisburg to St. Louis.Alternate airlines to your destination round-trip include American Airlines and Delta. Frontier is currently priced 30% below the average price you’ll pay for this route.

What is the cheapest day to fly from Harrisburg to St. Louis?

Travelers seeking maximum savings on their Harrisburg to St. Louis flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Harrisburg to St. Louis?

The most popular airlines flying from Harrisburg to St. Louis are American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Harrisburg to St. Louis?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 142% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Harrisburg to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 24 days in advance, which can save you up to 40% on flights from Harrisburg to St. Louis compared to booking the week you need them. Waiting 24 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $320. For sooner than that we have options available in the next 3 days from $420.

What is the cheapest month to fly from Harrisburg to St. Louis?

October is one of the best times of the year to fly to St. Louis from Harrisburg. Prices for October average $357 per person but you can even find prices for as low as $238. The most expensive prices can be found in the month of March. Opting for a October flight can save you 34% on your journey compared to booking in March

Most accurate provider : When it comes to deals on Harrisburg-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harrisburg-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harrisburg-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Harrisburg-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harrisburg-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Harrisburg to St. Louis that include hotel bookings?

Yes. In addition to deals on Harrisburg to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Harrisburg to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to St. Louis.

Can I find deals for business class flights from Harrisburg to St. Louis?

Yes. Cheapflights offers flight deals from Harrisburg to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$202+ Flights from Harrisburg, Pennsylvania to St. Louis, Missouri

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Find cheap flights from Harrisburg to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Harrisburg to Lambert-St Louis are usually found in October or December, booked 23 days in advance, depart on a Thursday or Saturday and return on a Wednesday

Cheap flight deals from Harrisburg to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	March
Cheapest in	October
Round-trip from	$248 (Booking.com)
One-way from	$202 (Mytrip)

Provider with most accurate pricing for Harrisburg-Lambert-St Louis flight deals.

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Provider most trusted by Cheapflights users for Harrisburg-Lambert-St Louis flights.

Search Deals

High demand for flights, 25% potential price rise

Search Deals

Best time to find cheap flights, 20% potential price drop

Search Deals

From Harrisburg to Lambert-St Louis

Search Deals

One-way flight from Harrisburg to Lambert-St Louis

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Find flight deals from Harrisburg to St. Louis

Cheapest flights from Harrisburg to St. Louis
Explore the most affordable flight options available from Harrisburg to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

Fri 12/137:42 pmMDT - STL

1 stop5h 17mAmerican Airlines

Mon 12/161:45 pmSTL - MDT

1 stop5h 05mAmerican Airlines

Deal found 11/20

$248

Tue 12/241:50 pmMDT - STL

1 stop7h 53mDelta

Thu 12/266:29 amSTL - MDT

1 stop4h 10mDelta

Deal found 11/20

$293

Thu 12/196:30 amMDT - STL

1 stop5h 17mUnited Airlines

Wed 12/255:30 pmSTL - MDT

1 stop4h 26mUnited Airlines

Deal found 11/19

$363

Best flights from Harrisburg to St. Louis
Discover carefully curated flight deals from Harrisburg to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 20, 2024.

Sun 12/223:45 pmMDT - STL

1 stop9h 13mFrontier

Mon 12/235:45 pmSTL - MDT

1 stop18h 14mFrontier

Deal found 11/20

$248

Fri 12/67:42 pmMDT - STL

1 stop5h 17mAmerican Airlines

Sun 12/85:45 amSTL - MDT

1 stop5h 38mAmerican Airlines

Deal found 11/20

$283

Tue 12/241:50 pmMDT - STL

1 stop7h 53mDelta

Thu 12/266:29 amSTL - MDT

1 stop4h 10mDelta

Deal found 11/20

$293

Thu 12/196:30 amMDT - STL

1 stop5h 17mUnited Airlines

Wed 12/255:30 pmSTL - MDT

1 stop4h 26mUnited Airlines

Deal found 11/19

$363

Last-minute flights from Harrisburg to St. Louis
Discover last-minute flight deals from Harrisburg to St. Louis. Data last updated November 20, 2024 and is based on user searches.

Wed 11/275:00 pmMDT - STL

1 stop4h 59mAmerican Airlines

Sat 11/309:30 amSTL - MDT

1 stop5h 50mAmerican Airlines

Deal found 11/19

$474

Wed 11/274:55 pmMDT - STL

2 stops7h 46mDelta

Sat 11/307:11 pmSTL - MDT

1 stop4h 38mDelta

Deal found 11/19

$583

Wed 11/272:48 pmMDT - STL

3 stops26h 50mUnited Airlines

Sat 11/308:25 amSTL - MDT

1 stop4h 24mUnited Airlines

Deal found 11/19

$792

Fri 12/137:42 pmMDT - STL

1 stop5h 17mAmerican Airlines

Mon 12/161:45 pmSTL - MDT

1 stop5h 05mAmerican Airlines

Deal found 11/20

$248

Thu 12/196:30 amMDT - STL

1 stop5h 17mUnited Airlines

Wed 12/255:30 pmSTL - MDT

1 stop4h 26mUnited Airlines

Deal found 11/19

$363

Tue 12/241:50 pmMDT - STL

1 stop7h 53mDelta

Thu 12/266:29 amSTL - MDT

1 stop4h 10mDelta

Deal found 11/20

$293

One-way flights from Harrisburg to St. Louis
Search for one-way flight options from Harrisburg to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 20, 2024.

Mon 12/99:48 pmMDT - STL

2 stops18h 33mMultiple Airlines

Deal found 11/19

$202

Tue 1/77:41 amMDT - STL

1 stop4h 42mAmerican Airlines

Deal found 11/20

$219

Sat 1/43:00 pmMDT - STL

1 stop6h 23mUnited Airlines

Deal found 11/20

$254

Find flights from Harrisburg to St. Louis within your budget

Fly from

Fly to

Route

Depart

Return

Price

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Fri 1/17

9:32 am-11:31 pm

1 stop14h 59m

Lambert-St Louis

Sun 1/19

8:22 am-6:52 pm

1 stop9h 30m

$208

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Fri 12/13

7:42 pm-11:59 pm

1 stop5h 17m

Lambert-St Louis

Mon 12/16

1:45 pm-7:50 pm

1 stop5h 05m

$248

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Tue 12/24

1:50 pm-8:43 pm

1 stop7h 53m

Lambert-St Louis

Thu 12/26

6:29 am-11:39 am

1 stop4h 10m

$293

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Thu 12/19

6:30 am-10:47 am

1 stop5h 17m

Lambert-St Louis

Wed 12/25

5:30 pm-10:56 pm

1 stop4h 26m

$363

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Mon 12/9

9:48 pm-3:21 pm

2 stops18h 33m

$202

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Tue 1/7

7:41 am-11:23 am

1 stop4h 42m

$219

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Sat 1/4

3:00 pm-8:23 pm

1 stop6h 23m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Compare providers for flights from Harrisburg to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harrisburg to St. Louis in November.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Harrisburg-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harrisburg-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harrisburg-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Harrisburg-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harrisburg-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harrisburg to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Harrisburg with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Harrisburg to St. Louis

Get recent, data-driven insights about flights from Harrisburg to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Harrisburg to St. Louis?

Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Harrisburg to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Harrisburg to St. Louis?

Currently, September is the cheapest month in which you can book a flight from Harrisburg to St. Louis (average of $308). Flying from Harrisburg to St. Louis in March is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MDT to STL?

Unlike at noon, when flights are generally more expensive, you can save up to 34% on flights from Harrisburg to St. Louis by exploring options for tickets in the morning.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

See what other customers who have flown with United Airlines, American Airlines and Delta from Harrisburg to St. Louis have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

8,756 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

9,171 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier

6.1

Okay

3,539 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from Harrisburg to St. Louis round-trip?
Frontier, at $248, was found to be the cheapest airline from Harrisburg to St. Louis.Alternate airlines to your destination round-trip include American Airlines and Delta. Frontier is currently priced 30% below the average price you’ll pay for this route.
Can I find deals for flights from Harrisburg to St. Louis that include hotel bookings?
Yes. In addition to deals on Harrisburg to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harrisburg to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to St. Louis.
Can I find deals for business class flights from Harrisburg to St. Louis?
Yes. Cheapflights offers flight deals from Harrisburg to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Harrisburg to St. Louis?
Currently, September is the cheapest month in which you can book a flight from Harrisburg to St. Louis (average of $308). Flying from Harrisburg to St. Louis in March is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Harrisburg to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$238	Average$413	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$247	Average$350	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$248	Average$324	FlexibilityNo cancel fee	On-time71%

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$202+ Cheap flights from Harrisburg to St. Louis (MDT - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harrisburg to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Harrisburg to Lambert-St Louis are usually found in October or December, booked 23 days in advance, depart on a Thursday or Saturday and return on a Wednesday

Cheap flight deals from Harrisburg to St. Louis

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Round-trip from

One-way from

Find flight deals from Harrisburg to St. Louis

Cheapest flights from Harrisburg to St. LouisExplore the most affordable flight options available from Harrisburg to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

Explore the most affordable flight options available from Harrisburg to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

Find flights from Harrisburg to St. Louis within your budget

Compare providers for flights from Harrisburg to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harrisburg to St. Louis in November.

Best time to book a flight from Harrisburg to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Harrisburg with our price prediction graph.

Travel insights for flights from Harrisburg to St. Louis

Get recent, data-driven insights about flights from Harrisburg to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Harrisburg to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Harrisburg to St. Louis. Price data was last updated on November 15, 2024.

What is the cheapest month to book a flight from Harrisburg to St. Louis?

What is the cheapest time of day to fly from MDT to STL?

Find hourly flight availability from Harrisburg to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

See what other customers who have flown with United Airlines, American Airlines and Delta from Harrisburg to St. Louis have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Harrisburg to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Harrisburg to St. Louis round-trip?

Can I find deals for flights from Harrisburg to St. Louis that include hotel bookings?

How can I find direct flights from Harrisburg to St. Louis?

Can I find deals for business class flights from Harrisburg to St. Louis?

What is the cheapest month to book a flight from Harrisburg to St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Harrisburg to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Harrisburg to St. Louis

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Cheapest flights from Harrisburg to St. Louis
Explore the most affordable flight options available from Harrisburg to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.