HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Harrisburg

$86+ Cheap flights from St. Louis to Harrisburg (STL - MDT)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MDT
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Harrisburg 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.

Cheap flight deals from St. Louis to Harrisburg

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Harrisburg (MDT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$174
(Trip.com)

One-way from

$86
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$379
Provider with most accurate pricing for Lambert-St Louis-Harrisburg flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Harrisburg flights.
Search Deals
From Lambert-St Louis to Harrisburg
Search Deals
One-way flight from Lambert-St Louis to Harrisburg
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Best time to find cheap flights, 1% potential price drop
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from St. Louis to Harrisburg

Cheapest flights from St. Louis to Harrisburg
Explore the most affordable flight options available from St. Louis to Harrisburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This Trip.com deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/28:22 amSTL - MDT
1 stop9h 30mFrontier
Fri 2/79:32 amMDT - STL
1 stop14h 59mFrontier
Deal found 1/16$174
This Delta deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/196:00 amSTL - MDT
1 stop5h 11mDelta
Mon 2/246:00 pmMDT - STL
1 stop6h 37mDelta
Deal found 1/15$253
This American Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/145:45 amSTL - MDT
1 stop5h 49mAmerican Airlines
Tue 2/186:32 amMDT - STL
1 stop8h 19mAmerican Airlines
Deal found 1/16$274
This United deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/268:00 amSTL - MDT
2 stops14h 00mUnited Airlines
Sat 3/296:10 amMDT - STL
1 stop5h 52mUnited Airlines
Deal found 1/15$428

Find flights from St. Louis to Harrisburg within your budget

Customize your flight search to find flights from St. Louis to Harrisburg that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Sun 2/2

8:22 am-6:52 pm

1 stop9h 30m

Harrisburg

Fri 2/7

9:32 am-11:31 pm

1 stop14h 59m

$174

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Wed 2/19

6:00 am-12:11 pm

1 stop5h 11m

Harrisburg

Mon 2/24

6:00 pm-11:37 pm

1 stop6h 37m

$253

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Fri 2/14

5:45 am-12:34 pm

1 stop5h 49m

Harrisburg

Tue 2/18

6:32 am-1:51 pm

1 stop8h 19m

$274

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Wed 3/26

8:00 am-11:00 pm

2 stops14h 00m

Harrisburg

Sat 3/29

6:10 am-11:02 am

1 stop5h 52m

$428

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Sat 2/1

5:05 pm-6:52 pm

1 stop24h 47m

$86

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Wed 1/29

6:00 am-12:15 pm

1 stop5h 15m

$165

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Fri 2/14

9:50 am-6:47 pm

2 stops7h 57m

$213

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Fri 1/31

1:02 pm-9:13 pm

1 stop7h 11m

$280

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Wed 1/22

6:29 pm-11:58 pm

1 stop4h 29m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Compare providers for flights from St. Louis to Harrisburg

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 St. Louis to Harrisburg in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 St. Louis-Harrisburg flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Harrisburg flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Harrisburg flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Harrisburg 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 St. Louis-Harrisburg 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 St. Louis to Harrisburg

Have a flexible travel schedule? Discover the best time to fly to Harrisburg from St. Louis 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 St. Louis to Harrisburg

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

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Harrisburg (average of $355). Flying from St. Louis to Harrisburg in June is currently the most expensive (average of $453). 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 STL to MDT?

Find hourly flight availability from St. Louis to Harrisburg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Harrisburg in the morning. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight at noon.

Rainfall in Harrisburg by month

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

In terms of precipitation, rainfall in Harrisburg ranges from 2.7 - 4.1 inches per month. May is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Harrisburg when rainfall is around 2.7 in.

Temperature in Harrisburg by month

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

If weather is an important factor for your trip to Harrisburg, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Harrisburg

Get insights into the airlines that provide service to Harrisburg. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Harrisburg. Reviews last updated January 17, 2025.
To help decide which airline to fly from St. Louis to Harrisburg, see what other customers have to say about United Airlines and Frontier. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

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
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

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
8,964 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

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
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

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
3,435 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

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

Find useful and relevant information for your journey from St. Louis to Harrisburg. 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 St. Louis to Harrisburg round-trip?

    Flying on Frontier is currently your cheapest option to Harrisburg, with prices starting at $174. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $253 and $274, respectively. Frontier is priced at 47% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Harrisburg one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $86. Users have also found prices from $165 and $280 on Delta and United Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Harrisburg 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 St. Louis to Harrisburg?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Harrisburg (average of $355). Flying from St. Louis to Harrisburg in June is currently the most expensive (average of $453). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Carlisle
Hershey
Camp Hill
Mechanicsburg

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 St. Louis to Harrisburg

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to LaGuardia flights
St. Louis to Newark flights
Kansas City to LaGuardia flights
Kansas City to Reagan-National flights
St. Louis to Dulles Intl flights
Kansas City to Newark flights
St. Louis to John F Kennedy Intl flights
Kansas City to John F Kennedy Intl flights
Kansas City to Dulles Intl flights
St. Louis to Philadelphia flights
St. Louis to Reagan-National flights
Kansas City to Philadelphia flights
Springfield to Newark flights
Springfield to John F Kennedy Intl flights
St. Louis to Pittsburgh flights
Kansas City to Pittsburgh flights
Springfield to LaGuardia flights
Springfield to Dulles Intl flights
Kansas City to Harrisburg flights
Springfield to Reagan-National flights
St. Louis to State College flights
Springfield to Harrisburg flights
Kansas City to Allentown flights
Springfield to Allentown flights
St. Louis to Allentown flights
Columbia to John F Kennedy Intl flights
St. Louis to Scranton flights
Springfield to Philadelphia flights
Columbia to LaGuardia flights
Joplin to LaGuardia flights
Columbia to Dulles Intl flights
Joplin to Reagan-National flights
Columbia to Reagan-National flights
Joplin to Dulles Intl flights
Columbia to Newark flights
Joplin to Newark flights
Kansas City to Scranton flights
Joplin to Philadelphia flights
Columbia to Pittsburgh flights
Springfield to Pittsburgh flights
Columbia to Philadelphia flights
Kansas City to Erie flights
Kansas City to Elmira flights
St. Louis to Elmira flights
Joplin to John F Kennedy Intl flights
Branson to Philadelphia flights
Fort Leonard Wood to Reagan-National flights

Top 3 airlines flying from St. Louis to Harrisburg

Discover the top 3 airlines that operate flights from St. Louis to Harrisburg. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$237Average$322FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$324FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$251Average$343FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.