Cheap flights from St. Louis to Harrisburg (STL - MDT) from $157

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 3/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — MDT
Feb 25 — Mar 31

The best prices from Lambert-St Louis to Harrisburg are usually found in November or June, booked 52 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

How to find the cheapest flight from St. Louis (STL) to Harrisburg (MDT)

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 February 21, 2024.

Popular in

July

Cheapest in

November

Round-trip from

$376

One-way from

$190
High demand for flights, 16% potential price rise
Best time to find cheap flights, 26% potential price drop
From Lambert-St Louis to Harrisburg
One-way flight from Lambert-St Louis to Harrisburg

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

Thursday flights are generally found to be more expensive for flights from St. Louis to Harrisburg. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Harrisburg.

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

Find a great deal and save up to 181% by booking at least 53 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Harrisburg within the next two weeks, with the cheapest ticket starting at $467.

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

November can be a great time to fly to Harrisburg from St. Louis with a flight ticket averaging about $431. Cheapflights users have found deals in the month of November for as cheap as $320. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from St. Louis to Harrisburg (STL - MDT)?

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 in the afternoon.

Cheap American Airlines flights from St. Louis to Harrisburg

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Harrisburg. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 21, 2024.
Consider these cheap American Airlines flights we've found departing from St. Louis to Harrisburg. Make sure to double check the flight details before booking.
Tue 4/165:15 amSTL - MDT
1 stop4h 57mAmerican Airlines
Mon 4/225:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Deal found 2/18$267
Fri 8/166:37 amSTL - MDT
1 stop3h 49mAmerican Airlines
Mon 8/195:40 pmMDT - STL
1 stop4h 27mAmerican Airlines
Deal found 2/19$311
Fri 8/1610:26 amSTL - MDT
2 stops8h 24mAmerican Airlines
Mon 8/195:40 pmMDT - STL
1 stop4h 27mAmerican Airlines
Deal found 2/19$491
Tue 4/168:00 amSTL - MDT
2 stops11h 47mAmerican Airlines
Mon 4/225:44 amMDT - STL
2 stops10h 47mAmerican Airlines
Deal found 2/18$498
Fri 8/1610:26 amSTL - MDT
2 stops8h 24mAmerican Airlines
Mon 8/198:30 amMDT - STL
2 stops9h 47mAmerican Airlines
Deal found 2/19$501
Mon 6/174:38 pmSTL - MDT
1 stop4h 07mAmerican Airlines
Fri 6/216:48 amMDT - STL
1 stop6h 02mAmerican Airlines
Deal found 2/20$522
Mon 6/34:20 pmSTL - MDT
1 stop4h 43mAmerican Airlines
Mon 6/106:20 pmMDT - STL
1 stop4h 15mAmerican Airlines
Deal found 2/19$595
Mon 6/172:38 pmSTL - MDT
1 stop6h 13mAmerican Airlines
Fri 6/218:30 amMDT - STL
2 stops8h 23mAmerican Airlines
Deal found 2/20$653
Tue 3/1211:00 amSTL - MDT
2 stops8h 21mAmerican Airlines
Sat 3/237:51 amMDT - STL
2 stops7h 54mAmerican Airlines
Deal found 2/20$846

Cheap United Airlines flights from St. Louis to Harrisburg

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Harrisburg. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 21, 2024.
Browse through some of the cheapest United Airlines flights traveling from St. Louis to Harrisburg. Check back soon if you're not seeing flights that suit your needs.
Tue 3/198:25 amSTL - MDT
1 stop7h 14mUnited Airlines
Tue 3/266:20 amMDT - STL
1 stop5h 17mUnited Airlines
Deal found 2/20$318
Tue 4/166:00 amSTL - MDT
2 stops12h 44mUnited Airlines
Mon 4/226:14 pmMDT - STL
1 stop5h 01mUnited Airlines
Deal found 2/18$426
Sat 3/211:37 amSTL - MDT
1 stop4h 14mUnited Airlines
Wed 3/610:46 amMDT - STL
1 stop5h 48mUnited Airlines
Deal found 2/18$453
Sun 7/711:45 amSTL - MDT
1 stop4h 09mUnited Airlines
Thu 7/116:35 amMDT - STL
1 stop8h 43mUnited Airlines
Deal found 2/19$626

Cheap St. Louis to Harrisburg flights in February & March 2024

Find cheap flight options from St. Louis to Harrisburg specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,394,020 searches. Prices were last updated on February 21, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Harrisburg in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 3/198:25 amSTL - MDT
1 stop7h 14mUnited Airlines
Tue 3/266:20 amMDT - STL
1 stop5h 17mUnited Airlines
Deal found 2/20$318
Sat 3/26:00 amSTL - MDT
1 stop6h 20mDelta
Wed 3/66:29 pmMDT - STL
1 stop5h 03mDelta
Deal found 2/19$404
Sat 3/211:37 amSTL - MDT
1 stop4h 14mUnited Airlines
Wed 3/610:46 amMDT - STL
1 stop5h 48mUnited Airlines
Deal found 2/18$453
Sat 3/27:20 amSTL - MDT
2 stops9h 21mDelta
Wed 3/66:29 pmMDT - STL
1 stop5h 03mDelta
Deal found 2/19$580
Sat 3/27:20 amSTL - MDT
2 stops9h 21mDelta
Wed 3/66:29 pmMDT - STL
1 stop5h 03mDelta
Deal found 2/18$638

St. Louis to Harrisburg 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Harrisburg in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 21, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Harrisburg in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 4/165:15 amSTL - MDT
1 stop4h 57mAmerican Airlines
Mon 4/225:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Deal found 2/18$267
Fri 8/166:37 amSTL - MDT
1 stop3h 49mAmerican Airlines
Mon 8/195:40 pmMDT - STL
1 stop4h 27mAmerican Airlines
Deal found 2/19$311
Tue 3/198:25 amSTL - MDT
1 stop7h 14mUnited Airlines
Tue 3/266:20 amMDT - STL
1 stop5h 17mUnited Airlines
Deal found 2/20$318
Sat 3/26:00 amSTL - MDT
1 stop6h 20mDelta
Wed 3/66:29 pmMDT - STL
1 stop5h 03mDelta
Deal found 2/19$404
Tue 4/166:00 amSTL - MDT
2 stops12h 44mUnited Airlines
Mon 4/226:14 pmMDT - STL
1 stop5h 01mUnited Airlines
Deal found 2/18$426
Sat 3/211:37 amSTL - MDT
1 stop4h 14mUnited Airlines
Wed 3/610:46 amMDT - STL
1 stop5h 48mUnited Airlines
Deal found 2/18$453
Fri 8/1610:26 amSTL - MDT
2 stops8h 24mAmerican Airlines
Mon 8/195:40 pmMDT - STL
1 stop4h 27mAmerican Airlines
Deal found 2/19$491
Tue 4/168:00 amSTL - MDT
2 stops11h 47mAmerican Airlines
Mon 4/225:44 amMDT - STL
2 stops10h 47mAmerican Airlines
Deal found 2/18$498
Fri 8/1610:26 amSTL - MDT
2 stops8h 24mAmerican Airlines
Mon 8/198:30 amMDT - STL
2 stops9h 47mAmerican Airlines
Deal found 2/19$501

One-way flights to Harrisburg from St. Louis

Search for one-way flight options from St. Louis to Harrisburg. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 21, 2024.
Users in need of a one-way flight from St. Louis to Harrisburg can choose from these deals. Users can also find round-trip St. Louis to Harrisburg flights by using the search form above.
Fri 3/227:30 amSTL - MDT
2 stops6h 39mMultiple Airlines
Deal found 2/19$157
Tue 3/198:05 amSTL - MDT
1 stop12h 00mUnited Airlines
Deal found 2/20$190
Mon 2/266:25 pmSTL - MDT
1 stop21h 26mMultiple Airlines
Deal found 2/19$191
Mon 2/267:30 amSTL - MDT
2 stops7h 50mMultiple Airlines
Deal found 2/19$192
Fri 3/222:10 pmSTL - MDT
1 stop5h 11mAmerican Airlines
Deal found 2/19$193
Mon 2/268:55 pmSTL - MDT
3 stops33h 38mMultiple Airlines
Deal found 2/19$229
Fri 3/227:30 amSTL - MDT
3 stops26h 14mMultiple Airlines
Deal found 2/19$379

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 3,394,020 searches. Data last updated February 21, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$267 - $491

Route

Depart

Return

Price

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Tue 4/16

1 stop4h 57m

Harrisburg

Mon 4/22

1 stop8h 33m

$267

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Fri 8/16

1 stop3h 49m

Harrisburg

Mon 8/19

1 stop4h 27m

$311

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Tue 3/19

1 stop7h 14m

Harrisburg

Tue 3/26

1 stop5h 17m

$318

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Tue 3/12

1 stop24h 21m

Harrisburg

Sat 3/23

1 stop14h 43m

$358

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Sat 3/2

1 stop6h 20m

Harrisburg

Wed 3/6

1 stop5h 03m

$404

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Tue 4/16

2 stops12h 44m

Harrisburg

Mon 4/22

1 stop5h 01m

$426

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Sat 3/2

1 stop4h 14m

Harrisburg

Wed 3/6

1 stop5h 48m

$453

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Tue 3/12

2 stops10h 59m

Harrisburg

Sat 3/23

1 stop4h 29m

$478

Lambert-St LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Fri 8/16

2 stops8h 24m

Harrisburg

Mon 8/19

1 stop4h 27m

$491

Flights are sorted by cheapest first

Deals found on 2/18

When is the best time to book a flight from St. Louis to Harrisburg?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Harrisburg. Price data was last updated on January 28, 2024.
Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Harrisburg. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from St. Louis to Harrisburg?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Harrisburg. Price data was last updated on February 18, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Harrisburg flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Harrisburg by month

Plan your trip from St. Louis to Harrisburg by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Harrisburg is currently $219 while a round-trip flight costs $390. Price data was last updated on February 18, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Harrisburg (average of $376). Flying from St. Louis to Harrisburg in May is currently the most expensive (average of $508). 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.

January

$376

February

$385

March

$440

April

$478

May

$508

June

$505

July

$477

August

$419

September

$414

October

$397

November

$398

December

$398

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 February 21, 2024.
To help decide which airline to fly from St. Louis to Harrisburg, see what other customers have to say about American Airlines, United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.9
Good
3,045 reviews

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

7.9
Good
3,045 reviews
7.9
Good
3,045 reviews

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

7.5
Good
1,920 reviews
7.9
Good
3,045 reviews

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

7.2
Good
2,657 reviews
7.9
Good
3,045 reviews

Food

7.2

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Temperature and rainfall in Harrisburg by month

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

MDT

Temperature

30.2 - 75.2 °F

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.

Can I find flights from St. Louis to Harrisburg for under $300 on Cheapflights?

Yes, there are multiple flights from St. Louis to Harrisburg for under $300. The cheapest flight booked recently is on American Airlines for just $267, but on average you can expect to pay $539.

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

Flying on American Airlines is currently your cheapest option to Harrisburg, with prices starting at $267. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $318 and $404, respectively. American Airlines is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

What does STL to MDT mean?

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Harrisburg Airport flight would often be abbreviated as a STL to MDT flight.

Browse thousands of different options on Cheapflights for your next trip

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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 3,394,020 searches. Data last updated February 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$390FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$276Average$458FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$344Average$547FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from St. Louis to Harrisburg by cabin class

Find flights from St. Louis to Harrisburg, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Harrisburg?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to Harrisburg. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Harrisburg?

Cheapflights helps you find that perfect flight to Harrisburg from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to Harrisburg with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Harrisburg flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St. Louis to Harrisburg become cheaper?

Not ready to book yet? You can track prices for flights from St. Louis to Harrisburg on Cheapflights with our Price Alert feature and get notified when better prices are available.

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