Cheap flights from Harrisburg to St. Louis (MDT - STL) from $113

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 5/7. 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.
MDT — STL
Mar 2 — Mar 91

The best prices from Harrisburg to Lambert-St Louis are usually found in February or January, booked 45 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Harrisburg to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to St. Louis (STL). 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 26, 2024.

Popular in

July

Cheapest in

February

Round-trip from

$323

One-way from

$276
High demand for flights, 30% potential price rise
Best time to find cheap flights, 34% potential price drop
From Harrisburg to Lambert-St Louis
One-way flight from Harrisburg to Lambert-St Louis

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

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 37% 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 46 days in advance, which can save you up to 20% on flights from Harrisburg to St. Louis compared to booking the week you need them. Waiting 46 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 $287. For sooner than that we have options available in the next 3 days from $596.

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

February is one of the best times of the year to fly to St. Louis from Harrisburg. Prices for February average $423 per person but you can even find prices for as low as $203. The most expensive prices can be found in the month of July. Opting for a February flight can save you 43% on your journey compared to booking in July

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

Unlike at noon, when flights are generally more expensive, you can save up to 29% on flights from Harrisburg to St. Louis by exploring options for tickets in the evening.

Cheap American Airlines flights from Harrisburg to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Harrisburg and St. Louis. 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 3,409,476 searches. Data last updated February 26, 2024.
Peruse some of the lowest-priced American Airlines flights we've found from Harrisburg to St. Louis. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 4/305:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Sat 5/45:15 amSTL - MDT
1 stop5h 06mAmerican Airlines
Deal found 2/24$226
Mon 4/225:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Mon 4/294:42 pmSTL - MDT
1 stop6h 26mAmerican Airlines
Deal found 2/24$311
Mon 4/84:50 pmMDT - STL
1 stop6h 52mAmerican Airlines
Sat 4/205:15 amSTL - MDT
1 stop5h 06mAmerican Airlines
Deal found 2/26$341
Thu 3/712:01 pmMDT - STL
1 stop5h 27mAmerican Airlines
Sun 3/106:50 amSTL - MDT
1 stop7h 03mAmerican Airlines
Deal found 2/26$479
Tue 5/285:44 amMDT - STL
1 stop8h 25mAmerican Airlines
Fri 5/316:40 amSTL - MDT
1 stop6h 55mAmerican Airlines
Deal found 2/24$508
Tue 5/285:44 amMDT - STL
2 stops13h 24mAmerican Airlines
Fri 5/314:20 pmSTL - MDT
1 stop6h 49mAmerican Airlines
Deal found 2/24$563
Thu 3/75:13 amMDT - STL
2 stops9h 24mAmerican Airlines
Sun 3/106:50 amSTL - MDT
1 stop7h 03mAmerican Airlines
Deal found 2/26$583
Tue 5/285:44 amMDT - STL
2 stops13h 24mAmerican Airlines
Fri 5/3111:09 amSTL - MDT
2 stops8h 10mAmerican Airlines
Deal found 2/24$651
Sun 6/95:42 amMDT - STL
2 stops9h 34mAmerican Airlines
Sun 6/166:58 pmSTL - MDT
1 stop4h 07mAmerican Airlines
Deal found 2/25$701

Cheap United Airlines flights from Harrisburg to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Harrisburg and St. Louis. 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 3,409,476 searches. Data last updated February 26, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from Harrisburg to St. Louis. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Mon 4/226:14 pmMDT - STL
1 stop5h 01mUnited Airlines
Mon 4/295:25 pmSTL - MDT
2 stops25h 19mUnited Airlines
Deal found 2/24$382
Tue 4/306:14 pmMDT - STL
2 stops22h 32mUnited Airlines
Sat 5/45:25 pmSTL - MDT
1 stop26h 44mUnited Airlines
Deal found 2/24$404
Sun 3/106:20 amMDT - STL
1 stop5h 17mUnited Airlines
Wed 3/1310:20 amSTL - MDT
1 stop9h 45mUnited Airlines
Deal found 2/25$478
Mon 4/226:14 pmMDT - STL
2 stops16h 45mUnited Airlines
Mon 4/295:25 pmSTL - MDT
2 stops25h 19mUnited Airlines
Deal found 2/24$480
Sun 6/96:45 amMDT - STL
1 stop8h 31mUnited Airlines
Sun 6/166:08 amSTL - MDT
1 stop6h 19mUnited Airlines
Deal found 2/25$570
Mon 7/155:51 pmMDT - STL
1 stop21h 27mUnited Airlines
Mon 7/225:18 pmSTL - MDT
2 stops24h 10mUnited Airlines
Deal found 2/25$688

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

Find cheap flight options from Harrisburg to St. Louis specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,409,476 searches. Prices were last updated on February 26, 2024.
The lowest fares we've come across on flights traveling from Harrisburg to St. Louis in February and March 2024. Check back soon for alternative fares.
Mon 2/268:33 amMDT - STL
1 stop24h 14mFrontier
Mon 3/47:27 pmSTL - MDT
1 stop20h 24mFrontier
Deal found 2/25$298
Tue 2/275:41 pmMDT - STL
1 stop15h 06mFrontier
Thu 3/78:24 pmSTL - MDT
1 stop11h 16mFrontier
Deal found 2/26$338
Mon 2/265:10 pmMDT - STL
2 stops23h 20mMultiple Airlines
Mon 3/46:25 pmSTL - MDT
1 stop21h 26mMultiple Airlines
Deal found 2/25$398
Sun 3/106:20 amMDT - STL
1 stop5h 17mUnited Airlines
Wed 3/1310:20 amSTL - MDT
1 stop9h 45mUnited Airlines
Deal found 2/25$478
Thu 3/712:01 pmMDT - STL
1 stop5h 27mAmerican Airlines
Sun 3/106:50 amSTL - MDT
1 stop7h 03mAmerican Airlines
Deal found 2/26$479
Thu 3/75:13 amMDT - STL
2 stops9h 24mAmerican Airlines
Sun 3/106:50 amSTL - MDT
1 stop7h 03mAmerican Airlines
Deal found 2/26$583
Tue 2/275:12 amMDT - STL
2 stops10h 18mAmerican Airlines
Thu 3/75:19 amSTL - MDT
1 stop4h 43mAmerican Airlines
Deal found 2/26$591
Tue 2/275:12 amMDT - STL
2 stops11h 27mAmerican Airlines
Thu 3/711:58 amSTL - MDT
2 stops7h 23mAmerican Airlines
Deal found 2/26$598
Thu 3/75:13 amMDT - STL
2 stops9h 24mAmerican Airlines
Sun 3/1011:53 amSTL - MDT
2 stops7h 28mAmerican Airlines
Deal found 2/26$728

Harrisburg to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Harrisburg and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
The lowest fares we've come across on flights traveling from Harrisburg to St. Louis in February and March 2024. Check back soon for alternative fares.
Mon 4/19:51 amMDT - STL
1 stop23h 30mFrontier
Thu 4/48:24 pmSTL - MDT
1 stop11h 17mFrontier
Deal found 2/25$219
Tue 4/305:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Sat 5/45:15 amSTL - MDT
1 stop5h 06mAmerican Airlines
Deal found 2/24$226
Tue 4/305:59 pmMDT - STL
1 stop5h 01mDelta
Sat 5/411:45 amSTL - MDT
1 stop4h 53mDelta
Deal found 2/25$243
Tue 9/36:05 pmMDT - STL
1 stop6h 34mDelta
Tue 9/1711:51 amSTL - MDT
1 stop4h 17mDelta
Deal found 2/24$273
Mon 2/268:33 amMDT - STL
1 stop24h 14mFrontier
Mon 3/47:27 pmSTL - MDT
1 stop20h 24mFrontier
Deal found 2/25$298
Mon 4/225:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Mon 4/294:42 pmSTL - MDT
1 stop6h 26mAmerican Airlines
Deal found 2/24$311
Tue 2/275:41 pmMDT - STL
1 stop15h 06mFrontier
Thu 3/78:24 pmSTL - MDT
1 stop11h 16mFrontier
Deal found 2/26$338
Mon 4/84:50 pmMDT - STL
1 stop6h 52mAmerican Airlines
Sat 4/205:15 amSTL - MDT
1 stop5h 06mAmerican Airlines
Deal found 2/26$341
Mon 4/226:14 pmMDT - STL
1 stop5h 01mUnited Airlines
Mon 4/295:25 pmSTL - MDT
2 stops25h 19mUnited Airlines
Deal found 2/24$382

Harrisburg to St. Louis flights leaving soon

Find last-minute flight options from Harrisburg to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
Have a look at some of the last-minute flights available departing from Harrisburg to St. Louis. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 3/712:01 pmMDT - STL
1 stop5h 27mAmerican Airlines
Sun 3/106:50 amSTL - MDT
1 stop7h 03mAmerican Airlines
Deal found 2/26$479
Thu 3/75:13 amMDT - STL
2 stops9h 24mAmerican Airlines
Sun 3/106:50 amSTL - MDT
1 stop7h 03mAmerican Airlines
Deal found 2/26$583
Thu 3/75:13 amMDT - STL
2 stops9h 24mAmerican Airlines
Sun 3/1011:53 amSTL - MDT
2 stops7h 28mAmerican Airlines
Deal found 2/26$728

One-way flights to St. Louis from Harrisburg

Search for one-way flight options from Harrisburg to St. Louis. 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 3,409,476 searches. Data last updated February 26, 2024.
Some of the best available deals we've found on one-way flights from Harrisburg to St. Louis. Users needing a return flight from Harrisburg to St. Louis should utilize the search form above.
Tue 5/78:02 pmMDT - STL
1 stop4h 20mAmerican Airlines
Deal found 2/26$113
Sat 4/1312:02 pmMDT - STL
1 stop7h 27mAmerican Airlines
Deal found 2/26$114
Sat 4/136:14 pmMDT - STL
2 stops28h 38mUnited Airlines
Deal found 2/26$271
Sat 4/136:55 pmMDT - STL
3 stops21h 35mMultiple Airlines
Deal found 2/26$276
Thu 3/711:51 amMDT - STL
1 stop4h 43mAmerican Airlines
Deal found 2/26$288
Thu 3/75:13 amMDT - STL
2 stops9h 24mAmerican Airlines
Deal found 2/26$294
Thu 3/76:20 amMDT - STL
3 stops16h 51mUnited Airlines
Deal found 2/26$1,194

Find flights from Harrisburg to St. Louis within your budget

Customize your flight search to find flights from Harrisburg to St. Louis 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 3,409,476 searches. Data last updated February 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$219 - $478

Route

Depart

Return

Price

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Mon 4/1

1 stop23h 30m

Lambert-St Louis

Thu 4/4

1 stop11h 17m

$219

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Tue 4/30

1 stop8h 33m

Lambert-St Louis

Sat 5/4

1 stop5h 06m

$226

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Tue 4/30

1 stop5h 01m

Lambert-St Louis

Sat 5/4

1 stop4h 53m

$243

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Mon 4/22

1 stop8h 33m

Lambert-St Louis

Mon 4/29

1 stop6h 26m

$311

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Mon 4/8

1 stop6h 52m

Lambert-St Louis

Sat 4/20

1 stop5h 06m

$341

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Mon 4/22

1 stop5h 01m

Lambert-St Louis

Mon 4/29

2 stops25h 19m

$382

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Tue 4/30

1 stop5h 01m

Lambert-St Louis

Sat 5/4

2 stops11h 13m

$391

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Tue 4/30

2 stops22h 32m

Lambert-St Louis

Sat 5/4

1 stop26h 44m

$404

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Sun 3/10

1 stop5h 17m

Lambert-St Louis

Wed 3/13

1 stop9h 45m

$478

Flights are sorted by cheapest first

Deals found on 2/25

When is the best time to 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 January 28, 2024.
Booking 45 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.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Harrisburg to St. Louis. Price data was last updated on February 18, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Harrisburg to St. Louis flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday 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 St. Louis by month

Plan your trip from Harrisburg to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Harrisburg to St. Louis is currently $364 while a round-trip flight costs $333. Price data was last updated on February 18, 2024.

Currently, October is the cheapest month in which you can book a flight from Harrisburg to St. Louis (average of $323). Flying from Harrisburg to St. Louis in June is currently the most expensive (average of $389). 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

$326

February

$330

March

$346

April

$361

May

$361

June

$389

July

$383

August

$338

September

$324

October

$323

November

$335

December

$323

Temperature and rainfall in St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated February 26, 2024.
See what other customers who have flown with American Airlines, United 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.
8.1
Very good
11,853 reviews

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Crew

8.6

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very good
11,853 reviews
8.1
Very good
11,853 reviews

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Crew

8.6

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

7.4
Good
11,829 reviews
8.1
Very good
11,853 reviews

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Crew

8.6

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
15,591 reviews
8.1
Very good
11,853 reviews

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Crew

8.6

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

6.4
Okay
4,483 reviews
8.1
Very good
11,853 reviews

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Crew

8.6

Food

7.5

Reviews

1 / 10

It was a good experience other than a short delay.

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.

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

Yes, there are multiple flights from Harrisburg to St. Louis for under $300. The cheapest flight booked recently is on Frontier for just $219, but on average you can expect to pay $472.

Are there last-minute flights available from Harrisburg to St. Louis for under $500?

There are currently 3+ open flights from Harrisburg to St. Louis within the next 7 days for less than $500.

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

Frontier, at $219, 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 48% below the average price you’ll pay for this route.

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

What does MDT to STL mean?

Great question - MDT to STL just means Harrisburg Airport to Lambert-St Louis Airport. Now you’ll know what these unique codes when you look for flights!

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.

Top 3 airlines flying from Harrisburg to St. Louis

Discover the top 3 airlines that operate flights from Harrisburg to St. Louis. 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 3,409,476 searches. Data last updated February 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$245Average$448FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$256Average$433FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$285Average$459FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from Harrisburg to St. Louis by cabin class

Find flights from Harrisburg to St. Louis, 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 Harrisburg to St. Louis?

Cheapflights makes it easy to find Harrisburg to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to St. Louis from Harrisburg 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 Harrisburg to St. Louis with no change fees?

Yes, we can. To see specific flights from Harrisburg to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Harrisburg to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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