Cheap flights from Harrisburg to St. Louis (MDT - STL) from $206

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 7/25. 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 24 — Mar 311

The best prices from Harrisburg to Lambert-St Louis are usually found in February or January, booked 45 days in advance, depart on a Saturday or Wednesday 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 March 19, 2024.

Popular in

July

Cheapest in

February

Round-trip from

$323

One-way from

$206
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 Friday can be a cost-effective option. It’s possible to save up to 51% 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 30% on flights from Harrisburg to St. Louis by exploring options for tickets in the morning.

Cheap Delta flights from Harrisburg to St. Louis

Explore cheap flight options specifically provided by Delta 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 3,145,932 searches. Data last updated March 19, 2024.
Peruse some of the lowest-priced Delta 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.
Sat 8/246:20 amMDT - STL
1 stop4h 10mDelta
Wed 8/286:00 pmSTL - MDT
1 stop3h 41mDelta
Deal found 3/18$248
Sat 8/246:05 pmMDT - STL
1 stop6h 34mDelta
Wed 8/283:30 pmSTL - MDT
2 stops6h 11mDelta
Deal found 3/18$253
Sat 8/246:20 amMDT - STL
2 stops10h 37mDelta
Wed 8/283:30 pmSTL - MDT
2 stops6h 11mDelta
Deal found 3/17$258
Sat 8/2412:23 pmMDT - STL
2 stops9h 22mDelta
Wed 8/283:30 pmSTL - MDT
2 stops6h 11mDelta
Deal found 3/18$350
Fri 3/296:00 pmMDT - STL
1 stop5h 34mDelta
Wed 4/311:45 amSTL - MDT
2 stops10h 58mDelta
Deal found 3/18$383
Tue 5/216:02 pmMDT - STL
1 stop6h 38mDelta
Thu 5/236:00 amSTL - MDT
1 stop4h 34mDelta
Deal found 3/18$390
Tue 5/216:20 amMDT - STL
2 stops10h 37mDelta
Thu 5/236:00 amSTL - MDT
1 stop4h 34mDelta
Deal found 3/18$395
Tue 5/216:20 amMDT - STL
2 stops10h 37mDelta
Fri 5/246:10 pmSTL - MDT
1 stop3h 29mDelta
Deal found 3/18$453
Wed 4/106:00 amMDT - STL
2 stops8h 11mDelta
Thu 4/1111:45 amSTL - MDT
2 stops11h 12mDelta
Deal found 3/18$508

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 3,145,932 searches. Data last updated March 19, 2024.
To aid your search, here are some of the cheapest American 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.
Thu 4/255:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Sun 4/285:15 amSTL - MDT
1 stop4h 57mAmerican Airlines
Deal found 3/18$246
Wed 4/1011:57 amMDT - STL
1 stop7h 05mAmerican Airlines
Tue 4/307:10 amSTL - MDT
1 stop6h 59mAmerican Airlines
Deal found 3/18$265
Fri 3/295:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Wed 4/37:10 amSTL - MDT
1 stop5h 04mAmerican Airlines
Deal found 3/18$281
Thu 3/285:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Sun 3/319:12 amSTL - MDT
1 stop4h 35mAmerican Airlines
Deal found 3/18$306
Thu 3/285:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Mon 4/15:15 amSTL - MDT
1 stop4h 46mAmerican Airlines
Deal found 3/18$362
Fri 5/175:44 amMDT - STL
2 stops10h 48mAmerican Airlines
Sun 5/197:30 amSTL - MDT
1 stop6h 41mAmerican Airlines
Deal found 3/18$561
Thu 3/285:44 amMDT - STL
2 stops8h 56mAmerican Airlines
Sun 3/317:10 amSTL - MDT
1 stop5h 04mAmerican Airlines
Deal found 3/18$562
Thu 3/285:44 amMDT - STL
2 stops8h 56mAmerican Airlines
Sun 3/3111:53 amSTL - MDT
2 stops7h 28mAmerican Airlines
Deal found 3/18$569
Sun 3/315:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Sun 3/312:10 pmSTL - MDT
1 stop5h 11mAmerican Airlines
Deal found 3/18$572

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

Find cheap flight options from Harrisburg to St. Louis specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
The lowest fares we've come across on flights traveling from Harrisburg to St. Louis in March and April 2024. Check back soon for alternative fares.
Thu 4/255:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Sun 4/285:15 amSTL - MDT
1 stop4h 57mAmerican Airlines
Deal found 3/18$246
Wed 4/1011:57 amMDT - STL
1 stop7h 05mAmerican Airlines
Tue 4/307:10 amSTL - MDT
1 stop6h 59mAmerican Airlines
Deal found 3/18$265
Fri 3/295:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Wed 4/37:10 amSTL - MDT
1 stop5h 04mAmerican Airlines
Deal found 3/18$281
Thu 3/285:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Sun 3/319:12 amSTL - MDT
1 stop4h 35mAmerican Airlines
Deal found 3/18$306
Mon 4/158:30 amMDT - STL
1 stop23h 43mMultiple Airlines
Mon 4/227:30 amSTL - MDT
2 stops7h 13mMultiple Airlines
Deal found 3/18$320
Thu 3/285:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Mon 4/15:15 amSTL - MDT
1 stop4h 46mAmerican Airlines
Deal found 3/18$362
Fri 3/296:00 pmMDT - STL
1 stop5h 34mDelta
Wed 4/311:45 amSTL - MDT
2 stops10h 58mDelta
Deal found 3/18$383
Wed 4/106:18 amMDT - STL
1 stop4h 56mUnited Airlines
Tue 4/306:00 amSTL - MDT
2 stops12h 44mUnited Airlines
Deal found 3/18$386
Mon 4/154:33 pmMDT - STL
2 stops18h 11mMultiple Airlines
Mon 4/227:30 amSTL - MDT
2 stops7h 13mMultiple Airlines
Deal found 3/18$405

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 3,145,932 searches. Data last updated March 19, 2024.
The lowest fares we've come across on flights traveling from Harrisburg to St. Louis in March and April 2024. Check back soon for alternative fares.
Thu 4/255:44 amMDT - STL
1 stop8h 33mAmerican Airlines
Sun 4/285:15 amSTL - MDT
1 stop4h 57mAmerican Airlines
Deal found 3/18$246
Sat 8/246:20 amMDT - STL
1 stop4h 10mDelta
Wed 8/286:00 pmSTL - MDT
1 stop3h 41mDelta
Deal found 3/18$248
Sat 8/246:05 pmMDT - STL
1 stop6h 34mDelta
Wed 8/283:30 pmSTL - MDT
2 stops6h 11mDelta
Deal found 3/18$253
Sat 8/246:20 amMDT - STL
2 stops10h 37mDelta
Wed 8/283:30 pmSTL - MDT
2 stops6h 11mDelta
Deal found 3/17$258
Wed 4/1011:57 amMDT - STL
1 stop7h 05mAmerican Airlines
Tue 4/307:10 amSTL - MDT
1 stop6h 59mAmerican Airlines
Deal found 3/18$265
Fri 3/295:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Wed 4/37:10 amSTL - MDT
1 stop5h 04mAmerican Airlines
Deal found 3/18$281
Thu 3/285:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Sun 3/319:12 amSTL - MDT
1 stop4h 35mAmerican Airlines
Deal found 3/18$306
Mon 4/158:30 amMDT - STL
1 stop23h 43mMultiple Airlines
Mon 4/227:30 amSTL - MDT
2 stops7h 13mMultiple Airlines
Deal found 3/18$320
Sat 8/2412:23 pmMDT - STL
2 stops9h 22mDelta
Wed 8/283:30 pmSTL - MDT
2 stops6h 11mDelta
Deal found 3/18$350

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 3,145,932 searches. Data last updated March 19, 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.
Fri 3/295:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Wed 4/37:10 amSTL - MDT
1 stop5h 04mAmerican Airlines
Deal found 3/18$281
Thu 3/285:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Sun 3/319:12 amSTL - MDT
1 stop4h 35mAmerican Airlines
Deal found 3/18$306
Thu 3/285:44 amMDT - STL
1 stop6h 31mAmerican Airlines
Mon 4/15:15 amSTL - MDT
1 stop4h 46mAmerican Airlines
Deal found 3/18$362
Fri 3/296:00 pmMDT - STL
1 stop5h 34mDelta
Wed 4/311:45 amSTL - MDT
2 stops10h 58mDelta
Deal found 3/18$383
Thu 3/285:44 amMDT - STL
2 stops8h 56mAmerican Airlines
Sun 3/317:10 amSTL - MDT
1 stop5h 04mAmerican Airlines
Deal found 3/18$562
Thu 3/285:44 amMDT - STL
2 stops8h 56mAmerican Airlines
Sun 3/3111:53 amSTL - MDT
2 stops7h 28mAmerican Airlines
Deal found 3/18$569
Fri 3/295:44 amMDT - STL
2 stops10h 50mAmerican Airlines
Wed 4/39:17 amSTL - MDT
2 stops10h 04mAmerican Airlines
Deal found 3/18$657
Fri 3/294:41 pmMDT - STL
3 stops19h 02mMultiple Airlines
Wed 4/39:08 pmSTL - MDT
3 stops22h 27mMultiple Airlines
Deal found 3/18$864
Fri 3/294:41 pmMDT - STL
3 stops19h 02mMultiple Airlines
Wed 4/39:08 pmSTL - MDT
2 stops22h 27mMultiple Airlines
Deal found 3/18$883

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 3,145,932 searches. Data last updated March 19, 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.
Thu 7/256:58 pmMDT - STL
1 stop5h 56mAmerican Airlines
Deal found 3/19$206
Thu 7/255:57 amMDT - STL
2 stops9h 08mAmerican Airlines
Deal found 3/19$284

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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$246 - $405

Route

Depart

Return

Price

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Thu 4/25

1 stop8h 33m

Lambert-St Louis

Sun 4/28

1 stop4h 57m

$246

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Sat 8/24

1 stop4h 10m

Lambert-St Louis

Wed 8/28

1 stop3h 41m

$248

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Sat 8/24

1 stop6h 34m

Lambert-St Louis

Wed 8/28

2 stops6h 11m

$253

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Sat 8/24

2 stops10h 37m

Lambert-St Louis

Wed 8/28

2 stops6h 11m

$258

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Wed 4/10

1 stop7h 05m

Lambert-St Louis

Tue 4/30

1 stop6h 59m

$265

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Fri 3/29

1 stop6h 31m

Lambert-St Louis

Wed 4/3

1 stop5h 04m

$281

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Mon 4/15

1 stop23h 43m

Lambert-St Louis

Mon 4/22

2 stops7h 13m

$320

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Wed 4/10

1 stop4h 56m

Lambert-St Louis

Tue 4/30

2 stops12h 44m

$386

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Mon 4/15

2 stops18h 11m

Lambert-St Louis

Mon 4/22

2 stops7h 13m

$405

Flights are sorted by cheapest first

Deals found on 3/18

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 March 17, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Harrisburg to St. Louis flight should consider departing on Saturday 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 $245 while a round-trip flight costs $296. Price data was last updated on March 10, 2024.

Currently, September 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 $386). 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

$331

March

$358

April

$356

May

$358

June

$386

July

$382

August

$336

September

$323

October

$323

November

$336

December

$326

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 March 19, 2024.
See what other customers who have flown with Delta, American Airlines and United Airlines 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
11,551 reviews

Crew

8.6

Food

7.5

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very good
11,551 reviews
8.1
Very good
11,551 reviews

Crew

8.6

Food

7.5

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.4
Good
11,602 reviews
8.1
Very good
11,551 reviews

Crew

8.6

Food

7.5

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
15,312 reviews
8.1
Very good
11,551 reviews

Crew

8.6

Food

7.5

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Overall

8.1

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 American Airlines for just $246, but on average you can expect to pay $367.

  • Are there last-minute flights available from Harrisburg to St. Louis for under $300?

    There are currently 9+ open flights from Harrisburg to St. Louis within the next 7 days for less than $300.

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

    American Airlines, at $246, was found to be the cheapest airline from Harrisburg to St. Louis.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines is currently priced 41% 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!

See more FAQs

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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$246Average$414FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$252Average$421FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$286Average$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.

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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