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Cheap flights from Harrisburg to St. Louis from $160

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harrisburg to St. Louis departing on 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Harrisburg to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Harrisburg to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Harrisburg to St. Louis.

Cheap last minute flights

Planning a quick getaway from Harrisburg to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Harrisburg to St. Louis

Find recent round-trip train or bus tickets from Harrisburg to St. Louis.

All round-trip flight deals from Harrisburg to St. Louis

The cheapest plane tickets from Harrisburg to St. Louis found on KAYAK recently.
5:40 pm - 11:43 pmMDT-STL
7h 03m1 stop
5:20 pm - 4:40 pmSTL-MDT
22h 20m1 stop
$160Frontier
Find Deal
Tue, Feb 18 - Wed, Feb 19
7:54 pm - 11:56 pmMDT-STL
5h 02m1 stop
6:25 pm - 12:03 amSTL-MDT
4h 38m1 stop
$284American Airlines
Find Deal
Fri, Feb 21 - Fri, Feb 28
5:00 am - 8:30 amMDT-STL
4h 30m1 stop
6:15 am - 11:33 amSTL-MDT
4h 18m1 stop
$304American Airlines
Find Deal
Thu, May 1 - Sun, May 4
6:10 am - 12:12 pmMDT-STL
7h 02m1 stop
1:05 pm - 9:24 pmSTL-MDT
7h 19m1 stop
$319United Airlines
Find Deal
Thu, Mar 13 - Wed, Mar 26
6:30 am - 12:16 pmMDT-STL
6h 46m1 stop
2:55 pm - 9:13 pmSTL-MDT
5h 18m1 stop
$329United Airlines
Find Deal
Thu, Feb 6 - Mon, Feb 10
6:10 am - 12:12 pmMDT-STL
7h 02m1 stop
1:05 pm - 9:24 pmSTL-MDT
7h 19m1 stop
$333United Airlines
Find Deal
Fri, Mar 7 - Thu, Mar 13
8:53 pm - 11:45 amMDT-STL
39h 52m3 stops
9:50 am - 6:43 pmSTL-MDT
7h 53m2 stops
Fri, Feb 21 - Fri, Feb 28
6:05 am - 1:08 pmMDT-STL
8h 03m2 stops
4:45 pm - 11:48 pmSTL-MDT
6h 03m1 stop
$396Delta
Find Deal
Wed, Mar 19 - Mon, Mar 24
7:37 pm - 2:42 pmMDT-STL
20h 05m2 stops
4:00 pm - 6:47 pmSTL-MDT
25h 47m3 stops
Mon, Feb 17 - Thu, Feb 20
5:00 pm - 9:49 pmMDT-STL
5h 49m1 stop
11:50 am - 11:42 pmSTL-MDT
10h 52m2 stops
$449Delta
Find Deal
Fri, Feb 21 - Fri, Feb 28
7:41 am - 4:21 pmMDT-STL
9h 40m1 stop
$193American Airlines
Find Deal
Wed, Mar 5
1:00 pm - 9:49 pmMDT-STL
9h 49m2 stops
$225Delta
Find Deal
Wed, Mar 5
6:27 am - 1:00 pmMDT-STL
7h 33m1 stop
$371American Airlines
Find Deal
Mon, Feb 3
5:00 pm - 11:09 pmMDT-STL
7h 09m2 stops
$376Delta
Find Deal
Mon, Feb 3
6:06 am - 10:24 amMDT-STL
5h 18m1 stop
8:15 am - 1:32 pmSTL-MDT
4h 17m1 stop
$909United Airlines
Find Deal
Sun, Jan 26 - Tue, Jan 28
6:27 am - 1:00 pmMDT-STL
7h 33m1 stop
7:18 am - 3:49 pmSTL-MDT
7h 31m2 stops
$1,122American Airlines
Find Deal
Sun, Jan 26 - Tue, Jan 28
6:06 am - 3:38 pmMDT-STL
10h 32m2 stops
9:44 am - 6:51 pmSTL-MDT
8h 07m2 stops
$1,476United Airlines
Find Deal
Sun, Jan 26 - Tue, Jan 28

American Airlines flights from Harrisburg to St. Louis

Our best American Airlines deals on Harrisburg to St. Louis flight tickets
American Airlines
Feb 21
MDT7:54 pmHarrisburg
5h 02m
1 stop
STL11:56 pmLambert-St Louis
Feb 28
STL6:25 pmLambert-St Louis
4h 38m
1 stop
MDT12:03 amHarrisburg
American Airlines
May 1
MDT5:00 amHarrisburg
4h 30m
1 stop
STL8:30 amLambert-St Louis
May 4
STL6:15 amLambert-St Louis
4h 18m
1 stop
MDT11:33 amHarrisburg
American Airlines
Mar 19
MDT6:16 amHarrisburg
7h 44m
1 stop
STL1:00 pmLambert-St Louis
Mar 24
STL5:55 amLambert-St Louis
4h 33m
1 stop
MDT11:28 amHarrisburg

United Airlines flights from Harrisburg to St. Louis

Our best United Airlines deals on Harrisburg to St. Louis flight tickets
United Airlines
Mar 13
MDT6:10 amHarrisburg
7h 02m
1 stop
STL12:12 pmLambert-St Louis
Mar 26
STL1:05 pmLambert-St Louis
7h 19m
1 stop
MDT9:24 pmHarrisburg
United Airlines
Feb 6
MDT6:30 amHarrisburg
6h 46m
1 stop
STL12:16 pmLambert-St Louis
Feb 10
STL2:55 pmLambert-St Louis
5h 18m
1 stop
MDT9:13 pmHarrisburg
United Airlines
Mar 7
MDT6:10 amHarrisburg
7h 02m
1 stop
STL12:12 pmLambert-St Louis
Mar 13
STL1:05 pmLambert-St Louis
7h 19m
1 stop
MDT9:24 pmHarrisburg

See travel insights to St. Louis from

How to get the cheapest flight ticket from Harrisburg to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, October is the cheapest month to fly from Harrisburg to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $285. The month of May is another great option to travel to St. Louis, with average flight prices from Harrisburg averaging around $314.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $318. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $762. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Harrisburg at noon is the least expensive time of day to depart. momondo users have found prices as low as $325 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $389 per ticket.

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

You are more likely to see cheaper flights to St. Louis from Harrisburg when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $345 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Harrisburg for as low as $268 on momondo.

How have Harrisburg to St. Louis flight prices changed over time?


When to book flights from Harrisburg to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Harrisburg to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harrisburg to St. Louis (MDT to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harrisburg to St. Louis

Best Price Found

$193

Fastest flight time

4h 08m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Harrisburg in the past 72 hours is $193. The best round-trip flight deal from Harrisburg to St. Louis found on momondo in the last 72 hours is $160.
The fastest flight from Harrisburg to St. Louis takes 4h 08m
There are no direct flights from Harrisburg to St. Louis. Popular non-direct route for this connection is Harrisburg Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is Harrisburg to Lambert-St Louis by plane?

    There are 718.1 mi between Harrisburg and Lambert-St Louis. Typically, this will take 4h 08m by plane in normal conditions.

  • When did momondo last update prices for flights from Harrisburg Airport to Lambert-St Louis Airport?

    Prices for flights from Harrisburg Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Harrisburg Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Harrisburg Airport to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Harrisburg Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Harrisburg to St. Louis?


Best airlines flying from Harrisburg to St. Louis

Compare and see reviews for airlines that fly from Harrisburg to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $238Free CancellationRating
8.0
8,508 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $251Free CancellationRating
7.4
8,971 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Collinsville
Florissant
Maryland Heights
Hermann
Fairview Heights
Farmington
O'Fallon
Fenton
Alton
Wentzville
St. Peters
Eureka
Festus
Clayton
Edwardsville
Glencoe
Litchfield
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Harrisburg to St. Louis?

Finding the right flight to St. Louis from Harrisburg is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Harrisburg to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Harrisburg to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Harrisburg to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Harrisburg to St. Louis.

I’m not ready to book a flight from Harrisburg to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from Harrisburg are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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