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Cheap flights from St. Louis to Harrisburg from $148

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Harrisburg departing on 1/9. 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 St. Louis to Harrisburg

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Harrisburg 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 St. Louis to Harrisburg.

Cheap last minute flights

Planning a quick getaway from St. Louis to Harrisburg? 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 Harrisburg, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Harrisburg

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

All round-trip flight deals to Harrisburg

The cheapest plane tickets to Harrisburg found on KAYAK recently.
5:05 pm - 8:28 amSTL-MDT
14h 23m1 stop
9:32 am - 11:31 pmMDT-STL
14h 59m1 stop
$148Frontier
Find Deal
Thu, Jan 9 - Fri, Jan 17
1:02 pm - 9:13 pmSTL-MDT
7h 11m1 stop
6:30 am - 10:54 amMDT-STL
5h 24m1 stop
$318United Airlines
Find Deal
Thu, Jan 9 - Sat, Jan 11
6:30 am - 5:13 pmSTL-MDT
9h 43m2 stops
5:00 pm - 9:49 pmMDT-STL
5h 49m1 stop
$328Delta
Find Deal
Thu, Jan 9 - Fri, Jan 17
6:30 am - 5:13 pmSTL-MDT
9h 43m2 stops
5:00 pm - 11:14 pmMDT-STL
7h 14m2 stops
$333Delta
Find Deal
Thu, Jan 9 - Fri, Jan 17
5:45 pm - 12:59 pmSTL-MDT
18h 14m1 stop
8:35 pm - 11:40 pmMDT-STL
28h 05m1 stop
$376Frontier
Find Deal
Mon, Dec 30 - Thu, Jan 2
3:30 pm - 9:24 pmSTL-MDT
4h 54m1 stop
6:10 am - 12:12 pmMDT-STL
7h 02m1 stop
$438United Airlines
Find Deal
Mon, Mar 10 - Thu, Mar 13
1:05 pm - 7:20 pmSTL-MDT
5h 15m1 stop
5:25 pm - 9:45 pmMDT-STL
5h 20m1 stop
$443United Airlines
Find Deal
Thu, Jan 2 - Mon, Jan 6
5:30 pm - 11:02 pmSTL-MDT
4h 32m1 stop
8:00 pm - 10:47 amMDT-STL
15h 47m2 stops
$456United Airlines
Find Deal
Thu, Jan 2 - Mon, Jan 6
3:10 pm - 10:56 pmSTL-MDT
6h 46m1 stop
6:30 am - 10:47 amMDT-STL
5h 17m1 stop
$489United Airlines
Find Deal
Wed, Jan 1 - Sun, Jan 5
8:15 am - 1:32 pmSTL-MDT
4h 17m1 stop
6:30 am - 2:14 pmMDT-STL
8h 44m1 stop
$501United Airlines
Find Deal
Mon, Jan 13 - Wed, Jan 15
STL-MDT
731 mimulti-stop
Multiple Airlines
Find Deal
5:58 pm - 11:55 pmSTL-MDT
4h 57m1 stop
6:27 pm - 10:19 pmMDT-STL
4h 52m1 stop
$323American Airlines
Find Deal
Mon, Dec 23 - Fri, Dec 27
6:25 am - 1:52 pmSTL-MDT
6h 27m2 stops
6:30 am - 10:47 amMDT-STL
5h 17m1 stop
$823United Airlines
Find Deal
Mon, Dec 23 - Fri, Dec 27
9:50 am - 8:39 pmSTL-MDT
9h 49m2 stops
9:29 pm - 5:02 pmMDT-STL
20h 33m2 stops
$1,105
Find Deal
Mon, Dec 23 - Fri, Dec 27

United Airlines flights from St. Louis to Harrisburg

Our best United Airlines deals on St. Louis to Harrisburg flight tickets
United Airlines
Jan 9
STL1:02 pmLambert-St Louis
7h 11m
1 stop
MDT9:13 pmHarrisburg
Jan 11
MDT6:30 amHarrisburg
5h 24m
1 stop
STL10:54 amLambert-St Louis
United Airlines
Mar 10
STL3:30 pmLambert-St Louis
4h 54m
1 stop
MDT9:24 pmHarrisburg
Mar 13
MDT6:10 amHarrisburg
7h 02m
1 stop
STL12:12 pmLambert-St Louis
United Airlines
Jan 2
STL1:05 pmLambert-St Louis
5h 15m
1 stop
MDT7:20 pmHarrisburg
Jan 6
MDT5:25 pmHarrisburg
5h 20m
1 stop
STL9:45 pmLambert-St Louis

Frontier flights from St. Louis to Harrisburg

Our best Frontier deals on St. Louis to Harrisburg flight tickets
Frontier
Jan 9
STL5:05 pmLambert-St Louis
14h 23m
1 stop
MDT8:28 amHarrisburg
Jan 17
MDT9:32 amHarrisburg
14h 59m
1 stop
STL11:31 pmLambert-St Louis
Frontier
Dec 30
STL5:45 pmLambert-St Louis
18h 14m
1 stop
MDT12:59 pmHarrisburg
Jan 2
MDT8:35 pmHarrisburg
28h 05m
1 stop
STL11:40 pmLambert-St Louis

See travel insights to Harrisburg from

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

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 typical price of a round-trip flight between St. Louis and Harrisburg?

What is the cheapest month to fly to Harrisburg?

The month of February is, on average, the cheapest month to fly to Harrisburg from St. Louis, with most prices found around $265. If you aren’t able to travel to Harrisburg during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $285.

What is the cheapest day to depart on your flight to Harrisburg?

The cheapest day to depart from St. Louis to Harrisburg is on a Thursday. Travelers who choose to depart for Harrisburg on a Thursday will often find tickets for as low as $298. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $413.

What is the cheapest time of day to depart on your flight to Harrisburg?

Our data shows that the cheapest St. Louis to Harrisburg flights are usually those with departure times in the morning. Our users have found flights to Harrisburg in the morning for as low as $316. Try not to purchase tickets at noon because they tend to be around $387. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

As of December 2024, prices for St. Louis to Harrisburg flights are approximately 94% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Harrisburg

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

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

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

Best Price Found

$148

Fastest flight time

4h 17m

Direct flights

None

Airports in Harrisburg

1 airport
The best flight deal from St. Louis to Harrisburg found on momondo in the last 72 hours is $148
The fastest flight from St. Louis to Harrisburg takes 4h 17m
There are no direct flights from St. Louis to Harrisburg. Popular non-direct route for this connection is Lambert-St Louis Airport - Harrisburg Airport.
There is 1 airport near Harrisburg: Harrisburg (MDT)

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

    The straight-line distance from Lambert-St Louis to Harrisburg is 718.1 mi. Typically, this will take 4h 17m by plane in normal conditions.

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

    Prices for flights from Lambert-St Louis Airport to Harrisburg Airport are updated daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Harrisburg Airport.

  • What documentation or ID do you need to fly to Harrisburg Airport?

    The travel and health documents you'll need for your trip to Harrisburg Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Harrisburg Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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


Best airlines flying from St. Louis to Harrisburg

Compare and see reviews for airlines that fly from St. Louis to Harrisburg with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $237Free CancellationRating
8.0
8,604 reviews
Search Delta flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $251Free CancellationRating
7.4
9,055 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Harrisburg. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Harrisburg from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential St. Louis to Harrisburg flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from St. Louis to Harrisburg now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Harrisburg and let you know when they change.


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