Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Harrisburg to St. Louis from $188

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 1/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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 to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
1:33 pm - 11:27 pmMDT-STL
10h 54m1 stop
8:12 am - 6:37 pmSTL-MDT
9h 25m1 stop
$188Frontier
Find Deal
Sat, Jan 11 - Sun, Jan 12
7:42 pm - 11:59 pmMDT-STL
5h 17m1 stop
5:45 am - 12:23 pmSTL-MDT
5h 38m1 stop
$258American Airlines
Find Deal
Fri, Dec 6 - Sun, Dec 8
6:30 am - 10:47 amMDT-STL
5h 17m1 stop
5:30 pm - 10:56 pmSTL-MDT
4h 26m1 stop
$318United Airlines
Find Deal
Tue, Dec 24 - Thu, Dec 26
5:00 am - 8:51 amMDT-STL
4h 51m1 stop
5:45 am - 9:11 pmSTL-MDT
14h 26m1 stop
$357American Airlines
Find Deal
Sun, Feb 16 - Tue, Feb 18
6:30 am - 12:26 pmMDT-STL
6h 56m1 stop
5:30 pm - 10:56 pmSTL-MDT
4h 26m1 stop
$363United Airlines
Find Deal
Thu, Dec 26 - Sun, Dec 29
6:30 am - 12:26 pmMDT-STL
6h 56m1 stop
5:30 pm - 10:56 pmSTL-MDT
4h 26m1 stop
$394United Airlines
Find Deal
Fri, Dec 27 - Mon, Dec 30
4:57 pm - 11:43 pmMDT-STL
7h 46m2 stops
6:00 am - 11:41 amSTL-MDT
4h 41m1 stop
$436Delta
Find Deal
Fri, Dec 6 - Sun, Dec 8
1:50 pm - 9:43 pmMDT-STL
8h 53m2 stops
6:29 am - 5:04 pmSTL-MDT
9h 35m2 stops
$448Delta
Find Deal
Tue, Dec 24 - Thu, Dec 26
9:48 pm - 3:21 pmMDT-STL
18h 33m2 stops
4:26 pm - 8:58 pmSTL-MDT
27h 32m3 stops
Fri, Dec 6 - Sun, Dec 8
9:29 pm - 5:02 pmMDT-STL
20h 33m2 stops
9:50 am - 8:39 pmSTL-MDT
9h 49m2 stops
Fri, Dec 27 - Mon, Dec 30
7:41 pm - 12:01 amMDT-STL
5h 20m1 stop
$219American Airlines
Find Deal
Sat, Dec 28
6:27 am - 2:22 pmMDT-STL
8h 55m2 stops
$224American Airlines
Find Deal
Tue, Jan 7
3:00 pm - 8:23 pmMDT-STL
6h 23m1 stop
$254United Airlines
Find Deal
Sat, Jan 4
9:15 pm - 3:21 pmMDT-STL
19h 06m2 stops
Sat, Dec 28
6:00 am - 8:51 pmMDT-STL
15h 51m2 stops
$376United Airlines
Find Deal
Sat, Jan 4
6:30 am - 6:09 pmMDT-STL
36h 39m3 stops
$407United Airlines
Find Deal
Tue, Jan 7
7:00 am - 11:05 amMDT-STL
5h 05m1 stop
6:34 pm - 12:10 amSTL-MDT
4h 36m1 stop
$323American Airlines
Find Deal
Tue, Nov 26 - Fri, Nov 29
4:55 pm - 9:29 pmMDT-STL
5h 34m1 stop
6:00 am - 11:32 amSTL-MDT
4h 32m1 stop
$338Delta
Find Deal
Sat, Nov 23 - Mon, Nov 25
1:20 pm - 9:29 pmMDT-STL
9h 09m2 stops
5:34 pm - 11:58 pmSTL-MDT
5h 24m1 stop
$343Delta
Find Deal
Sat, Nov 23 - Mon, Nov 25
4:55 pm - 11:41 pmMDT-STL
7h 46m2 stops
7:15 am - 4:15 pmSTL-MDT
8h 00m2 stops
$348Delta
Find Deal
Sat, Nov 23 - Mon, Nov 25
7:00 am - 11:05 amMDT-STL
5h 05m1 stop
6:34 pm - 12:22 amSTL-MDT
4h 48m1 stop
$619American Airlines
Find Deal
Tue, Nov 26 - Sun, Dec 1
6:11 am - 4:29 pmMDT-STL
11h 18m2 stops
11:25 am - 4:15 pmSTL-MDT
3h 50m1 stop
$628Delta
Find Deal
Tue, Nov 26 - Fri, Nov 29
6:11 am - 12:04 pmMDT-STL
6h 53m2 stops
11:25 am - 9:09 pmSTL-MDT
8h 44m2 stops
$633Delta
Find Deal
Tue, Nov 26 - Fri, Nov 29
1:56 pm - 7:30 pmMDT-STL
6h 34m1 stop
5:45 am - 12:28 pmSTL-MDT
5h 43m1 stop
$698American Airlines
Find Deal
Tue, Nov 26 - Sun, Dec 1
6:11 am - 2:59 pmMDT-STL
9h 48m2 stops
6:00 pm - 10:48 pmSTL-MDT
3h 48m1 stop
$788Delta
Find Deal
Tue, Nov 26 - Sun, Dec 1
6:11 am - 12:04 pmMDT-STL
6h 53m2 stops
6:00 am - 11:32 amSTL-MDT
4h 32m1 stop
$968Delta
Find Deal
Tue, Nov 26 - Sun, Dec 1

United Airlines flights from Harrisburg to St. Louis

Our best United Airlines deals on Harrisburg to St. Louis flight tickets
United Airlines
Dec 24
MDT6:30 amHarrisburg
5h 17m
1 stop
STL10:47 amLambert-St Louis
Dec 26
STL5:30 pmLambert-St Louis
4h 26m
1 stop
MDT10:56 pmHarrisburg
United Airlines
Dec 26
MDT6:30 amHarrisburg
6h 56m
1 stop
STL12:26 pmLambert-St Louis
Dec 29
STL5:30 pmLambert-St Louis
4h 26m
1 stop
MDT10:56 pmHarrisburg
United Airlines
Dec 27
MDT6:30 amHarrisburg
6h 56m
1 stop
STL12:26 pmLambert-St Louis
Dec 30
STL5:30 pmLambert-St Louis
4h 26m
1 stop
MDT10:56 pmHarrisburg

Delta flights from Harrisburg to St. Louis

Our best Delta deals on Harrisburg to St. Louis flight tickets
Delta
Dec 6
MDT4:57 pmHarrisburg
7h 46m
2 stops
STL11:43 pmLambert-St Louis
Dec 8
STL6:00 amLambert-St Louis
4h 41m
1 stop
MDT11:41 amHarrisburg
Delta
Dec 24
MDT1:50 pmHarrisburg
8h 53m
2 stops
STL9:43 pmLambert-St Louis
Dec 26
STL6:29 amLambert-St Louis
9h 35m
2 stops
MDT5:04 pmHarrisburg
Delta
Dec 28
MDT6:10 amHarrisburg
11h 04m
2 stops
STL4:14 pmLambert-St Louis
Dec 31
STL11:46 amLambert-St Louis
10h 00m
2 stops
MDT10:46 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 December is another great option to travel to St. Louis, with average flight prices from Harrisburg averaging around $290.

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 $314. 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 in the morning is the least expensive time of day to depart. momondo users have found prices as low as $324 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $487 per ticket.

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

The best time to book a flight to St. Louis from Harrisburg is 23 days out, which is when prices tend to be around $357. In the past 72 hours, momondo users found flights from Harrisburg to St. Louis for as low as $237.

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

As of November 2024, prices for Harrisburg to St. Louis flights are approximately 149% more expensive when compared to flights at the same time last year.

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

$219

Fastest flight time

4h 51m

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 $219. The best round-trip flight deal from Harrisburg to St. Louis found on momondo in the last 72 hours is $188.
The fastest flight from Harrisburg to St. Louis takes 4h 51m
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 51m 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
8,755 reviews
Search Delta flights
United AirlinesPriceFrom $247Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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.


An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 11/26
Tue 12/3
Email me momondo's favorite deals

Find better results for your trip to the United States