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Cheap flights from the United States to St. Louis from $38

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to St. Louis departing on 1/28. 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 the United States to St. Louis

Cheap round-trip flights

Recommended round-trip deals departing in the coming months from the most popular airlines that fly to St. Louis.

Cheap one-way flights

Only flying one-way? Below are some of the best one-way flight deals to St. Louis found on KAYAK recently.

Cheap last minute flights

Leaving soon but still want a bargain? Check out these latest deals for last minute flights to St. Louis.

Cheap direct flights

The latest deals for direct flights to St. Louis so you can sit back and relax without the need for a layover.

Cheap bus & train deals to St. Louis

Find recent round-trip train or bus tickets from the United States to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
6:09 am - 2:43 pmMCO-STL
9h 34m1 stop
5:05 pm - 8:36 pmSTL-MCO
2h 31mnonstop
Thu, Jan 30 - Tue, Feb 4
9:44 pm - 11:27 pmMCO-STL
2h 43mnonstop
5:05 pm - 8:38 pmSTL-MCO
2h 33mnonstop
$67Frontier
Find Deal
Thu, Jan 9 - Sat, Jan 11
6:00 am - 4:37 pmSEA-STL
8h 37m1 stop
5:29 pm - 11:00 pmSTL-SEA
7h 31m1 stop
$196Delta
Find Deal
Sat, Feb 8 - Sat, Feb 15
8:50 am - 10:24 amIAD-STL
2h 34mnonstop
8:15 am - 11:33 amSTL-IAD
2h 18mnonstop
$197United Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29
9:30 am - 11:32 amLGA-STL
3h 02mnonstop
5:03 pm - 8:30 pmSTL-LGA
2h 27mnonstop
$199American Airlines
Find Deal
Tue, Jan 21 - Tue, Jan 21
6:00 am - 10:47 amBOS-STL
5h 47m1 stop
6:30 am - 2:30 pmSTL-BOS
7h 00m2 stops
$201United Airlines
Find Deal
Tue, Feb 4 - Wed, Feb 5
9:29 am - 2:07 pmLGA-STL
5h 38m1 stop
5:03 pm - 8:30 pmSTL-LGA
2h 27mnonstop
$202American Airlines
Find Deal
Tue, Jan 21 - Tue, Jan 21
6:55 am - 8:58 amLGA-STL
3h 03mnonstop
5:59 pm - 9:26 pmSTL-LGA
2h 27mnonstop
$203Delta
Find Deal
Thu, Jan 16 - Tue, Jan 21
7:15 am - 9:15 amLGA-STL
3h 00mnonstop
6:25 am - 9:50 amSTL-LGA
2h 25mnonstop
$208Southwest
Find Deal
Wed, Jan 15 - Wed, Jan 22
6:05 am - 8:05 amLGA-STL
3h 00mnonstop
8:10 pm - 11:25 pmSTL-LGA
2h 15mnonstop
$243Southwest
Find Deal
Sun, Feb 16 - Sun, Feb 16
6:09 am - 2:43 pmMCO-STL
9h 34m1 stop
$38Spirit Airlines
Find Deal
Tue, Jan 28
6:09 am - 2:43 pmMCO-STL
9h 34m1 stop
$42Spirit Airlines
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Thu, Jan 23
9:44 pm - 11:27 pmMCO-STL
2h 43mnonstop
$43Frontier
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Mon, Jan 13
10:00 pm - 11:49 pmMCO-STL
2h 49mnonstop
$44Frontier
Find Deal
Wed, Mar 26
6:15 am - 2:54 pmSEA-STL
6h 39m1 stop
$98Delta
Find Deal
Sat, Jan 25
8:50 am - 10:24 amIAD-STL
2h 34mnonstop
$99United Airlines
Find Deal
Tue, Jan 28
10:20 am - 12:27 pmLGA-STL
3h 07mnonstop
$100Delta
Find Deal
Sat, Feb 22
5:45 am - 12:16 pmBOS-STL
7h 31m2 stops
$103United Airlines
Find Deal
Tue, Feb 11
8:00 am - 2:52 pmJFK-STL
7h 52m1 stop
$109American Airlines
Find Deal
Tue, Feb 18
5:44 pm - 10:44 pmJFK-STL
6h 00m1 stop
$113American Airlines
Find Deal
Mon, Feb 24
9:45 pm - 11:28 pmMCO-STL
2h 43mnonstop
4:24 pm - 8:00 pmSTL-MCO
2h 36mnonstop
$212Frontier
Find Deal
Tue, Dec 31 - Sun, Jan 5
9:45 pm - 11:28 pmMCO-STL
2h 43mnonstop
6:49 pm - 11:20 pmSTL-MCO
27h 31m1 stop
$242Frontier
Find Deal
Tue, Dec 31 - Mon, Jan 6
9:54 am - 12:00 pmLGA-STL
3h 06mnonstop
7:00 am - 10:28 amSTL-LGA
2h 28mnonstop
$265Delta
Find Deal
Tue, Dec 31 - Sat, Jan 4
9:10 am - 11:09 amLGA-STL
2h 59mnonstop
6:30 am - 12:07 pmSTL-LGA
4h 37m1 stop
$275American Airlines
Find Deal
Tue, Dec 31 - Sat, Jan 4
1:55 pm - 3:54 pmLGA-STL
2h 59mnonstop
7:00 am - 10:28 amSTL-LGA
2h 28mnonstop
$280Delta
Find Deal
Sat, Dec 28 - Wed, Jan 1
7:00 am - 1:37 pmLGA-STL
7h 37m1 stop
6:30 am - 12:07 pmSTL-LGA
4h 37m1 stop
$284American Airlines
Find Deal
Tue, Dec 31 - Sat, Jan 4
12:55 pm - 7:57 pmEWR-STL
8h 02m1 stop
7:00 am - 10:38 amSTL-EWR
2h 38mnonstop
$378United Airlines
Find Deal
Tue, Dec 31 - Sat, Jan 4
7:15 am - 9:10 amLGA-STL
2h 55mnonstop
7:45 pm - 11:05 pmSTL-LGA
2h 20mnonstop
$378Southwest
Find Deal
Sun, Dec 29 - Tue, Dec 31
6:45 am - 8:40 amLGA-STL
2h 55mnonstop
7:45 pm - 11:05 pmSTL-LGA
2h 20mnonstop
$381Southwest
Find Deal
Sat, Dec 28 - Tue, Dec 31
6:14 pm - 8:11 pmEWR-STL
2h 57mnonstop
7:00 am - 10:38 amSTL-EWR
2h 38mnonstop
$411United Airlines
Find Deal
Mon, Dec 30 - Thu, Jan 2
9:44 pm - 11:27 pmMCO-STL
2h 43mnonstop
5:05 pm - 8:38 pmSTL-MCO
2h 33mnonstop
$67Frontier
Find Deal
Thu, Jan 9 - Sat, Jan 11
9:44 pm - 11:31 pmMCO-STL
2h 47mnonstop
5:20 pm - 8:51 pmSTL-MCO
2h 31mnonstop
$68Frontier
Find Deal
Tue, Feb 11 - Thu, Feb 20
8:50 am - 10:24 amIAD-STL
2h 34mnonstop
8:15 am - 11:33 amSTL-IAD
2h 18mnonstop
$197United Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29
9:30 am - 11:32 amLGA-STL
3h 02mnonstop
5:03 pm - 8:30 pmSTL-LGA
2h 27mnonstop
$199American Airlines
Find Deal
Tue, Jan 21 - Tue, Jan 21
10:25 am - 12:32 pmLGA-STL
3h 07mnonstop
7:20 am - 10:49 amSTL-LGA
2h 29mnonstop
$203American Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 19
6:55 am - 8:58 amLGA-STL
3h 03mnonstop
6:05 am - 9:33 amSTL-LGA
2h 28mnonstop
$207Delta
Find Deal
Wed, Jan 22 - Fri, Jan 24
9:32 pm - 11:30 pmEWR-STL
2h 58mnonstop
7:00 am - 10:39 amSTL-EWR
2h 39mnonstop
$207United Airlines
Find Deal
Thu, Jan 30 - Mon, Feb 3
6:55 am - 8:46 amLGA-STL
2h 51mnonstop
9:00 am - 12:28 pmSTL-LGA
2h 28mnonstop
$232Delta
Find Deal
Wed, Mar 26 - Sat, Apr 26
6:05 am - 8:05 amLGA-STL
3h 00mnonstop
8:10 pm - 11:25 pmSTL-LGA
2h 15mnonstop
$243Southwest
Find Deal
Sun, Feb 16 - Sun, Feb 16
7:15 am - 9:15 amLGA-STL
3h 00mnonstop
7:40 pm - 11:00 pmSTL-LGA
2h 20mnonstop
$290Southwest
Find Deal
Sun, Jan 12 - Mon, Jan 20

Frontier flights from United States to St. Louis

Our best Frontier deals on United States to St. Louis flight tickets
Frontier
Jan 9
MCO9:44 pmOrlando
2h 43m
STL11:27 pmLambert-St Louis
Jan 11
STL5:05 pmLambert-St Louis
2h 33m
MCO8:38 pmOrlando
Frontier
Mar 1
MCO9:56 pmOrlando
2h 47m
STL11:43 pmLambert-St Louis
Mar 5
STL5:20 pmLambert-St Louis
2h 31m
MCO8:51 pmOrlando
Frontier
Apr 2
MCO10:00 pmOrlando
2h 46m
STL11:46 pmLambert-St Louis
Apr 6
STL4:57 pmLambert-St Louis
2h 30m
MCO8:27 pmOrlando

Spirit Airlines flights from United States to St. Louis

Our best Spirit Airlines deals on United States to St. Louis flight tickets
Spirit Airlines
Jan 23
MCO6:09 amOrlando
9h 34m
1 stop
STL2:43 pmLambert-St Louis
Jan 30
STL4:28 pmLambert-St Louis
14h 39m
1 stop
MCO8:07 amOrlando
Spirit Airlines
Feb 6
MCO6:09 amOrlando
9h 34m
1 stop
STL2:43 pmLambert-St Louis
Feb 9
STL4:28 pmLambert-St Louis
22h 08m
2 stops
MCO3:36 pmOrlando
Spirit Airlines
Feb 6
BOS6:00 amBoston Logan Intl
9h 43m
1 stop
STL2:43 pmLambert-St Louis
Feb 11
STL3:48 pmLambert-St Louis
6h 44m
1 stop
BOS11:32 pmBoston Logan Intl

See travel insights to St. Louis from

How to get the cheapest flight ticket from United States 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, January is the cheapest month to fly from United States to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $297. The month of February is another great option to travel to St. Louis, with average flight prices from United States averaging around $306.

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 Tuesday when prices can be found for as low as $327. 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 $437. 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 United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $349 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 $371 per ticket.

What is the cheapest United States to Lambert-St Louis flight route?

Fly from Denver Intl to Lambert-St Louis for the best United States - Lambert-St Louis flight prices

What cabin class options are available on United States to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on United States to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to St. Louis flights?

You could potentially save up to 60% on your flight if you consider stops on a United States to St. Louis flight.

Cheap United States to St. Louis flight deals and tips

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

Best Price Found

$38

Fastest flight time

1h 55m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from United States in the past 72 hours is $38. The best round-trip flight deal from United States to St. Louis found on momondo in the last 72 hours is $63.
The fastest flight from United States to St. Louis takes 1h 55m
Direct flights go from United States to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

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

    Prices for flights from United States to Lambert-St Louis Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from United States 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 United States to Lambert-St Louis Airport.

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

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United States to St. Louis?


Best airlines flying from United States to St. Louis

Compare and see reviews for airlines that fly from United States to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $52Free CancellationRating
6.1
3,465 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $62Free CancellationRating
6.3
8,103 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $140Free CancellationRating
8.1
4,752 reviews
Search Southwest flights
United AirlinesPriceFrom $149Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights
American AirlinesPriceFrom $157Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Southern / MokulelePriceFrom $189Free CancellationRating
6.6
27 reviews
Search Southern / Mokulele flights
DeltaPriceFrom $196Free CancellationRating
8.0
8,570 reviews
Search Delta flights
Alaska AirlinesPriceFrom $216Free CancellationRating
8.0
9,552 reviews
Search Alaska Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from United States to St. Louis for you.

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

Yes. momondo enables you to select and highlight flights to St. Louis from United States with this policy.

How can momondo help me find flights from United States 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 United States to St. Louis.

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from United States and alert you when they change.


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