Cheap flights from the United States to St. Louis from $44
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 9/6. 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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Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from United States to St. Louis by changing tabs
Frontier![Frontier]()
Aug 5![Frontier]()
Aug 7
DFW11:45 amDallas/Fort Worth
1h 46m
STL1:31 pmLambert-St Louis
STL2:11 pmLambert-St Louis
1h 46m
DFW3:57 pmDallas/Fort Worth
Multiple Airlines![Multiple Airlines]()
Aug 9![Multiple Airlines]()
Aug 14
PHL7:18 pmPhiladelphia
2h 24m
STL8:42 pmLambert-St Louis
STL8:12 amLambert-St Louis
12h 22m
1 stop
PHL9:34 pmPhiladelphia
Frontier![Frontier]()
Aug 5![Frontier]()
Aug 10
PHL7:18 pmPhiladelphia
2h 24m
STL8:42 pmLambert-St Louis
STL3:09 pmLambert-St Louis
2h 12m
PHL6:21 pmPhiladelphia
Spirit Airlines![Spirit Airlines]()
Aug 7![Spirit Airlines]()
Aug 21
LAX7:03 amLos Angeles
6h 03m
1 stop
STL3:06 pmLambert-St Louis
STL1:48 pmLambert-St Louis
11h 31m
1 stop
LAX11:19 pmLos Angeles
Frontier![Frontier]()
Sep 9![Frontier]()
Sep 16
DFW12:40 pmDallas/Fort Worth
1h 46m
STL2:26 pmLambert-St Louis
STL3:16 pmLambert-St Louis
1h 45m
DFW5:01 pmDallas/Fort Worth
Find the cheapest one-way flights from United States to St. Louis
If you're looking for one-way flights from United States to St. Louis, view some of our deals below provided by American Airlines, Frontier and Spirit Airlines
Find the cheapest direct flights from the United States to St. Louis
Frontier![Frontier]()
Sep 6![Frontier]()
Sep 9
DFW4:59 pmDallas/Fort Worth
1h 46m
STL6:45 pmLambert-St Louis
STL3:16 pmLambert-St Louis
1h 45m
DFW5:01 pmDallas/Fort Worth
American Airlines![American Airlines]()
Aug 8![American Airlines]()
Aug 8
PHL8:19 amPhiladelphia
2h 31m
STL9:50 amLambert-St Louis
STL12:55 pmLambert-St Louis
2h 11m
PHL4:06 pmPhiladelphia
Frontier![Frontier]()
Sep 6![Frontier]()
Sep 9
DFW12:35 pmDallas/Fort Worth
1h 46m
STL2:21 pmLambert-St Louis
STL3:16 pmLambert-St Louis
1h 45m
DFW5:01 pmDallas/Fort Worth
Frontier![Frontier]()
Oct 14![Frontier]()
Oct 28
PHL9:01 amPhiladelphia
2h 30m
STL10:31 amLambert-St Louis
STL11:21 amLambert-St Louis
2h 13m
PHL2:34 pmPhiladelphia
Delta![Delta]()
Sep 27![Delta]()
Sep 30
LGA6:45 amNew York LaGuardia
2h 39m
STL8:24 amLambert-St Louis
STL6:00 amLambert-St Louis
2h 29m
LGA9:29 amNew York LaGuardia
Search last-minute flights to St. Louis from United States
Find and compare round-trip flight prices for your last-minute flight from United States to St. Louis
Frontier![Frontier]()
Aug 2![Frontier]()
Aug 7
PHL7:18 pmPhiladelphia
2h 24m
STL8:42 pmLambert-St Louis
STL9:32 pmLambert-St Louis
2h 12m
PHL12:44 amPhiladelphia
Delta![Delta]()
Aug 3![Delta]()
Aug 5
PHL12:57 pmPhiladelphia
4h 42m
1 stop
STL4:39 pmLambert-St Louis
STL7:06 pmLambert-St Louis
4h 30m
1 stop
PHL12:36 amPhiladelphia
Multiple Airlines![Multiple Airlines]()
Aug 6![Multiple Airlines]()
Aug 17
SEA10:10 pmSeattle/Tacoma Intl
14h 56m
1 stop
STL3:06 pmLambert-St Louis
STL7:48 pmLambert-St Louis
13h 12m
1 stop
SEA7:00 amSeattle/Tacoma Intl
Frontier![Frontier]()
Jul 31![Frontier]()
Aug 7
DFW11:35 amDallas/Fort Worth
1h 46m
STL1:21 pmLambert-St Louis
STL2:11 pmLambert-St Louis
1h 46m
DFW3:57 pmDallas/Fort Worth
American Airlines![American Airlines]()
Aug 2![American Airlines]()
Aug 4
PHL2:45 pmPhiladelphia
2h 27m
STL4:12 pmLambert-St Louis
STL6:08 amLambert-St Louis
2h 15m
PHL9:23 amPhiladelphia
Spirit Airlines flights from United States to St. Louis
Our best Spirit Airlines deals on United States to St. Louis flight tickets
Spirit Airlines![Spirit Airlines]()
Aug 7![Spirit Airlines]()
Aug 21
LAX7:03 amLos Angeles
6h 03m
1 stop
STL3:06 pmLambert-St Louis
STL1:48 pmLambert-St Louis
11h 31m
1 stop
LAX11:19 pmLos Angeles
Spirit Airlines![Spirit Airlines]()
Aug 14![Spirit Airlines]()
Aug 21
DFW6:24 pmDallas/Fort Worth
12h 58m
1 stop
STL7:22 amLambert-St Louis
STL8:12 amLambert-St Louis
5h 53m
1 stop
DFW2:05 pmDallas/Fort Worth
United Airlines flights from United States to St. Louis
Our best United Airlines deals on United States to St. Louis flight tickets
United Airlines![United Airlines]()
Sep 3![United Airlines]()
Sep 5
EWR6:00 amNewark
5h 07m
1 stop
STL10:07 amLambert-St Louis
STL6:02 amLambert-St Louis
2h 28m
EWR9:30 amNewark
United Airlines![United Airlines]()
Aug 17![United Airlines]()
Aug 21
IAD8:15 amWashington, D.C. Dulles Intl
2h 07m
STL9:22 amLambert-St Louis
STL8:25 amLambert-St Louis
2h 08m
IAD11:33 amWashington, D.C. Dulles Intl
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 airline that flies to St. Louis from United States?
Frontier. Frontier, Spirit Airlines, and Southern / Mokulele are the most popular carriers operating from United States to St. Louis
What is the cheapest United States to St. Louis flight route?
Orlando - Lambert-St Louis. Fly from Orlando to Lambert-St Louis for the best United States - St. Louis flight prices
How many flights depart from United States to St. Louis on average per day?
17 flights are operational weekly from United States to St. Louis as of July 2024. The most popular departure time for this route is 5:00PM, with 48% of flights per day taking off in the afternoon.
What cabin class options are available on United States to St. Louis flights?
There are 3 cabin classes available to choose from on United States to 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?
No. A direct flight is the cheapest option for a flight between United States to St. Louis.
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
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?
As of July 2024, there are 8 operators available to choose from 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.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $43 | Free Cancellation | Rating 6.2 3,835 reviews | |||
| PriceFrom $81 | Free Cancellation | Rating 6.3 8,407 reviews | |||
| PriceFrom $159 | Free Cancellation | Rating 7.4 10,000 reviews | |||
| PriceFrom $173 | Free Cancellation | Rating 7.6 3,996 reviews | |||
| PriceFrom $185 | Free Cancellation | Rating 7.4 28 reviews | |||
| PriceFrom $189 | Free Cancellation | Rating 7.3 10,000 reviews | |||
| PriceFrom $194 | Free Cancellation | Rating 8.0 9,630 reviews | |||
| PriceFrom $283 | Free Cancellation | Rating 8.0 9,365 reviews |
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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