What is the cheapest airline that flies from North America to Lambert-St Louis?

Frontier, Southwest, and United Airlines are the most popular carriers operating from North America to Lambert-St Louis

What airlines fly to St. Louis?

Southwest, Frontier and American Airlines are the top three most popular airlines that fly to St. Louis from North America according to our data. Southwest is the first choice among our users, with 33% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 8 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

How many flights depart from North America to St. Louis on average per day?

As of January 2026, there are 63 flights per day flying from North America to St. Louis. The most common time of day flights depart is 3:00PM, with 39% of flights taking off in the afternoon.

How many flights depart from North America to St. Louis on average per week?

As of January 2026, there are 443 flights per week flying from North America to St. Louis. The most common day of the week flights depart is Fri, with 30% of flights taking off on this day.

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

Prices for flights from North America to Lambert-St Louis Airport refresh daily.

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

As of January 2026, there are 8 operators available to choose from for flights from North America to Lambert-St Louis Airport.

How old do you have to be to fly from North America to Lambert-St Louis Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from North America to Lambert-St Louis Airport.

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

The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$37 Cheap Flights from North America to St. Louis in 2026

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9:41 am - 12:50 pm

DEN

STL

2h 09mnonstop

5:42 pm - 5:36 pm

STL

DEN

24h 54m1 stop

$98Frontier

lun., feb. 2 - mar., feb. 3

11:40 am - 2:48 pm

DEN

STL

2h 08mnonstop

7:39 pm - 9:11 pm

STL

DEN

2h 32mnonstop

$99Frontier

mié., ene. 14 - vie., ene. 23

8:31 am - 2:50 pm

DFW

STL

6h 19m1 stop

5:04 pm - 7:20 pm

STL

DFW

2h 16mnonstop

$204American Airlines

mar., ene. 27 - mar., ene. 27

9:19 am - 11:03 am

DFW

STL

1h 44mnonstop

7:15 am - 9:34 am

STL

DFW

2h 19mnonstop

$206American Airlines

sáb., ene. 17 - dom., ene. 18

12:35 pm - 4:55 pm

DCA

STL

5h 20m1 stop

7:40 am - 4:15 pm

STL

DCA

7h 35m2 stops

$260Southwest

sáb., ene. 31 - sáb., feb. 7

2:55 pm - 4:52 pm

LGA

STL

2h 57mnonstop

5:35 pm - 9:01 pm

STL

LGA

2h 26mnonstop

$267Delta

mar., feb. 17 - vie., feb. 20

6:10 pm - 8:09 pm

LGA

STL

2h 59mnonstop

7:25 am - 10:47 am

STL

LGA

2h 22mnonstop

$271Delta

mar., feb. 17 - sáb., feb. 21

4:40 pm - 8:55 pm

DCA

STL

5h 15m1 stop

1:05 pm - 4:00 pm

STL

DCA

1h 55mnonstop

$272Southwest

sáb., ene. 17 - dom., ene. 18

8:40 am - 10:13 am

IAD

STL

2h 33mnonstop

6:30 am - 11:46 am

STL

IAD

4h 16m1 stop

$275United Airlines

mié., ene. 28 - lun., feb. 2

5:50 pm - 7:27 pm

IAD

STL

2h 37mnonstop

12:15 pm - 3:27 pm

STL

IAD

2h 12mnonstop

$282United Airlines

mié., feb. 4 - mar., mar. 10

Frontier flights from North America to St. Louis

Our best Frontier deals on North America to St. Louis flight tickets

Frontier

Jan 21

ATL6:00 amAtlanta Hartsfield-Jackson

1h 51m

STL6:51 amLambert-St Louis

Jan 28

STL8:22 pmLambert-St Louis

1h 44m

ATL11:06 pmAtlanta Hartsfield-Jackson

$98

Find similar

Frontier

Jan 30

ATL6:00 amAtlanta Hartsfield-Jackson

1h 51m

STL6:51 amLambert-St Louis

Feb 6

STL8:22 pmLambert-St Louis

1h 44m

ATL11:06 pmAtlanta Hartsfield-Jackson

$107

Find similar

Frontier

Jan 21

ATL6:00 amAtlanta Hartsfield-Jackson

1h 51m

STL6:51 amLambert-St Louis

Jan 28

STL3:46 pmLambert-St Louis

18h 25m

1 stop

ATL11:11 amAtlanta Hartsfield-Jackson

$109

Find similar

Delta flights from North America to St. Louis

Our best Delta deals on North America to St. Louis flight tickets

Delta

Mar 3

DEN12:59 amDenver Intl

7h 07m

1 stop

STL9:06 amLambert-St Louis

Mar 4

STL2:22 pmLambert-St Louis

6h 52m

1 stop

DEN8:14 pmDenver Intl

$177

Find similar

Delta

Feb 17

LGA2:55 pmNew York LaGuardia

2h 57m

STL4:52 pmLambert-St Louis

Feb 20

STL5:35 pmLambert-St Louis

2h 26m

LGA9:01 pmNew York LaGuardia

$267

Find similar

Delta

Feb 18

DCA9:00 amWashington, D.C. Reagan-National

6h 47m

1 stop

STL2:47 pmLambert-St Louis

Feb 25

STL1:13 pmLambert-St Louis

4h 35m

1 stop

DCA6:48 pmWashington, D.C. Reagan-National

$271

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

lun. 2/2

9:41 am-12:50 pm

Nonstop2h 09m

Lambert-St Louis

mar. 2/3

5:42 pm-5:36 pm

1 stop24h 54m

$98

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

mié. 1/14

11:40 am-2:48 pm

Nonstop2h 08m

Lambert-St Louis

vie. 1/23

7:39 pm-9:11 pm

Nonstop2h 32m

$99

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

mar. 1/27

8:31 am-2:50 pm

1 stop6h 19m

Lambert-St Louis

mar. 1/27

5:04 pm-7:20 pm

Nonstop2h 16m

$204

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

sáb. 1/17

9:19 am-11:03 am

Nonstop1h 44m

Lambert-St Louis

dom. 1/18

7:15 am-9:34 am

Nonstop2h 19m

$206

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 1/31

12:35 pm-4:55 pm

1 stop5h 20m

Lambert-St Louis

sáb. 2/7

7:40 am-4:15 pm

2 stops7h 35m

$260

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

mar. 2/17

2:55 pm-4:52 pm

Nonstop2h 57m

Lambert-St Louis

vie. 2/20

5:35 pm-9:01 pm

Nonstop2h 26m

$267

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

mar. 2/17

6:10 pm-8:09 pm

Nonstop2h 59m

Lambert-St Louis

sáb. 2/21

7:25 am-10:47 am

Nonstop2h 22m

$271

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 1/17

4:40 pm-8:55 pm

1 stop5h 15m

Lambert-St Louis

dom. 1/18

1:05 pm-4:00 pm

Nonstop1h 55m

$272

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

mié. 1/28

8:40 am-10:13 am

Nonstop2h 33m

Lambert-St Louis

lun. 2/2

6:30 am-11:46 am

1 stop4h 16m

$275

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

mié. 2/4

5:50 pm-7:27 pm

Nonstop2h 37m

Lambert-St Louis

mar. 3/10

12:15 pm-3:27 pm

Nonstop2h 12m

$282

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from North America 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

Prices

Airlines

Other information

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

In general, January is the cheapest month to fly from North America to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $299. The month of March is another great option to travel to St. Louis, with average flight prices from North America averaging around $299.

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 Wednesday when prices can be found for as low as $311. 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 $440. 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 North America in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $341 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $369 per ticket.

What is the cheapest North America to Lambert-St Louis flight route?

Fly from Orlando to Lambert-St Louis for the best North America - Lambert-St Louis flight prices

What cabin class options are available on North America to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on North America 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 North America to St. Louis flights?

No. A direct flight is the cheapest option for a flight between North America to St. Louis.

Cheap North America to St. Louis flight deals and tips

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

Best Price Found	$89
Fastest flight time	1h 00m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from North America in the past 72 hours is $89. The best round-trip flight deal from North America to St. Louis found on momondo in the last 72 hours is $61.

The fastest flight from North America to St. Louis takes 1h 00m

Direct flights go from North America to St. Louis every day.

There is 1 airport in St. Louis. From North America there are direct flights to Lambert-St Louis (STL).

Search flight deals

When did momondo last update prices for flights from North America to Lambert-St Louis Airport?
Prices for flights from North America to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from North America to Lambert-St Louis Airport?
As of January 2026, there are 8 operators available to choose from for flights from North America to Lambert-St Louis Airport.
How old do you have to be to fly from North America to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from North America to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from North America to St. Louis?
Based on momondo bookings for flights between North America and St. Louis, the leading plane model is Boeing 737 MAX 8, making up 18.61% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 13.50%, Boeing 737-700 Passenger/BBJ1 (winglets) with 12.18%, and Embraer 175 with 8.35%.

Best airlines flying from North America to St. Louis

Compare and see reviews for airlines that fly from North America to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $65	Free Cancellation	Rating 5.7 3,066 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $71	Free Cancellation	Rating 6.3 8,256 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $133	Free Cancellation	Rating 7.2 11,072 reviews	Search American Airlines flights
United Airlines	PriceFrom $166	Free Cancellation	Rating 7.4 9,132 reviews	Search United Airlines flights
Delta	PriceFrom $177	Free Cancellation	Rating 7.9 8,017 reviews	Search Delta flights
Southwest	PriceFrom $186	Free Cancellation	Rating 8.0 4,252 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $257	Free Cancellation	Rating 8.0 11,597 reviews	Search Alaska Airlines flights

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Florissant

Fenton

Collinsville

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Wentzville

Alton

Farmington

Clayton

Glencoe

Eureka

Festus

Edwardsville

Litchfield

Shrewsbury

Why use momondo?

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

It is quick and easy to find North America to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

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

How can momondo help me find flights from North America 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 North America to St. Louis.

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

Yes momondo offers price alerts on flights to St. Louis from North America. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your St. Louis trip

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Cheap flights from North America to St. Louis from $37

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from North America to St. Louis departing on 3/31. 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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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from North America to St. Louis

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Frontier flights from North America to St. Louis

Our best Frontier deals on North America to St. Louis flight tickets

Delta flights from North America to St. Louis

Our best Delta deals on North America to St. Louis flight tickets

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How to get the cheapest flight ticket from North America to St. Louis

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

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

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

What is the cheapest North America to Lambert-St Louis flight route?

Fly from Orlando to Lambert-St Louis for the best North America - Lambert-St Louis flight prices

What cabin class options are available on North America to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on North America 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 North America to St. Louis flights?

No. A direct flight is the cheapest option for a flight between North America to St. Louis.

What is the cheapest airline that flies from North America to Lambert-St Louis?

Frontier, Southwest, and United Airlines are the most popular carriers operating from North America to Lambert-St Louis

What airlines fly to St. Louis?

How many flights depart from North America to St. Louis on average per day?

As of January 2026, there are 63 flights per day flying from North America to St. Louis. The most common time of day flights depart is 3:00PM, with 39% of flights taking off in the afternoon.

How many flights depart from North America to St. Louis on average per week?

As of January 2026, there are 443 flights per week flying from North America to St. Louis. The most common day of the week flights depart is Fri, with 30% of flights taking off on this day.

Cheap North America to St. Louis flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

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

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

How old do you have to be to fly from North America to Lambert-St Louis Airport?

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

What is the most popular plane model from North America to St. Louis?

Best airlines flying from North America to St. Louis

Compare and see reviews for airlines that fly from North America to St. Louis with momondo

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

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.

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