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

Frontier, Alaska Airlines, and Delta are the most popular carriers operating from Mexico to Lambert-St Louis

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

As of December 2025, 6 flights take off from Mexico and land in St. Louis each week. The most common flight departure day for this route is Mon, with 33% of weekly flights taking off on this day.

How long does it take to fly to St. Louis?

Flight times from Mexico to St. Louis vary, but if you’re flying out of Cancún and flying into St. Louis (one of the most popular routes), then the duration is 3h 21m on average. Another popular route from Mexico to St. Louis is flying from Puerto Vallarta to St. Louis, which will take roughly 6h 20m. Keep in mind that layovers or delays could extend your travel time.

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

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

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

The number of operators available for flights from Mexico to Lambert-St Louis Airport is 1 as of December 2025.

How old do you have to be to fly from Mexico to Lambert-St Louis 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 Mexico to Lambert-St Louis Airport.

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

The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$113 Cheap Flights from Mexico to St. Louis in 2025/26

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Find the cheapest flights from Mexico to St. Louis

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Mexico to St. Louis

Enter your travel dates to find the best prices.

11:42 am - 2:09 pm

CUN

STL

3h 27mnonstop

6:00 am - 10:30 am

STL

CUN

3h 30mnonstop

$251Frontier

Thu, Feb 19 - Sun, Feb 22

11:15 am - 11:33 pm

CUN

STL

13h 18m2 stops

11:00 am - 10:32 am

STL

CUN

22h 32m2 stops

$302Frontier

Sat, Jan 31 - Sat, Feb 7

2:44 pm - 10:14 pm

CUN

STL

8h 30m1 stop

8:30 am - 4:40 pm

STL

CUN

7h 10m1 stop

$317United Airlines

Thu, Feb 19 - Sun, Feb 22

3:18 pm - 10:59 pm

CUN

STL

8h 41m1 stop

6:00 am - 5:50 pm

STL

CUN

10h 50m1 stop

$319United Airlines

Thu, Feb 19 - Sun, Feb 22

10:13 am - 11:33 pm

CUN

STL

14h 20m1 stop

8:22 pm - 3:20 pm

STL

CUN

17h 58m1 stop

$327Multiple Airlines

Sat, Jan 31 - Sat, Feb 7

2:04 pm - 6:51 am

CUN

STL

17h 47m2 stops

5:42 pm - 9:13 am

STL

CUN

14h 31m1 stop

$356Multiple Airlines

Sun, Feb 1 - Sun, Feb 8

5:45 pm - 1:54 pm

PVR

STL

20h 09m1 stop

2:50 pm - 4:35 pm

STL

PVR

25h 45m1 stop

$477Alaska Airlines

Thu, Feb 5 - Sun, Feb 8

3:48 pm - 11:03 am

MTY

STL

19h 15m1 stop

7:15 am - 12:46 pm

STL

MTY

5h 31m1 stop

$515American Airlines

Fri, Jan 30 - Fri, Feb 6

2:21 pm - 10:59 pm

MLM

STL

8h 38m1 stop

3:37 pm - 1:34 pm

STL

MLM

21h 57m1 stop

$593American Airlines

Fri, Jan 30 - Fri, Feb 6

6:59 pm - 11:59 pm

PVR

STL

29h 00m2 stops

7:00 am - 12:34 pm

STL

PVR

29h 34m2 stops

$743Alaska Airlines

Sun, Feb 22 - Tue, Feb 24

Frontier flights from Mexico to St. Louis

Our best Frontier deals on Mexico to St. Louis flight tickets

Frontier

Feb 19

CUN11:42 amCancun

3h 27m

STL2:09 pmLambert-St Louis

Feb 22

STL6:00 amLambert-St Louis

3h 30m

CUN10:30 amCancun

$251

Find similar

Frontier

Jan 31

CUN11:15 amCancun

13h 18m

2 stops

STL11:33 pmLambert-St Louis

Feb 7

STL11:00 amLambert-St Louis

22h 32m

2 stops

CUN10:32 amCancun

$302

Find similar

Frontier

Feb 19

CUN11:42 amCancun

3h 27m

STL2:09 pmLambert-St Louis

Feb 22

STL6:00 amLambert-St Louis

3h 30m

CUN10:30 amCancun

$335

Find similar

American Airlines flights from Mexico to St. Louis

Our best American Airlines deals on Mexico to St. Louis flight tickets

American Airlines

Feb 19

CZM3:01 pmCozumel

19h 25m

1 stop

STL10:26 amLambert-St Louis

Feb 26

STL6:07 pmLambert-St Louis

20h 00m

1 stop

CZM2:07 pmCozumel

$433

Find similar

American Airlines

Feb 19

CZM3:01 pmCozumel

19h 25m

1 stop

STL10:26 amLambert-St Louis

Feb 26

STL6:07 pmLambert-St Louis

20h 00m

1 stop

CZM2:07 pmCozumel

$434

Find similar

American Airlines

Feb 19

CZM3:10 pmCozumel

17h 42m

1 stop

STL8:52 amLambert-St Louis

Feb 26

STL11:46 amLambert-St Louis

26h 24m

1 stop

CZM2:10 pmCozumel

$452

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Thu 2/19

11:42 am-2:09 pm

Nonstop3h 27m

Lambert-St Louis

Sun 2/22

6:00 am-10:30 am

Nonstop3h 30m

$251

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Sat 1/31

11:15 am-11:33 pm

2 stops13h 18m

Lambert-St Louis

Sat 2/7

11:00 am-10:32 am

2 stops22h 32m

$302

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Thu 2/19

2:44 pm-10:14 pm

1 stop8h 30m

Lambert-St Louis

Sun 2/22

8:30 am-4:40 pm

1 stop7h 10m

$317

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Thu 2/19

3:18 pm-10:59 pm

1 stop8h 41m

Lambert-St Louis

Sun 2/22

6:00 am-5:50 pm

1 stop10h 50m

$319

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Sat 1/31

10:13 am-11:33 pm

1 stop14h 20m

Lambert-St Louis

Sat 2/7

8:22 pm-3:20 pm

1 stop17h 58m

$327

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Sun 2/1

2:04 pm-6:51 am

2 stops17h 47m

Lambert-St Louis

Sun 2/8

5:42 pm-9:13 am

1 stop14h 31m

$356

Puerto VallartaSt. Louis

PVR - STL

PVRSTL

Puerto Vallarta Ordaz

Thu 2/5

5:45 pm-1:54 pm

1 stop20h 09m

Lambert-St Louis

Sun 2/8

2:50 pm-4:35 pm

1 stop25h 45m

$477

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Fri 1/30

3:48 pm-11:03 am

1 stop19h 15m

Lambert-St Louis

Fri 2/6

7:15 am-12:46 pm

1 stop5h 31m

$515

MoreliaSt. Louis

MLM - STL

MLMSTL

Morelia

Fri 1/30

2:21 pm-10:59 pm

1 stop8h 38m

Lambert-St Louis

Fri 2/6

3:37 pm-1:34 pm

1 stop21h 57m

$593

Puerto VallartaSt. Louis

PVR - STL

PVRSTL

Puerto Vallarta Ordaz

Sun 2/22

6:59 pm-11:59 pm

2 stops29h 00m

Lambert-St Louis

Tue 2/24

7:00 am-12:34 pm

2 stops29h 34m

$743

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 Mexico 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 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 $176. 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 Monday because tickets tend to average around $229. 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 Mexico in the morning is the least expensive time of day to depart. momondo users have found prices as low as $187 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $372 per ticket.

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

Fly from Cancun to Lambert-St Louis for the best Mexico - Lambert-St Louis flight prices

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

There are 2 cabin classes available to choose from on Mexico 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.

Cheap Mexico to St. Louis flight deals and tips

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

Best Price Found	$182
Fastest flight time	3h 21m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Mexico in the past 72 hours is $182. The best round-trip flight deal from Mexico to St. Louis found on momondo in the last 72 hours is $133.

The fastest flight from Mexico to St. Louis takes 3h 21m

Direct flights go from Mexico to St. Louis every day.

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

Search flight deals

When did momondo last update prices for flights from Mexico to Lambert-St Louis Airport?
Prices for flights from Mexico to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Mexico to Lambert-St Louis Airport?
The number of operators available for flights from Mexico to Lambert-St Louis Airport is 1 as of December 2025.
How old do you have to be to fly from Mexico to Lambert-St Louis 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 Mexico to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Mexico to St. Louis?
Based on momondo bookings for flights between Mexico and St. Louis, the leading plane model is Boeing 737 MAX 8, making up 26.83% of the total bookings. Other popular models include Airbus A321-100/200 with 23.17%, Boeing 737 MAX 9 with 9.76%, and Boeing 737-700 Passenger/BBJ1 (winglets) with 9.76%.

Best airlines flying from Mexico to St. Louis

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $441	Free Cancellation	Rating 7.4 9,091 reviews		Search United Airlines flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Maryland Heights

O'Fallon

Florissant

Fenton

Wentzville

St. Peters

Collinsville

Alton

Clayton

Festus

Glencoe

Farmington

Eureka

Edwardsville

Litchfield

Shrewsbury

Why use momondo?

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

Finding the right flight to St. Louis from Mexico 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 Mexico to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Mexico to St. Louis flights to just show those with flexible booking policies.

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

Once you have performed a search for Mexico to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to St. Louis from Mexico. 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.