Cheap flights from Mexico to St. Louis from $161

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Mexico to St. Louis departing on 8/28. 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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0 bags

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Find the cheapest flights from Mexico to St. Louis

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

United Airlines Logo
7:51 am - 11:44 pmCUN-STL
15h 53m2 stops
United Airlines Logo
7:08 am - 7:20 pmSTL-CUN
12h 12m2 stops
$314United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
Frontier Logo
2:49 pm - 6:10 pmCUN-STL
3h 21mnonstop
Frontier Logo
10:21 am - 1:34 pmSTL-CUN
3h 13mnonstop
$346Frontier
Find Deal
Tue, Sep 16 - Tue, Sep 23
Delta Logo
8:00 am - 9:15 pmCUN-STL
13h 15m1 stop
Delta Logo
9:19 am - 8:45 pmSTL-CUN
11h 26m2 stops
$357Delta
Find Deal
Mon, Sep 15 - Mon, Sep 22
 Logo
2:49 pm - 6:10 pmCUN-STL
3h 21mnonstop
 Logo
1:26 pm - 8:15 pmSTL-CUN
6h 49m1 stop
Tue, Sep 16 - Tue, Sep 23
 Logo
2:49 pm - 6:10 pmCUN-STL
3h 21mnonstop
 Logo
11:04 am - 8:15 pmSTL-CUN
9h 11m1 stop
Mon, Sep 15 - Mon, Sep 22
Delta Logo
9:10 am - 9:15 pmCUN-STL
12h 05m2 stops
Delta Logo
9:19 am - 8:45 pmSTL-CUN
11h 26m2 stops
$409Delta
Find Deal
Mon, Sep 15 - Mon, Sep 22
Aeromexico Logo
6:05 am - 10:02 pmPVR-STL
14h 57m2 stops
Aeromexico Logo
7:00 am - 11:40 pmSTL-PVR
17h 40m2 stops
$490Aeromexico
Find Deal
Mon, Sep 8 - Wed, Sep 10
Aeromexico Logo
8:15 pm - 10:02 pmPVR-STL
24h 47m2 stops
Aeromexico Logo
1:26 pm - 11:40 pmSTL-PVR
11h 14m2 stops
$505Aeromexico
Find Deal
Mon, Sep 8 - Wed, Sep 10
American Airlines Logo
5:45 am - 8:51 pmMTY-STL
14h 06m1 stop
American Airlines Logo
7:41 pm - 8:55 amSTL-MTY
14h 14m1 stop
$508American Airlines
Find Deal
Thu, Oct 16 - Mon, Oct 20
American Airlines Logo
6:09 am - 6:19 pmMLM-STL
12h 10m1 stop
American Airlines Logo
5:21 am - 9:30 pmSTL-MLM
16h 09m1 stop
$626American Airlines
Find Deal
Tue, Dec 23 - Sun, Jan 4

Aeromexico flights from Mexico to St. Louis

Our best Aeromexico deals on Mexico to St. Louis flight tickets
Aeromexico
Sep 8
PVR6:05 amPuerto Vallarta Ordaz
14h 57m
2 stops
STL10:02 pmLambert-St Louis
Sep 10
STL7:00 amLambert-St Louis
17h 40m
2 stops
PVR11:40 pmPuerto Vallarta Ordaz
Aeromexico
Sep 8
PVR8:15 pmPuerto Vallarta Ordaz
24h 47m
2 stops
STL10:02 pmLambert-St Louis
Sep 10
STL1:26 pmLambert-St Louis
11h 14m
2 stops
PVR11:40 pmPuerto Vallarta Ordaz
Aeromexico
Oct 16
MTY7:50 amMonterrey Gen Mariano Escobedo
12h 40m
2 stops
STL9:30 pmLambert-St Louis
Oct 20
STL6:00 amLambert-St Louis
15h 12m
2 stops
MTY8:12 pmMonterrey Gen Mariano Escobedo

United Airlines flights from Mexico to St. Louis

Our best United Airlines deals on Mexico to St. Louis flight tickets
United Airlines
Sep 16
CUN7:51 amCancun
15h 53m
2 stops
STL11:44 pmLambert-St Louis
Sep 23
STL7:08 amLambert-St Louis
12h 12m
2 stops
CUN7:20 pmCancun
United Airlines
Sep 15
CUN1:12 pmCancun
8h 56m
1 stop
STL10:08 pmLambert-St Louis
Sep 22
STL8:20 amLambert-St Louis
11h 00m
1 stop
CUN7:20 pmCancun
United Airlines
Sep 15
PVR12:25 pmPuerto Vallarta Ordaz
28h 58m
2 stops
STL6:23 pmLambert-St Louis
Sep 22
STL6:15 amLambert-St Louis
6h 12m
1 stop
PVR11:27 amPuerto Vallarta Ordaz

momondo Fare Finder

 
Customize your flight search to find flights from Mexico to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 3, 2025.
Use the filters below to find and compare flights from Mexico to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Tue 9/16

7:51 am-11:44 pm

2 stops15h 53m

Lambert-St Louis

Tue 9/23

7:08 am-7:20 pm

2 stops12h 12m

$314

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Tue 9/16

2:49 pm-6:10 pm

Nonstop3h 21m

Lambert-St Louis

Tue 9/23

10:21 am-1:34 pm

Nonstop3h 13m

$346

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Mon 9/15

8:00 am-9:15 pm

1 stop13h 15m

Lambert-St Louis

Mon 9/22

9:19 am-8:45 pm

2 stops11h 26m

$357

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Tue 9/16

2:49 pm-6:10 pm

Nonstop3h 21m

Lambert-St Louis

Tue 9/23

1:26 pm-8:15 pm

1 stop6h 49m

$395

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Mon 9/15

2:49 pm-6:10 pm

Nonstop3h 21m

Lambert-St Louis

Mon 9/22

11:04 am-8:15 pm

1 stop9h 11m

$397

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Mon 9/15

9:10 am-9:15 pm

2 stops12h 05m

Lambert-St Louis

Mon 9/22

9:19 am-8:45 pm

2 stops11h 26m

$409

Puerto VallartaSt. Louis

PVR - STL

PVRSTL

Puerto Vallarta Ordaz

Mon 9/8

6:05 am-10:02 pm

2 stops14h 57m

Lambert-St Louis

Wed 9/10

7:00 am-11:40 pm

2 stops17h 40m

$490

Puerto VallartaSt. Louis

PVR - STL

PVRSTL

Puerto Vallarta Ordaz

Mon 9/8

8:15 pm-10:02 pm

2 stops24h 47m

Lambert-St Louis

Wed 9/10

1:26 pm-11:40 pm

2 stops11h 14m

$505

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 10/16

5:45 am-8:51 pm

1 stop14h 06m

Lambert-St Louis

Mon 10/20

7:41 pm-8:55 am

1 stop14h 14m

$508

MoreliaSt. Louis

MLM - STL

MLMSTL

Morelia

Tue 12/23

6:09 am-6:19 pm

1 stop12h 10m

Lambert-St Louis

Sun 1/4

5:21 am-9:30 pm

1 stop16h 09m

$626

Flights are sorted by cheapest round-trip flights first.

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See travel insights to St. Louis from

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

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 Tuesday because tickets tend to average around $246. 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 $204 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 $281 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 3 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.

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

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

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

$161

Fastest flight time

3h 08m

Direct flights

Mon, Tue, Wed, Thu, Sat and Sun

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Mexico in the past 72 hours is $161. The best round-trip flight deal from Mexico to St. Louis found on momondo in the last 72 hours is $314.
The fastest flight from Mexico to St. Louis takes 3h 08m
Direct flights go from Mexico to St. Louis on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday. Airlines offering direct flights are: Southwest, Frontier and Volaris.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • 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?

  • 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?


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 AirlinesPriceFrom $441Free CancellationRating
7.4
8,905 reviews
Search United Airlines flights
AeromexicoPriceFrom $453Free CancellationRating
7.5
1,718 reviews
Search Aeromexico flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
Fenton
Collinsville
O'Fallon
Alton
St. Peters
Farmington
Wentzville
Festus
Glencoe
Eureka
Edwardsville
Clayton
Shrewsbury
Grafton

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.


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1 adult
Fri 8/8
Fri 8/15

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