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Cheap flights from Mexico City to St. Louis from $188

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Mexico City to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:00 am - 4:58 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
8h 58m1 stop Dallas/Fort Worth
Frontier Logo
5:53 pm - 10:45 amSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
17h 52m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$397Frontier
Thu, Oct 15 - Mon, Oct 19
Frontier Logo
8:45 pm - 3:52 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
19h 07m1 stop Cancun
Frontier Logo
6:49 pm - 10:45 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
27h 56m1 stop Dallas/Fort Worth
$402Frontier
Wed, Nov 4 - Mon, Nov 9
Frontier Logo
7:00 am - 4:58 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
8h 58m1 stop Dallas/Fort Worth
Frontier Logo
5:53 pm - 10:45 amSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
17h 52m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$413Frontier
Thu, Oct 15 - Mon, Oct 19
Frontier Logo
7:00 am - 4:58 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
8h 58m1 stop Dallas/Fort Worth
Frontier Logo
5:53 pm - 10:45 amSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
17h 52m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$414Frontier
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
7:10 am - 9:09 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
12h 59m1 stop Newark
United Airlines Logo
6:15 am - 1:15 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
8h 00m1 stop Houston George Bush Intcntl
$550United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
8:05 am - 8:36 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
11h 31m1 stop Denver Intl
United Airlines Logo
6:15 am - 5:50 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
12h 35m1 stop Houston George Bush Intcntl
$551United Airlines
Thu, Oct 15 - Mon, Oct 19
Delta Logo
9:40 am - 9:59 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
12h 19m2 stops Austin Bergstrom Atlanta Hartsfield-Jackson
Delta Logo
12:28 pm - 10:45 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
10h 17m2 stops Minneapolis St Paul Houston George Bush Intcntl
$551Delta
Wed, Nov 4 - Mon, Nov 9
United Airlines Logo
12:25 pm - 10:24 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
9h 59m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
5:55 pm - 10:05 amSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
16h 10m1 stop Houston George Bush Intcntl
$552United Airlines
Tue, Nov 17 - Sun, Nov 22
Delta Logo
7:50 am - 11:16 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
14h 26m2 stops Los Angeles Minneapolis St Paul
Delta Logo
6:15 am - 3:20 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
10h 05m2 stops Minneapolis St Paul San Antonio
$590Delta
Wed, Sep 16 - Wed, Sep 23
Delta Logo
8:00 am - 11:58 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
14h 58m2 stops Guadalajara Miguel Hidal Atlanta Hartsfield-Jackson
Delta Logo
7:05 am - 1:55 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
7h 50m1 stop Atlanta Hartsfield-Jackson
$773Delta
Mon, Sep 7 - Wed, Sep 9

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Frontier flights from Mexico City to St. Louis

Our best Frontier deals on Mexico City to St. Louis flight tickets
Frontier
Oct 15
MEX7:00 amMexico City Benito Juarez
8h 58m
1 stop
STL4:58 pmLambert-St Louis
Oct 19
STL5:53 pmLambert-St Louis
17h 52m
2 stops
MEX10:45 amMexico City Benito Juarez
$397
Frontier
Nov 4
MEX8:45 pmMexico City Benito Juarez
19h 07m
1 stop
STL3:52 pmLambert-St Louis
Nov 9
STL6:49 pmLambert-St Louis
27h 56m
1 stop
MEX10:45 pmMexico City Benito Juarez
$402
Frontier
Oct 15
MEX7:00 amMexico City Benito Juarez
8h 58m
1 stop
STL4:58 pmLambert-St Louis
Oct 19
STL5:53 pmLambert-St Louis
17h 52m
2 stops
MEX10:45 amMexico City Benito Juarez
$413

United Airlines flights from Mexico City to St. Louis

Our best United Airlines deals on Mexico City to St. Louis flight tickets
United Airlines
Oct 15
MEX7:10 amMexico City Benito Juarez
12h 59m
1 stop
STL9:09 pmLambert-St Louis
Oct 19
STL6:15 amLambert-St Louis
8h 00m
1 stop
MEX1:15 pmMexico City Benito Juarez
$550
United Airlines
Oct 15
MEX8:05 amMexico City Benito Juarez
11h 31m
1 stop
STL8:36 pmLambert-St Louis
Oct 19
STL6:15 amLambert-St Louis
12h 35m
1 stop
MEX5:50 pmMexico City Benito Juarez
$551
United Airlines
Nov 17
MEX12:25 pmMexico City Benito Juarez
9h 59m
2 stops
STL10:24 pmLambert-St Louis
Nov 22
STL5:55 pmLambert-St Louis
16h 10m
1 stop
MEX10:05 amMexico City Benito Juarez
$552

momondo Fare Finder

 
Use the filters below to find and compare flights from Mexico City to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Thu 10/15

7:00 am-4:58 pm

1 stop8h 58m

Lambert-St Louis

Mon 10/19

5:53 pm-10:45 am

2 stops17h 52m

$397

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Wed 11/4

8:45 pm-3:52 pm

1 stop19h 07m

Lambert-St Louis

Mon 11/9

6:49 pm-10:45 pm

1 stop27h 56m

$402

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Thu 10/15

7:00 am-4:58 pm

1 stop8h 58m

Lambert-St Louis

Mon 10/19

5:53 pm-10:45 am

2 stops17h 52m

$413

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Thu 10/15

7:00 am-4:58 pm

1 stop8h 58m

Lambert-St Louis

Mon 10/19

5:53 pm-10:45 am

2 stops17h 52m

$414
Quickest round-trip

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Thu 10/15

7:10 am-9:09 pm

1 stop12h 59m

Lambert-St Louis

Mon 10/19

6:15 am-1:15 pm

1 stop8h 00m

$550

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Thu 10/15

8:05 am-8:36 pm

1 stop11h 31m

Lambert-St Louis

Mon 10/19

6:15 am-5:50 pm

1 stop12h 35m

$551

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Wed 11/4

9:40 am-9:59 pm

2 stops12h 19m

Lambert-St Louis

Mon 11/9

12:28 pm-10:45 pm

2 stops10h 17m

$551

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Tue 11/17

12:25 pm-10:24 pm

2 stops9h 59m

Lambert-St Louis

Sun 11/22

5:55 pm-10:05 am

1 stop16h 10m

$552

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Wed 9/16

7:50 am-11:16 pm

2 stops14h 26m

Lambert-St Louis

Wed 9/23

6:15 am-3:20 pm

2 stops10h 05m

$590

Mexico CitySt. Louis

MEX Mexico City Benito Juarez - STL Lambert-St Louis

MEXSTL

Mexico City Benito Juarez

Mon 9/7

8:00 am-11:58 pm

2 stops14h 58m

Lambert-St Louis

Wed 9/9

7:05 am-1:55 pm

1 stop7h 50m

$773

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Mexico City 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 typical price of a round-trip flight between Mexico City and St. Louis?

Prices are currently low for flights on this route.

Typical prices usually range from $522 to $770.
The lowest price recently found on this route was $397.

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

In general, May is the cheapest month to fly from Mexico City to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $477. The month of September is another great option to travel to St. Louis, with average flight prices from Mexico City averaging around $507.

How have Mexico City to St. Louis flight prices changed over time?

As of August 2026, prices for Mexico City to St. Louis flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from Mexico City to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Mexico City to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Mexico City to St. Louis (MEX to STL) flight deals and tips

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

Best Price Found

$188

Fastest flight time

9h 22m

Direct flights

None
The best one-way flight to St. Louis from Mexico City in the past 72 hours is $188. The best round-trip flight deal from Mexico City to St. Louis found on momondo in the last 72 hours is $397.
The fastest flight from Mexico City to St. Louis takes 9h 22m
There are no direct flights from Mexico City to St. Louis. There are no popular flight routes from Mexico City to St. Louis.
Search flight deals

Frequently asked questions about flying from Mexico City to St. Louis

  • How far is Mexico City Benito Juarez to Lambert-St Louis by plane?

    The distance between Mexico City Benito Juarez and Lambert-St Louis is about 1430.3 mi. A reasonable flight in good conditions will take 9h 22m.

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

    Prices for flights from Mexico City Benito Juarez Airport to Lambert-St Louis Airport were last updated today.

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

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

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

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Mexico City to St. Louis?

Best airlines flying from Mexico City to St. Louis

Compare and see reviews for airlines that fly from Mexico City to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $466Free CancellationRating
7.4
10,104 reviews
Search United Airlines flights
DeltaPriceFrom $521Free CancellationRating
7.8
8,500 reviews
Search Delta 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
Fairview Heights
Maryland Heights
St. Peters
Hermann
Collinsville
Florissant
Alton
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

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

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

Yes. All flights to St. Louis from Mexico City on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to St. Louis from Mexico City. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Mexico City to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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