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Cheap flights from Mexico City to St. Louis from $241

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 City to St. Louis departing on 5/15. 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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Find the cheapest flights from Mexico City to St. Louis

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Mexico City to St. Louis.
 Logo
5:30 am - 4:00 pmMEX-STL
9h 30m1 stop
 Logo
1:30 pm - 10:55 pmSTL-MEX
10h 25m1 stop
Mon, May 5 - Fri, May 16
Frontier Logo
11:05 am - 12:06 amMEX-STL
12h 01m1 stop
Frontier Logo
8:44 pm - 10:55 pmSTL-MEX
27h 11m1 stop
$429Frontier
Find Deal
Thu, May 15 - Sun, Jun 15
 Logo
6:00 am - 9:05 pmMEX-STL
14h 05m2 stops
 Logo
8:44 pm - 10:55 pmSTL-MEX
27h 11m1 stop
Thu, May 15 - Sun, Jun 15
Frontier Logo
11:05 am - 11:47 pmMEX-STL
11h 42m1 stop
Frontier Logo
2:36 pm - 10:35 amSTL-MEX
20h 59m2 stops
$466Frontier
Find Deal
Thu, Jul 17 - Sun, Aug 3
Aeromexico Logo
9:50 am - 9:36 pmMEX-STL
10h 46m2 stops
Aeromexico Logo
1:09 pm - 8:45 pmSTL-MEX
8h 36m1 stop
$469Aeromexico
Find Deal
Mon, May 5 - Fri, May 16
Delta Logo
11:10 am - 9:34 pmMEX-STL
9h 24m1 stop
Delta Logo
6:00 am - 1:55 pmSTL-MEX
8h 55m1 stop
$520Delta
Find Deal
Tue, Jun 10 - Sat, Jul 26
Delta Logo
7:50 am - 8:49 pmMEX-STL
11h 59m2 stops
Delta Logo
6:00 am - 4:00 pmSTL-MEX
11h 00m2 stops
$541Delta
Find Deal
Thu, Oct 9 - Thu, Oct 23
Aeromexico Logo
1:10 pm - 11:40 pmMEX-STL
9h 30m1 stop
Aeromexico Logo
6:00 am - 11:50 amSTL-MEX
6h 50m1 stop
$545Aeromexico
Find Deal
Sat, Jun 7 - Sat, Jun 14
Air Canada Logo
7:10 am - 7:57 pmMEX-STL
11h 47m1 stop
Air Canada Logo
4:05 pm - 11:15 pmSTL-MEX
8h 10m1 stop
$646Air Canada
Find Deal
Thu, Oct 9 - Thu, Oct 23
Air Canada Logo
12:15 am - 7:33 pmMEX-STL
18h 18m1 stop
Air Canada Logo
9:15 am - 11:15 pmSTL-MEX
15h 00m1 stop
$652Air Canada
Find Deal
Wed, Oct 8 - Thu, Oct 23

Frontier flights from Mexico City to St. Louis

Our best Frontier deals on Mexico City to St. Louis flight tickets
Frontier
May 15
MEX11:05 amMexico City Benito Juarez
12h 01m
1 stop
STL12:06 amLambert-St Louis
Jun 15
STL8:44 pmLambert-St Louis
27h 11m
1 stop
MEX10:55 pmMexico City Benito Juarez
Frontier
Jul 17
MEX11:05 amMexico City Benito Juarez
11h 42m
1 stop
STL11:47 pmLambert-St Louis
Aug 3
STL2:36 pmLambert-St Louis
20h 59m
2 stops
MEX10:35 amMexico City Benito Juarez
Frontier
May 15
MEX7:55 amMexico City Benito Juarez
12h 10m
2 stops
STL9:05 pmLambert-St Louis
Jun 15
STL8:44 pmLambert-St Louis
21h 46m
2 stops
MEX5:30 pmMexico City Benito Juarez

Air Canada flights from Mexico City to St. Louis

Our best Air Canada deals on Mexico City to St. Louis flight tickets
Air Canada
Oct 9
MEX7:10 amMexico City Benito Juarez
11h 47m
1 stop
STL7:57 pmLambert-St Louis
Oct 23
STL4:05 pmLambert-St Louis
8h 10m
1 stop
MEX11:15 pmMexico City Benito Juarez
Air Canada
Oct 8
MEX12:15 amMexico City Benito Juarez
18h 18m
1 stop
STL7:33 pmLambert-St Louis
Oct 23
STL9:15 amLambert-St Louis
15h 00m
1 stop
MEX11:15 pmMexico City Benito Juarez
Air Canada
May 11
MEX12:15 amMexico City Benito Juarez
11h 21m
1 stop
STL12:36 pmLambert-St Louis
May 16
STL1:30 pmLambert-St Louis
10h 25m
1 stop
MEX10:55 pmMexico City Benito Juarez

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 cheapest month to fly to St. Louis?

In general, March 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 $449. The month of August is another great option to travel to St. Louis, with average flight prices from Mexico City averaging around $502.

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 $465. 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 Saturday because tickets tend to average around $778. 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 City at noon is the least expensive time of day to depart. momondo users have found prices as low as $465 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $695 per ticket.

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

As of April 2025, prices for Mexico City to St. Louis flights are approximately 10% cheaper 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

$241

Fastest flight time

9h 10m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Mexico City in the past 72 hours is $241. The best round-trip flight deal from Mexico City to St. Louis found on momondo in the last 72 hours is $428.
The fastest flight from Mexico City to St. Louis takes 9h 10m
There are no direct flights from Mexico City to St. Louis. Popular non-direct route for this connection is Mexico City Benito Juarez Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • 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 10m.

  • 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 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.


Traveling to a place near St. Louis?

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

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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