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Cheap flights from Mexico City to St. Louis from $215

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 7/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Volaris Logo
8:45 pm - 2:23 pm
MEX
-
STL
16h 38m
1 stop
Volaris Logo
6:34 am - 4:40 pm
STL
-
MEX
11h 06m
1 stop
$429Volaris
Thu, Jul 23 - Thu, Aug 13
Volaris Logo
8:45 pm - 2:23 pm
MEX
-
STL
16h 38m
1 stop
Volaris Logo
6:34 am - 4:40 pm
STL
-
MEX
11h 06m
1 stop
$430Volaris
Thu, Jul 23 - Thu, Aug 13
Volaris Logo
8:40 am - 7:23 pm
MEX
-
STL
9h 43m
1 stop
Volaris Logo
6:34 am - 4:40 pm
STL
-
MEX
11h 06m
1 stop
$449Volaris
Thu, Aug 6 - Mon, Aug 10
Volaris Logo
8:40 am - 7:23 pm
MEX
-
STL
9h 43m
1 stop
Volaris Logo
6:34 am - 4:40 pm
STL
-
MEX
11h 06m
1 stop
$451Volaris
Thu, Aug 6 - Mon, Aug 10
Volaris Logo
8:40 am - 7:23 pm
MEX
-
STL
9h 43m
1 stop
Volaris Logo
6:34 am - 4:40 pm
STL
-
MEX
11h 06m
1 stop
$455Volaris
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
7:00 am - 2:56 pm
MEX
-
STL
6h 56m
1 stop
Multiple Airlines Logo
5:27 pm - 10:45 pm
STL
-
MEX
6h 18m
1 stop
$462Multiple Airlines
Sat, Aug 15 - Thu, Aug 27
Volaris Logo
8:40 am - 7:23 pm
MEX
-
STL
9h 43m
1 stop
Volaris Logo
6:34 am - 4:40 pm
STL
-
MEX
11h 06m
1 stop
$470Volaris
Thu, Aug 6 - Mon, Aug 10
Volaris Logo
8:40 am - 7:23 pm
MEX
-
STL
9h 43m
1 stop
Volaris Logo
6:34 am - 11:10 pm
STL
-
MEX
17h 36m
1 stop
$471Volaris
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
7:00 am - 5:44 pm
MEX
-
STL
9h 44m
1 stop
Multiple Airlines Logo
10:35 am - 10:45 pm
STL
-
MEX
13h 10m
2 stops
$474Multiple Airlines
Thu, Sep 10 - Sat, Sep 12
Multiple Airlines Logo
6:20 am - 8:57 am
MEX
-
STL
25h 37m
2 stops
Multiple Airlines Logo
3:41 pm - 10:45 pm
STL
-
MEX
8h 04m
1 stop
$479Multiple Airlines
Thu, Jul 23 - Thu, Aug 13

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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
Sep 10
MEX4:10 pmMexico City Benito Juarez
26h 05m
2 stops
STL7:15 pmLambert-St Louis
Sep 12
STL10:35 amLambert-St Louis
36h 40m
2 stops
MEX10:15 pmMexico City Benito Juarez
$555
Frontier
Jul 23
MEX8:40 amMexico City Benito Juarez
9h 43m
1 stop
STL7:23 pmLambert-St Louis
Aug 13
STL3:41 pmLambert-St Louis
8h 04m
1 stop
MEX10:45 pmMexico City Benito Juarez
$580
Frontier
Aug 6
MEX7:10 amMexico City Benito Juarez
35h 13m
2 stops
STL7:23 pmLambert-St Louis
Aug 10
STL8:08 pmLambert-St Louis
27h 07m
2 stops
MEX10:15 pmMexico City Benito Juarez
$603

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 13
MEX4:40 amMexico City Benito Juarez
8h 30m
1 stop
STL2:10 pmLambert-St Louis
Oct 17
STL5:10 amLambert-St Louis
9h 05m
2 stops
MEX1:15 pmMexico City Benito Juarez
$570
United Airlines
Oct 13
MEX4:40 amMexico City Benito Juarez
8h 30m
1 stop
STL2:10 pmLambert-St Louis
Oct 17
STL3:12 pmLambert-St Louis
8h 58m
1 stop
MEX11:10 pmMexico City Benito Juarez
$571
United Airlines
Oct 13
MEX4:40 amMexico City Benito Juarez
8h 30m
1 stop
STL2:10 pmLambert-St Louis
Oct 17
STL5:10 amLambert-St Louis
9h 05m
2 stops
MEX1:15 pmMexico City Benito Juarez
$572

momondo Fare Finder

 
Customize your flight search to find flights from Mexico City 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 July 3, 2026.
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 - STL

MEXSTL

Mexico City Benito Juarez

Thu 7/23

8:45 pm-2:23 pm

1 stop16h 38m

Lambert-St Louis

Thu 8/13

6:34 am-4:40 pm

1 stop11h 06m

$429

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 7/23

8:45 pm-2:23 pm

1 stop16h 38m

Lambert-St Louis

Thu 8/13

6:34 am-4:40 pm

1 stop11h 06m

$430

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 8/6

8:40 am-7:23 pm

1 stop9h 43m

Lambert-St Louis

Mon 8/10

6:34 am-4:40 pm

1 stop11h 06m

$449

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 8/6

8:40 am-7:23 pm

1 stop9h 43m

Lambert-St Louis

Mon 8/10

6:34 am-4:40 pm

1 stop11h 06m

$451

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 8/6

8:40 am-7:23 pm

1 stop9h 43m

Lambert-St Louis

Mon 8/10

6:34 am-4:40 pm

1 stop11h 06m

$455
Quickest round-trip

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 8/15

7:00 am-2:56 pm

1 stop6h 56m

Lambert-St Louis

Thu 8/27

5:27 pm-10:45 pm

1 stop6h 18m

$462

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 8/6

8:40 am-7:23 pm

1 stop9h 43m

Lambert-St Louis

Mon 8/10

6:34 am-4:40 pm

1 stop11h 06m

$470

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 8/6

8:40 am-7:23 pm

1 stop9h 43m

Lambert-St Louis

Mon 8/10

6:34 am-11:10 pm

1 stop17h 36m

$471

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 9/10

7:00 am-5:44 pm

1 stop9h 44m

Lambert-St Louis

Sat 9/12

10:35 am-10:45 pm

2 stops13h 10m

$474

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 7/23

6:20 am-8:57 am

2 stops25h 37m

Lambert-St Louis

Thu 8/13

3:41 pm-10:45 pm

1 stop8h 04m

$479

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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?

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 July 2026, prices for Mexico City to St. Louis flights are approximately 28% 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

Fastest flight time

6h 46m

Direct flights

None
The fastest flight from Mexico City to St. Louis takes 6h 46m
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 6h 46m.

  • 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
9,926 reviews
Search United Airlines flights
DeltaPriceFrom $521Free CancellationRating
7.8
8,452 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
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Fenton
Farmington
Wentzville
Clayton
Festus
Eureka
Litchfield
Edwardsville
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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