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Cheap flights from St. Louis to Mexico City from $182

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Mexico City departing on 5/21. 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
0 bags

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Find the cheapest flights from St. Louis to Mexico City

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Mexico City that have been recently found on momondo from popular airlines, departing in the coming months.
 Logo
1:30 pm - 10:55 pmSTL-MEX
10h 25m1 stop
 Logo
5:30 am - 4:00 pmMEX-STL
9h 30m1 stop
Tue, May 13 - Tue, May 20
Air Canada Logo
1:30 pm - 10:55 pmSTL-MEX
10h 25m1 stop
Air Canada Logo
7:10 am - 7:58 pmMEX-STL
11h 48m1 stop
$440Air Canada
Find Deal
Fri, May 16 - Wed, May 21
 Logo
5:45 pm - 7:35 pmSTL-MEX
26h 50m1 stop
 Logo
11:05 am - 11:52 pmMEX-STL
11h 47m1 stop
Sat, May 17 - Thu, May 22
Frontier Logo
6:38 am - 5:20 pmSTL-MEX
11h 42m1 stop
Frontier Logo
7:55 am - 9:05 pmMEX-STL
12h 10m2 stops
$486Frontier
Find Deal
Wed, May 14 - Mon, May 19
Delta Logo
6:00 am - 2:55 pmSTL-MEX
9h 55m2 stops
Delta Logo
8:40 am - 8:39 pmMEX-STL
10h 59m1 stop
$488Delta
Find Deal
Tue, May 13 - Tue, May 20
United Airlines Logo
6:30 am - 3:40 pmSTL-MEX
10h 10m2 stops
United Airlines Logo
2:15 pm - 10:15 pmMEX-STL
7h 00m1 stop
$505United Airlines
Find Deal
Sat, May 17 - Thu, May 22
Delta Logo
10:05 am - 10:05 pmSTL-MEX
13h 00m2 stops
Delta Logo
7:05 am - 6:01 pmMEX-STL
9h 56m1 stop
$509Delta
Find Deal
Fri, May 23 - Mon, May 26
Frontier Logo
5:45 pm - 10:35 amSTL-MEX
17h 50m2 stops
Frontier Logo
11:05 am - 11:37 pmMEX-STL
11h 32m1 stop
$530Frontier
Find Deal
Tue, May 27 - Tue, Jun 3
United Airlines Logo
11:05 am - 3:40 pmSTL-MEX
5h 35m1 stop
United Airlines Logo
4:40 am - 2:26 pmMEX-STL
8h 46m1 stop
$558United Airlines
Find Deal
Tue, Aug 19 - Sun, Aug 24
American Airlines Logo
5:25 am - 8:15 pmSTL-MEX
15h 50m1 stop
American Airlines Logo
5:00 am - 6:33 pmMEX-STL
12h 33m1 stop
$577American Airlines
Find Deal
Thu, Jul 3 - Sun, Jul 13

Air Canada flights from St. Louis to Mexico City

Our best Air Canada deals on St. Louis to Mexico City flight tickets
Air Canada
May 9
STL1:30 pmLambert-St Louis
10h 25m
1 stop
MEX10:55 pmMexico City Benito Juarez
Jun 4
MEX7:10 amMexico City Benito Juarez
11h 48m
1 stop
STL7:58 pmLambert-St Louis
Air Canada
May 23
STL7:30 amLambert-St Louis
28h 40m
1 stop
MEX11:10 amMexico City Benito Juarez
May 26
MEX7:10 amMexico City Benito Juarez
11h 48m
1 stop
STL7:58 pmLambert-St Louis
Air Canada
May 9
STL1:30 pmLambert-St Louis
10h 25m
1 stop
MEX10:55 pmMexico City Benito Juarez
Jun 13
MEX12:15 amMexico City Benito Juarez
11h 21m
1 stop
STL12:36 pmLambert-St Louis

Aeromexico flights from St. Louis to Mexico City

Our best Aeromexico deals on St. Louis to Mexico City flight tickets
Aeromexico
May 30
STL3:40 pmLambert-St Louis
6h 05m
1 stop
MEX8:45 pmMexico City Benito Juarez
Jun 8
MEX8:01 amMexico City Benito Juarez
11h 39m
2 stops
STL8:40 pmLambert-St Louis
Aeromexico
Jun 13
STL3:42 pmLambert-St Louis
6h 13m
1 stop
MEX8:55 pmMexico City Benito Juarez
Jun 29
MEX8:25 amMexico City Benito Juarez
11h 05m
2 stops
STL8:30 pmLambert-St Louis

See travel insights to Mexico City from

How to get the cheapest flight ticket from St. Louis to Mexico City

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 St. Louis and Mexico City?

What is the cheapest month to fly to Mexico City?

The cheapest month to fly to Mexico City from St. Louis is in May. Flight prices, which tend to average around $557, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Mexico City from St. Louis during January instead. Flights to Mexico City in January, while not as cheap as those in May, still average around $565.

What is the cheapest day to depart on your flight to Mexico City?

Our data shows that Tuesday is the least expensive day to fly to Mexico City. Tickets to fly out on this day can be as low as $542. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $669.

What is the cheapest time of day to depart on your flight to Mexico City?

According to our data, the cheapest time of day to fly to Mexico City is at noon. momondo users have found flights departing from St. Louis to Mexico City at noon for as low as $566. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Mexico City, so prices are often more expensive at around $621 per ticket.

How far in advance should I book a flight to Mexico City?

You are more likely to see cheaper flights to Mexico City from St. Louis when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to Mexico City for around $629 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Mexico City from St. Louis for as low as $566 on momondo.

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

As of April 2025, prices for St. Louis to Mexico City flights are approximately 39% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Mexico City

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

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

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

Best Price Found

$182

Fastest flight time

5h 35m

Direct flights

None

Airports in Mexico City

1 airport
The best one-way flight to Mexico City from St. Louis in the past 72 hours is $182. The best round-trip flight deal from St. Louis to Mexico City found on momondo in the last 72 hours is $428.
The fastest flight from St. Louis to Mexico City takes 5h 35m
There are no direct flights from St. Louis to Mexico City. Popular non-direct route for this connection is Lambert-St Louis Airport - Mexico City Benito Juarez Airport.
There is 1 airport near Mexico City: Mexico City Benito Juarez (MEX)

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

    There are 1430.3 mi between Lambert-St Louis and Mexico City Benito Juarez. By plane, this route typically takes 5h 35m.

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

    Prices for flights from Lambert-St Louis Airport to Mexico City Benito Juarez Airport are updated daily.

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

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

  • What documentation or ID do you need to fly to Mexico City Benito Juarez Airport?

    The travel and health documents you'll need for your trip to Mexico City Benito Juarez Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Mexico City Benito Juarez Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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


Best airlines flying from St. Louis to Mexico City

Compare and see reviews for airlines that fly from St. Louis to Mexico City with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $471Free CancellationRating
5.9
3,287 reviews
Search Frontier flights
AeromexicoPriceFrom $487Free CancellationRating
7.5
1,698 reviews
Search Aeromexico flights
United AirlinesPriceFrom $510Free CancellationRating
7.4
8,696 reviews
Search United Airlines flights
DeltaPriceFrom $514Free CancellationRating
8.0
7,934 reviews
Search Delta flights
American AirlinesPriceFrom $527Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Mexico City?

Book flights to Mexico City if you plan to visit one of these locations
Cuernavaca
Taxco
Tepoztlán
Valle de Bravo

Why use momondo?

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

Finding the right flight to Mexico City from St. Louis 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 Mexico City quick and easy, saving you time and money.

Can I find flights from St. Louis to Mexico City with flexible booking policies on momondo?

Flights from St. Louis to Mexico City with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential St. Louis to Mexico City flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Mexico City from St. Louis. 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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Mon 5/5
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Airports servicing Mexico City Federal District