STL - MEX

$155 Find Cheap Flights from St. Louis to Mexico City - Compare and Save

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Everything you should know

Cheapest round-trip
$357
Typical prices: $599-$777
Frontier
Sat 10/6Sat 10/13
STL - MEX • 1 stop
Cheapest one-way
$155
Typical prices: $306-$417
Multiple Airlines
Fri 10/19
STL - MEX • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Mexico City. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
When to travel
April
Cheapest • 18% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cancun (CUN)
Cheapest • Avg $485 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 6h 30m (one-way)
Insights
Insights
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We hope you love your trip to Mexico City!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Mexico City (STL-MEX)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Tue, Oct 6 - Tue, Oct 13
Frontier Logo
12:17 pm - 9:45 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
10h 28m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:45 pm - 2:25 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
16h 40m1 stop Cancun
$357Frontier
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
6:35 pm - 10:15 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
28h 40m2 stops Atlanta Hartsfield-Jackson Houston George Bush Intcntl
Multiple Airlines Logo
11:05 am - 11:13 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
11h 08m1 stop Orlando
$357Multiple Airlines
Sat, Oct 31 - Sat, Nov 7
Frontier Logo
6:20 am - 7:55 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
14h 35m1 stop Cancun
Frontier Logo
12:05 pm - 12:33 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
24h 28m1 stop Las Vegas Harry Reid Intl
$373Frontier
Wed, Jan 6 - Tue, Jan 12
American Airlines Logo
8:15 pm - 1:20 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
17h 05m1 stop Chicago O'Hare Intl
American Airlines Logo
6:40 am - 5:22 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
10h 42m1 stop Miami
$569American Airlines
Thu, Feb 18 - Tue, Feb 23
American Airlines Logo
5:00 am - 7:38 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
14h 38m1 stop Dallas/Fort Worth
American Airlines Logo
7:30 am - 6:11 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
10h 41m1 stop Dallas/Fort Worth
$569American Airlines
Thu, Feb 18 - Tue, Feb 23
American Airlines Logo
11:19 am - 12:10 amSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
12h 51m1 stop Miami
American Airlines Logo
7:30 am - 6:11 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
10h 41m1 stop Dallas/Fort Worth
$569American Airlines
Fri, Dec 11 - Tue, Dec 15
Delta Logo
12:31 pm - 9:40 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
9h 09m2 stops Minneapolis St Paul Houston George Bush Intcntl
Delta Logo
9:40 am - 11:26 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
13h 46m2 stops Austin Bergstrom Minneapolis St Paul
$604Delta
Fri, Dec 11 - Tue, Dec 15
Delta Logo
12:31 pm - 9:40 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
9h 09m2 stops Minneapolis St Paul Houston George Bush Intcntl
Delta Logo
7:05 am - 4:43 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
9h 38m1 stop Atlanta Hartsfield-Jackson
$604Delta
Mon, Nov 2 - Sun, Nov 8
United Airlines Logo
11:00 am - 4:50 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
5h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
3:30 pm - 10:26 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
6h 56m1 stop Houston George Bush Intcntl
$719United Airlines
Sun, Oct 11 - Sat, Oct 17
United Airlines Logo
6:15 am - 10:45 amSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
5h 30m1 stop Houston George Bush Intcntl
United Airlines Logo
4:40 am - 4:37 pmMEX  Mexico City Benito Juarez-STL Lambert-St Louis
10h 57m2 stops Houston George Bush Intcntl Denver Intl
$737United Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Mexico City flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Mexico City with more confidence.

How much is a round-trip flight from St. Louis to Mexico City?

Round-trip flights from St. Louis to Mexico City start at $357. Prices are below average for this route right now, with typical round-trip fares ranging from $599 to $777. The lowest price found in the past 5 days was $357 on Frontier.

What's the cheapest day of the week to fly from St. Louis to Mexico City?

Monday is the cheapest day of the week to fly from St. Louis to Mexico City, it is 6% cheaper than the average day. Sunday is the most expensive day with flight prices 14% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from St. Louis to Mexico City?

  • April is the cheapest month to fly from St. Louis to Mexico City at $572 round-trip.
  • August ($750) and December ($730) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 31% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from St. Louis to Mexico City the cheapest?

Flights from St. Louis to Mexico City are cheapest 5 weeks before departure. Booking in this window typically costs about 31% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for St. Louis to Mexico City flights

Low season

May

Cheapest flight

$155
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Mexico City

When to book flights from St. Louis to Mexico City

Are your dates flexible? Find out the best times to travel from St. Louis to Mexico City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Mexico City flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from St. Louis to Mexico City?

    Flights from St. Louis to Mexico City usually depart from Lambert-St Louis (STL) and arrive at Mexico City Benito Juarez (MEX).

  • What cabin classes can I book on flights from St. Louis to Mexico City?

    Two cabin classes are available on flights from St. Louis to Mexico City:

    • Economy Class
    • First Class

  • Which airports do connecting flights from St. Louis to Mexico City pass through?

    One-stop flights from St. Louis to Mexico City most commonly connect through:

    • Houston George Bush Intcntl (IAH) - 45% of one-stop connections
    • Dallas/Fort Worth (DFW) - 41% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 11% of one-stop connections
    • Cancun (CUN) - 4% of one-stop connections

    Houston George Bush Intcntl (IAH) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from St. Louis to Mexico City?

    Yes. Being flexible with your travel dates can save you up to 18% on the St. Louis to Mexico City route. Monday is the cheapest departure day at $653 round-trip on average, while Sunday is the most expensive at $792, a difference of $139. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Mexico City?

    Some of the most popular sights in Mexico City are Zona Rosa, Plaza de la Constitucion and El Ángel de la Independencia. These are among the most viewed places in Mexico City on KAYAK.

  • How expensive are last-minute St. Louis to Mexico City flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 13% above the route average of $694. Book 5 weeks before departure for the lowest fares.

  • How long is a flight from St. Louis to Mexico City?

    A nonstop flight from St. Louis to Mexico City takes 0h 00m, covering 1,431 miles.

  • Do I need a passport to fly from St. Louis to Mexico City?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from St. Louis to Mexico City looking right now?

    One-way fares from St. Louis to Mexico City are currently lower than usual. Average one-way flight prices are about $214, which is 42% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from St. Louis to Mexico City?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 6h 30m, compared with 6h 48m via Houston George Bush Intcntl (IAH) and 7h 05m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between St. Louis and Mexico City?

    Mexico City is 1 hour behind St. Louis (Central Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Mexico City Benito Juarez Airport (MEX)?

    Mexico City Benito Juarez Airport (MEX) hosts 5 major car rental companies, with daily rates starting from around $1 for economy cars. Top options include:
    · Budget
    · Infinity Car Rental
    · Europcar
    · MEXRENTACAR
    · America Car Rental

  • How much should I expect to pay for a St. Louis to Mexico City flight?

    Round-trip flights from St. Louis to Mexico City range from $599 to $777, with an average of $694 over the past 12 months. Anything below $599 counts as a good deal.

Your guide to booking St. Louis to Mexico City flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Sunday. On this route, Monday flights average $653 - about $139 less than Sunday (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 31% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your St. Louis to Mexico City trip for April. Fares historically average $572 round-trip in that month - typically $178 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Mexico City Benito Juarez Airport.
    - Camino Real Aeropuerto Mexico
    - NH Collection Mexico City Airport T2
    - Courtyard by Marriott Mexico City Airport

Everything you need to know for your flight from St. Louis to Mexico City

Information on your arrival and departure airports

St. Louis (STL)
Mexico City (MEX)