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

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The best prices from Lambert-St Louis to Mexico City Benito Juarez are usually found in September or October, booked 38 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

How to find the cheapest flight from
St. Louis (STL) to Mexico City (MEX)

All the information you need to plan the best STL to MEX flight in 2021: compare St. Louis to Mexico City flight prices with the expected peak season, weather and rainfall in Mexico City.
STL - MEX
Price
$350 - $580
MEX
Temperature
55.4 - 66.2 °F
MEX
Precipitation
0 - 4.7 inches

Popular in

December

High demand for flights, 24% potential price rise

Cheapest in

September

Best time to find cheap flights, 20% potential price drop

Average price

$580

Average for round-trip flights in December 2021

Round-trip from

$350

From Lambert-St Louis to Mexico City Benito Juarez

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest month to fly from St. Louis to Mexico City?

September is one of the best times of the year to fly to Mexico City from St. Louis. Prices for September average $440 per person but you can even find prices for as low as $296. The most expensive prices can be found in the month of December. Opting for a September flight can save you 31% on your journey compared to booking in September

When is the cheapest time to fly from St. Louis to Mexico City (STL - MEX)?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Mexico City at noon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the morning.

How far in advance should I book a flight from St. Louis to Mexico City?

To save on the cost of your flight from St. Louis to Mexico City, book at least 37 days before your planned departure. Booking around this time can save you about 14% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $465 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $552.

What is the cheapest day to fly round-trip from St. Louis to Mexico City?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 14% when planning your travel around this day of the week.

Cheap flights from St. Louis to Mexico City in December, January 2022

The best prices found for STL to MEX flights for December, January
28 Jan - 31 Jan
$252pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
28 Jan - 31 Jan
$253pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
29 Jan - 14 Feb
$263pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis to Mexico City 2022 flight deals

Cheap flights to Mexico City from St. Louis found for this year
30 Dec - 16 Jan
$314pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
24 Dec - 16 Jan
$339pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
24 Dec - 18 Jan
$343pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

Last minute flights from St. Louis to Mexico City

Late deals on round-trip flights to Mexico City from St. Louis, departing today and this week
15 Dec - 17 Jan
$349pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
15 Dec - 17 Jan
$401pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
10 Dec - 17 Dec
$430pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
MEX
Mexico City Benito Juarez
MEX
Mexico City Benito Juarez
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis

One-way flights to Mexico City from St. Louis

The cheapest one-way flights from St. Louis to Mexico City
1:36 pm - 4:50 am
American Airlines
1 Stop
15h 14m
STL - MEX
American Airlines
3:45 am - 5:00 am
United Airlines
2 Stops
25h 15m
STL - MEX
United Airlines
$678
United
1:00 am - 2:40 pm
Aeromexico
2 Stops
13h 40m
STL - MEX
Aeromexico

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Mexico City</span> flights.

Flight FAQs

From St. Louis to Mexico City

Which airlines flying from Lambert-St Louis to Mexico City Benito Juarez have flexible cancellations due to COVID-19?

Some of our airline partners flying from Lambert-St Louis to Mexico City Benito Juarez have new flexible policies in place due to COVID-19. American Airlines, United Airlines, and Aeromexico are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from St. Louis to Mexico City for under $300 on Cheapflights?

Yes, there are multiple flights from St. Louis to Mexico City for under $300. The cheapest flight booked recently is on Multiple Airlines for just $252, but on average you can expect to pay $301.

Are there last-minute flights available from St. Louis to Mexico City for under $400?

There are currently 20+ open flights from St. Louis to Mexico City within the next 7 days for less than $400.

How popular is this St. Louis to Mexico City flight route?

This flight path from Lambert-St Louis to Mexico City Benito Juarez was viewed by 30 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines to fly from St. Louis to Mexico City one-way?

For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $573. Users have also found prices from $593 and $838 on United Airlines and Aeromexico, respectively.

What are the cheapest flights from St. Louis to Mexico City?

On average you can expect to pay $573 for a flight from St. Louis to Mexico City. The cheapest flight overall is $197 while the most popular route, (Lambert-St Louis - Mexico City Benito Juarez) is currently priced at $252.

What are the most popular airlines that fly from St. Louis to Mexico City?

Consider Major Airline, American Airlines or Aeromexico when booking your flight. These represent the most popular airlines when flying from St. Louis to Mexico City.

COVID Restrictions

View COVID Travel Restrictions for Mexico City, Mexico

Do I need a COVID test to fly to Mexico City from St. Louis?

Information is based on travel restrictions from Lambert-St Louis to Mexico City Benito Juarez

Most visitors from Lambert-St Louis can enter Mexico City Benito Juarez without restrictions.

COVID-19 testing requirements
Visitors from Lambert-St Louis are not required to present a negative COVID-19 PCR test or antigen result upon entering Mexico City Benito Juarez.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Mexico City Benito Juarez.

Documents
Health Declaration Form - Completed form should be presented upon arrival


Do I need a test to fly back to St. Louis from Mexico City?

Returning to Lambert-St Louis from Mexico City Benito Juarez

COVID-19 testing requirements
Visitors from Mexico City Benito Juarez must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Mexico City Benito Juarez are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Mexico City, Mexico

Alternative routes for St. Louis to Mexico City

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Mexico City

Things to know before you go - useful duration and weather info for your trip from St. Louis to Mexico City.
Today's exchange rate
$1 = $21.22
Average temperature for December in Mexico City
71.6 °F
Avg rainfall for December in Mexico City
0.0 ″

Airports servicing St. Louis

Airports servicing Mexico City

Top 5 airlines flying from Lambert-St Louis to Mexico City Benito Juarez

The chart below displays the airlines Cheapflights users traveling from St. Louis to Mexico City choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$151 $409 No cancel fee N/A
Aeromexico
$155 $376 No cancel fee N/A
American Airlines
$197 $452 No cancel fee 71%
United Airlines
$208 $416 No cancel fee 69%
Frontier
$328 $393 No cancel fee 62%
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