Mexico City

$187+ Cheap flights from St. Louis (STL) to Mexico City (MEX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
Apr 9 — Apr 161
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1. Tell us where you want to go

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Cheap flight deals from St. Louis to Mexico City

Cheapest flights from St. Louis to Mexico City
Explore the most affordable flight options available from St. Louis to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:17 pm
STL
-
MEX
1 stop22h 13m
Multiple Airlines
Sat 5/96:20 am
MEX
-
STL
2 stops11h 52m
Multiple Airlines
Deal found 3/5$370
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:17 pm
STL
-
MEX
2 stops24h 48m
Multiple Airlines
Sat 4/258:40 am
MEX
-
STL
1 stop9h 52m
Multiple Airlines
Deal found 3/5$383
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:17 pm
STL
-
MEX
1 stop22h 13m
Multiple Airlines
Fri 4/2410:45 pm
MEX
-
STL
2 stops19h 47m
Multiple Airlines
Deal found 3/9$391
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:17 pm
STL
-
MEX
1 stop22h 13m
Multiple Airlines
Mon 4/276:20 am
MEX
-
STL
2 stops47h 30m
Multiple Airlines
Deal found 3/5$395
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:12 pm
STL
-
MEX
2 stops24h 53m
Multiple Airlines
Thu 5/78:40 am
MEX
-
STL
1 stop9h 32m
Multiple Airlines
Deal found 3/7$410
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:59 pm
STL
-
MEX
1 stop27h 46m
Multiple Airlines
Tue 4/286:20 am
MEX
-
STL
2 stops23h 30m
Multiple Airlines
Deal found 3/7$426

Find flight deals from St. Louis to Mexico City

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Mexico City (MEX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$370
(Kiwi.com)

One-way from

$187
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$667
Provider with most accurate pricing for Lambert-St Louis-Mexico City Benito Juarez flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Mexico City Benito Juarez flights.
From Lambert-St Louis to Mexico City Benito Juarez
One-way flight from Lambert-St Louis to Mexico City Benito Juarez
Highest demand for flights based on searches. 13% potential increase in price ($99 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Mexico City 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, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from St. Louis to Mexico City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Tue 4/7

11:21 am-12:20 pm

2 stops25h 59m

Mexico City Benito Juarez

Tue 4/14

11:05 am-11:19 pm

1 stop11h 14m

$462

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Tue 4/21

6:00 am-4:40 pm

1 stop11h 40m

Mexico City Benito Juarez

Tue 4/28

8:45 pm-3:19 pm

1 stop17h 34m

$482
Quickest round-trip

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Tue 3/24

6:00 am-5:15 pm

1 stop12h 15m

Mexico City Benito Juarez

Sat 4/18

8:40 am-7:32 pm

1 stop9h 52m

$482

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Tue 4/21

4:59 pm-7:45 pm

1 stop27h 46m

Mexico City Benito Juarez

Tue 4/28

11:05 am-11:19 pm

1 stop11h 14m

$492

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Sat 4/18

8:17 pm-10:45 pm

2 stops27h 28m

Mexico City Benito Juarez

Sat 4/25

4:10 pm-7:21 pm

2 stops26h 11m

$510

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Sun 5/3

6:00 am-6:45 am

1 stop25h 45m

Mexico City Benito Juarez

Sat 5/9

8:40 am-7:12 pm

1 stop9h 32m

$512

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Fri 6/26

7:00 am-11:10 pm

1 stop17h 10m

Mexico City Benito Juarez

Mon 6/29

8:40 am-7:13 pm

1 stop9h 33m

$536

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Thu 5/21

10:55 am-10:45 pm

1 stop12h 50m

Mexico City Benito Juarez

Tue 5/26

4:10 pm-7:13 pm

2 stops26h 03m

$540

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Fri 5/22

10:55 am-10:45 pm

1 stop12h 50m

Mexico City Benito Juarez

Mon 5/25

11:05 pm-3:04 pm

1 stop14h 59m

$549
Cheapest one-way

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Wed 4/1

8:16 pm-8:05 pm

2 stops24h 49m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from St. Louis to Mexico City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Mexico City in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Mexico City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Mexico City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Mexico City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Mexico City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Mexico City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Mexico City

Have a flexible travel schedule? Discover the best time to fly to Mexico City from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Mexico City. Price data was last updated on March 6, 2026.

The price you pay for your flight from St. Louis to Mexico City may vary depending on when you book. For the best chance of a lower fare, look to book 7 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis to Mexico City?

Currently, May is the cheapest month in which you can book a flight from St. Louis to Mexico City (average of $438). Flying from St. Louis to Mexico City in August is currently the most expensive (average of $564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from St. Louis to Mexico City?

Reviews of airlines servicing Mexico City

Get insights into the airlines that provide service to Mexico City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Mexico City. Reviews last updated March 10, 2026.
See what other customers who have flown with Delta,United Airlines, andAeromexico from St. Louis to Mexico City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Mexico City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from St. Louis to Mexico City?

    For as low as $482, Volaris can have you in Mexico City from St. Louis in 11h 40m. The distance from St. Louis to Mexico City is about 1431 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from St. Louis to Mexico City round-trip?

    Frontier, at $476, was found to be the cheapest airline from St. Louis to Mexico City.Alternate airlines to your destination round-trip include Aeromexico and United Airlines. These flights start at 28% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $196. Users have also found prices from $198 and $324 on Air Canada and American Airlines, respectively.

  • Can I find deals for flights from St. Louis to Mexico City that include hotel bookings?

    Yes. In addition to deals on St. Louis to Mexico City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Mexico City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Mexico City.

  • Can I find deals for business class flights from St. Louis to Mexico City?

    Yes. Cheapflights offers flight deals from St. Louis to Mexico City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Mexico City?

    Currently, May is the cheapest month in which you can book a flight from St. Louis to Mexico City (average of $438). Flying from St. Louis to Mexico City in August is currently the most expensive (average of $564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Mexico City?

Book flights to Mexico City if you plan to visit one of these locations
Taxco

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Alternative routes for St. Louis to Mexico City

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

Top 5 airlines flying from St. Louis to Mexico City

Discover the top 5 airlines that operate flights from St. Louis to Mexico City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$476Average$500FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$487Average$579FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$487Average$624FlexibilityNo cancel feeOn-time69%
DeltaCheapest$487Average$572FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$538Average$677FlexibilityNo cancel feeOn-time71%

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