Mexico City

$176+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
Apr 22 — Apr 291
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lambert-St Louis to Mexico City Benito Juarez are usually found in May or January, booked 77 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Cheap 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$410
(Kiwi.com)

One-way from

$176
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$596
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. 5% potential increase in price ($34 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find 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 April 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/148:15 pmSTL - MEX
2 stops27h 25mMultiple Airlines
Wed 5/2111:05 amMEX - STL
1 stop11h 39mMultiple Airlines
Deal found 4/15$410
This Air Canada deal was found by Cheapflights users on 4/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/112:30 pmSTL - MEX
1 stop9h 45mAir Canada
Sat 5/177:10 amMEX - STL
1 stop11h 48mAir Canada
Deal found 4/16$427
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:00 amSTL - MEX
2 stops9h 15mDelta
Mon 5/58:50 amMEX - STL
2 stops11h 46mDelta
Deal found 4/16$488
This Aeromexico deal was found by Cheapflights users on 4/16. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:10 amSTL - MEX
1 stop7h 45mAeromexico
Mon 5/59:50 amMEX - STL
2 stops10h 46mAeromexico
Deal found 4/16$505
This Frontier deal was found by Cheapflights users on 4/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/152:36 pmSTL - MEX
2 stops20h 59mFrontier
Fri 6/2711:05 amMEX - STL
1 stop11h 48mFrontier
Deal found 4/15$555
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:10 pmSTL - MEX
1 stop16h 53mAmerican Airlines
Sun 8/315:00 amMEX - STL
1 stop10h 08mAmerican Airlines
Deal found 4/17$573
This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/288:20 amSTL - MEX
1 stop15h 50mUnited Airlines
Mon 9/14:40 amMEX - STL
1 stop13h 18mUnited Airlines
Deal found 4/16$628
This WestJet deal was found by Cheapflights users on 4/15. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1511:17 amSTL - MEX
2 stops38h 41mWestJet
Thu 6/261:55 amMEX - STL
2 stops35h 41mWestJet
Deal found 4/15$1,197
This Avianca deal was found by Cheapflights users on 4/16. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/309:39 amSTL - MEX
2 stops18h 26mAvianca
Sun 5/412:40 amMEX - STL
2 stops17h 43mAvianca
Deal found 4/16$4,613

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 April 17, 2025.
Use the filters below to find and compare flights from St. Louis to Mexico City that are best for you.

Fly from

St. Louis

Fly to

Mexico City

Route

Depart

Return

Price

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Wed 5/14

8:15 pm-10:40 pm

2 stops27h 25m

Mexico City Benito Juarez

Wed 5/21

11:05 am-11:44 pm

1 stop11h 39m

$410

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Sun 5/11

2:30 pm-11:15 pm

1 stop9h 45m

Mexico City Benito Juarez

Sat 5/17

7:10 am-7:58 pm

1 stop11h 48m

$427

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Thu 5/1

6:00 am-2:15 pm

2 stops9h 15m

Mexico City Benito Juarez

Mon 5/5

8:50 am-9:36 pm

2 stops11h 46m

$488

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Fri 5/30

6:00 am-2:20 pm

2 stops9h 20m

Mexico City Benito Juarez

Sun 6/8

7:05 am-4:18 pm

1 stop8h 13m

$541

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Sun 6/15

2:36 pm-10:35 am

2 stops20h 59m

Mexico City Benito Juarez

Fri 6/27

11:05 am-11:53 pm

1 stop11h 48m

$555

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Thu 7/3

5:25 am-8:15 pm

1 stop15h 50m

Mexico City Benito Juarez

Sun 7/13

5:35 am-12:29 am

1 stop17h 54m

$577

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Sun 6/1

6:15 am-10:45 am

1 stop5h 30m

Mexico City Benito Juarez

Sun 6/1

2:15 pm-10:15 pm

1 stop7h 00m

$928

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Sun 6/15

11:17 am-12:58 am

2 stops38h 41m

Mexico City Benito Juarez

Thu 6/26

1:55 am-2:36 pm

2 stops35h 41m

$1,197

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Wed 4/30

9:39 am-3:05 am

2 stops18h 26m

Mexico City Benito Juarez

Sun 5/4

12:40 am-7:23 pm

2 stops17h 43m

$4,613

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

Fri 5/2

6:53 pm-10:40 pm

2 stops28h 47m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 12 results
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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Trip.comPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Mexico City flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 11, 2025.

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 77 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 $400). Flying from St. Louis to Mexico City in December is currently the most expensive (average of $615). 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.

What is the cheapest time of day to fly from STL to MEX?

Find hourly flight availability from St. Louis to Mexico City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

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 9% on your trip compared to booking a flight in the afternoon.

Rainfall in Mexico City by month

Plan your trip to Mexico City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Mexico City ranges from 0.0 - 4.7 inches per month. July is typically the wettest month, when rainfall can reach 4.7 in. January is typically the driest time to visit Mexico City when rainfall is around 0.0 in.

Temperature in Mexico City by month

Plan your trip to Mexico City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Mexico City, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 55.4 F).

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 April 17, 2025.
8.0
Very good

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

    Air Canada, at $427, was found to be the cheapest airline from St. Louis to Mexico City.Alternate airlines to your destination round-trip include Delta and Aeromexico. These flights start at 32% lower than the current average price 3 months from now.

  • 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 $400). Flying from St. Louis to Mexico City in December is currently the most expensive (average of $615). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Valle de Bravo
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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$471Average$616FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$487Average$523FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$511Average$648FlexibilityNo cancel feeOn-time69%
DeltaCheapest$514Average$587FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$525Average$634FlexibilityNo cancel feeOn-time71%

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