HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$219+ Cheap flights from Mexico City (MEX) to St. Louis (STL)

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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — STL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Mexico City to St. Louis with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Mexico City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Mexico City (MEX) to St. Louis (STL). 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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$388
(Kiwi.com)

One-way from

$219
(OneTravel)

Popular in

March

Cheapest in

February

Average price

$623
Provider with most accurate pricing for Mexico City Benito Juarez-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Mexico City Benito Juarez-Lambert-St Louis flights.
Search Deals
From Mexico City Benito Juarez to Lambert-St Louis
Search Deals
One-way flight from Mexico City Benito Juarez to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Mexico City to St. Louis

Cheapest flights from Mexico City to St. Louis
Explore the most affordable flight options available from Mexico City to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/21. 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 2/411:10 amMEX - STL
1 stop12h 21mMultiple Airlines
Mon 2/107:09 pmSTL - MEX
1 stop23h 36mMultiple Airlines
Deal found 1/21$388
This Frontier deal was found by Cheapflights users on 1/21. 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.
Tue 2/411:10 amMEX - STL
2 stops22h 06mFrontier
Thu 2/66:25 amSTL - MEX
1 stop12h 20mFrontier
Deal found 1/21$409
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/47:50 amMEX - STL
1 stop7h 21mUnited Airlines
Tue 3/118:25 amSTL - MEX
1 stop13h 25mUnited Airlines
Deal found 1/20$500
This Air Canada deal was found by Cheapflights users on 1/21. 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.
Sat 2/11:10 amMEX - STL
1 stop13h 56mAir Canada
Mon 2/103:50 pmSTL - MEX
1 stop20h 35mAir Canada
Deal found 1/21$654
This Avianca deal was found by Cheapflights users on 1/21. 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.
Tue 2/412:55 pmMEX - STL
3 stops21h 29mAvianca
Tue 2/118:15 amSTL - MEX
2 stops18h 45mAvianca
Deal found 1/21$1,120
This WestJet deal was found by Cheapflights users on 1/21. 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.
Mon 2/31:15 amMEX - STL
2 stops33h 39mWestJet
Thu 2/65:30 pmSTL - MEX
2 stops45h 15mWestJet
Deal found 1/21$1,486

Find flights from Mexico City to St. Louis within your budget

Customize your flight search to find flights from Mexico City to St. Louis 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Tue 2/4

11:10 am-11:31 pm

1 stop12h 21m

Lambert-St Louis

Mon 2/10

7:09 pm-6:45 pm

1 stop23h 36m

$388

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Tue 2/4

11:10 am-9:16 am

2 stops22h 06m

Lambert-St Louis

Thu 2/6

6:25 am-6:45 pm

1 stop12h 20m

$409

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Tue 3/4

7:50 am-3:11 pm

1 stop7h 21m

Lambert-St Louis

Tue 3/11

8:25 am-8:50 pm

1 stop13h 25m

$500

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 2/1

1:10 am-3:06 pm

1 stop13h 56m

Lambert-St Louis

Mon 2/10

3:50 pm-12:25 pm

1 stop20h 35m

$654

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Tue 2/4

12:55 pm-10:24 am

3 stops21h 29m

Lambert-St Louis

Tue 2/11

8:15 am-3:00 am

2 stops18h 45m

$1,120

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Mon 2/3

1:15 am-10:54 am

2 stops33h 39m

Lambert-St Louis

Thu 2/6

5:30 pm-2:45 pm

2 stops45h 15m

$1,486

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Mon 1/27

4:35 am-2:57 pm

1 stop10h 22m

$219

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 3/1

11:10 am-11:43 pm

1 stop12h 33m

$235

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Fri 2/28

4:35 am-2:44 pm

1 stop10h 09m

$286

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 2/16

10:35 am-9:49 pm

2 stops11h 14m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 12 results
1
2

Compare providers for flights from Mexico City to St. Louis

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 Mexico City to St. Louis in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Mexico City-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Mexico City-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Mexico City-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Mexico City-St. Louis 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 Mexico City-St. Louis 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 Mexico City to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Mexico City 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.

Travel insights for flights from Mexico City to St. Louis

Get recent, data-driven insights about flights from Mexico City to St. Louis including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Mexico City to St. Louis (average of $311). Flying from Mexico City to St. Louis in March is currently the most expensive (average of $356). 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 MEX to STL?

Find hourly flight availability from Mexico City to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Mexico City to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 34% versus a flight in the afternoon.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 21, 2025.
Aeromexico
7.5
Good
1,849 reviews

Boarding

7.5

Crew

8.0

Entertainment

7.1

Overall

7.5

Comfort

7.6

Food

6.7

Reviews

1 / 10

You are a cheap airline - and I don’t mean well priced I mean miserable. That 4 1/2 hour plus flight was way below acceptable NO Food NO in flight entertainment NOt even a place to charge my own electronic devises All in a cheap aircraft with thin seats and very limited reclining I am done with Aeromexico

Aeromexico
7.5
Good
1,849 reviews
Aeromexico
7.5
Good
1,849 reviews

Boarding

7.5

Crew

8.0

Entertainment

7.1

Overall

7.5

Comfort

7.6

Food

6.7

Reviews

1 / 10

You are a cheap airline - and I don’t mean well priced I mean miserable. That 4 1/2 hour plus flight was way below acceptable NO Food NO in flight entertainment NOt even a place to charge my own electronic devises All in a cheap aircraft with thin seats and very limited reclining I am done with Aeromexico

United Airlines
7.4
Good
8,985 reviews
Aeromexico
7.5
Good
1,849 reviews

Boarding

7.5

Crew

8.0

Entertainment

7.1

Overall

7.5

Comfort

7.6

Food

6.7

Reviews

1 / 10

You are a cheap airline - and I don’t mean well priced I mean miserable. That 4 1/2 hour plus flight was way below acceptable NO Food NO in flight entertainment NOt even a place to charge my own electronic devises All in a cheap aircraft with thin seats and very limited reclining I am done with Aeromexico

WestJet
7.2
Good
2,829 reviews
Aeromexico
7.5
Good
1,849 reviews

Boarding

7.5

Crew

8.0

Entertainment

7.1

Overall

7.5

Comfort

7.6

Food

6.7

Reviews

1 / 10

You are a cheap airline - and I don’t mean well priced I mean miserable. That 4 1/2 hour plus flight was way below acceptable NO Food NO in flight entertainment NOt even a place to charge my own electronic devises All in a cheap aircraft with thin seats and very limited reclining I am done with Aeromexico

Air Canada
7.0
Good
8,635 reviews
Aeromexico
7.5
Good
1,849 reviews

Boarding

7.5

Crew

8.0

Entertainment

7.1

Overall

7.5

Comfort

7.6

Food

6.7

Reviews

1 / 10

You are a cheap airline - and I don’t mean well priced I mean miserable. That 4 1/2 hour plus flight was way below acceptable NO Food NO in flight entertainment NOt even a place to charge my own electronic devises All in a cheap aircraft with thin seats and very limited reclining I am done with Aeromexico

Avianca
6.9
Okay
2,579 reviews
Aeromexico
7.5
Good
1,849 reviews

Boarding

7.5

Crew

8.0

Entertainment

7.1

Overall

7.5

Comfort

7.6

Food

6.7

Reviews

1 / 10

You are a cheap airline - and I don’t mean well priced I mean miserable. That 4 1/2 hour plus flight was way below acceptable NO Food NO in flight entertainment NOt even a place to charge my own electronic devises All in a cheap aircraft with thin seats and very limited reclining I am done with Aeromexico

Related info for your journey

Find useful and relevant information for your journey from Mexico City to St. Louis. 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 Mexico City to St. Louis round-trip?

    Frontier, at $409, was found to be the cheapest airline from Mexico City to St. Louis.Alternate airlines to your destination round-trip include United Airlines and Air Canada. These flights start at 25% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $219 on Volaris. Other airlines that offer cheap prices include Frontier from $286 and Aeromexico from $375 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Mexico City to St. Louis 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 Mexico City to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Mexico City to St. Louis (average of $311). Flying from Mexico City to St. Louis in March is currently the most expensive (average of $356). 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
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Mexico City to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Mexico City to Kansas City flights

Top 2 airlines flying from Mexico City to St. Louis

Discover the top 2 airlines that operate flights from Mexico City to St. Louis. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$413Average$563FlexibilityNo cancel feeOn-time69%
DeltaCheapest$433Average$485FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.