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Cheap flights from St. Louis (STL) to Mexico City (MEX) from $129

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — MEX
May 2 — May 91
From?
To?
Thu 5/2
Thu 5/9
1 adult, Economy
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The best prices from Lambert-St Louis to Mexico City Benito Juarez are usually found in February or May, booked 44 days in advance, depart on a Wednesday or Monday and return on a Thursday

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 27, 2024.

Popular in

December

Cheapest in

February

Round-trip from

$383

One-way from

$248
High demand for flights, 25% potential price rise
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Best time to find cheap flights, 12% potential price drop
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From Lambert-St Louis to Mexico City Benito Juarez
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One-way flight from Lambert-St Louis to Mexico City Benito Juarez
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What is the cheapest day to fly round-trip from St. Louis to Mexico City?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 9% when planning your travel around this day of the week.

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 45 days before your planned departure. Booking around this time can save you about 97% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $699 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $888.

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

February is one of the best times of the year to fly to Mexico City from St. Louis. Prices for February average $668 per person but you can even find prices for as low as $504. The most expensive prices can be found in the month of December. Opting for a February flight can save you 32% on your journey compared to booking in December

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 4% on your trip compared to booking a flight in the afternoon.

Cheap Aeromexico flights from St. Louis to Mexico City

Explore cheap flight options specifically provided by Aeromexico for the route between St. Louis and Mexico City. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 27, 2024.
Check out some of the cheapest Aeromexico flights we've come across from St. Louis to Mexico City. It's recommended that users confirm their flight details before booking.
Tue 5/1412:53 pmSTL - MEX
1 stop10h 07mAeromexico
Wed 5/1510:50 amMEX - STL
2 stops11h 50mAeromexico
Deal found 4/25$626
Tue 5/147:10 amSTL - MEX
1 stop15h 50mAeromexico
Wed 5/1510:50 amMEX - STL
2 stops11h 50mAeromexico
Deal found 4/26$646
Mon 7/293:43 pmSTL - MEX
1 stop19h 37mAeromexico
Tue 8/66:10 amMEX - STL
1 stop8h 47mAeromexico
Deal found 4/25$787

Cheap United Airlines flights from St. Louis to Mexico City

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Mexico City. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 27, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from St. Louis to Mexico City. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Wed 5/1511:10 amSTL - MEX
2 stops12h 45mUnited Airlines
Tue 5/214:40 amMEX - STL
2 stops10h 06mUnited Airlines
Deal found 4/27$714
Wed 5/1510:10 amSTL - MEX
2 stops8h 40mUnited Airlines
Tue 5/214:40 amMEX - STL
2 stops10h 06mUnited Airlines
Deal found 4/26$734

Cheap St. Louis to Mexico City flights in April & May 2024

Find cheap flight options from St. Louis to Mexico City specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Prices were last updated on April 27, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Mexico City in 2024. Check back regularly for other flight deals.
Tue 5/2810:34 amSTL - MEX
2 stops32h 21mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$372
Sun 5/266:19 pmSTL - MEX
2 stops16h 36mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$396
Sat 5/255:15 pmSTL - MEX
2 stops17h 40mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$399
Tue 5/2810:34 amSTL - MEX
2 stops15h 06mMultiple Airlines
Thu 6/611:05 amMEX - STL
1 stop19h 03mMultiple Airlines
Deal found 4/26$403
Tue 5/2811:28 amSTL - MEX
1 stop13h 02mVolaris
Tue 6/44:45 amMEX - STL
1 stop11h 53mVolaris
Deal found 4/26$427
Sun 5/266:19 pmSTL - MEX
2 stops24h 36mMultiple Airlines
Sun 6/211:15 pmMEX - STL
1 stop17h 23mMultiple Airlines
Deal found 4/26$432
Tue 5/2810:34 amSTL - MEX
2 stops24h 21mMultiple Airlines
Sat 6/16:35 amMEX - STL
1 stop10h 03mMultiple Airlines
Deal found 4/26$433
Sun 5/2611:22 pmSTL - MEX
1 stop19h 08mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$437
Sat 5/255:15 pmSTL - MEX
2 stops17h 40mMultiple Airlines
Mon 6/37:30 pmMEX - STL
2 stops17h 07mMultiple Airlines
Deal found 4/26$438

St. Louis to Mexico City 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Mexico City in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 27, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Mexico City in 2024. Check back regularly for other flight deals.
Tue 5/2810:34 amSTL - MEX
2 stops32h 21mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$372
Sun 5/266:19 pmSTL - MEX
2 stops16h 36mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$396
Sat 5/255:15 pmSTL - MEX
2 stops17h 40mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$399
Tue 5/2810:34 amSTL - MEX
2 stops15h 06mMultiple Airlines
Thu 6/611:05 amMEX - STL
1 stop19h 03mMultiple Airlines
Deal found 4/26$403
Sat 8/2411:33 amSTL - MEX
1 stop13h 37mVolaris
Tue 8/2711:15 pmMEX - STL
1 stop17h 29mVolaris
Deal found 4/26$423
Tue 5/2811:28 amSTL - MEX
1 stop13h 02mVolaris
Tue 6/44:45 amMEX - STL
1 stop11h 53mVolaris
Deal found 4/26$427
Sun 5/266:19 pmSTL - MEX
2 stops24h 36mMultiple Airlines
Sun 6/211:15 pmMEX - STL
1 stop17h 23mMultiple Airlines
Deal found 4/26$432
Tue 5/2810:34 amSTL - MEX
2 stops24h 21mMultiple Airlines
Sat 6/16:35 amMEX - STL
1 stop10h 03mMultiple Airlines
Deal found 4/26$433
Sun 5/2611:22 pmSTL - MEX
1 stop19h 08mMultiple Airlines
Tue 6/411:45 amMEX - STL
1 stop8h 54mMultiple Airlines
Deal found 4/26$437

One-way flights to Mexico City from St. Louis

Search for one-way flight options from St. Louis to Mexico City. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 27, 2024.
Users in need of a one-way flight from St. Louis to Mexico City can choose from these deals. Users in need of a round-trip flight from St. Louis to Mexico City instead should update the search form at the top of page.
Mon 5/209:26 pmSTL - MEX
3 stops37h 29mMultiple Airlines
Deal found 4/27$129
Sun 5/196:19 pmSTL - MEX
2 stops16h 36mMultiple Airlines
Deal found 4/27$162
Sun 5/1911:22 pmSTL - MEX
1 stop19h 08mMultiple Airlines
Deal found 4/27$177
Sun 5/57:30 pmSTL - MEX
2 stops23h 25mMultiple Airlines
Deal found 4/25$200
Mon 5/209:26 pmSTL - MEX
2 stops33h 19mMultiple Airlines
Deal found 4/27$215
Mon 5/209:26 pmSTL - MEX
1 stop23h 09mMultiple Airlines
Deal found 4/27$237
Sun 5/53:29 pmSTL - MEX
1 stop27h 01mMultiple Airlines
Deal found 4/25$242
Tue 7/211:33 amSTL - MEX
1 stop14h 07mVolaris
Deal found 4/26$248
Fri 5/312:00 pmSTL - MEX
2 stops18h 35mMultiple Airlines
Deal found 4/26$270

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

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 2,991,349 searches. Data last updated April 27, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$372 - $714

Route

Depart

Return

Price

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Tue 5/28

2 stops32h 21m

Mexico City Benito Juarez

Tue 6/4

1 stop8h 54m

$372

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Sun 5/26

2 stops16h 36m

Mexico City Benito Juarez

Tue 6/4

1 stop8h 54m

$396

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Sat 8/24

1 stop13h 37m

Mexico City Benito Juarez

Tue 8/27

1 stop17h 29m

$423

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Tue 5/28

1 stop13h 02m

Mexico City Benito Juarez

Tue 6/4

1 stop11h 53m

$427

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Wed 5/29

1 stop7h 27m

Mexico City Benito Juarez

Wed 6/5

1 stop10h 23m

$503

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Wed 7/10

1 stop10h 09m

Mexico City Benito Juarez

Mon 7/15

1 stop14h 09m

$505

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Tue 5/14

1 stop10h 07m

Mexico City Benito Juarez

Wed 5/15

2 stops11h 50m

$626

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Sun 5/26

1 stop14h 00m

Mexico City Benito Juarez

Sat 6/1

1 stop14h 26m

$652

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Wed 5/15

2 stops12h 45m

Mexico City Benito Juarez

Tue 5/21

2 stops10h 06m

$714

Flights are sorted by cheapest first

Deals found on 4/26

When is the best time to 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 January 28, 2024.
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 44 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from St. Louis to Mexico City?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Mexico City. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Mexico City flight should consider departing on Saturday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Mexico City by month

Plan your trip from St. Louis to Mexico City by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Mexico City is currently $209 while a round-trip flight costs $513. Price data was last updated on April 21, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to Mexico City (average of $383). Flying from St. Louis to Mexico City in July is currently the most expensive (average of $514). 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.

January

$413

February

$424

March

$433

April

$410

May

$409

June

$439

July

$514

August

$437

September

$383

October

$413

November

$426

December

$490

Temperature and rainfall in Mexico City by month

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

MEX

Temperature

55.4 - 66.2 °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 27, 2024.
Read through reviews of airlines operating flights from St. Louis to Mexico City, such as Aeromexico, United Airlines and Air Canada. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,951 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.4

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
10,951 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.4

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Aeromexico
7.7
Good
2,626 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.4

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

WestJet
7.5
Good
2,979 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.4

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,228 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.4

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,875 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.4

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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.

  • Can I find flights from St. Louis to Mexico City for under $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Mexico City for under $400. The cheapest flight booked recently is on Multiple Airlines for just $372, but on average you can expect to pay $434.

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

    Volaris, at $423, was found to be the cheapest airline from St. Louis to Mexico City.. This flight start at 36% 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 Volaris. According to our data, you can fly for as low as $248. Users have also found prices from $290 and $307 on Delta and Air Canada, respectively.

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

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

  • What does STL to MEX mean?

    STL and MEX are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to MEX refers to a flight route from Lambert-St Louis Airport to Mexico City Benito Juarez Airport.

  • Can I find deals for flights from St. Louis to Mexico City that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Mexico City flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Mexico City with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Mexico City flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from St. Louis to Mexico City that allow pets onboard?

    Many airlines flying from St. Louis to Mexico City offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Mexico City?

    Yes, you can often find last-minute deals on St. Louis to Mexico City flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Mexico City flight deals updated?

    The St. Louis to Mexico City flight deals you see on this page were last updated on 4/26.

See more FAQs

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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.

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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 2,991,349 searches. Data last updated April 27, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$358Average$637FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
VolarisCheapest$476Average$517FlexibilityNo cancel feeOn-time79%
Search Volaris flights
American AirlinesCheapest$499Average$629FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$504Average$636FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
AeromexicoCheapest$521Average$617FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
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Search flights from St. Louis to Mexico City by cabin class

Find flights from St. Louis to Mexico City, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Mexico City?

When you search for this flight from St. Louis to Mexico City, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Mexico City?

Cheapflights helps you find that perfect flight to Mexico City from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to Mexico City with no change fees?

Yes! Cheapflights helps users easily find flights from St. Louis to Mexico City with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to Mexico City become cheaper?

Not ready to book yet? You can track prices for flights from St. Louis to Mexico City on Cheapflights with our Price Alert feature and get notified when better prices are available.

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