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

Frontier, at $448, was found to be the cheapest airline from St. Louis to Mexico City.. This flight start at 29% 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 Frontier. According to our data, you can fly for as low as $238. Users have also found prices from $295 and $525 on American Airlines and Aeromexico, respectively.

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 5/9.

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.

Can I find flights from St. Louis to Mexico City for under $500 on Cheapflights?

Yes, there are multiple flights from St. Louis to Mexico City for under $500. The cheapest flight booked recently is on Frontier for just $448, but on average you can expect to pay $474.

Are there last-minute flights available from St. Louis to Mexico City for under $500?

There are currently 20+ open flights from St. Louis to Mexico City within the next 7 days for less than $500.

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.

Flights from St. Louis, MO to Mexico City, Mexico from $221

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

The best prices from Lambert-St Louis to Mexico City Benito Juarez are usually found in January or February, booked 52 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from St. Louis to Mexico City

Popular in	December
Cheapest in	January
Round-trip from	$386
One-way from	$238

High demand for flights, 12% potential price rise

Search Deals

Best time to find cheap flights, 10% potential price drop

Search Deals

From Lambert-St Louis to Mexico City Benito Juarez

Search Deals

One-way flight from Lambert-St Louis to Mexico City Benito Juarez

Search Deals

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 10% 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 53 days before your planned departure. Booking around this time can save you about 13% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $532 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $532.

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

January is one of the best times of the year to fly to Mexico City from St. Louis. Prices for January average $640 per person but you can even find prices for as low as $494. The most expensive prices can be found in the month of December. Opting for a January flight can save you 14% 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 8% on your trip compared to booking a flight in the afternoon.

Cheap Aeromexico flights from St. Louis to Mexico City

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.

Fri 6/74:02 pmSTL - MEX

1 stop6h 58mAeromexico

Mon 6/1011:15 pmMEX - STL

2 stops16h 05mAeromexico

Deal found 5/9$570

Fri 6/216:00 amSTL - MEX

2 stops13h 00mAeromexico

Mon 6/2411:05 pmMEX - STL

2 stops16h 15mAeromexico

Deal found 5/9$605

Sun 6/94:02 pmSTL - MEX

1 stop6h 58mAeromexico

Wed 6/125:55 amMEX - STL

1 stop9h 25mAeromexico

Deal found 5/9$690

Sun 6/27:01 amSTL - MEX

1 stop15h 59mAeromexico

Wed 6/53:30 pmMEX - STL

1 stop7h 10mAeromexico

Deal found 5/9$735

Tue 5/1412:53 pmSTL - MEX

1 stop6h 37mAeromexico

Wed 5/156:50 amMEX - STL

2 stops15h 50mAeromexico

Deal found 5/7$736

Tue 5/147:10 amSTL - MEX

1 stop12h 20mAeromexico

Wed 5/157:50 amMEX - STL

2 stops14h 50mAeromexico

Deal found 5/8$806

Cheap United Airlines flights from St. Louis to Mexico City

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.

Sat 6/295:30 pmSTL - MEX

1 stop20h 15mUnited Airlines

Wed 7/34:40 amMEX - STL

1 stop10h 48mUnited Airlines

Deal found 5/9$602

Sat 6/295:30 pmSTL - MEX

1 stop20h 15mUnited Airlines

Wed 7/34:40 pmMEX - STL

2 stops22h 00mUnited Airlines

Deal found 5/9$606

Sat 6/296:20 amSTL - MEX

1 stop17h 35mUnited Airlines

Tue 7/26:30 amMEX - STL

1 stop8h 58mUnited Airlines

Deal found 5/9$607

Sat 6/228:55 amSTL - MEX

1 stop15h 00mUnited Airlines

Tue 6/256:30 amMEX - STL

2 stops13h 19mUnited Airlines

Deal found 5/9$609

Sat 6/296:20 amSTL - MEX

1 stop17h 35mUnited Airlines

Tue 7/211:35 amMEX - STL

2 stops21h 50mUnited Airlines

Deal found 5/9$612

Wed 6/194:55 pmSTL - MEX

1 stop16h 45mUnited Airlines

Sun 6/236:30 amMEX - STL

1 stop14h 45mUnited Airlines

Deal found 5/9$617

Thu 7/45:03 pmSTL - MEX

1 stop16h 37mUnited Airlines

Mon 7/84:40 amMEX - STL

1 stop16h 37mUnited Airlines

Deal found 5/9$619

Fri 6/286:20 amSTL - MEX

1 stop5h 30mUnited Airlines

Mon 7/14:40 pmMEX - STL

2 stops16h 45mUnited Airlines

Deal found 5/9$654

Fri 7/58:05 amSTL - MEX

2 stops10h 45mUnited Airlines

Mon 7/84:40 amMEX - STL

1 stop16h 37mUnited Airlines

Deal found 5/9$656

Cheap St. Louis to Mexico City flights in May & June 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.

Mon 6/172:18 pmSTL - MEX

1 stop9h 32mFrontier

Sat 6/228:10 amMEX - STL

1 stop29h 27mFrontier

Deal found 5/8$448

Mon 6/177:29 pmSTL - MEX

1 stop26h 41mMultiple Airlines

Thu 6/2012:40 amMEX - STL

2 stops14h 35mMultiple Airlines

Deal found 5/8$450

Mon 6/37:23 pmSTL - MEX

1 stop26h 47mMultiple Airlines

Sun 6/912:40 amMEX - STL

2 stops14h 35mMultiple Airlines

Deal found 5/8$457

Mon 6/34:05 pmSTL - MEX

3 stops30h 55mMultiple Airlines

Mon 6/107:55 amMEX - STL

2 stops26h 02mMultiple Airlines

Deal found 5/8$459

Mon 6/172:18 pmSTL - MEX

1 stop9h 32mFrontier

Fri 6/218:10 amMEX - STL

1 stop24h 19mFrontier

Deal found 5/8$470

Mon 6/39:20 pmSTL - MEX

2 stops19h 45mMultiple Airlines

Mon 6/1010:55 amMEX - STL

1 stop22h 47mMultiple Airlines

Deal found 5/8$471

Wed 6/57:29 pmSTL - MEX

1 stop26h 41mMultiple Airlines

Wed 6/127:30 pmMEX - STL

2 stops15h 35mMultiple Airlines

Deal found 5/8$475

Tue 5/149:35 amSTL - MEX

2 stops25h 55mMultiple Airlines

Tue 5/2111:15 pmMEX - STL

1 stop17h 23mMultiple Airlines

Deal found 5/8$478

Wed 6/51:55 pmSTL - MEX

2 stops16h 25mMultiple Airlines

Wed 6/1212:50 pmMEX - STL

2 stops27h 38mMultiple Airlines

Deal found 5/8$480

St. Louis to Mexico City 2024 flight deals

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.

Wed 8/2111:33 amSTL - MEX

1 stop14h 07mVolaris

Sun 8/255:25 amMEX - STL

1 stop11h 19mVolaris

Deal found 5/9$423

Mon 6/172:18 pmSTL - MEX

1 stop9h 32mFrontier

Sat 6/228:10 amMEX - STL

1 stop29h 27mFrontier

Deal found 5/8$448

Mon 6/177:29 pmSTL - MEX

1 stop26h 41mMultiple Airlines

Thu 6/2012:40 amMEX - STL

2 stops14h 35mMultiple Airlines

Deal found 5/8$450

Mon 8/2611:33 amSTL - MEX

1 stop13h 37mVolaris

Thu 8/2911:15 pmMEX - STL

1 stop17h 29mVolaris

Deal found 5/8$451

Mon 6/37:23 pmSTL - MEX

1 stop26h 47mMultiple Airlines

Sun 6/912:40 amMEX - STL

2 stops14h 35mMultiple Airlines

Deal found 5/8$457

Mon 6/34:05 pmSTL - MEX

3 stops30h 55mMultiple Airlines

Mon 6/107:55 amMEX - STL

2 stops26h 02mMultiple Airlines

Deal found 5/8$459

Wed 7/1011:33 amSTL - MEX

1 stop13h 37mVolaris

Mon 7/1511:15 pmMEX - STL

1 stop17h 29mVolaris

Deal found 5/8$461

Mon 6/172:18 pmSTL - MEX

1 stop9h 32mFrontier

Fri 6/218:10 amMEX - STL

1 stop24h 19mFrontier

Deal found 5/8$470

Mon 6/39:20 pmSTL - MEX

2 stops19h 45mMultiple Airlines

Mon 6/1010:55 amMEX - STL

1 stop22h 47mMultiple Airlines

Deal found 5/8$471

St. Louis to Mexico City flights leaving soon

Have a look at some of the last-minute flights available departing from St. Louis to Mexico City. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

Tue 5/149:35 amSTL - MEX

2 stops25h 55mMultiple Airlines

Tue 5/2111:15 pmMEX - STL

1 stop17h 23mMultiple Airlines

Deal found 5/8$478

Wed 5/157:51 pmSTL - MEX

1 stop26h 19mMultiple Airlines

Sat 5/1811:15 pmMEX - STL

1 stop17h 23mMultiple Airlines

Deal found 5/9$485

Sun 5/1911:22 pmSTL - MEX

1 stop19h 08mMultiple Airlines

Fri 5/2412:50 pmMEX - STL

2 stops26h 35mMultiple Airlines

Deal found 5/7$491

Sun 5/1911:22 pmSTL - MEX

1 stop19h 08mMultiple Airlines

Fri 5/2411:15 pmMEX - STL

1 stop17h 23mMultiple Airlines

Deal found 5/7$496

Tue 5/1410:59 pmSTL - MEX

1 stop23h 11mMultiple Airlines

Tue 5/2110:55 amMEX - STL

1 stop22h 18mMultiple Airlines

Deal found 5/8$515

Tue 5/149:35 amSTL - MEX

2 stops21h 00mMultiple Airlines

Tue 5/213:45 pmMEX - STL

2 stops18h 01mMultiple Airlines

Deal found 5/8$521

Sun 5/1912:45 pmSTL - MEX

2 stops17h 50mMultiple Airlines

Fri 5/2412:50 pmMEX - STL

2 stops26h 35mMultiple Airlines

Deal found 5/7$533

Wed 5/1512:15 pmSTL - MEX

2 stops17h 35mMultiple Airlines

Sat 5/1811:15 pmMEX - STL

1 stop17h 23mMultiple Airlines

Deal found 5/9$542

Tue 5/149:35 amSTL - MEX

2 stops21h 00mMultiple Airlines

Tue 5/214:00 amMEX - STL

3 stops29h 46mMultiple Airlines

Deal found 5/8$544

One-way flights to Mexico City from St. Louis

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.

Fri 6/215:36 pmSTL - MEX

1 stop24h 54mMultiple Airlines

Deal found 5/8$221

Fri 6/75:36 pmSTL - MEX

1 stop24h 54mMultiple Airlines

Deal found 5/8$223

Fri 6/143:07 pmSTL - MEX

1 stop31h 03mMultiple Airlines

Deal found 5/8$233

Fri 7/1911:33 amSTL - MEX

1 stop13h 37mFrontier

Deal found 5/9$238

Fri 6/76:10 pmSTL - MEX

2 stops29h 40mMultiple Airlines

Deal found 5/8$244

Fri 6/217:29 pmSTL - MEX

2 stops28h 31mMultiple Airlines

Deal found 5/8$257

Fri 6/76:10 pmSTL - MEX

3 stops28h 50mMultiple Airlines

Deal found 5/8$263

Fri 6/143:07 pmSTL - MEX

2 stops23h 33mMultiple Airlines

Deal found 5/8$266

Sun 6/167:47 pmSTL - MEX

1 stop15h 33mAmerican Airlines

Deal found 5/9$295

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

Fly from

Fly to

Budget

$448 - $602

Route

Depart

Return

Price

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Mon 6/17

1 stop9h 32m

Mexico City Benito Juarez

Sat 6/22

1 stop29h 27m

$448

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Mon 6/3

1 stop26h 47m

Mexico City Benito Juarez

Sun 6/9

2 stops14h 35m

$457

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Mon 6/3

3 stops30h 55m

Mexico City Benito Juarez

Mon 6/10

2 stops26h 02m

$459

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Mon 6/17

1 stop9h 32m

Mexico City Benito Juarez

Thu 6/20

2 stops16h 55m

$462

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Thu 6/6

2 stops23h 11m

Mexico City Benito Juarez

Thu 6/13

1 stop19h 02m

$466

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Mon 6/17

1 stop9h 32m

Mexico City Benito Juarez

Sat 6/22

1 stop29h 27m

$468

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Thu 6/6

2 stops9h 30m

Mexico City Benito Juarez

Thu 6/13

2 stops12h 53m

$519

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Fri 6/7

1 stop6h 58m

Mexico City Benito Juarez

Mon 6/10

2 stops16h 05m

$570

Lambert-St LouisMexico City Benito Juarez

STL - MEX

STLMEX

Lambert-St Louis

Sat 6/29

1 stop20h 15m

Mexico City Benito Juarez

Wed 7/3

1 stop10h 48m

$602

Flights are sorted by cheapest first

Deals found on 5/8

When is the best time to book a flight from St. Louis to Mexico City?

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 52 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?

Morning

Noon

Afternoon

Evening

All times are departure.

Travelers seeking maximum savings on their St. Louis to Mexico City flight should consider departing on Sunday 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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Mexico City (average of $386). Flying from St. Louis to Mexico City in July is currently the most expensive (average of $512). 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

$409

February

$424

March

$433

April

$412

May

$408

June

$439

July

$512

August

$438

September

$386

October

$413

November

$425

December

$491

Temperature and rainfall in Mexico City by month

MEX Temperature	55.4 - 66.2 °F

MEX

Temperature

55.4 - 66.2 °F

Reviews of airlines servicing Mexico City

Read through reviews of airlines operating flights from St. Louis to Mexico City, such as Aeromexico, United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

10,778 reviews

Check prices

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta

8.0

Very good

10,778 reviews

Delta

8.0

Very good

10,778 reviews

Check prices

Reviews

1 / 10

Aeromexico

7.6

Good

2,561 reviews

Delta

8.0

Very good

10,778 reviews

Check prices

Reviews

1 / 10

United Airlines

7.4

Good

11,027 reviews

Delta

8.0

Very good

10,778 reviews

Check prices

Reviews

1 / 10

American Airlines

7.3

Good

14,665 reviews

Delta

8.0

Very good

10,778 reviews

Check prices

Reviews

1 / 10

Frontier

6.3

Okay

4,085 reviews

Delta

8.0

Very good

10,778 reviews

Check prices

Reviews

1 / 10

Related info for your journey

Can I find flights from St. Louis to Mexico City for under $500 on Cheapflights?
Yes, there are multiple flights from St. Louis to Mexico City for under $500. The cheapest flight booked recently is on Frontier for just $448, but on average you can expect to pay $474.
Are there last-minute flights available from St. Louis to Mexico City for under $500?
There are currently 20+ open flights from St. Louis to Mexico City within the next 7 days for less than $500.
What is the cheapest airline to fly from St. Louis to Mexico City round-trip?
Frontier, at $448, was found to be the cheapest airline from St. Louis to Mexico City.. This flight start at 29% 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 Frontier. According to our data, you can fly for as low as $238. Users have also found prices from $295 and $525 on American Airlines and Aeromexico, 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 5/9.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Mexico City
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Mexico City flights

Springfield to Mexico City flights

Complete your trip
Complete your trip to Mexico City by adding a car rental and/or hotel reservation to your travel itinerary.

Mexico City car rentals

Mexico City Benito Juarez Airport car rentals

Mexico City Toluca Intl Airport car rentals

Puebla City Huejotzingo Airport car rentals

La Condesa car rentals

Coyoacán car rentals

Iztapalapa car rentals

Miguel Hidalgo car rentals

Azcapotzalco car rentals

Benito Juárez car rentals

Cuauhtémoc car rentals

Tlalpan car rentals

Other flights to Mexico City
Explore flights to Mexico City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 10, 2024.

Top 5 airlines flying from St. Louis to Mexico City

Airline	Cheapest	Average	Flexibility	On-time
Volaris	Cheapest$474	Average$517	FlexibilityNo cancel fee	On-time79%	Search Volaris flights
American Airlines	Cheapest$502	Average$625	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Delta	Cheapest$504	Average$636	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	Cheapest$504	Average$639	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aeromexico	Cheapest$521	Average$617	FlexibilityNo cancel fee	On-timeN/A	Search Aeromexico flights

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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.

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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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Cheap flights from St. Louis (STL) to Mexico City (MEX) from $221

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 6/21. 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.

The best prices from Lambert-St Louis to Mexico City Benito Juarez are usually found in January or February, booked 52 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from St. Louis to Mexico City

Popular in

Cheapest in

Round-trip from

One-way from

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

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

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

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

Cheap Aeromexico flights from St. Louis to Mexico City

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.

Cheap United Airlines flights from St. Louis to Mexico City

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.

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

Find cheap flight options from St. Louis to Mexico City specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Prices were last updated on May 10, 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.

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 2,717,708 searches. Data last updated May 10, 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.

St. Louis to Mexico City flights leaving soon

Have a look at some of the last-minute flights available departing from St. Louis to Mexico City. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Mexico City from St. Louis

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.

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

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 May 3, 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 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 May 5, 2024.

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 $249 while a round-trip flight costs $495. Price data was last updated on May 5, 2024.

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.

Reviews of airlines servicing Mexico City

Read through reviews of airlines operating flights from St. Louis to Mexico City, such as Aeromexico, United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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Top 5 airlines flying from St. Louis to Mexico City

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