Cheap flights from St. Louis (STL) to Mexico from $135

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 8/5. 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 29 — Jun 51

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

Find a great deal and save up to 13% by booking at least 53 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Mexico within the next two weeks, with the cheapest ticket starting at $532.

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

January can be a great time to fly to Mexico from St. Louis with a flight ticket averaging about $639. Cheapflights users have found deals in the month of January for as cheap as $494. The most expensive prices can be found in the month of December.

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

When flying from St. Louis to Mexico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap United Airlines flights from St. Louis to Mexico

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Mexico. 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 2,725,499 searches. Data last updated May 24, 2024.
Take a look at some of the lowest-priced United Airlines flights heading from St. Louis to Mexico. Come back soon if you're not finding the exact deal you're looking for.
Mon 10/146:15 amSTL - CUN
1 stop13h 05mUnited Airlines
Wed 10/233:01 pmCUN - STL
2 stops19h 06mUnited Airlines
Deal found 5/22$438
Fri 11/86:15 amSTL - CUN
1 stop13h 03mUnited Airlines
Mon 11/116:30 amCUN - STL
1 stop16h 45mUnited Airlines
Deal found 5/23$445
Fri 8/235:20 pmSTL - PVR
3 stops19h 07mUnited Airlines
Fri 8/3012:30 pmPVR - STL
2 stops23h 13mUnited Airlines
Deal found 5/23$465
Sat 10/125:03 pmSTL - CUN
1 stop21h 34mUnited Airlines
Thu 10/171:12 pmCUN - STL
2 stops20h 55mUnited Airlines
Deal found 5/22$497
Thu 5/309:05 amSTL - CUN
2 stops13h 02mUnited Airlines
Wed 6/57:51 amCUN - STL
2 stops12h 58mUnited Airlines
Deal found 5/22$619
Tue 5/286:30 amSTL - CUN
2 stops15h 37mUnited Airlines
Wed 6/57:51 amCUN - STL
2 stops12h 58mUnited Airlines
Deal found 5/22$644
Tue 5/285:31 pmSTL - CUN
2 stops19h 02mUnited Airlines
Wed 6/57:51 amCUN - STL
2 stops12h 58mUnited Airlines
Deal found 5/23$659
Wed 7/36:20 amSTL - SJD
1 stop6h 11mUnited Airlines
Sat 7/610:00 amSJD - STL
1 stop10h 17mUnited Airlines
Deal found 5/21$730
Mon 6/38:55 amSTL - MID
1 stop10h 10mUnited Airlines
Thu 6/67:00 amMID - STL
1 stop8h 25mUnited Airlines
Deal found 5/23$740

Cheap Frontier flights from St. Louis to Mexico

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Mexico. 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 2,725,499 searches. Data last updated May 24, 2024.
Take a gander at the lowest prices we've found on Frontier flights from St. Louis to Mexico. Deals are refreshing constantly so come back soon for more options.
Thu 8/227:29 pmSTL - GDL
1 stop24h 10mFrontier
Sun 9/88:51 pmGDL - STL
2 stops36h 27mFrontier
Deal found 5/22$399
Wed 7/317:33 pmSTL - CUN
1 stop13h 01mFrontier
Tue 8/69:49 amCUN - STL
1 stop22h 54mFrontier
Deal found 5/21$404
Mon 9/27:29 pmSTL - GDL
1 stop25h 18mFrontier
Wed 9/2511:29 amGDL - STL
1 stop21h 49mFrontier
Deal found 5/23$411
Mon 9/27:29 pmSTL - GDL
2 stops34h 33mFrontier
Wed 9/259:12 amGDL - STL
1 stop10h 24mFrontier
Deal found 5/23$417
Mon 7/12:18 pmSTL - GDL
1 stop10h 15mFrontier
Tue 7/95:15 amGDL - STL
1 stop11h 31mFrontier
Deal found 5/23$433
Sat 11/211:33 amSTL - CUN
Nonstop3h 23mFrontier
Sat 11/93:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/22$454
Mon 9/1611:33 amSTL - CUN
Nonstop3h 23mFrontier
Mon 9/232:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/22$471
Sat 9/711:33 amSTL - CUN
Nonstop3h 23mFrontier
Sat 9/142:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/22$476
Wed 7/39:42 amSTL - CUN
Nonstop3h 17mFrontier
Tue 7/99:49 amCUN - STL
1 stop22h 54mFrontier
Deal found 5/23$479

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

Find cheap flight options from St. Louis to Mexico specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,725,499 searches. Prices were last updated on May 24, 2024.
These are some of the best deals we've found on flights to Mexico in 2024 at this time. Check back soon for alternative fares.
Sun 6/96:55 pmSTL - CUN
1 stop13h 28mSpirit Airlines
Thu 6/139:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/22$291
Sun 6/96:55 pmSTL - CUN
1 stop13h 28mSpirit Airlines
Thu 6/139:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/23$294
Sun 5/266:19 pmSTL - CUN
1 stop22h 55mMultiple Airlines
Fri 5/3111:39 amCUN - STL
1 stop20h 18mMultiple Airlines
Deal found 5/23$311
Sun 6/96:55 pmSTL - CUN
2 stops16h 37mSpirit Airlines
Thu 6/139:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/22$344
Thu 5/307:30 pmSTL - CUN
1 stop12h 55mMultiple Airlines
Wed 6/511:59 amCUN - STL
1 stop9h 47mMultiple Airlines
Deal found 5/22$351
Sun 6/27:30 pmSTL - CUN
1 stop12h 55mSpirit Airlines
Sat 6/812:30 pmCUN - STL
1 stop28h 02mSpirit Airlines
Deal found 5/22$354
Mon 5/275:57 pmSTL - CUN
1 stop16h 27mMultiple Airlines
Thu 5/309:10 amCUN - STL
1 stop9h 30mMultiple Airlines
Deal found 5/22$358
Sun 6/96:55 pmSTL - CUN
2 stops16h 37mSpirit Airlines
Thu 6/139:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/23$361
Sun 5/266:19 pmSTL - CUN
1 stop22h 55mSpirit Airlines
Fri 5/316:05 pmCUN - STL
1 stop22h 20mSpirit Airlines
Deal found 5/22$363

St. Louis to Mexico 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Mexico in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,725,499 searches. Data last updated May 24, 2024.
These are some of the best deals we've found on flights to Mexico in 2024 at this time. Check back soon for alternative fares.
Mon 9/94:31 pmSTL - CUN
1 stop15h 54mSpirit Airlines
Fri 9/139:10 amCUN - STL
1 stop13h 04mSpirit Airlines
Deal found 5/23$267
Sun 6/96:55 pmSTL - CUN
1 stop13h 28mSpirit Airlines
Thu 6/139:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/22$291
Sun 6/96:55 pmSTL - CUN
1 stop13h 28mSpirit Airlines
Thu 6/139:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/23$294
Sun 5/266:19 pmSTL - CUN
1 stop22h 55mMultiple Airlines
Fri 5/3111:39 amCUN - STL
1 stop20h 18mMultiple Airlines
Deal found 5/23$311
Mon 9/94:31 pmSTL - CUN
2 stops18h 49mSpirit Airlines
Fri 9/139:10 amCUN - STL
1 stop13h 04mSpirit Airlines
Deal found 5/23$313
Sun 8/187:48 pmSTL - CUN
1 stop12h 37mSpirit Airlines
Wed 8/2110:49 amCUN - STL
3 stops31h 40mSpirit Airlines
Deal found 5/23$326
Fri 8/166:45 amSTL - CUN
1 stop5h 51mDelta
Thu 8/2211:00 amCUN - STL
1 stop7h 04mDelta
Deal found 5/23$335
Sun 8/187:48 pmSTL - CUN
1 stop12h 37mMultiple Airlines
Wed 8/2110:49 amCUN - STL
2 stops33h 06mMultiple Airlines
Deal found 5/23$336
Thu 9/57:48 pmSTL - CUN
2 stops15h 32mSpirit Airlines
Thu 9/129:10 amCUN - STL
1 stop9h 19mSpirit Airlines
Deal found 5/21$340

Non-stop flights to Mexico from St. Louis

Discover non-stop flight options from St. Louis to Mexico. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,725,499 searches. Data last updated May 24, 2024.
Consider booking one of these non-stop flights heading from St. Louis to Mexico. Select from other flights from St. Louis to Mexico by using the search form above.
Sat 11/211:33 amSTL - CUN
Nonstop3h 23mFrontier
Sat 11/93:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/23$454
Mon 9/911:33 amSTL - CUN
Nonstop3h 23mFrontier
Fri 9/132:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/23$471
Thu 9/1211:33 amSTL - CUN
Nonstop3h 23mMultiple Airlines
Sun 9/152:20 pmCUN - STL
Nonstop3h 24mMultiple Airlines
Deal found 5/23$475
Sat 9/711:33 amSTL - CUN
Nonstop3h 23mFrontier
Sat 9/142:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/23$476
Sun 8/1811:33 amSTL - CUN
Nonstop3h 23mMultiple Airlines
Wed 8/212:20 pmCUN - STL
Nonstop3h 24mMultiple Airlines
Deal found 5/23$480
Fri 8/1611:33 amSTL - CUN
Nonstop3h 23mFrontier
Thu 8/222:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/23$481
Sat 8/3111:33 amSTL - CUN
Nonstop3h 23mMultiple Airlines
Fri 9/62:20 pmCUN - STL
Nonstop3h 24mMultiple Airlines
Deal found 5/23$485
Wed 8/2811:33 amSTL - CUN
Nonstop3h 23mFrontier
Sun 9/12:20 pmCUN - STL
Nonstop3h 24mFrontier
Deal found 5/23$486
Tue 10/2911:33 amSTL - CUN
Nonstop3h 23mMultiple Airlines
Tue 11/53:20 pmCUN - STL
Nonstop3h 24mMultiple Airlines
Deal found 5/23$490

St. Louis to Mexico flights leaving soon

Find last-minute flight options from St. Louis to Mexico for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,725,499 searches. Data last updated May 24, 2024.
Check out these flights departing soon from St. Louis to Mexico. To prevent any unwanted surprises, users should verify their flight info before booking.
Thu 5/307:30 pmSTL - CUN
1 stop12h 55mMultiple Airlines
Wed 6/511:59 amCUN - STL
1 stop9h 47mMultiple Airlines
Deal found 5/22$351
Sun 6/27:30 pmSTL - CUN
1 stop12h 55mSpirit Airlines
Sat 6/812:30 pmCUN - STL
1 stop28h 02mSpirit Airlines
Deal found 5/22$354
Thu 5/307:30 pmSTL - CUN
2 stops21h 44mMultiple Airlines
Wed 6/511:59 amCUN - STL
1 stop9h 47mMultiple Airlines
Deal found 5/22$358
Tue 5/2810:34 amSTL - CUN
1 stop6h 40mMultiple Airlines
Wed 6/511:59 amCUN - STL
1 stop9h 47mMultiple Airlines
Deal found 5/22$376
Sun 6/27:30 pmSTL - CUN
1 stop12h 55mMultiple Airlines
Sat 6/82:15 pmCUN - STL
3 stops26h 17mMultiple Airlines
Deal found 5/22$385
Thu 5/307:30 pmSTL - CUN
2 stops45h 44mSpirit Airlines
Thu 6/69:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/23$389
Thu 5/307:30 pmSTL - CUN
1 stop12h 55mSpirit Airlines
Thu 6/69:10 amCUN - STL
1 stop10h 12mSpirit Airlines
Deal found 5/23$400
Thu 5/307:30 pmSTL - CUN
2 stops21h 44mSpirit Airlines
Tue 6/412:15 pmCUN - STL
2 stops24h 50mSpirit Airlines
Deal found 5/22$402
Thu 5/307:30 pmSTL - CUN
2 stops21h 44mMultiple Airlines
Tue 6/412:15 pmCUN - STL
3 stops23h 50mMultiple Airlines
Deal found 5/22$405

One-way flights to Mexico from St. Louis

Search for one-way flight options from St. Louis to Mexico. 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 2,725,499 searches. Data last updated May 24, 2024.
Users traveling one-way from St. Louis to Mexico can select one of these great deals. Users can also find round-trip St. Louis to Mexico flights by using the search form above.
Mon 8/59:32 pmSTL - CUN
1 stop12h 57mFrontier
Deal found 5/22$135
Sun 8/47:24 pmSTL - CUN
1 stop12h 59mSpirit Airlines
Deal found 5/22$172
Mon 8/57:33 pmSTL - CUN
2 stops15h 56mMultiple Airlines
Deal found 5/22$177
Wed 7/249:32 pmSTL - CUN
1 stop12h 57mFrontier
Deal found 5/22$179
Tue 7/23:23 pmSTL - MEX
2 stops19h 32mMultiple Airlines
Deal found 5/23$183
Tue 9/38:00 amSTL - GDL
1 stop12h 47mMultiple Airlines
Deal found 5/23$191
Wed 6/55:30 amSTL - CUN
1 stop8h 10mAmerican Airlines
Deal found 5/23$192
Mon 7/17:29 pmSTL - MEX
1 stop25h 06mMultiple Airlines
Deal found 5/22$192
Tue 7/211:57 amSTL - MEX
1 stop8h 38mMultiple Airlines
Deal found 5/23$193

Find flights from St. Louis to Mexico within your budget

Customize your flight search to find flights from St. Louis to Mexico 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 2,725,499 searches. Data last updated May 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$267 - $503

Route

Depart

Return

Price

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Mon 9/9

1 stop15h 54m

Cancun

Fri 9/13

1 stop13h 04m

$267

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Sun 6/9

1 stop13h 28m

Cancun

Thu 6/13

1 stop10h 12m

$291

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Fri 8/16

1 stop5h 51m

Cancun

Thu 8/22

1 stop7h 04m

$335

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Sun 8/18

1 stop12h 37m

Cancun

Wed 8/21

2 stops33h 06m

$336

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Sat 9/7

1 stop9h 22m

Cancun

Sat 9/14

1 stop10h 16m

$342

Lambert-St LouisGuadalajara Miguel Hidal

STL - GDL

STLGDL

Lambert-St Louis

Thu 8/22

1 stop24h 10m

Guadalajara Miguel Hidal

Sun 9/8

2 stops36h 27m

$399

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Mon 10/14

1 stop13h 05m

Cancun

Wed 10/23

2 stops19h 06m

$438

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Fri 8/30

2 stops12h 23m

Cancun

Tue 9/3

2 stops25h 38m

$493

Lambert-St LouisCancun

STL - CUN

STLCUN

Lambert-St Louis

Sun 10/13

Nonstop3h 23m

Cancun

Fri 10/18

Nonstop3h 24m

$503

Flights are sorted by cheapest first

Deals found on 5/23

No data available for this route at this time. Please check back soon.

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

Have a flexible travel schedule? Discover the best time to fly to Mexico 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.

Reviews of airlines servicing Mexico

Get insights into the airlines that provide service to Mexico. 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. Reviews last updated May 24, 2024.
Read reviews from past customers who have flown United Airlines, Frontier and Delta from St. Louis to Mexico. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,561 reviews

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

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.

8.0
Very good
10,561 reviews
8.0
Very good
10,561 reviews

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

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.

7.6
Good
2,503 reviews
8.0
Very good
10,561 reviews

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

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.

7.5
Good
2,895 reviews
8.0
Very good
10,561 reviews

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

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.

7.4
Good
10,845 reviews
8.0
Very good
10,561 reviews

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

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.

7.3
Good
14,388 reviews
8.0
Very good
10,561 reviews

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

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.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Mexico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to Mexico?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Mexico.

  • Can I find flights from St. Louis to Mexico for under $300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Mexico for under $300. The cheapest flight booked recently is on Spirit Airlines for just $267, but on average you can expect to pay $337.

  • Are there nonstop flights from St. Louis to Mexico for under $500 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Mexico under $500. A good price for a nonstop flight from St. Louis to Mexico is less than $496.

  • Are there last-minute flights available from St. Louis to Mexico for under $400?

    There are currently 20+ open flights from St. Louis to Mexico within the next 7 days for less than $400.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $135. Users have also found prices from $172 and $192 on Spirit Airlines and American Airlines, respectively.

  • What are the most popular routes from St. Louis to Mexico?

  • What does STL to MEX mean?

    Great question - STL to MEX just means Lambert-St Louis Airport to Mexico City Benito Juarez Airport. Now you’ll know what these unique codes when you look for flights! While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Cancun Airport (CUN), Guadalajara Miguel Hidal Airport (GDL), Puerto Vallarta Ordaz Airport (PVR), San José del Cabo Los Cabos Airport (SJD), Tijuana Rodriguez Airport (TIJ).

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

    The amount of baggage you can bring on your St. Louis to Mexico 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 with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Mexico 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 that include hotel bookings?

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

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

    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.

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

    Yes. Cheapflights offers flight deals from St. Louis to Mexico 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 that allow pets onboard?

    Many airlines flying from St. Louis to Mexico 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?

    Yes, you can often find last-minute deals on St. Louis to Mexico 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 flight deals updated?

    The St. Louis to Mexico flight deals you see on this page were last updated on 5/23.

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

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Mexico (average of $382). Flying from St. Louis to Mexico in July is currently the most expensive (average of $510). 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

Browse thousands of different options on Cheapflights for your next trip

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

Top 7 airlines flying from St. Louis to Mexico

Discover the top 7 airlines that operate flights from St. Louis to Mexico. 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 2,725,499 searches. Data last updated May 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$135Average$271FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
VolarisCheapest$195Average$469FlexibilityNo cancel feeOn-time79%
Search Volaris flights
FrontierCheapest$228Average$477FlexibilityNo cancel feeOn-time62%
Search Frontier flights
AeromexicoCheapest$361Average$655FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
DeltaCheapest$383Average$575FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$388Average$587FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$399Average$628FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from St. Louis to Mexico by cabin class

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

Hourly flight availability from St. Louis to Mexico

Find hourly flight availability from St. Louis to Mexico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 24, 2024.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM