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$100+ Cheap flights from St. Louis (STL) to Mexico

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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
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Cheap flight deals from St. Louis to Mexico

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Mexico (MX0). 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 diciembre 18, 2024.

Round-trip from

$337
(CheapOair)

One-way from

$100
(Expedia)
From Lambert-St Louis to Mexico
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One-way flight from Lambert-St Louis to Mexico
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Find flight deals from St. Louis to Mexico

Cheapest flights from St. Louis to Mexico
Explore the most affordable flight options available from St. Louis to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 18, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
mar. 12/314:27 pmSTL - CUN
1 stop18h 51mMultiple Airlines
jue. 1/912:19 pmCUN - STL
Nonstop3h 15mMultiple Airlines
Deal found 12/18$426
This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
lun. 12/306:00 amSTL - CUN
Nonstop3h 26mFrontier
jue. 1/912:19 pmCUN - STL
Nonstop3h 15mFrontier
Deal found 12/18$446
This CheapOair deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/316:00 amSTL - MEX
1 stop18h 10mFrontier
sáb. 1/114:35 amMEX - STL
1 stop9h 59mFrontier
Deal found 12/17$495
This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/314:27 pmSTL - CUN
2 stops15h 47mSpirit Airlines
mar. 1/710:25 amCUN - STL
1 stop5h 56mSpirit Airlines
Deal found 12/18$536
This SmartFares deal was found by Cheapflights users on 12/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/283:53 pmSTL - GDL
1 stop25h 46mFrontier
jue. 1/167:00 amGDL - STL
1 stop16h 31mFrontier
Deal found 12/18$592
This Mytrip deal was found by Cheapflights users on 12/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/285:52 pmSTL - GDL
2 stops27h 29mMultiple Airlines
jue. 1/166:00 amGDL - STL
3 stops29h 45mMultiple Airlines
Deal found 12/18$626
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/246:00 amSTL - MEX
1 stop23h 45mMultiple Airlines
mié. 12/257:40 pmMEX - STL
2 stops16h 30mMultiple Airlines
Deal found 12/16$631
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/246:04 amSTL - CUN
1 stop8h 11mDelta
dom. 12/2912:45 pmCUN - STL
1 stop10h 21mDelta
Deal found 12/17$651
This United deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/256:00 amSTL - CUN
1 stop13h 18mUnited Airlines
mié. 1/14:49 pmCUN - STL
1 stop8h 10mUnited Airlines
Deal found 12/17$676
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/316:04 amSTL - SJD
1 stop8h 01mDelta
mar. 1/712:10 pmSJD - STL
1 stop10h 04mDelta
Deal found 12/17$700
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/286:04 amSTL - CZM
1 stop9h 14mDelta
dom. 1/53:19 pmCZM - STL
1 stop8h 21mDelta
Deal found 12/17$701
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/215:29 pmSTL - PVR
1 stop17h 47mAmerican Airlines
lun. 12/234:38 pmPVR - STL
1 stop16h 14mAmerican Airlines
Deal found 12/17$731

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 2,558,603 searches. Data last updated diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

dom. 1/26

6:25 am-10:50 am

Nonstop3h 25m

Cancun

mié. 1/29

1:10 pm-2:43 pm

1 stop26h 33m

$337

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

sáb. 2/22

6:54 pm-1:55 pm

1 stop18h 01m

Cancun

sáb. 3/1

10:15 am-11:43 pm

1 stop14h 28m

$341

St. LouisMexico City

STL - MEX

STLMEX

Lambert-St Louis

lun. 1/20

7:09 pm-6:45 pm

1 stop23h 36m

Mexico City Benito Juarez

sáb. 2/1

11:10 am-11:31 pm

1 stop12h 21m

$366

St. LouisPuerto Vallarta

STL - PVR

STLPVR

Lambert-St Louis

vie. 1/24

7:09 pm-11:31 am

1 stop16h 22m

Puerto Vallarta Ordaz

jue. 1/30

1:55 pm-9:49 pm

1 stop7h 54m

$376

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

jue. 1/23

4:28 pm-9:13 am

2 stops39h 45m

Cancun

lun. 1/27

1:10 pm-2:43 pm

1 stop26h 33m

$379

St. LouisPuerto Vallarta

STL - PVR

STLPVR

Lambert-St Louis

vie. 1/24

12:52 pm-11:14 pm

2 stops10h 22m

Puerto Vallarta Ordaz

jue. 1/30

1:55 pm-9:49 pm

1 stop7h 54m

$386

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

mié. 1/22

6:00 am-11:38 pm

2 stops16h 38m

Cancun

mar. 1/28

1:09 pm-11:37 pm

2 stops11h 28m

$387

St. LouisCozumel

STL - CZM

STLCZM

Lambert-St Louis

mié. 1/22

7:15 am-2:00 pm

1 stop6h 45m

Cozumel

mar. 1/28

3:15 pm-11:37 pm

1 stop8h 22m

$388

St. LouisPuerto Vallarta

STL - PVR

STLPVR

Lambert-St Louis

dom. 2/23

6:31 am-3:10 pm

1 stop8h 39m

Puerto Vallarta Ordaz

vie. 2/28

5:52 pm-9:59 am

2 stops16h 07m

$402

St. LouisGuadalajara

STL - GDL

STLGDL

Lambert-St Louis

sáb. 1/25

7:09 pm-1:21 pm

2 stops18h 12m

Guadalajara Miguel Hidal

sáb. 2/1

5:15 am-2:57 pm

1 stop9h 42m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 60 results
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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.

Travel insights for flights from St. Louis to Mexico

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

What is the cheapest month 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 $389). Flying from St. Louis to Mexico in July is currently the most expensive (average of $500). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

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 diciembre 18, 2024.

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.

Rainfall in Mexico by month

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

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

Temperature in Mexico by month

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

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

Reviews of airlines servicing Mexico

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 diciembre 18, 2024.
Read reviews from past customers who have flown Air Canada, Aeromexico 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.
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Copa Airlines
7.7
Good
1,723 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Aeromexico
7.5
Good
1,930 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

  • 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 $100. Users have also found prices from $123 and $176 on Spirit Airlines and Delta, respectively.

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

    The most popular route from St. Louis to Mexico is Lambert-St Louis - Cancun. You may also consider Lambert-St Louis - Cozumel or Lambert-St Louis - San José del Cabo Los Cabos.

  • 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.

  • What is the cheapest month 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 $389). Flying from St. Louis to Mexico in July is currently the most expensive (average of $500). 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

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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.
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Top 9 airlines flying from St. Louis to Mexico

Discover the top 9 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 2,558,603 searches. Data last updated diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$100Average$271FlexibilityNo cancel feeOn-time65%
VolarisCheapest$225Average$452FlexibilityNo cancel feeOn-time79%
FrontierCheapest$287Average$551FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$382Average$513FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$385Average$492FlexibilityNo cancel feeOn-time75%
DeltaCheapest$386Average$547FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$387Average$610FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$411Average$588FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$473Average$744FlexibilityNo cancel feeOn-time63%
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