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$111+ Cheap flights from Missouri 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
Nov 23 — Nov 301
Sun 11/23
Sun 11/30
1 adult, Economy
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Cheap flight deals from Missouri to Mexico

Keep the following information in mind while searching for Missouri to Mexico flight deals. Data was last updated October 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$284
(Frontier)

One-way from

$111
(Priceline)

Popular in

December

Cheapest in

September

Average price

$679

Good round-trip deal

$360 or less

Good one-way deal

$194 or less
Provider with most accurate pricing for Lambert-St Louis-Mexico City Benito Juarez flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Mexico City Benito Juarez flights.
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From Missouri to Mexico
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One-way flight from Missouri to Mexico
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Highest demand for flights based on searches. 8% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Missouri to Mexico.
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Price to beat on a one-way flight from Missouri to Mexico.
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Find flight deals from Missouri to Mexico

Cheapest flights from Missouri to Mexico
Explore the most affordable flight options available from Missouri to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2025.

This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amSTL - CUN
Nonstop3h 23mFrontier
Sat 12/1311:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/23$284
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amSTL - CUN
Nonstop3h 23mFrontier
Tue 12/911:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/22$286
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amSTL - CUN
Nonstop3h 23mFrontier
Sat 12/1311:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/22$291
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amSTL - CUN
Nonstop3h 23mFrontier
Sat 12/611:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/23$292
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amSTL - CUN
Nonstop3h 23mFrontier
Wed 12/1011:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/23$294
This Priceline deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amSTL - CUN
Nonstop3h 23mFrontier
Sat 12/1311:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/21$297
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amSTL - CUN
Nonstop3h 23mFrontier
Sun 12/711:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/23$300
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:17 amSTL - CUN
Nonstop3h 13mFrontier
Wed 11/193:45 pmCUN - STL
Nonstop3h 15mFrontier
Deal found 10/21$305
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Wed 12/36:00 amSTL - CUN
Nonstop3h 23mFrontier
Thu 12/411:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/23$306
This Frontier deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amSTL - CUN
Nonstop3h 23mFrontier
Sat 12/611:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/23$321
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1110:17 amSTL - CUN
Nonstop3h 13mFrontier
Sat 11/153:45 pmCUN - STL
Nonstop3h 15mFrontier
Deal found 10/20$322
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Sun 12/711:58 amMCI - CUN
2 stops22h 38mMultiple Airlines
Sun 12/142:36 pmCUN - MCI
1 stop28h 10mMultiple Airlines
Deal found 10/23$356

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri 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 October 24, 2025.
Use the filters below to find and compare flights from Missouri to Mexico that are best for you.

Fly from

Missouri

Fly to

Mexico

Route

Depart

Return

Price

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Wed 1/21

6:00 am-4:31 pm

1 stop9h 31m

Cancun

Wed 1/28

11:18 am-11:40 pm

2 stops13h 22m

$316

Kansas CityMexico City

MCI - MEX

MCIMEX

Kansas City

Mon 11/24

8:28 pm-5:05 pm

1 stop20h 37m

Mexico City Benito Juarez

Tue 12/2

7:00 am-8:03 pm

2 stops13h 03m

$422

Kansas CitySan José del Cabo

MCI - SJD

MCISJD

Kansas City

Sun 12/14

8:08 am-2:32 pm

1 stop7h 24m

San José del Cabo Los Cabos

Wed 12/17

2:11 pm-10:30 pm

1 stop7h 19m

$426

Kansas CityCancún

MCI - CUN

MCICUN

Kansas City

Tue 11/11

8:50 am-1:10 pm

Nonstop3h 20m

Cancun

Fri 11/14

9:40 am-12:00 pm

Nonstop3h 20m

$428

Kansas CityCancún

MCI - CUN

MCICUN

Kansas City

Sat 1/10

10:20 am-2:25 pm

Nonstop3h 05m

Cancun

Sat 1/17

3:25 pm-5:55 pm

Nonstop3h 30m

$428

Kansas CityCancún

MCI - CUN

MCICUN

Kansas City

Tue 1/20

6:45 am-11:05 am

Nonstop3h 20m

Cancun

Sat 1/24

11:40 am-6:55 pm

1 stop8h 15m

$429

Kansas CitySan José del Cabo

MCI - SJD

MCISJD

Kansas City

Tue 12/9

5:13 am-3:22 pm

2 stops11h 09m

San José del Cabo Los Cabos

Tue 12/23

1:16 pm-12:13 am

1 stop9h 57m

$431

Kansas CitySan José del Cabo

MCI - SJD

MCISJD

Kansas City

Sun 1/11

8:00 am-3:35 pm

1 stop8h 35m

San José del Cabo Los Cabos

Fri 1/16

3:43 pm-11:12 pm

1 stop6h 29m

$431

Kansas CityCancún

MCI - CUN

MCICUN

Kansas City

Tue 3/10

8:00 am-7:59 pm

1 stop11h 59m

Cancun

Sat 3/14

2:25 pm-5:55 pm

Nonstop3h 30m

$432

Kansas CityCancún

MCI - CUN

MCICUN

Kansas City

Tue 1/20

8:00 am-5:50 pm

2 stops8h 50m

Cancun

Sat 1/24

8:39 am-2:11 pm

1 stop6h 32m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 60 results
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Best time to book a flight from Missouri to Mexico

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

Cheapflights Insights

Everything you need to know about your flight from Missouri to Mexico

What is the cheapest month to book a flight from Missouri to Mexico?

Currently, February is the cheapest month in which you can book a flight from Missouri to Mexico (average of $174). Flying from Missouri to Mexico in December is currently the most expensive (average of $301). 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 MO to MX?

Find hourly flight availability from Missouri 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 October 24, 2025.

When flying from Missouri to Mexico, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the morning.

What is the cheapest day to fly from Missouri to Mexico?

Use this chart to determine the cheapest time to fly round-trip from Missouri to Mexico. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Missouri to Mexico flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Mexico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Missouri to Mexico?

    There are many flights that can get you from Missouri to Mexico in 3h 20m. Fly via Delta, United Airlines, or Southwest to get the fastest option. Missouri and Mexico are separated by a distance of 1343 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Missouri to Mexico one-way?

    $144 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Spirit Airlines and American Airlines, with prices starting from $160 and $167, respectively.

  • Can I find deals for flights from Missouri to Mexico that include hotel bookings?

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

  • How can I find direct flights from Missouri to Mexico?

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

  • Can I find deals for business class flights from Missouri to Mexico?

    Yes. Cheapflights offers flight deals from Missouri 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 Missouri to Mexico?

    Currently, February is the cheapest month in which you can book a flight from Missouri to Mexico (average of $174). Flying from Missouri to Mexico in December is currently the most expensive (average of $301). 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 Missouri 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 Missouri to Mexico

Discover the top 9 airlines that operate flights from Missouri 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 October 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$130Average$337FlexibilityNo cancel feeOn-time65%
VolarisCheapest$175Average$375FlexibilityNo cancel feeOn-time79%
DeltaCheapest$185Average$590FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$244Average$463FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$247Average$540FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$291Average$606FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$306Average$601FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$385Average$730FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$441Average$659FlexibilityNo cancel feeOn-time63%

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