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St. Louis

$561+ Cheap flights from Monterrey (MTY) to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
MTY — STL
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Monterrey to St. Louis

Cheapest flights from Monterrey to St. Louis
Explore the most affordable flight options available from Monterrey to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/276:00 pmMTY - STL
2 stops18h 27mUnited Airlines
sáb. 2/288:41 amSTL - MTY
2 stops13h 04mUnited Airlines
Deal found 12/11$613
This United Airlines deal was found by Cheapflights users on 12/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/284:54 pmMTY - STL
2 stops19h 33mUnited Airlines
dom. 1/46:00 amSTL - MTY
1 stop14h 36mUnited Airlines
Deal found 12/11$636
This eDestinos deal was found by Cheapflights users on 12/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/246:10 amMTY - STL
1 stop8h 37mVolaris
dom. 12/286:00 amSTL - MTY
1 stop10h 16mVolaris
Deal found 12/11$641
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
mié. 12/2412:05 pmMTY - STL
1 stop28h 19mMultiple Airlines
dom. 12/2810:57 amSTL - MTY
2 stops13h 13mMultiple Airlines
Deal found 12/11$647
This United Airlines deal was found by Cheapflights users on 12/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/241:35 pmMTY - STL
1 stop8h 08mUnited Airlines
dom. 12/288:05 amSTL - MTY
1 stop28h 46mUnited Airlines
Deal found 12/11$676
This United Airlines deal was found by Cheapflights users on 12/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:30 amMTY - STL
2 stops11h 00mUnited Airlines
mar. 12/166:42 pmSTL - MTY
2 stops14h 58mUnited Airlines
Deal found 12/11$724
This Mytrip deal was found by Cheapflights users on 12/11. 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.
dom. 12/288:15 amMTY - STL
3 stops31h 14mMultiple Airlines
dom. 1/411:51 amSTL - MTY
3 stops28h 25mMultiple Airlines
Deal found 12/11$1,015
This Mytrip deal was found by Cheapflights users on 12/11. 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. 12/276:10 amMTY - STL
3 stops28h 46mMultiple Airlines
sáb. 2/284:05 pmSTL - MTY
2 stops15h 29mMultiple Airlines
Deal found 12/11$1,030

Find flight deals from Monterrey to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Monterrey (MTY) to St. Louis (STL). 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 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$286
(Kiwi.com)
Provider with most accurate pricing for Monterrey Gen Mariano Escobedo-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Monterrey Gen Mariano Escobedo-Lambert-St Louis flights.
Search Deals
From Monterrey Gen Mariano Escobedo to Lambert-St Louis
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Monterrey to St. Louis 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 12, 2025.
Use the filters below to find and compare flights from Monterrey to St. Louis that are best for you.

Fly from

Monterrey

Fly to

St. Louis

Route

Depart

Return

Price

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

mar. 2/17

8:50 am-9:00 pm

2 stops12h 10m

Lambert-St Louis

vie. 2/20

7:41 am-6:11 pm

2 stops10h 30m

$561

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

sáb. 12/27

6:00 pm-12:27 pm

2 stops18h 27m

Lambert-St Louis

sáb. 2/28

8:41 am-9:45 pm

2 stops13h 04m

$613

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

dom. 12/28

4:54 pm-12:27 pm

2 stops19h 33m

Lambert-St Louis

dom. 1/4

6:00 am-8:36 pm

1 stop14h 36m

$636

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

mié. 12/24

6:10 am-2:47 pm

1 stop8h 37m

Lambert-St Louis

dom. 12/28

6:00 am-4:16 pm

1 stop10h 16m

$641

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Compare providers for flights from Monterrey to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Monterrey to St. Louis in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Monterrey-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Monterrey-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Monterrey-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Monterrey-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Monterrey-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Monterrey 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.

Related info for your journey

Find useful and relevant information for your journey from Monterrey to St. Louis. 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 Monterrey to St. Louis?

    A quick flight from Monterrey to St. Louis can take about 12h 10m. United Airlines provides one of the quickest options available for as low as $561. There are 1059 mi between Monterrey and St. Louis.

  • Can I find deals for flights from Monterrey to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Monterrey to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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