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St. Louis

$299+ Cheap flights from Monterrey (MTY) to St. Louis (STL)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
MTY — STL
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap 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 julio 30, 2025.

Popular in

May

Cheapest in

April

Average price

$596
Highest demand for flights based on searches. 13% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Monterrey to St. Louis

One-way flights from Monterrey to St. Louis
Search for one-way flight options from Monterrey to St. Louis. Find affordable one-way fares based on user searches. Data last updated julio 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
jue. 9/1111:15 amMTY - STL
2 stops20h 51mMultiple Airlines
Deal found 7/29$299
This flugladen.de deal was found by Cheapflights users on 7/29. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/1112:12 pmMTY - STL
1 stop10h 12mAeromexico
Deal found 7/29$339

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 julio 30, 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

jue. 9/11

11:15 am-9:06 am

2 stops20h 51m

$299

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

jue. 9/11

12:12 pm-11:24 pm

1 stop10h 12m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated julio 30, 2025.
Read through reviews of airlines operating flights from Monterrey to St. Louis, such as Aeromexico. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aeromexico
7.5
Good
1,721 reviews

Food

6.6

Comfort

7.6

Entertainment

7.1

Boarding

7.4

Crew

7.9

Overall

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2025

VER - MEX

Was West jet. Very unconrtsble seats. If they can put more seats probably they will.
Aeromexico
7.5
Good
1,721 reviews
Aeromexico
7.5
Good
1,721 reviews

Food

6.6

Comfort

7.6

Entertainment

7.1

Boarding

7.4

Crew

7.9

Overall

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2025

VER - MEX

Was West jet. Very unconrtsble seats. If they can put more seats probably they will.

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.

  • 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.

  • What is the cheapest month to book a flight from Monterrey to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Monterrey to St. Louis (average of $311). Flying from Monterrey to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near St. Louis?

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

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