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Cheap flights from Monterrey to St. Louis from $267

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Monterrey to St. Louis departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Monterrey to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:36 am - 1:10 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
24h 34m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson
Multiple Airlines Logo
10:20 am - 4:20 pmSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
7h 00m1 stop Dallas/Fort Worth
$392Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
11:36 am - 4:31 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
27h 55m1 stop Dallas/Fort Worth
Multiple Airlines Logo
8:10 pm - 9:20 pmSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
26h 10m2 stops Denver Intl Mexico City Benito Juarez
$436Multiple Airlines
Sat, Sep 5 - Fri, Sep 11
Multiple Airlines Logo
9:16 am - 4:34 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
30h 18m1 stop Orlando
Multiple Airlines Logo
10:20 am - 4:20 pmSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
7h 00m1 stop Dallas/Fort Worth
$438Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
11:36 am - 4:31 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
27h 55m1 stop Dallas/Fort Worth
Multiple Airlines Logo
5:19 pm - 5:01 pmSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
24h 42m1 stop Orlando
$543Multiple Airlines
Sat, Sep 5 - Fri, Sep 11
United Airlines Logo
5:25 am - 2:10 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
7h 45m1 stop Houston George Bush Intcntl
United Airlines Logo
1:00 pm - 8:45 amSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
20h 45m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl
$594United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
10:00 am - 8:36 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
9h 36m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
1:00 pm - 8:45 amSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
20h 45m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl
$594United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
12:10 pm - 10:30 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
9h 20m1 stop Houston George Bush Intcntl
United Airlines Logo
1:40 pm - 8:45 amSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
20h 05m2 stops Denver Intl Houston George Bush Intcntl
$594United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
5:30 am - 3:43 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
9h 13m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
2:55 pm - 10:06 pmSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
7h 11m1 stop Houston George Bush Intcntl
$595United Airlines
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
12:10 pm - 10:59 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
9h 49m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
1:40 pm - 8:45 amSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
20h 05m2 stops Denver Intl Houston George Bush Intcntl
$595United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
7:35 am - 9:21 pmMTY  Monterrey Gen Mariano Escobedo-STL Lambert-St Louis
12h 46m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
10:27 am - 9:00 pmSTL  Lambert-St Louis-MTY Monterrey Gen Mariano Escobedo
11h 33m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$595United Airlines
Thu, Oct 1 - Mon, Oct 5

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American Airlines flights from Monterrey to St. Louis

Our best American Airlines deals on Monterrey to St. Louis flight tickets
American Airlines
Sep 25
MTY7:18 amMonterrey Gen Mariano Escobedo
6h 26m
1 stop
STL2:44 pmLambert-St Louis
Sep 28
STL3:34 pmLambert-St Louis
18h 43m
1 stop
MTY9:17 amMonterrey Gen Mariano Escobedo
$604
American Airlines
Aug 19
MTY7:22 amMonterrey Gen Mariano Escobedo
15h 20m
1 stop
STL11:42 pmLambert-St Louis
Aug 22
STL10:16 amLambert-St Louis
8h 20m
1 stop
MTY5:36 pmMonterrey Gen Mariano Escobedo
$913

Delta flights from Monterrey to St. Louis

Our best Delta deals on Monterrey to St. Louis flight tickets
Delta
Oct 21
MTY7:44 amMonterrey Gen Mariano Escobedo
15h 10m
2 stops
STL11:54 pmLambert-St Louis
Oct 25
STL7:00 amLambert-St Louis
14h 00m
2 stops
MTY8:00 pmMonterrey Gen Mariano Escobedo
$728
Delta
Aug 19
MTY12:15 pmMonterrey Gen Mariano Escobedo
10h 06m
1 stop
STL11:21 pmLambert-St Louis
Aug 22
STL6:00 amLambert-St Louis
6h 05m
1 stop
MTY11:05 amMonterrey Gen Mariano Escobedo
$828
Delta
Aug 19
MTY8:43 amMonterrey Gen Mariano Escobedo
13h 38m
2 stops
STL11:21 pmLambert-St Louis
Aug 22
STL6:00 amLambert-St Louis
6h 05m
1 stop
MTY11:05 amMonterrey Gen Mariano Escobedo
$831

momondo 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, momondo users made 832,500 searches. Data last updated August 8, 2026.
Use the filters below to find and compare flights from Monterrey to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 9/17

11:36 am-1:10 pm

2 stops24h 34m

Lambert-St Louis

Thu 9/24

10:20 am-4:20 pm

1 stop7h 00m

$392

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Sat 9/5

11:36 am-4:31 pm

1 stop27h 55m

Lambert-St Louis

Fri 9/11

8:10 pm-9:20 pm

2 stops26h 10m

$436

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 9/17

9:16 am-4:34 pm

1 stop30h 18m

Lambert-St Louis

Thu 9/24

10:20 am-4:20 pm

1 stop7h 00m

$438

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Sat 9/5

11:36 am-4:31 pm

1 stop27h 55m

Lambert-St Louis

Fri 9/11

5:19 pm-5:01 pm

1 stop24h 42m

$543

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

5:25 am-2:10 pm

1 stop7h 45m

Lambert-St Louis

Sun 10/25

1:00 pm-8:45 am

2 stops20h 45m

$594

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

10:00 am-8:36 pm

2 stops9h 36m

Lambert-St Louis

Sun 10/25

1:00 pm-8:45 am

2 stops20h 45m

$594

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

12:10 pm-10:30 pm

1 stop9h 20m

Lambert-St Louis

Sun 10/25

1:40 pm-8:45 am

2 stops20h 05m

$594
Quickest round-trip

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 10/29

5:30 am-3:43 pm

2 stops9h 13m

Lambert-St Louis

Mon 11/2

2:55 pm-10:06 pm

1 stop7h 11m

$595

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

12:10 pm-10:59 pm

2 stops9h 49m

Lambert-St Louis

Sun 10/25

1:40 pm-8:45 am

2 stops20h 05m

$595

MonterreySt. Louis

MTY Monterrey Gen Mariano Escobedo - STL Lambert-St Louis

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 10/1

7:35 am-9:21 pm

2 stops12h 46m

Lambert-St Louis

Mon 10/5

10:27 am-9:00 pm

2 stops11h 33m

$595

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Monterrey to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Monterrey Gen Mariano Escobedo to Lambert-St Louis?

United Airlines is the most popular carrier operating from Monterrey Gen Mariano Escobedo to Lambert-St Louis

When to book flights from Monterrey to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Monterrey to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Monterrey to St. Louis (MTY to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Monterrey to St. Louis

Fastest flight time

9h 20m

Direct flights

None
The fastest flight from Monterrey to St. Louis takes 9h 20m
There are no direct flights from Monterrey to St. Louis. There are no popular flight routes from Monterrey to St. Louis.
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Frequently asked questions about flying from Monterrey to St. Louis

  • How far is Monterrey Gen Mariano Escobedo to Lambert-St Louis by plane?

    Lambert-St Louis is 1070.6 mi away from Monterrey Gen Mariano Escobedo. Flights usually cover this in 9h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Monterrey Gen Mariano Escobedo Airport to Lambert-St Louis Airport?

    Prices for flights from Monterrey Gen Mariano Escobedo Airport to Lambert-St Louis Airport refresh daily.

  • How old do you have to be to fly from Monterrey Gen Mariano Escobedo Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Monterrey Gen Mariano Escobedo Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
Alton
O'Fallon
Clayton
Farmington
Fenton
Wentzville
Festus
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Monterrey to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Monterrey to St. Louis. momondo saves you time and could save you money on your trip.

Can I find flights from Monterrey to St. Louis with flexible booking policies on momondo?

Flights from Monterrey to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Monterrey to St. Louis?

momondo helps you find the best flight between Monterrey and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Monterrey to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Monterrey to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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