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Cheap flights from Monterrey to St. Louis from $238

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 5/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
8:30 pm - 7:31 pm
MTY
-
STL
22h 01m
2 stops
Multiple Airlines Logo
4:19 pm - 5:35 pm
STL
-
MTY
26h 16m
1 stop
$474Multiple Airlines
Fri, May 22 - Fri, Jun 5
Multiple Airlines Logo
11:30 am - 2:48 pm
MTY
-
STL
26h 18m
1 stop
Multiple Airlines Logo
5:27 pm - 11:45 pm
STL
-
MTY
31h 18m
2 stops
$476Multiple Airlines
Mon, May 25 - Wed, Jun 3
Air Canada Logo
9:20 am - 2:00 pm
MTY
-
STL
27h 40m
1 stop
Air Canada Logo
4:15 pm - 7:30 pm
STL
-
MTY
28h 15m
1 stop
$533Air Canada
Wed, Oct 21 - Sun, Oct 25
Air Canada Logo
9:20 am - 2:00 pm
MTY
-
STL
27h 40m
1 stop
Air Canada Logo
4:15 pm - 7:30 pm
STL
-
MTY
28h 15m
1 stop
$534Air Canada
Wed, Oct 21 - Sun, Oct 25
Air Canada Logo
9:20 am - 2:00 pm
MTY
-
STL
27h 40m
1 stop
Air Canada Logo
4:15 pm - 7:30 pm
STL
-
MTY
28h 15m
1 stop
$535Air Canada
Wed, Oct 21 - Sun, Oct 25
Air Canada Logo
9:20 am - 2:00 pm
MTY
-
STL
27h 40m
1 stop
Air Canada Logo
4:15 pm - 7:30 pm
STL
-
MTY
28h 15m
1 stop
$536Air Canada
Wed, Oct 21 - Sun, Oct 25
Multiple Airlines Logo
11:30 am - 2:48 pm
MTY
-
STL
26h 18m
1 stop
Multiple Airlines Logo
6:51 pm - 7:20 pm
STL
-
MTY
25h 29m
1 stop
$578Multiple Airlines
Mon, May 25 - Wed, Jun 3
United Airlines Logo
5:15 pm - 10:27 am
MTY
-
STL
16h 12m
2 stops
United Airlines Logo
6:15 am - 10:51 am
STL
-
MTY
5h 36m
1 stop
$602United Airlines
Wed, Oct 21 - Sun, Oct 25
Delta Logo
5:46 am - 8:49 pm
MTY
-
STL
14h 03m
2 stops
Delta Logo
6:00 am - 11:05 am
STL
-
MTY
6h 05m
1 stop
$603Delta
Wed, Oct 21 - Sun, Oct 25
Delta Logo
11:40 am - 11:39 pm
MTY
-
STL
10h 59m
2 stops
Delta Logo
6:00 am - 11:05 am
STL
-
MTY
6h 05m
1 stop
$604Delta
Wed, Oct 21 - Sun, Oct 25

Air Canada flights from Monterrey to St. Louis

Our best Air Canada deals on Monterrey to St. Louis flight tickets
Air Canada
Oct 21
MTY9:20 amMonterrey Gen Mariano Escobedo
27h 40m
1 stop
STL2:00 pmLambert-St Louis
Oct 25
STL4:15 pmLambert-St Louis
28h 15m
1 stop
MTY7:30 pmMonterrey Gen Mariano Escobedo
$533
Air Canada
Oct 21
MTY9:20 amMonterrey Gen Mariano Escobedo
27h 40m
1 stop
STL2:00 pmLambert-St Louis
Oct 25
STL4:15 pmLambert-St Louis
28h 15m
1 stop
MTY7:30 pmMonterrey Gen Mariano Escobedo
$534
Air Canada
Oct 21
MTY9:20 amMonterrey Gen Mariano Escobedo
27h 40m
1 stop
STL2:00 pmLambert-St Louis
Oct 25
STL4:15 pmLambert-St Louis
28h 15m
1 stop
MTY7:30 pmMonterrey Gen Mariano Escobedo
$535

United Airlines flights from Monterrey to St. Louis

Our best United Airlines deals on Monterrey to St. Louis flight tickets
United Airlines
Oct 21
MTY5:15 pmMonterrey Gen Mariano Escobedo
16h 12m
2 stops
STL10:27 amLambert-St Louis
Oct 25
STL6:15 amLambert-St Louis
5h 36m
1 stop
MTY10:51 amMonterrey Gen Mariano Escobedo
$602
United Airlines
May 25
MTY5:25 amMonterrey Gen Mariano Escobedo
11h 48m
2 stops
STL6:13 pmLambert-St Louis
Jun 3
STL9:23 amLambert-St Louis
8h 55m
2 stops
MTY5:18 pmMonterrey Gen Mariano Escobedo
$632
United Airlines
May 22
MTY7:35 amMonterrey Gen Mariano Escobedo
12h 46m
2 stops
STL9:21 pmLambert-St Louis
Jun 5
STL1:13 pmLambert-St Louis
8h 47m
2 stops
MTY9:00 pmMonterrey Gen Mariano Escobedo
$673

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 May 3, 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 - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Fri 5/22

8:30 pm-7:31 pm

2 stops22h 01m

Lambert-St Louis

Fri 6/5

4:19 pm-5:35 pm

1 stop26h 16m

$474

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Mon 5/25

11:30 am-2:48 pm

1 stop26h 18m

Lambert-St Louis

Wed 6/3

5:27 pm-11:45 pm

2 stops31h 18m

$476

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

9:20 am-2:00 pm

1 stop27h 40m

Lambert-St Louis

Sun 10/25

4:15 pm-7:30 pm

1 stop28h 15m

$533

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

9:20 am-2:00 pm

1 stop27h 40m

Lambert-St Louis

Sun 10/25

4:15 pm-7:30 pm

1 stop28h 15m

$534

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

9:20 am-2:00 pm

1 stop27h 40m

Lambert-St Louis

Sun 10/25

4:15 pm-7:30 pm

1 stop28h 15m

$535

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

9:20 am-2:00 pm

1 stop27h 40m

Lambert-St Louis

Sun 10/25

4:15 pm-7:30 pm

1 stop28h 15m

$536

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Mon 5/25

11:30 am-2:48 pm

1 stop26h 18m

Lambert-St Louis

Wed 6/3

6:51 pm-7:20 pm

1 stop25h 29m

$578

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

5:15 pm-10:27 am

2 stops16h 12m

Lambert-St Louis

Sun 10/25

6:15 am-10:51 am

1 stop5h 36m

$602

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

5:46 am-8:49 pm

2 stops14h 03m

Lambert-St Louis

Sun 10/25

6:00 am-11:05 am

1 stop6h 05m

$603
Quickest round-trip

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

11:40 am-11:39 pm

2 stops10h 59m

Lambert-St Louis

Sun 10/25

6:00 am-11:05 am

1 stop6h 05m

$604

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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

12h 07m

Direct flights

None
The fastest flight from Monterrey to St. Louis takes 12h 07m
There are no direct flights from Monterrey to St. Louis. There are no popular flight routes from Monterrey to St. Louis.
Search flight deals

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 12h 07m, 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.

Frequently asked questions about flying from Monterrey to St. Louis

  • How do I get Price Alerts for flights from Monterrey to St. Louis?

    Confirm your travel details to search for the latest offers for flights from Monterrey to St. Louis. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Monterrey to St. Louis with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near St. Louis?

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

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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