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Cheap flights from Monterrey to St. Louis from $206

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 8/15. 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.
United Airlines Logo
12:25 pm - 10:00 pm
MTY
-
STL
8h 35m
1 stop
United Airlines Logo
8:35 am - 7:30 pm
STL
-
MTY
11h 55m
1 stop
$587United Airlines
Mon, Aug 31 - Wed, Sep 2
United Airlines Logo
12:25 pm - 10:00 pm
MTY
-
STL
8h 35m
1 stop
United Airlines Logo
8:35 am - 7:30 pm
STL
-
MTY
11h 55m
1 stop
$593United Airlines
Mon, Aug 31 - Wed, Sep 2
United Airlines Logo
12:25 pm - 10:59 pm
MTY
-
STL
9h 34m
1 stop
United Airlines Logo
7:25 am - 5:18 pm
STL
-
MTY
10h 53m
2 stops
$597United Airlines
Mon, Aug 31 - Wed, Sep 2
United Airlines Logo
12:10 pm - 10:30 pm
MTY
-
STL
9h 20m
1 stop
United Airlines Logo
7:04 pm - 8:45 am
STL
-
MTY
14h 41m
2 stops
$598United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
12:25 pm - 10:00 pm
MTY
-
STL
8h 35m
1 stop
United Airlines Logo
6:15 am - 10:48 am
STL
-
MTY
5h 33m
1 stop
$599United Airlines
Mon, Aug 31 - Wed, Sep 2
United Airlines Logo
5:25 am - 4:37 pm
MTY
-
STL
10h 12m
2 stops
United Airlines Logo
6:15 am - 5:11 pm
STL
-
MTY
11h 56m
1 stop
$611United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
12:25 pm - 10:59 pm
MTY
-
STL
9h 34m
1 stop
United Airlines Logo
6:15 am - 10:51 am
STL
-
MTY
5h 36m
1 stop
$617United Airlines
Wed, Oct 21 - Sun, Oct 25
Aeromexico Logo
5:47 am - 6:01 pm
MTY
-
STL
11h 14m
2 stops
Aeromexico Logo
9:00 am - 8:00 pm
STL
-
MTY
12h 00m
2 stops
$621Aeromexico
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
12:25 pm - 10:59 pm
MTY
-
STL
9h 34m
1 stop
United Airlines Logo
6:15 am - 10:51 am
STL
-
MTY
5h 36m
1 stop
$622United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
10:00 am - 10:00 pm
MTY
-
STL
11h 00m
2 stops
United Airlines Logo
10:53 am - 9:00 pm
STL
-
MTY
11h 07m
2 stops
$628United Airlines
Mon, Aug 31 - Wed, Sep 2

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United Airlines flights from Monterrey to St. Louis

Our best United Airlines deals on Monterrey to St. Louis flight tickets
United Airlines
Aug 31
MTY12:25 pmMonterrey Gen Mariano Escobedo
8h 35m
1 stop
STL10:00 pmLambert-St Louis
Sep 2
STL8:35 amLambert-St Louis
11h 55m
1 stop
MTY7:30 pmMonterrey Gen Mariano Escobedo
$587
United Airlines
Aug 31
MTY12:25 pmMonterrey Gen Mariano Escobedo
8h 35m
1 stop
STL10:00 pmLambert-St Louis
Sep 2
STL8:35 amLambert-St Louis
11h 55m
1 stop
MTY7:30 pmMonterrey Gen Mariano Escobedo
$593
United Airlines
Oct 21
MTY10:00 amMonterrey Gen Mariano Escobedo
10h 25m
2 stops
STL9:25 pmLambert-St Louis
Oct 25
STL7:04 pmLambert-St Louis
14h 41m
2 stops
MTY8:45 amMonterrey Gen Mariano Escobedo
$595

Delta flights from Monterrey to St. Louis

Our best Delta deals on Monterrey to St. Louis flight tickets
Delta
Oct 24
MTY12:15 pmMonterrey Gen Mariano Escobedo
10h 24m
1 stop
STL11:39 pmLambert-St Louis
Oct 30
STL7:20 amLambert-St Louis
11h 00m
1 stop
MTY5:20 pmMonterrey Gen Mariano Escobedo
$635
Delta
Oct 21
MTY5:47 amMonterrey Gen Mariano Escobedo
14h 02m
2 stops
STL8:49 pmLambert-St Louis
Oct 25
STL9:00 amLambert-St Louis
9h 54m
2 stops
MTY5:54 pmMonterrey Gen Mariano Escobedo
$716
Delta
Jun 25
MTY7:25 amMonterrey Gen Mariano Escobedo
15h 31m
2 stops
STL11:56 pmLambert-St Louis
Jul 2
STL10:51 amLambert-St Louis
12h 24m
2 stops
MTY10:15 pmMonterrey Gen Mariano Escobedo
$1,088

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 June 21, 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

Mon 8/31

12:25 pm-10:00 pm

1 stop8h 35m

Lambert-St Louis

Wed 9/2

8:35 am-7:30 pm

1 stop11h 55m

$587

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Mon 8/31

12:25 pm-10:00 pm

1 stop8h 35m

Lambert-St Louis

Wed 9/2

8:35 am-7:30 pm

1 stop11h 55m

$593

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Mon 8/31

12:25 pm-10:59 pm

1 stop9h 34m

Lambert-St Louis

Wed 9/2

7:25 am-5:18 pm

2 stops10h 53m

$597

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

12:10 pm-10:30 pm

1 stop9h 20m

Lambert-St Louis

Sun 10/25

7:04 pm-8:45 am

2 stops14h 41m

$598
Quickest round-trip

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Mon 8/31

12:25 pm-10:00 pm

1 stop8h 35m

Lambert-St Louis

Wed 9/2

6:15 am-10:48 am

1 stop5h 33m

$599

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

5:25 am-4:37 pm

2 stops10h 12m

Lambert-St Louis

Sun 10/25

6:15 am-5:11 pm

1 stop11h 56m

$611

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

12:25 pm-10:59 pm

1 stop9h 34m

Lambert-St Louis

Sun 10/25

6:15 am-10:51 am

1 stop5h 36m

$617

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

5:47 am-6:01 pm

2 stops11h 14m

Lambert-St Louis

Sun 10/25

9:00 am-8:00 pm

2 stops12h 00m

$621

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Wed 10/21

12:25 pm-10:59 pm

1 stop9h 34m

Lambert-St Louis

Sun 10/25

6:15 am-10:51 am

1 stop5h 36m

$622

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Mon 8/31

10:00 am-10:00 pm

2 stops11h 00m

Lambert-St Louis

Wed 9/2

10:53 am-9:00 pm

2 stops11h 07m

$628

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?

Frontier and United Airlines are the most popular carriers 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

5h 48m

Direct flights

None
The fastest flight from Monterrey to St. Louis takes 5h 48m
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 5h 48m, 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
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
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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