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Cheap flights from Monterrey to St. Louis from $333

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 3/22. 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
0 bags

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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
11:30 am - 7:32 pm
MTY
-
STL
31h 02m
2 stops
Multiple Airlines Logo
8:08 pm - 6:05 pm
STL
-
MTY
22h 57m
1 stop
$429Multiple Airlines
Fri, May 1 - Fri, May 8
Multiple Airlines Logo
6:18 pm - 3:19 pm
MTY
-
STL
20h 01m
1 stop
Multiple Airlines Logo
8:08 pm - 6:05 pm
STL
-
MTY
22h 57m
1 stop
$517Multiple Airlines
Fri, May 1 - Fri, May 8
Multiple Airlines Logo
6:02 am - 7:21 pm
MTY
-
STL
12h 19m
2 stops
Multiple Airlines Logo
8:08 pm - 8:00 pm
STL
-
MTY
24h 52m
2 stops
$556Multiple Airlines
Fri, May 1 - Fri, May 8
Multiple Airlines Logo
6:02 am - 7:21 pm
MTY
-
STL
12h 19m
2 stops
Multiple Airlines Logo
9:18 pm - 8:00 pm
STL
-
MTY
23h 42m
3 stops
$578Multiple Airlines
Fri, May 1 - Fri, May 8
United Airlines Logo
12:37 pm - 9:26 pm
MTY
-
STL
7h 49m
1 stop
United Airlines Logo
8:35 am - 9:00 pm
STL
-
MTY
13h 25m
1 stop
$635United Airlines
Thu, Jun 25 - Wed, Jul 15
United Airlines Logo
12:37 pm - 9:26 pm
MTY
-
STL
7h 49m
1 stop
United Airlines Logo
6:00 am - 3:02 pm
STL
-
MTY
10h 02m
2 stops
$645United Airlines
Thu, Jun 25 - Wed, Jul 15
Aeromexico Logo
12:56 pm - 11:36 pm
MTY
-
STL
9h 40m
1 stop
Aeromexico Logo
6:00 am - 5:40 pm
STL
-
MTY
12h 40m
1 stop
$654Aeromexico
Tue, Apr 21 - Fri, Apr 24
Aeromexico Logo
8:02 am - 5:44 pm
MTY
-
STL
8h 42m
1 stop
Aeromexico Logo
7:25 am - 5:40 pm
STL
-
MTY
11h 15m
1 stop
$666Aeromexico
Tue, Apr 21 - Fri, Apr 24
Aeromexico Logo
7:42 am - 9:19 pm
MTY
-
STL
12h 37m
2 stops
Aeromexico Logo
1:02 pm - 12:49 am
STL
-
MTY
12h 47m
2 stops
$669Aeromexico
Tue, Apr 21 - Fri, Apr 24
Aeromexico Logo
12:56 pm - 11:36 pm
MTY
-
STL
9h 40m
1 stop
Aeromexico Logo
6:00 am - 11:40 am
STL
-
MTY
6h 40m
1 stop
$670Aeromexico
Tue, Apr 21 - Fri, Apr 24

United Airlines flights from Monterrey to St. Louis

Our best United Airlines deals on Monterrey to St. Louis flight tickets
United Airlines
Jun 25
MTY12:37 pmMonterrey Gen Mariano Escobedo
7h 49m
1 stop
STL9:26 pmLambert-St Louis
Jul 15
STL8:35 amLambert-St Louis
13h 25m
1 stop
MTY9:00 pmMonterrey Gen Mariano Escobedo
$635
United Airlines
Jun 25
MTY12:37 pmMonterrey Gen Mariano Escobedo
7h 49m
1 stop
STL9:26 pmLambert-St Louis
Jul 15
STL6:00 amLambert-St Louis
10h 02m
2 stops
MTY3:02 pmMonterrey Gen Mariano Escobedo
$645
United Airlines
Apr 21
MTY10:00 amMonterrey Gen Mariano Escobedo
11h 28m
1 stop
STL10:28 pmLambert-St Louis
Apr 24
STL10:09 amLambert-St Louis
5h 53m
1 stop
MTY3:02 pmMonterrey Gen Mariano Escobedo
$696

Aeromexico flights from Monterrey to St. Louis

Our best Aeromexico deals on Monterrey to St. Louis flight tickets
Aeromexico
Apr 21
MTY12:56 pmMonterrey Gen Mariano Escobedo
9h 40m
1 stop
STL11:36 pmLambert-St Louis
Apr 24
STL6:00 amLambert-St Louis
12h 40m
1 stop
MTY5:40 pmMonterrey Gen Mariano Escobedo
$654
Aeromexico
Apr 21
MTY12:56 pmMonterrey Gen Mariano Escobedo
7h 23m
1 stop
STL9:19 pmLambert-St Louis
Apr 24
STL1:02 pmLambert-St Louis
10h 58m
2 stops
MTY11:00 pmMonterrey Gen Mariano Escobedo
$666
Aeromexico
Apr 21
MTY7:42 amMonterrey Gen Mariano Escobedo
12h 37m
2 stops
STL9:19 pmLambert-St Louis
Apr 24
STL1:02 pmLambert-St Louis
12h 47m
2 stops
MTY12:49 amMonterrey Gen Mariano Escobedo
$669

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 March 17, 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 5/1

11:30 am-7:32 pm

2 stops31h 02m

Lambert-St Louis

Fri 5/8

8:08 pm-6:05 pm

1 stop22h 57m

$429

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Fri 5/1

6:18 pm-3:19 pm

1 stop20h 01m

Lambert-St Louis

Fri 5/8

8:08 pm-6:05 pm

1 stop22h 57m

$517

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Fri 5/1

6:02 am-7:21 pm

2 stops12h 19m

Lambert-St Louis

Fri 5/8

8:08 pm-8:00 pm

2 stops24h 52m

$556

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Fri 5/1

6:02 am-7:21 pm

2 stops12h 19m

Lambert-St Louis

Fri 5/8

9:18 pm-8:00 pm

3 stops23h 42m

$578

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 6/25

12:37 pm-9:26 pm

1 stop7h 49m

Lambert-St Louis

Wed 7/15

8:35 am-9:00 pm

1 stop13h 25m

$635

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 6/25

12:37 pm-9:26 pm

1 stop7h 49m

Lambert-St Louis

Wed 7/15

6:00 am-3:02 pm

2 stops10h 02m

$645

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Tue 4/21

12:56 pm-11:36 pm

1 stop9h 40m

Lambert-St Louis

Fri 4/24

6:00 am-5:40 pm

1 stop12h 40m

$654

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Tue 4/21

8:02 am-5:44 pm

1 stop8h 42m

Lambert-St Louis

Fri 4/24

7:25 am-5:40 pm

1 stop11h 15m

$666

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Tue 4/21

7:42 am-9:19 pm

2 stops12h 37m

Lambert-St Louis

Fri 4/24

1:02 pm-12:49 am

2 stops12h 47m

$669
Quickest round-trip

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Tue 4/21

12:56 pm-11:36 pm

1 stop9h 40m

Lambert-St Louis

Fri 4/24

6:00 am-11:40 am

1 stop6h 40m

$670

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 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

5h 30m

Direct flights

None
The fastest flight from Monterrey to St. Louis takes 5h 30m
There are no direct flights from Monterrey to St. Louis. There are no popular flight routes from Monterrey to St. Louis.
Search flight deals

  • 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 30m, 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
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
Alton
St. Peters
Wentzville
Fenton
Farmington
Clayton
Edwardsville
Festus
Eureka
Litchfield
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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