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Cheap flights from Monterrey to St. Louis from $299

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 9/11. 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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0 bags

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Find the cheapest flights from Monterrey to St. Louis

Cheap round-trip flights

United Airlines Logo
5:25 am - 4:33 pmMTY-STL
10h 08m2 stops
United Airlines Logo
5:30 pm - 11:41 amSTL-MTY
19h 11m1 stop
$524United Airlines
Find Deal
Sat, Aug 30 - Sun, Aug 31
United Airlines Logo
5:25 am - 4:33 pmMTY-STL
10h 08m2 stops
United Airlines Logo
5:30 pm - 8:37 amSTL-MTY
16h 07m2 stops
$648United Airlines
Find Deal
Sat, Aug 30 - Sun, Aug 31
Logo
6:10 am - 1:32 pmMTY-STL
30h 22m3 stops
Logo
5:15 pm - 11:57 amSTL-MTY
19h 42m3 stops
$674
Find Deal
Sat, Aug 30 - Sun, Aug 31
Logo
6:10 am - 1:32 pmMTY-STL
30h 22m3 stops
Logo
4:00 pm - 8:35 amSTL-MTY
17h 35m2 stops
$718
Find Deal
Sat, Aug 30 - Sun, Aug 31

United Airlines flights from Monterrey to St. Louis

Our best United Airlines deals on Monterrey to St. Louis flight tickets
United Airlines
Aug 30
MTY5:25 amMonterrey Gen Mariano Escobedo
10h 08m
2 stops
STL4:33 pmLambert-St Louis
Aug 31
STL5:30 pmLambert-St Louis
19h 11m
1 stop
MTY11:41 amMonterrey Gen Mariano Escobedo
$524
Find similar
United Airlines
Aug 30
MTY5:25 amMonterrey Gen Mariano Escobedo
10h 08m
2 stops
STL4:33 pmLambert-St Louis
Aug 31
STL5:30 pmLambert-St Louis
16h 07m
2 stops
MTY8:37 amMonterrey Gen Mariano Escobedo
$648
Find similar

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 July 31, 2025.
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

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Sat 8/30

5:25 am-4:33 pm

2 stops10h 08m

Lambert-St Louis

Sun 8/31

5:30 pm-11:41 am

1 stop19h 11m

$524

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Sat 8/30

5:25 am-4:33 pm

2 stops10h 08m

Lambert-St Louis

Sun 8/31

5:30 pm-8:37 am

2 stops16h 07m

$648

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Sat 8/30

6:10 am-1:32 pm

3 stops30h 22m

Lambert-St Louis

Sun 8/31

5:15 pm-11:57 am

3 stops19h 42m

$674

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Sat 8/30

6:10 am-1:32 pm

3 stops30h 22m

Lambert-St Louis

Sun 8/31

4:00 pm-8:35 am

2 stops17h 35m

$718

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 9/11

11:15 am-9:06 am

2 stops20h 51m

$299

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 9/11

5:00 pm-4:35 pm

3 stops22h 35m

$312

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

Thu 9/11

12:12 pm-11:24 pm

1 stop10h 12m

$339

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 time of day to depart on your flight to St. Louis?

Flying to St. Louis from Monterrey in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $515 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $585 per ticket.

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

Best Price Found

$299

Fastest flight time

10h 08m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Monterrey in the past 72 hours is $299. The best round-trip flight deal from Monterrey to St. Louis found on momondo in the last 72 hours is $524.
The fastest flight from Monterrey to St. Louis takes 10h 08m
There are no direct flights from Monterrey to St. Louis. Popular non-direct route for this connection is Monterrey Gen Mariano Escobedo Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
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  • 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 10h 08m, 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
Maryland Heights
Florissant
Fenton
Collinsville
O'Fallon
Alton
St. Peters
Farmington
Wentzville
Festus
Glencoe
Eureka
Edwardsville
Clayton
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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