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Cheap flights from Mexico City Federal District to St. Louis from $280

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Mexico City Federal District to St. Louis departing on 12/13. 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 Mexico City Federal District to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 am - 10:02 amMEX-STL
25h 52m1 stop
Multiple Airlines Logo
5:11 pm - 10:00 pmSTL-MEX
52h 49m2 stops
$380Multiple Airlines
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Thu, Jan 8 - Mon, Jan 12
Multiple Airlines Logo
11:10 am - 11:33 pmMEX-STL
12h 23m1 stop
Multiple Airlines Logo
3:46 pm - 4:20 amSTL-MEX
36h 34m2 stops
$397Multiple Airlines
Find Deal
Mon, Feb 2 - Sat, Feb 7
Frontier Logo
11:10 am - 11:33 pmMEX-STL
12h 23m1 stop
Frontier Logo
10:16 am - 7:45 pmSTL-MEX
9h 29m1 stop
$406Frontier
Find Deal
Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
8:10 am - 10:02 amMEX-STL
25h 52m1 stop
Multiple Airlines Logo
1:07 pm - 8:05 pmSTL-MEX
30h 58m1 stop
$411Multiple Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
12:25 pm - 10:58 pmMEX-STL
10h 33m2 stops
United Airlines Logo
1:15 pm - 12:10 amSTL-MEX
10h 55m2 stops
$431United Airlines
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Thu, Jan 22 - Mon, Jan 26
Delta Logo
6:40 am - 5:50 pmMEX-STL
11h 10m2 stops
Delta Logo
12:00 pm - 8:50 pmSTL-MEX
8h 50m1 stop
$432Delta
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Thu, Jan 22 - Mon, Jan 26
Delta Logo
2:10 pm - 8:37 pmMEX-STL
6h 27m1 stop
Delta Logo
6:00 am - 8:50 pmSTL-MEX
14h 50m1 stop
$433Delta
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Thu, Jan 22 - Mon, Jan 26
Frontier Logo
12:40 am - 11:33 pmMEX-STL
22h 53m2 stops
Frontier Logo
6:00 am - 5:15 pmSTL-MEX
11h 15m1 stop
$459Frontier
Find Deal
Sun, Feb 1 - Sat, Feb 7
United Airlines Logo
5:45 am - 9:55 pmMEX-STL
16h 10m1 stop
United Airlines Logo
6:40 pm - 1:35 pmSTL-MEX
18h 55m1 stop
$466United Airlines
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Sat, Dec 20 - Wed, Jan 7
Frontier Logo
11:05 am - 10:33 pmMEX-STL
10h 28m1 stop
Frontier Logo
10:42 am - 10:45 pmSTL-MEX
13h 03m2 stops
$471Frontier
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Mon, Mar 30 - Tue, Apr 7

Frontier flights from Mexico City Federal District to St. Louis

Our best Frontier deals on Mexico City Federal District to St. Louis flight tickets
Frontier
Jan 22
MEX11:10 amMexico City Benito Juarez
12h 23m
1 stop
STL11:33 pmLambert-St Louis
Jan 26
STL10:16 amLambert-St Louis
9h 29m
1 stop
MEX7:45 pmMexico City Benito Juarez
$406
Find similar
Frontier
Feb 1
MEX12:40 amMexico City Benito Juarez
22h 53m
2 stops
STL11:33 pmLambert-St Louis
Feb 7
STL6:00 amLambert-St Louis
11h 15m
1 stop
MEX5:15 pmMexico City Benito Juarez
$459
Find similar
Frontier
Mar 30
MEX11:05 amMexico City Benito Juarez
10h 28m
1 stop
STL10:33 pmLambert-St Louis
Apr 7
STL10:42 amLambert-St Louis
13h 03m
2 stops
MEX10:45 pmMexico City Benito Juarez
$471
Find similar

United Airlines flights from Mexico City Federal District to St. Louis

Our best United Airlines deals on Mexico City Federal District to St. Louis flight tickets
United Airlines
Jan 22
MEX12:25 pmMexico City Benito Juarez
10h 33m
2 stops
STL10:58 pmLambert-St Louis
Jan 26
STL1:15 pmLambert-St Louis
10h 55m
2 stops
MEX12:10 amMexico City Benito Juarez
$431
Find similar
United Airlines
Nov 24
MEX10:05 amMexico City Benito Juarez
11h 49m
2 stops
STL9:54 pmLambert-St Louis
Dec 1
STL8:20 amLambert-St Louis
10h 35m
1 stop
MEX6:55 pmMexico City Benito Juarez
$463
Find similar
United Airlines
Dec 20
MEX5:45 amMexico City Benito Juarez
16h 10m
1 stop
STL9:55 pmLambert-St Louis
Jan 7
STL6:40 pmLambert-St Louis
18h 55m
1 stop
MEX1:35 pmMexico City Benito Juarez
$466
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Mexico City Federal District 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 November 20, 2025.
Use the filters below to find and compare flights from Mexico City Federal District to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 1/8

8:10 am-10:02 am

1 stop25h 52m

Lambert-St Louis

Mon 1/12

5:11 pm-10:00 pm

2 stops52h 49m

$380

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Mon 2/2

11:10 am-11:33 pm

1 stop12h 23m

Lambert-St Louis

Sat 2/7

3:46 pm-4:20 am

2 stops36h 34m

$397

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 1/22

11:10 am-11:33 pm

1 stop12h 23m

Lambert-St Louis

Mon 1/26

10:16 am-7:45 pm

1 stop9h 29m

$406

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 1/8

8:10 am-10:02 am

1 stop25h 52m

Lambert-St Louis

Mon 1/12

1:07 pm-8:05 pm

1 stop30h 58m

$411

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 1/22

12:25 pm-10:58 pm

2 stops10h 33m

Lambert-St Louis

Mon 1/26

1:15 pm-12:10 am

2 stops10h 55m

$431

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 1/22

6:40 am-5:50 pm

2 stops11h 10m

Lambert-St Louis

Mon 1/26

12:00 pm-8:50 pm

1 stop8h 50m

$432

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 1/22

2:10 pm-8:37 pm

1 stop6h 27m

Lambert-St Louis

Mon 1/26

6:00 am-8:50 pm

1 stop14h 50m

$433

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sun 2/1

12:40 am-11:33 pm

2 stops22h 53m

Lambert-St Louis

Sat 2/7

6:00 am-5:15 pm

1 stop11h 15m

$459

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 12/20

5:45 am-9:55 pm

1 stop16h 10m

Lambert-St Louis

Wed 1/7

6:40 pm-1:35 pm

1 stop18h 55m

$466

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Mon 3/30

11:05 am-10:33 pm

1 stop10h 28m

Lambert-St Louis

Tue 4/7

10:42 am-10:45 pm

2 stops13h 03m

$471

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Mexico City Federal District 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 month to fly to St. Louis?

In general, March is the cheapest month to fly from Mexico City Federal District to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $449. The month of September is another great option to travel to St. Louis, with average flight prices from Mexico City Federal District averaging around $507.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $465. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $778. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Mexico City Federal District at noon is the least expensive time of day to depart. momondo users have found prices as low as $465 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $695 per ticket.

Cheap Mexico City Federal District to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Mexico City Federal District to St. Louis

Direct flights

None
There are no direct flights from Mexico City Federal District to St. Louis. There are no popular flight routes from Mexico City Federal District to St. Louis.
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  • When did momondo last update prices for flights from Mexico City Federal District to Lambert-St Louis Airport?

    Prices for flights from Mexico City Federal District to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Mexico City Federal District to Lambert-St Louis Airport?

  • How old do you have to be to fly from Mexico City Federal District to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Mexico City Federal District to Lambert-St Louis Airport.

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

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Mexico City Federal District to St. Louis

Compare and see reviews for airlines that fly from Mexico City Federal District to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $501Free CancellationRating
7.4
9,026 reviews
Search United Airlines flights

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
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Mexico City Federal District to St. Louis?

It is quick and easy to find Mexico City Federal District to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights from Mexico City Federal District to St. Louis with flexible booking policies on momondo?

Flights from Mexico City Federal District 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 Mexico City Federal District to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Mexico City Federal District.

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

Of course. momondo tracks the price of Mexico City Federal District to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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