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Cheap flights from Mexico City Federal District to St. Louis from $204

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 5/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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
11:05 am - 8:55 am
MEX
-
STL
20h 50m
2 stops
Multiple Airlines Logo
3:30 pm - 10:45 pm
STL
-
MEX
8h 15m
1 stop
$369Multiple Airlines
Tue, May 12 - Thu, May 28
Multiple Airlines Logo
8:40 am - 7:23 pm
MEX
-
STL
9h 43m
1 stop
Multiple Airlines Logo
3:33 pm - 10:45 pm
STL
-
MEX
8h 12m
1 stop
$370Multiple Airlines
Thu, May 21 - Tue, May 26
Frontier Logo
8:40 am - 7:23 pm
MEX
-
STL
9h 43m
1 stop
Frontier Logo
3:33 pm - 10:45 pm
STL
-
MEX
8h 12m
1 stop
$381Frontier
Thu, May 21 - Tue, May 26
Multiple Airlines Logo
7:00 am - 7:31 pm
MEX
-
STL
11h 31m
1 stop
Multiple Airlines Logo
3:33 pm - 10:45 pm
STL
-
MEX
8h 12m
1 stop
$383Multiple Airlines
Sat, May 23 - Tue, May 26
Multiple Airlines Logo
7:00 am - 2:31 pm
MEX
-
STL
6h 31m
1 stop
Multiple Airlines Logo
5:27 pm - 12:20 pm
STL
-
MEX
19h 53m
2 stops
$390Multiple Airlines
Thu, Jun 4 - Mon, Jun 8
Frontier Logo
11:05 am - 11:57 pm
MEX
-
STL
11h 52m
1 stop
Frontier Logo
8:16 pm - 5:30 pm
STL
-
MEX
22h 14m
2 stops
$391Frontier
Sat, May 30 - Sat, Jun 6
Frontier Logo
11:05 am - 11:57 pm
MEX
-
STL
11h 52m
1 stop
Frontier Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
$397Frontier
Sat, May 30 - Sat, Jun 6
Frontier Logo
11:05 am - 11:57 pm
MEX
-
STL
11h 52m
1 stop
Frontier Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
$398Frontier
Sat, May 30 - Sat, Jun 20
Multiple Airlines Logo
6:20 am - 4:15 pm
MEX
-
STL
32h 55m
2 stops
Multiple Airlines Logo
3:33 pm - 10:45 pm
STL
-
MEX
8h 12m
1 stop
$399Multiple Airlines
Wed, May 20 - Tue, May 26
Frontier Logo
7:55 pm - 7:23 pm
MEX
-
STL
22h 28m
2 stops
Frontier Logo
8:16 pm - 5:30 pm
STL
-
MEX
22h 14m
2 stops
$400Frontier
Wed, May 20 - Sat, May 23

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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
May 21
MEX8:40 amMexico City Benito Juarez
9h 43m
1 stop
STL7:23 pmLambert-St Louis
May 26
STL3:33 pmLambert-St Louis
8h 12m
1 stop
MEX10:45 pmMexico City Benito Juarez
$381
Frontier
May 30
MEX11:05 amMexico City Benito Juarez
11h 52m
1 stop
STL11:57 pmLambert-St Louis
Jun 6
STL8:16 pmLambert-St Louis
22h 14m
2 stops
MEX5:30 pmMexico City Benito Juarez
$391
Frontier
May 30
MEX11:05 amMexico City Benito Juarez
11h 52m
1 stop
STL11:57 pmLambert-St Louis
Jun 6
STL8:08 pmLambert-St Louis
22h 22m
1 stop
MEX5:30 pmMexico City Benito Juarez
$397

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
Apr 23
MEX2:15 pmMexico City Benito Juarez
7h 13m
1 stop
STL10:28 pmLambert-St Louis
Apr 28
STL6:00 amLambert-St Louis
5h 45m
1 stop
MEX10:45 amMexico City Benito Juarez
$684
United Airlines
Apr 23
MEX6:30 amMexico City Benito Juarez
8h 38m
1 stop
STL4:08 pmLambert-St Louis
Apr 26
STL8:15 pmLambert-St Louis
17h 30m
1 stop
MEX12:45 pmMexico City Benito Juarez
$685
United Airlines
Apr 21
MEX11:35 amMexico City Benito Juarez
11h 22m
2 stops
STL11:57 pmLambert-St Louis
Apr 24
STL6:30 amLambert-St Louis
10h 10m
2 stops
MEX3:40 pmMexico City Benito Juarez
$715

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 April 18, 2026.
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

Cheapest round-trip

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Tue 5/12

11:05 am-8:55 am

2 stops20h 50m

Lambert-St Louis

Thu 5/28

3:30 pm-10:45 pm

1 stop8h 15m

$369
Quickest round-trip

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 5/21

8:40 am-7:23 pm

1 stop9h 43m

Lambert-St Louis

Tue 5/26

3:33 pm-10:45 pm

1 stop8h 12m

$370

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 5/21

8:40 am-7:23 pm

1 stop9h 43m

Lambert-St Louis

Tue 5/26

3:33 pm-10:45 pm

1 stop8h 12m

$381

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 5/23

7:00 am-7:31 pm

1 stop11h 31m

Lambert-St Louis

Tue 5/26

3:33 pm-10:45 pm

1 stop8h 12m

$383

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Thu 6/4

7:00 am-2:31 pm

1 stop6h 31m

Lambert-St Louis

Mon 6/8

5:27 pm-12:20 pm

2 stops19h 53m

$390

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 5/30

11:05 am-11:57 pm

1 stop11h 52m

Lambert-St Louis

Sat 6/6

8:16 pm-5:30 pm

2 stops22h 14m

$391

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 5/30

11:05 am-11:57 pm

1 stop11h 52m

Lambert-St Louis

Sat 6/6

8:08 pm-5:30 pm

1 stop22h 22m

$397

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Sat 5/30

11:05 am-11:57 pm

1 stop11h 52m

Lambert-St Louis

Sat 6/20

8:08 pm-5:30 pm

1 stop22h 22m

$398

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Wed 5/20

6:20 am-4:15 pm

2 stops32h 55m

Lambert-St Louis

Tue 5/26

3:33 pm-10:45 pm

1 stop8h 12m

$399

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

Wed 5/20

7:55 pm-7:23 pm

2 stops22h 28m

Lambert-St Louis

Sat 5/23

8:16 pm-5:30 pm

2 stops22h 14m

$400

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, September 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 $507. The month of August is another great option to travel to St. Louis, with average flight prices from Mexico City Federal District averaging around $572.

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

Fastest flight time

7h 30m

Direct flights

None
The fastest flight from Mexico City Federal District to St. Louis takes 7h 30m
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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Frequently asked questions about flying from Mexico City Federal District to St. Louis

  • 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 $466Free CancellationRating
7.4
9,605 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
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 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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