$182 Find Cheap Flights from St. Louis to Mexico City Federal District

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Mexico City Federal District departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Mexico City Federal District

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Mexico City Federal District, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Mexico City Federal District, as well as popular online travel agencies
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Best Mexico City Federal District Flight Deals from St. Louis

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Mexico City
Mexico City1 stop$428
Mexico City
Mexico City1 stop$428

Cheap Flights from St. Louis to Mexico City Federal District

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Mexico City Federal District that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to Mexico City Federal District

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Mexico City Federal District.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
1:30 pm - 10:55 pmSTL-MEX
10h 25m1 stop
 Logo
5:30 am - 4:00 pmMEX-STL
9h 30m1 stop
Tue, May 13 - Tue, May 20
Air Canada Logo
1:30 pm - 10:55 pmSTL-MEX
10h 25m1 stop
Air Canada Logo
7:10 am - 7:58 pmMEX-STL
11h 48m1 stop
$440Air Canada
Find Deal
Fri, May 16 - Wed, May 21
 Logo
5:45 pm - 7:35 pmSTL-MEX
26h 50m1 stop
 Logo
11:05 am - 11:52 pmMEX-STL
11h 47m1 stop
Sat, May 17 - Thu, May 22
Frontier Logo
6:38 am - 5:20 pmSTL-MEX
11h 42m1 stop
Frontier Logo
7:55 am - 9:05 pmMEX-STL
12h 10m2 stops
$486Frontier
Find Deal
Wed, May 14 - Mon, May 19
Delta Logo
6:00 am - 2:55 pmSTL-MEX
9h 55m2 stops
Delta Logo
8:40 am - 8:39 pmMEX-STL
10h 59m1 stop
$488Delta
Find Deal
Tue, May 13 - Tue, May 20
United Airlines Logo
6:30 am - 3:40 pmSTL-MEX
10h 10m2 stops
United Airlines Logo
2:15 pm - 10:15 pmMEX-STL
7h 00m1 stop
$505United Airlines
Find Deal
Sat, May 17 - Thu, May 22
Delta Logo
10:05 am - 10:05 pmSTL-MEX
13h 00m2 stops
Delta Logo
7:05 am - 6:01 pmMEX-STL
9h 56m1 stop
$509Delta
Find Deal
Fri, May 23 - Mon, May 26
Frontier Logo
5:45 pm - 10:35 amSTL-MEX
17h 50m2 stops
Frontier Logo
11:05 am - 11:37 pmMEX-STL
11h 32m1 stop
$530Frontier
Find Deal
Tue, May 27 - Tue, Jun 3
United Airlines Logo
11:05 am - 3:40 pmSTL-MEX
5h 35m1 stop
United Airlines Logo
4:40 am - 2:26 pmMEX-STL
8h 46m1 stop
$558United Airlines
Find Deal
Tue, Aug 19 - Sun, Aug 24
American Airlines Logo
5:25 am - 8:15 pmSTL-MEX
15h 50m1 stop
American Airlines Logo
5:00 am - 6:33 pmMEX-STL
12h 33m1 stop
$577American Airlines
Find Deal
Thu, Jul 3 - Sun, Jul 13
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KAYAK's insights & trends for St. Louis to Mexico City Federal District flights

Get data-powered insights and trends into flights from St. Louis to Mexico City Federal District to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Mexico City Federal District?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Mexico City Federal District, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Mexico City Federal District is May, when tickets cost $557 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is $770 and $736 respectively.

What’s the cheapest day of the week to fly from St. Louis to Mexico City Federal District?

The average price of all round-trip flights from St. Louis to Mexico City Federal District clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Mexico City Federal District, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Mexico City Federal District, Wednesday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from St. Louis to Mexico City Federal District?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Mexico City Federal District, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Mexico City Federal District, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.


Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$182
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from St. Louis to Mexico City

FAQs - booking Mexico City Federal District flights

  • How does KAYAK find such low prices on flights from St. Louis to Mexico City Federal District?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Mexico City Federal District.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Mexico City Federal District?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Mexico City Federal District is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Mexico City Federal District?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Mexico City Federal District with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Mexico City Federal District?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Mexico City Federal District up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Mexico City Federal District?

    The cheapest time of day to fly to Mexico City Federal District is generally in the afternoon, when round-trip flights cost $566 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Mexico City Federal District is generally in the evening, which is peak travel time and where the average cost of a ticket is $621.

Top 5 airlines serving from St. Louis to Mexico City Federal District

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Mexico City Federal District. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Mexico City Federal District? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7936 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Lousy No wheelchair. As normal at Atlanta Cheap airline Cheap aero plane. - Neither entertainment nor food on a 5 hour saga

The airplane was an old airplane, seats were very uncomfortable and very little space, they changed my seat and that was no option to get back into my seat even when I was traveling a senior who required assistance.

This is not a low cost airline. Stop acting like o e.

Aeromexico crew made me check my hand luggage in the door of the plane. As soon as I reach Mexico City, I notice that my luggage was opened and 8 games of Nintendo Switch were stolen (700 dllrs value aprox) (the console was there) but the games were stolen. I am very dissapointed of Aeromexico and all the crew. Instead of being a good trip, It was a sad trip

Ok. But we arrived to a remote terminal which meant that a bus had to take us to the terminal building

Old aircraft the audio of the entertainment dosent work Dirty seats

The plane was so outdated, that it made it uncomfortable. The temperature was hot during the whole flight

Happy attentive flight crew. All in all good flight the night flight works well. Getting into Mexico City early so you don't get caught up it all the immigration and custom ques, additionally, this helps when exiting the airport and crossing the city to your final destination. All works very well and would do it again

Some entertainment and food/snack service would have been nice

All the pessengers should be wait in a line útil the creo and piloto are arrived.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

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