$183 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 6/8. 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.
1 adult
1 adult, Economy, 0 bags

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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Book Cheap St. Louis to Mexico City Federal District Plane Tickets

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Tue, May 26 - Mon, Jun 1
Multiple Airlines Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
Multiple Airlines Logo
10:05 am - 5:33 pm
MEX
-
STL
30h 28m
2 stops
$313Multiple Airlines
Wed, May 27 - Mon, Jun 1
Multiple Airlines Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
Multiple Airlines Logo
10:05 am - 5:33 pm
MEX
-
STL
30h 28m
2 stops
$330Multiple Airlines
Tue, Jun 2 - Tue, Jun 9
Frontier Logo
3:33 pm - 10:45 pm
STL
-
MEX
8h 12m
1 stop
Frontier Logo
7:00 am - 6:24 pm
MEX
-
STL
10h 24m
1 stop
$366Frontier
Mon, May 25 - Mon, Jun 1
Multiple Airlines Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
Multiple Airlines Logo
10:05 am - 5:33 pm
MEX
-
STL
30h 28m
2 stops
$367Multiple Airlines
Tue, May 26 - Sat, May 30
Multiple Airlines Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
Multiple Airlines Logo
7:00 am - 7:31 pm
MEX
-
STL
11h 31m
1 stop
$375Multiple Airlines
Tue, Jun 2 - Mon, Jun 8
Multiple Airlines Logo
3:33 pm - 10:45 pm
STL
-
MEX
8h 12m
1 stop
Multiple Airlines Logo
6:20 am - 5:30 pm
MEX
-
STL
34h 10m
2 stops
$391Multiple Airlines
Wed, May 27 - Sat, May 30
Multiple Airlines Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
Multiple Airlines Logo
7:00 am - 7:31 pm
MEX
-
STL
11h 31m
1 stop
$392Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
8:08 pm - 10:15 pm
STL
-
MEX
27h 07m
2 stops
Frontier Logo
11:05 am - 12:09 am
MEX
-
STL
12h 04m
1 stop
$397Frontier
Tue, Jun 2 - Tue, Jun 9
Multiple Airlines Logo
3:33 pm - 10:45 pm
STL
-
MEX
8h 12m
1 stop
Multiple Airlines Logo
6:20 am - 8:47 am
MEX
-
STL
25h 27m
2 stops
$401Multiple Airlines
Tue, May 26 - Mon, Jun 1
Multiple Airlines Logo
8:08 pm - 5:30 pm
STL
-
MEX
22h 22m
1 stop
Multiple Airlines Logo
11:05 am - 11:57 pm
MEX
-
STL
11h 52m
1 stop
$405Multiple Airlines
Booking Insights

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.

How much is a round-trip flight from St. Louis to Mexico City Federal District?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Mexico City Federal District departing in May.

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 $306 (return) on average. On the other hand, the most expensive months are March and January, when the average cost of round-trip tickets is $550 and $548 respectively.

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, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$183
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 3% 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.

Reviews of the top 4 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.
7.9
DeltaOverall score based on 8466 reviews
8.1Boarding
7.2Food
7.8Entertainment
8.5Crew
7.9Comfort
Airline reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

8.0 ExcellentMatthew, May 2026
OKC - ATL
Read more Delta reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

The flight attendant on my side of business class seemed like a novice and did not provide good service. Otherwise the flight was good and the entertainment system was very good. No free WiFi.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

Everything you need to know for your flight from St. Louis to Mexico City Federal District

Information on your arrival and departure airports