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STL - MEX

$180 Find cheap flights from St. Louis to Mexico City

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 departing on 8/13. 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
0 bags
Fri 6/14
Fri 6/21

Search hundreds of travel sites at once for deals on flights to Mexico City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Mexico City, 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, as well as popular online travel agencies
In the last 7 days travelers have searched 42,566,405 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from St. Louis to Mexico City (STL-MEX)

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 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 and deals for you by selecting your travel dates.
Choose your dates
11:57 am - 7:35 pmSTL-MEX
8h 38m1 stop
11:45 am - 10:42 amMEX-STL
21h 57m1 stop
Tue, Jun 11 - Tue, Jun 18
7:29 pm - 9:10 pmSTL-MEX
26h 41m1 stop
5:25 am - 5:44 pmMEX-STL
11h 19m1 stop
Mon, Aug 19 - Sun, Aug 25
11:26 am - 7:35 pmSTL-MEX
9h 09m1 stop
11:15 pm - 5:44 pmMEX-STL
17h 29m1 stop
Tue, Jul 16 - Tue, Jul 23
7:29 pm - 9:10 pmSTL-MEX
26h 41m1 stop
3:30 pm - 12:58 pmMEX-STL
20h 28m1 stop
$451Frontier
Find Deal
Mon, Jun 17 - Sun, Jun 23
7:44 pm - 5:55 pmSTL-MEX
23h 11m2 stops
11:15 pm - 5:43 pmMEX-STL
17h 28m1 stop
Tue, Jun 11 - Tue, Jun 18
6:00 am - 4:15 pmSTL-MEX
11h 15m2 stops
11:05 pm - 3:57 pmMEX-STL
15h 52m2 stops
$515Aeromexico
Find Deal
Thu, Aug 8 - Mon, Aug 12
6:06 am - 12:40 pmSTL-MEX
7h 34m1 stop
7:35 am - 9:35 pmMEX-STL
13h 00m2 stops
$519Delta
Find Deal
Wed, Jul 10 - Mon, Jul 15
6:00 am - 2:35 pmSTL-MEX
9h 35m2 stops
8:55 am - 11:39 pmMEX-STL
13h 44m2 stops
$535Delta
Find Deal
Mon, Aug 19 - Sun, Aug 25
5:31 pm - 8:40 amSTL-MEX
16h 09m2 stops
2:15 pm - 3:41 pmMEX-STL
24h 26m2 stops
$654United Airlines
Find Deal
Mon, Jun 17 - Sun, Jun 23
5:04 am - 11:30 amSTL-MEX
7h 26m1 stop
12:40 pm - 12:03 amMEX-STL
10h 23m1 stop
$712American Airlines
Find Deal
Tue, Jun 4 - Sun, Jun 9

Flights from St. Louis to Mexico City - Travel Insights & Trends

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

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

The average price of all flights from St. Louis to Mexico City clicked on KAYAK for each day over the last 12 months.
For St. Louis to Mexico City, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Mexico City back to St. Louis, the best deals are generally found on Saturday, with Tuesday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Mexico City, 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 is January, where tickets cost $577 on average. On the other hand, the most expensive months are December and August, where the average cost of tickets is $731 and $693 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Mexico City, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Mexico City, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 52 days before departure.

Which airlines provide the cheapest flights from St. Louis to Mexico City?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from St. Louis to Mexico City found by KAYAK users in the last 72 hours was for $451 on Frontier, followed by Volaris ($495). One-way flight deals have also been found from as low as $218 on Frontier and from $235 on Volaris.

Good to know

Low season

April

High season

December

Cheapest flight

$180
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from St. Louis to Mexico City

When to book flights from St. Louis to Mexico City

Are your dates flexible? Find out the best times to travel from St. Louis to Mexico City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Mexico City

  • What is the cheapest flight from St. Louis to Mexico City?

    In the last 3 days, the lowest price for a flight from St. Louis to Mexico City was $180 for a one-way ticket and $414 for a round-trip.

  • Do I need a passport to fly between St. Louis and Mexico City?

    A passport is required to fly from St. Louis to Mexico City.

  • Which airports will I be using when flying from St. Louis to Mexico City?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Mexico City, also known as Mexico City Benito Juarez.

  • Which aircraft models fly most regularly from St. Louis to Mexico City?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Mexico City?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between St. Louis and Mexico City, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Mexico City, Delta or Aeromexico?

    The two airlines most popular with KAYAK users for flights from St. Louis to Mexico City are Delta and Aeromexico. With an average price for the route of $636 and an overall rating of 8.0, Delta is the most popular choice. Aeromexico is also a great choice for the route, with an average price of $617 and an overall rating of 7.6.

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

    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.

  • 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?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Mexico City from St. Louis 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?

    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 to Mexico City with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and MEX can sometimes prove cheaper using this method.

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

    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 to Mexico City from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from St. Louis to Mexico City

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Mexico City. 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? 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 10691 reviews
8.6Crew
7.9Comfort
7.4Food
8.0Entertainment
8.2Boarding
Airline reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

2.0 MediocreDevan, May 2024AUS - BOS
Read more about Delta reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

The plane was FREEZING SEATS UNCOMFORTABLE Otherwise smooth Thank you

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

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

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

Planes seat could be bigger very uncomfortable for tall humans.

Atraso de dos horas y media con vuelos sobre vendidos

Great airplane The confort was within the high standards. My only little problem was That all the movies ( only 3) was on Spanish, even though I was selecting the audio on English it didn't happen. After that I highly recommend aeromexico

We were sitting on the plane for half an hour before we arrived at the gate after landing. We had to wait half an hour to collect our luggage.

Made payment for extra baggage online. When I got to check-in, they made me pay again. Lesson learned - Dont buy extra luggage allowence online, only pay at check-in.

Cons: "Plane delayed on tarmac on arrival. Immigration line was chaos with no staff helping to provide order. Missed my connection and changed to another flight the next morning - aeromexico would not pay for hotel or taxi. Supervisors were rude and dismissive, didn’t care about effect on my plans."
Cons: "Nice flt, competent and diligent cabin crew. But at ck in they assessed a $20.25 carryon bag fee even though my reservation via Kayak said one carryon was included. (It was within their weight and size limits) Even with empty seats they assigned me the non reclining row that abuts the restrooms (noise, smells, etc.)"

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in flight WiFi Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay (especially this much) for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a terrible attitude for no reason, nor will they act the way this woman did. Unacceptable.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in-flight WiFi. Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay that much for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a shitty attitude for no reason, nor will they act the way this woman did. Unacceptable.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Overall good flight. The flight attendants were annoying and unfriendly. They would ask me to grab someone else’s trash can just waiting until the person woke up or after the flight is done. It’s not my job to pick up someone else’s trash. Especially when it’s not easily reachable.

The WiFi tv wasn’t working. The flight was over sold and moved several times. The gate assignment appeared on the screens right as we were supposed to board. Because of the flight being over sold we were almost stuck in Cancun for a couple of a days. The flight attendants were unfriendly and would wake you up to pick up other people’s trash.

The reason we chose Volaris to fly from LAX to Mazatlan, Mexico was because of the DATES and TIMES for the NON-STOP flights. When those flights got Totally Changed that was UNACCEPTABLE ! ! ! Also, when my husband Died unexpectedly, the Only statement that Customer Service kept repeating was "they would only offer Credit on a future flight". REALLY?! Volaris was only going to offer CREDIT on another flight to a DEAD PERSON ! ! !

Service of the person who gave us the boarding pass

Overall good but we had a minor scare when a wind shear caused the plane to re take off on the first landing attempt. The crew handled it well and we landed safely on the second attempt

It was unfortunate that I paid more than $120 one way to carry on my luggage to only have to have them checked baggage. We board the flight and there’s a lot of overhead space. They checked our bags in Group 2 but Group 3 was able to board with their luggage. I would not fly Volaris again. The flight attendance on the plane was very nice but the employees at the gate prior to boarding was very rude.

For the price, you pretty much can't beat this airlines. As far as comfort, you could do a lot better, but it'll cost you. Over all cheapest way to get from point A to point B.

To many extra fees, poor customer service and very uncomfortable flight. No leg room and seat wont recline.

I am disabled and was unable to get any assistance from Volaris. I had to wait in line at front desk for 45 minutes, I am by myself, and unable to stand. When I got to front desk check in, they had no assistance for me. I did however, have wheelchair assistance when I arrived in Mexico City. Thank God for that!

It was horrible, our flight back was overbooked and had to take a flight 12hours later in the day but to LAX. Volaris is horrible.

Book cheap flights from St. Louis to Mexico City

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Mexico City found on KAYAK in the last 72 hours.
8/13Tue
1 stop
26h 41mSTL-MEX
$180
7/2Tue
1 stop
8h 38mSTL-MEX
$192
7/2Tue
1 stop
8h 38mSTL-MEX
$198
8/14Wed
1 stop
10h 34mSTL-MEX
$204
8/17Sat
1 stop
14h 10mSTL-MEX
$208
8/31Sat
1 stopFrontier
13h 37mSTL-MEX
$218
8/15Thu
1 stopVolaris
14h 07mSTL-MEX
$235
8/11Sun
1 stopFrontier
13h 37mSTL-MEX
$238
7/2Tue
2 stopsDelta
10h 30mSTL-MEX
$295
6/22Sat
1 stopAmerican Airlines
7h 41mSTL-MEX
$315

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Last minute flights from St. Louis to Mexico City

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Mexico City that are departing in the next 10 days.
5/18Sat
multi-stop
17h 35mSTL-MEX
5/20Mon
multi-stop
22h 18mMEX-STL
$546
5/19Sun
multi-stop
18h 45mSTL-MEX
5/24Fri
multi-stop
16h 35mMEX-STL
$590
5/18Sat
multi-stop
17h 50mSTL-MEX
5/20Mon
multi-stop
34h 30mMEX-STL
$613
5/18Sat
multi-stopVolaris
13h 42mSTL-MEX
5/20Mon
multi-stopVolaris
17h 23mMEX-STL
$619
5/18Sat
multi-stopAeromexico
6h 37mSTL-MEX
5/22Wed
multi-stopAeromexico
9h 25mMEX-STL
$885
5/19Sun
multi-stopDelta
7h 29mSTL-MEX
5/24Fri
multi-stopDelta
7h 10mMEX-STL
$1,165
5/19Sun
multi-stopDelta
7h 29mSTL-MEX
5/24Fri
multi-stopDelta
11h 45mMEX-STL
$1,169
5/19Sun
multi-stopUnited Airlines
16h 05mSTL-MEX
5/24Fri
multi-stopUnited Airlines
16h 28mMEX-STL
$1,199
5/19Sun
multi-stopUnited Airlines
5h 31mSTL-MEX
5/24Fri
multi-stopUnited Airlines
14h 45mMEX-STL
$1,299
5/19Sun
multi-stopAmerican Airlines
22h 30mSTL-MEX
5/24Fri
multi-stopAmerican Airlines
15h 54mMEX-STL
$1,360

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St. Louis - Mexico City Flights

Departure:

St. Louis (undefined)United States

Destination:

Mexico City (MEX)Mexico

Return flight deals:

Mexico City - St. Louis

Cabin classes: