$201 Find Cheap Flights from Mexico to St. Louis - Compare and Save

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Cheap Flights from Mexico to St. Louis

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

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

Wed, Nov 25 - Wed, Dec 2
American Airlines Logo
3:53 pm - 11:49 pmSJD  San José del Cabo Los Cabos-STL Lambert-St Louis
6h 56m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
5:50 am - 10:53 amSTL  Lambert-St Louis-SJD San José del Cabo Los Cabos
6h 03m1 stop Dallas/Fort Worth
$378American Airlines
Fri, Dec 4 - Wed, Dec 9
Multiple Airlines Logo
8:00 am - 10:57 amMEX  Mexico City Benito Juarez-STL Lambert-St Louis
26h 57m1 stop Denver Intl
Multiple Airlines Logo
12:02 pm - 10:55 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
10h 53m2 stops Atlanta Hartsfield-Jackson Houston George Bush Intcntl
$416Multiple Airlines
Wed, Nov 25 - Wed, Dec 2
United Airlines Logo
2:11 pm - 10:32 amSJD  San José del Cabo Los Cabos-STL Lambert-St Louis
19h 21m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
8:30 am - 11:43 amSTL  Lambert-St Louis-SJD San José del Cabo Los Cabos
28h 13m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl
$417United Airlines
Wed, Nov 25 - Wed, Dec 2
United Airlines Logo
2:11 pm - 2:13 pmSJD  San José del Cabo Los Cabos-STL Lambert-St Louis
23h 02m1 stop Houston George Bush Intcntl
United Airlines Logo
8:30 am - 11:43 amSTL  Lambert-St Louis-SJD San José del Cabo Los Cabos
28h 13m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl
$417United Airlines
Fri, Dec 4 - Wed, Feb 3
Frontier Logo
8:00 am - 10:57 amMEX  Mexico City Benito Juarez-STL Lambert-St Louis
26h 57m1 stop Denver Intl
Frontier Logo
7:02 pm - 4:50 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
21h 48m1 stop Denver Intl
$436Frontier
Fri, Dec 4 - Wed, Dec 9
Volaris Logo
11:10 am - 12:12 amMEX  Mexico City Benito Juarez-STL Lambert-St Louis
13h 02m1 stop Orlando
Volaris Logo
6:00 am - 11:20 pmSTL  Lambert-St Louis-MEX Mexico City Benito Juarez
17h 20m1 stop Cancun
$461Volaris
Wed, Dec 2 - Sat, Jan 2
Frontier Logo
2:08 pm - 4:28 pmCUN  Cancun-STL Lambert-St Louis
3h 20mnonstop
Frontier Logo
6:00 am - 10:28 amSTL  Lambert-St Louis-CUN Cancun
3h 28mnonstop
$473Frontier
Wed, Dec 2 - Wed, Jan 6
Delta Logo
8:15 am - 6:13 pmCUN  Cancun-STL Lambert-St Louis
10h 58m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 12:37 pmSTL  Lambert-St Louis-CUN Cancun
5h 37m1 stop Atlanta Hartsfield-Jackson
$483Delta
Wed, Dec 2 - Wed, Jan 6
Delta Logo
8:00 am - 12:05 amCUN  Cancun-STL Lambert-St Louis
17h 05m2 stops Mexico City Benito Juarez Atlanta Hartsfield-Jackson
Delta Logo
12:01 pm - 9:30 pmSTL  Lambert-St Louis-CUN Cancun
8h 29m1 stop Atlanta Hartsfield-Jackson
$483Delta
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
2:03 pm - 5:05 pmPVR  Puerto Vallarta Ordaz-STL Lambert-St Louis
27h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
6:30 am - 1:27 pmSTL  Lambert-St Louis-PVR Puerto Vallarta Ordaz
6h 57m1 stop Chicago O'Hare Intl
$564United Airlines
Booking Insights

KAYAK's insights & trends for flights to St. Louis

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

What is the cheapest day to fly to St. Louis?

Based on KAYAK data, the cheapest day to fly to St. Louis is Friday where round-trip tickets can be as cheap as $375. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $613 on average.

What is the cheapest month to fly to St. Louis?

The cheapest month for flights to St. Louis is May, where tickets cost $499 on average for return flights. On the other hand, the most expensive months are April and March, where the average cost of tickets from Mexico is $785 and $757 respectively. For one-way flights, the best month to travel is June with an average price of $299.

What is the cheapest time of day to fly to St. Louis?

The cheapest time of day to fly to St. Louis is generally in the afternoon, when round-trip flights cost $187 on average. The most expensive time of day to fly to St. Louis is generally in the morning, which is peak travel time and where the average cost of a ticket is $514.

What is a good deal for flights to St. Louis?

If you’re looking for cheap airfare to St. Louis, 25% of our users found tickets to St. Louis for the following prices or less: From Cancun $582 round-trip.

Good to know

Low season

November
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 15% lower on average.

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    The distance between Lambert-St Louis Airport and downtown St. Louis is 13 miles.

  • What is the name of St. Louis’s airport?

    When flying to St. Louis, you'll arrive at Lambert-St Louis Airport (STL). The airport is also known as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • How much is a flight to St. Louis?

    On average, a flight to St. Louis costs $461. The cheapest price found on KAYAK in the last 2 weeks cost $219 and departed from Cancun Airport.

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

    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 to St. Louis.

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

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

    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 St. Louis 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 to St. Louis?

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

Top tips for finding cheap flights to St. Louis

  • Looking for cheap airfare to St. Louis? 25% of our users found round-trip tickets to St. Louis for the following prices or less: From Cancun $442

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top 3 airlines serving from Mexico to St. Louis

 
Need help choosing which airline to fly with to St. Louis? 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.
7.8
DeltaOverall score based on 8690 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.8Comfort
Airline reviews

Flew in first class. It received service and attention that would be considered poor even by economy standards.

2.0 MediocrePaul, Sep 2026
Read more Delta reviews

Flew in first class. It received service and attention that would be considered poor even by economy standards.

The internet was spotty and I was unable to watch any movies on my iPad; the flight was fine otherwise

The plane was very warm the entire time, despite my vents being open. Additionally, we didn't have internet on our personal devices

We departed early and made up time in the air allowing us to arrive 30 minutes early. Capt was incredibly genuine and thanked every passenger for flying with Delta. Completely humble and professional!

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

On 2 different flights the wifi was horrible and there was no drink or snack service.

There was no FREE wi-fi nor entertainment screens at all.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

As we lined up to board they gave our plane to a flight going to Newark. So then we got delayed until they could find another plane. Flight crew was ok. I’m assuming since it’s a shorter flight they only offered water and coffee.

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

The rear seat on the second leg should be illegal. There’s no way you should make somebody sit that close to the washroom. Very awkward.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Air was off while waiting on the runway and the temperatures became very uncomfortably hot. Flight attendants were very loud and rude the entire flight.

I booked tickets from San Diego to Cincinnati months in advance to attend my sister’s wedding, a wedding where I was serving as the officiant. At 10:00 PM the night before my 6:00 AM flight (just 8 hours before departure), I received an alert that my first leg to Denver was delayed, causing me to miss my connecting flight to Cincinnati. When I called Frontier customer service, they informed me that they couldn't get me on any other flight that would get me there in time for the Saturday wedding, let alone the rehearsal dinner. Because I had a critical role in the wedding, I was forced to buy a last-minute ticket on another airline for three times the original price, costing me well over $1,000 extra. Even with the emergency flight, I still missed the rehearsal dinner entirely. When I spoke with Frontier, they agreed to refund my original ticket, but showed zero care or accountability for the massive financial burden and distress they caused. Their "compensation" for causing me to spend an extra $1,000+ and miss an irreplaceable family event? A $75 Frontier voucher. Frontier completely dropped the ball. Their customer service showed zero empathy, and their reliability is non-existent. I will never fly Frontier again, and no one else should either if they actually need to get where they want to go. Tip for anyone flying from Denver to Cincinnati: Avoid Frontier connecting flights or layovers at all costs, especially for time-sensitive events. Book direct flights with an airline that actually offers reliable customer support and rebooking options when delays occur.

I booked tickets from San Diego to Cincinnati months in advance to attend my sister’s wedding, a wedding where I was serving as the officiant. At 10:00 PM the night before my 6:00 AM flight (just 8 hours before departure), I received an alert that my first leg to Denver was delayed, causing me to miss my connecting flight to Cincinnati. When I called Frontier customer service, they informed me that they couldn't get me on any other flight that would get me there in time for the Saturday wedding, let alone the rehearsal dinner. Because I had a critical role in the wedding, I was forced to buy a last-minute ticket on another airline for three times the original price, it costing me well over $1,000 extra. Even with the emergency flight, I still missed the rehearsal dinner entirely. When I spoke with Frontier, they agreed to refund my original ticket, but showed zero care or accountability for the massive financial burden and distress they caused. Their "compensation” for causing me to spend an extra $1,000+ and miss an irreplaceable family event? A $75 Frontier voucher. Frontier completely dropped the ball. Their customer service showed zero empathy letting me know that it was Frontier who was the real victim by refunding my ticket price, and their reliability is non-existent. I will never fly Frontier again, and I strongly advise anyone who actually needs to arrive at their destination on time for an important event to book with literally any other airline.

Flight delayed and missed connection. Next available flight was a 10 hour delay.

Did not get on the flight, they had a gate change and my app never updated me! Trying to get flight credit

Zero issues with this flight. Crew was outstanding and flight was super. Plane was clean and fine. The seats need more padding and water should be provided without cost. I recognize it's Frontier but there are some things that should still be part of the flight. But still very satisfied with the experience and quality.

Very delayed with little to no communication from the captain or flight crew. All announcements made were not audibly understood by passengers. Very poor communication. After arrival it took approximately 20 minutes to get a jet bridge to the plane.

I didn’t have any food or check out the entertainment so there should be ‘not applicable’ option. Instead I chose ‘okay’. Anyway, this was my first ever Frontier flight! I was pleased with the new options for Zone1 (exit row seat, carryon included, first to board, etc) and was surprised at seat comfort from the stories I’ve heard/read.

The experience was terrible. The flight boarded late, then after leaving the gate the plane had had to return to the gate for fuel. After 2 hours on the plane, the flight was canceled. The reasons given for the cancelation didn't sound truthful. and different reasons were given. My 15 year old daughter was flying alone on this flight. When they all disembarked the plane she kept asking the crew what she was supposed to do. No one even gave her the courtesy of a response. No one. It took another 4.75 hrs to be out of customs and baggage. She was re-booked the following day. That flight departed 2 hours late. After all of that, they offered a measly $100 flight voucher with an expiry date of 3 months! All in all a terrible experience. We won't be using Frontier again in the future.

There was an extra, unaccounted for passenger on the plane that delayed take off by 1.5 hours (which we boarded for 0.5 hours later than scheduled), ultimately was never found nor removed, then the plane diverted a storm and added another 0.5 hours to the flight, turning this 3.5 hour flight into a 6 hour flight.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Fenton
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

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