Cheap flights from St. Louis to Mexico from $104
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Mexico departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to Mexico
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Air Canada flights from St. Louis to Mexico
Our best Air Canada deals on St. Louis to Mexico flight tickets
American Airlines flights from St. Louis to Mexico
Our best American Airlines deals on St. Louis to Mexico flight tickets
See travel insights to Mexico from
How to get the cheapest flight ticket from St. Louis to Mexico
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 Mexico?
If you’re not able to fly to Mexico in April, then January is your next best option. Flight prices from St. Louis to Mexico during January average around $478.
What is the cheapest day to depart on your flight to Mexico?
The cheapest day to depart on your flight to Mexico is on a Wednesday when prices can be found for as low as $487. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $531. These prices are subject to change though, so be sure to set up a Price Alert for flights to Mexico.
What is the cheapest time of day to depart on your flight to Mexico?
Our data shows that the cheapest St. Louis to Mexico flights are usually those with departure times in the evening. Our users have found flights to Mexico in the evening for as low as $367. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $851 on average. Flights to Mexico from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Lambert-St Louis to Mexico flight route?
Fly from Lambert-St Louis to Cancun for the best Lambert-St Louis - Mexico flight prices
How far in advance should I book a flight to Mexico?
You are more likely to see cheaper flights to Mexico from St. Louis when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to Mexico for around $522 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Mexico from St. Louis for as low as $469 on momondo.
What cabin class options are available on Lambert-St Louis to Mexico flights?
There are 2 cabin classes available to choose from on Lambert-St Louis to Mexico flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Lambert-St Louis to Mexico?
Spirit Airlines, Frontier, and Volaris are the most popular carriers operating from Lambert-St Louis to Mexico
What airlines fly to Mexico?
American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Mexico from St. Louis according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Mexico. Keep in mind that there are 9 different airlines that fly to Mexico on a routine basis, so you have a few additional options to choose from.
How many flights depart from St. Louis to Mexico on average per day?
The number of flights available between St. Louis and Mexico is 1 per day as of March 2025. The most frequent departure time is 6:00AM, with 81% of daily flights leaving at noon.
How many flights depart from St. Louis to Mexico on average per week?
8 flights are operational weekly from St. Louis to Mexico as of March 2025. The most popular departure day for this route is Tue, with 25% of flights per week taking off on this day.
Cheap St. Louis to Mexico flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Mexico
When did momondo last update prices for flights from Lambert-St Louis Airport to Mexico?
Prices for flights from Lambert-St Louis Airport to Mexico are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Mexico?
There are 9 operators available for flights from Lambert-St Louis Airport to Mexico as of March 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Mexico?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Mexico.
What documentation or ID do you need to fly to Mexico?
The travel and health documents you'll need for your trip to Mexico may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Mexico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Mexico?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Mexico is Airbus A321neo, representing 33.82% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 28.31%, Airbus A320neo at 14.29%, and Boeing 737-700 Passenger/BBJ1 (winglets) at 12.65%.
Best airlines flying from St. Louis to Mexico
Compare and see reviews for airlines that fly from St. Louis to Mexico with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $176 | Free Cancellation | Rating 6.7 1,195 reviews | |||
| PriceFrom $179 | Free Cancellation | Rating 6.3 7,926 reviews | |||
| PriceFrom $278 | Free Cancellation | Rating 6.0 3,315 reviews | |||
| PriceFrom $372 | Free Cancellation | Rating 7.4 1,744 reviews | |||
| PriceFrom $386 | Free Cancellation | Rating 8.0 8,044 reviews | |||
| PriceFrom $387 | Free Cancellation | Rating 7.4 8,655 reviews | |||
| PriceFrom $398 | Free Cancellation | Rating 8.0 9,711 reviews | |||
| PriceFrom $406 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $516 | Free Cancellation | Rating 8.0 4,321 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Mexico?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Mexico from St. Louis.
Can I find flights from St. Louis to Mexico with flexible booking policies on momondo?
Yes. All flights to Mexico from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from St. Louis to Mexico?
momondo helps you find the best flight between St. Louis and Mexico by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from St. Louis to Mexico right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of St. Louis to Mexico flights. All you need is a valid email address and we will do the rest; it is that quick and easy.