$558 Cheap Flights from St. Louis (STL) to Chetumal (CTM)

View $558 flight on Sun, Feb 15, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Chetumal, Quintana Roo (CTM-Chetumal Intl.)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from St. Louis to Chetumal (STL-CTM)

Prices were available within the past 7 days and start at $558 for one-way flights and $618 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Mar 30 - Wed, Apr 15
STL
St. Louis
CTM
Chetumal
$618 Roundtrip, found 4 days ago
$618
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 30 from St. Louis to Chetumal, returning Wed, Apr 15, priced at $618 found 4 days ago
Delta
Mon, Mar 30 - Fri, Apr 17
STL
St. Louis
CTM
Chetumal
$638 Roundtrip, found 4 days ago
$638
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 30 from St. Louis to Chetumal, returning Fri, Apr 17, priced at $638 found 4 days ago
Delta
Mon, Mar 30 - Tue, Apr 14
STL
St. Louis
CTM
Chetumal
$738 Roundtrip, found 4 days ago
$738
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 30 from St. Louis to Chetumal, returning Tue, Apr 14, priced at $738 found 4 days ago
Delta
Sun, Mar 29 - Tue, Apr 14
STL
St. Louis
CTM
Chetumal
$802 Roundtrip, found 4 days ago
$802
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Mar 29 from St. Louis to Chetumal, returning Tue, Apr 14, priced at $802 found 4 days ago
Delta
Wed, Apr 1 - Wed, Apr 15
STL
St. Louis
CTM
Chetumal
$803 Roundtrip, found 4 days ago
$803
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Apr 1 from St. Louis to Chetumal, returning Wed, Apr 15, priced at $803 found 4 days ago
Aeromexico
Sun, Feb 8 - Wed, Feb 25
STL
St. Louis
CTM
Chetumal
$818 Roundtrip, found 4 days ago
$818
Roundtrip
found 4 days ago
Select Aeromexico flight, departing Sun, Feb 8 from St. Louis to Chetumal, returning Wed, Feb 25, priced at $818 found 4 days ago
Delta
Sun, Mar 29 - Fri, Apr 17
STL
St. Louis
CTM
Chetumal
$822 Roundtrip, found 4 days ago
$822
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Mar 29 from St. Louis to Chetumal, returning Fri, Apr 17, priced at $822 found 4 days ago
Delta
Wed, Apr 1 - Fri, Apr 17
STL
St. Louis
CTM
Chetumal
$823 Roundtrip, found 4 days ago
$823
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Apr 1 from St. Louis to Chetumal, returning Fri, Apr 17, priced at $823 found 4 days ago
Delta
Mon, Mar 30 - Mon, Apr 13
STL
St. Louis
CTM
Chetumal
$834 Roundtrip, found 4 days ago
$834
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 30 from St. Louis to Chetumal, returning Mon, Apr 13, priced at $834 found 4 days ago
Aeromexico
Sat, Feb 21 - Wed, Mar 4
STL
St. Louis
CTM
Chetumal
$838 Roundtrip, found 4 days ago
$838
Roundtrip
found 4 days ago
Select Aeromexico flight, departing Sat, Feb 21 from St. Louis to Chetumal, returning Wed, Mar 4, priced at $838 found 4 days ago

Alternative airports near Chetumal

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Chetumal Intl. CTM. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $1,633
CTM
Chetumal Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $1,633

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM) cost?
Secure a cheap one-way flight from $558 or cheap return flight from $618 from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM)?
The cheapest month to fly from STL to CTM is March, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from STL to CTM. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM)?
You'll have to hop on a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from STL to CTM?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM)?
To touch down at Chetumal Intl. Airport (CTM) on time, select a flight that takes off from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM) last-minute?
Holding off until just before your trip to book your flight from STL to CTM often results in higher prices. While you might find some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible for the best chance of scoring a bargain.
Is it cheaper to book a STL to CTM flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to CTM flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the stress out of planning your trip. Just secure your flights and choose from our extensive range of stays, then personalize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Chetumal Intl. Airport (CTM)?
Typically, it's possible to reschedule or cancel your STL to CTM flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Chetumal Intl.
Roundtrip price
$617
Distance
1403 mi

Book with confidence

St. Louis to Chetumal Flights

The cheapest times to fly from St. Louis to Chetumal

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Chetumal are during the month of March. You can find some of the cheapest flights from St. Louis to Chetumal with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Chetumal

Sunday is one of the best days to book for cheap flights from St. Louis to Chetumal: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Chetumal

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Chetumal in 2025. You can also book with separate airlines for your outbound and return journeys, from $558 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Chetumal flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Chetumal airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Chetumal Flights

Explore a world of travel with Expedia

*Available to One Key members.