Cheap Flights from St. Louis (STL) to Isla Mujeres (ISJ)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Isla Mujeres, Quintana Roo (ISJ)

Alternative airports near Isla Mujeres

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

Select flight to Cancun Intl. CUN. Cheapest option available. Average driving time to city center is 1 hour 44 minutes. Flights from $413
CUN
Cancun Intl.
Cheapest
Average driving time to city center1 h 44 min
Flights from $413

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Isla Mujeres Airport (ISJ) cost?
Secure a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Isla Mujeres Airport (ISJ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Isla Mujeres Airport (ISJ)?
The cheapest month to fly from STL to ISJ is , when there's less demand. Off-peak months are usually 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 Isla Mujeres Airport (ISJ)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STL to ISJ flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Isla Mujeres Airport (ISJ)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Isla Mujeres Airport (ISJ) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to ISJ?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change depending on the airline, time of year and other factors.*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 Isla Mujeres Airport (ISJ)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Isla Mujeres Airport (ISJ) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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.
What airports do you fly into for Isla Mujeres from Lambert-St. Louis Intl. Airport (STL)?
Cancun Intl. Airport (CUN) is the only airport in Isla Mujeres with direct flights from Lambert-St. Louis Intl. Airport (STL). Consider your options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Isla Mujeres Airport (ISJ) last-minute?
Booking your ticket from STL to ISJ just before your trip is typically more expensive. However, if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a STL to ISJ flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to ISJ flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place takes the hassle out of planning your trip. Just secure your flights and select from our extensive range of hotels, 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 Isla Mujeres Airport (ISJ)?
In most cases, you can reschedule or cancel your STL to ISJ flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you'd like further information, head to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Isla Mujeres
Distance
1227 mi

Book with confidence

St. Louis to Isla Mujeres Flights

The cheapest times to fly from St. Louis to Isla Mujeres

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 Isla Mujeres are during the month of . You can find some of the cheapest flights from St. Louis to Isla Mujeres with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Isla Mujeres

Sunday is one of the best days to book for cheap flights from St. Louis to Isla Mujeres: 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 Isla Mujeres

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 Isla Mujeres in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Isla Mujeres 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 Isla Mujeres 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 Isla Mujeres Flights

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*Available to One Key members.