St. Louis (STL) → Cancun (CUN)

1,998 km
3h 0m flight
From $320
Cancun destination photo

About St. Louis to Cancun Flights

Discover the best flights from St. Louis to Cancun, covering 1,998 km in approximately 3h 0m. St. Louis (STL) to Cancun (CUN) is one of the busy short-haul routes connecting United States and Mexico. With 7 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from St. Louis to Cancun.

12-Month Price History

Flight prices from St. Louis to Cancun vary significantly throughout the year. February typically offers the best deals with average prices around $471, while July sees the highest prices, averaging $789. Savvy travelers can save up to 40% by choosing their travel dates wisely.

Best Time to Fly

Cheapest Month

February

Save up to 40% on average

Most Expensive

July

Peak season pricing

Book in Advance

168 days

For best prices

Booking Tips

For the best prices on St. Louis to Cancun flights, we recommend booking 126 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.

Airlines Serving This Route

United Airlines

UA

Economy

$610

Business

$2190

First

$3530

Delta Air Lines

DL

Economy

$680

Business

$2600

First

$4400

Air France

AF

Economy

$730

Business

$2390

First

$3730

American Airlines

AA

Economy

$800

Business

$2640

First

$3400

British Airways

BA

Economy

$810

Business

$2500

First

$3910

Lufthansa

LH

Economy

$820

Business

$2530

First

$4530

Emirates

EK

Economy

$890

Business

$3330

First

$5960

Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.

Alternative Flight Options

Cozumel destination photo

St. LouisCozumel

St. Louis Lambert International (STL) to Cozumel International (CZM)

Distance: 2,053 km

Average price: $530

View this route →

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Frequently Asked Questions

How long is the flight from St. Louis to Cancun?

The flight time from St. Louis (STL) to Cancun (CUN) is approximately 3 hours and 0 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.

What is the distance between St. Louis and Cancun?

The aerial distance between St. Louis and Cancun is 1,998 kilometers (1,241 miles). This is the straight-line distance, which is used to calculate flight times.

Which airlines fly from St. Louis to Cancun?

Several airlines operate flights between St. Louis and Cancun, including American Airlines, Delta Air Lines, United Airlines and 4 more airlines. Direct flights are available on this route.

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

Based on historical data, February typically offers the lowest airfares for flights from St. Louis to Cancun. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.

How far in advance should I book my flight to Cancun?

For the best prices on St. Louis to Cancun flights, we recommend booking 80 days in advance. International flights generally require earlier booking than domestic routes.

Do I need a visa to travel from St. Louis to Cancun?

Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Mexico should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.

What is the time difference between St. Louis and Cancun?

St. Louis operates on America/Chicago time zone, while Cancun is in the America/Cancun time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.