Direct flights from St Louis to Cancun

Did you mean Flights from Cancun to St Louis?

St Louis

United States

STL

Lambert St Louis International Airport

Cancun

Mexico

CUN

Cancun International Airport

Route: Nonstop service available
Distance: 1,241 miles
Marketing airlines: 4 airlines
Aircraft: 6 aircraft types
Dates: Nov 2, 2026 – Aug 2, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 7,500 points + $79.00 for STL → CUN, Economy, on 2026-11-28, booked with Alaska Atmos Rewards. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-11-12 – 2026-12-11.

STL → CUNEconomy
AA3310
7,500 points+ $79.00
Departure
2026-11-28
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-11-12 02:12
STL → CUNEconomy
F986
7,500 points+ $59.00
Departure
2026-11-28
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-12 02:12
STL → CUNEconomy
F986
7,500 points+ $59.00
Departure
2026-11-29
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-12 02:12
STL → CUNPremium Economy
F986
11,500 points+ $59.00
Departure
2026-11-28
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-12 02:12
STL → CUNPremium Economy
F986
11,500 points+ $59.00
Departure
2026-11-29
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-12 02:12
STL → CUNEconomy
AA3310
13,000 points+ $59.00
Departure
2026-11-28
Seats seen
4
Book with
American Airlines
Observed (UTC)
2026-11-12 02:12
STL → CUNEconomy
F986
15,000 points+ $59.00
Departure
2026-11-13
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-10 20:42
STL → CUNEconomy
F986
15,000 points+ $59.00
Departure
2026-11-14
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-10 20:42
STL → CUNEconomy
F986
15,000 points+ $59.00
Departure
2026-11-15
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-10 20:42
STL → CUNEconomy
F986
15,000 points+ $59.00
Departure
2026-11-16
Seats seen
4
Book with
Frontier Miles
Observed (UTC)
2026-11-10 20:42
STL → CUNBusiness
AA3310
15,000 points+ $79.00
Departure
2026-11-28
Seats seen
5
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-11-12 02:12
STL → CUNEconomy
AA3310
15,000 points+ $86.00
Departure
2026-11-28
Seats seen
7
Book with
Etihad Guest
Observed (UTC)
2026-11-12 02:12

Explore these booking programs

Search Alaska Atmos Rewards awards Alaska Atmos Rewards booking and transfer guide
Transfer partners in our directory: Bilt Rewards, Marriott Bonvoy, IHG Rewards, Choice Privileges. Check current eligibility and terms before transferring.
Search Frontier Miles awards Frontier Miles booking and transfer guide
Transfer partners in our directory: Marriott Bonvoy. Check current eligibility and terms before transferring.
Search American Airlines awards American Airlines booking and transfer guide
Transfer partners in our directory: Citi ThankYou, Marriott Bonvoy, IHG Rewards. Check current eligibility and terms before transferring.
Search Etihad Guest awards Etihad Guest booking and transfer guide
Transfer partners in our directory: Capital One, Citi ThankYou, Marriott Bonvoy, Ramp Rewards, Bilt Rewards, Accor Live Limitless, IHG Rewards. Check current eligibility and terms before transferring.

St Louis to Cancun route overview

Lambert St Louis International Airport (STL) serves St Louis; Cancun International Airport (CUN) serves Cancun.

The airports are 1,241 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from STL to CUN.

Marketing airlines listed in the current schedule, including codeshare sellers, are American Airlines (AA), Frontier Airlines (F9), Southwest Airlines (WN) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Nov 2, 2026 – Aug 2, 2027.

Marketing airlines on the St Louis to Cancun route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Volaris (Y4)Codeshare only

Airline alliance affiliations represented: Oneworld

Aircraft flying from STL to CUN

Frequently asked questions

Which airports serve the St Louis to Cancun route?

Lambert St Louis International Airport (STL) is the origin airport and Cancun International Airport (CUN) is the destination airport.

How far is Cancun from St Louis?

STL and CUN are approximately 1,241 miles apart by great-circle distance.

Are there direct flights from STL to CUN?

Yes. Roame's current schedule feed shows nonstop service from STL to CUN.

Which airlines market flights from STL to CUN?

Which aircraft fly from STL to CUN?

Aircraft listed in the current schedule include Airbus A321 (321), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737 MAX 8 (7M8) and 7S7.