✦ Smart route search

St. Louis to Cancun flight ticket price

Compare live prices for STL to CUN. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
STL → CUN Approx. 1997.63 km 11 May 2026 Live inventory
✈ Flight Search
Modify your route
From
To
Depart
Return
Adults
Children
Infants
Cabin
Trip Type
STL→CUN

Sort By

💰 Cheapest
⚡ Fastest
🕐 Earliest

🎚️ Filters

Stops Reset
0
0
0
Max Price Reset
Up to ₹5,00,000
Departure Time Reset
🌙 Night
12am–6am
🌅 Morning
6am–12pm
☀️ Afternoon
12pm–6pm
🌆 Evening
6pm–12am
Fare Type
Airlines All
Loading…
Select Fare
Showing 25 of 138 live flights
Southwest Airlines
WN-1995
11:10
05/11/2026
STL
St Louis Lambert International Airport
3h 0m
Non-stop
14:10
05/11/2026
CUN
Cancún International Airport
₹17,599
per person
✕ Non-refundable10 fare options
Aeromexico
AM-4406
06:00
05/11/2026
STL
St Louis Lambert International Airport
14h 16m
1 Stop
⏱ ATL · 10h 3mATL Airport
20:16
05/11/2026
CUN
Cancún International Airport
₹17,898
per person
✕ Non-refundable5 fare options
Aeromexico
AM-4189
10:49
05/11/2026
STL
St Louis Lambert International Airport
9h 27m
1 Stop
⏱ ATL · 5h 23mATL Airport
20:16
05/11/2026
CUN
Cancún International Airport
₹17,898
per person
✕ Non-refundable5 fare options
Aeromexico
AM-4406
06:00
05/11/2026
STL
St Louis Lambert International Airport
5h 35m
1 Stop
⏱ ATL · 1h 13mATL Airport
11:35
05/11/2026
CUN
Cancún International Airport
₹17,898
per person
✕ Non-refundable5 fare options
Aeromexico
AM-4454
13:27
05/11/2026
STL
St Louis Lambert International Airport
6h 49m
1 Stop
⏱ ATL · 2h 43mATL Airport
20:16
05/11/2026
CUN
Cancún International Airport
₹17,898
per person
✕ Non-refundable5 fare options
Aeromexico
AM-4567
09:15
05/11/2026
STL
St Louis Lambert International Airport
11h 1m
1 Stop
⏱ ATL · 6h 55mATL Airport
20:16
05/11/2026
CUN
Cancún International Airport
₹17,898
per person
✕ Non-refundable5 fare options
Aeromexico
AM-5529
07:05
05/11/2026
STL
St Louis Lambert International Airport
13h 11m
1 Stop
⏱ ATL · 9h 6mATL Airport
20:16
05/11/2026
CUN
Cancún International Airport
₹17,898
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-397
07:20
05/11/2026
STL
St Louis Lambert International Airport
5h 50m
1 Stop
⏱ MDW · 1h 5mMDW Airport
13:10
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-4489
05:40
05/11/2026
STL
St Louis Lambert International Airport
7h 30m
1 Stop
⏱ MDW · 2h 45mMDW Airport
13:10
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-417
05:00
05/11/2026
STL
St Louis Lambert International Airport
7h 20m
1 Stop
⏱ MCO · 2h 55mMCO Airport
12:20
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-4466
05:40
05/11/2026
STL
St Louis Lambert International Airport
6h 5m
1 Stop
⏱ HOU · 1h 50mHOU Airport
11:45
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-4467
08:25
05/11/2026
STL
St Louis Lambert International Airport
6h 55m
1 Stop
⏱ HOU · 2h 35mHOU Airport
15:20
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-4668
07:30
05/11/2026
STL
St Louis Lambert International Airport
6h 30m
1 Stop
⏱ BNA · 2h 30mBNA Airport
14:00
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-4440
05:00
05/11/2026
STL
St Louis Lambert International Airport
7h 5m
1 Stop
⏱ BWI · 1h 20mBWI Airport
12:05
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-4454
06:20
05/11/2026
STL
St Louis Lambert International Airport
9h 20m
1 Stop
⏱ DEN · 3h 10mDEN Airport
15:40
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable🔥 Last 2 seats6 fare options
Southwest Airlines
WN-4466
05:40
05/11/2026
STL
St Louis Lambert International Airport
7h 40m
1 Stop
⏱ HOU · 3h 20mHOU Airport
13:20
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-4466
05:40
05/11/2026
STL
St Louis Lambert International Airport
9h 40m
1 Stop
⏱ HOU · 5h 20mHOU Airport
15:20
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-4440
05:00
05/11/2026
STL
St Louis Lambert International Airport
10h 5m
1 Stop
⏱ BWI · 4h 20mBWI Airport
15:05
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-2013
06:05
05/11/2026
STL
St Louis Lambert International Airport
8h 40m
1 Stop
⏱ PHX · 1h 25mPHX Airport
14:45
05/11/2026
CUN
Cancún International Airport
₹18,201
per person
✕ Non-refundable5 fare options
Frontier Airlines
F9-86
06:00
05/11/2026
STL
St Louis Lambert International Airport
3h 15m
Non-stop
09:15
05/11/2026
CUN
Cancún International Airport
₹19,361
per person
✕ Non-refundable
Southwest Airlines
WN-3793
19:40
05/11/2026
STL
St Louis Lambert International Airport
16h 40m
1 Stop
⏱ MCO · 12h 20mMCO Airport
12:20
05/12/2026
+1
CUN
Cancún International Airport
₹19,628
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-3816
15:25
05/11/2026
STL
St Louis Lambert International Airport
20h 55m
1 Stop
⏱ MCO · 16h 30mMCO Airport
12:20
05/12/2026
+1
CUN
Cancún International Airport
₹19,628
per person
✕ Non-refundable4 fare options
Southwest Airlines
WN-5047
14:20
05/11/2026
STL
St Louis Lambert International Airport
22h 0m
1 Stop
⏱ MCO · 17h 40mMCO Airport
12:20
05/12/2026
+1
CUN
Cancún International Airport
₹19,628
per person
✕ Non-refundable4 fare options
Southwest Airlines
WN-4487
17:30
05/11/2026
STL
St Louis Lambert International Airport
18h 50m
1 Stop
⏱ MCO · 14h 25mMCO Airport
12:20
05/12/2026
+1
CUN
Cancún International Airport
₹19,628
per person
✕ Non-refundable4 fare options
aircanada
AC-1564
13:05
05/11/2026
STL
St Louis Lambert International Airport
23h 5m
1 Stop
⏱ YUL · 16h 0mYUL Airport
12:10
05/12/2026
+1
CUN
Cancún International Airport
₹19,883
per person
✕ Non-refundable12 fare options
😕 No flights match your filters.
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
Cancun (CUN)
📍 Cancún International Airport
🌍 Mexico
🕐 GMT -5
📐 Latitude: 21.036500930800003
📐 Longitude: -86.8770980835

✈ Distance: St. Louis,USA to Cancun,Mexico1997.63 km

📅 Results on this page are loaded for 11 May 2026. Click View all flights for the complete live search.

St. Louis to Cancun — what to expect when booking

The STL–CUN route is served by multiple carriers throughout the year. Fares on this route can move quickly — a price available now may not be there 30 minutes later.

If your dates are flexible, try shifting your departure by a day or two using the date strip above. Mid-week departures often show lower base fares compared to weekend starts on many routes.

The distance between St. Louis,USA and Cancun,Mexico is approximately 1997.63 km.

Before you book

Compare nearby dates

The date strip above lets you scan nearby fares without restarting the search.

Open full search for more control

Route page shows a limited live set. Full search opens the complete inventory with fresh results.

Check fare details

Each result shows baggage, refundability and fare details before you proceed.

More flights from St. Louis (STL)
54 routes
St. Louis Atlanta
STL → ATL
St. Louis Boston
STL → BOS
St. Louis Burlington IA
STL → BRL
St. Louis Cape Girardeau
STL → CGI
St. Louis Charlotte
STL → CLT
St. Louis Chicago
STL → MDW
St. Louis Cincinnati
STL → CVG
St. Louis Cleveland
STL → CLE
St. Louis Columbus
STL → CMH
St. Louis Dallas
STL → DAL
St. Louis Decatur
STL → DEC
St. Louis Denver
STL → DEN
St. Louis Detroit
STL → DTW
St. Louis Fort Lauderdale
STL → FLL
St. Louis Fort Leonard Wood
STL → TBN
St. Louis Fort Myers
STL → RSW
St. Louis Fort Worth
STL → DFW
St. Louis Grand Rapids
STL → GRR
St. Louis Houston
STL → IAH
St. Louis Houston
STL → HOU
St. Louis Jonesboro
STL → JBR
St. Louis Kansas City
STL → MCI
St. Louis Kirksville
STL → IRK
St. Louis Las Vegas
STL → LAS
St. Louis Little Rock
STL → LIT
St. Louis Los Angeles
STL → LAX
St. Louis Marion
STL → MWA
St. Louis Miami
STL → MIA
St. Louis Milwaukee
STL → MKE
St. Louis Minneapolis
STL → MSP
St. Louis Montego Bay
STL → MBJ
St. Louis Nashville
STL → BNA
St. Louis New Orleans
STL → MSY
St. Louis New York
STL → EWR
St. Louis Oklahoma City
STL → OKC
St. Louis Omaha
STL → OMA
St. Louis Orlando
STL → MCO
St. Louis Owensboro
STL → OWB
St. Louis Philadelphia
STL → PHL
St. Louis Phoenix
STL → PHX
St. Louis Pittsburgh International Airport
STL → PIT
St. Louis Puerto Vallarta
STL → PVR
St. Louis Punta Cana
STL → PUJ
St. Louis Quincy
STL → UIN
St. Louis Raleigh
STL → RDU
St. Louis Salt Lake City
STL → SLC
St. Louis San Antonio
STL → SAT
St. Louis San Diego
STL → SAN
St. Louis San Francisco
STL → SFO
St. Louis Seattle
STL → SEA
St. Louis Tampa
STL → TPA
St. Louis Toronto
STL → YYZ
St. Louis Tulsa
STL → TUL
St. Louis Washington DC
STL → DCA
More flights from Cancun (CUN)
78 routes
Cancun Aguascaliente
CUN → AGU
Cancun Amsterdam
CUN → AMS
Cancun Atlanta
CUN → ATL
Cancun Austin
CUN → AUS
Cancun Belize City
CUN → BZE
Cancun Bogota
CUN → BOG
Cancun Boston
CUN → BOS
Cancun Buenos Aires
CUN → EZE
Cancun Calgary
CUN → YYC
Cancun Charlotte
CUN → CLT
Cancun Chicago
CUN → MDW
Cancun Chihuahua
CUN → CUU
Cancun Cincinnati
CUN → CVG
Cancun Cleveland
CUN → CLE
Cancun Cozmel
CUN → CZM
Cancun Denver
CUN → DEN
Cancun Detroit
CUN → DTW
Cancun Duesseldorf
CUN → DUS
Cancun Edmonton
CUN → YEG
Cancun Fort Lauderdale
CUN → FLL
Cancun Fort Worth
CUN → DFW
Cancun Frankfurt
CUN → FRA
Cancun Glasgow
CUN → GLA
Cancun Guadalajara
CUN → GDL
Cancun Halifax International
CUN → YHZ
Cancun Havana
CUN → HAV
Cancun Hermosillo
CUN → HMO
Cancun Holguin
CUN → HOG
Cancun Houston
CUN → IAH
Cancun Indianapolis
CUN → IND
Cancun Kansas City
CUN → MCI
Cancun Leon
CUN → BJX
Cancun Lima
CUN → LIM
Cancun London
CUN → LGW
Cancun Los Angeles
CUN → LAX
Cancun Madrid
CUN → MAD
Cancun Manchester
CUN → MAN
Cancun Merida
CUN → MID
Cancun Mexico City
CUN → MEX
Cancun Miami
CUN → MIA
Cancun Milan
CUN → MXP
Cancun Milwaukee
CUN → MKE
Cancun Minneapolis
CUN → MSP
Cancun Monterrey
CUN → MTY
Cancun Montreal
CUN → YUL
Cancun Moscow
CUN → VKO
Cancun New York
CUN → EWR
Cancun Oaxaca
CUN → OAX
Cancun Orlando
CUN → MCO
Cancun Panama City
CUN → PTY
Cancun Paris
CUN → CDG
Cancun Philadelphia
CUN → PHL
Cancun Phoenix
CUN → PHX
Cancun Pittsburgh International Airport
CUN → PIT
Cancun Puebla
CUN → PBC
Cancun Quebec
CUN → YQB
Cancun Queretaro
CUN → QRO
Cancun Raleigh
CUN → RDU
Cancun Reynosa
CUN → REX
Cancun Rome
CUN → FCO
Cancun Salt Lake City
CUN → SLC
Cancun San Antonio
CUN → SAT
Cancun San Francisco
CUN → SFO
Cancun San Luis Potosi
CUN → SLP
Cancun San Salvador
CUN → SAL
Cancun Santiago de Chile
CUN → SCL
Cancun St. Louis
CUN → STL
Cancun Tampico
CUN → TAM
Cancun Tijuana
CUN → TIJ
Cancun Toluca
CUN → TLC
Cancun Toronto
CUN → YYZ
Cancun Torreon
CUN → TRC
Cancun Tuxtla Gutierrez
CUN → TGZ
Cancun Vancouver
CUN → YVR
Cancun Varadero
CUN → VRA
Cancun Veracruz
CUN → VER
Cancun Villahermosa
CUN → VSA
Cancun Washington DC
CUN → IAD
❓ Frequently asked questions — St. Louis to Cancun flights

Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.

The straight-line distance between St. Louis,USA (STL) and Cancun,Mexico (CUN) is approximately 1997.63 km. Actual flying distance may vary slightly depending on routing.

Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.

Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.