International route
Cheap flights from Seattle to Cancun
Seattle-Tacoma International Airport (SEA) to Cancún International Airport (CUN). 2,685 miles, 5h 15m nonstop.
SEA to CUN at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 2,685 milesgreat-circle
- Typical flight time
- 5h 15mnonstop, gate to gate
- Nonstop airlines
- DLUAB6AS8 airlinesDelta, United, JetBlue
- Nonstop flights per day
- 15all airlines combined
- Cheapest month
- November 2026over the next six months
- Best day to fly
- Wednesday19% less than Sunday
- Time difference
- 2h aheadCancun vs Seattle
Seattle to Cancun
Round trips from $218
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Nov 17.
Cheapest month: November 2026
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppSeattle to Cancun fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Seattle to Cancun
8 airlines fly nonstop with 15 departures a day combined, plus 8 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 3 flights a day · first checked bag from $35
- DLDelta Air LinesSkyTeamNonstop · 3 flights a day · first checked bag from $35
- VBVivaLow-costNonstop · 3 flights a day · first checked bag from $45
- Y4VolarisLow-costNonstop · 2 flights a day · first checked bag from $45
- G4Allegiant AirLow-costNonstop · 1 flight a day · first checked bag from $50
- F9Frontier AirlinesLow-costNonstop · 1 flight a day · first checked bag from $55
- B6JetBlueNonstop · 1 flight a day · first checked bag from $40
- UAUnited AirlinesStar AllianceNonstop · 1 flight a day · first checked bag from $40
- AMAeroméxicoSkyTeamConnecting via MEX, MTY, GDL · first checked bag from $40
- ACAir CanadaStar AllianceConnecting via YYZ, YVR, YUL, YYC · first checked bag from $35
- AAAmerican AirlinesoneworldConnecting via DFW, CLT, ORD, MIA, PHX, PHL, LAX, DCA, JFK · first checked bag from $40
- MXBreeze AirwaysLow-costConnecting via PVD, CHS, TPA, RDU, BDL, ORF · first checked bag from $45
- WNSouthwest AirlinesLow-costConnecting via DAL, HOU, MDW, BWI, DEN, LAS, PHX, OAK, MCO, ATL, BNA, LAX, SAN, STL, AUS · first checked bag from $35
- NKSpirit AirlinesLow-costConnecting via FLL, LAS, DTW, MCO, DFW, ATL, IAH · first checked bag from $55
- SYSun Country AirlinesLow-costConnecting via MSP · first checked bag from $45
- WSWestJetConnecting via YYC, YVR, YYZ · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Dallas (DFW)AANK2 airlines
- Phoenix (PHX)AAWN2 airlines
- Los Angeles (LAX)AAWN2 airlines
- Las Vegas (LAS)WNNK2 airlines
- Orlando (MCO)WNNK2 airlines
Tips for this route
- Delta, United, JetBlue and Alaska all fly SEA to CUN nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- November 2026 is the cheapest month to fly over the next six months, with round trips from $218; September 2026 is the most expensive at $258 and up, a difference of $40 per traveler.
- Departing on a Wednesday averages 19% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
- Cancun is 2 hours ahead of Seattle. Expect to lose 2 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Destination guide
Cancún: Caribbean water three hours from most of the US
Cancún is the most-flown international destination from the United States, with nonstops from more than 40 US cities. The Hotel Zone's beaches, the Riviera Maya's cenotes and Mayan ruins, and all-inclusive resorts keep it competitive year-round.
Best time to visit: December–April is dry and sunny (and priciest around Christmas and spring break). May–June and November are warm with lower fares; August–October brings the highest storm risk and the cheapest all-inclusive rates.
Flying the other way? Cancun to SeattleFares, airlines and tips for CUN to SEA.Ready to compare live fares?
See every airline on SEA–CUN side by side with bags and seat rules spelled out.
Search Seattle to CancunSeattle to Cancun: common questions
How long is the flight from Seattle to Cancun?
A nonstop flight from Seattle (SEA) to Cancun (CUN) takes about 5h 15m gate to gate, covering 2,685 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from SEA to CUN?
Delta Air Lines, United Airlines, JetBlue, Alaska Airlines, Frontier Airlines, Allegiant Air, Viva and Volaris operate nonstop flights from Seattle (SEA) to Cancun (CUN), with 15 nonstop departures a day between them. One-stop options connect through DFW, PHX and LAX.
What is the cheapest month to fly from Seattle to Cancun?
Over the next six months, November 2026 has the lowest round-trip fares from Seattle (SEA) to Cancun (CUN), starting at $218 per traveler including taxes and fees. Within any month, Wednesday departures average the lowest prices.
How far in advance should I book Seattle to Cancun flights?
Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Seattle and Cancun?
Cancun is 2 hours ahead of Seattle. SEA is on America/Los Angeles time and CUN on America/Cancun time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
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