Seattle to Cancún (SEA–CUN) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
SEA–CUN is served by 2 airlines with nonstop service. Alaska Airlines and Delta Air Lines lead the route. The flight covers 2,685 miles in approximately 5h 49m. Beyond nonstop, 65 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines Also: HA | 7 | B39M | 5h49 | Oneworld | HA | |
| DL Delta Air Lines Also: AM | 7 | 32Q | 5h53 | SkyTeam | AM |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Cancún from Seattle
| Metric | SEA→CUN | YYJ→CUN |
|---|---|---|
| Distance from SEA | – | 98 mi |
| Nonstop airlines | 2 | 1 |
| Weekly flights | 21 | 1 |
| Flight time | 5h 49m | 6h |
| Departure OTP | 92% | – |
Travel Essentials
SEA: PDT · CUN: EST
When it's 6:00 PM in Seattle, it's 8:00 PM in Cancún.
US citizens enter Mexico visa-free for up to 180 days for tourism. Complete the immigration form (FMM) online or on arrival; the online version speeds up processing. Passport must be valid for the duration of stay.
Duty-free allowances: USD 500 in goods. Mexico prohibits importing certain foods and medications without documentation. Declare cash over USD 10,000.
Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).
Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.
Authorised airport taxis operate from a voucher desk inside each terminal. Fares to the Hotel Zone run MXN 350–550 (USD $17–28) and to downtown Cancún MXN 200–300. Purchase tickets inside before exiting to avoid touts. ADO buses depart from outside Terminal 2 to downtown Cancún for MXN 102 and continue to Playa del Carmen and Tulum.The Tren Maya connects Terminal 4 to Playa del Carmen, Tulum, and the broader Yucatán Peninsula. Car rental desks are located in all terminals; driving is straightforward on Highway 307.
Tropical climate with two distinct seasons. Dry season (December–April) brings warm, sunny weather at 25–32°C with low humidity, the peak tourist season and most reliable flying conditions. Wet season (May–November) is hot, humid, and prone to heavy afternoon downpours; thunderstorms can cause short ground delays.
Hurricane season runs June through November, peaking in September–October. Major storms (e.g., Wilma 2005, Zeta 2020) can close the airport for 12–48 hours. Monitor forecasts carefully from August through October. September is statistically the highest-risk month.
SEA–CUN Quick Facts
Frequently Asked Questions
Flights from SEA to CUN
Seattle–Tacoma International Airport (SEA) and Cancún International Airport (CUN) are connected by nonstop service from Alaska Airlines and Delta Air Lines. With 21 weekly departures, this is a well served route.
SEA to CUN Flight Duration and Schedule
Nonstop flight time from SEA to CUN ranges from 5 hours 49 minutes to 5 hours 53 minutes. The route covers a distance of 2,685 miles (4,320 km). There are approximately 21 weekly flights outbound and 21 return, totaling 42 flights per week in both directions.
Connecting Options and Alternatives
65 one-stop connections are available, with the fastest taking approximately 6 hours via DAL. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Victoria (YYJ).