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prices we've seen · United States fares · USD

Flights from Seattle (SEA) to Cancun (CUN)

  • One way from $317
  • Round trip from $546
  • Nonstop on 2 of 3 dates
  • Fastest 5h 55m
  • 6 airlines

The cheapest one-way fare from Seattle (SEA) to Cancun (CUN) we have seen is $317 USD, departing Nov 11, 2026 (seen Nov 10, 2026): Air Canada AC 8801, 1 stop, 19h 20m.

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Prices are the fare alone; the seller shows the bag and fare rules.

Cheapest by month

Checked Nov 11

Pick a month to search the day its cheapest fare leaves.

  1. Nov 2026$317
  2. Dec 2026$362
  3. Jan 2027—
  4. Feb 2027—
  5. Mar 2027—
  6. Apr 2027$262

Cheapest days to fly one wayCheapest round trips

Each day's cheapest fare we've seen, nonstop and with stops. Cheapest first.

We may earn a commission from the seller · How we rank

  1. WedNov 11

    08:40

    19h 20m1 stop

    07:00+1

    Cheapest$317 USD

    Air Canada AC 8801 · seen Nov 10

    Go to seller — $317

  2. TueNov 10

    19:05

    8h 55m1 stop

    07:00+1

    $322 USD

    Air Canada AC 8811 · seen Nov 10

    Go to seller — $322

  3. WedDec 23

    21:50

    18h 55m2 stops

    19:45+1

    $362 USD

    Southwest Airlines WN 3825 · seen Nov 10

    Go to seller — $362

  4. WedNov 11

    07:25

    5h 55mNonstop

    16:20

    $498 USD

    Aeromexico AM 4245 · seen Nov 10

    Go to seller — $498

  5. WedDec 23

    07:16

    6h 4mNonstop

    16:20

    $656 USD

    Aeromexico AM 4245 · seen Nov 10

    Go to seller — $656

The cheapest round trips we've seen on this route, on any dates, cheapest first.

We may earn a commission from the seller · How we rank

  1. 5 nightsFeb 21–26

    09:30

    CUN

    Cheapest$546 USD

    Aeromexico AM 495 · 2 stops · 20h 35m in all, both ways · seen Nov 9

    Go to seller — $546

  2. 5 nightsApr 5–10

    07:45

    CUN

    $564 USD

    Air Canada AC 540 · 2 stops · 39h 33m in all, both ways · seen Nov 9

    Go to seller — $564

  3. 5 nightsFeb 20–25

    23:40

    CUN

    $565 USD

    American Airlines AA 2205 · 2 stops · 21h 53m in all, both ways · seen Nov 9

    Go to seller — $565

  4. 5 nightsMar 1–6

    09:30

    CUN

    $575 USD

    Aeromexico AM 495 · 2 stops · 23h 35m in all, both ways · seen Nov 9

    Go to seller — $575

  5. 5 nightsFeb 22–27

    09:30

    CUN

    $577 USD

    Aeromexico AM 495 · 2 stops · 23h 35m in all, both ways · seen Nov 9

    Go to seller — $577

  6. 6 nightsFeb 28 – Mar 6

    09:30

    CUN

    $579 USD

    Aeromexico AM 495 · 2 stops · 23h 35m in all, both ways · seen Nov 9

    Go to seller — $579

  7. 5 nightsMar 8–13

    21:07

    CUN

    $605 USD

    Volaris Y4 1851 · 2 stops · 21h 22m in all, both ways · seen Nov 9

    Go to seller — $605

  8. 6 nightsFeb 28 – Mar 6

    07:08

    16:00

    $618 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 34m in all, both ways · seen Nov 9

    Go to seller — $618

  9. 5 nightsMar 1–6

    07:08

    16:00

    $618 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 34m in all, both ways · seen Nov 9

    Go to seller — $618

  10. 7 nightsMar 19–26

    22:10

    CUN

    $629 USD

    Volaris Y4 1851 · 2 stops · 24h 25m in all, both ways · seen Nov 8

    Go to seller — $629
Show 14 more fares

  1. 5 nightsFeb 21–26

    07:08

    16:00

    $634 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 39m in all, both ways · seen Nov 9

    Go to seller — $634

  2. 12 nightsDec 28 – Jan 9

    23:59

    CUN

    $657 USD

    American Airlines AA 3075 · 2 stops · 32h 22m in all, both ways · seen Nov 7

    Go to seller — $657

  3. 5 nightsFeb 15–20

    21:07

    CUN

    $658 USD

    Volaris Y4 1851 · 3 stops · 22h 45m in all, both ways · seen Nov 9

    Go to seller — $658

  4. 5 nightsMar 8–13

    07:08

    16:00

    $677 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 34m in all, both ways · seen Nov 9

    Go to seller — $677

  5. 7 nightsMar 13–20

    21:07

    CUN

    $736 USD

    Volaris Y4 1851 · 2 stops · 46h 38m in all, both ways · seen Nov 5

    Go to seller — $736

  6. 5 nightsMar 15–20

    22:10

    CUN

    $760 USD

    Volaris Y4 1851 · 2 stops · 19h 40m in all, both ways · seen Nov 9

    Go to seller — $760

  7. 5 nightsMar 15–20

    07:08

    15:00

    $781 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 37m in all, both ways · seen Nov 9

    Go to seller — $781

  8. 5 nightsFeb 20–25

    08:05

    17:00

    $801 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 42m in all, both ways · seen Nov 9

    Go to seller — $801

  9. 5 nightsFeb 22–27

    07:08

    16:00

    $813 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 34m in all, both ways · seen Nov 9

    Go to seller — $813

  10. 7 nightsMar 13–20

    08:00

    17:00

    $849 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 45m in all, both ways · seen Nov 5

    Go to seller — $849

  11. 7 nightsMar 19–26

    07:00

    15:00

    $897 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 45m in all, both ways · seen Nov 8

    Go to seller — $897

  12. 12 nightsDec 28 – Jan 9

    07:04

    16:00

    $1,232 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 36m in all, both ways · seen Nov 7

    Go to seller — $1,232

  13. 5 nightsApr 5–10

    07:00

    15:00

    $1,803 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 45m in all, both ways · seen Nov 9

    Go to seller — $1,803

  14. 5 nightsFeb 15–20

    07:08

    16:00

    $2,161 USD

    Alaska Airlines AS 1400 · Nonstop · 12h 34m in all, both ways · seen Nov 9

    Go to seller — $2,161

Compare other routes

Compared with Seattle → Cancun: $317 one way (Nov 11).

Other places from Seattle

Every route from Seattle →

To Cancun from other cities

Every route to Cancun →

Airlines seen on this route

  • American Airlines
  • Air Canada
  • Aeromexico
  • Alaska Airlines
  • Southwest Airlines
  • Volaris

Marketing carriers; the operating airline is shown by the seller.

Seattle to Cancun in numbers

  • By month, Apr 2027 is the cheapest we've seen at $262 USD and Dec 2026 the most expensive at $362 USD — a spread of 38%.
  • Nonstop fares were seen on 2 of the 3 departure dates; carriers seen: American Airlines, Air Canada, Aeromexico, Alaska Airlines, Southwest Airlines, Volaris.
  • SEA serves Seattle, United States; CUN serves Cancun, Mexico.
  • Cancun runs 3 hours ahead of Seattle.

Questions

What is the cheapest fare from Seattle (SEA) to Cancun (CUN)?

The cheapest one-way fare from Seattle (SEA) to Cancun (CUN) we have seen is $317 USD, departing Nov 11, 2026 (seen Nov 10, 2026): Air Canada AC 8801, 1 stop, 19h 20m.

Is there a nonstop flight from Seattle (SEA) to Cancun (CUN)?

Nonstop fares were seen on 2 of the 3 departure dates; carriers seen: American Airlines, Air Canada, Aeromexico, Alaska Airlines, Southwest Airlines, Volaris.

Which month is cheapest to fly from Seattle (SEA) to Cancun (CUN)?

By month, Apr 2027 is the cheapest we've seen at $262 USD and Dec 2026 the most expensive at $362 USD — a spread of 38%.

How old is this price?

It is the cheapest fare we've seen for that date; the date beside it is the day it was seen, or our last check. We look again at least once a day for the routes people search, and stop showing a route's prices two days after our last look. The seller's page shows the price right now.

How does a2bflight rank results?

By price and duration only; commission never enters the order. Cheapest means cheapest among the fares we've seen for this route. A click that books may earn a2bflight a commission from the seller; the price you see is the seller's own. See how we rank and what we keep.