Cheap flights from Bangkok to North Seattle from CA $590

View CA $590 flight on Sun, Nov. 9, 2025Opens in a new window

Popular airlines from Bangkok to North Seattle

  • Air Canada

    Air Canada

  • WestJet

    WestJet

  • Flair Airlines

    Flair Airlines

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Porter Airlines

    Porter Airlines

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Bangkok (BKK) to North Seattle (SEA)

Prices were available within the past 7 days and start at CA $590 for one-way flights and CA $890 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Fri, Aug. 29 - Tue, Sep. 2
BKK
Bangkok
SEA
Seattle
CA $890 Roundtrip, just found
CA $890
Roundtrip
just found
Select Korean Air flight, departing Fri, Aug. 29 from Bangkok to Seattle, returning Tue, Sep. 2, priced at CA $890 just found
STARLUX Airlines
Sat, Sep. 13 - Sat, Sep. 20
BKK
Bangkok
SEA
Seattle
CA $1,043 Roundtrip, found 4 days ago
CA $1,043
Roundtrip
found 4 days ago
Select STARLUX Airlines flight, departing Sat, Sep. 13 from Bangkok to Seattle, returning Sat, Sep. 20, priced at CA $1,043 found 4 days ago
Korean Air
Fri, Aug. 29 - Tue, Sep. 2
BKK
Bangkok
SEA
Seattle
CA $1,134 Roundtrip, just found
CA $1,134
Roundtrip
just found
Select Korean Air flight, departing Fri, Aug. 29 from Bangkok to Seattle, returning Tue, Sep. 2, priced at CA $1,134 just found
Delta
Thu, Aug. 28 - Thu, Sep. 11
BKK
Bangkok
SEA
Seattle
CA $1,134 Roundtrip, found 3 hours ago
CA $1,134
Roundtrip
found 3 hours ago
Select Delta flight, departing Thu, Aug. 28 from Bangkok to Seattle, returning Thu, Sep. 11, priced at CA $1,134 found 3 hours ago
Asiana Airlines
Thu, Aug. 28 - Thu, Sep. 11
BKK
Bangkok
SEA
Seattle
CA $1,161 Roundtrip, found 3 hours ago
CA $1,161
Roundtrip
found 3 hours ago
Select Asiana Airlines flight, departing Thu, Aug. 28 from Bangkok to Seattle, returning Thu, Sep. 11, priced at CA $1,161 found 3 hours ago
All Nippon Airways
Thu, Aug. 28 - Thu, Sep. 11
BKK
Bangkok
SEA
Seattle
CA $1,264 Roundtrip, found 3 hours ago
CA $1,264
Roundtrip
found 3 hours ago
Select All Nippon Airways flight, departing Thu, Aug. 28 from Bangkok to Seattle, returning Thu, Sep. 11, priced at CA $1,264 found 3 hours ago

Find the cheapest month to fly from Bangkok (BKK) to Seattle (SEA)

May is typically the cheapest month to fly

From CA $793 - CA $1,276 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.