A sunset over a body of water with mountains in the background.

Cheap Flights to Southwest Seattle from HK$617

View HK$617 flight on Tue, 22 Sept 2026Opens in a new window

Popular airlines

  • Alaska Airlines

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Southwest Seattle

Prices were available within the past 7 days and start at HK$617 for one-way flights and HK$1,233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 5 Dec - Wed, 9 Dec
SFO
San Francisco
SEA
Seattle
HK$1,233 Return, found 1 day ago
HK$1,233
Return
found 1 day ago
Select Delta flight, departing Sat, 5 Dec from San Francisco to Seattle, returning Wed, 9 Dec, priced at HK$1,233 found 1 day ago
United
Sat, 25 Jul - Wed, 29 Jul
SFO
San Francisco
SEA
Seattle
HK$1,868 Return, found 11 hours ago
HK$1,868
Return
found 11 hours ago
Select United flight, departing Sat, 25 Jul from San Francisco to Seattle, returning Wed, 29 Jul, priced at HK$1,868 found 11 hours ago
Alaska Airlines
Fri, 17 Jul - Sat, 18 Jul
SFO
San Francisco
SEA
Seattle
HK$1,943 Return, found 4 days ago
HK$1,943
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 17 Jul from San Francisco to Seattle, returning Sat, 18 Jul, priced at HK$1,943 found 4 days ago
American Airlines
Sat, 5 Dec - Wed, 9 Dec
SFO
San Francisco
SEA
Seattle
HK$2,354 Return, found 1 day ago
HK$2,354
Return
found 1 day ago
Select American Airlines flight, departing Sat, 5 Dec from San Francisco to Seattle, returning Wed, 9 Dec, priced at HK$2,354 found 1 day ago
Cathay Pacific
Tue, 6 Oct - Mon, 26 Oct
HKG
Hong Kong SAR
SEA
Seattle
HK$4,895 Return, found 23 hours ago
HK$4,895
Return
found 23 hours ago
Select Cathay Pacific flight, departing Tue, 6 Oct from Hong Kong SAR to Seattle, returning Mon, 26 Oct, priced at HK$4,895 found 23 hours ago

Frequently asked questions

How do I find cheap flights to Southwest Seattle that have flexible change policies?
When it comes to flying these days, flexibility is key. That's why we've added a "No change fee" search function to help you locate cheap, flexible airfares to Southwest Seattle. It's to the left of your screen right underneath the "Flexible change policies" heading.
Which airlines fly to Southwest Seattle?
Whether you want to sit in first class or save your pennies in economy, these airlines will fly you comfortably to or near Southwest Seattle:

  • Kenmore Air - 243 flights to or near Southwest Seattle each month, including 243 flights to Boeing Field Airport (BFI) per month.
  • Sun Country Airlines - 4 flights to or near Southwest Seattle each month, including 4 flights to Boeing Field Airport (BFI) per month.

How can I find cheap tickets to Southwest Seattle?
Book well ahead, consider alternative airports, avoid peak travel periods — there are lots of ways! Another one is to make use of Expedia's "flexible dates" function. Search for your Southwest Seattle flight, then check out the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to Southwest Seattle was HK$1,233.
How much is a flight to Southwest Seattle?
The price of a round-trip airfare to Southwest Seattle in the last seven days varied between HK$1,233 and HK$4,895. If you were travelling one way out of San Francisco (SFO), you could have scored a great deal from only HK$617.
What are the most popular airports to fly into in Southwest Seattle?
Southwest Seattle's primary gateway is Boeing Field Airport (BFI). Get your next big journey underway by booking a seat on one of the 247 monthly flights to this destination.
When is the cheapest time to fly to Southwest Seattle?
Leave early in the week to get a bargain fare to Southwest Seattle. Tuesday is usually the cheapest day to depart, followed by Monday. Saturday often has the costliest ticket prices. This is because many travelers like to begin their vacation on a weekend.
How much is a plane ticket to Southwest Seattle?
Ticket prices to Southwest Seattle ranged from HK$1,233 to HK$4,895 in the last seven days. Usually, the earlier you make a reservation, the better the price.
What months are the cheapest to book a flight to Southwest Seattle?
February is the most affordable month to secure a seat for your Southwest Seattle break. Fares are priciest throughout the busy month of December, so avoid this time if possible.

Travel information

Destination airport
Lake Union Seaplane Base
Destination airport IATA code
LKE
Destination city name
Seattle
Return price
HK$1,477

Trending flights to Southwest Seattle

Prices were available within the past 7 days and start at HK$617 for one-way flights and HK$1,233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Tue, 6 Oct - Mon, 26 Oct
HKG
Hong Kong SAR
SEA
Seattle
HK$4,895 Return, found 23 hours ago
HK$4,895
Return
found 23 hours ago
Select Cathay Pacific flight, departing Tue, 6 Oct from Hong Kong SAR to Seattle, returning Mon, 26 Oct, priced at HK$4,895 found 23 hours ago

Explore a world of travel with Expedia

*Available to Expedia members.