Cheap Flights to Northwest Washington from HK$541

View HK$541 flight on Sat, 27 Sep 2025Opens in a new window

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Cheap round-trip flights to Northwest Washington

Prices were available within the past 7 days and start at HK$541 for one-way flights and HK$1,081 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 10 Sep - Wed, 17 Sep
SFO
San Francisco
SEA
Seattle
HK$1,081 Return, found 1 day ago
HK$1,081
Return
found 1 day ago
Select Delta flight, departing Wed, 10 Sep from San Francisco to Seattle, returning Wed, 17 Sep, priced at HK$1,081 found 1 day ago
Delta
Wed, 27 Aug - Fri, 29 Aug
SFO
San Francisco
SEA
Seattle
HK$1,156 Return, found 8 hours ago
HK$1,156
Return
found 8 hours ago
Select Delta flight, departing Wed, 27 Aug from San Francisco to Seattle, returning Fri, 29 Aug, priced at HK$1,156 found 8 hours ago
Delta
Fri, 10 Oct - Sun, 12 Oct
SFO
San Francisco
SEA
Seattle
HK$1,242 Return, found 18 hours ago
HK$1,242
Return
found 18 hours ago
Select Delta flight, departing Fri, 10 Oct from San Francisco to Seattle, returning Sun, 12 Oct, priced at HK$1,242 found 18 hours ago
American Airlines
Wed, 27 Aug - Fri, 29 Aug
SFO
San Francisco
SEA
Seattle
HK$1,447 Return, found 8 hours ago
HK$1,447
Return
found 8 hours ago
Select American Airlines flight, departing Wed, 27 Aug from San Francisco to Seattle, returning Fri, 29 Aug, priced at HK$1,447 found 8 hours ago
United
Wed, 10 Sep - Wed, 17 Sep
SFO
San Francisco
SEA
Seattle
HK$1,629 Return, found 1 day ago
HK$1,629
Return
found 1 day ago
Select United flight, departing Wed, 10 Sep from San Francisco to Seattle, returning Wed, 17 Sep, priced at HK$1,629 found 1 day ago

Frequently asked questions

How do I find cheap flights to Northwest Washington that have flexible change policies?
By using our smart "No change fee" filter, that's how. Just enter your dates and other details, click the "Search" button, then check the box under the "Flexible change policies" heading (top left-hand side of your screen). Expedia makes it a snap to find flexible, low-cost airfares to Northwest Washington.
Which airlines fly to Northwest Washington?
A good range of airlines fly to airports in or close to Northwest Washington. Your next great adventure is only a few clicks away with these carriers:

  • Alaska Airlines - 9,327 flights to or near Northwest Washington each month, including 8,781 flights to Seattle - Tacoma Intl. Airport (SEA) and 407 flights to Snohomish County - Paine Field Airport (PAE) per month.
  • Delta Air Lines - 4,407 flights to or near Northwest Washington each month, including 4,186 flights to Seattle - Tacoma Intl. Airport (SEA) and 221 flights to Vancouver Intl. Airport (YVR) per month.
  • United Airlines - 1,279 flights to or near Northwest Washington each month, including 828 flights to Seattle - Tacoma Intl. Airport (SEA) and 450 flights to Vancouver Intl. Airport (YVR) per month.

How can I find cheap tickets to Northwest Washington?
One of the easiest ways to get a hold of cheap tickets to Northwest Washington is to be flexible with your dates. Search for your flights, then click "flexible dates" above the results. It will bring up the cheapest prices for nearby days. The lowest price for a flight to Northwest Washington in the last seven days was HK$1,081. Booking ahead of time will generally help you get an even bigger bargain.
How much is a flight to Northwest Washington?
One-way flights taking off from San Francisco (SFO) sold for as little as HK$541 in the last seven days. During this time, the price of a return journey to Northwest Washington varied between HK$1,081 and HK$4,925. If you spot a bargain ticket, book immediately — these prices don't wait around for long.
What are the most popular airports to fly into in Northwest Washington?
Which airport you fly into in Northwest Washington will depend on where you begin your journey and your final destination. Here's a list of the most popular airports in this region:

  • Seattle - Tacoma Intl. Airport (SEA) - 15,456 flights per month.
  • Vancouver Intl. Airport (YVR) - 2,212 flights per month.
  • Snohomish County - Paine Field Airport (PAE) - 438 flights per month.

When is the cheapest time to fly to Northwest Washington?
If you're not fixed on what day you travel to Northwest Washington, fly out early in the week. The most affordable day to take off is usually Tuesday, followed by Monday. Saturday is typically the costliest day, with many vacationers preferring to take off on the weekend.
How much is a plane ticket to Northwest Washington?
In the last seven days, plane tickets to Northwest Washington fluctuated between HK$1,081 and HK$4,925. Prices rise as your travel date nears, so find a bargain today.
What months are the cheapest to book a flight to Northwest Washington?
February is the most affordable month to secure a seat for your Northwest Washington vacation. Airfares cost the most during the busy month of December, so keep clear of this time if possible.
Flights to Northwest Washington information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
HK$1,081

Trending flights to Northwest Washington

Prices were available within the past 7 days and start at HK$541 for one-way flights and HK$1,081 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Tue, 23 Dec - Tue, 6 Jan
HKG
Hong Kong SAR
SEA
Seattle
HK$4,925 Return, found 5 hours ago
HK$4,925
Return
found 5 hours ago
Select Korean Air flight, departing Tue, 23 Dec from Hong Kong SAR to Seattle, returning Tue, 6 Jan, priced at HK$4,925 found 5 hours ago
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