Cheap Flights to Harstine Island from HK$464

View HK$464 flight on Tue, 21 Oct 2025Opens in a new window

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Cheap round-trip flights to Harstine Island

Prices were available within the past 7 days and start at HK$464 for one-way flights and HK$918 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 21 Oct - Wed, 22 Oct
SFO
San Francisco
SEA
Seattle
HK$918 Return, just found
HK$918
Return
just found
Select Delta flight, departing Tue, 21 Oct from San Francisco to Seattle, returning Wed, 22 Oct, priced at HK$918 just found
United
Tue, 21 Oct - Wed, 22 Oct
SFO
San Francisco
SEA
Seattle
HK$1,380 Return, just found
HK$1,380
Return
just found
Select United flight, departing Tue, 21 Oct from San Francisco to Seattle, returning Wed, 22 Oct, priced at HK$1,380 just found
American Airlines
Tue, 21 Oct - Wed, 22 Oct
SFO
San Francisco
SEA
Seattle
HK$1,767 Return, just found
HK$1,767
Return
just found
Select American Airlines flight, departing Tue, 21 Oct from San Francisco to Seattle, returning Wed, 22 Oct, priced at HK$1,767 just found
Korean Air
Thu, 16 Oct - Tue, 21 Oct
ICN
Seoul
SEA
Seattle
HK$3,499 Return, found 17 hours ago
HK$3,499
Return
found 17 hours ago
Select Korean Air flight, departing Thu, 16 Oct from Seoul to Seattle, returning Tue, 21 Oct, priced at HK$3,499 found 17 hours ago
Air Canada
Wed, 18 Feb - Fri, 27 Feb
ICN
Seoul
SEA
Seattle
HK$4,289 Return, found 2 days ago
HK$4,289
Return
found 2 days ago
Select Air Canada flight, departing Wed, 18 Feb from Seoul to Seattle, returning Fri, 27 Feb, priced at HK$4,289 found 2 days ago

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

August is typically the cheapest month to fly

From HK$1,064 - HK$1,959 per traveller.

Frequently asked questions

How do I find cheap flights to Harstine Island that have flexible change policies?
When it comes to travelling these days, flexibility is key. That's why we have a "No change fee" filter to help you track down flexible, cheap tickets to Harstine Island. It's to the left of your screen directly below the "Flexible change policies" subheading.
Which airlines fly to Harstine Island?
You can choose from a variety of airlines that fly into or near Harstine Island. A few of the most well-known are:

  • Alaska Airlines - 8,781 flights to or near Harstine Island each month, including 8,781 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • Delta Air Lines - 4,186 flights to or near Harstine Island each month, including 4,186 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • United Airlines - 828 flights to or near Harstine Island each month, including 828 flights to Seattle - Tacoma Intl. Airport (SEA) per month.

How can I find cheap tickets to Harstine Island?
You'll always pick up an epic deal with Expedia, but our "flexible dates" search function makes it even easier. Enter your preferred flight date, then tick the flexible dates box above to see prices for nearby days. HK$918 was the lowest price for a flight to Harstine Island in the last seven days.
How much is a flight to Harstine Island?
One-way flights departing from San Francisco (SFO) sold for just HK$464 in the last seven days. During this time, the cost of a round-trip fare to Harstine Island varied between HK$918 and HK$4,505. If you spot a good deal, book immediately — these fares don't stick around for long.
What are the most popular airports to fly into in Harstine Island?
The principal gateway to Harstine Island, about 15,456 flights touch down at Seattle - Tacoma Intl. Airport (SEA) each month. Scout around for a rewarding deal, reserve your fare and get ready to experience this sensational region.
When is the cheapest time to fly to Harstine Island?
Consider jetting off early in the week to score the best deal to Harstine Island. Tuesday is generally the most cost-effective day to fly, with Monday running a close second. Saturday typically has the most expensive prices. This is because lots of travelers like to start their getaway on a weekend.
How much is a plane ticket to Harstine Island?
In the last seven days, plane tickets to Harstine Island varied between HK$918 and HK$4,505. Prices usually rise as your travel date nears, so secure a terrific deal today.
What months are the cheapest to book a flight to Harstine Island?
To score a low-cost flight to Harstine Island, try to book sometime in February when ticket prices are at their lowest. When's the most costly? In the United States, it's the month of December.

Travel information

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
HK$918

Trending flights to Harstine Island

Prices were available within the past 7 days and start at HK$464 for one-way flights and HK$918 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Wed, 18 Feb - Wed, 25 Feb
HKG
Hong Kong SAR
SEA
Seattle
HK$4,505 Return, just found
HK$4,505
Return
just found
Select Philippine Airlines flight, departing Wed, 18 Feb from Hong Kong SAR to Seattle, returning Wed, 25 Feb, priced at HK$4,505 just found

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