Cheap Flights to Harstine Island from HK$541

View HK$541 flight on Sat, 11 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$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 23 hours ago
HK$1,081
Return
found 23 hours ago
Select Delta flight, departing Wed, 10 Sep from San Francisco to Seattle, returning Wed, 17 Sep, priced at HK$1,081 found 23 hours ago
American Airlines
Wed, 10 Sep - Wed, 17 Sep
SFO
San Francisco
SEA
Seattle
HK$1,629 Return, found 23 hours ago
HK$1,629
Return
found 23 hours ago
Select American Airlines flight, departing Wed, 10 Sep from San Francisco to Seattle, returning Wed, 17 Sep, priced at HK$1,629 found 23 hours ago
United
Wed, 10 Sep - Wed, 17 Sep
SFO
San Francisco
SEA
Seattle
HK$1,629 Return, found 23 hours ago
HK$1,629
Return
found 23 hours ago
Select United flight, departing Wed, 10 Sep from San Francisco to Seattle, returning Wed, 17 Sep, priced at HK$1,629 found 23 hours ago
Korean Air
Thu, 25 Dec - Sat, 3 Jan
HKG
Hong Kong SAR
SEA
Seattle
HK$4,927 Return, found 1 hour ago
HK$4,927
Return
found 1 hour ago
Select Korean Air flight, departing Thu, 25 Dec from Hong Kong SAR to Seattle, returning Sat, 3 Jan, priced at HK$4,927 found 1 hour ago
Asiana Airlines
Thu, 13 Nov - Sun, 16 Nov
HKG
Hong Kong SAR
SEA
Seattle
HK$5,209 Return, found 3 days ago
HK$5,209
Return
found 3 days ago
Select Asiana Airlines flight, departing Thu, 13 Nov from Hong Kong SAR to Seattle, returning Sun, 16 Nov, priced at HK$5,209 found 3 days ago

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

September is typically the cheapest month to fly

From HK$959 - HK$1,934 per traveller.

Graph displaying average flight prices per month

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$1,081 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$541 in the last seven days. During this time, the cost of a round-trip fare to Harstine Island varied between HK$1,081 and HK$5,209. 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$1,081 and HK$5,209. 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.
Flights to Harstine Island information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
HK$1,495

Trending flights to Harstine Island

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
Thu, 25 Dec - Sat, 3 Jan
HKG
Hong Kong SAR
SEA
Seattle
HK$4,927 Return, found 1 hour ago
HK$4,927
Return
found 1 hour ago
Select Korean Air flight, departing Thu, 25 Dec from Hong Kong SAR to Seattle, returning Sat, 3 Jan, priced at HK$4,927 found 1 hour ago
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