$760 Cheap Flights from Seattle (SEA) to Hamilton Island (HTI)

View $760 flight on Thu, Dec 4, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Hamilton Island, QLD (HTI-Great Barrier Reef)

Cheap Flights from Seattle to Hamilton Island (SEA-HTI)

Prices were available within the past 7 days and start at $760 for one-way flights and $1,878 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$1,878 Roundtrip, found 3 days ago
$1,878
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $1,878 found 3 days ago
American Airlines
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$1,921 Roundtrip, found 3 days ago
$1,921
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $1,921 found 3 days ago
American Airlines
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$1,933 Roundtrip, found 3 days ago
$1,933
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $1,933 found 3 days ago
American Airlines
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$1,973 Roundtrip, found 3 days ago
$1,973
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $1,973 found 3 days ago
American Airlines
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$2,018 Roundtrip, found 3 days ago
$2,018
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $2,018 found 3 days ago
American Airlines
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$2,030 Roundtrip, found 3 days ago
$2,030
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $2,030 found 3 days ago
United
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$2,063 Roundtrip, found 3 days ago
$2,063
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $2,063 found 3 days ago
United
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$2,083 Roundtrip, found 3 days ago
$2,083
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $2,083 found 3 days ago
Qantas Airways
Thu, Dec 4 - Mon, Dec 8
SEA
Seattle
HTI
Hamilton Island
$2,506 Roundtrip, found 3 days ago
$2,506
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Thu, Dec 4 from Seattle to Hamilton Island, returning Mon, Dec 8, priced at $2,506 found 3 days ago
Qatar Airways
Sun, Dec 14 - Sun, Dec 21
SEA
Seattle
HTI
Hamilton Island
$5,386 Roundtrip, found 11 hours ago
$5,386
Roundtrip
found 11 hours ago
Select Qatar Airways flight, departing Sun, Dec 14 from Seattle to Hamilton Island, returning Sun, Dec 21, priced at $5,386 found 11 hours ago

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI) cost?
Grab a cheap one-way flight from $760 or cheap return flight from $1,878 from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI)?
Planning your getaway for December is a great way to save, as it's the cheapest month for flights between SEA and HTI. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SEA to HTI. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI)?
There are no daily nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from SEA to HTI?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI) last-minute?
Last-minute fares from SEA to HTI are generally more expensive. For the cheapest rates, start searching for flights well ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a SEA to HTI flight and hotel package?
You'll typically save money by securing a SEA to HTI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your preferred accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Great Barrier Reef Airport (HTI)?
If you booked your SEA to HTI flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Great Barrier Reef
Airlines serving
Qantas Airways, Qatar Airways
Roundtrip price
$1,877
Distance
7187 mi

Book with confidence

Seattle to Hamilton Island Flights

The cheapest times to fly from Seattle to Hamilton Island

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Hamilton Island are during the month of December. You can find some of the cheapest flights from Seattle to Hamilton Island with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Hamilton Island

Sunday is one of the best days to book for cheap flights from Seattle to Hamilton Island: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Hamilton Island

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Hamilton Island in 2025. You can also book with separate airlines for your outbound and return journeys, from $760 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Hamilton Island flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Hamilton Island airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Hamilton Island Flights

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*Available to One Key members.