S$955 Cheap Flights from Adelaide to Seattle

View S$955 flight on Sat, 9 May, 2026Opens in a new window

Popular airlines from Adelaide, SA Airport (ADL) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Adelaide to Seattle (ADL-SEA)

Prices were available within the past 7 days and start at S$955 for one-way flights and S$1,537 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qantas Airways
Fri, 23 Jan - Mon, 9 Feb
ADL
Adelaide
SEA
Seattle
S$1,537 Return, found 2 days ago
S$1,537
Return
found 2 days ago
Select Qantas Airways flight, departing Fri, 23 Jan from Adelaide to Seattle, returning Mon, 9 Feb, priced at S$1,537 found 2 days ago
Singapore Airlines
Sat, 9 May - Fri, 29 May
ADL
Adelaide
SEA
Seattle
S$1,538 Return, found 2 days ago
S$1,538
Return
found 2 days ago
Select Singapore Airlines flight, departing Sat, 9 May from Adelaide to Seattle, returning Fri, 29 May, priced at S$1,538 found 2 days ago
Qantas Airways
Tue, 27 Jan - Mon, 9 Feb
ADL
Adelaide
SEA
Seattle
S$1,544 Return, found 2 days ago
S$1,544
Return
found 2 days ago
Select Qantas Airways flight, departing Tue, 27 Jan from Adelaide to Seattle, returning Mon, 9 Feb, priced at S$1,544 found 2 days ago
Qantas Airways
Thu, 22 Jan - Mon, 9 Feb
ADL
Adelaide
SEA
Seattle
S$1,575 Return, found 2 days ago
S$1,575
Return
found 2 days ago
Select Qantas Airways flight, departing Thu, 22 Jan from Adelaide to Seattle, returning Mon, 9 Feb, priced at S$1,575 found 2 days ago
Qantas Airways
Tue, 27 Jan - Sun, 8 Feb
ADL
Adelaide
SEA
Seattle
S$1,581 Return, found 2 days ago
S$1,581
Return
found 2 days ago
Select Qantas Airways flight, departing Tue, 27 Jan from Adelaide to Seattle, returning Sun, 8 Feb, priced at S$1,581 found 2 days ago
Singapore Airlines
Sat, 9 May - Fri, 29 May
ADL
Adelaide
SEA
Seattle
S$1,588 Return, found 2 days ago
S$1,588
Return
found 2 days ago
Select Singapore Airlines flight, departing Sat, 9 May from Adelaide to Seattle, returning Fri, 29 May, priced at S$1,588 found 2 days ago
Qantas Airways
Wed, 6 May - Sun, 24 May
ADL
Adelaide
SEA
Seattle
S$1,611 Return, found 2 days ago
S$1,611
Return
found 2 days ago
Select Qantas Airways flight, departing Wed, 6 May from Adelaide to Seattle, returning Sun, 24 May, priced at S$1,611 found 2 days ago
Jetstar
Sat, 9 May - Fri, 29 May
ADL
Adelaide
SEA
Seattle
S$1,633 Return, found 2 days ago
S$1,633
Return
found 2 days ago
Select Jetstar flight, departing Sat, 9 May from Adelaide to Seattle, returning Fri, 29 May, priced at S$1,633 found 2 days ago
United
Mon, 2 Mar - Mon, 16 Mar
ADL
Adelaide
SEA
Seattle
S$1,655 Return, found 2 days ago
S$1,655
Return
found 2 days ago
Select United flight, departing Mon, 2 Mar from Adelaide to Seattle, returning Mon, 16 Mar, priced at S$1,655 found 2 days ago
Air Canada
Wed, 18 Feb - Wed, 4 Mar
ADL
Adelaide
SEA
Seattle
S$1,657 Return, found 2 days ago
S$1,657
Return
found 2 days ago
Select Air Canada flight, departing Wed, 18 Feb from Adelaide to Seattle, returning Wed, 4 Mar, priced at S$1,657 found 2 days ago
Adelaide to Seattle route information
Origin airport
Adelaide
Destination airport
Seattle - Tacoma Intl.
Return price
S$1,537
Distance
13340 km

Perfect flights from Adelaide to Seattle

Your Journey from Adelaide to Seattle

Start your unforgettable journey with Expedia. Our broad selection of flights from Adelaide to Seattle caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Fiji Airways, Singapore Airlines, American Airlines, Qantas Airways, United, Jetstar, Air Canada. Our selection of flights from Adelaide to Seattle - Tacoma Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Adelaide to Seattle Flights

Experience the joy of finding cheap flights from Adelaide to Seattle - Tacoma Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$955 and roundtrip prices from S$1,537*.
 

Pre-Flight Essentials

Ensure a smooth journey from Adelaide to Seattle with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Seattle

Picture yourself stepping off the plane in Seattle and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Adelaide to Seattle Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Adelaide to Seattle.
 

Beyond the Flight – Exploring Seattle

With Expedia, your adventure extends beyond the flight. Explore Seattle at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Adelaide to Seattle with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Adelaide to Seattle with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA)?
The lowest price advertised for a round-trip flight between Adelaide Airport (ADL) and SEA is S$1,537. But you better get a move on. This figure is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ADL to SEA?
This can vary between air carriers, as each one has its own set of terms and conditions. Head to the Customer Service Portal, where you'll find easy instructions on how to cancel online.
How do I find cheap flights from ADL to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for ADL to SEA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Adelaide Airport to Sea-Tac Airport?
With around 13,400 kilometres separating Adelaide and SeaTac, your flight will be a long one. Pack wisely and make your time on board more comfortable. Simple things like warm clothing and a quality travel pillow can make a big difference.
Which airlines fly direct from Adelaide Airport (ADL) to SEA?
Direct flights aren't available, so you'll have to make at least one stop between ADL and Seattle - Tacoma Intl. Airport (SEA). Use the layover time to stretch your legs and freshen up.
Are ADL to SEA flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from ADL to SEA can be hit-or-miss. It is possible to score a bargain, but then again, you could miss out! If you'd prefer to play it safe and start your travel planning early, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines release their prices that far in advance. Our suggestion? Check back often as prices are updated regularly.

Explore a world of travel with Expedia

*Available to Expedia members.