CA $1,068 Cheap Flights from Adelaide (ADL) to Seattle (SEA)

View CA $1,068 flight on Wed, May 27, 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 (ADL) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $1,068 for one-way flights and CA $1,694 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fiji Airways
Mon, Jul 27 - Sat, Aug 8
ADL
Adelaide
SEA
Seattle
CA $1,694 Roundtrip, found 6 days ago
CA $1,694
Roundtrip
found 6 days ago
Select Fiji Airways flight, departing Mon, Jul 27 from Adelaide to Seattle, returning Sat, Aug 8, priced at CA $1,694 found 6 days ago
Jetstar
Wed, May 27 - Sun, May 31
ADL
Adelaide
SEA
Seattle
CA $2,054 Roundtrip, found 5 days ago
CA $2,054
Roundtrip
found 5 days ago
Select Jetstar flight, departing Wed, May 27 from Adelaide to Seattle, returning Sun, May 31, priced at CA $2,054 found 5 days ago
Jetstar
Wed, May 27 - Sun, May 31
ADL
Adelaide
SEA
Seattle
CA $2,055 Roundtrip, found 5 days ago
CA $2,055
Roundtrip
found 5 days ago
Select Jetstar flight, departing Wed, May 27 from Adelaide to Seattle, returning Sun, May 31, priced at CA $2,055 found 5 days ago
Qantas Airways
Wed, May 27 - Sun, May 31
ADL
Adelaide
SEA
Seattle
CA $2,100 Roundtrip, found 5 days ago
CA $2,100
Roundtrip
found 5 days ago
Select Qantas Airways flight, departing Wed, May 27 from Adelaide to Seattle, returning Sun, May 31, priced at CA $2,100 found 5 days ago
Jetstar
Wed, May 27 - Sun, May 31
ADL
Adelaide
SEA
Seattle
CA $2,111 Roundtrip, found 5 days ago
CA $2,111
Roundtrip
found 5 days ago
Select Jetstar flight, departing Wed, May 27 from Adelaide to Seattle, returning Sun, May 31, priced at CA $2,111 found 5 days ago
Jetstar
Wed, May 27 - Sun, May 31
ADL
Adelaide
SEA
Seattle
CA $2,112 Roundtrip, found 5 days ago
CA $2,112
Roundtrip
found 5 days ago
Select Jetstar flight, departing Wed, May 27 from Adelaide to Seattle, returning Sun, May 31, priced at CA $2,112 found 5 days ago
Qantas Airways
Mon, Jul 27 - Sat, Aug 8
ADL
Adelaide
SEA
Seattle
CA $2,129 Roundtrip, found 6 days ago
CA $2,129
Roundtrip
found 6 days ago
Select Qantas Airways flight, departing Mon, Jul 27 from Adelaide to Seattle, returning Sat, Aug 8, priced at CA $2,129 found 6 days ago
Jetstar
Wed, May 27 - Sun, May 31
ADL
Adelaide
SEA
Seattle
CA $2,135 Roundtrip, found 5 days ago
CA $2,135
Roundtrip
found 5 days ago
Select Jetstar flight, departing Wed, May 27 from Adelaide to Seattle, returning Sun, May 31, priced at CA $2,135 found 5 days ago
Air Canada
Mon, Jul 27 - Sat, Aug 8
ADL
Adelaide
SEA
Seattle
CA $2,404 Roundtrip, found 6 days ago
CA $2,404
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Jul 27 from Adelaide to Seattle, returning Sat, Aug 8, priced at CA $2,404 found 6 days ago
Air New Zealand
Mon, Jul 27 - Sat, Aug 8
ADL
Adelaide
SEA
Seattle
CA $2,477 Roundtrip, found 6 days ago
CA $2,477
Roundtrip
found 6 days ago
Select Air New Zealand flight, departing Mon, Jul 27 from Adelaide to Seattle, returning Sat, Aug 8, priced at CA $2,477 found 6 days ago

Frequently asked questions

How much is a flight from Adelaide Airport (ADL) to Sea-Tac Airport?
Start packing your suitcase, because round-trip journeys from ADL to SEA start from CA $1,694. That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Adelaide Airport to Sea-Tac Airport?
We understand that circumstances change unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from ADL to Sea-Tac Airport that have flexible change policies?
Flights from Adelaide Airport to Sea-Tac Airport with flexible change policies are available with many airlines. Simply use our "No change fees" filter during your search. You'll only need to cover the cost difference between the two flights, without any added fees to worry about.
How far is the flight from Adelaide Airport (ADL) to Sea-Tac Airport?
The distance is around 13,400 kilometres, so fill your carry-on luggage with everything you need to make your journey comfortable. Wondering what to take on board your Adelaide to SeaTac flight? A neck pillow, earplugs and a sleep mask are among the essentials.
Which airlines fly direct from Adelaide Airport to SEA?
You won't find any airlines operating directly between ADL and SEA, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a welcome way to break up a trip!
Are ADL to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Adelaide Airport to Sea-Tac Airport at the last minute could be your ticket to a fantastic deal. However, you might miss out on a flight altogether! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Travel information

Origin airport
Adelaide
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
CA $1,693
Distance
13340 km

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