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Cheap flights from Adelaide to Seattle from $1,908

ADL — SEA
19 Oct — 26 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Adelaide to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Adelaide to Seattle

Fri 30/1010:15 -
1 stop39h 20m
Fri 6/1108:40 -
1 stop53h 40m
Deal found 15/9$1,908
Fri 30/1006:25 -
2 stops27h 12m
Fri 6/1113:35 -
2 stops29h 40m
Deal found 15/9$1,984
Thu 15/1012:40 -
2 stops34h 54m
Wed 21/1007:00 -
2 stops32h 25m
Deal found 16/9$2,057
Tue 24/1106:10 -
2 stops30h 42m
Tue 15/1215:15 -
2 stops25h 10m
Deal found 19/9$2,099
Tue 24/1108:40 -
2 stops26h 17m
Tue 15/1212:25 -
2 stops31h 00m
Deal found 16/9$2,106
Wed 23/1214:55 -
1 stop20h 07m
Mon 11/107:03 -
2 stops31h 57m
Deal found 14/9$2,220
Thu 24/1207:15 -
2 stops30h 59m
Sun 10/114:10 -
2 stops48h 50m
Deal found 14/9$2,238
Tue 22/1219:55 -
2 stops34h 57m
Mon 11/110:54 -
2 stops28h 06m
Deal found 14/9$2,239
Wed 23/1214:55 -
2 stops25h 00m
Tue 12/116:30 -
2 stops26h 55m
Deal found 14/9$2,259
Thu 24/1207:15 -
2 stops30h 59m
Sat 9/119:32 -
2 stops44h 53m
Deal found 14/9$2,277
Fri 30/1010:15 -
2 stops40h 34m
Fri 6/1108:40 -
1 stop29h 40m
Deal found 15/9$2,279

Find flight deals from Adelaide to Seattle

Round-trip from

$1,908

Popular in

May

Cheapest in

July

Average price

$1,989
Singapore Airlines
  • Singapore Airlines
  • 30/10-6/11
  • 2 total stops
  • 93h 00m total
  • Adelaide to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($255 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($86 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Adelaide to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 30/10

06:25-16:07

2 stops27h 12m

Seattle/Tacoma Intl

Fri 6/11

13:35-13:45

2 stops29h 40m

$1,984

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Thu 15/10

12:40-06:04

2 stops34h 54m

Seattle/Tacoma Intl

Wed 21/10

07:00-08:55

2 stops32h 25m

$2,057
Fastest return journey

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-18:22

2 stops30h 42m

Seattle/Tacoma Intl

Tue 15/12

15:15-10:55

2 stops25h 10m

$2,099

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 30/10

10:15-09:19

2 stops40h 34m

Seattle/Tacoma Intl

Fri 6/11

08:40-08:50

1 stop29h 40m

$2,279

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

17:20-21:25

2 stops22h 35m

Seattle/Tacoma Intl

Tue 15/12

12:12-08:10

2 stops49h 28m

$2,307

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Thu 24/12

07:15-19:44

2 stops30h 59m

Seattle/Tacoma Intl

Fri 8/1

15:51-09:30

2 stops47h 09m

$2,308

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Sat 26/12

14:55-21:25

2 stops25h 00m

Seattle/Tacoma Intl

Sun 10/1

15:51-09:30

2 stops47h 09m

$2,360

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Thu 15/10

19:20-12:25

2 stops34h 35m

Seattle/Tacoma Intl

Wed 21/10

16:25-16:00

1 stop30h 05m

$2,371

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 30/10

06:05-09:45

2 stops45h 10m

Seattle/Tacoma Intl

Fri 6/11

18:33-07:05

3 stops42h 02m

$2,444

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 25/12

06:10-20:40

2 stops33h 00m

Seattle/Tacoma Intl

Tue 12/1

16:30-13:55

2 stops26h 55m

$2,674

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Sorted by cheapest first

Best time to book a flight from Adelaide to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Adelaide with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Adelaide to Seattle

How much does it cost for a return flight from Adelaide to Seattle?

Airfare is above average for this route at the moment.

Adelaide to Seattle flights typically cost between $1,800 and $1,889 in October.
The cheapest return price found within the last 5 days was $1,908 on Singapore Airlines (30 Oct–6 Nov).

Reviews of airlines servicing Seattle

See what other customers who have flown with Air Canada from Adelaide to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,652 reviews
Check prices

Boarding

7.3

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YYZ - PHL

Our flight from Kelowna was 5 hours delayed. We missed our connection. We were able to get to a hotel by 3:00 a.m. but the breakfast cost us $40. The hotel was good. We were rescheduled for the flight the next night when it was canceled. There were no hotel vouchers available which didn't matter because there were no hotel rooms available. We decided to just drive which was not easy doing a one-way rental to the United States. Worst possible trip I've ever had
Air Canada
7.1
Good
11,652 reviews
Air Canada
7.1
Good
11,652 reviews
Check prices

Boarding

7.3

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Sylvia,Aug 2026

YYZ - PHL

Our flight from Kelowna was 5 hours delayed. We missed our connection. We were able to get to a hotel by 3:00 a.m. but the breakfast cost us $40. The hotel was good. We were rescheduled for the flight the next night when it was canceled. There were no hotel vouchers available which didn't matter because there were no hotel rooms available. We decided to just drive which was not easy doing a one-way rental to the United States. Worst possible trip I've ever had

Related info for your journey

  • How long is the flight from Adelaide to Seattle?

    Qantas Airways and Air Canada can get you from Adelaide to Seattle in just under 27h 12m. Your travel time can differ by up to 3h 30m. There are 13409 km between Adelaide and Seattle. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Adelaide to Seattle round-trip?

    According to our current data, Air Canada ($1,340), offers the cheapest pricing from Adelaide to Seattle. This flight start at 24% lower than the current average price 3 months from now.

  • Can I find deals for flights from Adelaide to Seattle that include hotel bookings?

    Yes. In addition to deals on Adelaide to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Adelaide to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Adelaide to Seattle.

  • Can I find deals for business class flights from Adelaide to Seattle?

    Yes. Cheapflights offers flight deals from Adelaide to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Ocean Shores

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Alternative routes for Adelaide to Seattle

Adelaide to Portland flights

Top airline flying from Adelaide to Seattle

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,340Average$1,454FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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Why should you use Cheapflights to find cheap flight tickets from Adelaide to Seattle?

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Can Cheapflights find flights from Adelaide to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Adelaide shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Adelaide to Seattle become cheaper?

Yes! Start tracking prices for Adelaide to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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