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Cheap flights from Adelaide to Seattle from $930

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SEA
2 Apr — 9 Apr1
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
Explore the most affordable flight options available from Adelaide to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 March 2026.

Wed 15/419:35
ADL
-
SEA
2 stops30h 33m
Multiple Airlines
Wed 22/420:00
SEA
-
ADL
2 stops25h 00m
Multiple Airlines
Deal found 1/3$1,457
Mon 13/420:00
ADL
-
SEA
2 stops30h 05m
Air Canada
Mon 20/415:40
SEA
-
ADL
2 stops27h 40m
Air Canada
Deal found 26/2$1,573
Thu 16/420:00
ADL
-
SEA
2 stops39h 50m
Air Canada
Thu 23/415:45
SEA
-
ADL
2 stops31h 40m
Air Canada
Deal found 2/3$1,635
Wed 15/719:10
ADL
-
SEA
2 stops43h 21m
Qantas Airways
Thu 30/714:32
SEA
-
ADL
2 stops28h 03m
Qantas Airways
Deal found 1/3$1,727
Fri 17/711:50
ADL
-
SEA
2 stops27h 24m
Qantas Airways
Thu 30/714:32
SEA
-
ADL
2 stops39h 33m
Qantas Airways
Deal found 2/3$1,749
Wed 15/419:00
ADL
-
SEA
3 stops42h 36m
United Airlines
Wed 22/407:12
SEA
-
ADL
2 stops35h 23m
United Airlines
Deal found 1/3$1,807
Tue 21/713:25
ADL
-
SEA
2 stops26h 00m
Qantas Airways
Wed 5/814:32
SEA
-
ADL
2 stops28h 13m
Qantas Airways
Deal found 27/2$1,849
Tue 21/706:05
ADL
-
SEA
2 stops22h 59m
United Airlines
Wed 5/817:04
SEA
-
ADL
2 stops25h 31m
United Airlines
Deal found 2/3$1,902

Find flight deals from Adelaide to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Adelaide (ADL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 March 2026.

Round-trip from

$1,457

One-way from

$930

Popular in

December

Cheapest in

November

Average price

$1,686
15/4-22/4
  • 15/4-22/4
  • 4 total stops
  • 55h 33m total
  • Adelaide to Seattle
Search Deals
14/5
  • 14/5
  • 2 total stops
  • 41h 10m total
  • Adelaide to Seattle
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Adelaide to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 3 March 2026.
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

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 17/7

12:40-22:44

2 stops26h 34m

Seattle/Tacoma Intl

Thu 30/7

14:32-16:25

2 stops33h 23m

$1,749

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

06:05-14:30

2 stops24h 55m

Seattle/Tacoma Intl

Wed 5/8

15:33-11:05

2 stops27h 02m

$1,902

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 17/7

17:10-22:44

2 stops22h 04m

Seattle/Tacoma Intl

Thu 30/7

15:59-09:25

3 stops24h 56m

$2,442

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 13/4

10:30-11:02

2 stops41h 02m

Seattle/Tacoma Intl

Mon 20/4

17:55-08:55

3 stops46h 30m

$2,853

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 28/4

13:25-15:50

2 stops42h 55m

$1,032

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sun 3/5

20:00-22:52

2 stops43h 22m

$1,033

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 20/5

13:25-21:59

2 stops49h 04m

$1,108

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 20/5

09:10-08:45

1 stop40h 05m

$1,324

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 14/5

17:35-08:45

1 stop31h 40m

$1,324

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 28/4

21:40-12:45

1 stop31h 35m

$2,164

Flights are sorted by cheapest return flights first.

Deals found on 1/3

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What’s the top stopover airport for flights from Adelaide to Seattle?

Share of one-stop return flights from Adelaide to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Singapore (SIN) – chosen by Cheapflights users on 57% of one-stop itineraries from Adelaide to Seattle on Cheapflights.

What’s the cheapest stopover airport for flights from Adelaide to Seattle?

Average return fare for one-stop flights from Adelaide to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Singapore (SIN) is the most affordable one-stop option, with an average return flight price of $3,311.

What’s the fastest stopover option from Adelaide to Seattle?

Shortest average travel time for one-stop one-way flights from Adelaide to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via San Francisco (SFO) have the shortest average one-way travel time for one-stop routes: 19h 15m.

Which airport typically offers the quickest stopover for flights from Adelaide to Seattle?

Average stopover duration for one-stop one-way flights from Adelaide to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average stopover time of 1h 44m.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 3 March 2026.
See what other customers who have flown with Air New Zealand, Virgin Australia, andQantas Airways 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 New Zealand
8.0
Very Good
606 reviews
Check prices

Comfort

8.0

Food

7.4

Entertainment

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Air New Zealand
8.0
Very Good
606 reviews
Air New Zealand
8.0
Very Good
606 reviews
Check prices

Comfort

8.0

Food

7.4

Entertainment

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Virgin Australia
7.6
Good
445 reviews
Air New Zealand
8.0
Very Good
606 reviews
Check prices

Comfort

8.0

Food

7.4

Entertainment

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Qantas Airways
7.5
Good
1,001 reviews
Air New Zealand
8.0
Very Good
606 reviews
Check prices

Comfort

8.0

Food

7.4

Entertainment

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
United Airlines
7.4
Good
9,380 reviews
Air New Zealand
8.0
Very Good
606 reviews
Check prices

Comfort

8.0

Food

7.4

Entertainment

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Air Canada
7.1
Good
10,770 reviews
Air New Zealand
8.0
Very Good
606 reviews
Check prices

Comfort

8.0

Food

7.4

Entertainment

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Related info for your journey

Find useful and relevant information for your journey from Adelaide to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Adelaide to Seattle?

    Air Canada, Qantas Airways, and United Airlines can get you from Adelaide to Seattle in just under 24h 55m. Your travel time can differ by up to 5h 10m. There are 13409 km between Adelaide and Seattle. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Adelaide to Seattle round-trip?

    According to our current data, Air New Zealand ($865), Air Canada ($1,176), and Qantas Airways ($1,265) offers the cheapest pricing from Adelaide to Seattle. These flights start at 47% 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
Ocean Shores

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Alternative routes for Adelaide to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Adelaide to Portland flights

Top 5 airlines flying from Adelaide to Seattle

Discover the top 5 airlines that operate flights from Adelaide to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 3 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest$865Average$1,189FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Air CanadaCheapest$1,176Average$1,514FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,265Average$1,674FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,487Average$1,828FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,597Average$1,716FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Adelaide to Seattle?

Cheapflights helps you search for flights from Adelaide to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Adelaide to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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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