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Cheap flights from Adelaide to Seattle from $2,125

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Adelaide to Seattle departing on 26/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

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Multiple Airlines Logo
17:50 - 18:10ADL-SEA
42h 50m2 stops
Multiple Airlines Logo
00:10 - 22:15SEA-ADL
51h 35m2 stops
$2,125Multiple Airlines
Find Deal
Wed, 26 Nov - Tue, 2 Dec
Air Canada Logo
06:10 - 09:31ADL-SEA
20h 51m2 stops
Air Canada Logo
20:00 - 13:55SEA-ADL
24h 25m2 stops
$2,167Air Canada
Find Deal
Thu, 12 Mar - Mon, 16 Mar
Air Canada Logo
06:10 - 15:01ADL-SEA
26h 21m2 stops
Air Canada Logo
20:00 - 13:55SEA-ADL
24h 25m2 stops
$2,169Air Canada
Find Deal
Thu, 12 Mar - Mon, 16 Mar
Air Canada Logo
06:10 - 19:16ADL-SEA
30h 36m2 stops
Air Canada Logo
15:40 - 13:55SEA-ADL
28h 45m2 stops
$2,183Air Canada
Find Deal
Thu, 12 Mar - Mon, 16 Mar
Qantas Airways Logo
14:55 - 20:23ADL-SEA
23h 58m2 stops
Qantas Airways Logo
06:05 - 13:00SEA-ADL
36h 25m2 stops
$2,217Qantas Airways
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Wed, 26 Nov - Wed, 3 Dec
United Airlines Logo
06:10 - 18:27ADL-SEA
29h 47m2 stops
United Airlines Logo
12:45 - 08:30SEA-ADL
26h 15m1 stop
$2,668United Airlines
Find Deal
Thu, 12 Mar - Mon, 16 Mar
United Airlines Logo
14:55 - 21:00ADL-SEA
24h 35m1 stop
United Airlines Logo
17:10 - 09:30SEA-ADL
21h 50m1 stop
$2,671United Airlines
Find Deal
Mon, 15 Dec - Sat, 17 Jan
Fiji Airways Logo
13:15 - 18:49ADL-SEA
23h 04m2 stops
Fiji Airways Logo
18:55 - 12:15SEA-ADL
47h 50m3 stops
$3,367Fiji Airways
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Thu, 12 Mar - Mon, 16 Mar
Cathay Pacific Logo
12:00 - 14:24ADL-SEA
44h 54m3 stops
Cathay Pacific Logo
15:55 - 07:05SEA-ADL
44h 40m3 stops
$3,950Cathay Pacific
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Mon, 15 Dec - Tue, 20 Jan
Cathay Pacific Logo
12:00 - 14:54ADL-SEA
45h 24m3 stops
Cathay Pacific Logo
06:20 - 13:45SEA-ADL
36h 55m3 stops
$4,252Cathay Pacific
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Sat, 20 Dec - Sun, 11 Jan

Air Canada flights from Adelaide to Seattle

Our best Air Canada deals on Adelaide to Seattle flight tickets
Air Canada
12 Mar
ADL06:10Adelaide
20h 51m
2 stops
SEA09:31Seattle/Tacoma Intl
16 Mar
SEA20:00Seattle/Tacoma Intl
24h 25m
2 stops
ADL13:55Adelaide
$2,167
Find similar
Air Canada
12 Mar
ADL06:10Adelaide
26h 21m
2 stops
SEA15:01Seattle/Tacoma Intl
16 Mar
SEA20:00Seattle/Tacoma Intl
24h 25m
2 stops
ADL13:55Adelaide
$2,169
Find similar
Air Canada
12 Mar
ADL06:10Adelaide
30h 36m
2 stops
SEA19:16Seattle/Tacoma Intl
16 Mar
SEA15:40Seattle/Tacoma Intl
28h 45m
2 stops
ADL13:55Adelaide
$2,183
Find similar

United Airlines flights from Adelaide to Seattle

Our best United Airlines deals on Adelaide to Seattle flight tickets
United Airlines
12 Mar
ADL06:10Adelaide
29h 47m
2 stops
SEA18:27Seattle/Tacoma Intl
16 Mar
SEA12:45Seattle/Tacoma Intl
26h 15m
1 stop
ADL08:30Adelaide
$2,668
Find similar
United Airlines
15 Dec
ADL14:55Adelaide
24h 35m
1 stop
SEA21:00Seattle/Tacoma Intl
17 Jan
SEA17:10Seattle/Tacoma Intl
21h 50m
1 stop
ADL09:30Adelaide
$2,671
Find similar
United Airlines
15 Dec
ADL14:55Adelaide
24h 50m
2 stops
SEA21:15Seattle/Tacoma Intl
17 Jan
SEA08:40Seattle/Tacoma Intl
30h 20m
2 stops
ADL09:30Adelaide
$2,677
Find similar

momondo 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, momondo users made 78,305 searches. Data last updated 14 October 2025.
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

Wed 26/11

17:50-18:10

2 stops42h 50m

Seattle/Tacoma Intl

Tue 2/12

00:10-22:15

2 stops51h 35m

$2,125

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 12/3

06:10-09:31

2 stops20h 51m

Seattle/Tacoma Intl

Mon 16/3

20:00-13:55

2 stops24h 25m

$2,167

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 12/3

06:10-15:01

2 stops26h 21m

Seattle/Tacoma Intl

Mon 16/3

20:00-13:55

2 stops24h 25m

$2,169

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 12/3

06:10-19:16

2 stops30h 36m

Seattle/Tacoma Intl

Mon 16/3

15:40-13:55

2 stops28h 45m

$2,183

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 26/11

14:55-20:23

2 stops23h 58m

Seattle/Tacoma Intl

Wed 3/12

06:05-13:00

2 stops36h 25m

$2,217

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 12/3

06:10-18:27

2 stops29h 47m

Seattle/Tacoma Intl

Mon 16/3

12:45-08:30

1 stop26h 15m

$2,668

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 15/12

14:55-21:00

1 stop24h 35m

Seattle/Tacoma Intl

Sat 17/1

17:10-09:30

1 stop21h 50m

$2,671

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 12/3

13:15-18:49

2 stops23h 04m

Seattle/Tacoma Intl

Mon 16/3

18:55-12:15

3 stops47h 50m

$3,367

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 15/12

12:00-14:24

3 stops44h 54m

Seattle/Tacoma Intl

Tue 20/1

15:55-07:05

3 stops44h 40m

$3,950

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 20/12

12:00-14:54

3 stops45h 24m

Seattle/Tacoma Intl

Sun 11/1

06:20-13:45

3 stops36h 55m

$4,252

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Seattle from

How to get the cheapest flight ticket from Adelaide to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

The month of November is, on average, the cheapest month to fly to Seattle from Adelaide, with most prices found around $1,463. If you are unable to visit Seattle during the month of November, then departing from Adelaide during the month January is also very affordable. Most momondo users find prices during this month for around $1,654.

What is the cheapest day to depart on your flight to Seattle?

The cheapest day to depart from Adelaide to Seattle is on a Tuesday. Travellers who choose to depart for Seattle on a Tuesday will often find tickets for as low as $1,613. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Adelaide to Seattle for around $2,342.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is in the afternoon. momondo users have found flights departing from Adelaide to Seattle in the afternoon for as low as $1,794. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is at midday when prices are around $2,404.

Can stopping save me money on Adelaide to Seattle flights?

You could potentially save up to 8% on your flight if you consider stops on a Adelaide to Seattle flight.

When to book flights from Adelaide to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Adelaide to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Adelaide to Seattle (ADL to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Adelaide to Seattle

Direct flights

None
There are no direct flights from Adelaide to Seattle. There are no popular flight routes from Adelaide to Seattle.
Search flight deals

  • How far is Adelaide to Seattle/Tacoma Intl by plane?

    Adelaide and Seattle/Tacoma Intl are 13407.3 km apart from one another. A reasonable flight in good conditions will take 20h 51m.

  • When did momondo last update prices for flights from Adelaide Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Adelaide Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Adelaide Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Adelaide Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Adelaide Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Adelaide to Seattle?

Best airlines flying from Adelaide to Seattle

Compare and see reviews for airlines that fly from Adelaide to Seattle with momondo
Airline
Rating
Free cancellation
Price
Air New ZealandPriceFrom $940Free cancellationRating
8.0
513 reviews
Search Air New Zealand flights
Qantas AirwaysPriceFrom $1,374Free cancellationRating
7.5
920 reviews
Search Qantas Airways flights
Singapore AirlinesPriceFrom $1,426Free cancellationRating
8.1
1,379 reviews
Search Singapore Airlines flights
Air CanadaPriceFrom $1,478Free cancellationRating
7.1
10,294 reviews
Search Air Canada flights
Virgin AustraliaPriceFrom $1,735Free cancellationRating
7.6
419 reviews
Search Virgin Australia flights
United AirlinesPriceFrom $1,748Free cancellationRating
7.4
8,975 reviews
Search United Airlines flights

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac

Why use momondo?

Why should I use momondo to find a flight deal from Adelaide to Seattle?

Finding the right flight to Seattle from Adelaide is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Adelaide to Seattle with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Adelaide to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Adelaide to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Adelaide to Seattle.

I’m not ready to book a flight from Adelaide to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Adelaide. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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