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Cheap flights from South Australia to Seattle from $778

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Australia to Seattle departing on 15/10. 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

Logo
06:10 - 09:21ADL-SEA
20h 41m2 stops
Logo
20:00 - 22:30SEA-ADL
33h 00m2 stops
$1,439
Find Deal
Fri, 24 Oct - Fri, 31 Oct
Logo
06:10 - 09:21ADL-SEA
20h 41m2 stops
Logo
20:00 - 22:30SEA-ADL
33h 00m2 stops
$1,507
Find Deal
Wed, 22 Oct - Wed, 29 Oct
United Airlines Logo
14:55 - 15:29ADL-SEA
19h 04m1 stop
United Airlines Logo
17:10 - 09:30SEA-ADL
21h 50m1 stop
$1,644United Airlines
Find Deal
Mon, 15 Dec - Sat, 17 Jan
United Airlines Logo
14:55 - 15:29ADL-SEA
19h 04m1 stop
United Airlines Logo
08:40 - 09:30SEA-ADL
30h 20m2 stops
$1,650United Airlines
Find Deal
Mon, 15 Dec - Sat, 17 Jan
United Airlines Logo
14:55 - 10:09ADL-SEA
37h 44m2 stops
United Airlines Logo
19:30 - 09:30SEA-ADL
19h 30m1 stop
$1,659United Airlines
Find Deal
Mon, 15 Dec - Sat, 17 Jan
United Airlines Logo
07:15 - 15:29ADL-SEA
26h 44m2 stops
United Airlines Logo
12:25 - 09:30SEA-ADL
26h 35m2 stops
$1,685United Airlines
Find Deal
Mon, 15 Dec - Sat, 17 Jan
Singapore Airlines Logo
18:35 - 08:10ADL-SEA
55h 05m1 stop
Singapore Airlines Logo
09:45 - 17:20SEA-ADL
62h 05m1 stop
$2,338Singapore Airlines
Find Deal
Fri, 24 Oct - Fri, 31 Oct
Qantas Airways Logo
06:00 - 12:32ADL-SEA
25h 02m2 stops
Qantas Airways Logo
15:35 - 10:55SEA-ADL
24h 50m2 stops
$2,472Qantas Airways
Find Deal
Wed, 17 Dec - Tue, 20 Jan
Air Canada Logo
20:00 - 21:45ADL-SEA
43h 15m3 stops
Air Canada Logo
08:15 - 18:10SEA-ADL
40h 25m3 stops
$2,586Air Canada
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Wed, 22 Oct - Wed, 29 Oct
Qantas Airways Logo
17:10 - 18:43ADL-SEA
44h 03m2 stops
Qantas Airways Logo
06:02 - 11:50SEA-ADL
35h 18m2 stops
$2,667Qantas Airways
Find Deal
Sat, 20 Dec - Sun, 11 Jan

Qantas Airways flights from South Australia to Seattle

Our best Qantas Airways deals on South Australia to Seattle flight tickets
Qantas Airways
17 Dec
ADL06:00Adelaide
25h 02m
2 stops
SEA12:32Seattle/Tacoma Intl
20 Jan
SEA15:35Seattle/Tacoma Intl
24h 50m
2 stops
ADL10:55Adelaide
$2,472
Find similar
Qantas Airways
20 Dec
ADL17:10Adelaide
44h 03m
2 stops
SEA18:43Seattle/Tacoma Intl
11 Jan
SEA06:02Seattle/Tacoma Intl
35h 18m
2 stops
ADL11:50Adelaide
$2,667
Find similar

China Airlines flights from South Australia to Seattle

Our best China Airlines deals on South Australia to Seattle flight tickets
China Airlines
17 Dec
ADL16:30Adelaide
44h 10m
2 stops
SEA18:10Seattle/Tacoma Intl
19 Jan
SEA00:10Seattle/Tacoma Intl
47h 05m
2 stops
ADL17:45Adelaide
$2,946
Find similar
China Airlines
15 Dec
ADL17:10Adelaide
43h 30m
2 stops
SEA18:10Seattle/Tacoma Intl
19 Jan
SEA00:10Seattle/Tacoma Intl
47h 05m
2 stops
ADL17:45Adelaide
$2,978
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momondo Fare Finder

 
Customise your flight search to find flights from South Australia 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 9 September 2025.
Use the filters below to find and compare flights from South Australia to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 24/10

06:10-09:21

2 stops20h 41m

Seattle/Tacoma Intl

Fri 31/10

20:00-22:30

2 stops33h 00m

$1,439

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 22/10

06:10-09:21

2 stops20h 41m

Seattle/Tacoma Intl

Wed 29/10

20:00-22:30

2 stops33h 00m

$1,507

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 15/12

14:55-15:29

1 stop19h 04m

Seattle/Tacoma Intl

Sat 17/1

17:10-09:30

1 stop21h 50m

$1,644

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 15/12

14:55-15:29

1 stop19h 04m

Seattle/Tacoma Intl

Sat 17/1

08:40-09:30

2 stops30h 20m

$1,650

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 15/12

14:55-10:09

2 stops37h 44m

Seattle/Tacoma Intl

Sat 17/1

19:30-09:30

1 stop19h 30m

$1,659

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 15/12

07:15-15:29

2 stops26h 44m

Seattle/Tacoma Intl

Sat 17/1

12:25-09:30

2 stops26h 35m

$1,685

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 24/10

18:35-08:10

1 stop55h 05m

Seattle/Tacoma Intl

Fri 31/10

09:45-17:20

1 stop62h 05m

$2,338

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 17/12

06:00-12:32

2 stops25h 02m

Seattle/Tacoma Intl

Tue 20/1

15:35-10:55

2 stops24h 50m

$2,472

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 22/10

20:00-21:45

3 stops43h 15m

Seattle/Tacoma Intl

Wed 29/10

08:15-18:10

3 stops40h 25m

$2,586

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 20/12

17:10-18:43

2 stops44h 03m

Seattle/Tacoma Intl

Sun 11/1

06:02-11:50

2 stops35h 18m

$2,667

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from South Australia 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 South Australia, with most prices found around $1,465. If you are unable to visit Seattle during the month of November, then departing from South Australia during the month February is also very affordable. Most momondo users find prices during this month for around $1,712.

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

The cheapest day to depart from South Australia to Seattle is on a Tuesday. Travellers who choose to depart for Seattle on a Tuesday will often find tickets for as low as $1,598. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from South Australia to Seattle for around $2,320.

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 South Australia to Seattle in the afternoon for as low as $1,777. 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 $2,381.

Can stopping save me money on South Australia to Seattle flights?

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

Cheap South Australia to Seattle flight deals and tips

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

Direct flights

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

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

    Prices for flights from South Australia to Seattle/Tacoma Intl Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from South Australia 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.

Best airlines flying from South Australia to Seattle

Compare and see reviews for airlines that fly from South Australia to Seattle with momondo
Airline
Rating
Free cancellation
Price
Air New ZealandPriceFrom $931Free cancellationRating
8.0
506 reviews
Search Air New Zealand flights
Air CanadaPriceFrom $1,266Free cancellationRating
7.1
10,000 reviews
Search Air Canada flights
Singapore AirlinesPriceFrom $1,413Free cancellationRating
8.1
1,365 reviews
Search Singapore Airlines flights
Qantas AirwaysPriceFrom $1,447Free cancellationRating
7.5
905 reviews
Search Qantas Airways flights
Virgin AustraliaPriceFrom $1,729Free cancellationRating
7.5
416 reviews
Search Virgin Australia flights
United AirlinesPriceFrom $1,731Free cancellationRating
7.4
8,943 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 South Australia to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from South Australia to Seattle for you.

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

All flight searches from South Australia to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from South Australia to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from South Australia.

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

Price alerts on flights to Seattle from South Australia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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