What is the cheapest airline that flies from South Australia to Seattle/Tacoma Intl?

United Airlines, Virgin Australia, and Alaska Airlines are the most popular carriers operating from South Australia to Seattle/Tacoma Intl

Which airlines fly to Seattle?

Virgin Australia, Qantas Airways and Singapore Airlines are the top three most popular airlines that fly to Seattle from South Australia according to our data. Virgin Australia is the first choice among our users, with 34% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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?

There are 6 operators available for flights from South Australia to Seattle/Tacoma Intl Airport as of November 2025.

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.

$1,468 Cheap Flights from South Australia to Seattle in 2025/26

1 adult

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Find the cheapest flights from South Australia to Seattle

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

07:05 - 20:58ADL-SEA

31h 23m2 stops

16:50 - 19:35SEA-ADL

33h 15m2 stops

$1,720Qantas Airways

Find Deal

Wed, 11 Mar - Sun, 15 Mar

10:35 - 20:58ADL-SEA

27h 53m2 stops

16:50 - 13:00SEA-ADL

26h 40m2 stops

$1,728Qantas Airways

Find Deal

Wed, 11 Mar - Sun, 15 Mar

11:55 - 16:36ADL-SEA

23h 11m2 stops

15:45 - 10:55SEA-ADL

24h 40m2 stops

$1,895Multiple Airlines

Find Deal

Mon, 8 Dec - Mon, 15 Dec

10:15 - 08:10ADL-SEA

39h 25m1 stop

09:45 - 08:50SEA-ADL

29h 35m1 stop

$1,915Singapore Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

10:15 - 08:10ADL-SEA

39h 25m1 stop

09:45 - 08:50SEA-ADL

29h 35m1 stop

$1,923Singapore Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

10:15 - 08:10ADL-SEA

39h 25m1 stop

09:45 - 08:50SEA-ADL

29h 35m1 stop

$1,924Singapore Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

14:55 - 16:52ADL-SEA

20h 27m1 stop

14:10 - 09:30SEA-ADL

48h 50m2 stops

$2,289United Airlines

Find Deal

Wed, 24 Dec - Wed, 14 Jan

13:55 - 16:14ADL-SEA

19h 49m1 stop

19:10 - 08:30SEA-ADL

43h 50m2 stops

$2,364United Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

14:55 - 21:17ADL-SEA

24h 52m2 stops

10:52 - 09:30SEA-ADL

28h 08m2 stops

$2,373United Airlines

Find Deal

Sat, 27 Dec - Sat, 3 Jan

13:55 - 16:14ADL-SEA

19h 49m1 stop

19:10 - 08:30SEA-ADL

43h 50m2 stops

$2,375United Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

Virgin Australia flights from South Australia to Seattle

Our best Virgin Australia deals on South Australia to Seattle flight tickets

Virgin Australia

8 Dec

ADL08:30Adelaide

25h 29m

2 stops

SEA15:29Seattle/Tacoma Intl

15 Dec

SEA09:25Seattle/Tacoma Intl

29h 35m

1 stop

ADL09:30Adelaide

$2,390

Find similar

Virgin Australia

23 Dec

ADL21:50Adelaide

37h 04m

2 stops

SEA16:24Seattle/Tacoma Intl

13 Jan

SEA09:25Seattle/Tacoma Intl

36h 25m

2 stops

ADL16:20Adelaide

$2,586

Find similar

Virgin Australia

27 Dec

ADL14:55Adelaide

28h 34m

1 stop

SEA00:59Seattle/Tacoma Intl

3 Jan

SEA12:35Seattle/Tacoma Intl

26h 25m

1 stop

ADL09:30Adelaide

$2,673

Find similar

United Airlines flights from South Australia to Seattle

Our best United Airlines deals on South Australia to Seattle flight tickets

United Airlines

24 Dec

ADL14:55Adelaide

24h 52m

2 stops

SEA21:17Seattle/Tacoma Intl

14 Jan

SEA14:10Seattle/Tacoma Intl

48h 50m

2 stops

ADL09:30Adelaide

$2,289

Find similar

United Airlines

11 Mar

ADL13:55Adelaide

19h 49m

1 stop

SEA16:14Seattle/Tacoma Intl

15 Mar

SEA19:10Seattle/Tacoma Intl

43h 50m

2 stops

ADL08:30Adelaide

$2,364

Find similar

United Airlines

27 Dec

ADL14:55Adelaide

24h 52m

2 stops

SEA21:17Seattle/Tacoma Intl

3 Jan

SEA10:52Seattle/Tacoma Intl

28h 08m

2 stops

ADL09:30Adelaide

$2,373

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

07:05-20:58

2 stops31h 23m

Seattle/Tacoma Intl

Sun 15/3

16:50-19:35

2 stops33h 15m

$1,720

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

10:35-20:58

2 stops27h 53m

Seattle/Tacoma Intl

Sun 15/3

16:50-13:00

2 stops26h 40m

$1,728

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 8/12

11:55-16:36

2 stops23h 11m

Seattle/Tacoma Intl

Mon 15/12

15:45-10:55

2 stops24h 40m

$1,895

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

10:15-08:10

1 stop39h 25m

Seattle/Tacoma Intl

Sun 15/3

09:45-08:50

1 stop29h 35m

$1,915

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

10:15-08:10

1 stop39h 25m

Seattle/Tacoma Intl

Sun 15/3

09:45-08:50

1 stop29h 35m

$1,923

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

10:15-08:10

1 stop39h 25m

Seattle/Tacoma Intl

Sun 15/3

09:45-08:50

1 stop29h 35m

$1,924

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 24/12

14:55-16:52

1 stop20h 27m

Seattle/Tacoma Intl

Wed 14/1

14:10-09:30

2 stops48h 50m

$2,289

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

13:55-16:14

1 stop19h 49m

Seattle/Tacoma Intl

Sun 15/3

19:10-08:30

2 stops43h 50m

$2,364

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 27/12

14:55-21:17

2 stops24h 52m

Seattle/Tacoma Intl

Sat 3/1

10:52-09:30

2 stops28h 08m

$2,373

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

13:55-16:14

1 stop19h 49m

Seattle/Tacoma Intl

Sun 15/3

19:10-08:30

2 stops43h 50m

$2,375

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $1,611. 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 $2,339.

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 $1,791. 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 $2,401.

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?
There are 6 operators available for flights from South Australia to Seattle/Tacoma Intl Airport as of November 2025.
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 Zealand	PriceFrom $939	Free cancellation	Rating 8.0 526 reviews	Search Air New Zealand flights
Qantas Airways	PriceFrom $1,373	Free cancellation	Rating 7.5 933 reviews	Search Qantas Airways flights
Singapore Airlines	PriceFrom $1,424	Free cancellation	Rating 8.1 1,400 reviews	Search Singapore Airlines flights
Air Canada	PriceFrom $1,476	Free cancellation	Rating 7.1 10,443 reviews	Search Air Canada flights
Virgin Australia	PriceFrom $1,743	Free cancellation	Rating 7.6 424 reviews	Search Virgin Australia flights
United Airlines	PriceFrom $1,746	Free cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights

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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Cheap flights from South Australia to Seattle from $1,468

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 24/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from South Australia to Seattle

Cheap return flights

Cheap one-way flights

Virgin Australia flights from South Australia to Seattle

Our best Virgin Australia deals on South Australia to Seattle flight tickets

United Airlines flights from South Australia to Seattle

Our best United Airlines deals on South Australia to Seattle flight tickets

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

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 day to depart on your flight to Seattle?

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

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.

What is the cheapest airline that flies from South Australia to Seattle/Tacoma Intl?

United Airlines, Virgin Australia, and Alaska Airlines are the most popular carriers operating from South Australia to Seattle/Tacoma Intl

Which airlines fly to Seattle?

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

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

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?

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

Best airlines flying from South Australia to Seattle

Compare and see reviews for airlines that fly from South Australia to Seattle with momondo

Travelling to a place near Seattle?

Why use momondo?

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

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

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

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

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington