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

Singapore Airlines is the most popular carrier 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 33% 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 December 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.

$1,044 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

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

16:10 - 19:16

ADL

SEA

45h 36m2 stops

09:55 - 10:10

SEA

ADL

53h 45m2 stops

$1,513Multiple Airlines

Sat, 24 Jan - Sat, 31 Jan

12:35 - 20:35

ADL

SEA

24h 30m2 stops

18:52 - 11:35

SEA

ADL

24h 13m2 stops

$1,524Multiple Airlines

Mon, 18 May - Tue, 26 May

17:35 - 08:45

ADL

SEA

31h 40m1 stop

10:15 - 16:20

SEA

ADL

37h 35m1 stop

$1,596Singapore Airlines

Mon, 18 May - Tue, 26 May

13:40 - 19:58

ADL

SEA

24h 48m2 stops

16:50 - 09:50

SEA

ADL

23h 30m2 stops

$1,731Qantas Airways

Thu, 5 Mar - Mon, 9 Mar

10:35 - 19:58

ADL

SEA

27h 53m2 stops

16:50 - 09:50

SEA

ADL

23h 30m2 stops

$1,733Qantas Airways

Thu, 5 Mar - Mon, 9 Mar

13:40 - 19:58

ADL

SEA

24h 48m2 stops

16:50 - 18:00

SEA

ADL

31h 40m2 stops

$1,736Qantas Airways

Thu, 5 Mar - Mon, 9 Mar

12:15 - 08:45

ADL

SEA

37h 00m2 stops

10:15 - 07:25

SEA

ADL

28h 40m1 stop

$1,949Singapore Airlines

Mon, 18 May - Tue, 26 May

06:00 - 22:49

ADL

SEA

33h 19m2 stops

14:40 - 10:20

SEA

ADL

27h 10m2 stops

$2,038Qantas Airways

Mon, 18 May - Mon, 25 May

18:30 - 22:49

ADL

SEA

44h 49m2 stops

14:40 - 09:25

SEA

ADL

26h 15m2 stops

$2,048Qantas Airways

Sun, 17 May - Mon, 25 May

12:40 - 22:49

ADL

SEA

50h 39m2 stops

08:00 - 09:25

SEA

ADL

32h 55m2 stops

$2,062American Airlines

Sun, 17 May - Tue, 26 May

United Airlines flights from South Australia to Seattle

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

United Airlines

24 Jan

ADL14:55Adelaide

19h 19m

1 stop

SEA15:44Seattle/Tacoma Intl

31 Jan

SEA10:58Seattle/Tacoma Intl

28h 02m

2 stops

ADL09:30Adelaide

$2,367

Find similar

United Airlines

10 Jan

ADL14:55Adelaide

22h 03m

1 stop

SEA18:28Seattle/Tacoma Intl

24 Jan

SEA07:00Seattle/Tacoma Intl

32h 00m

2 stops

ADL09:30Adelaide

$2,630

Find similar

United Airlines

10 Jan

ADL09:30Adelaide

44h 41m

2 stops

SEA11:41Seattle/Tacoma Intl

24 Jan

SEA08:10Seattle/Tacoma Intl

56h 15m

3 stops

ADL10:55Adelaide

$2,725

Find similar

Cathay Pacific flights from South Australia to Seattle

Our best Cathay Pacific deals on South Australia to Seattle flight tickets

Cathay Pacific

24 Jan

ADL10:10Adelaide

42h 21m

3 stops

SEA10:01Seattle/Tacoma Intl

31 Jan

SEA15:45Seattle/Tacoma Intl

44h 50m

3 stops

ADL07:05Adelaide

$2,648

Find similar

Cathay Pacific

15 Dec

ADL12:00Adelaide

44h 54m

3 stops

SEA14:24Seattle/Tacoma Intl

17 Jan

SEA17:59Seattle/Tacoma Intl

46h 46m

3 stops

ADL11:15Adelaide

$4,122

Find similar

Cathay Pacific

15 Dec

ADL12:00Adelaide

45h 08m

3 stops

SEA14:38Seattle/Tacoma Intl

17 Jan

SEA17:59Seattle/Tacoma Intl

46h 46m

3 stops

ADL11:15Adelaide

$4,128

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 24/1

16:10-19:16

2 stops45h 36m

Seattle/Tacoma Intl

Sat 31/1

09:55-10:10

2 stops53h 45m

$1,513

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 18/5

12:35-20:35

2 stops24h 30m

Seattle/Tacoma Intl

Tue 26/5

18:52-11:35

2 stops24h 13m

$1,524

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 18/5

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Tue 26/5

10:15-16:20

1 stop37h 35m

$1,596

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 5/3

13:40-19:58

2 stops24h 48m

Seattle/Tacoma Intl

Mon 9/3

16:50-09:50

2 stops23h 30m

$1,731

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 5/3

10:35-19:58

2 stops27h 53m

Seattle/Tacoma Intl

Mon 9/3

16:50-09:50

2 stops23h 30m

$1,733

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 5/3

13:40-19:58

2 stops24h 48m

Seattle/Tacoma Intl

Mon 9/3

16:50-18:00

2 stops31h 40m

$1,736

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 18/5

12:15-08:45

2 stops37h 00m

Seattle/Tacoma Intl

Tue 26/5

10:15-07:25

1 stop28h 40m

$1,949

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 18/5

06:00-22:49

2 stops33h 19m

Seattle/Tacoma Intl

Mon 25/5

14:40-10:20

2 stops27h 10m

$2,038

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sun 17/5

18:30-22:49

2 stops44h 49m

Seattle/Tacoma Intl

Mon 25/5

14:40-09:25

2 stops26h 15m

$2,048

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sun 17/5

12:40-22:49

2 stops50h 39m

Seattle/Tacoma Intl

Tue 26/5

08:00-09:25

2 stops32h 55m

$2,062

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 $1,581. 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 $2,296.

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 $1,759. 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 $2,357.

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

Fastest flight time	23h 48m
Direct flights	None

The fastest flight from South Australia to Seattle takes 23h 48m

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 December 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 $922	Free cancellation	Rating 8.0 552 reviews	Search Air New Zealand flights
Qantas Airways	PriceFrom $1,348	Free cancellation	Rating 7.5 947 reviews	Search Qantas Airways flights
Singapore Airlines	PriceFrom $1,398	Free cancellation	Rating 8.1 1,412 reviews	Search Singapore Airlines flights
Air Canada	PriceFrom $1,449	Free cancellation	Rating 7.1 10,514 reviews	Search Air Canada flights
Virgin Australia	PriceFrom $1,701	Free cancellation	Rating 7.6 426 reviews	Search Virgin Australia flights
United Airlines	PriceFrom $1,714	Free cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights

Leavenworth

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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 $1,044

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 8/6. 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

Cheap last-minute flights

United Airlines flights from South Australia to Seattle

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

Cathay Pacific flights from South Australia to Seattle

Our best Cathay Pacific deals on South Australia to Seattle flight tickets

momondo Fare Finder

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

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?

Singapore Airlines is the most popular carrier 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

Fastest flight time

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