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 31% 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.

$1,437 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.

06:10 - 19:16

ADL

SEA

30h 36m2 stops

20:00 - 13:55

SEA

ADL

24h 25m2 stops

$1,951Air Canada

Thu, 19 Mar - Mon, 23 Mar

12:05 - 20:42

ADL

SEA

26h 07m2 stops

14:53 - 13:00

SEA

ADL

28h 37m2 stops

$2,012Qantas Airways

Thu, 19 Mar - Mon, 23 Mar

08:30 - 16:14

ADL

SEA

25h 14m2 stops

17:20 - 08:30

SEA

ADL

21h 40m1 stop

$2,656Virgin Australia

Thu, 19 Mar - Mon, 23 Mar

06:10 - 16:14

ADL

SEA

27h 34m2 stops

12:36 - 08:30

SEA

ADL

26h 24m1 stop

$2,673Virgin Australia

Thu, 19 Mar - Mon, 23 Mar

12:40 - 23:59

ADL

SEA

27h 49m2 stops

08:00 - 22:35

SEA

ADL

22h 05m2 stops

$9,152Multiple Airlines

Thu, 28 May - Thu, 18 Jun

06:25 - 21:55

ADL

SEA

32h 00m2 stops

08:00 - 22:35

SEA

ADL

22h 05m2 stops

$9,210Multiple Airlines

Thu, 28 May - Thu, 18 Jun

17:35 - 08:45

ADL

SEA

31h 40m1 stop

10:15 - 16:20

SEA

ADL

37h 35m1 stop

$10,600Singapore Airlines

Thu, 28 May - Thu, 18 Jun

17:35 - 08:45

ADL

SEA

31h 40m1 stop

10:15 - 07:25

SEA

ADL

28h 40m1 stop

$10,668Singapore Airlines

Thu, 28 May - Thu, 18 Jun

17:35 - 19:05

ADL

SEA

42h 00m2 stops

10:15 - 07:25

SEA

ADL

28h 40m1 stop

$10,828Multiple Airlines

Thu, 28 May - Thu, 18 Jun

09:10 - 08:25

ADL

SEA

39h 45m2 stops

10:15 - 07:25

SEA

ADL

28h 40m1 stop

$10,898Multiple Airlines

Thu, 28 May - Thu, 18 Jun

Virgin Australia flights from South Australia to Seattle

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

Virgin Australia

19 Mar

ADL08:30Adelaide

25h 14m

2 stops

SEA16:14Seattle/Tacoma Intl

23 Mar

SEA17:20Seattle/Tacoma Intl

21h 40m

1 stop

ADL08:30Adelaide

$2,656

Find similar

Virgin Australia

19 Mar

ADL06:10Adelaide

27h 34m

2 stops

SEA16:14Seattle/Tacoma Intl

23 Mar

SEA12:36Seattle/Tacoma Intl

26h 24m

1 stop

ADL08:30Adelaide

$2,673

Find similar

Singapore Airlines flights from South Australia to Seattle

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

Singapore Airlines

28 May

ADL17:35Adelaide

31h 40m

1 stop

SEA08:45Seattle/Tacoma Intl

18 June

SEA10:15Seattle/Tacoma Intl

37h 35m

1 stop

ADL16:20Adelaide

$10,600

Find similar

Singapore Airlines

28 May

ADL17:35Adelaide

31h 40m

1 stop

SEA08:45Seattle/Tacoma Intl

18 June

SEA10:15Seattle/Tacoma Intl

28h 40m

1 stop

ADL07:25Adelaide

$10,668

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

06:10-19:16

2 stops30h 36m

Seattle/Tacoma Intl

Mon 23/3

20:00-13:55

2 stops24h 25m

$1,951

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

12:05-20:42

2 stops26h 07m

Seattle/Tacoma Intl

Mon 23/3

14:53-13:00

2 stops28h 37m

$2,012

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

08:30-16:14

2 stops25h 14m

Seattle/Tacoma Intl

Mon 23/3

17:20-08:30

1 stop21h 40m

$2,656

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

06:10-16:14

2 stops27h 34m

Seattle/Tacoma Intl

Mon 23/3

12:36-08:30

1 stop26h 24m

$2,673

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 28/5

12:40-23:59

2 stops27h 49m

Seattle/Tacoma Intl

Thu 18/6

08:00-22:35

2 stops22h 05m

$9,152

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 28/5

06:25-21:55

2 stops32h 00m

Seattle/Tacoma Intl

Thu 18/6

08:00-22:35

2 stops22h 05m

$9,210

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 28/5

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Thu 18/6

10:15-16:20

1 stop37h 35m

$10,600

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 28/5

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Thu 18/6

10:15-07:25

1 stop28h 40m

$10,668

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 28/5

17:35-19:05

2 stops42h 00m

Seattle/Tacoma Intl

Thu 18/6

10:15-07:25

1 stop28h 40m

$10,828

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 28/5

09:10-08:25

2 stops39h 45m

Seattle/Tacoma Intl

Thu 18/6

10:15-07:25

1 stop28h 40m

$10,898

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 $1,567. 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 $2,276.

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 $1,743. 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 $2,336.

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	24h 54m
Direct flights	None

The fastest flight from South Australia to Seattle takes 24h 54m

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 $914	Free cancellation	Rating 8.0 557 reviews	Search Air New Zealand flights
Qantas Airways	PriceFrom $1,336	Free cancellation	Rating 7.5 952 reviews	Search Qantas Airways flights
Singapore Airlines	PriceFrom $1,386	Free cancellation	Rating 8.1 1,419 reviews	Search Singapore Airlines flights
Air Canada	PriceFrom $1,436	Free cancellation	Rating 7.1 10,555 reviews	Search Air Canada flights
Virgin Australia	PriceFrom $1,686	Free cancellation	Rating 7.6 429 reviews	Search Virgin Australia flights
United Airlines	PriceFrom $1,698	Free cancellation	Rating 7.4 9,114 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 $1,951

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from South Australia to Seattle departing on 19/3. 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

Singapore Airlines flights from South Australia to Seattle

Our best Singapore Airlines 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