Which airports can I use when flying from Seattle to Adelaide?

Flights from Seattle to Adelaide usually depart from Seattle/Tacoma Intl (SEA) and arrive at Adelaide (ADL).

Which cabin classes can I book on flights from Seattle to Adelaide?

Only Economy class is available on flights from Seattle to Adelaide.

Can I save money by using flexible dates for flights from Seattle to Adelaide?

Yes. Flexible dates can save you up to 31% on flights from Seattle to Adelaide. Thursday is the cheapest departure day at $1,599 return on average, while Sunday is the most expensive at $2,310, a difference of $711. KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Adelaide?

Some of the most popular sights in Adelaide are Adelaide Convention Centre, Adelaide Casino, and Victoria Park. These are among the most viewed places in Adelaide on KAYAK.

How long is a flight from Seattle to Adelaide?

A direct flight from Seattle to Adelaide takes 00m, covering 21,580 km.

Do I need a passport to fly from Seattle to Adelaide?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from Seattle to Adelaide looking right now?

One-way fares from Seattle to Adelaide are currently higher than usual. Average one-way flight prices are about $1,754, which is 79% above the typical average for this route.

What is the time difference between Seattle and Adelaide?

Adelaide is 17 hours ahead of Seattle (Central Australia Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Which car hire options are available at Adelaide Airport (ADL)?

Adelaide Airport (ADL) hosts 5 major car hire companies, with daily rates starting from around $16 for economy cars. Top options include: • Bargain Car Rentals • Simba Car Hire • East Coast Car Rentals • Europcar • Thrifty

How much should I expect to pay for a Seattle to Adelaide flight?

Return flights from Seattle to Adelaide range from $1,616 to $1,896, with an average of $1,744 over the past 12 months. Anything below $1,616 counts as a good deal.

How much is a return flight from Seattle to Adelaide?

Return flights from Seattle to Adelaide typically range from $1,616 to $1,896. The lowest price found in the past 5 days was $1,845 on United Airlines.

What's the cheapest day of the week to fly from Seattle to Adelaide?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Seattle to Adelaide. It’s 9% cheaper than the average day, while Sunday is the most expensive, with prices 32% higher.

Which airline is the cheapest to fly from Seattle to Adelaide?

United Airlines ($1,845) and Air Canada ($1,875) are the cheapest airlines to fly return from Seattle to Adelaide according to KAYAK data over the last 5 days.

$1,536 CHEAP FLIGHTS from Seattle to Adelaide (SEA - ADL)

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Cheapest return flight

$1,845

Typical prices: $1,616-$1,896

United Airlines

Sat 24/11Sat 1/12

SEA - ADL • 2 stops

Cheapest one-way flight

$1,536

Typical prices: $913-$1,059

Qantas Airways

Sat 15/12

SEA - ADL • 2 stops

Direct flights

Not available

There are currently no direct flights between Seattle and Adelaide. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

March

Cheapest • 18% price drop

March

Most popular

Good to know

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We hope you enjoy your trip to Adelaide!

Flight Deals

Cheap Flights from Seattle to Adelaide (SEA-ADL)

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Recent return flight deals from Seattle to Adelaide

Tue, 24 Nov - Tue, 1 Dec

20:18 - 14:10SEA Seattle/Tacoma Intl-ADL Adelaide

23h 22m2 stops San Francisco Melbourne

19:55 - 16:22ADL Adelaide-SEA Seattle/Tacoma Intl

38h 57m2 stops Sydney Kingsford Smith San Francisco

$1,845United Airlines

Thu, 5 Nov - Thu, 12 Nov

07:00 - 11:00SEA Seattle/Tacoma Intl-ADL Adelaide

33h 30m2 stops Honolulu Sydney Kingsford Smith

13:25 - 21:25ADL Adelaide-SEA Seattle/Tacoma Intl

26h 30m2 stops Sydney Kingsford Smith Honolulu

$1,865Multiple Airlines

Fri, 12 Feb - Sun, 21 Feb

19:05 - 21:45SEA Seattle/Tacoma Intl-ADL Adelaide

32h 10m2 stops Vancouver Intl Brisbane

06:10 - 09:32ADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,868Multiple Airlines

Thu, 22 Oct - Sun, 25 Oct

07:00 - 22:35SEA Seattle/Tacoma Intl-ADL Adelaide

22h 05m2 stops Honolulu Sydney Kingsford Smith

07:45 - 22:52ADL Adelaide-SEA Seattle/Tacoma Intl

32h 37m2 stops Sydney Kingsford Smith Honolulu

$1,874Multiple Airlines

Sun, 14 Feb - Sat, 20 Feb

19:05 - 19:10SEA Seattle/Tacoma Intl-ADL Adelaide

29h 35m2 stops Vancouver Intl Sydney Kingsford Smith

06:10 - 09:32ADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,875Air Canada

Fri, 12 Feb - Sun, 21 Feb

15:15 - 13:55SEA Seattle/Tacoma Intl-ADL Adelaide

28h 10m2 stops Vancouver Intl Sydney Kingsford Smith

06:10 - 18:22ADL Adelaide-SEA Seattle/Tacoma Intl

30h 42m2 stops Brisbane Vancouver Intl

$1,877Air Canada

Sun, 14 Feb - Sat, 20 Feb

19:05 - 19:10SEA Seattle/Tacoma Intl-ADL Adelaide

29h 35m2 stops Vancouver Intl Sydney Kingsford Smith

06:10 - 09:32ADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,877Air Canada

Mon, 16 Nov - Fri, 27 Nov

15:15 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

25h 10m2 stops Vancouver Intl Auckland Intl

12:05 - 18:22ADL Adelaide-SEA Seattle/Tacoma Intl

24h 47m2 stops Auckland Intl Vancouver Intl

$1,881Air New Zealand

Sat, 19 Dec - Sat, 9 Jan

05:00 - 09:30SEA Seattle/Tacoma Intl-ADL Adelaide

34h 00m1 stop San Francisco

14:55 - 16:38ADL Adelaide-SEA Seattle/Tacoma Intl

20h 13m1 stop San Francisco

$3,235United Airlines

Sat, 19 Dec - Sat, 9 Jan

05:00 - 09:30SEA Seattle/Tacoma Intl-ADL Adelaide

34h 00m1 stop San Francisco

14:55 - 13:13ADL Adelaide-SEA Seattle/Tacoma Intl

40h 48m2 stops San Francisco Houston George Bush Intcntl

$3,241United Airlines

Booking Insights

Price, demand, and travel trends for Seattle to Adelaide flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a return flight from Seattle to Adelaide? This analysis is based on the cheapest return price found on KAYAK in the last 12 months by searching for a flight from Seattle to Adelaide departing in November.
What's the cheapest day of the week to fly from Seattle to Adelaide?: Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Seattle to Adelaide. It’s 9% cheaper than the average day, while Sunday is the most expensive, with prices 32% higher.

Find deals

Low season	October
High season	March
Cheapest flight	$1,536

Beat the crowds with an average 42% drop in traveller numbers.

One-way flight from Seattle to Adelaide

When to book flights from Seattle to Adelaide

Are your dates flexible? Find out the best times to travel from Seattle to Adelaide based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which cabin classes can I book on flights from Seattle to Adelaide?
Only Economy class is available on flights from Seattle to Adelaide.
How long is a flight from Seattle to Adelaide?
A direct flight from Seattle to Adelaide takes 00m, covering 21,580 km.
Do I need a passport to fly from Seattle to Adelaide?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Seattle to Adelaide flight?
Return flights from Seattle to Adelaide range from $1,616 to $1,896, with an average of $1,744 over the past 12 months. Anything below $1,616 counts as a good deal.
How are flight prices from Seattle to Adelaide looking right now?
One-way fares from Seattle to Adelaide are currently higher than usual. Average one-way flight prices are about $1,754, which is 79% above the typical average for this route.
Which car hire options are available at Adelaide Airport (ADL)?
Adelaide Airport (ADL) hosts 5 major car hire companies, with daily rates starting from around $16 for economy cars. Top options include:

• Bargain Car Rentals
• Simba Car Hire
• East Coast Car Rentals
• Europcar
• Thrifty
Which airports can I use when flying from Seattle to Adelaide?
Flights from Seattle to Adelaide usually depart from Seattle/Tacoma Intl (SEA) and arrive at Adelaide (ADL).
Can I save money by using flexible dates for flights from Seattle to Adelaide?
Yes. Flexible dates can save you up to 31% on flights from Seattle to Adelaide. Thursday is the cheapest departure day at $1,599 return on average, while Sunday is the most expensive at $2,310, a difference of $711.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Seattle and Adelaide?
Adelaide is 17 hours ahead of Seattle (Central Australia Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Adelaide?
Some of the most popular sights in Adelaide are Adelaide Convention Centre, Adelaide Casino, and Victoria Park. These are among the most viewed places in Adelaide on KAYAK.

If your dates are flexible, aim for a Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $1,599, about $711 less than Sunday fares (31% savings) based on the last 12 months.
If you can choose when to travel, plan your Seattle to Adelaide trip for March. Fares historically average $1,423 return in that month – typically $2,116 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Adelaide Airport.

• Atura Adelaide Airport
• Lockleys Hotel

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SEA - ADL

$1,536 Find Cheap Flights from Seattle to Adelaide – Compare and Save

Everything you should know

Cheap Flights from Seattle to Adelaide (SEA-ADL)

Recent return flight deals from Seattle to Adelaide

Recent one-way flight deals from Seattle to Adelaide

Price, demand, and travel trends for Seattle to Adelaide flights

How much is a return flight from Seattle to Adelaide?

What's the cheapest day of the week to fly from Seattle to Adelaide?

Which airline is the cheapest to fly from Seattle to Adelaide?

Key details for Seattle to Adelaide flights

Low season

High season

Cheapest flight

When to book flights from Seattle to Adelaide

Your Seattle to Adelaide flight questions, answered

Your guide to booking Seattle to Adelaide flights

More options for your flight from Seattle to Adelaide

Complete your trip to Adelaide with a hotel stay or car hire

Information on your arrival and departure airports

Cabin class types available on flights from Seattle to Adelaide

Find direct flights to and from Seattle and Adelaide

Flights from domestic origins to Adelaide

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