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).

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

Two cabin classes are available on flights from Seattle to Adelaide: • Economy Class • Business Class

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

Yes. Being flexible with your travel dates can save you up to 39% on the Seattle to Adelaide route. Thursday is the cheapest departure day at $1,116 round-trip on average, while Sunday is the most expensive at $1,812, a difference of $696. KAYAK's flexible dates feature shows options up to 3 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 Oval and Adelaide Festival Centre. These are among the most viewed places in Adelaide on KAYAK.

How long is a flight from Seattle to Adelaide?

A nonstop flight from Seattle to Adelaide takes 0h 00m, covering 8,332 miles.

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.

Have flight prices from Seattle to Adelaide changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,217 to $3,274. That means the highest observed fare was about 3x higher than the lowest one.

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 $14,529, which is 1,990% above the typical average for this route.

What is the time difference between Seattle and Adelaide?

Adelaide is 16 hours ahead of Seattle (Central Australia Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Adelaide Airport (ADL)?

Adelaide Airport (ADL) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include: • Bargain Car Rentals • Simba Car Hire • East Coast Car Rentals • Europcar • Budget

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

Round-trip flights from Seattle to Adelaide range from $1,116 to $1,426, with an average of $1,236 over the past 12 months. Anything below $1,116 counts as a good deal.

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

Air Canada ($1,208) and Air New Zealand ($1,297) are the cheapest airlines to fly round-trip from Seattle to Adelaide according to KAYAK data over the last 5 days.

$1,168 CHEAP FLIGHTS from Seattle to Adelaide (SEA - ADL)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$1,168

Typical prices: $1,116-$1,426

Multiple Airlines

Fri 11/2Fri 11/9

SEA - ADL • 2 stops

Cheapest one-way

$14,209

Typical prices: $649-$703

Multiple Airlines

Sun 10/21

SEA - ADL • 3 stops

Nonstop 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 • 10% price drop

March

Most popular

Good to know

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We hope you love 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.

Round-trip

One-way

Recent round-trip flight deals from Seattle to Adelaide

Mon, Nov 2 - Mon, Nov 9

7:05 pm - 2:05 pmSEA Seattle/Tacoma Intl-ADL Adelaide

24h 30m2 stops Vancouver Intl Sydney Kingsford Smith

6:10 am - 6:22 pmADL Adelaide-SEA Seattle/Tacoma Intl

30h 42m2 stops Brisbane Vancouver Intl

$1,168Multiple Airlines

Fri, Feb 12 - Sun, Feb 21

7:05 pm - 9:45 pmSEA Seattle/Tacoma Intl-ADL Adelaide

32h 10m2 stops Vancouver Intl Brisbane

6:10 am - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,202Multiple Airlines

Sun, Feb 14 - Sat, Feb 20

7:05 pm - 7:10 pmSEA Seattle/Tacoma Intl-ADL Adelaide

29h 35m2 stops Vancouver Intl Sydney Kingsford Smith

6:10 am - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,208Air Canada

Fri, Feb 12 - Sun, Feb 21

7:05 pm - 9:45 pmSEA Seattle/Tacoma Intl-ADL Adelaide

32h 10m2 stops Vancouver Intl Brisbane

6:10 am - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,217Multiple Airlines

Sun, Feb 14 - Sat, Feb 20

7:05 pm - 7:10 pmSEA Seattle/Tacoma Intl-ADL Adelaide

29h 35m2 stops Vancouver Intl Sydney Kingsford Smith

6:10 am - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,223Air Canada

Tue, Nov 3 - Tue, Nov 10

7:05 pm - 2:05 pmSEA Seattle/Tacoma Intl-ADL Adelaide

24h 30m2 stops Vancouver Intl Sydney Kingsford Smith

6:10 am - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,233Multiple Airlines

Sun, Feb 14 - Sat, Feb 20

3:15 pm - 1:55 pmSEA Seattle/Tacoma Intl-ADL Adelaide

28h 10m2 stops Vancouver Intl Sydney Kingsford Smith

2:30 pm - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

37h 32m2 stops Sydney Kingsford Smith Vancouver Intl

$1,240Air Canada

Sun, Feb 14 - Sat, Feb 20

3:15 pm - 1:55 pmSEA Seattle/Tacoma Intl-ADL Adelaide

28h 10m2 stops Vancouver Intl Sydney Kingsford Smith

2:30 pm - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

37h 32m2 stops Sydney Kingsford Smith Vancouver Intl

$1,241Air Canada

Fri, Feb 12 - Sun, Feb 21

7:05 pm - 9:45 pmSEA Seattle/Tacoma Intl-ADL Adelaide

32h 10m2 stops Vancouver Intl Brisbane

6:10 am - 9:32 amADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

$1,267Multiple Airlines

Thu, Nov 5 - Thu, Nov 12

7:59 pm - 10:55 amSEA Seattle/Tacoma Intl-ADL Adelaide

44h 26m2 stops Los Angeles Auckland Intl

12:05 pm - 5:21 pmADL Adelaide-SEA Seattle/Tacoma Intl

23h 46m2 stops Auckland Intl San Francisco

$1,297Air New Zealand

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 from Seattle to Adelaide with more confidence.

Prices

Airlines

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

Thursday is the cheapest day of the week to fly from Seattle to Adelaide, it is 10% cheaper than the average day. Sunday is the most expensive day with flight prices 46% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Low season	October
High season	March
Cheapest flight	$1,168

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly and prices are also 10% lower on average.

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 round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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.

What cabin classes can I book on flights from Seattle to Adelaide?
Two cabin classes are available on flights from Seattle to Adelaide:

• Economy Class
• Business Class
How long is a flight from Seattle to Adelaide?
A nonstop flight from Seattle to Adelaide takes 0h 00m, covering 8,332 miles.
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?
Round-trip flights from Seattle to Adelaide range from $1,116 to $1,426, with an average of $1,236 over the past 12 months. Anything below $1,116 counts as a good deal.
Have flight prices from Seattle to Adelaide changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,217 to $3,274. That means the highest observed fare was about 3x higher than the lowest one.
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 $14,529, which is 1,990% above the typical average for this route.
What car rental options are available at Adelaide Airport (ADL)?
Adelaide Airport (ADL) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:
• Bargain Car Rentals
• Simba Car Hire
• East Coast Car Rentals
• Europcar
• Budget
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. Being flexible with your travel dates can save you up to 39% on the Seattle to Adelaide route. Thursday is the cheapest departure day at $1,116 round-trip on average, while Sunday is the most expensive at $1,812, a difference of $696. KAYAK's flexible dates feature shows options up to 3 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 16 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 Oval and Adelaide Festival Centre. These are among the most viewed places in Adelaide on KAYAK.

If your dates can be flexible, aim for a Thursday departure instead of Sunday. On this route, Thursday flights average $1,116 - about $696 less than Sunday (38% 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 $1,109 round-trip in that month - typically $541 less than the most expensive month, which is November (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

$1,168 Find Cheap Flights from Seattle to Adelaide - Compare and Save

Everything you should know

Cheap Flights from Seattle to Adelaide (SEA-ADL)

Recent round-trip 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

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

What is the cheapest airline 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 rental

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

Flights to other popular destinations