How long is the flight from Seattle to Adelaide?

United Airlines, Cathay Pacific, and Qatar Airways can get you from Seattle to Adelaide in just under 29h 57m. Your travel time can differ by up to 4h 41m. There are 13409 km between Seattle and Adelaide. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Adelaide ranges from 10.0 - 60.0 inches per month. July is typically the wettest month, when rainfall can reach 60.0 mm. January is typically the driest time to visit Adelaide when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Adelaide, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from SEA to ADL?

When flying from Seattle to Adelaide, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Seattle to Adelaide that include hotel bookings?

Yes. In addition to deals on Seattle to Adelaide flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Seattle to Adelaide?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Adelaide.

Can I find deals for business class flights from Seattle to Adelaide?

Yes. Cheapflights offers flight deals from Seattle to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$914+ Cheap Flights from Seattle to Adelaide

Cheap flight deals from Seattle to Adelaide

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Seattle to Adelaide
Explore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Thu 26/1115:46 -

2 stops25h 59m

Thu 3/1213:15 -

2 stops23h 10m

Deal found 29/10$1,756

Tue 10/1110:10 -

2 stops31h 35m

Tue 17/1107:45 -

3 stops29h 18m

Deal found 26/10$1,816

Sat 31/1017:23 -

2 stops26h 07m

Wed 4/1119:55 -

2 stops42h 12m

Deal found 25/10$1,877

Thu 10/1215:20 -

2 stops28h 20m

Thu 17/1206:10 -

2 stops30h 49m

Deal found 26/10$2,366

Sat 31/1011:25 -

2 stops36h 50m

Wed 4/1106:05 -

2 stops45h 10m

Deal found 26/10$2,429

Sat 31/1017:44 -

2 stops31h 46m

Wed 4/1114:15 -

2 stops27h 57m

Deal found 29/10$2,746

Find flight deals from Seattle to Adelaide

Round-trip from	$1,557
One-way from	$914

Air Canada
12/2-21/2
4 total stops
46h 32m total
Seattle to Adelaide

Search Deals

2/3-31/12
2 total stops
34h 45m total
Seattle to Adelaide

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Tue 2/3

08:40-13:55

2 stops34h 45m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$914

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Thu 26/11

16:50-12:15

2 stops24h 55m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$934

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Tue 2/3

08:40-17:20

1 stop38h 10m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$1,340

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Wed 24/2

08:47-13:55

2 stops34h 38m

Adelaide

Tue 16/3

06:10-19:03

3 stops30h 23m

$1,971

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Fri 12/2

10:03-10:30

2 stops29h 57m

Adelaide

Sun 21/2

12:00-08:45

1 stop39h 15m

$2,041

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Fri 12/2

15:50-17:05

1 stop30h 45m

Adelaide

Sun 21/2

22:00-11:40

1 stop32h 10m

$2,191

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Sun 14/2

15:50-20:40

2 stops34h 20m

Adelaide

Sat 20/2

22:00-11:40

1 stop32h 10m

$2,247

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Thu 10/12

15:20-14:10

2 stops28h 20m

Adelaide

Thu 17/12

06:10-18:29

2 stops30h 49m

$2,366

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Thu 26/11

16:05-20:50

1 stop34h 15m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$2,553

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Fri 12/2

16:45-07:05

3 stops43h 50m

Adelaide

Sun 21/2

12:00-08:51

2 stops39h 21m

$2,609

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 15 resultsSorted by cheapest first

Best time to book a flight from Seattle to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Seattle with our price prediction graph.

SEA-ADL

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Seattle to Adelaide?
United Airlines, Cathay Pacific, and Qatar Airways can get you from Seattle to Adelaide in just under 29h 57m. Your travel time can differ by up to 4h 41m. There are 13409 km between Seattle and Adelaide. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Seattle to Adelaide that include hotel bookings?
Yes. In addition to deals on Seattle to Adelaide flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Seattle to Adelaide?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Adelaide.
Can I find deals for business class flights from Seattle to Adelaide?
Yes. Cheapflights offers flight deals from Seattle to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Glenelg

Browse thousands of different options on Cheapflights for your next trip

Adelaide flight routes

Complete your trip

Direct flights to South Australia

Flights by cabin class

Other flight options

Popular flights

Other flights to Adelaide

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to Adelaide?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Adelaide from Seattle today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Seattle to Adelaide?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Adelaide.

Can Cheapflights find flights from Seattle to Adelaide with no change fees?

Yes, we can. To see specific flights from Seattle to Adelaide with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Adelaide become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Adelaide flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Seattle to Adelaide from $914

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Adelaide

Cheapest flights from Seattle to AdelaideExplore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Seattle to AdelaideDiscover carefully curated flight deals from Seattle to Adelaide that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Seattle to Adelaide that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Seattle to AdelaideDiscover last-minute flight deals from Seattle to Adelaide. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Adelaide. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Seattle to AdelaideSearch for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Seattle to Adelaide

Round-trip from

One-way from

Cheapflights Fare Finder

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

Best time to book a flight from Seattle to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Seattle with our price prediction graph.

Related info for your journey

How long is the flight from Seattle to Adelaide?

Can I find deals for flights from Seattle to Adelaide that include hotel bookings?

How can I find direct flights from Seattle to Adelaide?

Can I find deals for business class flights from Seattle to Adelaide?

Travelling to a place near Adelaide?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other flights to Adelaide

Explore flights to Adelaide departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

Complete your trip

Complete your trip to Adelaide by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to South Australia

Book a non-stop flight to one of these other cities located in South Australia.

Search flights from Seattle to Adelaide by cabin class

Find flights from Seattle to Adelaide, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Seattle and Adelaide flights

Browse other Seattle and Adelaide flight options. Last updated on 30 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to Adelaide?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Adelaide?

Can Cheapflights find flights from Seattle to Adelaide with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Adelaide become cheaper?

100% Free

Book with flexibility

Travel Smart

Cheapest flights from Seattle to Adelaide
Explore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Seattle to Adelaide
Discover carefully curated flight deals from Seattle to Adelaide that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Seattle to Adelaide
Discover last-minute flight deals from Seattle to Adelaide. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Seattle to Adelaide
Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.