How long is the flight from Seattle to Adelaide?

United Airlines and Air Canada can get you from Seattle to Adelaide in just under 28h 15m. Your travel time can differ by up to 16h 05m. 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.

$863+ 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 13 September 2026.

Mon 26/1019:05 -

2 stops29h 35m

Mon 2/1106:10 -

2 stops26h 57m

Deal found 11/9$1,514

Wed 21/1019:15 -

2 stops25h 35m

Sun 25/1006:10 -

2 stops25h 57m

Deal found 13/9$1,630

Sat 24/1019:15 -

2 stops23h 50m

Sat 31/1006:10 -

2 stops29h 42m

Deal found 9/9$1,736

Sat 24/1009:05 -

3 stops32h 20m

Sat 31/1006:10 -

2 stops30h 06m

Deal found 9/9$1,927

Wed 16/911:45 -

2 stops53h 10m

Sun 11/1007:50 -

2 stops43h 45m

Deal found 11/9$1,974

Sat 31/1008:40 -

2 stops44h 20m

Wed 4/1106:10 -

2 stops21h 52m

Deal found 9/9$2,002

Wed 23/1215:24 -

2 stops30h 26m

Wed 6/114:55 -

2 stops37h 34m

Deal found 10/9$2,090

Fri 11/1207:00 -

2 stops33h 25m

Fri 25/1207:15 -

2 stops30h 47m

Deal found 9/9$2,179

Wed 16/916:25 -

1 stop30h 05m

Sun 11/1020:00 -

2 stops40h 14m

Deal found 11/9$2,202

Fri 11/1215:50 -

1 stop30h 45m

Fri 25/1217:50 -

2 stops36h 20m

Deal found 9/9$2,207

Tue 29/1215:24 -

2 stops25h 01m

Wed 6/107:50 -

2 stops26h 28m

Deal found 10/9$2,243

Find flight deals from Seattle to Adelaide

Round-trip from	$1,514
One-way from	$863

Air Canada
26/10-2/11
4 total stops
56h 32m total
Seattle to Adelaide

Search Deals

26/10-31/12
2 total stops
56h 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

Mon 26/10

20:00-22:15

2 stops56h 45m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$863

Fastest return journey

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Mon 12/10

18:43-11:05

2 stops22h 52m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$922

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Sun 27/9

21:45-08:40

3 stops42h 25m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$1,149

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Tue 12/1

15:50-11:00

2 stops24h 40m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$1,163

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Thu 1/10

16:59-22:00

2 stops36h 31m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$1,180

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Tue 12/1

15:50-17:05

1 stop30h 45m

Adelaide

Wed 31/12

00:00-06:30

Nonstop0h 00m

$1,424

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Tue 27/10

19:05-14:05

2 stops25h 30m

Adelaide

Tue 3/11

06:10-18:22

2 stops30h 42m

$1,630

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Fri 12/2

19:05-21:45

2 stops32h 10m

Adelaide

Sun 21/2

06:10-09:32

2 stops21h 52m

$1,679

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Thu 28/1

10:45-09:30

1 stop28h 15m

Adelaide

Sun 7/2

19:55-11:40

2 stops34h 15m

$1,822

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Sat 24/10

09:05-10:55

3 stops32h 20m

Adelaide

Sat 31/10

06:10-18:46

2 stops30h 06m

$1,927

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 16 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 and Air Canada can get you from Seattle to Adelaide in just under 28h 15m. Your travel time can differ by up to 16h 05m. 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.

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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.

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Cheap flights from Seattle to Adelaide from $863

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/10. 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 13 September 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 13 September 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 13 September 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 13 September 2026.

Last-minute flights from Seattle to AdelaideDiscover last-minute flight deals from Seattle to Adelaide. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Adelaide. Data last updated 13 September 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 13 September 2026.

Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

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Best time to book a flight from Seattle to Adelaide

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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

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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 13 September 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 13 September 2026.

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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?

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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 13 September 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 13 September 2026.

Last-minute flights from Seattle to Adelaide
Discover last-minute flight deals from Seattle to Adelaide. Data last updated 13 September 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 13 September 2026.