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Cheap flights from Seattle to Adelaide from $979

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
25 Jan — 1 Feb1
1 adult

Cheap flight deals from Seattle to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 January 2025.

Round-trip from

$1,652

One-way from

$979

Popular in

January

Cheapest in

August

Average price

$3,479
4/3-11/3
  • 4/3-11/3
  • 6 total stops
  • 66h 47m total
  • Seattle to Adelaide
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9/5
  • 9/5
  • 2 total stops
  • 45h 49m total
  • Seattle to Adelaide
Search Deals
High demand for flights, 16% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Seattle to Adelaide

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 20 January 2025.

Tue 4/305:15SEA - ADL
3 stops36h 30mMultiple Airlines
Tue 11/306:15ADL - SEA
3 stops30h 17mMultiple Airlines
Deal found 19/1$1,652
Sun 16/319:05SEA - ADL
2 stops30h 35mAir Canada
Sat 22/318:50ADL - SEA
2 stops41h 05mAir Canada
Deal found 19/1$2,026
Tue 9/916:40SEA - ADL
2 stops52h 45mANA
Tue 23/916:30ADL - SEA
2 stops38h 25mANA
Deal found 20/1$2,233
Thu 11/919:00SEA - ADL
2 stops24h 05mFiji Airways
Thu 25/912:35ADL - SEA
2 stops23h 57mFiji Airways
Deal found 20/1$2,401
Wed 10/914:55SEA - ADL
2 stops27h 30mAir New Zealand
Wed 24/906:00ADL - SEA
2 stops23h 45mAir New Zealand
Deal found 20/1$2,403
Tue 18/216:05SEA - ADL
1 stop30h 30mQatar Airways
Tue 25/213:20ADL - SEA
2 stops40h 50mQatar Airways
Deal found 19/1$2,416
Thu 11/912:59SEA - ADL
2 stops29h 36mUnited Airlines
Sun 21/906:05ADL - SEA
2 stops25h 30mUnited Airlines
Deal found 20/1$2,535
Tue 19/810:15SEA - ADL
1 stop28h 40mSingapore Airlines
Thu 28/809:10ADL - SEA
1 stop40h 05mSingapore Airlines
Deal found 18/1$2,652
Sat 13/914:35SEA - ADL
3 stops27h 15mAlaska Airlines
Tue 23/906:00ADL - SEA
3 stops27h 51mAlaska Airlines
Deal found 19/1$3,337

Find flights from Seattle to Adelaide within your budget

Customise your flight search to find flights from Seattle to Adelaide that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 20 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Tue 4/3

05:15-12:15

3 stops36h 30m

Adelaide

Tue 11/3

06:15-19:02

3 stops30h 17m

$1,652

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 16/3

19:05-19:10

2 stops30h 35m

Adelaide

Sat 22/3

18:50-18:25

2 stops41h 05m

$2,026

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 18/6

17:14-11:35

2 stops25h 51m

Adelaide

Mon 7/7

11:55-18:36

2 stops23h 11m

$2,414

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Tue 18/2

16:05-06:35

2 stops44h 00m

Adelaide

Tue 25/2

18:20-11:40

2 stops35h 50m

$2,416

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 10/3

15:01-14:10

2 stops29h 39m

Adelaide

Mon 24/3

06:10-21:15

3 stops32h 35m

$2,535

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 16/3

09:40-08:45

1 stop29h 35m

Adelaide

Sat 22/3

10:10-08:10

1 stop39h 30m

$3,346

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 3/3

10:35-19:10

3 stops38h 05m

Adelaide

Mon 10/3

06:00-18:25

3 stops29h 55m

$3,468

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 6/3

16:05-20:50

1 stop34h 15m

Adelaide

Thu 13/3

22:40-13:35

1 stop32h 25m

$3,733

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 19/6

09:50-11:35

3 stops33h 15m

Adelaide

Sat 5/7

12:35-20:02

2 stops23h 57m

$4,870

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 9/5

21:16-11:35

2 stops45h 49m

$979

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 14 results
1
2

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.
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.

Travel insights for flights from Seattle to Adelaide

Get recent, data-driven insights about flights from Seattle to Adelaide including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seattle to Adelaide?

Currently, June is the cheapest month in which you can book a flight from Seattle to Adelaide (average of $168). Flying from Seattle to Adelaide in October is currently the most expensive (average of $241). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Adelaide by month

Plan your trip to Adelaide by taking into account the average rainfall totals by month.

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.

Temperature in Adelaide by month

Plan your trip to Adelaide by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Adelaide. Reviews last updated 20 January 2025.
ANA
8.4
Very Good
852 reviews
Check prices

Comfort

8.2

Entertainment

7.9

Boarding

8.6

Food

7.7

Crew

8.7

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

ANA
8.4
Very Good
852 reviews
ANA
8.4
Very Good
852 reviews
Check prices

Comfort

8.2

Entertainment

7.9

Boarding

8.6

Food

7.7

Crew

8.7

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Emirates
8.1
Very Good
3,356 reviews
ANA
8.4
Very Good
852 reviews
Check prices

Comfort

8.2

Entertainment

7.9

Boarding

8.6

Food

7.7

Crew

8.7

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Singapore Airlines
8.1
Very Good
1,328 reviews
ANA
8.4
Very Good
852 reviews
Check prices

Comfort

8.2

Entertainment

7.9

Boarding

8.6

Food

7.7

Crew

8.7

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Fiji Airways
8.1
Very Good
188 reviews
ANA
8.4
Very Good
852 reviews
Check prices

Comfort

8.2

Entertainment

7.9

Boarding

8.6

Food

7.7

Crew

8.7

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Air New Zealand
7.9
Good
485 reviews
ANA
8.4
Very Good
852 reviews
Check prices

Comfort

8.2

Entertainment

7.9

Boarding

8.6

Food

7.7

Crew

8.7

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Related info for your journey

Find useful and relevant information for your journey from Seattle to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Adelaide round-trip?

    Our cheapest airline available from Seattle to Adelaide is Air Canada. Our recent data shows that you can find tickets from as low as $2,026 on this airline. Additional options worth looking into are Air New Zealand and Qatar Airways, starting at $2,414 and $2,416 round-trip. Air Canada is 16% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to Adelaide one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $1,364. Users have also found prices from $2,180 and $2,202 on Singapore Airlines and Qatar Airways, respectively.

  • 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.

  • What is the cheapest month to book a flight from Seattle to Adelaide?

    Currently, June is the cheapest month in which you can book a flight from Seattle to Adelaide (average of $168). Flying from Seattle to Adelaide in October is currently the most expensive (average of $241). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

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Glenelg
Stirling

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Fly with Cheapflights

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

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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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