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Cheap flights from Seattle to Adelaide from $1,002

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
26 Feb — 5 Mar1
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 21 February 2025.

Round-trip from

$1,946

One-way from

$1,002

Popular in

January

Cheapest in

August

Average price

$2,436
United Airlines
  • United Airlines
  • 16/3-22/3
  • 5 total stops
  • 60h 05m total
  • Seattle to Adelaide
Search Deals
Air Canada
  • Air Canada
  • 7/4
  • 2 total stops
  • 24h 15m total
  • Seattle to Adelaide
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($724 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($146 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 21 February 2025.

Sun 16/314:50SEA - ADL
2 stops27h 30mUnited Airlines
Sat 22/306:10ADL - SEA
3 stops32h 35mUnited Airlines
Deal found 20/2$1,946
Thu 3/418:40SEA - ADL
2 stops33h 50mMultiple Airlines
Thu 10/406:25ADL - SEA
2 stops40h 06mMultiple Airlines
Deal found 20/2$2,256
Sun 16/317:05SEA - ADL
1 stop30h 30mQatar Airways
Sat 22/313:20ADL - SEA
2 stops40h 50mQatar Airways
Deal found 20/2$2,529
Wed 2/412:55SEA - ADL
2 stops28h 30mAir New Zealand
Sun 13/411:55ADL - SEA
2 stops23h 03mAir New Zealand
Deal found 19/2$2,744
Fri 26/1208:45SEA - ADL
1 stop38h 05mSingapore Airlines
Mon 5/118:35ADL - SEA
1 stop31h 05mSingapore Airlines
Deal found 20/2$3,550
Mon 7/417:15SEA - ADL
1 stop34h 20mEmirates
Mon 14/421:50ADL - SEA
1 stop32h 05mEmirates
Deal found 21/2$3,844
Mon 7/406:00SEA - ADL
3 stops37h 20mAir Canada
Mon 14/419:00ADL - SEA
2 stops31h 23mAir Canada
Deal found 21/2$4,512
Mon 7/415:40SEA - ADL
3 stops26h 10mAlaska Airlines
Mon 14/412:55ADL - SEA
3 stops26h 58mAlaska Airlines
Deal found 21/2$6,271

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 21 February 2025.

Fly from

Seattle

Fly to

Adelaide

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 16/3

14:50-11:50

2 stops27h 30m

Adelaide

Sat 22/3

06:10-21:15

3 stops32h 35m

$1,946

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 3/4

18:40-22:00

2 stops33h 50m

Adelaide

Thu 10/4

06:25-06:01

2 stops40h 06m

$2,256

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 16/3

17:05-17:05

1 stop30h 30m

Adelaide

Sat 22/3

13:20-12:40

2 stops40h 50m

$2,529

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 2/4

12:55-10:55

2 stops28h 30m

Adelaide

Sun 13/4

11:55-18:28

2 stops23h 03m

$2,744

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

17:15-20:05

1 stop34h 20m

Adelaide

Mon 14/4

21:50-13:25

1 stop32h 05m

$3,844

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

06:00-11:50

3 stops37h 20m

Adelaide

Mon 14/4

19:00-09:53

2 stops31h 23m

$4,512

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

15:40-10:20

3 stops26h 10m

Adelaide

Mon 14/4

12:55-23:23

3 stops26h 58m

$6,271

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

19:05-11:50

2 stops24h 15m

$1,002

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 30/4

18:25-18:25

3 stops31h 30m

$1,631

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

10:30-12:05

3 stops33h 05m

$2,109

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 13 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 21 February 2025.
Emirates
8.1
Very Good
3,276 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Emirates
8.1
Very Good
3,276 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Alaska Airlines
8.0
Very Good
9,697 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Air New Zealand
7.9
Good
460 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Qatar Airways
7.4
Good
3,609 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

United Airlines
7.4
Good
8,765 reviews
Emirates
8.1
Very Good
3,276 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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 United Airlines. Our recent data shows that you can find tickets from as low as $1,946 on this airline. Additional options worth looking into are Qatar Airways and Air New Zealand, starting at $2,529 and $2,744 round-trip. United Airlines is 18% 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 Air Canada. According to our data, you can fly for as low as $1,002. Users have also found prices from $2,109 and $2,135 on Air New Zealand 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

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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.

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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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