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Cheap flights from Washington to Adelaide from $559

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Adelaide departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:05 pm - 11:15 am
PDX
-
ADL
23h 40m
2 stops
Multiple Airlines Logo
5:15 pm - 9:10 am
ADL
-
PDX
32h 25m
2 stops
$966Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
2:55 pm - 11:50 am
SEA
-
ADL
28h 25m
2 stops
Multiple Airlines Logo
5:15 pm - 2:20 pm
ADL
-
SEA
37h 35m
2 stops
$972Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
3:15 pm - 11:10 am
PDX
-
ADL
27h 25m
2 stops
Multiple Airlines Logo
5:15 pm - 9:10 am
ADL
-
PDX
32h 25m
2 stops
$1,010Multiple Airlines
Sat, Apr 18 - Tue, Apr 28
Multiple Airlines Logo
3:30 pm - 1:55 pm
PDX
-
ADL
29h 55m
2 stops
Multiple Airlines Logo
5:15 pm - 9:30 am
ADL
-
PDX
32h 45m
2 stops
$1,043Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
2:55 pm - 1:55 pm
SEA
-
ADL
30h 30m
2 stops
Multiple Airlines Logo
5:15 pm - 10:05 am
ADL
-
SEA
33h 20m
2 stops
$1,047Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
3:40 pm - 4:40 pm
SEA
-
ADL
32h 30m
2 stops
Multiple Airlines Logo
8:00 pm - 9:38 am
ADL
-
SEA
30h 08m
2 stops
$1,057Multiple Airlines
Sat, Apr 25 - Tue, Apr 28
Multiple Airlines Logo
7:20 pm - 6:10 pm
SEA
-
ADL
30h 20m
2 stops
Multiple Airlines Logo
5:15 pm - 10:05 am
ADL
-
SEA
33h 20m
2 stops
$1,065Multiple Airlines
Sat, May 9 - Sat, May 16
Multiple Airlines Logo
7:20 pm - 1:30 pm
SEA
-
ADL
25h 40m
2 stops
Multiple Airlines Logo
7:35 pm - 9:52 am
ADL
-
SEA
30h 47m
2 stops
$1,152Multiple Airlines
Mon, Jul 6 - Fri, Jul 24
Air Canada Logo
10:45 am - 3:55 pm
SEA
-
ADL
36h 40m
2 stops
Air Canada Logo
8:00 pm - 10:05 am
ADL
-
SEA
30h 35m
2 stops
$1,186Air Canada
Fri, May 8 - Tue, May 12
Air Canada Logo
3:30 pm - 11:50 am
PDX
-
ADL
27h 50m
2 stops
Air Canada Logo
4:30 pm - 2:45 pm
ADL
-
PDX
38h 45m
2 stops
$1,235Air Canada
Sat, May 23 - Wed, May 27

Air Canada flights from State of Washington to Adelaide

Our best Air Canada deals on State of Washington to Adelaide flight tickets
Air Canada
May 8
SEA10:45 amSeattle/Tacoma Intl
36h 40m
2 stops
ADL3:55 pmAdelaide
May 12
ADL8:00 pmAdelaide
30h 35m
2 stops
SEA10:05 amSeattle/Tacoma Intl
$1,186
Air Canada
May 23
PDX3:30 pmPortland
27h 50m
2 stops
ADL11:50 amAdelaide
May 27
ADL4:30 pmAdelaide
38h 45m
2 stops
PDX2:45 pmPortland
$1,235
Air Canada
May 23
PDX3:30 pmPortland
27h 50m
2 stops
ADL11:50 amAdelaide
May 27
ADL4:30 pmAdelaide
38h 45m
2 stops
PDX2:45 pmPortland
$1,236

Emirates flights from State of Washington to Adelaide

Our best Emirates deals on State of Washington to Adelaide flight tickets
Emirates
May 5
SEA5:15 pmSeattle/Tacoma Intl
34h 20m
1 stop
ADL8:05 pmAdelaide
May 12
ADL10:00 pmAdelaide
31h 55m
1 stop
SEA1:25 pmSeattle/Tacoma Intl
$2,456
Emirates
May 8
SEA5:15 pmSeattle/Tacoma Intl
34h 20m
1 stop
ADL8:05 pmAdelaide
May 12
ADL10:00 pmAdelaide
31h 55m
1 stop
SEA1:25 pmSeattle/Tacoma Intl
$2,590
Emirates
May 5
SEA11:39 amSeattle/Tacoma Intl
39h 56m
2 stops
ADL8:05 pmAdelaide
May 12
ADL10:00 pmAdelaide
31h 55m
1 stop
SEA1:25 pmSeattle/Tacoma Intl
$2,754

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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, momondo users made 832,500 searches. Data last updated March 25, 2026.
Use the filters below to find and compare flights from Washington to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 4/21

7:05 pm-11:15 am

2 stops23h 40m

Adelaide

Tue 4/28

5:15 pm-9:10 am

2 stops32h 25m

$966

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Tue 5/5

2:55 pm-11:50 am

2 stops28h 25m

Adelaide

Tue 5/12

5:15 pm-2:20 pm

2 stops37h 35m

$972

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 4/18

3:15 pm-11:10 am

2 stops27h 25m

Adelaide

Tue 4/28

5:15 pm-9:10 am

2 stops32h 25m

$1,010

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 5/7

3:30 pm-1:55 pm

2 stops29h 55m

Adelaide

Thu 5/14

5:15 pm-9:30 am

2 stops32h 45m

$1,043

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 5/7

2:55 pm-1:55 pm

2 stops30h 30m

Adelaide

Thu 5/14

5:15 pm-10:05 am

2 stops33h 20m

$1,047

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 4/25

3:40 pm-4:40 pm

2 stops32h 30m

Adelaide

Tue 4/28

8:00 pm-9:38 am

2 stops30h 08m

$1,057

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 5/9

7:20 pm-6:10 pm

2 stops30h 20m

Adelaide

Sat 5/16

5:15 pm-10:05 am

2 stops33h 20m

$1,065

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/6

7:20 pm-1:30 pm

2 stops25h 40m

Adelaide

Fri 7/24

7:35 pm-9:52 am

2 stops30h 47m

$1,152

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 5/8

10:45 am-3:55 pm

2 stops36h 40m

Adelaide

Tue 5/12

8:00 pm-10:05 am

2 stops30h 35m

$1,186

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 5/23

3:30 pm-11:50 am

2 stops27h 50m

Adelaide

Wed 5/27

4:30 pm-2:45 pm

2 stops38h 45m

$1,235

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Adelaide from

How to get the cheapest flight ticket from State of Washington to Adelaide

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on State of Washington to Adelaide flights?

You could potentially save up to 62% on your flight if you consider stops on a State of Washington to Adelaide flight.

Cheap State of Washington to Adelaide flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Adelaide

Fastest flight time

22h 19m

Direct flights

None
The fastest flight from State of Washington to Adelaide takes 22h 19m
There are no direct flights from State of Washington to Adelaide. There are no popular flight routes from State of Washington to Adelaide.
Search flight deals

  • When did momondo last update prices for flights from Washington to Adelaide Airport?

    Prices for flights from Washington to Adelaide Airport were last updated today.

  • How many operators does momondo search for flights from Washington to Adelaide Airport?

  • How old do you have to be to fly from Washington to Adelaide Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Adelaide Airport.

  • What documentation or ID do you need to fly to Adelaide Airport?

    The necessary travel and health documents for your Adelaide Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Adelaide

Compare and see reviews for airlines that fly from State of Washington to Adelaide with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $1,088Free CancellationRating
7.5
1,010 reviews
Search Qantas Airways flights

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Adelaide?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Adelaide. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Adelaide with flexible booking policies on momondo?

Yes. All flights to Adelaide from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to Adelaide?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Adelaide.

I’m not ready to book a flight from Washington to Adelaide right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to Adelaide flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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