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Cheap flights from Washington to Sydney from $579

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 Sydney departing on 26/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:45 - 06:10GEG-SYD
20h 25m1 stop
Multiple Airlines Logo
17:45 - 22:38SYD-GEG
22h 53m1 stop
$1,319Multiple Airlines
Find Deal
Tue, 10 Mar - Tue, 24 Mar
American Airlines Logo
15:45 - 09:00GEG-SYD
23h 15m2 stops
American Airlines Logo
17:45 - 23:01SYD-GEG
23h 16m2 stops
$1,325American Airlines
Find Deal
Tue, 10 Mar - Tue, 24 Mar
Multiple Airlines Logo
06:40 - 07:05GEG-SYD
31h 25m1 stop
Multiple Airlines Logo
17:45 - 22:38SYD-GEG
21h 53m1 stop
$1,347Multiple Airlines
Find Deal
Tue, 21 Apr - Wed, 6 May
Delta Logo
13:30 - 06:35GEG-SYD
24h 05m2 stops
Delta Logo
09:25 - 16:58SYD-GEG
24h 33m2 stops
$1,350Delta
Find Deal
Wed, 6 May - Sun, 10 May
United Airlines Logo
13:43 - 07:00GEG-SYD
24h 17m2 stops
United Airlines Logo
10:20 - 11:24SYD-GEG
18h 04m1 stop
$1,374United Airlines
Find Deal
Mon, 6 Apr - Thu, 16 Apr
United Airlines Logo
05:00 - 06:55GEG-SYD
32h 55m2 stops
United Airlines Logo
10:20 - 11:24SYD-GEG
18h 04m1 stop
$1,380United Airlines
Find Deal
Sat, 18 Apr - Wed, 6 May
Qantas Airways Logo
06:40 - 09:00PDX-SYD
31h 20m1 stop
Qantas Airways Logo
07:05 - 17:11SYD-PDX
29h 06m2 stops
$1,468Qantas Airways
Find Deal
Thu, 19 Feb - Wed, 25 Feb
Philippine Airlines Logo
21:30 - 09:50SEA-SYD
41h 20m1 stop
Philippine Airlines Logo
11:35 - 18:40SYD-SEA
26h 05m1 stop
$1,507Philippine Airlines
Find Deal
Wed, 4 Feb - Tue, 10 Feb
Qantas Airways Logo
06:40 - 20:50PDX-SYD
43h 10m2 stops
Qantas Airways Logo
21:25 - 20:34SYD-PDX
17h 09m1 stop
$1,512Qantas Airways
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Thu, 26 Feb - Tue, 10 Mar
Philippine Airlines Logo
23:05 - 09:45SEA-SYD
41h 40m1 stop
Philippine Airlines Logo
11:35 - 20:10SYD-SEA
25h 35m1 stop
$1,524Philippine Airlines
Find Deal
Wed, 6 May - Sun, 31 May

United Airlines flights from State of Washington to Sydney

Our best United Airlines deals on State of Washington to Sydney flight tickets
United Airlines
11 Feb
GEG12:24Spokane
25h 51m
1 stop
SYD09:15Sydney Kingsford Smith
21 Feb
SYD12:10Sydney Kingsford Smith
18h 35m
1 stop
GEG11:45Spokane
$1,374
Find similar
United Airlines
18 Apr
GEG05:00Spokane
32h 55m
2 stops
SYD06:55Sydney Kingsford Smith
6 May
SYD10:20Sydney Kingsford Smith
18h 04m
1 stop
GEG11:24Spokane
$1,380
Find similar
United Airlines
10 Mar
GEG13:45Spokane
25h 20m
2 stops
SYD09:05Sydney Kingsford Smith
24 Mar
SYD12:10Sydney Kingsford Smith
17h 34m
1 stop
GEG11:44Spokane
$1,405
Find similar

ANA flights from State of Washington to Sydney

Our best ANA deals on State of Washington to Sydney flight tickets
ANA
7 May
SEA16:30Seattle/Tacoma Intl
23h 55m
1 stop
SYD09:25Sydney Kingsford Smith
31 May
SYD20:55Sydney Kingsford Smith
40h 53m
2 stops
SEA20:48Seattle/Tacoma Intl
$1,561
Find similar
ANA
2 May
SEA13:45Seattle/Tacoma Intl
36h 30m
2 stops
SYD19:15Sydney Kingsford Smith
22 May
SYD20:55Sydney Kingsford Smith
34h 30m
1 stop
SEA14:25Seattle/Tacoma Intl
$1,578
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from State of Washington to Sydney 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 78,305 searches. Data last updated 12 November 2025.
Use the filters below to find and compare flights from Washington to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 10/3

15:45-06:10

1 stop20h 25m

Sydney Kingsford Smith

Tue 24/3

17:45-22:38

1 stop22h 53m

$1,319

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 10/3

15:45-09:00

2 stops23h 15m

Sydney Kingsford Smith

Tue 24/3

17:45-23:01

2 stops23h 16m

$1,325

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 21/4

06:40-07:05

1 stop31h 25m

Sydney Kingsford Smith

Wed 6/5

17:45-22:38

1 stop21h 53m

$1,347

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 6/5

13:30-06:35

2 stops24h 05m

Sydney Kingsford Smith

Sun 10/5

09:25-16:58

2 stops24h 33m

$1,350

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 6/4

13:43-07:00

2 stops24h 17m

Sydney Kingsford Smith

Thu 16/4

10:20-11:24

1 stop18h 04m

$1,374

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sat 18/4

05:00-06:55

2 stops32h 55m

Sydney Kingsford Smith

Wed 6/5

10:20-11:24

1 stop18h 04m

$1,380

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 19/2

06:40-09:00

1 stop31h 20m

Sydney Kingsford Smith

Wed 25/2

07:05-17:11

2 stops29h 06m

$1,468

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 4/2

21:30-09:50

1 stop41h 20m

Sydney Kingsford Smith

Tue 10/2

11:35-18:40

1 stop26h 05m

$1,507

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 26/2

06:40-20:50

2 stops43h 10m

Sydney Kingsford Smith

Tue 10/3

21:25-20:34

1 stop17h 09m

$1,512

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 6/5

23:05-09:45

1 stop41h 40m

Sydney Kingsford Smith

Sun 31/5

11:35-20:10

1 stop25h 35m

$1,524

Flights are sorted by cheapest return flights first.

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

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

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

What is the cheapest month to fly to Sydney?

The month of August is, on average, the cheapest month to fly to Sydney from State of Washington, with most prices found around $1,299. If you aren’t able to travel to Sydney during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,371.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,481. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,790.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from State of Washington to Sydney in the afternoon for as low as $1,414. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,736 on average. Flights to Sydney from State of Washington in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,619 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from State of Washington for as low as $1,333 on momondo.

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

You could potentially save up to 45% on your flight if you consider stops on a State of Washington to Sydney flight.

Cheap State of Washington to Sydney flight deals and tips

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

Direct flights

None
There are no direct flights from State of Washington to Sydney. There are no popular flight routes from State of Washington to Sydney.
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  • When did momondo last update prices for flights from Washington to Sydney Kingsford Smith Airport?

    Prices for flights from Washington to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Washington to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Sydney

Compare and see reviews for airlines that fly from State of Washington to Sydney with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,224Free cancellationRating
7.4
9,014 reviews
Search United Airlines flights
Air CanadaPriceFrom $1,287Free cancellationRating
7.1
10,441 reviews
Search Air Canada flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Penrith
Katoomba
Lithgow
Leura
Manly
Bondi Beach
Coogee
Cronulla
Randwick
Charlestown
Newport
Swansea

Why use momondo?

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

It is quick and easy to find Washington to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

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

Yes. momondo allows you to filter the results for Washington to Sydney flights to just show those with flexible booking policies.

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

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 Sydney.

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

Yes momondo offers price alerts on flights to Sydney from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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