$569 Find Cheap Flights from Sydney to Washington - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Washington departing on 7/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Sydney to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sydney to Washington

Fri, Sep 25 - Sun, Sep 27
British Airways Logo
12:00 pm - 1:19 pm
SYD
-
SEA
42h 19m
1 stop
British Airways Logo
7:10 am - 7:05 am
SEA
-
SYD
30h 55m
1 stop
$818British Airways
Wed, Aug 26 - Wed, Sep 2
Multiple Airlines Logo
1:15 pm - 7:39 pm
SYD
-
SEA
23h 24m
2 stops
Multiple Airlines Logo
5:10 pm - 11:50 am
SEA
-
SYD
25h 40m
2 stops
$858Multiple Airlines
Thu, Aug 13 - Sat, Aug 22
Multiple Airlines Logo
1:15 pm - 4:54 pm
SYD
-
PDX
44h 39m
3 stops
Multiple Airlines Logo
5:56 pm - 11:50 am
PDX
-
SYD
24h 54m
2 stops
$886Multiple Airlines
Thu, Aug 13 - Sat, Aug 22
Multiple Airlines Logo
1:15 pm - 4:54 pm
SYD
-
PDX
44h 39m
3 stops
Multiple Airlines Logo
5:56 pm - 11:50 am
PDX
-
SYD
24h 54m
2 stops
$895Multiple Airlines
Tue, Aug 11 - Mon, Aug 31
Multiple Airlines Logo
8:45 pm - 11:59 pm
SYD
-
SEA
20h 14m
1 stop
Multiple Airlines Logo
7:20 am - 6:50 pm
SEA
-
SYD
18h 30m
1 stop
$909Multiple Airlines
Mon, Jul 20 - Wed, Aug 5
Qantas Airways Logo
5:50 pm - 9:58 pm
SYD
-
SEA
21h 08m
1 stop
Qantas Airways Logo
5:02 pm - 7:05 am
SEA
-
SYD
21h 03m
1 stop
$911Qantas Airways
Mon, Jul 20 - Wed, Aug 5
American Airlines Logo
12:00 pm - 4:47 pm
SYD
-
SEA
21h 47m
1 stop
American Airlines Logo
7:11 am - 7:05 am
SEA
-
SYD
30h 54m
1 stop
$931American Airlines
Mon, Jul 13 - Mon, Jul 27
American Airlines Logo
9:10 am - 9:45 pm
SYD
-
SEA
29h 35m
1 stop
American Airlines Logo
3:21 pm - 6:55 am
SEA
-
SYD
22h 34m
1 stop
$934American Airlines
Tue, Aug 11 - Mon, Aug 31
Alaska Airlines Logo
8:45 pm - 8:00 am
SYD
-
SEA
28h 15m
1 stop
Alaska Airlines Logo
7:20 am - 6:50 pm
SEA
-
SYD
18h 30m
1 stop
$937Alaska Airlines
Thu, Aug 13 - Sat, Aug 22
Alaska Airlines Logo
8:45 pm - 8:50 pm
SYD
-
PDX
17h 05m
1 stop
Alaska Airlines Logo
8:00 am - 6:50 pm
PDX
-
SYD
17h 50m
1 stop
$942Alaska Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Washington flights

Get data-powered insights and trends into flights from Sydney to Washington to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sydney to State of Washington?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to State of Washington departing in September.

What is the cheapest month to fly from Sydney to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Washington is November, when tickets cost $548 (return) on average. On the other hand, the most expensive months are July and April, when the average cost of round-trip tickets is $848 and $846 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sydney to Washington, you should book around 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$569
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Sydney to Portland

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Sydney to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sydney to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Sydney to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sydney to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sydney to Washington

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9940 reviews
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
6.6Food
Airline reviews

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

6.0 GoodMatthew, Jul 2026
ORD - SEA
Read more United Airlines reviews

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Uncomfortable plastic seats even in premium economy. No free wifi. Even paid wifi was spotty to nonexistent. Bad food. Much worse than economy on foreign carriers like Qantas.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

leg space better than expected. two washrooms for one plane isn't enough.

Great. Food going from Australia to the US was better than other way around, but still needs improvement in terms of quality and quantity!!!

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

Due to a cancelled flight the day before this flight only had 44 people. Best flight ever on international route. Food getting better. Can United provide fruit ex apples and bananas for snacks? Crew fantastic.

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

The flight attendants were not very nice. No smiles On my return trip I was charged for one bag $83.30 although I had purchased the flight including one piece of luggage. Can this be refunded to me? Thank you!

Full compliments to Captain for all four landing. Crew could be more polite and nice.

So smooth and easy! From boarding to arriving, we are very happy with our experience on air Canada.

There was a long delay on tarmac. The pilot kept us informed. The flight stewards were not entertaining or comforting. During the flight we received minimal service. Several food choices for purchase were not available at our seating of row 52. Only twice were we offered water for hydration. A half hour before landing teh pilot acknowledged that some passengers with connecting flights should tell flight stewards and they would help.. We had a connecting flight thand at should have had a 2+ hour layover and now would be less than 1 hour from departure. The flight attendant told us not to worry.. plenty of time. We did not get off the plane until after 6 o'clock. We are seniors (ages 74 and 72 ) and had to walk the length of the terminal to go thru customs and the length of the next terminal to departure gate for 6:30 a boarding call. We ran and were breathing hard and reached the departure gate by 6:50. We rate the flight stewards negatively...the pilot did his best.

It was very bad travelling with air canada the people working at check in bagages was very bad person any way I pay to much many to get good flights but it’s not

Air Canada switched my connecting flight to Alaska airlines without any communication to me. The process of finding this out, needing to leave one portion of the airport for the next and what i should have done with my luggage was not communicated to me at all. Even the Air Canada agent that noticed the airline switch at the terminal did not explain this process to me. In doing so my luggage did not arrive with me. The delay to create a claim too 2 hours.

Food was great. Staff was great. I would have liked to see more in flight shopping - they went by so fast I missed it. I would have liked more variety in tv shows but overall flight was great. The staff made all the difference.

The bathroom I used could have been cleaner and tidier. Didn't look like it was kept very well. The staff were super helpful. There was an issue with my screen, and they rebooted it for me. They were also great at dishing out our meals, and cleaning up after.

The seats were very nice. The flight attendants were obnoxious and rude. I felt that if I asked for something they would bite my head off! When I did ask for something, they said they would do it after they finished what they were doing, but never did. Horrible. Check in at business class took way too long.

Everything you need to know for your flight from Sydney to Washington

Information on your arrival and departure airports