Cheap flights from Seattle to Sydney

Round-trip
Economy
Seattle (SEA)
Sydney (SYD)
Sat 6/5
Sat 6/12
Any month
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Flight information for Seattle to Sydney
(SEA to SYD)

Find info about flight duration, direct flights, and airports for your flight from Seattle to Sydney
Best Price Found$1,866The best flight deal from Seattle to Sydney found on momondo in the last 72 hours is $1,866
Fastest flight time24h 50mThe fastest flight from Seattle to Sydney takes 24h 50m
Direct flightsNoneThere are no direct flights from Seattle to Sydney. Popular non-direct route for this connection is Seattle/Tacoma Intl - Sydney Kingsford Smith.
Airports in Sydney1 airportThere is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

How to get the cheapest flight ticket from Seattle 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 from Seattle to Sydney?

May
The cheapest time of year to fly to Sydney from Seattle is May. Most expensive is December

What is the cheapest day to depart Seattle for Sydney?

Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Friday

When is the cheapest time to fly from Seattle to Sydney?

in the afternoon
Seattle to Sydney flights are approximately 20% more expensive in the evening than in the afternoon

What is the cheapest airline that flies to Sydney from Seattle?

Alaska Airlines
Alaska Airlines, Major Airline, and Fiji Airways are the most popular carriers operating from Seattle to Sydney

What is the cheapest Seattle to Sydney flight route?

Seattle/Tacoma Intl - Sydney Kingsford Smith
Fly from Seattle/Tacoma Intl to Sydney Kingsford Smith for the best Seattle - Sydney flight prices
SEA
Seattle/Tacoma Intl
SYD
Sydney Kingsford Smith

How far in advance should you book Seattle to Sydney flights?

58 days before
The cheapest time to buy a flight from Seattle to Sydney is approximately 58 days to departure
60
Days before departure
0

Easily compare round-trip flights from Seattle to Sydney

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Sydney by changing tabs
Multiple Airlines
Oct 4
SEA1:55 pmSeattle/Tacoma Intl
25h 00m
2 stops
SYD2:55 pmSydney Kingsford Smith
Oct 27
SYD10:10 amSydney Kingsford Smith
22h 25m
2 stops
SEA8:35 amSeattle/Tacoma Intl
Multiple Airlines
Oct 5
SEA1:45 pmSeattle/Tacoma Intl
25h 00m
2 stops
SYD2:45 pmSydney Kingsford Smith
Oct 21
SYD10:15 amSydney Kingsford Smith
22h 50m
2 stops
SEA9:05 amSeattle/Tacoma Intl
Multiple Airlines
Oct 30
SEA10:45 amSeattle/Tacoma Intl
27h 45m
2 stops
SYD2:30 pmSydney Kingsford Smith
Dec 2
SYD12:55 pmSydney Kingsford Smith
20h 29m
1 stop
SEA9:24 amSeattle/Tacoma Intl

Find the cheapest one-way flights from Seattle to Sydney

If you're looking for one-way flights from Seattle to Sydney, view some of our deals below.
Hawaiian Airlines
Oct 12
SEA5:05 amSeattle/Tacoma Intl
17h 50m
1 stop
SYD10:55 pmSydney Kingsford Smith
United Airlines
May 28
SEA11:04 amSeattle/Tacoma Intl
22h 56m
1 stop
SYD10:00 amSydney Kingsford Smith
Multiple Airlines
Oct 12
SEA1:55 pmSeattle/Tacoma Intl
24h 50m
2 stops
SYD2:45 pmSydney Kingsford Smith

Best airlines flying from Seattle to Sydney

Compare and see reviews for airlines that fly from Seattle to Sydney with momondo
AirlineRatingFree CancellationPrice
Alaska Airlines
PriceFrom $137
Free Cancellation
Rating
8.2
8.7

Boarding

8.5

Comfort

8.8

Crew

8.0

Entertainment

7.4

Food

Reviews

Pros: Accommodated to an earlier flight without questions asked.

Cons: Always been a delight!

1 / 10
Delta
PriceFrom $137
Free Cancellation
Rating
8.1
8.2

Boarding

8.4

Comfort

8.2

Crew

7.8

Entertainment

8.0

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
United Airlines
PriceFrom $198
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.0

Food

Reviews

Pros: everything

Cons: nono

1 / 10
Fiji Airways
PriceFrom $473
Free Cancellation
Rating
5.8
5.5

Boarding

6.0

Comfort

6.5

Crew

5.5

Entertainment

5.5

Food

Reviews

Pros: Friendly attendants; a lot of service available.

Cons: Movie selection was minimal and mostly outdated; food was small portions and less than interesting choices.

1 / 2
Qantas Airways
PriceFrom $554
Free Cancellation
Rating
7.4
7.7

Boarding

6.8

Comfort

8.6

Crew

6.8

Entertainment

7.3

Food

Reviews

Cons: For a flagship airline, a in seat screen should be a given. This is not a budget airline.

1 / 4
American Airlines
PriceFrom $560
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.9

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Yes made sure mask was in place

Cons: No

1 / 10
Virgin Australia
PriceFrom $646
Free Cancellation
Rating
8.2
Japan Airlines
PriceFrom $658
Free Cancellation
Rating
7.2
7.0

Boarding

6.9

Comfort

7.9

Crew

7.1

Entertainment

7.0

Food

Reviews

Cons: Menu options, movies

1 / 10
China Eastern
PriceFrom $680
Free Cancellation
Rating
7.5
7.9

Boarding

7.4

Comfort

8.2

Crew

6.9

Entertainment

6.9

Food

Reviews

Pros: Standard flight

Cons: My connecting flights were terrible. I was kept at the airport on a layover to another city and they wouldn't let me board because they said my passport number was entered wrong on the reservation. This made no sense as I had gotten off another flight on my way back home. No one at the airport in Shanghai was helpful and it was really frustrating to think that I would be stuck in China. I was finally able to track down a international supervisor who was able to print out my boarding passes and let me board my flight. Unfortunately, another family with small kids were dealing with the same issue as me only their flight was leaving in 30 mins. I hope they were able to make their flight.

1 / 7
Hawaiian Airlines
PriceFrom $799
Free Cancellation
Rating
8.2
8.4

Boarding

9.0

Comfort

9.0

Crew

8.7

Entertainment

8.8

Food

Reviews

Pros: The flight was cancelled by the airline for no good reason, and it was hard to get the refund for the tickets.

Cons: Better would be to actually use the flight.

1 / 7

Which airlines flying from Seattle/Tacoma Intl to Sydney Kingsford Smith have COVID-19 safety policies in place?

Many airlines have put safety measures in place to reduce the spread of COVID-19. Two of the airlines doing this are Delta and Alaska Airlines. Usage of HEPA filters, scheduled sanitation, enhanced cleaning of aircrafts, pre-flight testing, and mask policies are some of the implemented practices made by airlines to help keep you safe as you depart from Seattle/Tacoma Intl to Sydney Kingsford Smith. Keep in mind that policies will vary by airline.

Are airlines flying from Seattle/Tacoma Intl to Sydney Kingsford Smith offering flexible cancellation due to COVID-19?

Some of our partner airlines flying from Seattle/Tacoma Intl to Sydney Kingsford Smith are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are Air Canada, Air New Zealand, and Qantas Airways. You can search for the full list of airlines like Air Canada that are offering this flexibility.


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