Cheap flights from Seattle to Sydney

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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
Quickest
Cheapest
China Eastern
China Eastern
12 Nov
SEA
7:41 am
Seattle/Tacoma Intl airport
27h 29m
1 Stop
6:10 am
+2
SYD
Sydney Kingsford Smith airport
China Eastern
17 Nov
SYD
12:35 am
Sydney Kingsford Smith airport
37h 16m
1 Stop
6:51 pm
SEA
Seattle/Tacoma Intl airport
752 USD
China Eastern
China Eastern
12 Nov
SEA
7:41 am
Seattle/Tacoma Intl airport
27h 29m
1 Stop
6:10 am
+2
SYD
Sydney Kingsford Smith airport
China Eastern
20 Nov
SYD
12:35 am
Sydney Kingsford Smith airport
37h 16m
1 Stop
6:51 pm
SEA
Seattle/Tacoma Intl airport
762 USD
China Eastern
China Eastern
22 Oct
SEA
9:40 am
Seattle/Tacoma Intl airport
27h 40m
1 Stop
7:20 am
+2
SYD
Sydney Kingsford Smith airport
China Eastern
29 Oct
SYD
10:30 pm
Sydney Kingsford Smith airport
39h 21m
2 Stops
7:51 pm
+1
SEA
Seattle/Tacoma Intl airport
790 USD
Qantas Airways
Qantas Airways
03 Feb
SEA
9:21 am
Seattle/Tacoma Intl airport
20h 39m
1 Stop
1:00 am
+2
SYD
Sydney Kingsford Smith airport
Qantas Airways
10 Feb
SYD
10:15 pm
Sydney Kingsford Smith airport
20h 30m
1 Stop
11:45 pm
SEA
Seattle/Tacoma Intl airport
988 USD
Air New Zealand
Air New Zealand
02 Apr
SEA
8:15 am
Seattle/Tacoma Intl airport
23h 25m
2 Stops
1:40 am
+2
SYD
Sydney Kingsford Smith airport
Air New Zealand
12 Apr
SYD
9:55 pm
Sydney Kingsford Smith airport
23h 15m
2 Stops
4:10 am
+1
SEA
Seattle/Tacoma Intl airport
1,036 USD
Air New Zealand
Air New Zealand
04 Apr
SEA
8:15 am
Seattle/Tacoma Intl airport
24h 25m
2 Stops
1:40 am
+2
SYD
Sydney Kingsford Smith airport
Air New Zealand
11 Apr
SYD
9:55 pm
Sydney Kingsford Smith airport
23h 15m
2 Stops
4:10 am
+1
SEA
Seattle/Tacoma Intl airport
1,049 USD

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 to Sydney?
March
The cheapest time of year to fly to Sydney from Seattle is March. Most expensive is December
What is the cheapest day to fly to Sydney?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Saturday
When is the cheapest time to fly to Sydney?
in the afternoon
Seattle to Sydney flights are approximately 7% more expensive in the morning than in the afternoon
What is the cheapest airline that flies to Sydney?
Spirit Airlines
Spirit Airlines, Alaska Airlines, and Major Airline are the most popular carriers operating from Seattle to Sydney
What is the cheapest 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
When is the cheapest time to book a flight to Sydney?
52 days before
The cheapest time to buy a flight from Seattle to Sydney is approximately 52 days to departure
60
Days before departure
0

Flight information for Seattle to Sydney (SYD - 03A)

Find info about flight duration, direct flights, and airports for your flight from Seattle to Sydney
Fastest flight time 22h 20m The fastest flight from Seattle to Sydney takes 22h 20m.
Direct flights None There are no direct flights from Seattle to Sydney. Popular non-direct route for this connection is Seattle/Tacoma Intl - Sydney Kingsford Smith.
Airports in Sydney 1 airport There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

Alternative routes for Seattle to Sydney

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Portland to Sydney
Fastest flight time
20h 05m
Cheapest price
940 USD

Flights from Seattle to: