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
31 Oct
SEA
9:03 am
Seattle/Tacoma Intl airport
28h 12m
1 Stop
7:15 am
+2
SYD
Sydney Kingsford Smith airport
China Eastern
10 Nov
SYD
12:35 am
Sydney Kingsford Smith airport
37h 26m
1 Stop
7:01 pm
SEA
Seattle/Tacoma Intl airport
762 USD
China Eastern
China Eastern
15 Oct
SEA
9:40 am
Seattle/Tacoma Intl airport
27h 40m
1 Stop
7:20 am
+2
SYD
Sydney Kingsford Smith airport
China Eastern
27 Oct
SYD
12:35 am
Sydney Kingsford Smith airport
37h 25m
1 Stop
8:00 pm
SEA
Seattle/Tacoma Intl airport
763 USD
China Eastern
China Eastern
10 Oct
SEA
9:40 am
Seattle/Tacoma Intl airport
27h 40m
1 Stop
7:20 am
+2
SYD
Sydney Kingsford Smith airport
China Eastern
20 Oct
SYD
12:10 am
Sydney Kingsford Smith airport
36h 27m
1 Stop
6:37 pm
SEA
Seattle/Tacoma Intl airport
774 USD
Hawaiian Airlines
Hawaiian Airlines
16 Aug
SEA
2:00 am
Seattle/Tacoma Intl airport
17h 45m
1 Stop
12:45 pm
+1
SYD
Sydney Kingsford Smith airport
Hawaiian Airlines
30 Aug
SYD
7:40 am
Sydney Kingsford Smith airport
17h 05m
1 Stop
7:45 am
SEA
Seattle/Tacoma Intl airport
909 USD
Hawaiian Airlines
Hawaiian Airlines
16 Aug
SEA
2:00 am
Seattle/Tacoma Intl airport
17h 45m
1 Stop
12:45 pm
+1
SYD
Sydney Kingsford Smith airport
Hawaiian Airlines
23 Aug
SYD
7:40 am
Sydney Kingsford Smith airport
17h 05m
1 Stop
7:45 am
SEA
Seattle/Tacoma Intl airport
937 USD
Delta
Delta
17 Aug
SEA
10:25 am
Seattle/Tacoma Intl airport
20h 10m
1 Stop
11:35 pm
+1
SYD
Sydney Kingsford Smith airport
Delta
15 Sep
SYD
7:30 pm
Sydney Kingsford Smith airport
19h 27m
1 Stop
9:57 pm
SEA
Seattle/Tacoma Intl airport
1,395 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?
Monday
The cheapest day of the week is typically Monday. The most expensive is typically Friday
WHEN IS THE CHEAPEST TIME TO FLY TO SYDNEY?
in the evening
Seattle to Sydney flights are approximately 109% more expensive in the morning than in the evening
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?
47 days before
The cheapest time to buy a flight from Seattle to Sydney is approximately 47 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 17h 45m The fastest flight from Seattle to Sydney takes 17h 45m.
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
18h 35m
Cheapest price
854 USD

Flights from Seattle to:

  • Sydney Kingsford Smith
  • New South Wales
  • Australia
  • South Pacific

Flights to Sydney from:

  • Seattle
  • Washington
  • United States
  • North America