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
Air New Zealand
Air New Zealand
26 Feb
7:15 am
SEA
Seattle/Tacoma Intl airport
22h 25m
2 Stops
SYD
12:40 am
+2
Sydney Kingsford Smith airport
Air New Zealand
17 Mar
8:40 am
SYD
Sydney Kingsford Smith airport
26h 10m
1 Stop
SEA
4:50 pm
Seattle/Tacoma Intl airport
849 USD
Air New Zealand
Air New Zealand
21 May
8:25 am
SEA
Seattle/Tacoma Intl airport
24h 15m
2 Stops
SYD
1:40 am
+2
Sydney Kingsford Smith airport
Air New Zealand
30 May
7:40 am
SYD
Sydney Kingsford Smith airport
24h 50m
1 Stop
SEA
3:30 pm
Seattle/Tacoma Intl airport
850 USD
Hawaiian Airlines
Hawaiian Airlines
06 May
2:00 am
SEA
Seattle/Tacoma Intl airport
17h 45m
1 Stop
SYD
12:45 pm
+1
Sydney Kingsford Smith airport
Hawaiian Airlines
13 May
7:40 am
SYD
Sydney Kingsford Smith airport
17h 15m
1 Stop
SEA
7:55 am
Seattle/Tacoma Intl airport
893 USD
Hawaiian Airlines
Hawaiian Airlines
06 May
2:00 am
SEA
Seattle/Tacoma Intl airport
17h 45m
1 Stop
SYD
12:45 pm
+1
Sydney Kingsford Smith airport
Hawaiian Airlines
13 May
7:40 am
SYD
Sydney Kingsford Smith airport
17h 15m
1 Stop
SEA
7:55 am
Seattle/Tacoma Intl airport
893 USD
Virgin Australia
Virgin Australia
24 Dec
5:33 am
SEA
Seattle/Tacoma Intl airport
23h 37m
1 Stop
SYD
12:10 am
+2
Sydney Kingsford Smith airport
Virgin Australia
30 Dec
10:20 pm
SYD
Sydney Kingsford Smith airport
20h 10m
1 Stop
SEA
11:30 pm
Seattle/Tacoma Intl airport
1,227 USD
Air New Zealand
Air New Zealand
26 Feb
7:15 am
SEA
Seattle/Tacoma Intl airport
22h 25m
2 Stops
SYD
12:40 am
+2
Sydney Kingsford Smith airport
Air New Zealand
17 Mar
8:40 am
SYD
Sydney Kingsford Smith airport
26h 10m
1 Stop
SEA
4:50 pm
Seattle/Tacoma Intl airport
849 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 Friday
When is the cheapest time to fly to Sydney?
in the afternoon
Seattle to Sydney flights are approximately 11% more expensive in the evening than in the afternoon
What is the cheapest airline that flies to Sydney?
Alaska Airlines
Alaska Airlines, Major Airline, and Hainan Airlines 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?
55 days before
The cheapest time to buy a flight from Seattle to Sydney is approximately 55 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 19h 6m The fastest flight from Seattle to Sydney takes 19h 6m.
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
19h 33m
Cheapest price
887 USD

Flights from Seattle to: