Find Cheap Flights from Seattle to Australia

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Seattle to Australia

(Round-trip)
Depart: Sun Nov 26 2017 Return: Sun Dec 3 2017 Trip spans 8 days
China Eastern
China Eastern
SEA
SYD
48h 16m
2 stops
SYD
SEA
37h 55m
2 stops
Depart: Thu Nov 23 2017 Return: Tue Dec 5 2017 Trip spans 13 days
Multiple Airlines
Multiple Airlines
SEA
SYD
39h 00m
3 stops
SYD
SEA
45h 53m
3 stops
Depart: Fri Nov 24 2017 Return: Sun Dec 17 2017 Trip spans 24 days
XiamenAir
XiamenAir
SEA
MEL
50h 20m
2 stops
MEL
SEA
40h 50m
3 stops
Depart: Thu Nov 9 2017 Return: Sat Nov 18 2017 Trip spans 10 days
Hainan Airlines
Hainan Airlines
SEA
SYD
47h 30m
2 stops
SYD
SEA
44h 15m
2 stops
Depart: Mon Dec 11 2017 Return: Thu Dec 21 2017 Trip spans 11 days
Air New Zealand
Air New Zealand
SEA
SYD
21h 00m
1 stop
SYD
SEA
23h 03m
2 stops
Depart: Mon Feb 12 2018 Return: Mon Feb 26 2018 Trip spans 15 days
$1018
Select
Virgin Australia
Virgin Australia
SEA
MEL
41h 53m
1 stop
MEL
SEA
38h 10m
1 stop
Depart: Thu Feb 22 2018 Return: Thu Mar 1 2018 Trip spans 8 days
$1021
Select
EVA Air
EVA Air
SEA
BNE
28h 50m
1 stop
BNE
SEA
37h 35m
1 stop
Depart: Sun Dec 3 2017 Return: Sun Dec 10 2017 Trip spans 8 days
China Eastern
China Eastern
SEA
SYD
48h 13m
1 stop
SYD
SEA
37h 55m
1 stop
Depart: Mon Dec 4 2017 Return: Thu Feb 1 2018 Trip spans 60 days
China Eastern
China Eastern
SEA
SYD
46h 28m
2 stops
SYD
SEA
39h 20m
2 stops
Depart: Fri Nov 17 2017 Return: Sun Nov 26 2017 Trip spans 10 days
XiamenAir
XiamenAir
SEA
SYD
50h 50m
2 stops
SYD
SEA
40h 10m
2 stops
Depart: Sat Nov 11 2017 Return: Mon Nov 20 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
SEA
SYD
54h 00m
3 stops
SYD
SEA
47h 58m
3 stops
Depart: Mon Apr 2 2018 Return: Sun Apr 8 2018 Trip spans 7 days
Hainan Airlines
Hainan Airlines
SEA
SYD
47h 30m
2 stops
SYD
SEA
42h 25m
2 stops
Depart: Thu Nov 16 2017 Return: Thu Nov 23 2017 Trip spans 8 days
China Eastern
China Eastern
SEA
SYD
48h 16m
1 stop
SYD
SEA
39h 07m
1 stop
Depart: Wed Apr 11 2018 Return: Thu May 10 2018 Trip spans 30 days
Air New Zealand
Air New Zealand
SEA
MEL
27h 05m
2 stops
MEL
SEA
25h 20m
2 stops
Depart: Fri Nov 10 2017 Return: Sun Nov 26 2017 Trip spans 17 days
XiamenAir
XiamenAir
SEA
SYD
50h 50m
2 stops
SYD
SEA
40h 10m
2 stops
Depart: Thu Mar 8 2018 Return: Sat Mar 31 2018 Trip spans 23 days
$1023
Select
Virgin Australia
Virgin Australia
SEA
SYD
29h 25m
2 stops
SYD
SEA
21h 44m
1 stop
Depart: Mon Nov 13 2017 Return: Sat Nov 18 2017 Trip spans 6 days
Hainan Airlines
Hainan Airlines
SEA
SYD
47h 30m
2 stops
SYD
SEA
44h 15m
2 stops
Depart: Thu Feb 22 2018 Return: Thu Mar 8 2018 Trip spans 15 days
Multiple Airlines
Multiple Airlines
SEA
SYD
32h 35m
2 stops
SYD
SEA
31h 26m
2 stops
Depart: Tue Dec 12 2017 Return: Thu Dec 21 2017 Trip spans 10 days
Air New Zealand
Air New Zealand
SEA
SYD
24h 45m
2 stops
SYD
SEA
23h 03m
2 stops
Depart: Sat Nov 11 2017 Return: Sun Nov 19 2017 Trip spans 9 days
China Eastern
China Eastern
SEA
SYD
46h 31m
2 stops
SYD
SEA
37h 52m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Seattle
$768
Destination

Brisbane
$1021
Melbourne
$864
Sydney
$768