Find Cheap Flights from Seattle/Tacoma Intl 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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle/Tacoma Intl to Australia

(Round-trip)
Depart: Tue Oct 31 2017 Return: Thu Nov 9 2017 Trip spans 10 days
China Eastern
China Eastern
SEA
SYD
48h 16m
2 stops
SYD
SEA
39h 07m
2 stops
Depart: Wed Mar 14 2018 Return: Mon Mar 26 2018 Trip spans 13 days
Qantas Airways
Qantas Airways
SEA
MEL
20h 30m
1 stop
MEL
SEA
36h 01m
1 stop
Depart: Sat Nov 11 2017 Return: Mon Nov 20 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
SEA
SYD
52h 00m
3 stops
SYD
SEA
47h 58m
3 stops
Depart: Fri Nov 10 2017 Return: Thu Nov 16 2017 Trip spans 7 days
XiamenAir
XiamenAir
SEA
SYD
50h 50m
2 stops
SYD
SEA
40h 10m
2 stops
Depart: Tue Nov 7 2017 Return: Sat Nov 18 2017 Trip spans 12 days
Hainan Airlines
Hainan Airlines
SEA
SYD
71h 10m
2 stops
SYD
SEA
44h 15m
2 stops
Depart: Thu Mar 15 2018 Return: Sun Apr 1 2018 Trip spans 18 days
$1022
Select
EVA Air
EVA Air
SEA
BNE
40h 00m
1 stop
BNE
SEA
38h 15m
1 stop
Depart: Wed Nov 29 2017 Return: Tue Dec 12 2017 Trip spans 14 days
China Eastern
China Eastern
SEA
SYD
46h 31m
2 stops
SYD
SEA
39h 10m
2 stops
Depart: Wed Feb 14 2018 Return: Wed Feb 28 2018 Trip spans 15 days
Qantas Airways
Qantas Airways
SEA
SYD
20h 00m
1 stop
SYD
SEA
27h 11m
2 stops
Depart: Mon Nov 6 2017 Return: Sat Nov 18 2017 Trip spans 13 days
Multiple Airlines
Multiple Airlines
SEA
SYD
55h 15m
3 stops
SYD
SEA
47h 58m
3 stops
Depart: Mon Nov 6 2017 Return: Thu Nov 9 2017 Trip spans 4 days
XiamenAir
XiamenAir
SEA
SYD
50h 50m
2 stops
SYD
SEA
40h 10m
2 stops
Depart: Tue Nov 28 2017 Return: Tue Dec 5 2017 Trip spans 8 days
China Eastern
China Eastern
SEA
SYD
48h 16m
2 stops
SYD
SEA
39h 10m
2 stops
Depart: Thu Mar 8 2018 Return: Tue Mar 27 2018 Trip spans 19 days
Qantas Airways
Qantas Airways
SEA
SYD
22h 05m
1 stop
SYD
SEA
27h 56m
2 stops
Depart: Mon Nov 27 2017 Return: Sat Dec 9 2017 Trip spans 13 days
Hainan Airlines
Hainan Airlines
SEA
SYD
47h 30m
2 stops
SYD
SEA
44h 15m
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 Jan 4 2018 Return: Tue Jan 16 2018 Trip spans 13 days
Multiple Airlines
Multiple Airlines
SEA
MEL
37h 05m
2 stops
MEL
SEA
45h 38m
2 stops
Depart: Wed Mar 7 2018 Return: Tue Mar 20 2018 Trip spans 13 days
China Eastern
China Eastern
SEA
SYD
46h 34m
2 stops
SYD
SEA
39h 20m
2 stops
Depart: Wed Feb 14 2018 Return: Tue Mar 13 2018 Trip spans 27 days
Qantas Airways
Qantas Airways
SEA
SYD
20h 00m
1 stop
SYD
SEA
27h 56m
2 stops
Depart: Fri Nov 24 2017 Return: Thu Dec 7 2017 Trip spans 14 days
XiamenAir
XiamenAir
SEA
SYD
50h 50m
2 stops
SYD
SEA
40h 10m
2 stops
Depart: Sun Feb 11 2018 Return: Tue Mar 6 2018 Trip spans 24 days
Multiple Airlines
Multiple Airlines
SEA
SYD
38h 20m
1 stop
SYD
SEA
19h 25m
1 stop
Depart: Mon Mar 19 2018 Return: Sat Mar 24 2018 Trip spans 6 days
China Eastern
China Eastern
SEA
SYD
46h 30m
2 stops
SYD
SEA
38h 45m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Seattle
$770
Destination

Brisbane
$1022
Melbourne
$859
Sydney
$770