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.
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 to Australia

(Round-trip)
Depart: Wed Oct 18 2017 Return: Wed Oct 25 2017 Trip spans 8 days
Air China
Air China
SEA
SYD
34h 55m
2 stops
SYD
SEA
39h 37m
2 stops
Depart: Sat Sep 2 2017 Return: Sat Sep 16 2017 Trip spans 15 days
Major Airline
Major Airline
SEA
SYD
21h 20m
2 stops
SYD
SEA
25h 45m
2 stops
Depart: Wed Jun 14 2017 Return: Tue Aug 8 2017 Trip spans 56 days
Air New Zealand
Air New Zealand
SEA
SYD
21h 20m
2 stops
SYD
SEA
22h 30m
2 stops
Depart: Sun Aug 6 2017 Return: Thu Aug 17 2017 Trip spans 12 days
United
United
SEA
MEL
43h 03m
2 stops
MEL
SEA
20h 18m
1 stop
Depart: Sat Sep 9 2017 Return: Sat Sep 23 2017 Trip spans 15 days
Hainan Airlines
Hainan Airlines
SEA
MEL
47h 20m
2 stops
MEL
SEA
44h 15m
2 stops
Depart: Tue Oct 31 2017 Return: Fri Dec 1 2017 Trip spans 32 days
EVA Air
EVA Air
SEA
BNE
39h 25m
1 stop
BNE
SEA
36h 10m
1 stop
Depart: Tue May 16 2017 Return: Mon May 29 2017 Trip spans 14 days
$1081
Select
Air Canada
Air Canada
SEA
BNE
24h 05m
1 stop
BNE
SEA
15h 51m
1 stop
Depart: Sat May 27 2017 Return: Sun Jun 4 2017 Trip spans 9 days
$1270
Select
Virgin Australia
Virgin Australia
SEA
ADL
27h 05m
2 stops
ADL
SEA
40h 57m
2 stops
Depart: Sat Sep 2 2017 Return: Sun Sep 10 2017 Trip spans 9 days
Air China
Air China
SEA
SYD
35h 55m
2 stops
SYD
SEA
38h 58m
2 stops
Depart: Sat Jul 1 2017 Return: Mon Jul 31 2017 Trip spans 31 days
Air New Zealand
Air New Zealand
SEA
SYD
25h 15m
2 stops
SYD
SEA
22h 30m
2 stops
Depart: Thu Jun 22 2017 Return: Tue Jul 4 2017 Trip spans 13 days
Major Airline
Major Airline
SEA
MEL
24h 05m
1 stop
MEL
SEA
20h 22m
1 stop
Depart: Tue Jul 25 2017 Return: Tue Aug 1 2017 Trip spans 8 days
United
United
SEA
SYD
24h 10m
1 stop
SYD
SEA
23h 50m
1 stop
Depart: Sat Jun 17 2017 Return: Wed Jun 28 2017 Trip spans 12 days
Air New Zealand
Air New Zealand
SEA
SYD
25h 15m
2 stops
SYD
SEA
25h 25m
1 stop
Depart: Fri Jun 16 2017 Return: Wed Jul 5 2017 Trip spans 20 days
Major Airline
Major Airline
SEA
BNE
24h 18m
2 stops
BNE
SEA
22h 00m
2 stops
Depart: Sat Jun 17 2017 Return: Tue Jul 4 2017 Trip spans 18 days
$1272
Select
Virgin Australia
Virgin Australia
SEA
PER
47h 25m
2 stops
PER
SEA
50h 25m
2 stops
Depart: Thu Jun 22 2017 Return: Sat Jul 1 2017 Trip spans 10 days
$1288
Select
Air Canada
Air Canada
SEA
BNE
17h 00m
1 stop
BNE
SEA
20h 10m
1 stop
Depart: Sun May 14 2017 Return: Sat May 20 2017 Trip spans 7 days
$1375
Select
Virgin Australia
Virgin Australia
SEA
MEL
27h 09m
1 stop
MEL
SEA
40h 22m
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.

^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

Seattle
$755
Destination

Brisbane
$986
Adelaide
$1270
Perth
$1272
Melbourne
$953
Sydney
$755