Find Deals on Flights from Seattle/Tacoma Intl to Sydney Kingsford Smith (SEA - SYD)

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 Sydney Kingsford Smith

(Round-trip)
Depart: Tue Apr 5 2016 Return: Tue Apr 26 2016 Trip spans 22 days
Virgin Australia
Virgin Australia
SEA
4:15p
SYD
10:20p
30h 05m
2 stops
SYD
5:20p
SEA
10:52p
29h 32m
2 stops
Depart: Mon Aug 29 2016 Return: Thu Sep 29 2016 Trip spans 32 days
Virgin Australia
Virgin Australia
SEA
4:00p
SYD
10:20p
30h 20m
2 stops
SYD
5:20p
SEA
1:40a
32h 20m
2 stops
Depart: Tue Aug 30 2016 Return: Tue Sep 27 2016 Trip spans 29 days
Virgin Australia
Virgin Australia
SEA
4:00p
SYD
10:20p
30h 20m
2 stops
SYD
5:20p
SEA
12:10a
30h 50m
2 stops
Depart: Wed Mar 2 2016 Return: Wed Mar 16 2016 Trip spans 14 days
Virgin Australia
Virgin Australia
SEA
9:47a
SYD
7:20p
33h 33m
2 stops
SYD
5:20p
SEA
11:43p
30h 23m
2 stops
Depart: Sun May 1 2016 Return: Tue May 31 2016 Trip spans 31 days
Virgin Australia
Virgin Australia
SEA
10:45a
SYD
10:20p
35h 35m
2 stops
SYD
5:20p
SEA
10:12p
28h 52m
2 stops
Depart: Tue May 10 2016 Return: Tue May 24 2016 Trip spans 15 days
Virgin Australia
Virgin Australia
SEA
8:55a
SYD
10:20p
37h 25m
2 stops
SYD
5:20p
SEA
10:10p
28h 50m
2 stops
Depart: Thu Feb 25 2016 Return: Thu Mar 10 2016 Trip spans 15 days
Virgin Australia
Virgin Australia
SEA
6:24a
SYD
7:20p
36h 56m
2 stops
SYD
4:20p
SEA
1:30a
33h 10m
2 stops
Depart: Sat Mar 12 2016 Return: Tue Mar 29 2016 Trip spans 17 days
Virgin Australia
Virgin Australia
SEA
5:59a
SYD
8:20p
37h 21m
2 stops
SYD
5:20p
SEA
11:43p
30h 23m
2 stops
Depart: Fri Jun 3 2016 Return: Mon Jun 20 2016 Trip spans 18 days
Virgin Australia
Virgin Australia
SEA
9:45a
SYD
10:20p
36h 35m
2 stops
SYD
5:20p
SEA
1:43a
32h 23m
2 stops
Depart: Sat Jun 4 2016 Return: Mon Jun 20 2016 Trip spans 17 days
Virgin Australia
Virgin Australia
SEA
8:15a
SYD
10:20p
38h 05m
2 stops
SYD
5:20p
SEA
12:20a
31h 00m
2 stops
Depart: Fri Feb 19 2016 Return: Fri Mar 4 2016 Trip spans 15 days
Virgin Australia
Virgin Australia
SEA
6:24a
SYD
7:20p
36h 56m
2 stops
SYD
4:20p
SEA
11:40p
31h 20m
2 stops
Depart: Sat Feb 27 2016 Return: Sat Mar 12 2016 Trip spans 15 days
Virgin Australia
Virgin Australia
SEA
7:20a
SYD
7:20p
36h 00m
2 stops
SYD
4:20p
SEA
11:43p
54h 23m
2 stops
Depart: Sun Apr 3 2016 Return: Sun Apr 17 2016 Trip spans 15 days
$1049
Select
Delta
Delta
SEA
2:26p
SYD
9:50a
19h 24m
1 stop
SYD
6:00a
SEA
12:21a
18h 21m
1 stop
Depart: Thu May 5 2016 Return: Tue May 17 2016 Trip spans 13 days
$1064
Select
Major Airline
Major Airline
SEA
11:00a
SYD
7:15a
20h 15m
1 stop
SYD
2:10a
SEA
9:09p
18h 59m
1 stop
Depart: Wed Aug 24 2016 Return: Thu Sep 8 2016 Trip spans 16 days
$1074
Select
United
United
SEA
2:20p
SYD
9:50a
19h 30m
1 stop
SYD
6:30a
SEA
8:36a
26h 06m
1 stop
Depart: Wed Apr 6 2016 Return: Wed Apr 13 2016 Trip spans 8 days
$1125
Select
Air New Zealand
Air New Zealand
SEA
2:30p
SYD
11:35a
21h 05m
2 stops
SYD
6:10a
SEA
5:21a
23h 11m
1 stop
Depart: Fri Apr 15 2016 Return: Sat Apr 23 2016 Trip spans 9 days
$1168
Select
China Eastern Air
China Eastern Air
SEA
11:17a
SYD
12:30p
73h 13m
2 stops
SYD
7:00a
SEA
10:00p
63h 00m
2 stops
Depart: Fri Feb 12 2016 Return: Thu Mar 3 2016 Trip spans 21 days
$1333
Select
Hawaiian Airlines
Hawaiian Airlines
SEA
5:00a
SYD
7:20p
38h 20m
2 stops
SYD
4:20p
SEA
11:30a
19h 10m
1 stop
Depart: Tue Feb 9 2016 Return: Thu Mar 3 2016 Trip spans 24 days
$1590
Select
China Southern
China Southern
SEA
4:00a
SYD
8:40p
40h 40m
2 stops
SYD
5:15p
SEA
5:20a
36h 05m
2 stops
Depart: Wed Jun 22 2016 Return: Mon Jul 11 2016 Trip spans 20 days
$1655
Select
Qantas Airways
Qantas Airways
SEA
2:50p
SYD
10:00a
19h 10m
1 stop
SYD
5:50a
SEA
9:40p
39h 50m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

Here's why:

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

We aggregate tons 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 don'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.

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
$742
Destination

Sydney
$742