Cheap Flights from Seattle, WA to Sydney from $373
On Cheapflightsplus.com you will find 767 connecting flights from Seattle to Sydney. You can compare airfare deals from 33 airlines and multiple travel sites from $373, book and save on cheap plane tickets and last minute offers. Also check out SEA-SYD flight schedule to find best flight time, convenient departure and arrival airports.
Find One-Way and Round-Trip Seattle to Sydney Flight Deals
Best Flights from Seattle to Sydney Today
Price | Departure | Arrival | Flight Duration | Airline | Flight |
---|---|---|---|---|---|
from $382 | 16:30 Seattle Seattle-Tacoma Intl | 10:25+2 дня Sydney Kingsford Smith | 23h 55m layover 3h 45m - Tokyo | All Nippon Airways | NH117 NH879 |
from $386 | 19:15 Seattle Seattle-Tacoma Intl | 08:20+2 дня Sydney Kingsford Smith | 19h 5m layover 2h 19m - Vancouver | Air Canada | AC8809 AC33 |
from $386 | 14:55 Seattle Seattle-Tacoma Intl | 08:20+2 дня Sydney Kingsford Smith | 23h 25m layover 6h 39m - Vancouver | Air Canada | AC8807 AC33 |
from $386 | 13:45 Seattle Seattle-Tacoma Intl | 08:20+2 дня Sydney Kingsford Smith | 24h 35m layover 7h 49m - Vancouver | Air Canada | AC8805 AC33 |
from $386 | 10:00 Seattle Seattle-Tacoma Intl | 08:20+2 дня Sydney Kingsford Smith | 28h 20m layover 11h 30m - Vancouver | Air Canada | AC8803 AC33 |
from $386 | 05:30 Seattle Seattle-Tacoma Intl | 08:20+2 дня Sydney Kingsford Smith | 32h 50m layover 16h 0m - Vancouver | Air Canada | AC8801 AC33 |
from $411 | 12:00 Seattle Seattle-Tacoma Intl | 07:30+2 дня Sydney Kingsford Smith | 26h 30m layover 8h 13m - Los Angeles | Alaska Airlines | AS1144 QF12 |
from $373 | 13:45 Seattle Seattle-Tacoma Intl | 10:25+2 дня Sydney Kingsford Smith | 26h 40m layover 1h 54m - Vancouver 3h 45m - Tokyo | All Nippon Airways | NH5391 NH115 NH879 |
from $396 | 19:34 Seattle Seattle-Tacoma Intl | 19:15+2 дня Sydney Kingsford Smith | 30h 41m layover 3h 55m - San Francisco 4h 5m - Tokyo | All Nippon Airways | NH7305 NH107 NH889 |
from $400 | 19:15 Seattle Seattle-Tacoma Intl | 10:40+2 дня Sydney Kingsford Smith | 22h 25m layover 2h 59m - Vancouver 2h 0m - Brisbane | Air Canada | AC8809 AC35 AC2804 |
from $400 | 14:55 Seattle Seattle-Tacoma Intl | 10:40+2 дня Sydney Kingsford Smith | 26h 45m layover 7h 19m - Vancouver 2h 0m - Brisbane | Air Canada | AC8807 AC35 AC2804 |
from $400 | 14:55 Seattle Seattle-Tacoma Intl | 11:10+2 дня Sydney Kingsford Smith | 27h 15m layover 7h 17m - Vancouver 2h 30m - Brisbane | Air Canada | AC8807 AC35 AC2718 |
from $400 | 13:45 Seattle Seattle-Tacoma Intl | 10:40+2 дня Sydney Kingsford Smith | 27h 55m layover 8h 29m - Vancouver 2h 0m - Brisbane | Air Canada | AC8805 AC35 AC2804 |
from $400 | 13:45 Seattle Seattle-Tacoma Intl | 11:40+2 дня Sydney Kingsford Smith | 28h 55m layover 8h 29m - Vancouver 3h 0m - Brisbane | Air Canada | AC8805 AC35 AC2718 |
from $400 | 10:00 Seattle Seattle-Tacoma Intl | 10:40+2 дня Sydney Kingsford Smith | 31h 40m layover 12h 10m - Vancouver 2h 0m - Brisbane | Air Canada | AC8803 AC35 AC2804 |
from $400 | 10:00 Seattle Seattle-Tacoma Intl | 11:10+2 дня Sydney Kingsford Smith | 32h 10m layover 12h 12m - Vancouver 2h 30m - Brisbane | Air Canada | AC8803 AC35 AC2718 |
Flight Schedule Seattle (Washington) to Sydney
Departure | Arrival | Flight Details | Flight Duration | Price |
---|---|---|---|---|
05:00 — 06:55
+2 days
|
05:00 — 07:15
UA5657
United Airlines
Seattle — San Francisco
15h 45m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
32h 55m including layover |
Find flight
from$420 |
|
05:30 — 08:20
+2 days
|
05:45 — 06:56
AC8801
Air Canada
Seattle — Vancouver
16h stop
22:40 — 09:35
AC33
Air Canada
Vancouver — Sydney
|
32h 50m including layover |
Find flight
from$386 |
|
06:45 — 07:00
+2 days
|
06:45 — 09:29
UA1681
United Airlines
Seattle — Los Angeles
13h 16m stop
22:45 — 07:00
UA839
United Airlines
Los Angeles — Sydney
|
31h 15m including layover |
Find flight
from$420 |
|
06:45 — 07:00
+2 days
|
06:25 — 09:20
UA2127
United Airlines
Seattle — Los Angeles
13h 10m stop
22:50 — 07:00
UA839
United Airlines
Los Angeles — Sydney
|
31h 15m including layover |
Find flight
from$421 |
|
07:00 — 06:55
+2 days
|
07:00 — 09:19
UA2640
United Airlines
Seattle — San Francisco
13h 41m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
30h 55m including layover |
Find flight
from$420 |
|
07:00 — 06:55
+2 days
|
07:00 — 09:20
UA714
United Airlines
Seattle — San Francisco
13h 40m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
30h 55m including layover |
Find flight
from$424 |
|
08:00 — 06:05
+2 days
|
08:05 — 10:24
HA6903
Hawaiian Airlines
Seattle — San Francisco
10h 36m stop
22:00 — 06:05
QF74
Qantas
San Francisco — Sydney
|
28h 5m including layover |
Find flight
from$632 |
|
08:08 — 06:05
+2 days
|
08:08 — 10:22
AS1166
Alaska Airlines
Seattle — San Francisco
11h 28m stop
22:00 — 06:05
QF74
Qantas
San Francisco — Sydney
|
28h 57m including layover |
Find flight
from$418 |
|
09:05 — 06:55
+2 days
|
09:05 — 11:28
UA5707
United Airlines
Seattle — San Francisco
11h 32m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
28h 50m including layover |
Find flight
from$420 |
|
09:50 — 06:55
+2 days
|
09:45 — 12:01
UA1470
United Airlines
Seattle — San Francisco
10h 51m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
28h 5m including layover |
Find flight
from$420 |
|
10:00 — 08:20
+2 days
|
10:00 — 11:05
AC8803
Air Canada
Seattle — Vancouver
11h 30m stop
22:40 — 07:20
AC33
Air Canada
Vancouver — Sydney
|
28h 20m including layover |
Find flight
from$386 |
|
10:17 — 07:30
+2 days
|
10:17 — 13:10
AS505
Alaska Airlines
Seattle — Los Angeles
10h stop
23:10 — 07:30
QF12
Qantas
Los Angeles — Sydney
|
28h 13m including layover |
Find flight
from$416 |
|
11:25 — 19:45
+2 days
|
11:25 — 14:40
AS8027
Alaska Airlines
Seattle — Honolulu
22h 45m stop
12:45 — 19:45
AS8451
Alaska Airlines
Honolulu — Sydney
|
39h 20m including layover |
Find flight
from$577 |
|
11:30 — 06:05
+2 days
|
11:30 — 13:46
AS1112
Alaska Airlines
Seattle — San Francisco
8h 14m stop
22:00 — 06:05
QF74
Qantas
San Francisco — Sydney
|
25h 35m including layover |
Find flight
from$418 |
|
12:00 — 07:30
+2 days
|
12:00 — 14:46
AS1144
Alaska Airlines
Seattle — Los Angeles
8h 13m stop
23:10 — 07:30
QF12
Qantas
Los Angeles — Sydney
|
26h 30m including layover |
Find flight
from$411 |
|
12:52 — 06:55
+2 days
|
12:52 — 15:07
UA1482
United Airlines
Seattle — San Francisco
7h 53m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
25h 3m including layover |
Find flight
from$416 |
|
13:45 — 08:20
+2 days
|
13:45 — 14:50
AC8805
Air Canada
Seattle — Vancouver
7h 49m stop
22:40 — 07:20
AC33
Air Canada
Vancouver — Sydney
|
24h 35m including layover |
Find flight
from$386 |
|
14:50 — 06:55
+2 days
|
14:50 — 17:12
UA5482
United Airlines
Seattle — San Francisco
5h 48m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
23h 5m including layover |
Find flight
from$421 |
|
14:55 — 08:20
+2 days
|
15:05 — 16:15
AC8807
Air Canada
Seattle — Vancouver
6h 39m stop
22:40 — 09:35
AC33
Air Canada
Vancouver — Sydney
|
23h 25m including layover |
Find flight
from$386 |
|
15:23 — 06:55
+2 days
|
14:29 — 16:45
UA325
United Airlines
Seattle — San Francisco
5h 21m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
22h 32m including layover |
Find flight
from$416 |
|
15:46 — 06:05
+2 days
|
11:29 — 13:43
AS1284
Alaska Airlines
Seattle — San Francisco
2h 59m stop
22:00 — 06:05
QF74
Qantas
San Francisco — Sydney
|
20h 19m including layover |
Find flight
from$418 |
|
16:30 — 10:25
+2 days
|
16:30 — 19:00
NH117
All Nippon Airways
Seattle — Tokyo
3h 45m stop
22:45 — 09:25
NH879
All Nippon Airways
Tokyo — Sydney
|
23h 55m including layover |
Find flight
from$382 |
|
16:30 — 20:15
+2 days
|
16:30 — 19:00
NH117
All Nippon Airways
Seattle — Tokyo
13h 35m stop
08:35 — 19:15
NH889
All Nippon Airways
Tokyo — Sydney
|
33h 45m including layover |
Find flight
from$384 |
|
17:05 — 07:30
+2 days
|
17:05 — 19:54
AS1464
Alaska Airlines
Seattle — Los Angeles
3h 16m stop
23:10 — 07:30
QF12
Qantas
Los Angeles — Sydney
|
21h 25m including layover |
Find flight
from$414 |
|
17:15 — 07:30
+2 days
|
16:59 — 19:48
QF3738
Qantas
Seattle — Los Angeles
3h 10m stop
23:10 — 07:30
QF12
Qantas
Los Angeles — Sydney
|
21h 15m including layover |
Find flight
from$412 |
|
18:09 — 07:30
+2 days
|
10:12 — 12:58
AS1048
Alaska Airlines
Seattle — Los Angeles
2h 10m stop
23:10 — 07:30
QF12
Qantas
Los Angeles — Sydney
|
20h 21m including layover |
Find flight
from$416 |
|
18:09 — 07:05
+2 days
|
10:12 — 12:58
AS1048
Alaska Airlines
Seattle — Los Angeles
2h 15m stop
22:50 — 07:05
AS6973
Alaska Airlines
Los Angeles — Sydney
|
19h 56m including layover |
Find flight
from$495 |
|
19:15 — 08:20
+2 days
|
19:15 — 20:20
AC8809
Air Canada
Seattle — Vancouver
2h 19m stop
22:40 — 07:20
AC33
Air Canada
Vancouver — Sydney
|
19h 5m including layover |
Find flight
from$386 |
|
19:35 — 06:55
+2 days
|
19:35 — 21:49
UA2632
United Airlines
Seattle — San Francisco
1h 11m stop
23:00 — 06:55
UA863
United Airlines
San Francisco — Sydney
|
18h 20m including layover |
Find flight
from$416 |
|
20:40 — 19:45
+2 days
|
18:25 — 21:35
HA669
Hawaiian Airlines
Seattle — Honolulu
13h 31m stop
12:45 — 19:45
HA451
Hawaiian Airlines
Honolulu — Sydney
|
30h 5m including layover |
Find flight
from$560 |
|
20:47 — 19:45
+2 days
|
18:25 — 21:35
AS8169
Alaska Airlines
Seattle — Honolulu
11h 56m stop
12:45 — 19:45
AS8451
Alaska Airlines
Honolulu — Sydney
|
28h 58m including layover |
Find flight
from$575 |
|
21:15 — 07:30
+3 days
|
21:15 — 23:59
AS1292
Alaska Airlines
Seattle — Los Angeles
22h 11m stop
22:10 — 07:30
QF12
Qantas
Los Angeles — Sydney
|
40h 15m including layover |
Find flight
from$492 |
|
23:35 — 08:00
+3 days
|
22:35 — 04:45
PR125
Philippine Airlines
Seattle — Manila
17h 10m stop
22:20 — 09:30
PR211
Philippine Airlines
Manila — Sydney
|
39h 25m including layover |
Find flight
from$476 |
Flight Information
Below we will explain in detail what the flights cost on the destination from Seattle to Sydney depends on and how to choose the most interesting flight option for you.
Distance between Seattle and Sydney is 12472 miles. Time difference between the cities is 6h. Airplanes depart 00:20 to 23:59 from 3 Seattle airports and arrive 00:20 to 23:59 to 5 Sydney airports. Average flight time is 31h 55m.
- The fastest flight 18h 20m
- Average flight time 31h 55m
- The earliest flight 00:20
- The latest flight 23:59
- Distance 7750 ml
The cheapest months to travel to Sydney are july (from 498 $), june (from 512 $), august (from 514 $).
The most expensive months are january (from 1 372 $), december (from 822 $), november (from 798 $).
What is the lowest airfare Seattle to Sydney?
The cheapest plane ticket found by our users is $373. This airfare is for economy class on one-way NH5391 flight by All Nippon Airways for July 6, 2025 which leaves Seattle-Tacoma Intl in Seattle at 13:45 am and arrives at Sydney Kingsford Smith at 10:25.
Popular Airlines on the Route
The flight Seattle — Sydney is served by 33 regular airlines and 5 low-cost airlines. Most of the flights on this route are operated by Japan Airlines - JAL - 13 departures per week at the price of from $ 564 . And the most expensive tickets are offered by Air New Zealand Limited airline - from $ 4288.
Direct flights
There’re no direct flights on this route. Try flights with stops.
Connecting Flights
There are 767 flights with layovers on the route. The fastest connecting flight is UA2632 by United Airlines takes 18h 20m and the cheapest is NH5391 by All Nippon Airways for $373.
- PR - Philippine Airlinesfrom $476Find
- JL - Japan Airlines - JALfrom $564Find
- FJ - Air Pacificfrom $543Find
- UA - United Airlinesfrom $416Find
- NZ - Air New Zealand Limitedfrom $747Find
- HU - Hainan Airlinesfrom $732Find
- JX - Jambojetfrom $465Find
- BR - EVA Airways Corporationfrom $510Find
- QF - Qantasfrom $412Find
- KE - Korean Airfrom $477Find
- MH - Malaysia Airlinesfrom $1296Find
- WS - WestJetfrom $846Find
Airports
You can fly from Seattle to Sydney from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).
Seattle airports
- Boeing Field International Airport-BFIfrom $897Find
- Seattle-Tacoma Intl-SEAfrom $373Find
- Kenmore Air Harbor SPB-LKEFind
Sydney airports
- Bankstown-BWUFind
- Palm Beach SPB-LBHFind
- Rose Bay-RSEFind
- Kingsford Smith-SYDFind
- Sydney West-SWZFind
Airplanes
There are flights to Sydney from Seattle by 33 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Seattle
You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.
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Top International Destinations from Seattle
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
- from $77Find
- from $70Find
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- from $63Find
- from $66Find
- from $64Find
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- from $64Find
How to book a plane ticket yourself?

- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
- Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
- That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
To find a plane ticket, please select dates.