United Airlines Seattle to Sydney Flights

Return flight: Sydney – Seattle

Cheapflightsplus.com will find cheap United Airlines flights from Seattle to Sydney. Compare airline ticket prices and book air tickets starting from $672 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Sydney by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in november: one-way - $672, two-way – $1152.
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Below is a detailed 2024 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
11:59 pm — 7:00 am
+3 days
11:59 pm — 6:14 am UA2379 United Airlines
Seattle — Houston
14h 11m stop
8:25 pm — 7:00 am UA101 United Airlines
Houston — Sydney
36h 1m
including layover
Find flight
from$1811
3:25 pm — 9:15 am
+2 days
3:25 pm — 5:44 pm UA589 United Airlines
Seattle — San Francisco
5h 11m stop
10:55 pm — 9:15 am UA863 United Airlines
San Francisco — Sydney
22h 50m
including layover
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from$672
4:23 pm — 6:10 am
+2 days
4:23 pm — 6:40 pm UA737 United Airlines
Seattle — San Francisco
1h 35m stop
8:15 pm — 6:10 am QF74 Qantas
San Francisco — Sydney
18h 47m
including layover
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from$2118
4:58 pm — 6:20 am
+2 days
4:58 pm — 7:10 pm UA2482 United Airlines
Seattle — San Francisco
1h stop
8:10 pm — 6:20 am UA829 United Airlines
San Francisco — Sydney
18h 22m
including layover
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from$681
6:13 pm — 9:15 am
+2 days
12:55 pm — 3:12 pm UA737 United Airlines
Seattle — San Francisco
2h 23m stop
10:55 pm — 9:15 am UA863 United Airlines
San Francisco — Sydney
20h 2m
including layover
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from$674
9:20 am — 9:15 am
+2 days
9:20 am — 11:39 am UA1960 United Airlines
Seattle — San Francisco
11h 16m stop
10:55 pm — 9:15 am UA863 United Airlines
San Francisco — Sydney
28h 55m
including layover
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from$672
12:35 pm — 9:15 am
+2 days
12:35 pm — 4:17 pm UA1483 United Airlines
Seattle — Denver
3h 3m stop
7:20 pm — 9:09 pm UA281 United Airlines
Denver — San Francisco
1h 46m stop
10:55 pm — 9:15 am UA863 United Airlines
San Francisco — Sydney
25h 40m
including layover
Find flight
from$672
12:35 pm — 9:15 am
+2 days
12:35 pm — 4:17 pm UA1483 United Airlines
Seattle — Denver
1h 3m stop
5:20 pm — 7:11 pm UA1076 United Airlines
Denver — San Francisco
3h 44m stop
10:55 pm — 9:15 am UA863 United Airlines
San Francisco — Sydney
25h 40m
including layover
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from$672
3:18 pm — 9:05 am
+2 days
3:18 pm — 7:00 pm UA757 United Airlines
Seattle — Denver
45m stop
7:45 pm — 9:21 pm UA1368 United Airlines
Denver — Los Angeles
1h 19m stop
10:40 pm — 9:05 am UA839 United Airlines
Los Angeles — Sydney
22h 47m
including layover
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from$674
5:00 am — 7:00 am
+2 days
5:00 am — 8:43 am UA2269 United Airlines
Seattle — Denver
57m stop
9:40 am — 1:11 pm UA2676 United Airlines
Denver — Houston
7h 14m stop
8:25 pm — 7:00 am UA101 United Airlines
Houston — Sydney
31h
including layover
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from$677
5:00 am — 9:05 am
+2 days
5:00 am — 8:43 am UA2269 United Airlines
Seattle — Denver
2h 44m stop
11:27 am — 1:03 pm UA1013 United Airlines
Denver — Los Angeles
9h 37m stop
10:40 pm — 9:05 am UA839 United Airlines
Los Angeles — Sydney
33h 5m
including layover
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from$677
6:15 am — 7:00 am
+2 days
6:15 am — 9:02 am UA1571 United Airlines
Seattle — Los Angeles
1h 13m stop
10:15 am — 3:36 pm UA1571 United Airlines
Los Angeles — Houston
4h 49m stop
8:25 pm — 7:00 am UA101 United Airlines
Houston — Sydney
29h 45m
including layover
Find flight
from$677
7:00 am — 7:00 am
+2 days
7:00 am — 1:06 pm UA1373 United Airlines
Seattle — Chicago
56m stop
2:02 pm — 5:04 pm UA1373 United Airlines
Chicago — Houston
3h 21m stop
8:25 pm — 7:00 am UA101 United Airlines
Houston — Sydney
29h
including layover
Find flight
from$672
7:00 am — 7:00 am
+2 days
7:00 am — 1:06 pm UA1373 United Airlines
Seattle — Chicago
2h 34m stop
3:40 pm — 6:43 pm UA2678 United Airlines
Chicago — Houston
1h 42m stop
8:25 pm — 7:00 am UA101 United Airlines
Houston — Sydney
29h
including layover
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from$672
9:00 am — 7:00 am
+2 days
9:00 am — 12:43 pm UA1829 United Airlines
Seattle — Denver
1h 2m stop
1:45 pm — 5:16 pm UA271 United Airlines
Denver — Houston
3h 9m stop
8:25 pm — 7:00 am UA101 United Airlines
Houston — Sydney
27h
including layover
Find flight
from$672
*Departure and arrival times are local. Last updated on 11/17/2024

Flight Information

There are 48 flights by United Airlines from Seattle to Sydney every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Kingsford Smith, Bankstown, Palm Beach SPB, Rose Bay, Sydney West.

Departures start from 11:59 pm to 9:20 am. Nonstop flight is 18h 22m. The time difference between Seattle and Sydney is 6h.

  • The fastest flight 18h 22m
  • Average flight time 29h 5m
  • The earliest flight 11:59 pm
  • The latest flight 9:20 am
  • Distance 7750 ml

The cheapest months for traveling to Sydney are november (from 668 $), february (from 672 $), january (from 805 $).

The most expensive and popular months are december (from 1 613 $), january (from 805 $), february (from 672 $).

The cheapest flight by United Airlines that our users were able to find is $672. This airfare is economy class on one-way UA1829 flight for February 1, 2025 leaving Seattle-Tacoma Intl in Seattle at 9:00 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 31 airline carriers between Seattle and Sydney. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Sydney.

Nonstop flights

There’re no direct flights on this route. Try flights with stops.

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

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  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
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  • 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.

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