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Flights from Seattle to Sydney

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Seattle to Sydney flight comparison made easy

Below you can see the best fares for your route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Sydney by changing tabs
Quickest
Cheapest
Multiple Airlines
Multiple Airlines
SEA
01:00
Seattle/Tacoma Intl airport
34h 55m
2 Stops
04:55
+2
SYD
Sydney Kingsford Smith airport
Multiple Airlines
SYD
01:10
Sydney Kingsford Smith airport
41h 30m
2 Stops
00:40
+1
SEA
Seattle/Tacoma Intl airport
1,101 AUD
Multiple Airlines
Multiple Airlines
SEA
02:35
Seattle/Tacoma Intl airport
33h 20m
2 Stops
04:55
+2
SYD
Sydney Kingsford Smith airport
Multiple Airlines
SYD
23:10
Sydney Kingsford Smith airport
25h 07m
2 Stops
07:17
+1
SEA
Seattle/Tacoma Intl airport
1,108 AUD
Multiple Airlines
Multiple Airlines
SEA
05:25
Seattle/Tacoma Intl airport
30h 30m
2 Stops
04:55
+2
SYD
Sydney Kingsford Smith airport
Multiple Airlines
SYD
23:10
Sydney Kingsford Smith airport
27h 29m
3 Stops
09:39
+1
SEA
Seattle/Tacoma Intl airport
1,128 AUD
Hawaiian Airlines
Hawaiian Airlines
SEA
02:00
Seattle/Tacoma Intl airport
17h 45m
1 Stop
12:45
+1
SYD
Sydney Kingsford Smith airport
Hawaiian Airlines
SYD
07:40
Sydney Kingsford Smith airport
17h 05m
1 Stop
07:45
SEA
Seattle/Tacoma Intl airport
1,726 AUD
Qantas Airways
Qantas Airways
SEA
11:20
Seattle/Tacoma Intl airport
18h 45m
1 Stop
23:05
+1
SYD
Sydney Kingsford Smith airport
Qantas Airways
SYD
03:40
Sydney Kingsford Smith airport
18h 50m
1 Stop
05:30
SEA
Seattle/Tacoma Intl airport
1,705 AUD
Japan Airlines
Japan Airlines
SEA
07:15
Seattle/Tacoma Intl airport
22h 55m
1 Stop
23:10
+1
SYD
Sydney Kingsford Smith airport
Japan Airlines
SYD
18:15
Sydney Kingsford Smith airport
20h 00m
1 Stop
21:15
SEA
Seattle/Tacoma Intl airport
1,533 AUD

How to get the cheapest flight from Seattle to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight for your trip
CHEAPEST MONTH TO FLY
March
The cheapest time of year to fly to Sydney from Seattle is March. The most expensive is December.
CHEAPEST DAY TO FLY
Thursday
The cheapest day of the week is usually Thursday. The most expensive is usually Friday.
CHEAPEST TIME TO FLY
at midday
Seattle to Sydney flights are approximately 34% more expensive in the morning than at midday
CHEAPEST AIRLINE
Alaska Airlines
Alaska Airlines, United Airlines, and ANA are the most popular carriers operating from Seattle to Sydney
CHEAPEST ROUTE
Seattle/Tacoma Intl - Sydney Kingsford Smith
Fly from Seattle/Tacoma Intl to Sydney Kingsford Smith for the best Seattle - Sydney flight prices
SEA
Seattle/Tacoma Intl
SYD
Sydney Kingsford Smith
CHEAPEST TIME TO BOOK
46 days before
The cheapest time to buy a flight from Seattle to Sydney is approximately 46 days before departure
60
Days before departure
0

Flight information for Seattle to Sydney

Find info about flight duration, direct flights, and airports for your flight from Seattle to Sydney
Fastest flight time
21h 14m
The fastest flight from Seattle to Sydney takes 21h 14m.
Direct flights
None
There are no direct flights from Seattle to Sydney. Popular non-direct route for this connection is Seattle/Tacoma Intl - Sydney Kingsford Smith.
Airports in Sydney
1 airport
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

Alternative routes for Seattle to Sydney

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times

Cost comparison between Seattle and Sydney

Compare the costs of everyday items in Seattle and Sydney
Food
Inexpensive restaurant
21 AUD
Seattle
18 AUD
Sydney
Fast food
McDonald's meal
12.26 AUD
Seattle
10.45 AUD
Sydney
Soft drink
0.33 litre
2.71 AUD
Seattle
3.36 AUD
Sydney
Coffee
Cappuccino
5.96 AUD
Seattle
3.95 AUD
Sydney
Public transport
One-way ticket
3.86 AUD
Seattle
4.07 AUD
Sydney

Flights from Seattle to:

  • Sydney Kingsford Smith
  • New South Wales
  • Australia
  • South Pacific

Flights to Sydney from: