Cheap flights from Seattle to Sydney

Round-trip
Economy
Seattle (SEA)
Sydney (SYD)
Sat 10/24
Sat 10/31
Any month
Compare vs. momondo |

Flight information for Seattle to Sydney

Find info about flight duration, direct flights, and airports for your flight from Seattle to Sydney
Best Price Found $1,336 The best flight deal from Seattle to Sydney found on momondo in the last 72 hours is $1,336
Fastest flight time 18h 40m The fastest flight from Seattle to Sydney takes 18h 40m.
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)

How to get the cheapest flight ticket 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 ticket for your trip
What is the cheapest month to fly to Sydney?
March
The cheapest time of year to fly to Sydney from Seattle is March. Most expensive is December
What is the cheapest day to fly to Sydney?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Friday
When is the cheapest time to fly to Sydney?
in the afternoon
Seattle to Sydney flights are approximately 11% more expensive in the evening than in the afternoon
What is the 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
When is the cheapest time to book a flight to Sydney?
54 days before
The cheapest time to buy a flight from Seattle to Sydney is approximately 54 days to departure
60
Days before departure
0

Easily compare round-trip flights from Seattle to Sydney

Below you can see the best fares for your round-trip flight 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
Cheapest
Best
Quickest
Multiple Airlines
Feb 18
SEA
Seattle/Tacoma Intl
52h 20m
2 stops
SYD
Sydney Kingsford Smith
Feb 24
SYD
Sydney Kingsford Smith
24h 48m
2 stops
SEA
Seattle/Tacoma Intl
Korean Air
Dec 4
SEA
Seattle/Tacoma Intl
38h 40m
2 stops
SYD
Sydney Kingsford Smith
Feb 17
SYD
Sydney Kingsford Smith
20h 40m
2 stops
SEA
Seattle/Tacoma Intl
Hawaiian Airlines
Jan 18
SEA
Seattle/Tacoma Intl
40h 00m
1 stop
SYD
Sydney Kingsford Smith
Jan 24
SYD
Sydney Kingsford Smith
20h 40m
2 stops
SEA
Seattle/Tacoma Intl

Find the cheapest one-way flights from Seattle to Sydney

If you're looking for one-way flights from Seattle to Sydney, view some of our deals below provided by Fiji Airways
Cheapest
Best
Quickest
Multiple Airlines
Dec 19
SEA
Seattle/Tacoma Intl
57h 20m
3 stops
SYD
Sydney Kingsford Smith
Fiji Airways
Dec 21
SEA
Seattle/Tacoma Intl
57h 15m
3 stops
SYD
Sydney Kingsford Smith
Hawaiian Airlines
Dec 19
SEA
Seattle/Tacoma Intl
18h 10m
1 stop
SYD
Sydney Kingsford Smith

Flights from Seattle to:

  • Round-trip
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First