Which airports can I use when flying from Seattle to Sydney?

Flights from Seattle to Sydney usually depart from Seattle/Tacoma Intl (SEA) and arrive at Sydney (YQY).

How long is a flight from Seattle to Sydney?

A nonstop flight from Seattle to Sydney takes 0h 00m, covering 2,863 miles.

Do I need a passport to fly from Seattle to Sydney?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Seattle to Sydney changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $908 to $1,427. That means the highest observed fare was about 57% higher than the lowest one.

How are flight prices from Seattle to Sydney looking right now?

One-way fares from Seattle to Sydney are currently higher than usual. Average one-way flight prices are about $531, which is 7% above the typical average for this route.

What is the time difference between Seattle and Sydney?

Sydney is 4 hours ahead of Seattle (Atlantic Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What is the cheapest airline to fly from Seattle to Sydney?

Air Canada ($908) offered the cheapest round-trip ticket from Seattle to Sydney in the last 5 days.

$474 CHEAP FLIGHTS from Seattle to Sydney (SEA - YQY)

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Cheapest round-trip

$908

Typical prices: $879-$1,611

Air Canada

Tue 10/30Sat 11/3

SEA - YQY • 2 stops

Cheapest one-way

$474

Typical prices: $492-$492

Air Canada

Tue 10/9

SEA - YQY • 2 stops

Nonstop flights

Not available

There are currently no direct flights between Seattle and Sydney. You'll need to take a connecting flight to reach the destination.

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Flight Deals

Cheap Flights from Seattle to Sydney (SEA-YQY)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Seattle to Sydney

Fri, Oct 30 - Tue, Nov 3

8:40 am - 12:26 amSEA Seattle/Tacoma Intl-YQY Sydney

11h 46m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:45 am - 9:57 pmYQY Sydney-SEA Seattle/Tacoma Intl

20h 12m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$908Air Canada

Fri, Oct 30 - Tue, Nov 3

8:40 am - 12:26 amSEA Seattle/Tacoma Intl-YQY Sydney

11h 46m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:45 am - 9:57 pmYQY Sydney-SEA Seattle/Tacoma Intl

20h 12m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$918Air Canada

Fri, Oct 30 - Tue, Nov 3

8:40 am - 12:26 amSEA Seattle/Tacoma Intl-YQY Sydney

11h 46m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

12:10 pm - 8:59 pmYQY Sydney-SEA Seattle/Tacoma Intl

12h 49m1 stop Toronto Pearson Intl

$948Air Canada

Fri, Oct 30 - Tue, Nov 3

8:40 am - 12:26 amSEA Seattle/Tacoma Intl-YQY Sydney

11h 46m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

12:10 pm - 8:59 pmYQY Sydney-SEA Seattle/Tacoma Intl

12h 49m1 stop Toronto Pearson Intl

$995Air Canada

Tue, Sep 29 - Sat, Oct 3

8:00 am - 12:45 amSEA Seattle/Tacoma Intl-YQY Sydney

12h 45m1 stop Toronto Pearson Intl

5:05 am - 6:32 pmYQY Sydney-SEA Seattle/Tacoma Intl

17h 27m2 stops Toronto Pearson Intl Vancouver Intl

$1,076Air Canada

Tue, Sep 29 - Sat, Oct 3

8:00 am - 12:45 amSEA Seattle/Tacoma Intl-YQY Sydney

12h 45m1 stop Toronto Pearson Intl

5:05 am - 9:04 pmYQY Sydney-SEA Seattle/Tacoma Intl

19h 59m1 stop Toronto Pearson Intl

$1,082Air Canada

Tue, Sep 29 - Sat, Oct 3

8:00 am - 12:45 amSEA Seattle/Tacoma Intl-YQY Sydney

12h 45m1 stop Toronto Pearson Intl

5:05 am - 10:47 pmYQY Sydney-SEA Seattle/Tacoma Intl

21h 42m2 stops Toronto Pearson Intl Vancouver Intl

$1,082Air Canada

Fri, Oct 9 - Sun, Oct 18

7:15 pm - 12:45 amSEA Seattle/Tacoma Intl-YQY Sydney

25h 30m2 stops Vancouver Intl Toronto Pearson Intl

5:05 am - 10:47 pmYQY Sydney-SEA Seattle/Tacoma Intl

21h 42m2 stops Toronto Pearson Intl Vancouver Intl

$1,101Air Canada

Tue, Sep 29 - Sat, Oct 3

8:00 am - 12:45 amSEA Seattle/Tacoma Intl-YQY Sydney

12h 45m1 stop Toronto Pearson Intl

5:05 am - 9:04 pmYQY Sydney-SEA Seattle/Tacoma Intl

19h 59m1 stop Toronto Pearson Intl

$1,117Air Canada

Booking Insights

Price, demand and travel trends for Seattle to Sydney flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Sydney with more confidence.

Prices

Airlines

How much is a round-trip flight from Seattle to Sydney?

Round-trip flights from Seattle to Sydney start at $908. Prices are typical for this route right now, with typical round-trip fares ranging from $879 to $1,611. The lowest price found in the past 5 days was $908 on Air Canada.

Find deals

Cheapest flight	$474

Flight from Seattle to Sydney

When to book flights from Seattle to Sydney

Are your dates flexible? Find out the best times to travel from Seattle to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Seattle to Sydney?
Flights from Seattle to Sydney usually depart from Seattle/Tacoma Intl (SEA) and arrive at Sydney (YQY).
How long is a flight from Seattle to Sydney?
A nonstop flight from Seattle to Sydney takes 0h 00m, covering 2,863 miles.
Do I need a passport to fly from Seattle to Sydney?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Seattle to Sydney changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $908 to $1,427. That means the highest observed fare was about 57% higher than the lowest one.
How are flight prices from Seattle to Sydney looking right now?
One-way fares from Seattle to Sydney are currently higher than usual. Average one-way flight prices are about $531, which is 7% above the typical average for this route.
What is the time difference between Seattle and Sydney?
Sydney is 4 hours ahead of Seattle (Atlantic Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Everything you need to know for your flight from Seattle to Sydney

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Seattle (SEA)

Sydney (YQY)

SEA - YQY

$474 Find Cheap Flights from Seattle to Sydney - Compare and Save

Everything you should know

Cheap Flights from Seattle to Sydney (SEA-YQY)

Recent round-trip flight deals from Seattle to Sydney

Recent one-way flight deals from Seattle to Sydney

Price, demand and travel trends for Seattle to Sydney flights

How much is a round-trip flight from Seattle to Sydney?

What is the cheapest airline to fly from Seattle to Sydney?

Key details for Seattle to Sydney flights

Cheapest flight

When to book flights from Seattle to Sydney

Your Seattle to Sydney flight questions, answered

Everything you need to know for your flight from Seattle to Sydney

Information on your arrival and departure airports

Cabin class types available on flights from Seattle to Sydney

Complete your trip to Sydney with a hotel stay or car rental

Find direct flights to and from Seattle and Sydney

Flights to other popular destinations

Flights from domestic origins to Sydney

Choose which airport to fly into in Sydney