Which airlines fly to Seattle?

Air Canada, United Airlines and Qantas Airways are the top three most popular airlines that fly to Seattle from Sydney according to our data. Air Canada is the first choice among our users, with 37% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 10 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular for stopovers for flights between Sydney and Seattle?

Vancouver (YVR) was the most common stop: 51% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from Sydney to Seattle?

Flights via Los Angeles (LAX) offer the lowest average return price of $1,254.

Which stopover airport has the shortest travel time from Sydney to Seattle?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 17h 06m.

What is the cheapest airline that flies from Sydney Kingsford Smith to Seattle/Tacoma Intl?

Qantas Airways and Delta are the most popular carriers operating from Sydney Kingsford Smith to Seattle/Tacoma Intl

Which stopover airport has the shortest connection time from Sydney to Seattle?

Honolulu (HNL) has the shortest average stopover time for this route: 1h 45m.

When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport is 10 as of March 2026.

How old do you have to be to fly from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$738 Cheap Flights from Sydney to Seattle in 2026

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Sydney to Seattle

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:10 - 22:55

SYD

SEA

30h 45m

1 stop

07:00 - 07:05

SEA

SYD

31h 05m

1 stop

$1,235American Airlines

Mon, 13 Jul - Tue, 28 Jul

09:10 - 13:57

SYD

SEA

21h 47m

1 stop

07:00 - 07:05

SEA

SYD

31h 05m

1 stop

$1,237American Airlines

Wed, 3 Jun - Sun, 28 Jun

09:10 - 16:44

SYD

SEA

24h 34m

2 stops

14:03 - 07:05

SEA

SYD

24h 02m

2 stops

$1,238American Airlines

Wed, 3 Jun - Wed, 17 Jun

09:10 - 13:42

SYD

SEA

21h 32m

1 stop

15:20 - 07:05

SEA

SYD

22h 45m

2 stops

$1,266American Airlines

Sat, 13 Jun - Wed, 17 Jun

09:10 - 21:52

SYD

SEA

29h 42m

1 stop

07:00 - 07:05

SEA

SYD

31h 05m

1 stop

$1,268American Airlines

Sat, 13 Jun - Wed, 17 Jun

09:10 - 22:58

SYD

SEA

30h 48m

1 stop

18:40 - 07:05

SEA

SYD

19h 25m

1 stop

$1,299American Airlines

Fri, 17 Apr - Fri, 1 May

17:50 - 22:44

SYD

SEA

21h 54m

1 stop

17:03 - 07:30

SEA

SYD

21h 27m

1 stop

$1,302Qantas Airways

Mon, 8 Jun - Sun, 14 Jun

09:10 - 13:57

SYD

SEA

21h 47m

1 stop

14:40 - 07:05

SEA

SYD

23h 25m

1 stop

$1,303American Airlines

Tue, 9 Jun - Mon, 15 Jun

09:10 - 19:50

SYD

SEA

27h 40m

2 stops

15:24 - 07:05

SEA

SYD

22h 41m

2 stops

$1,305American Airlines

Mon, 13 Jul - Tue, 28 Jul

11:20 - 17:52

SYD

SEA

24h 32m

2 stops

15:00 - 07:05

SEA

SYD

23h 05m

2 stops

$1,306American Airlines

Mon, 23 Mar - Sun, 5 Apr

British Airways flights from Sydney to Seattle

Our best British Airways deals on Sydney to Seattle flight tickets

British Airways

18 Apr

SYD09:10Sydney Kingsford Smith

25h 57m

1 stop

SEA18:07Seattle/Tacoma Intl

25 Apr

SEA06:30Seattle/Tacoma Intl

31h 35m

2 stops

SYD07:05Sydney Kingsford Smith

$1,367

British Airways

22 Mar

SYD17:45Sydney Kingsford Smith

19h 08m

1 stop

SEA18:53Seattle/Tacoma Intl

26 Mar

SEA05:30Seattle/Tacoma Intl

31h 55m

2 stops

SYD07:25Sydney Kingsford Smith

$1,394

American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets

American Airlines

13 July

SYD09:10Sydney Kingsford Smith

30h 45m

1 stop

SEA22:55Seattle/Tacoma Intl

28 July

SEA07:00Seattle/Tacoma Intl

31h 05m

1 stop

SYD07:05Sydney Kingsford Smith

$1,235

American Airlines

3 June

SYD09:10Sydney Kingsford Smith

21h 47m

1 stop

SEA13:57Seattle/Tacoma Intl

28 June

SEA07:00Seattle/Tacoma Intl

31h 05m

1 stop

SYD07:05Sydney Kingsford Smith

$1,236

American Airlines

3 June

SYD09:10Sydney Kingsford Smith

24h 34m

2 stops

SEA16:44Seattle/Tacoma Intl

17 June

SEA14:03Seattle/Tacoma Intl

24h 02m

2 stops

SYD07:05Sydney Kingsford Smith

$1,238

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 13/7

09:10-22:55

1 stop30h 45m

Seattle/Tacoma Intl

Tue 28/7

07:00-07:05

1 stop31h 05m

$1,235

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 3/6

09:10-13:57

1 stop21h 47m

Seattle/Tacoma Intl

Sun 28/6

07:00-07:05

1 stop31h 05m

$1,236

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 3/6

09:10-16:44

2 stops24h 34m

Seattle/Tacoma Intl

Wed 17/6

14:03-07:05

2 stops24h 02m

$1,238

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 13/6

09:10-13:42

1 stop21h 32m

Seattle/Tacoma Intl

Wed 17/6

15:20-07:05

2 stops22h 45m

$1,266

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 13/6

09:10-21:52

1 stop29h 42m

Seattle/Tacoma Intl

Wed 17/6

07:00-07:05

1 stop31h 05m

$1,268

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 17/4

09:10-22:58

1 stop30h 48m

Seattle/Tacoma Intl

Fri 1/5

18:40-07:05

1 stop19h 25m

$1,299

Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 8/6

17:50-22:44

1 stop21h 54m

Seattle/Tacoma Intl

Sun 14/6

17:03-07:30

1 stop21h 27m

$1,302

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 9/6

09:10-13:57

1 stop21h 47m

Seattle/Tacoma Intl

Mon 15/6

14:40-07:05

1 stop23h 25m

$1,303

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 13/7

09:10-19:50

2 stops27h 40m

Seattle/Tacoma Intl

Tue 28/7

15:24-07:05

2 stops22h 41m

$1,305

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 23/3

11:20-17:52

2 stops24h 32m

Seattle/Tacoma Intl

Sun 5/4

15:00-07:05

2 stops23h 05m

$1,306

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sydney to Seattle

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

Prices

Airlines

Stopovers

What is the cheapest month to fly to Seattle?

The month of August is, on average, the cheapest month to fly to Seattle from Sydney, with most prices found around $1,273. If you are unable to visit Seattle during the month of August, then departing from Sydney during the month September is also very affordable. Most momondo users find prices during this month for around $1,312.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $1,507 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Sydney for as low as $1,258 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 2% on your flight if you consider stops on a Sydney to Seattle flight.

How have Sydney to Seattle flight prices changed over time?

As of March 2026, prices for Sydney to Seattle flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Sydney to Seattle (SYD to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Seattle

Fastest flight time	19h 38m
Direct flights	None

The fastest flight from Sydney to Seattle takes 19h 38m

There are no direct flights from Sydney to Seattle. There are no popular flight routes from Sydney to Seattle.

Search flight deals

How far is Sydney Kingsford Smith to Seattle/Tacoma Intl by plane?
There are 12462.2 km between Sydney Kingsford Smith and Seattle/Tacoma Intl. A reasonable flight in good conditions will take 19h 38m.
When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport is 10 as of March 2026.
How old do you have to be to fly from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sydney to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Sydney to Seattle is Air Canada (31% of total bookings). The next most popular airlines are United Airlines (26%), Qantas Airways (15%), and Hawaiian Airlines (13%).

Best airlines flying from Sydney to Seattle

Compare and see reviews for airlines that fly from Sydney to Seattle with momondo

Airline	Rating	Free cancellation	Price
Delta	PriceFrom $690	Free cancellation	Rating 7.9 8,269 reviews	Search Delta flights
Virgin Australia	PriceFrom $1,069	Free cancellation	Rating 7.6 445 reviews	Search Virgin Australia flights
Air Canada	PriceFrom $1,079	Free cancellation	Rating 7.1 10,796 reviews	Search Air Canada flights
Alaska Airlines	PriceFrom $1,114	Free cancellation	Rating 8.0 11,996 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $1,130	Free cancellation	Rating 7.4 9,406 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $1,139	Free cancellation	Rating 7.5 1,002 reviews	Search Qantas Airways flights
Hawaiian Airlines	PriceFrom $1,154	Free cancellation	Rating 7.8 2,836 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $1,254	Free cancellation	Rating 7.1 11,399 reviews	Search American Airlines flights
ANA	PriceFrom $1,304	Free cancellation	Rating 8.4 1,116 reviews	Search ANA flights
Asiana Airlines	PriceFrom $1,380	Free cancellation	Rating 8.1 504 reviews	Search Asiana Airlines flights

Leavenworth

SeaTac

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sydney to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Sydney to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Sydney which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sydney to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Sydney to Seattle.

I’m not ready to book a flight from Sydney to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Sydney and alert you when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 8/4

Wed 15/4

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Sydney

Complete your trip

Feeling lucky

Airports servicing Washington

Spokane Airport

Cheap flights from Sydney to Seattle from $738

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Seattle departing on 22/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Sydney to Seattle

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

British Airways flights from Sydney to Seattle

Our best British Airways deals on Sydney to Seattle flight tickets

American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Sydney to Seattle that are best for you.

See travel insights to Seattle from

How to get the cheapest flight ticket from Sydney to Seattle

What is the cheapest month to fly to Seattle?

How far in advance should I book a flight to Seattle?

Can stopping save me money on Sydney to Seattle flights?

How have Sydney to Seattle flight prices changed over time?

What is the cheapest airline that flies from Sydney Kingsford Smith to Seattle/Tacoma Intl?

Which airlines fly to Seattle?

Which airport is the most popular for stopovers for flights between Sydney and Seattle?

Which stopover airport offers the lowest fares from Sydney to Seattle?

Which stopover airport has the shortest travel time from Sydney to Seattle?

Which stopover airport has the shortest connection time from Sydney to Seattle?

When to book flights from Sydney to Seattle

Cheap Sydney to Seattle (SYD to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Seattle

Fastest flight time

Direct flights

Best airlines flying from Sydney to Seattle

Compare and see reviews for airlines that fly from Sydney to Seattle with momondo

Travelling to a place near Seattle?

Why use momondo?

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington

Fly your favourite airline to Seattle

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seattle

List of cabin classes available on flights landing in Seattle. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Sydney

According to popular flight searches on momondo this year

Complete your trip to Seattle

Explore popular destinations other users love

According to popular flight searches on momondo this year