Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Australia from $405

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Australia departing on 6/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Seattle to Australia

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Australia.
 Logo
2:30 pm - 11:25 amSEA-CNS
27h 55m2 stops
 Logo
12:25 pm - 8:35 pmCNS-SEA
25h 10m2 stops
Tue, Jun 3 - Tue, Jun 10
 Logo
2:30 pm - 11:25 amSEA-CNS
27h 55m2 stops
 Logo
12:25 pm - 10:47 pmCNS-SEA
27h 22m2 stops
Tue, Jun 3 - Tue, Jun 10
Hawaiian Airlines Logo
8:25 am - 7:45 pmSEA-SYD
18h 20m1 stop
Hawaiian Airlines Logo
9:40 pm - 6:00 amSYD-SEA
25h 20m1 stop
$1,114Hawaiian Airlines
Find Deal
Sat, Jun 7 - Sat, Jun 14
Hawaiian Airlines Logo
8:25 am - 7:45 pmSEA-SYD
18h 20m1 stop
Hawaiian Airlines Logo
9:40 pm - 6:00 amSYD-SEA
25h 20m1 stop
$1,147Hawaiian Airlines
Find Deal
Sat, Jun 7 - Sat, Jun 14
Air Canada Logo
10:00 am - 8:20 amSEA-SYD
28h 20m1 stop
Air Canada Logo
10:20 am - 9:21 amSYD-SEA
17h 01m1 stop
$1,154Air Canada
Find Deal
Mon, Oct 13 - Tue, Oct 21
Air Canada Logo
7:15 pm - 7:20 amSEA-SYD
19h 05m1 stop
Air Canada Logo
6:30 am - 9:21 amSYD-SEA
19h 51m2 stops
$1,160Air Canada
Find Deal
Mon, Aug 18 - Mon, Sep 8
United Airlines Logo
5:14 pm - 8:00 amSEA-SYD
20h 46m1 stop
United Airlines Logo
11:20 am - 2:19 pmSYD-SEA
20h 59m1 stop
$1,232United Airlines
Find Deal
Sat, Oct 11 - Fri, Oct 24
United Airlines Logo
10:26 am - 8:00 amSEA-SYD
27h 34m2 stops
United Airlines Logo
10:30 am - 3:31 pmSYD-SEA
23h 01m2 stops
$1,237United Airlines
Find Deal
Sat, Oct 11 - Tue, Oct 21
Delta Logo
12:00 pm - 7:35 amSEA-SYD
25h 35m1 stop
Delta Logo
10:25 am - 4:59 pmSYD-SEA
24h 34m1 stop
$1,242Delta
Find Deal
Fri, Oct 10 - Sat, Oct 25
Delta Logo
11:25 am - 7:35 amSEA-SYD
26h 10m2 stops
Delta Logo
10:25 am - 6:30 pmSYD-SEA
26h 05m2 stops
$1,246Delta
Find Deal
Fri, Oct 10 - Sat, Oct 25

American Airlines flights from Seattle to Australia

Our best American Airlines deals on Seattle to Australia flight tickets
American Airlines
Jun 18
SEA11:24 amSeattle/Tacoma Intl
27h 06m
2 stops
SYD7:30 amSydney Kingsford Smith
Jul 10
SYD5:45 pmSydney Kingsford Smith
37h 15m
1 stop
SEA2:00 pmSeattle/Tacoma Intl
American Airlines
Jun 25
SEA2:40 pmSeattle/Tacoma Intl
23h 50m
1 stop
SYD7:30 amSydney Kingsford Smith
Jul 8
SYD9:10 amSydney Kingsford Smith
22h 44m
2 stops
SEA2:54 pmSeattle/Tacoma Intl
American Airlines
May 2
SEA2:58 pmSeattle/Tacoma Intl
23h 07m
2 stops
SYD7:05 amSydney Kingsford Smith
May 15
SYD9:10 amSydney Kingsford Smith
22h 43m
2 stops
SEA2:53 pmSeattle/Tacoma Intl

Philippine Airlines flights from Seattle to Australia

Our best Philippine Airlines deals on Seattle to Australia flight tickets
Philippine Airlines
Oct 12
SEA11:35 pmSeattle/Tacoma Intl
39h 25m
1 stop
SYD9:00 amSydney Kingsford Smith
Oct 26
SYD11:15 amSydney Kingsford Smith
26h 20m
1 stop
SEA7:35 pmSeattle/Tacoma Intl
Philippine Airlines
Sep 7
SEA11:35 pmSeattle/Tacoma Intl
39h 25m
1 stop
SYD8:00 amSydney Kingsford Smith
Sep 14
SYD10:10 amSydney Kingsford Smith
26h 05m
1 stop
SEA7:15 pmSeattle/Tacoma Intl
Philippine Airlines
Oct 12
SEA11:35 pmSeattle/Tacoma Intl
37h 55m
1 stop
MEL7:30 amMelbourne
Oct 29
MEL9:00 amMelbourne
28h 35m
1 stop
SEA7:35 pmSeattle/Tacoma Intl

See travel insights to Australia from

How to get the cheapest flight ticket from Seattle to Australia

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 Australia?

The month of March is, on average, the cheapest month to fly to Australia from Seattle, with most prices found around $1,030. If you aren’t able to travel during the month of March, then book flights to Australia from Seattle during February instead. Flights to Australia in February, while not as cheap as those in March, still average around $1,043.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Seattle to Australia is on a Tuesday. Travelers who choose to depart for Australia on a Tuesday will often find tickets for as low as $1,078. On the other hand, Thursday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,156.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,078 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,152 on average. Flights to Australia from Seattle in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Australia from Seattle when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,141 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Seattle for as low as $1,026 on momondo.

Cheap Seattle to Australia flight deals and tips

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

Best Price Found

$405

Fastest flight time

18h 20m

Direct flights

None

Airports in Australia

8 airports
The best one-way flight to Australia from Seattle in the past 72 hours is $405. The best round-trip flight deal from Seattle to Australia found on momondo in the last 72 hours is $833.
The fastest flight from Seattle to Australia takes 18h 20m
There are no direct flights from Seattle to Australia. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Melbourne Airport, Seattle/Tacoma Intl Airport - Sydney Kingsford Smith Airport and Seattle/Tacoma Intl Airport - Melbourne Avalon Airport.
There are 8 airports near Australia: Melbourne Avalon (AVV), Canberra (CBR), Melbourne (MEL), Brisbane (BNE), Darwin (DRW), Cairns (CNS), Coolangatta Gold Coast (OOL), Sydney Kingsford Smith (SYD)

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Australia?

    Prices for flights from Seattle/Tacoma Intl Airport to Australia are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Australia?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Australia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Best airlines flying from Seattle to Australia

Compare and see reviews for airlines that fly from Seattle to Australia with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $759Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
American AirlinesPriceFrom $807Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $834Free CancellationRating
7.0
9,192 reviews
Search Air Canada flights
DeltaPriceFrom $853Free CancellationRating
8.0
7,920 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $858Free CancellationRating
7.9
2,393 reviews
Search Hawaiian Airlines flights
ANAPriceFrom $861Free CancellationRating
8.3
848 reviews
Search ANA flights
Qantas AirwaysPriceFrom $866Free CancellationRating
7.5
826 reviews
Search Qantas Airways flights
Alaska AirlinesPriceFrom $911Free CancellationRating
8.0
9,911 reviews
Search Alaska Airlines flights
Singapore AirlinesPriceFrom $1,199Free CancellationRating
8.1
1,290 reviews
Search Singapore Airlines flights
Qatar AirwaysPriceFrom $1,315Free CancellationRating
7.4
3,561 reviews
Search Qatar Airways flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Australia. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Seattle to Australia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Seattle and Australia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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


An easier way to manage your Australia trip

We make it super easy to schedule, organize 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.
1 adult
From?
To?
Mon 4/28
Mon 5/5

Find better results for your trip to Australia

Popular cities in Australia

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