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Cheap flights from Seattle to Australia from $385

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 4/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Australia

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Australia that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Australia.

Cheap last minute flights

Planning a quick getaway from Seattle to Australia? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Australia, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Australia

Find recent round-trip train or bus tickets from Seattle to Australia.

All round-trip flight deals to Australia

The cheapest plane tickets to Australia found on KAYAK recently.
6:50 pm - 3:35 pmSEA-MEL
27h 45m1 stop
3:45 pm - 6:54 pmMEL-SEA
20h 09m1 stop
tir., apr. 8 - ons., apr. 23
6:31 pm - 3:35 pmSEA-SYD
26h 04m1 stop
5:25 pm - 9:20 pmSYD-SEA
22h 55m1 stop
tor., feb. 27 - fre., mar. 7
4:05 pm - 4:20 pmSEA-MEL
29h 15m1 stop
4:50 pm - 8:35 pmMEL-SEA
22h 45m1 stop
lør., feb. 8 - ons., mar. 5
7:05 pm - 8:35 amSEA-SYD
19h 30m1 stop
10:20 am - 6:25 pmSYD-SEA
26h 05m1 stop
$874Air Canada
Find Deal
man., mar. 10 - søn., mar. 16
10:35 am - 9:35 amSEA-SYD
28h 00m1 stop
11:20 am - 9:57 amSYD-SEA
17h 37m1 stop
$876Air Canada
Find Deal
søn., feb. 9 - man., feb. 17
5:59 pm - 7:45 amSEA-BNE
19h 46m1 stop
11:30 am - 3:00 pmBNE-SEA
21h 30m1 stop
$1,001Delta
Find Deal
ons., feb. 5 - ons., feb. 12
9:55 am - 7:45 amSEA-BNE
27h 50m2 stops
11:30 am - 12:50 amBNE-SEA
31h 20m2 stops
$1,005Delta
Find Deal
ons., feb. 5 - ons., feb. 12
7:00 am - 7:00 amSEA-SYD
29h 00m2 stops
4:15 pm - 6:29 pmSYD-SEA
21h 14m1 stop
$1,134United Airlines
Find Deal
ons., feb. 5 - tir., mar. 4
12:50 pm - 9:15 amSEA-SYD
25h 25m1 stop
11:20 am - 1:57 pmSYD-SEA
21h 37m1 stop
$1,136United Airlines
Find Deal
ons., feb. 5 - tir., mar. 4
7:00 am - 7:45 pmSEA-SYD
17h 45m1 stop
9:40 pm - 9:00 pmSYD-SEA
18h 20m1 stop
$1,138Hawaiian Airlines
Find Deal
tor., feb. 20 - lør., mar. 8
6:40 pm - 4:35 pmSEA-MEL
27h 55m1 stop
tir., apr. 1
1:47 pm - 4:35 pmSEA-MEL
32h 48m2 stops
tir., apr. 1
9:40 pm - 7:45 amSEA-BNE
40h 05m2 stops
$555Delta
Find Deal
tir., feb. 4
1:30 pm - 6:45 amSEA-BNE
24h 15m2 stops
$556Delta
Find Deal
ons., mar. 26
5:40 pm - 9:15 amSEA-SYD
21h 35m1 stop
$591United Airlines
Find Deal
ons., mar. 26
7:05 pm - 8:35 amSEA-SYD
19h 30m1 stop
$593Air Canada
Find Deal
tir., mar. 18
8:50 am - 9:05 amSEA-SYD
30h 15m2 stops
$594United Airlines
Find Deal
ons., mar. 26
7:05 pm - 7:20 amSEA-SYD
19h 15m1 stop
$596Air Canada
Find Deal
fre., apr. 11
7:00 am - 7:45 pmSEA-SYD
17h 45m1 stop
$685Hawaiian Airlines
Find Deal
fre., mar. 7
7:00 am - 7:45 pmSEA-SYD
17h 45m1 stop
$832Hawaiian Airlines
Find Deal
ons., jan. 15
7:10 pm - 9:05 amSEA-SYD
42h 55m2 stops
4:15 pm - 9:10 pmSYD-SEA
23h 55m2 stops
$1,460United Airlines
Find Deal
man., dec. 23 - søn., dec. 29
7:35 am - 9:05 amSEA-SYD
30h 30m1 stop
12:10 pm - 9:15 pmSYD-SEA
28h 05m1 stop
$1,471United Airlines
Find Deal
man., dec. 23 - søn., dec. 29
5:00 am - 3:45 pmSEA-MEL
39h 45m2 stops
6:25 pm - 9:15 pmMEL-SEA
45h 50m2 stops
$2,165Air New Zealand
Find Deal
tor., dec. 26 - lør., dec. 28
5:00 am - 10:25 amSEA-SYD
58h 25m2 stops
7:55 am - 1:32 pmSYD-SEA
24h 37m2 stops
$2,215Air New Zealand
Find Deal
tor., dec. 26 - lør., jan. 18
7:30 am - 5:40 pmSEA-SYD
39h 10m2 stops
11:15 am - 6:52 pmSYD-SEA
26h 37m1 stop
$2,624Qantas Airways
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tir., dec. 24 - tor., jan. 2
10:54 pm - 6:45 pmSEA-PER
51h 51m2 stops
10:45 pm - 11:40 amPER-SEA
28h 55m1 stop
$2,944Qatar Airways
Find Deal
man., dec. 23 - man., dec. 30
7:30 am - 9:00 amSEA-SYD
30h 30m1 stop
11:15 am - 6:52 pmSYD-SEA
26h 37m1 stop
$3,010Qantas Airways
Find Deal
tir., dec. 24 - fre., jan. 3
4:05 pm - 6:25 pmSEA-MEL
31h 20m1 stop
5:10 pm - 11:40 amMEL-SEA
37h 30m1 stop
$4,000Qatar Airways
Find Deal
tir., dec. 24 - lør., jan. 4
8:40 am - 10:50 amSEA-MEL
31h 10m1 stop
12:35 am - 7:27 pmMEL-SEA
61h 52m3 stops
$4,300Singapore Airlines
Find Deal
tor., dec. 26 - lør., jan. 4
8:40 am - 5:55 amSEA-SYD
26h 15m1 stop
12:15 pm - 11:42 pmSYD-SEA
30h 27m2 stops
$4,375Singapore Airlines
Find Deal
tir., dec. 24 - fre., jan. 31

United Airlines flights from Seattle to Australia

Our best United Airlines deals on Seattle to Australia flight tickets
United Airlines
Feb 5
SEA7:00 amSeattle/Tacoma Intl
29h 00m
2 stops
SYD7:00 amSydney Kingsford Smith
Mar 4
SYD4:15 pmSydney Kingsford Smith
21h 14m
1 stop
SEA6:29 pmSeattle/Tacoma Intl
United Airlines
Feb 5
SEA12:50 pmSeattle/Tacoma Intl
25h 25m
1 stop
SYD9:15 amSydney Kingsford Smith
Mar 4
SYD11:20 amSydney Kingsford Smith
21h 37m
1 stop
SEA1:57 pmSeattle/Tacoma Intl
United Airlines
Feb 3
SEA5:15 pmSeattle/Tacoma Intl
20h 15m
1 stop
BNE7:30 amBrisbane
Feb 10
BNE11:40 amBrisbane
19h 52m
1 stop
SEA1:32 pmSeattle/Tacoma Intl

Air Canada flights from Seattle to Australia

Our best Air Canada deals on Seattle to Australia flight tickets
Air Canada
Mar 10
SEA7:05 pmSeattle/Tacoma Intl
19h 30m
1 stop
SYD8:35 amSydney Kingsford Smith
Mar 16
SYD10:20 amSydney Kingsford Smith
26h 05m
1 stop
SEA6:25 pmSeattle/Tacoma Intl
Air Canada
Feb 9
SEA10:35 amSeattle/Tacoma Intl
28h 00m
1 stop
SYD9:35 amSydney Kingsford Smith
Feb 17
SYD11:20 amSydney Kingsford Smith
17h 37m
1 stop
SEA9:57 amSeattle/Tacoma Intl
Air Canada
Feb 9
SEA10:35 amSeattle/Tacoma Intl
28h 00m
1 stop
SYD9:35 amSydney Kingsford Smith
Feb 17
SYD11:20 amSydney Kingsford Smith
17h 37m
1 stop
SEA9:57 amSeattle/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 $991. 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 $1,017.

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?

The best time to book a flight to Australia from Seattle is 37 days out, which is when prices tend to be around $1,125. Keep in mind that you might be able to find cheaper flights to Australia at any time. In fact, our users found flights for as low as $760 in the past 72 hours.

Can stopping save me money on Seattle to Australia flights?

You could potentially save up to 1% on your flight if you consider stops on a Seattle to Australia flight.

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

$385

Fastest flight time

17h 45m

Direct flights

None

Airports in Australia

5 airports
The best one-way flight to Australia from Seattle in the past 72 hours is $385. The best round-trip flight deal from Seattle to Australia found on momondo in the last 72 hours is $805.
The fastest flight from Seattle to Australia takes 17h 45m
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 - Brisbane Airport.
There are 5 airports near Australia: Melbourne Avalon (AVV), Melbourne (MEL), Brisbane (BNE), Cairns (CNS), 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
9,028 reviews
Search United Airlines flights
ANAPriceFrom $767Free CancellationRating
8.4
844 reviews
Search ANA flights
Air CanadaPriceFrom $796Free CancellationRating
7.0
8,413 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $836Free CancellationRating
7.5
809 reviews
Search Qantas Airways flights
DeltaPriceFrom $838Free CancellationRating
8.0
8,594 reviews
Search Delta flights
Alaska AirlinesPriceFrom $839Free CancellationRating
8.0
9,537 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $863Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $881Free CancellationRating
7.9
2,296 reviews
Search Hawaiian Airlines flights
Singapore AirlinesPriceFrom $1,199Free CancellationRating
8.1
1,331 reviews
Search Singapore Airlines flights
Air New ZealandPriceFrom $1,202Free CancellationRating
7.9
492 reviews
Search Air New Zealand 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.


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