What is the cheapest airline that flies from Seattle/Tacoma Intl to Melbourne?

Philippine Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Melbourne

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

Prices for flights from Seattle/Tacoma Intl Airport to Melbourne refresh daily.

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

The number of operators available for flights from Seattle/Tacoma Intl Airport to Melbourne is 1 as of December 2025.

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

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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Melbourne.

What documentation or ID do you need to fly to Melbourne?

The necessary travel and health documents for your Melbourne 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.

$703 Cheap Flights from Seattle to Melbourne in 2025/26

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 Seattle to Melbourne

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

20:00 - 16:05

SEA

AVV

27h 05m2 stops

20:40 - 09:15

AVV

SEA

29h 35m2 stops

$1,402Multiple Airlines

Tue, 21 Apr - Sun, 3 May

10:05 - 15:50

SEA

AVV

35h 45m2 stops

20:40 - 15:03

AVV

SEA

35h 23m2 stops

$1,407Multiple Airlines

Thu, 26 Mar - Sat, 11 Apr

20:00 - 11:25

SEA

MEL

22h 25m2 stops

06:00 - 09:33

MEL

SEA

20h 33m2 stops

$1,416Multiple Airlines

Mon, 6 Apr - Mon, 20 Apr

15:40 - 14:05

SEA

MEL

27h 25m2 stops

07:10 - 09:31

MEL

SEA

21h 21m2 stops

$1,417Multiple Airlines

Tue, 17 Feb - Sat, 7 Mar

20:00 - 11:25

SEA

MEL

22h 25m2 stops

06:00 - 15:03

MEL

SEA

26h 03m2 stops

$1,422Multiple Airlines

Thu, 9 Apr - Thu, 30 Apr

20:00 - 14:35

SEA

MEL

23h 35m2 stops

08:10 - 15:01

MEL

SEA

25h 51m2 stops

$1,426Air Canada

Sat, 21 Feb - Sat, 7 Mar

20:00 - 14:15

SEA

MEL

23h 15m2 stops

06:00 - 09:33

MEL

SEA

20h 33m2 stops

$1,428Air Canada

Tue, 10 Feb - Mon, 20 Apr

23:10 - 06:30

SEA

MEL

38h 20m1 stop

06:30 - 20:05

MEL

SEA

30h 35m1 stop

$1,431Philippine Airlines

Tue, 12 May - Tue, 26 May

18:40 - 14:10

SEA

AVV

26h 30m2 stops

08:50 - 22:42

AVV

SEA

30h 52m2 stops

$3,024Qantas Airways

Sun, 17 May - Sat, 30 May

15:57 - 15:50

SEA

AVV

28h 53m2 stops

06:00 - 18:57

AVV

SEA

31h 57m2 stops

$3,821Qantas Airways

Wed, 11 Feb - Sun, 22 Feb

Air Canada flights from Seattle to Melbourne

Our best Air Canada deals on Seattle to Melbourne flight tickets

Air Canada

21 Feb

SEA20:00Seattle/Tacoma Intl

23h 35m

2 stops

MEL14:35Melbourne

7 Mar

MEL08:10Melbourne

25h 51m

2 stops

SEA15:01Seattle/Tacoma Intl

$1,426

Find similar

Air Canada

10 Feb

SEA20:00Seattle/Tacoma Intl

23h 15m

2 stops

MEL14:15Melbourne

20 Apr

MEL06:00Melbourne

20h 33m

2 stops

SEA09:33Seattle/Tacoma Intl

$1,428

Find similar

Air Canada

10 May

SEA09:55Seattle/Tacoma Intl

32h 10m

2 stops

MEL11:05Melbourne

23 May

MEL19:40Melbourne

30h 35m

2 stops

SEA09:15Seattle/Tacoma Intl

$1,489

Find similar

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets

United Airlines

5 Feb

SEA12:24Seattle/Tacoma Intl

26h 06m

1 stop

MEL09:30Melbourne

19 Feb

MEL13:00Melbourne

27h 12m

2 stops

SEA21:12Seattle/Tacoma Intl

$1,498

Find similar

United Airlines

30 Dec

SEA12:35Seattle/Tacoma Intl

26h 25m

1 stop

MEL10:00Melbourne

2 Feb

MEL11:30Melbourne

28h 42m

2 stops

SEA21:12Seattle/Tacoma Intl

$1,510

Find similar

United Airlines

2 Jan

SEA08:57Seattle/Tacoma Intl

29h 33m

2 stops

MEL09:30Melbourne

19 Jan

MEL11:30Melbourne

28h 42m

2 stops

SEA21:12Seattle/Tacoma Intl

$1,517

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Tue 21/4

20:00-16:05

2 stops27h 05m

Melbourne Avalon

Sun 3/5

20:40-09:15

2 stops29h 35m

$1,402

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Thu 26/3

10:05-15:50

2 stops35h 45m

Melbourne Avalon

Sat 11/4

20:40-15:03

2 stops35h 23m

$1,407

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 6/4

20:00-11:25

2 stops22h 25m

Melbourne

Mon 20/4

06:00-09:33

2 stops20h 33m

$1,416

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 17/2

15:40-14:05

2 stops27h 25m

Melbourne

Sat 7/3

07:10-09:31

2 stops21h 21m

$1,417

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 9/4

20:00-11:25

2 stops22h 25m

Melbourne

Thu 30/4

06:00-15:03

2 stops26h 03m

$1,422

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 21/2

20:00-14:35

2 stops23h 35m

Melbourne

Sat 7/3

08:10-15:01

2 stops25h 51m

$1,426

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 10/2

20:00-14:15

2 stops23h 15m

Melbourne

Mon 20/4

06:00-09:33

2 stops20h 33m

$1,428

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 12/5

23:10-06:30

1 stop38h 20m

Melbourne

Tue 26/5

06:30-20:05

1 stop30h 35m

$1,431

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sun 17/5

18:40-14:10

2 stops26h 30m

Melbourne Avalon

Sat 30/5

08:50-22:42

2 stops30h 52m

$3,024

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Wed 11/2

15:57-15:50

2 stops28h 53m

Melbourne Avalon

Sun 22/2

06:00-18:57

2 stops31h 57m

$3,820

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 Seattle to Melbourne

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

What is the cheapest month to fly to Melbourne?

In general, February is the cheapest month to fly from Seattle to Melbourne. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,653. If you aren’t able to travel to Melbourne during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,768.

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

You are more likely to see cheaper flights to Melbourne from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Melbourne for around $2,016 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne from Seattle for as low as $1,219 on momondo.

Cheap Seattle to Melbourne flight deals and tips

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

Fastest flight time	21h 06m
Direct flights	None

The fastest flight from Seattle to Melbourne takes 21h 06m

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

Search flight deals

How far is Seattle/Tacoma Intl to Melbourne by plane?
Melbourne is 13172.3 km away from Seattle/Tacoma Intl. A reasonable flight in good conditions will take 21h 06m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Melbourne?
Prices for flights from Seattle/Tacoma Intl Airport to Melbourne refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Melbourne?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Melbourne is 1 as of December 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Melbourne?
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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Melbourne.
What documentation or ID do you need to fly to Melbourne?
The necessary travel and health documents for your Melbourne 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.

Best airlines flying from Seattle to Melbourne

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

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $1,615	Free cancellation	Rating 7.4 9,121 reviews		Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Melbourne from Seattle.

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

Yes. All flights to Melbourne from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Seattle to Melbourne flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Seattle to Melbourne flights. All you need is a valid email address and we will do the rest; it is that quick and easy.