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

Philippine Airlines, Qantas Airways, and American Airlines are the most popular carriers 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 November 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.

$659 Cheap Flights from Seattle to Melbourne in 2025/26

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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.

06:00 - 05:00SEA-MEL

28h 00m1 stop

16:25 - 22:36MEL-SEA

24h 11m2 stops

$1,680American Airlines

Find Deal

Thu, 29 Jan - Tue, 24 Mar

19:29 - 10:00SEA-MEL

19h 31m1 stop

10:55 - 18:33MEL-SEA

24h 38m1 stop

$1,681United Airlines

Find Deal

Thu, 12 Feb - Thu, 7 May

19:29 - 10:00SEA-MEL

19h 31m1 stop

12:00 - 18:04MEL-SEA

24h 04m2 stops

$1,687United Airlines

Find Deal

Mon, 2 Mar - Thu, 12 Mar

07:35 - 05:00SEA-MEL

26h 25m1 stop

13:30 - 18:49MEL-SEA

23h 19m2 stops

$1,689American Airlines

Find Deal

Thu, 22 Jan - Sun, 15 Mar

20:00 - 17:25SEA-MEL

26h 25m2 stops

12:00 - 12:29MEL-SEA

19h 29m1 stop

$1,695Multiple Airlines

Find Deal

Tue, 27 Jan - Sat, 31 Jan

20:00 - 20:05SEA-AVV

31h 05m2 stops

20:55 - 09:21AVV-SEA

29h 26m2 stops

$1,701Multiple Airlines

Find Deal

Wed, 8 Apr - Thu, 18 Jun

19:05 - 09:30SEA-MEL

20h 25m1 stop

06:05 - 19:16MEL-SEA

31h 11m2 stops

$1,706Multiple Airlines

Find Deal

Mon, 16 Mar - Fri, 20 Mar

05:50 - 15:35SEA-MEL

38h 45m2 stops

06:00 - 18:36MEL-SEA

29h 36m2 stops

$1,735Air Canada

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Thu, 12 Feb - Tue, 5 May

16:50 - 15:50SEA-AVV

29h 00m2 stops

08:10 - 18:49AVV-SEA

28h 39m2 stops

$3,487Qantas Airways

Find Deal

Thu, 12 Mar - Sat, 28 Mar

06:00 - 15:50SEA-AVV

38h 50m2 stops

08:10 - 18:49AVV-SEA

29h 39m2 stops

$4,005Qantas Airways

Find Deal

Tue, 6 Jan - Wed, 14 Jan

Qantas Airways flights from Seattle to Melbourne

Our best Qantas Airways deals on Seattle to Melbourne flight tickets

Qantas Airways

16 Mar

SEA16:50Seattle/Tacoma Intl

22h 40m

1 stop

MEL09:30Melbourne

20 Mar

MEL12:00Melbourne

24h 49m

1 stop

SEA18:49Seattle/Tacoma Intl

$1,758

Find similar

Qantas Airways

16 Mar

SEA19:05Seattle/Tacoma Intl

20h 25m

1 stop

MEL09:30Melbourne

19 Mar

MEL12:00Melbourne

20h 16m

1 stop

SEA14:16Seattle/Tacoma Intl

$1,918

Find similar

Qantas Airways

20 Nov

SEA06:05Seattle/Tacoma Intl

32h 25m

1 stop

MEL09:30Melbourne

24 Nov

MEL15:00Melbourne

24h 23m

2 stops

SEA20:23Seattle/Tacoma Intl

$2,416

Find similar

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets

United Airlines

12 Feb

SEA19:29Seattle/Tacoma Intl

19h 31m

1 stop

MEL10:00Melbourne

7 May

MEL10:55Melbourne

24h 38m

1 stop

SEA18:33Seattle/Tacoma Intl

$1,681

Find similar

United Airlines

21 Feb

SEA12:55Seattle/Tacoma Intl

26h 05m

2 stops

MEL10:00Melbourne

7 Mar

MEL11:30Melbourne

19h 54m

1 stop

SEA12:24Seattle/Tacoma Intl

$1,687

Find similar

United Airlines

17 Mar

SEA12:20Seattle/Tacoma Intl

26h 10m

1 stop

MEL08:30Melbourne

19 Mar

MEL11:10Melbourne

49h 20m

2 stops

SEA18:30Seattle/Tacoma Intl

$1,726

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 29/1

06:00-05:00

1 stop28h 00m

Melbourne

Tue 24/3

16:25-22:36

2 stops24h 11m

$1,680

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 12/2

19:29-10:00

1 stop19h 31m

Melbourne

Thu 7/5

10:55-18:33

1 stop24h 38m

$1,681

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 2/3

19:29-10:00

1 stop19h 31m

Melbourne

Thu 12/3

12:00-18:04

2 stops24h 04m

$1,687

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 22/1

07:35-05:00

1 stop26h 25m

Melbourne

Sun 15/3

13:30-18:49

2 stops23h 19m

$1,689

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 27/1

20:00-17:25

2 stops26h 25m

Melbourne

Sat 31/1

12:00-12:29

1 stop19h 29m

$1,695

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Wed 8/4

20:00-20:05

2 stops31h 05m

Melbourne Avalon

Thu 18/6

20:55-09:21

2 stops29h 26m

$1,701

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 16/3

19:05-09:30

1 stop20h 25m

Melbourne

Fri 20/3

06:05-19:16

2 stops31h 11m

$1,706

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 12/2

05:50-15:35

2 stops38h 45m

Melbourne

Tue 5/5

06:00-18:36

2 stops29h 36m

$1,735

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Thu 12/3

16:50-15:50

2 stops29h 00m

Melbourne Avalon

Sat 28/3

08:10-18:49

2 stops28h 39m

$3,487

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Tue 6/1

06:00-15:50

2 stops38h 50m

Melbourne Avalon

Wed 14/1

08:10-18:49

2 stops29h 39m

$4,005

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 $1,701. 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 $1,703.

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

Our data shows that Saturday is the least expensive day to fly to Melbourne. Tickets to fly out on this day can be as low as $1,778. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Melbourne on Sunday is $2,691.

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

Our most recent data shows that the best time of day to fly to Melbourne is in the evening. Flights from Seattle to Melbourne during this time can be as low as $1,900. Flights to Melbourne are more costly in the afternoon, with an average ticket price of $2,274. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $2,096 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 $1,360 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

Direct flights	None

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

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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 19h 31m.
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 November 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 $1,547	Free cancellation	Rating 7.4 9,014 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.