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

Qantas Airways, United Airlines, and Delta 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.

$819 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 - 09:30SEA-MEL

32h 30m1 stop

16:05 - 00:49MEL-SEA

26h 44m1 stop

$1,645American Airlines

Find Deal

Thu, 5 Feb - Mon, 16 Mar

15:40 - 14:15SEA-MEL

27h 35m2 stops

18:50 - 15:01MEL-SEA

39h 11m2 stops

$1,648Air Canada

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Fri, 30 Jan - Mon, 2 Mar

19:29 - 10:00SEA-MEL

19h 31m1 stop

10:30 - 12:24MEL-SEA

19h 54m1 stop

$1,656United Airlines

Find Deal

Sat, 28 Feb - Thu, 26 Mar

17:53 - 09:30SEA-MEL

20h 37m1 stop

12:00 - 13:59MEL-SEA

20h 59m1 stop

$1,657Qantas Airways

Find Deal

Tue, 3 Feb - Fri, 27 Feb

20:15 - 09:30SEA-MEL

42h 15m1 stop

09:45 - 12:56MEL-SEA

20h 11m1 stop

$1,663Multiple Airlines

Find Deal

Tue, 10 Feb - Mon, 20 Apr

06:00 - 05:00SEA-MEL

28h 00m1 stop

16:25 - 22:36MEL-SEA

24h 11m2 stops

$1,668American Airlines

Find Deal

Thu, 29 Jan - Tue, 24 Mar

17:10 - 10:00SEA-MEL

21h 50m1 stop

10:30 - 19:16MEL-SEA

26h 46m1 stop

$1,669United Airlines

Find Deal

Thu, 29 Jan - Tue, 24 Mar

15:16 - 10:00SEA-MEL

23h 44m2 stops

11:30 - 15:52MEL-SEA

23h 22m1 stop

$1,676United Airlines

Find Deal

Sat, 21 Feb - Sat, 7 Mar

23:59 - 10:00SEA-MEL

39h 01m2 stops

13:00 - 16:52MEL-SEA

22h 52m1 stop

$1,677United Airlines

Find Deal

Sat, 13 Dec - Thu, 25 Dec

10:25 - 08:00SEA-MEL

26h 35m1 stop

10:10 - 12:58MEL-SEA

21h 48m1 stop

$1,680Delta

Find Deal

Wed, 10 Dec - Sun, 8 Feb

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets

American Airlines

5 Feb

SEA06:00Seattle/Tacoma Intl

32h 30m

1 stop

MEL09:30Melbourne

16 Mar

MEL16:05Melbourne

26h 44m

1 stop

SEA00:49Seattle/Tacoma Intl

$1,645

Find similar

American Airlines

29 Jan

SEA08:35Seattle/Tacoma Intl

25h 25m

1 stop

MEL05:00Melbourne

24 Mar

MEL16:25Melbourne

24h 11m

2 stops

SEA22:36Seattle/Tacoma Intl

$1,668

Find similar

American Airlines

5 Feb

SEA06:00Seattle/Tacoma Intl

32h 30m

1 stop

MEL09:30Melbourne

16 Mar

MEL13:30Melbourne

23h 19m

2 stops

SEA18:49Seattle/Tacoma Intl

$1,689

Find similar

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets

United Airlines

28 Feb

SEA19:29Seattle/Tacoma Intl

19h 31m

1 stop

MEL10:00Melbourne

26 Mar

MEL10:30Melbourne

19h 54m

1 stop

SEA12:24Seattle/Tacoma Intl

$1,656

Find similar

United Airlines

30 Dec

SEA13:35Seattle/Tacoma Intl

25h 25m

1 stop

MEL10:00Melbourne

2 Feb

MEL11:30Melbourne

28h 42m

2 stops

SEA21:12Seattle/Tacoma Intl

$1,669

Find similar

United Airlines

21 Feb

SEA12:55Seattle/Tacoma Intl

25h 35m

2 stops

MEL09:30Melbourne

7 Mar

MEL13:00Melbourne

24h 27m

1 stop

SEA18:27Seattle/Tacoma Intl

$1,676

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 5/2

06:00-09:30

1 stop32h 30m

Melbourne

Mon 16/3

16:05-00:49

1 stop26h 44m

$1,645

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 30/1

15:40-14:15

2 stops27h 35m

Melbourne

Mon 2/3

18:50-15:01

2 stops39h 11m

$1,648

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 28/2

19:29-10:00

1 stop19h 31m

Melbourne

Thu 26/3

10:30-12:24

1 stop19h 54m

$1,656

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 3/2

17:53-09:30

1 stop20h 37m

Melbourne

Fri 27/2

12:00-13:59

1 stop20h 59m

$1,657

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 10/2

20:15-09:30

1 stop42h 15m

Melbourne

Mon 20/4

09:45-12:56

1 stop20h 11m

$1,663

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

$1,668

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 29/1

17:10-10:00

1 stop21h 50m

Melbourne

Tue 24/3

10:30-19:16

1 stop26h 46m

$1,669

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 21/2

15:16-10:00

2 stops23h 44m

Melbourne

Sat 7/3

11:30-15:52

1 stop23h 22m

$1,676

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 13/12

23:59-10:00

2 stops39h 01m

Melbourne

Thu 25/12

13:00-16:52

1 stop22h 52m

$1,677

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 10/12

10:25-08:00

1 stop26h 35m

Melbourne

Sun 8/2

10:10-12:58

1 stop21h 48m

$1,680

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 $1,691. 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 $1,808.

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 $1,767. 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 $2,675.

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 $1,889. Flights to Melbourne are more costly in the afternoon, with an average ticket price of $2,261. 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 $2,094 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 $1,352 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 $1,538	Free cancellation	Rating 7.4 9,016 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.