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

Philippine Airlines and Qantas Airways are the most popular carriers operating from Seattle/Tacoma Intl to Melbourne

What airlines fly to Melbourne?

United Airlines, Qantas Airways and Air Canada are the top three most popular airlines that fly to Melbourne from Seattle according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Melbourne. Keep in mind that there are 4 different airlines that fly to Melbourne on a routine basis, so you have a few additional options to choose from.

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 4 as of December 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 travel and health documents you'll need for your trip to Melbourne may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Melbourne. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$490 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 round-trip flights

Enter your travel dates to find the best prices.

5:53 pm - 3:35 pm

SEA

MEL

26h 42m2 stops

9:45 am - 10:49 pm

MEL

SEA

30h 04m1 stop

$983Qantas Airways

Tue, Feb 10 - Mon, Apr 20

12:24 pm - 9:30 am

SEA

MEL

26h 06m1 stop

1:00 pm - 6:26 pm

MEL

SEA

24h 26m1 stop

$1,002United Airlines

Thu, Feb 5 - Thu, Feb 12

3:52 pm - 9:20 am

SEA

MEL

23h 28m2 stops

12:00 pm - 2:16 pm

MEL

SEA

20h 16m1 stop

$1,010Qantas Airways

Tue, Mar 10 - Tue, Mar 24

7:37 pm - 9:15 am

SEA

MEL

19h 38m1 stop

10:55 am - 2:36 pm

MEL

SEA

20h 41m1 stop

$1,011United Airlines

Wed, Apr 1 - Wed, Apr 15

12:55 pm - 9:30 am

SEA

MEL

25h 35m2 stops

10:30 am - 12:24 pm

MEL

SEA

19h 54m1 stop

$1,015United Airlines

Wed, Mar 4 - Sun, Mar 15

8:00 pm - 5:15 pm

SEA

MEL

26h 15m2 stops

8:50 pm - 9:31 am

MEL

SEA

30h 41m2 stops

$1,035Multiple Airlines

Thu, Jan 29 - Tue, Mar 24

8:00 pm - 12:35 pm

SEA

MEL

22h 35m2 stops

7:10 am - 9:31 am

MEL

SEA

20h 21m2 stops

$1,043Air Canada

Mon, Mar 16 - Fri, Mar 20

3:45 pm - 11:40 am

SEA

MEL

24h 55m2 stops

5:45 pm - 8:34 pm

MEL

SEA

21h 49m2 stops

$1,044Qantas Airways

Tue, Jan 13 - Tue, Jan 20

7:25 am - 8:00 am

SEA

MEL

29h 35m1 stop

9:10 am - 7:59 pm

MEL

SEA

28h 49m1 stop

$1,066Delta

Wed, Mar 4 - Wed, Mar 25

8:30 am - 8:00 am

SEA

MEL

28h 30m2 stops

9:10 am - 2:54 pm

MEL

SEA

23h 44m2 stops

$1,070Delta

Wed, Mar 4 - Sun, Mar 15

Qantas Airways flights from Seattle to Melbourne

Our best Qantas Airways deals on Seattle to Melbourne flight tickets

Qantas Airways

Feb 10

SEA5:53 pmSeattle/Tacoma Intl

26h 42m

2 stops

MEL3:35 pmMelbourne

Apr 20

MEL9:45 amMelbourne

30h 04m

1 stop

SEA10:49 pmSeattle/Tacoma Intl

$983

Find similar

Qantas Airways

Mar 10

SEA3:52 pmSeattle/Tacoma Intl

23h 28m

2 stops

MEL9:20 amMelbourne

Mar 24

MEL12:00 pmMelbourne

20h 16m

1 stop

SEA2:16 pmSeattle/Tacoma Intl

$1,010

Find similar

Qantas Airways

Jan 13

SEA3:45 pmSeattle/Tacoma Intl

24h 55m

2 stops

MEL11:40 amMelbourne

Jan 20

MEL5:45 pmMelbourne

21h 49m

2 stops

SEA8:34 pmSeattle/Tacoma Intl

$1,044

Find similar

Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets

Delta

Mar 4

SEA7:25 amSeattle/Tacoma Intl

29h 35m

1 stop

MEL8:00 amMelbourne

Mar 25

MEL9:10 amMelbourne

28h 49m

1 stop

SEA7:59 pmSeattle/Tacoma Intl

$1,066

Find similar

Delta

Mar 4

SEA8:30 amSeattle/Tacoma Intl

28h 30m

2 stops

MEL8:00 amMelbourne

Mar 15

MEL9:10 amMelbourne

23h 44m

2 stops

SEA2:54 pmSeattle/Tacoma Intl

$1,070

Find similar

Delta

Dec 24

SEA1:45 pmSeattle/Tacoma Intl

23h 15m

1 stop

MEL8:00 amMelbourne

Jan 11

MEL10:10 amMelbourne

21h 47m

1 stop

SEA12:57 pmSeattle/Tacoma Intl

$1,718

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 2/10

5:53 pm-3:35 pm

2 stops26h 42m

Melbourne

Mon 4/20

9:45 am-10:49 pm

1 stop30h 04m

$983

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 2/5

12:24 pm-9:30 am

1 stop26h 06m

Melbourne

Thu 2/12

1:00 pm-6:26 pm

1 stop24h 26m

$1,002

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 3/10

3:52 pm-9:20 am

2 stops23h 28m

Melbourne

Tue 3/24

12:00 pm-2:16 pm

1 stop20h 16m

$1,010

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 4/1

7:37 pm-9:15 am

1 stop19h 38m

Melbourne

Wed 4/15

10:55 am-2:36 pm

1 stop20h 41m

$1,011

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 3/4

12:55 pm-9:30 am

2 stops25h 35m

Melbourne

Sun 3/15

10:30 am-12:24 pm

1 stop19h 54m

$1,015

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 1/29

8:00 pm-5:15 pm

2 stops26h 15m

Melbourne

Tue 3/24

8:50 pm-9:31 am

2 stops30h 41m

$1,035

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 3/16

8:00 pm-12:35 pm

2 stops22h 35m

Melbourne

Fri 3/20

7:10 am-9:31 am

2 stops20h 21m

$1,043

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 1/13

3:45 pm-11:40 am

2 stops24h 55m

Melbourne

Tue 1/20

5:45 pm-8:34 pm

2 stops21h 49m

$1,044

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 3/4

7:25 am-8:00 am

1 stop29h 35m

Melbourne

Wed 3/25

9:10 am-7:59 pm

1 stop28h 49m

$1,066

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 3/4

8:30 am-8:00 am

2 stops28h 30m

Melbourne

Sun 3/15

9:10 am-2:54 pm

2 stops23h 44m

$1,070

Flights are sorted by cheapest round-trip 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 $1,108. The month of March is another great option to travel to Melbourne, with average flight prices from Seattle averaging around $1,185.

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

On average, the least expensive day to fly to Melbourne from Seattle is on a Monday. momondo users have found tickets for Monday departures for as low as $1,330. However, this price may fluctuate depending on the airline, the season, and holidays. 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 $1,470.

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 $1,313. Flights to Melbourne are more costly in the morning, with an average ticket price of $1,514. Departure times in the morning 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 $1,359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne from Seattle for as low as $459 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?
There are 8184.9 mi between Seattle/Tacoma Intl and Melbourne. 21h 06m is a normal flight duration for this route.
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 4 as of December 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Melbourne?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 travel and health documents you'll need for your trip to Melbourne may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Melbourne. It is always advisable to seek 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
Alaska Airlines	PriceFrom $97	Free Cancellation	Rating 8.0 11,517 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $828	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,042	Free Cancellation	Rating 7.5 949 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,099	Free Cancellation	Rating 7.4 9,107 reviews	Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Melbourne for you.

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

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

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?

Price alerts on flights to Melbourne from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.