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

Philippine Airlines, Qantas Airways, and United Airlines 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 60% of people opting to fly with this airline when traveling to Melbourne. Keep in mind that there are 5 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 5 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.

$552 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

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:10 pm - 6:00 am

SEA

MEL

36h 50m1 stop

6:30 am - 8:05 pm

MEL

SEA

30h 35m1 stop

$981Philippine Airlines

Fri, Apr 3 - Tue, Apr 14

7:35 am - 5:00 am

SEA

MEL

26h 25m1 stop

12:00 pm - 6:53 pm

MEL

SEA

25h 53m1 stop

$982American Airlines

Mon, Feb 2 - Sun, Feb 15

5:53 pm - 3:35 pm

SEA

MEL

26h 42m2 stops

9:45 am - 10:49 pm

MEL

SEA

30h 04m1 stop

$984Qantas Airways

Tue, Feb 10 - Mon, Apr 20

5:39 am - 5:00 am

SEA

MEL

28h 21m1 stop

12:00 pm - 6:53 pm

MEL

SEA

25h 53m1 stop

$989American Airlines

Sat, Feb 21 - Sat, Mar 7

8:00 pm - 11:25 am

SEA

MEL

22h 25m2 stops

9:40 pm - 9:15 am

MEL

SEA

28h 35m2 stops

$991Multiple Airlines

Thu, Apr 23 - Thu, Apr 30

8:00 pm - 2:35 pm

SEA

MEL

23h 35m2 stops

7:10 am - 9:31 am

MEL

SEA

21h 21m2 stops

$993Air Canada

Sat, Feb 21 - Sat, Mar 7

8:00 pm - 2:15 pm

SEA

MEL

23h 15m2 stops

7:10 am - 9:15 am

MEL

SEA

21h 05m2 stops

$997Air Canada

Mon, Feb 2 - Sun, Feb 15

3:50 pm - 12:45 pm

SEA

MEL

25h 55m2 stops

1:45 pm - 6:40 pm

MEL

SEA

23h 55m2 stops

$999Multiple Airlines

Mon, Feb 23 - Wed, Mar 4

5:10 pm - 10:00 am

SEA

MEL

21h 50m1 stop

11:30 am - 9:01 pm

MEL

SEA

28h 31m2 stops

$1,005United Airlines

Mon, Feb 2 - Sun, Feb 15

5:43 pm - 4:05 pm

SEA

AVV

29h 22m2 stops

8:55 pm - 10:46 pm

AVV

SEA

42h 51m2 stops

$2,277Qantas Airways

Thu, May 21 - Thu, Jun 11

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

$984

Find similar

Qantas Airways

Feb 24

SEA3:52 pmSeattle/Tacoma Intl

22h 28m

2 stops

MEL9:20 amMelbourne

Mar 3

MEL12:00 pmMelbourne

20h 59m

1 stop

SEA1:59 pmSeattle/Tacoma Intl

$1,060

Find similar

Qantas Airways

Feb 24

SEA3:52 pmSeattle/Tacoma Intl

23h 43m

2 stops

MEL10:35 amMelbourne

Mar 7

MEL12:00 pmMelbourne

25h 57m

1 stop

SEA6:57 pmSeattle/Tacoma Intl

$1,080

Find similar

Air Canada flights from Seattle to Melbourne

Our best Air Canada deals on Seattle to Melbourne flight tickets

Air Canada

Feb 21

SEA8:00 pmSeattle/Tacoma Intl

23h 35m

2 stops

MEL2:35 pmMelbourne

Mar 7

MEL7:10 amMelbourne

21h 21m

2 stops

SEA9:31 amSeattle/Tacoma Intl

$993

Find similar

Air Canada

Feb 2

SEA8:00 pmSeattle/Tacoma Intl

23h 15m

2 stops

MEL2:15 pmMelbourne

Feb 15

MEL7:10 amMelbourne

21h 05m

2 stops

SEA9:15 amSeattle/Tacoma Intl

$997

Find similar

Air Canada

Feb 2

SEA8:00 pmSeattle/Tacoma Intl

24h 35m

2 stops

MEL3:35 pmMelbourne

Feb 17

MEL8:10 amMelbourne

25h 21m

2 stops

SEA2:31 pmSeattle/Tacoma Intl

$1,034

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 4/3

11:10 pm-6:00 am

1 stop36h 50m

Melbourne

Tue 4/14

6:30 am-8:05 pm

1 stop30h 35m

$981

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 2/2

7:35 am-5:00 am

1 stop26h 25m

Melbourne

Sun 2/15

12:00 pm-6:53 pm

1 stop25h 53m

$982

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

$984

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 2/21

5:39 am-5:00 am

1 stop28h 21m

Melbourne

Sat 3/7

12:00 pm-6:53 pm

1 stop25h 53m

$989

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 4/23

8:00 pm-11:25 am

2 stops22h 25m

Melbourne

Thu 4/30

9:40 pm-9:15 am

2 stops28h 35m

$991

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 2/21

8:00 pm-2:35 pm

2 stops23h 35m

Melbourne

Sat 3/7

7:10 am-9:31 am

2 stops21h 21m

$993

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 2/2

8:00 pm-2:15 pm

2 stops23h 15m

Melbourne

Sun 2/15

7:10 am-9:15 am

2 stops21h 05m

$997

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 2/23

3:50 pm-12:45 pm

2 stops25h 55m

Melbourne

Wed 3/4

1:45 pm-6:40 pm

2 stops23h 55m

$999

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 2/2

5:10 pm-10:00 am

1 stop21h 50m

Melbourne

Sun 2/15

11:30 am-9:01 pm

2 stops28h 31m

$1,005

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Thu 5/21

5:43 pm-4:05 pm

2 stops29h 22m

Melbourne Avalon

Thu 6/11

8:55 pm-10:46 pm

2 stops42h 51m

$2,277

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 $1,360 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	22h 25m
Direct flights	None

The fastest flight from Seattle to Melbourne takes 22h 25m

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. 22h 25m 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 5 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 11,465 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $855	Free Cancellation	Rating 7.1 10,529 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,042	Free Cancellation	Rating 7.5 946 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,107	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
Air New Zealand	PriceFrom $1,516	Free Cancellation	Rating 8.0 552 reviews	Search Air New Zealand 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.