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

ANA and Fiji 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 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.

$535 Cheap Flights from Seattle to Melbourne in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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 round-trip flights

Enter your travel dates to find the best prices.

8:35 am - 5:00 am

SEA

MEL

25h 25m1 stop

4:05 pm - 7:18 pm

MEL

SEA

22h 13m1 stop

$988American Airlines

Mon, Feb 2 - Mon, Feb 9

8:00 pm - 2:15 pm

SEA

MEL

23h 15m2 stops

8:10 am - 9:15 am

MEL

SEA

20h 05m2 stops

$989Air Canada

Sun, Jan 18 - Thu, Jan 29

3:40 pm - 1:35 pm

SEA

MEL

26h 55m2 stops

7:10 am - 9:31 am

MEL

SEA

21h 21m2 stops

$992Air Canada

Sat, Feb 21 - Sat, Mar 7

3:50 pm - 12:05 pm

SEA

MEL

27h 15m2 stops

1:25 pm - 6:54 pm

MEL

SEA

22h 29m2 stops

$994Fiji Airways

Wed, Apr 29 - Wed, May 6

8:00 pm - 2:15 pm

SEA

MEL

24h 15m2 stops

6:50 pm - 9:31 am

MEL

SEA

32h 41m2 stops

$995Multiple Airlines

Fri, Mar 13 - Tue, Mar 17

8:40 am - 9:30 am

SEA

MEL

29h 50m2 stops

11:30 am - 9:01 pm

MEL

SEA

28h 31m2 stops

$1,000United Airlines

Sat, Jan 31 - Fri, Feb 13

10:44 am - 12:25 pm

SEA

MEL

30h 41m2 stops

1:55 pm - 5:00 pm

MEL

SEA

22h 05m2 stops

$1,003Multiple Airlines

Sat, Feb 21 - Sat, Mar 7

6:00 am - 9:30 am

SEA

MEL

32h 30m1 stop

12:00 pm - 1:59 pm

MEL

SEA

20h 59m1 stop

$1,007Qantas Airways

Thu, Feb 5 - Thu, Feb 12

9:25 am - 10:00 am

SEA

MEL

29h 35m1 stop

1:00 pm - 6:26 pm

MEL

SEA

24h 26m1 stop

$1,011United Airlines

Fri, Jan 30 - Thu, Feb 12

7:08 pm - 2:10 pm

SEA

AVV

26h 02m2 stops

6:00 am - 8:35 pm

AVV

SEA

31h 35m2 stops

$2,001Qantas Airways

Sun, May 3 - Sat, May 16

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets

United Airlines

Jan 31

SEA8:40 amSeattle/Tacoma Intl

29h 50m

2 stops

MEL9:30 amMelbourne

Feb 13

MEL11:30 amMelbourne

28h 31m

2 stops

SEA9:01 pmSeattle/Tacoma Intl

$1,000

Find similar

United Airlines

Jan 30

SEA9:25 amSeattle/Tacoma Intl

29h 35m

1 stop

MEL10:00 amMelbourne

Feb 8

MEL11:30 amMelbourne

28h 42m

2 stops

SEA9:12 pmSeattle/Tacoma Intl

$1,011

Find similar

United Airlines

Jan 25

SEA12:57 pmSeattle/Tacoma Intl

49h 33m

3 stops

MEL9:30 amMelbourne

Feb 25

MEL1:00 pmMelbourne

21h 41m

1 stop

SEA3:41 pmSeattle/Tacoma Intl

$1,015

Find similar

Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets

Delta

Jan 29

SEA7:00 pmSeattle/Tacoma Intl

42h 00m

2 stops

MEL8:00 amMelbourne

Feb 27

MEL10:10 amMelbourne

25h 38m

2 stops

SEA4:48 pmSeattle/Tacoma Intl

$1,022

Find similar

Delta

Jan 31

SEA7:00 pmSeattle/Tacoma Intl

66h 00m

2 stops

MEL8:00 amMelbourne

Feb 11

MEL10:10 amMelbourne

25h 45m

2 stops

SEA4:55 pmSeattle/Tacoma Intl

$1,035

Find similar

Delta

Jan 25

SEA7:00 pmSeattle/Tacoma Intl

42h 00m

2 stops

MEL8:00 amMelbourne

Feb 22

MEL10:10 amMelbourne

23h 34m

1 stop

SEA2:44 pmSeattle/Tacoma Intl

$1,070

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 2/2

8:35 am-5:00 am

1 stop25h 25m

Melbourne

Mon 2/9

4:05 pm-7:18 pm

1 stop22h 13m

$988

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 1/18

8:00 pm-2:15 pm

2 stops23h 15m

Melbourne

Thu 1/29

8:10 am-9:15 am

2 stops20h 05m

$989

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 2/21

3:40 pm-1:35 pm

2 stops26h 55m

Melbourne

Sat 3/7

7:10 am-9:31 am

2 stops21h 21m

$992

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 4/29

3:50 pm-12:05 pm

2 stops27h 15m

Melbourne

Wed 5/6

1:25 pm-6:54 pm

2 stops22h 29m

$994

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/13

8:00 pm-2:15 pm

2 stops24h 15m

Melbourne

Tue 3/17

6:50 pm-9:31 am

2 stops32h 41m

$995

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 1/31

8:40 am-9:30 am

2 stops29h 50m

Melbourne

Fri 2/13

11:30 am-9:01 pm

2 stops28h 31m

$1,000

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 2/21

10:44 am-12:25 pm

2 stops30h 41m

Melbourne

Sat 3/7

1:55 pm-5:00 pm

2 stops22h 05m

$1,003

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 2/5

6:00 am-9:30 am

1 stop32h 30m

Melbourne

Thu 2/12

12:00 pm-1:59 pm

1 stop20h 59m

$1,007

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 1/30

9:25 am-10:00 am

1 stop29h 35m

Melbourne

Thu 2/12

1:00 pm-6:26 pm

1 stop24h 26m

$1,011

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sun 5/3

7:08 pm-2:10 pm

2 stops26h 02m

Melbourne Avalon

Sat 5/16

6:00 am-8:35 pm

2 stops31h 35m

$2,001

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 50m
Direct flights	None

The fastest flight from Seattle to Melbourne takes 21h 50m

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. 20h 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 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
Air Canada	PriceFrom $855	Free Cancellation	Rating 7.1 10,514 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,042	Free Cancellation	Rating 7.5 947 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,108	Free Cancellation	Rating 7.4 9,089 reviews	Search United Airlines flights
Air New Zealand	PriceFrom $1,516	Free Cancellation	Rating 8.0 552 reviews	Search Air New Zealand flights
Alaska Airlines	PriceFrom $1,618	Free Cancellation	Rating 8.0 11,419 reviews	Search Alaska 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.