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Cheap flights from Seattle to Melbourne Airport from $793

SEA — MEL
22 Sep — 29 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Melbourne

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Melbourne

Sat 29/815:58 -
1 stop21h 47m
Tue 15/909:45 -
1 stop20h 54m
Deal found 18/8$1,419
Fri 21/817:02 -
1 stop20h 43m
Fri 28/809:45 -
1 stop24h 07m
Deal found 20/8$1,426
Fri 21/809:59 -
1 stop28h 51m
Fri 28/810:00 -
1 stop21h 50m
Deal found 21/8$1,451
Wed 26/814:34 -
2 stops24h 41m
Fri 11/909:30 -
1 stop18h 54m
Deal found 19/8$1,464
Fri 28/809:05 -
1 stop30h 10m
Tue 15/906:00 -
2 stops27h 14m
Deal found 19/8$1,472
Fri 28/819:10 -
1 stop42h 35m
Tue 15/909:45 -
1 stop26h 54m
Deal found 21/8$1,481
Mon 21/912:02 -
1 stop23h 58m
Mon 28/909:45 -
1 stop23h 12m
Deal found 22/8$1,510
Mon 21/914:30 -
1 stop24h 20m
Sun 11/1011:00 -
1 stop19h 40m
Deal found 19/8$1,525
Tue 22/917:20 -
1 stop21h 55m
Mon 12/1011:55 -
1 stop22h 39m
Deal found 19/8$1,531
Sun 1/1114:30 -
1 stop22h 30m
Tue 17/1110:10 -
1 stop24h 07m
Deal found 21/8$1,535

Find flight deals from Seattle to Melbourne

Round-trip from

$1,510

One-way from

$793

Popular in

September

Cheapest in

March

Average price

$1,573
American Airlines
  • American Airlines
  • 21/9-28/9
  • 2 total stops
  • 47h 10m total
  • Seattle to Melbourne
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United Airlines
  • United Airlines
  • 10/10
  • 2 total stops
  • 39h 16m total
  • Seattle to Melbourne
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($249 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($91 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Melbourne Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 28/8

09:05-08:15

1 stop30h 10m

Melbourne

Tue 15/9

06:00-16:14

2 stops27h 14m

$1,472

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sat 29/8

07:00-08:15

2 stops32h 15m

Melbourne

Tue 15/9

06:00-11:21

2 stops22h 21m

$1,478

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sun 20/9

21:35-07:50

1 stop41h 15m

Melbourne

Tue 13/10

11:00-14:50

1 stop21h 50m

$1,525

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Tue 13/10

12:00-09:15

2 stops27h 15m

Melbourne

Tue 20/10

11:55-14:17

1 stop20h 22m

$1,548

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 23/10

09:42-07:10

2 stops27h 28m

Melbourne

Sat 31/10

09:10-22:05

2 stops30h 55m

$1,584

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

12:35-07:50

1 stop26h 15m

Melbourne

Fri 23/10

11:00-21:58

1 stop28h 58m

$1,674
Fastest return journey

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Mon 5/10

13:20-09:15

1 stop25h 55m

Melbourne

Tue 13/10

11:55-14:17

1 stop20h 22m

$1,779

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Thu 8/10

13:19-09:15

1 stop25h 56m

Melbourne

Mon 19/10

11:55-21:15

2 stops27h 20m

$1,844

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sat 31/10

11:50-23:00

1 stop41h 10m

Melbourne

Tue 3/11

00:45-09:10

1 stop27h 25m

$1,846

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Wed 9/9

20:44-22:15

2 stops32h 31m

Melbourne

Sun 13/9

23:45-21:39

2 stops38h 54m

$1,911

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 19 resultsSorted by cheapest first
1
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Best time to book a flight from Seattle to Melbourne

Have a flexible travel schedule? Discover the best time to fly to Melbourne from Seattle with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Melbourne Airport

How far ahead should I book a flight from Seattle to Melbourne Airport?

The best time to book flights from Seattle to Melbourne Airport is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Melbourne Airport?

Currently, March is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,442). Flying from Seattle to Melbourne Airport in September is currently the most expensive (average of $2,482). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Seattle to Melbourne Airport?

Airfare is below average for this route at the moment.

Seattle to Melbourne Airport flights typically cost between $1,520 and $2,118 in September.
The cheapest return price found within the last 5 days was $1,510 on American Airlines (21 Sept–28 Sept).

Reviews of airlines servicing Melbourne

Read through reviews of airlines operating flights from Seattle to Melbourne Airport, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,113 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
United Airlines
7.4
Good
10,113 reviews
United Airlines
7.4
Good
10,113 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

Related info for your journey

  • What airport do you fly from for flights from Seattle to Melbourne?

    If you book a flight to Melbourne from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle. There are 0 flights from Seattle/Tacoma Intl to Melbourne per day from 1 airline.

  • How long is the flight from Seattle to Melbourne Airport?

    United Airlines and Delta can get you from Seattle to Melbourne Airport in just under 30h 10m. Your travel time can differ by up to 11h 05m. There are 13164 km between Seattle and Melbourne Airport. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to Melbourne Airport round-trip?

    Currently priced at $1,410, United Airlines will fly you from Seattle to Melbourne Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. You may be able to fly from Seattle to Melbourne Airport for 20% less than the average price by searching for this airline.

  • Can I find deals for flights from Seattle to Melbourne that include hotel bookings?

    Yes. In addition to deals on Seattle to Melbourne flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Melbourne?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Melbourne.

  • Can I find deals for business class flights from Seattle to Melbourne?

    Yes. Cheapflights offers flight deals from Seattle to Melbourne by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Melbourne Airport?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,442). Flying from Seattle to Melbourne Airport in September is currently the most expensive (average of $2,482). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Geelong
Dandenong
Ballarat
Apollo Bay
Tullamarine
Lorne
Shepparton
St Kilda
Phillip Island
Sorrento
Torquay
Daylesford
Mornington
Brighton

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to Melbourne

Portland to Melbourne flights

Top airline flying from Seattle to Melbourne

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,410Average$1,524FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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Can Cheapflights find flights from Seattle to Melbourne with no change fees?

Yes, we can. To see specific flights from Seattle to Melbourne with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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