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Cheap flights from Seattle to Melbourne from $740

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Melbourne departing on 20/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:06 - 09:30SEA  Seattle/Tacoma Intl-MEL Melbourne
27h 24m1 stop Los Angeles
Multiple Airlines Logo
13:45 - 18:26MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 41m2 stops Nadi Los Angeles
$1,387Multiple Airlines
Mon, 9 Nov - Wed, 18 Nov
Multiple Airlines Logo
11:06 - 09:30SEA  Seattle/Tacoma Intl-MEL Melbourne
27h 24m1 stop Los Angeles
Multiple Airlines Logo
13:45 - 18:26MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 41m2 stops Nadi Los Angeles
$1,388Multiple Airlines
Tue, 10 Nov - Wed, 18 Nov
Multiple Airlines Logo
11:06 - 09:30SEA  Seattle/Tacoma Intl-MEL Melbourne
27h 24m1 stop Los Angeles
Multiple Airlines Logo
13:45 - 18:26MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 41m2 stops Nadi Los Angeles
$1,390Multiple Airlines
Thu, 12 Nov - Wed, 18 Nov
American Airlines Logo
07:11 - 06:45SEA  Seattle/Tacoma Intl-MEL Melbourne
30h 34m1 stop Los Angeles
American Airlines Logo
09:45 - 16:52MEL  Melbourne-SEA Seattle/Tacoma Intl
24h 07m1 stop Los Angeles
$1,448American Airlines
Tue, 18 Aug - Fri, 28 Aug
American Airlines Logo
17:02 - 06:45SEA  Seattle/Tacoma Intl-MEL Melbourne
20h 43m1 stop Los Angeles
American Airlines Logo
09:45 - 16:52MEL  Melbourne-SEA Seattle/Tacoma Intl
24h 07m1 stop Los Angeles
$1,449American Airlines
Wed, 19 Aug - Sat, 29 Aug
Multiple Airlines Logo
11:06 - 09:30SEA  Seattle/Tacoma Intl-MEL Melbourne
27h 24m1 stop Los Angeles
Multiple Airlines Logo
13:35 - 18:26MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 51m2 stops Nadi Los Angeles
$1,449Multiple Airlines
Tue, 10 Nov - Mon, 16 Nov
Multiple Airlines Logo
11:06 - 09:30SEA  Seattle/Tacoma Intl-MEL Melbourne
27h 24m1 stop Los Angeles
Multiple Airlines Logo
13:35 - 18:26MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 51m2 stops Nadi Los Angeles
$1,449Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
11:06 - 09:30SEA  Seattle/Tacoma Intl-MEL Melbourne
27h 24m1 stop Los Angeles
Multiple Airlines Logo
13:35 - 18:26MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 51m2 stops Nadi Los Angeles
$1,452Multiple Airlines
Thu, 12 Nov - Mon, 16 Nov
United Airlines Logo
13:16 - 08:15SEA  Seattle/Tacoma Intl-MEL Melbourne
25h 59m1 stop San Francisco
United Airlines Logo
09:30 - 15:45MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 15m1 stop Los Angeles
$1,480United Airlines
Fri, 28 Aug - Fri, 11 Sep
United Airlines Logo
17:20 - 08:15SEA  Seattle/Tacoma Intl-MEL Melbourne
21h 55m1 stop San Francisco
United Airlines Logo
10:55 - 18:29MEL  Melbourne-SEA Seattle/Tacoma Intl
24h 34m1 stop San Francisco
$1,480United Airlines
Mon, 31 Aug - Mon, 7 Sep

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Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets
Delta
18 Aug
SEA13:25Seattle/Tacoma Intl
49h 25m
2 stops
MEL07:50Melbourne
28 Aug
MEL10:00Melbourne
25h 44m
2 stops
SEA18:44Seattle/Tacoma Intl
$1,495
Delta
8 Nov
SEA17:45Seattle/Tacoma Intl
21h 05m
1 stop
MEL09:50Melbourne
18 Nov
MEL12:00Melbourne
19h 40m
1 stop
SEA12:40Seattle/Tacoma Intl
$1,558
Delta
27 Oct
SEA14:30Seattle/Tacoma Intl
24h 20m
1 stop
MEL08:50Melbourne
11 Nov
MEL12:00Melbourne
19h 40m
1 stop
SEA12:40Seattle/Tacoma Intl
$1,560

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
13 Aug
SEA19:35Seattle/Tacoma Intl
19h 40m
1 stop
MEL08:15Melbourne
26 Aug
MEL06:00Melbourne
22h 25m
2 stops
SEA11:25Seattle/Tacoma Intl
$1,480
United Airlines
28 Aug
SEA14:34Seattle/Tacoma Intl
24h 41m
2 stops
MEL08:15Melbourne
11 Sept
MEL10:55Melbourne
23h 47m
2 stops
SEA17:42Seattle/Tacoma Intl
$1,486
United Airlines
19 Aug
SEA12:44Seattle/Tacoma Intl
25h 46m
2 stops
MEL07:30Melbourne
29 Aug
MEL10:55Melbourne
23h 47m
2 stops
SEA17:42Seattle/Tacoma Intl
$1,488

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Melbourne that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 6 August 2026.
Use the filters below to find and compare flights from Seattle to Melbourne 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

Mon 9/11

11:06-09:30

1 stop27h 24m

Melbourne

Wed 18/11

13:45-18:26

2 stops23h 41m

$1,387

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Tue 10/11

11:06-09:30

1 stop27h 24m

Melbourne

Wed 18/11

13:45-18:26

2 stops23h 41m

$1,388

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Thu 12/11

11:06-09:30

1 stop27h 24m

Melbourne

Wed 18/11

13:45-18:26

2 stops23h 41m

$1,390

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Tue 18/8

07:11-06:45

1 stop30h 34m

Melbourne

Fri 28/8

09:45-16:52

1 stop24h 07m

$1,448
Fastest return journey

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Wed 19/8

17:02-06:45

1 stop20h 43m

Melbourne

Sat 29/8

09:45-16:52

1 stop24h 07m

$1,449

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Tue 10/11

11:06-09:30

1 stop27h 24m

Melbourne

Mon 16/11

13:35-18:26

2 stops23h 51m

$1,449

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Mon 9/11

11:06-09:30

1 stop27h 24m

Melbourne

Mon 16/11

13:35-18:26

2 stops23h 51m

$1,449

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Thu 12/11

11:06-09:30

1 stop27h 24m

Melbourne

Mon 16/11

13:35-18:26

2 stops23h 51m

$1,452

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 28/8

13:16-08:15

1 stop25h 59m

Melbourne

Fri 11/9

09:30-15:45

1 stop23h 15m

$1,480

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Mon 31/8

17:20-08:15

1 stop21h 55m

Melbourne

Mon 7/9

10:55-18:29

1 stop24h 34m

$1,480

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Melbourne from

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

What is the typical price of a round-trip flight between Seattle and Melbourne?

Prices are currently low for flights on this route.

Typical prices usually range from $1,532 to $1,689.
The lowest price recently found on this route was $1,387.

What is the cheapest month to fly to Melbourne?

In general, March 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 $1,466. If you aren’t able to travel to Melbourne during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,506.

How far in advance should I book a flight from Seattle 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 $1,758 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 $1,480 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

19h 58m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 19h 58m
There are no direct flights from Seattle to Melbourne. There are no popular flight routes from Seattle to Melbourne.
Search flight deals

Frequently asked questions about flying from Seattle to Melbourne

  • 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 58m.

  • 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?

  • 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 AirlinesPriceFrom $1,434Free cancellationRating
7.4
10,073 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.

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Find better results for your trip to Australia

Fly into one of these airports located in Melbourne

Airports listed have a maximum distance of 50.4 km from Melbourne
Melbourne Avalon Airport