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Cheap flights from Seattle to Melbourne from $745

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 28/8. 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.
United Airlines Logo
12:15 - 07:30SEA  Seattle/Tacoma Intl-MEL Melbourne
26h 15m1 stop Los Angeles
United Airlines Logo
06:00 - 20:43MEL  Melbourne-SEA Seattle/Tacoma Intl
31h 43m2 stops Brisbane San Francisco
$1,489United Airlines
Fri, 28 Aug - Tue, 15 Sep
United Airlines Logo
09:05 - 08:15SEA  Seattle/Tacoma Intl-MEL Melbourne
30h 10m1 stop San Francisco
United Airlines Logo
06:00 - 16:14MEL  Melbourne-SEA Seattle/Tacoma Intl
27h 14m2 stops Brisbane San Francisco
$1,489United Airlines
Fri, 28 Aug - Tue, 15 Sep
United Airlines Logo
15:30 - 08:15SEA  Seattle/Tacoma Intl-MEL Melbourne
23h 45m1 stop San Francisco
United Airlines Logo
06:00 - 14:24MEL  Melbourne-SEA Seattle/Tacoma Intl
25h 24m2 stops Brisbane San Francisco
$1,489United Airlines
Sat, 29 Aug - Tue, 15 Sep
United Airlines Logo
05:00 - 08:15SEA  Seattle/Tacoma Intl-MEL Melbourne
34h 15m2 stops Denver Intl San Francisco
United Airlines Logo
06:00 - 14:24MEL  Melbourne-SEA Seattle/Tacoma Intl
25h 24m2 stops Brisbane San Francisco
$1,494United Airlines
Sat, 29 Aug - Tue, 15 Sep
United Airlines Logo
12:44 - 07:30SEA  Seattle/Tacoma Intl-MEL Melbourne
25h 46m2 stops Denver Intl Los Angeles
United Airlines Logo
06:00 - 11:21MEL  Melbourne-SEA Seattle/Tacoma Intl
22h 21m2 stops Brisbane San Francisco
$1,494United Airlines
Fri, 28 Aug - Tue, 15 Sep
United Airlines Logo
11:03 - 07:30SEA  Seattle/Tacoma Intl-MEL Melbourne
27h 27m2 stops Denver Intl Los Angeles
United Airlines Logo
06:00 - 11:21MEL  Melbourne-SEA Seattle/Tacoma Intl
22h 21m2 stops Brisbane San Francisco
$1,494United Airlines
Fri, 28 Aug - Tue, 15 Sep
United Airlines Logo
12:44 - 08:15SEA  Seattle/Tacoma Intl-MEL Melbourne
26h 31m2 stops Denver Intl San Francisco
United Airlines Logo
06:00 - 11:21MEL  Melbourne-SEA Seattle/Tacoma Intl
22h 21m2 stops Brisbane San Francisco
$1,496United Airlines
Fri, 28 Aug - Tue, 15 Sep
American Airlines Logo
10:17 - 05:00SEA  Seattle/Tacoma Intl-MEL Melbourne
25h 43m1 stop Dallas/Fort Worth
American Airlines Logo
09:45 - 13:07MEL  Melbourne-SEA Seattle/Tacoma Intl
21h 22m1 stop Los Angeles
$1,515American Airlines
Mon, 28 Sep - Mon, 5 Oct
Fiji Airways Logo
17:59 - 12:25SEA  Seattle/Tacoma Intl-MEL Melbourne
24h 26m2 stops San Francisco Nadi
Fiji Airways Logo
13:45 - 17:21MEL  Melbourne-SEA Seattle/Tacoma Intl
22h 36m2 stops Nadi San Francisco
$1,534Fiji Airways
Wed, 28 Oct - Wed, 18 Nov
American Airlines Logo
12:02 - 05:00SEA  Seattle/Tacoma Intl-MEL Melbourne
23h 58m1 stop Dallas/Fort Worth
American Airlines Logo
17:35 - 22:37MEL  Melbourne-SEA Seattle/Tacoma Intl
23h 02m2 stops Brisbane Los Angeles
$1,549American Airlines
Mon, 28 Sep - Mon, 5 Oct

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American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
28 Sept
SEA10:17Seattle/Tacoma Intl
25h 43m
1 stop
MEL05:00Melbourne
5 Oct
MEL09:45Melbourne
21h 22m
1 stop
SEA13:07Seattle/Tacoma Intl
$1,515
American Airlines
28 Sept
SEA12:02Seattle/Tacoma Intl
23h 58m
1 stop
MEL05:00Melbourne
5 Oct
MEL17:35Melbourne
23h 02m
2 stops
SEA22:37Seattle/Tacoma Intl
$1,549
American Airlines
14 Oct
SEA16:37Seattle/Tacoma Intl
23h 53m
2 stops
MEL10:30Melbourne
4 Nov
MEL08:15Melbourne
23h 45m
2 stops
SEA13:00Seattle/Tacoma Intl
$1,613

Air Canada flights from Seattle to Melbourne

Our best Air Canada deals on Seattle to Melbourne flight tickets
Air Canada
28 Sept
SEA15:00Seattle/Tacoma Intl
27h 05m
2 stops
MEL11:05Melbourne
5 Oct
MEL06:15Melbourne
21h 37m
2 stops
SEA09:52Seattle/Tacoma Intl
$1,686
Air Canada
28 Aug
SEA19:20Seattle/Tacoma Intl
23h 00m
2 stops
MEL11:20Melbourne
15 Sept
MEL06:00Melbourne
25h 17m
2 stops
SEA14:17Seattle/Tacoma Intl
$1,774

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 17 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

Fri 28/8

12:15-07:30

1 stop26h 15m

Melbourne

Tue 15/9

06:00-20:43

2 stops31h 43m

$1,489

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

$1,489

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sat 29/8

15:30-08:15

1 stop23h 45m

Melbourne

Tue 15/9

06:00-14:24

2 stops25h 24m

$1,489

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sat 29/8

05:00-08:15

2 stops34h 15m

Melbourne

Tue 15/9

06:00-14:24

2 stops25h 24m

$1,494

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 28/8

12:44-07:30

2 stops25h 46m

Melbourne

Tue 15/9

06:00-11:21

2 stops22h 21m

$1,494

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 28/8

11:03-07:30

2 stops27h 27m

Melbourne

Tue 15/9

06:00-11:21

2 stops22h 21m

$1,494

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 28/8

12:44-08:15

2 stops26h 31m

Melbourne

Tue 15/9

06:00-11:21

2 stops22h 21m

$1,496

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Mon 28/9

10:17-05:00

1 stop25h 43m

Melbourne

Mon 5/10

09:45-13:07

1 stop21h 22m

$1,515

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Wed 28/10

17:59-12:25

2 stops24h 26m

Melbourne

Wed 18/11

13:45-17:21

2 stops22h 36m

$1,534
Fastest return journey

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Mon 28/9

12:02-05:00

1 stop23h 58m

Melbourne

Mon 5/10

17:35-22:37

2 stops23h 02m

$1,549

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 $1,539 to $1,727.
The lowest price recently found on this route was $1,489.

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 $1,459. 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 $1,498.

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 $1,749 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 $1,473 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

20h 05m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 20h 05m
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 20h 05m.

  • 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 $1,427Free cancellationRating
7.4
10,106 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