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Cheap flights from Seattle to Melbourne from $769

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 26/8. 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

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Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
15:58 - 06:45
SEA
-
MEL
21h 47m
1 stop
Qantas Airways Logo
09:45 - 12:16
MEL
-
SEA
20h 31m
1 stop
$1,496Qantas Airways
Fri, 25 Sep - Fri, 23 Oct
United Airlines Logo
17:20 - 09:15
SEA
-
MEL
21h 55m
1 stop
United Airlines Logo
11:30 - 21:12
MEL
-
SEA
28h 42m
2 stops
$1,511United Airlines
Tue, 20 Oct - Fri, 27 Nov
American Airlines Logo
07:00 - 06:45
SEA
-
MEL
30h 45m
1 stop
American Airlines Logo
09:45 - 21:45
MEL
-
SEA
29h 00m
1 stop
$1,513American Airlines
Fri, 3 Jul - Sat, 11 Jul
American Airlines Logo
11:58 - 06:45
SEA
-
MEL
24h 47m
2 stops
American Airlines Logo
09:45 - 16:36
MEL
-
SEA
24h 51m
1 stop
$1,518American Airlines
Mon, 5 Oct - Tue, 13 Oct
American Airlines Logo
07:23 - 05:00
SEA
-
MEL
26h 37m
1 stop
American Airlines Logo
23:15 - 12:25
MEL
-
SEA
32h 10m
1 stop
$1,522American Airlines
Thu, 26 Nov - Thu, 10 Dec
Multiple Airlines Logo
10:29 - 08:15
SEA
-
MEL
28h 46m
1 stop
Multiple Airlines Logo
10:55 - 12:34
MEL
-
SEA
18h 39m
1 stop
$1,525Multiple Airlines
Tue, 30 Jun - Tue, 7 Jul
United Airlines Logo
13:16 - 10:00
SEA
-
MEL
25h 44m
1 stop
United Airlines Logo
11:30 - 11:33
MEL
-
SEA
19h 03m
1 stop
$1,527United Airlines
Mon, 9 Nov - Fri, 20 Nov
United Airlines Logo
10:45 - 10:00
SEA
-
MEL
28h 15m
1 stop
United Airlines Logo
13:00 - 12:12
MEL
-
SEA
18h 12m
1 stop
$1,528United Airlines
Thu, 26 Nov - Tue, 8 Dec
Multiple Airlines Logo
08:56 - 08:15
SEA
-
MEL
30h 19m
2 stops
Multiple Airlines Logo
10:55 - 14:24
MEL
-
SEA
20h 29m
1 stop
$1,532Multiple Airlines
Tue, 30 Jun - Sat, 22 Aug
United Airlines Logo
08:56 - 07:30
SEA
-
MEL
29h 34m
2 stops
United Airlines Logo
10:55 - 21:19
MEL
-
SEA
27h 24m
2 stops
$1,534United Airlines
Fri, 3 Jul - Sat, 11 Jul

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
20 Oct
SEA14:34Seattle/Tacoma Intl
24h 41m
2 stops
MEL09:15Melbourne
25 Nov
MEL11:30Melbourne
28h 42m
2 stops
SEA21:12Seattle/Tacoma Intl
$1,511
United Airlines
9 Nov
SEA13:16Seattle/Tacoma Intl
25h 44m
1 stop
MEL10:00Melbourne
20 Nov
MEL11:30Melbourne
19h 03m
1 stop
SEA11:33Seattle/Tacoma Intl
$1,527
United Airlines
26 Nov
SEA19:32Seattle/Tacoma Intl
19h 28m
1 stop
MEL10:00Melbourne
12 Dec
MEL11:30Melbourne
19h 03m
1 stop
SEA11:33Seattle/Tacoma Intl
$1,528

Air New Zealand flights from Seattle to Melbourne

Our best Air New Zealand deals on Seattle to Melbourne flight tickets
Air New Zealand
27 Nov
SEA18:51Seattle/Tacoma Intl
19h 39m
1 stop
MEL09:30Melbourne
11 Dec
MEL11:30Melbourne
29h 26m
1 stop
SEA21:56Seattle/Tacoma Intl
$1,536
Air New Zealand
25 Nov
SEA17:30Seattle/Tacoma Intl
21h 30m
1 stop
MEL10:00Melbourne
9 Dec
MEL08:00Melbourne
26h 48m
2 stops
SEA15:48Seattle/Tacoma Intl
$1,554
Air New Zealand
26 Nov
SEA12:46Seattle/Tacoma Intl
26h 14m
2 stops
MEL10:00Melbourne
10 Dec
MEL09:00Melbourne
22h 12m
2 stops
SEA12:12Seattle/Tacoma Intl
$1,566

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 4 June 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
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

15:58-06:45

1 stop21h 47m

Melbourne

Fri 23/10

09:45-12:16

1 stop20h 31m

$1,496

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 20/10

17:20-09:15

1 stop21h 55m

Melbourne

Fri 27/11

11:30-21:12

2 stops28h 42m

$1,511

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/7

07:00-06:45

1 stop30h 45m

Melbourne

Sat 11/7

09:45-21:45

1 stop29h 00m

$1,513

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 5/10

11:58-06:45

2 stops24h 47m

Melbourne

Tue 13/10

09:45-16:36

1 stop24h 51m

$1,518

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 26/11

07:23-05:00

1 stop26h 37m

Melbourne

Thu 10/12

23:15-12:25

1 stop32h 10m

$1,522

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 30/6

10:29-08:15

1 stop28h 46m

Melbourne

Tue 7/7

10:55-12:34

1 stop18h 39m

$1,525

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 9/11

13:16-10:00

1 stop25h 44m

Melbourne

Fri 20/11

11:30-11:33

1 stop19h 03m

$1,527

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 26/11

10:45-10:00

1 stop28h 15m

Melbourne

Tue 8/12

13:00-12:12

1 stop18h 12m

$1,528

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 30/6

08:56-08:15

2 stops30h 19m

Melbourne

Sat 22/8

10:55-14:24

1 stop20h 29m

$1,532

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/7

08:56-07:30

2 stops29h 34m

Melbourne

Sat 11/7

10:55-21:19

2 stops27h 24m

$1,534

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

What is the cheapest month to fly to Melbourne?

In general, January 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 $136. If you aren’t able to travel to Melbourne during the month of January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $331.

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 $1,754 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 $1,306 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 10m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 20h 10m
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 10m.

  • 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 $1,414Free cancellationRating
7.4
9,774 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