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Cheap flights from Seattle to Melbourne from $748

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 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:03 - 06:45
SEA
-
MEL
27h 42m
1 stop
Multiple Airlines Logo
09:45 - 21:39
MEL
-
SEA
28h 54m
1 stop
$1,386Multiple Airlines
Sat, 15 Aug - Sat, 29 Aug
Multiple Airlines Logo
06:03 - 06:45
SEA
-
MEL
31h 42m
1 stop
Multiple Airlines Logo
09:45 - 12:20
MEL
-
SEA
19h 35m
1 stop
$1,397Multiple Airlines
Sun, 9 Aug - Sun, 23 Aug
Multiple Airlines Logo
17:10 - 06:45
SEA
-
MEL
20h 35m
1 stop
Multiple Airlines Logo
09:45 - 19:39
MEL
-
SEA
26h 54m
1 stop
$1,402Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
18:36 - 10:15
SEA
-
MEL
22h 39m
2 stops
Multiple Airlines Logo
09:45 - 12:48
MEL
-
SEA
20h 03m
1 stop
$1,439Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Multiple Airlines Logo
07:26 - 06:45
SEA
-
MEL
30h 19m
1 stop
Multiple Airlines Logo
16:45 - 23:10
MEL
-
SEA
23h 25m
2 stops
$1,441Multiple Airlines
Sun, 9 Aug - Sun, 23 Aug
Multiple Airlines Logo
16:59 - 06:45
SEA
-
MEL
20h 46m
1 stop
Multiple Airlines Logo
16:30 - 21:25
MEL
-
SEA
22h 55m
2 stops
$1,458Multiple Airlines
Mon, 21 Sep - Sun, 4 Oct
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
$1,489Qantas Airways
Fri, 25 Sep - Fri, 23 Oct
Qantas Airways Logo
17:10 - 06:45
SEA
-
MEL
20h 35m
1 stop
Qantas Airways Logo
09:45 - 22:59
MEL
-
SEA
30h 14m
1 stop
$1,500Qantas Airways
Tue, 11 Aug - Fri, 21 Aug
American Airlines Logo
07:40 - 05:00
SEA
-
MEL
27h 20m
1 stop
American Airlines Logo
09:45 - 12:25
MEL
-
SEA
20h 40m
1 stop
$1,504American Airlines
Mon, 5 Oct - Tue, 13 Oct
American Airlines Logo
11:58 - 06:45
SEA
-
MEL
24h 47m
2 stops
American Airlines Logo
12:00 - 23:05
MEL
-
SEA
30h 05m
1 stop
$1,511American Airlines
Sat, 24 Oct - Sat, 14 Nov

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
2 June
SEA19:05Seattle/Tacoma Intl
20h 10m
1 stop
MEL08:15Melbourne
18 June
MEL10:55Melbourne
39h 27m
1 stop
SEA09:22Seattle/Tacoma Intl
$1,507
United Airlines
7 July
SEA13:30Seattle/Tacoma Intl
25h 45m
1 stop
MEL08:15Melbourne
22 July
MEL09:30Melbourne
28h 40m
2 stops
SEA21:10Seattle/Tacoma Intl
$1,519
United Airlines
1 June
SEA13:30Seattle/Tacoma Intl
25h 45m
1 stop
MEL08:15Melbourne
10 June
MEL10:55Melbourne
20h 35m
1 stop
SEA14:30Seattle/Tacoma Intl
$1,521

Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets
Delta
1 June
SEA12:40Seattle/Tacoma Intl
26h 10m
1 stop
MEL07:50Melbourne
12 June
MEL10:00Melbourne
21h 54m
1 stop
SEA14:54Seattle/Tacoma Intl
$1,530
Delta
22 Oct
SEA19:35Seattle/Tacoma Intl
43h 15m
2 stops
MEL08:50Melbourne
16 Nov
MEL12:00Melbourne
21h 47m
1 stop
SEA14:47Seattle/Tacoma Intl
$1,536
Delta
1 June
SEA09:25Seattle/Tacoma Intl
29h 25m
2 stops
MEL07:50Melbourne
12 June
MEL10:00Melbourne
19h 29m
1 stop
SEA12:29Seattle/Tacoma Intl
$1,537

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 31 May 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 - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 15/8

10:03-06:45

1 stop27h 42m

Melbourne

Sat 29/8

09:45-21:39

1 stop28h 54m

$1,386

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 9/8

06:03-06:45

1 stop31h 42m

Melbourne

Sun 23/8

09:45-12:20

1 stop19h 35m

$1,397

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 12/8

17:10-06:45

1 stop20h 35m

Melbourne

Wed 19/8

09:45-19:39

1 stop26h 54m

$1,402

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 11/8

18:36-10:15

2 stops22h 39m

Melbourne

Tue 18/8

09:45-12:48

1 stop20h 03m

$1,439

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 9/8

07:26-06:45

1 stop30h 19m

Melbourne

Sun 23/8

16:45-23:10

2 stops23h 25m

$1,441

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 21/9

16:59-06:45

1 stop20h 46m

Melbourne

Sun 4/10

16:30-21:25

2 stops22h 55m

$1,458
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

$1,489

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 11/8

17:10-06:45

1 stop20h 35m

Melbourne

Fri 21/8

09:45-22:59

1 stop30h 14m

$1,500

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 5/10

07:40-05:00

1 stop27h 20m

Melbourne

Tue 13/10

09:45-12:25

1 stop20h 40m

$1,504

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 24/10

11:58-06:45

2 stops24h 47m

Melbourne

Sat 14/11

12:00-23:05

1 stop30h 05m

$1,511

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?

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 $135. 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 $330.

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 $1,746 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 $1,299 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 $1,407Free cancellationRating
7.4
9,768 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