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Cheap flights from Seattle to Melbourne from $690

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 13/8. 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.
Delta Logo
12:36 - 07:50
SEA
-
MEL
26h 14m
1 stop
Delta Logo
10:00 - 20:30
MEL
-
SEA
27h 30m
1 stop
$1,433Delta
Fri, 14 Aug - Fri, 21 Aug
Delta Logo
09:40 - 07:50
SEA
-
MEL
29h 10m
2 stops
Delta Logo
10:00 - 18:44
MEL
-
SEA
25h 44m
2 stops
$1,439Delta
Fri, 14 Aug - Fri, 21 Aug
Delta Logo
20:25 - 07:50
SEA
-
MEL
42h 25m
1 stop
Delta Logo
10:00 - 21:45
MEL
-
SEA
28h 45m
1 stop
$1,443Delta
Sun, 2 Aug - Sun, 30 Aug
Delta Logo
21:45 - 07:50
SEA
-
MEL
41h 05m
1 stop
Delta Logo
10:00 - 14:50
MEL
-
SEA
21h 50m
2 stops
$1,449Delta
Thu, 6 Aug - Sun, 30 Aug
Delta Logo
14:50 - 07:50
SEA
-
MEL
24h 00m
1 stop
Delta Logo
10:00 - 20:30
MEL
-
SEA
27h 30m
1 stop
$1,476Delta
Mon, 3 Aug - Wed, 2 Sep
Delta Logo
17:50 - 07:50
SEA
-
MEL
21h 00m
1 stop
Delta Logo
10:00 - 14:50
MEL
-
SEA
21h 50m
2 stops
$1,482Delta
Mon, 3 Aug - Wed, 2 Sep
Delta Logo
21:46 - 07:50
SEA
-
MEL
41h 04m
1 stop
Delta Logo
10:00 - 16:37
MEL
-
SEA
23h 37m
1 stop
$1,487Delta
Sun, 2 Aug - Wed, 2 Sep
Delta Logo
18:31 - 07:50
SEA
-
MEL
44h 19m
2 stops
Delta Logo
10:00 - 22:05
MEL
-
SEA
29h 05m
2 stops
$1,498Delta
Tue, 4 Aug - Wed, 2 Sep
Multiple Airlines Logo
17:22 - 22:50
SEA
-
AVV
36h 28m
2 stops
Multiple Airlines Logo
20:55 - 19:39
AVV
-
SEA
39h 44m
2 stops
$1,797Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
19:20 - 14:10
SEA
-
AVV
24h 50m
2 stops
Multiple Airlines Logo
06:00 - 14:22
AVV
-
SEA
26h 22m
2 stops
$1,804Multiple Airlines
Mon, 5 Oct - Tue, 13 Oct

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Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets
Delta
14 Aug
SEA12:36Seattle/Tacoma Intl
26h 14m
1 stop
MEL07:50Melbourne
21 Aug
MEL10:00Melbourne
27h 30m
1 stop
SEA20:30Seattle/Tacoma Intl
$1,433
Delta
14 Aug
SEA09:40Seattle/Tacoma Intl
29h 10m
2 stops
MEL07:50Melbourne
21 Aug
MEL10:00Melbourne
25h 44m
2 stops
SEA18:44Seattle/Tacoma Intl
$1,439
Delta
2 Aug
SEA20:25Seattle/Tacoma Intl
42h 25m
1 stop
MEL07:50Melbourne
30 Aug
MEL10:00Melbourne
28h 45m
1 stop
SEA21:45Seattle/Tacoma Intl
$1,443

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
4 Aug
SEA13:30Seattle/Tacoma Intl
25h 45m
1 stop
MEL08:15Melbourne
1 Sept
MEL10:55Melbourne
24h 34m
1 stop
SEA18:29Seattle/Tacoma Intl
$1,579
United Airlines
28 July
SEA11:02Seattle/Tacoma Intl
28h 13m
2 stops
MEL08:15Melbourne
4 Aug
MEL10:55Melbourne
24h 04m
2 stops
SEA17:59Seattle/Tacoma Intl
$1,585
United Airlines
2 Aug
SEA05:15Seattle/Tacoma Intl
34h 00m
1 stop
MEL08:15Melbourne
1 Sept
MEL10:55Melbourne
24h 34m
1 stop
SEA18:29Seattle/Tacoma Intl
$1,588

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 1 July 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

Fri 14/8

12:36-07:50

1 stop26h 14m

Melbourne

Fri 21/8

10:00-20:30

1 stop27h 30m

$1,433

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 14/8

09:40-07:50

2 stops29h 10m

Melbourne

Fri 21/8

10:00-18:44

2 stops25h 44m

$1,439

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 2/8

20:25-07:50

1 stop42h 25m

Melbourne

Sun 30/8

10:00-21:45

1 stop28h 45m

$1,443

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

21:45-07:50

1 stop41h 05m

Melbourne

Sun 30/8

10:00-14:50

2 stops21h 50m

$1,449

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 3/8

14:50-07:50

1 stop24h 00m

Melbourne

Wed 2/9

10:00-20:30

1 stop27h 30m

$1,476
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 3/8

17:50-07:50

1 stop21h 00m

Melbourne

Wed 2/9

10:00-14:50

2 stops21h 50m

$1,482

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 2/8

21:46-07:50

1 stop41h 04m

Melbourne

Wed 2/9

10:00-16:37

1 stop23h 37m

$1,487

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 4/8

18:31-07:50

2 stops44h 19m

Melbourne

Wed 2/9

10:00-22:05

2 stops29h 05m

$1,498

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 7/9

17:22-22:50

2 stops36h 28m

Melbourne Avalon

Mon 14/9

20:55-19:39

2 stops39h 44m

$1,797

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 5/10

19:20-14:10

2 stops24h 50m

Melbourne Avalon

Tue 13/10

06:00-14:22

2 stops26h 22m

$1,804

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 $141. 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 $344.

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 $1,819 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 $1,495 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 51m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 20h 51m
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 51m.

  • 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 $1,467Free cancellationRating
7.4
9,909 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