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Cheap flights from Seattle to Melbourne from $667

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 3/6. 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
19:20 - 14:20
SEA
-
AVV
26h 00m
2 stops
Multiple Airlines Logo
20:55 - 09:52
AVV
-
SEA
29h 57m
2 stops
$1,488Multiple Airlines
Tue, 23 Jun - Sun, 19 Jul
Multiple Airlines Logo
19:20 - 14:20
SEA
-
AVV
26h 00m
2 stops
Multiple Airlines Logo
20:55 - 09:52
AVV
-
SEA
29h 57m
2 stops
$1,489Multiple Airlines
Tue, 23 Jun - Sun, 19 Jul
Air Canada Logo
19:20 - 11:35
SEA
-
MEL
23h 15m
2 stops
Air Canada Logo
06:00 - 09:52
MEL
-
SEA
20h 52m
2 stops
$1,494Air Canada
Mon, 14 Sep - Mon, 28 Sep
Multiple Airlines Logo
19:20 - 14:10
SEA
-
MEL
25h 50m
2 stops
Multiple Airlines Logo
18:25 - 09:52
MEL
-
SEA
32h 27m
2 stops
$1,507Multiple Airlines
Tue, 23 Jun - Sun, 19 Jul
Multiple Airlines Logo
19:20 - 14:10
SEA
-
MEL
25h 50m
2 stops
Multiple Airlines Logo
06:00 - 18:32
MEL
-
SEA
29h 32m
2 stops
$1,508Multiple Airlines
Sun, 16 Aug - Tue, 1 Sep
Multiple Airlines Logo
15:00 - 14:10
SEA
-
MEL
30h 10m
2 stops
Multiple Airlines Logo
20:50 - 09:52
MEL
-
SEA
30h 02m
2 stops
$1,510Multiple Airlines
Wed, 9 Sep - Sun, 13 Sep
Multiple Airlines Logo
19:20 - 12:35
SEA
-
MEL
24h 15m
2 stops
Multiple Airlines Logo
06:00 - 09:52
MEL
-
SEA
20h 52m
2 stops
$1,511Multiple Airlines
Tue, 8 Sep - Mon, 14 Sep
Multiple Airlines Logo
19:20 - 14:20
SEA
-
MEL
26h 00m
2 stops
Multiple Airlines Logo
20:40 - 18:32
MEL
-
SEA
38h 52m
2 stops
$1,515Multiple Airlines
Sun, 16 Aug - Mon, 31 Aug
Multiple Airlines Logo
19:20 - 11:20
SEA
-
MEL
23h 00m
2 stops
Multiple Airlines Logo
21:40 - 10:05
MEL
-
SEA
29h 25m
2 stops
$1,517Multiple Airlines
Sun, 24 May - Sun, 14 Jun
Air Canada Logo
15:00 - 11:05
SEA
-
MEL
27h 05m
2 stops
Air Canada Logo
07:10 - 09:52
MEL
-
SEA
20h 42m
2 stops
$1,518Air Canada
Fri, 25 Sep - Fri, 23 Oct

Air Canada flights from Seattle to Melbourne

Our best Air Canada deals on Seattle to Melbourne flight tickets
Air Canada
14 Sept
SEA19:20Seattle/Tacoma Intl
23h 15m
2 stops
MEL11:35Melbourne
28 Sept
MEL06:00Melbourne
20h 52m
2 stops
SEA09:52Seattle/Tacoma Intl
$1,494
Air Canada
25 Sept
SEA15:00Seattle/Tacoma Intl
27h 05m
2 stops
MEL11:05Melbourne
23 Oct
MEL07:10Melbourne
20h 42m
2 stops
SEA09:52Seattle/Tacoma Intl
$1,518
Air Canada
25 Sept
SEA19:20Seattle/Tacoma Intl
22h 45m
2 stops
MEL11:05Melbourne
23 Oct
MEL07:10Melbourne
20h 42m
2 stops
SEA09:52Seattle/Tacoma Intl
$1,520

Qantas Airways flights from Seattle to Melbourne

Our best Qantas Airways deals on Seattle to Melbourne flight tickets
Qantas Airways
12 Aug
SEA16:49Seattle/Tacoma Intl
26h 16m
2 stops
MEL12:05Melbourne
1 Sept
MEL06:00Melbourne
30h 42m
2 stops
SEA19:42Seattle/Tacoma Intl
$1,854
Qantas Airways
16 Aug
SEA16:49Seattle/Tacoma Intl
28h 21m
2 stops
AVV14:10Melbourne Avalon
1 Sept
AVV08:50Melbourne Avalon
30h 56m
2 stops
SEA22:46Seattle/Tacoma Intl
$2,987
Qantas Airways
19 Aug
SEA17:55Seattle/Tacoma Intl
27h 15m
2 stops
AVV14:10Melbourne Avalon
15 Sept
AVV16:40Melbourne Avalon
22h 33m
2 stops
SEA22:13Seattle/Tacoma Intl
$2,996

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 March 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 - AVV

SEAAVV

Seattle/Tacoma Intl

Tue 23/6

19:20-14:20

2 stops26h 00m

Melbourne Avalon

Sun 19/7

20:55-09:52

2 stops29h 57m

$1,488

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Tue 23/6

19:20-14:20

2 stops26h 00m

Melbourne Avalon

Sun 19/7

20:55-09:52

2 stops29h 57m

$1,489
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 14/9

19:20-11:35

2 stops23h 15m

Melbourne

Mon 28/9

06:00-09:52

2 stops20h 52m

$1,494

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 23/6

19:20-14:10

2 stops25h 50m

Melbourne

Sun 19/7

18:25-09:52

2 stops32h 27m

$1,507

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 16/8

19:20-14:10

2 stops25h 50m

Melbourne

Tue 1/9

06:00-18:32

2 stops29h 32m

$1,508

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 9/9

15:00-14:10

2 stops30h 10m

Melbourne

Sun 13/9

20:50-09:52

2 stops30h 02m

$1,510

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 8/9

19:20-12:35

2 stops24h 15m

Melbourne

Mon 14/9

06:00-09:52

2 stops20h 52m

$1,511

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 16/8

19:20-14:20

2 stops26h 00m

Melbourne

Mon 31/8

20:40-18:32

2 stops38h 52m

$1,515

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 24/5

19:20-11:20

2 stops23h 00m

Melbourne

Sun 14/6

21:40-10:05

2 stops29h 25m

$1,517

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

15:00-11:05

2 stops27h 05m

Melbourne

Fri 23/10

07:10-09:52

2 stops20h 42m

$1,518

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, February 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 $1,542. If you aren’t able to travel to Melbourne during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,562.

How far in advance should I book a flight 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 $1,893 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 $1,362 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

21h 50m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 21h 50m
There are no direct flights from Seattle to Melbourne. There are no popular flight routes from Seattle to Melbourne.
Search flight deals

  • 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 21h 50m.

  • 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 $1,475Free cancellationRating
7.4
9,525 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