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Cheap flights from Seattle to Melbourne from $772

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 27/5. 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

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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
15:20 - 06:45
SEA
-
MEL
21h 25m
1 stop
Multiple Airlines Logo
23:15 - 08:57
MEL
-
SEA
27h 42m
1 stop
$1,397Multiple Airlines
Wed, 21 Oct - Wed, 28 Oct
Multiple Airlines Logo
15:20 - 06:45
SEA
-
MEL
21h 25m
1 stop
Multiple Airlines Logo
15:25 - 21:25
MEL
-
SEA
24h 00m
2 stops
$1,453Multiple Airlines
Wed, 21 Oct - Wed, 28 Oct
Qantas Airways Logo
15:20 - 06:45
SEA
-
MEL
21h 25m
1 stop
Qantas Airways Logo
23:15 - 00:04
MEL
-
SEA
19h 49m
1 stop
$1,483Qantas Airways
Sun, 18 Oct - Fri, 6 Nov
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
$1,484Qantas Airways
Fri, 25 Sep - Fri, 23 Oct
Qantas Airways Logo
17:59 - 05:45
SEA
-
MEL
42h 46m
1 stop
Qantas Airways Logo
09:45 - 12:16
MEL
-
SEA
20h 31m
1 stop
$1,514Qantas Airways
Fri, 2 Oct - Fri, 16 Oct
American Airlines Logo
14:40 - 06:45
SEA
-
MEL
23h 05m
1 stop
American Airlines Logo
09:45 - 13:57
MEL
-
SEA
21h 12m
1 stop
$1,516American Airlines
Wed, 3 Jun - Wed, 17 Jun
American Airlines Logo
14:20 - 06:45
SEA
-
MEL
23h 25m
1 stop
American Airlines Logo
09:45 - 16:32
MEL
-
SEA
23h 47m
1 stop
$1,518American Airlines
Sat, 1 Aug - Sat, 15 Aug
American Airlines Logo
17:02 - 06:45
SEA
-
MEL
20h 43m
1 stop
American Airlines Logo
13:35 - 22:26
MEL
-
SEA
25h 51m
1 stop
$1,519American Airlines
Wed, 12 Aug - Wed, 26 Aug
Singapore Airlines Logo
19:28 - 09:15
SEA
-
MEL
19h 47m
1 stop
Singapore Airlines Logo
13:00 - 12:12
MEL
-
SEA
18h 12m
1 stop
$1,530Singapore Airlines
Sat, 17 Oct - Thu, 5 Nov
United Airlines Logo
13:16 - 09:15
SEA
-
MEL
25h 59m
1 stop
United Airlines Logo
13:00 - 12:12
MEL
-
SEA
18h 12m
1 stop
$1,532United Airlines
Sun, 18 Oct - Sat, 7 Nov

Qantas Airways flights from Seattle to Melbourne

Our best Qantas Airways deals on Seattle to Melbourne flight tickets
Qantas Airways
18 Oct
SEA15:20Seattle/Tacoma Intl
21h 25m
1 stop
MEL06:45Melbourne
6 Nov
MEL23:15Melbourne
19h 49m
1 stop
SEA00:04Seattle/Tacoma Intl
$1,483
Qantas Airways
25 Sept
SEA15:58Seattle/Tacoma Intl
21h 47m
1 stop
MEL06:45Melbourne
23 Oct
MEL09:45Melbourne
20h 31m
1 stop
SEA12:16Seattle/Tacoma Intl
$1,484
Qantas Airways
2 Oct
SEA17:59Seattle/Tacoma Intl
42h 46m
1 stop
MEL05:45Melbourne
16 Oct
MEL09:45Melbourne
20h 31m
1 stop
SEA12:16Seattle/Tacoma Intl
$1,514

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
3 June
SEA14:40Seattle/Tacoma Intl
23h 05m
1 stop
MEL06:45Melbourne
17 June
MEL09:45Melbourne
21h 12m
1 stop
SEA13:57Seattle/Tacoma Intl
$1,516
American Airlines
1 Aug
SEA14:20Seattle/Tacoma Intl
23h 25m
1 stop
MEL06:45Melbourne
15 Aug
MEL09:45Melbourne
23h 47m
1 stop
SEA16:32Seattle/Tacoma Intl
$1,518
American Airlines
12 Aug
SEA17:02Seattle/Tacoma Intl
20h 43m
1 stop
MEL06:45Melbourne
26 Aug
MEL13:35Melbourne
25h 51m
1 stop
SEA22:26Seattle/Tacoma Intl
$1,519

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 21 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

Wed 21/10

15:20-06:45

1 stop21h 25m

Melbourne

Wed 28/10

23:15-08:57

1 stop27h 42m

$1,397

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 21/10

15:20-06:45

1 stop21h 25m

Melbourne

Wed 28/10

15:25-21:25

2 stops24h 00m

$1,453

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 18/10

15:20-06:45

1 stop21h 25m

Melbourne

Fri 6/11

23:15-00:04

1 stop19h 49m

$1,483

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

$1,484

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 2/10

17:59-05:45

1 stop42h 46m

Melbourne

Fri 16/10

09:45-12:16

1 stop20h 31m

$1,514

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 3/6

14:40-06:45

1 stop23h 05m

Melbourne

Wed 17/6

09:45-13:57

1 stop21h 12m

$1,516

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 1/8

14:20-06:45

1 stop23h 25m

Melbourne

Sat 15/8

09:45-16:32

1 stop23h 47m

$1,518

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 12/8

17:02-06:45

1 stop20h 43m

Melbourne

Wed 26/8

13:35-22:26

1 stop25h 51m

$1,519
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 17/10

19:28-09:15

1 stop19h 47m

Melbourne

Thu 5/11

13:00-12:12

1 stop18h 12m

$1,530

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 18/10

13:16-09:15

1 stop25h 59m

Melbourne

Sat 7/11

13:00-12:12

1 stop18h 12m

$1,532

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 $332.

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 $1,780 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 $1,310 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

19h 40m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 19h 40m
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 19h 40m.

  • 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 $1,419Free cancellationRating
7.4
9,737 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