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Cheap flights from Seattle to Melbourne from $792

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 16/5. 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.
Qantas Airways Logo
15:55 - 06:45
SEA
-
MEL
21h 50m
1 stop
Qantas Airways Logo
09:45 - 12:16
MEL
-
SEA
20h 31m
1 stop
$1,471Qantas Airways
Fri, 25 Sep - Fri, 23 Oct
Multiple Airlines Logo
15:55 - 06:45
SEA
-
MEL
21h 50m
1 stop
Multiple Airlines Logo
09:45 - 12:16
MEL
-
SEA
20h 31m
1 stop
$1,480Multiple Airlines
Fri, 25 Sep - Fri, 23 Oct
American Airlines Logo
11:40 - 06:45
SEA
-
MEL
26h 05m
2 stops
American Airlines Logo
09:45 - 16:32
MEL
-
SEA
23h 47m
1 stop
$1,494American Airlines
Fri, 24 Jul - Tue, 11 Aug
Multiple Airlines Logo
15:50 - 06:45
SEA
-
MEL
21h 55m
1 stop
Multiple Airlines Logo
09:45 - 16:36
MEL
-
SEA
23h 51m
1 stop
$1,504Multiple Airlines
Mon, 18 May - Fri, 29 May
American Airlines Logo
11:25 - 06:45
SEA
-
MEL
26h 20m
1 stop
American Airlines Logo
09:45 - 16:32
MEL
-
SEA
23h 47m
1 stop
$1,505American Airlines
Thu, 6 Aug - Thu, 13 Aug
United Airlines Logo
18:58 - 07:30
SEA
-
MEL
19h 32m
1 stop
United Airlines Logo
10:55 - 23:32
MEL
-
SEA
29h 37m
1 stop
$1,515United Airlines
Fri, 15 May - Thu, 28 May
United Airlines Logo
12:34 - 07:30
SEA
-
MEL
25h 56m
1 stop
United Airlines Logo
09:30 - 21:10
MEL
-
SEA
28h 40m
2 stops
$1,519United Airlines
Mon, 18 May - Fri, 29 May
American Airlines Logo
06:10 - 06:45
SEA
-
MEL
31h 35m
1 stop
American Airlines Logo
09:45 - 17:44
MEL
-
SEA
24h 59m
2 stops
$1,521American Airlines
Mon, 18 May - Thu, 28 May
United Airlines Logo
12:51 - 08:15
SEA
-
MEL
26h 24m
2 stops
United Airlines Logo
09:30 - 14:36
MEL
-
SEA
22h 06m
1 stop
$1,526United Airlines
Tue, 19 May - Wed, 3 Jun
United Airlines Logo
08:45 - 08:15
SEA
-
MEL
30h 30m
1 stop
United Airlines Logo
10:55 - 16:29
MEL
-
SEA
22h 34m
1 stop
$1,529United Airlines
Sun, 31 May - Sun, 7 Jun

Qantas Airways flights from Seattle to Melbourne

Our best Qantas Airways deals on Seattle to Melbourne flight tickets
Qantas Airways
25 Sept
SEA15:55Seattle/Tacoma Intl
21h 50m
1 stop
MEL06:45Melbourne
23 Oct
MEL09:45Melbourne
20h 31m
1 stop
SEA12:16Seattle/Tacoma Intl
$1,471
Qantas Airways
1 Sept
SEA17:02Seattle/Tacoma Intl
28h 18m
2 stops
AVV14:20Melbourne Avalon
16 Sept
AVV10:30Melbourne Avalon
28h 22m
2 stops
SEA21:52Seattle/Tacoma Intl
$2,845
Qantas Airways
7 Sept
SEA07:20Seattle/Tacoma Intl
22h 30m
2 stops
AVV22:50Melbourne Avalon
14 Sept
AVV20:55Melbourne Avalon
39h 47m
2 stops
SEA19:42Seattle/Tacoma Intl
$3,165

Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets
Delta
5 Oct
SEA09:30Seattle/Tacoma Intl
29h 20m
1 stop
MEL08:50Melbourne
13 Oct
MEL11:00Melbourne
21h 47m
1 stop
SEA14:47Seattle/Tacoma Intl
$1,531
Delta
25 Sept
SEA09:40Seattle/Tacoma Intl
29h 10m
2 stops
MEL07:50Melbourne
23 Oct
MEL11:00Melbourne
23h 53m
2 stops
SEA16:53Seattle/Tacoma Intl
$1,536
Delta
25 Sept
SEA11:25Seattle/Tacoma Intl
27h 25m
2 stops
MEL07:50Melbourne
23 Oct
MEL11:00Melbourne
20h 00m
1 stop
SEA13:00Seattle/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 5 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
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

15:55-06:45

1 stop21h 50m

Melbourne

Fri 23/10

09:45-12:16

1 stop20h 31m

$1,471

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

15:55-06:45

1 stop21h 50m

Melbourne

Fri 23/10

09:45-12:16

1 stop20h 31m

$1,480

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 24/7

11:40-06:45

2 stops26h 05m

Melbourne

Tue 11/8

09:45-16:32

1 stop23h 47m

$1,494

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 18/5

15:50-06:45

1 stop21h 55m

Melbourne

Fri 29/5

09:45-16:36

1 stop23h 51m

$1,504

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

11:25-06:45

1 stop26h 20m

Melbourne

Thu 13/8

09:45-16:32

1 stop23h 47m

$1,505

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 15/5

18:58-07:30

1 stop19h 32m

Melbourne

Thu 28/5

10:55-23:32

1 stop29h 37m

$1,515

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 18/5

12:34-07:30

1 stop25h 56m

Melbourne

Fri 29/5

09:30-21:10

2 stops28h 40m

$1,519

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 18/5

06:10-06:45

1 stop31h 35m

Melbourne

Thu 28/5

09:45-17:44

2 stops24h 59m

$1,521

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 19/5

12:51-08:15

2 stops26h 24m

Melbourne

Wed 3/6

09:30-14:36

1 stop22h 06m

$1,526

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 31/5

08:45-08:15

1 stop30h 30m

Melbourne

Sun 7/6

10:55-16:29

1 stop22h 34m

$1,529

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 $1,846 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 $1,300 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

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 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 $1,407Free cancellationRating
7.4
9,683 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