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Cheap flights from Seattle to Melbourne from $763

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 30/8. 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

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Find the cheapest flights from Seattle to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
17:05 - 06:45
SEA
-
MEL
20h 40m
1 stop
American Airlines Logo
09:45 - 16:36
MEL
-
SEA
24h 51m
1 stop
$1,506American Airlines
Fri, 25 Sep - Fri, 23 Oct
American Airlines Logo
06:50 - 06:45
SEA
-
MEL
30h 55m
1 stop
American Airlines Logo
09:45 - 17:44
MEL
-
SEA
24h 59m
2 stops
$1,513American Airlines
Wed, 27 May - Wed, 3 Jun
American Airlines Logo
06:10 - 06:45
SEA
-
MEL
31h 35m
1 stop
American Airlines Logo
09:45 - 13:57
MEL
-
SEA
21h 12m
1 stop
$1,517American Airlines
Thu, 14 May - Thu, 21 May
United Airlines Logo
19:35 - 08:15
SEA
-
MEL
19h 40m
1 stop
United Airlines Logo
10:55 - 16:15
MEL
-
SEA
22h 20m
1 stop
$1,521United Airlines
Fri, 14 Aug - Sat, 29 Aug
United Airlines Logo
12:50 - 08:15
SEA
-
MEL
26h 25m
2 stops
United Airlines Logo
10:55 - 14:30
MEL
-
SEA
20h 35m
1 stop
$1,528United Airlines
Tue, 9 Jun - Tue, 16 Jun
Delta Logo
14:30 - 08:50
SEA
-
MEL
24h 20m
1 stop
Delta Logo
11:00 - 14:47
MEL
-
SEA
21h 47m
1 stop
$1,533Delta
Mon, 5 Oct - Tue, 13 Oct
Delta Logo
15:00 - 07:50
SEA
-
MEL
23h 50m
1 stop
Delta Logo
10:00 - 22:05
MEL
-
SEA
29h 05m
2 stops
$1,538Delta
Mon, 1 Jun - Wed, 10 Jun
Multiple Airlines Logo
19:20 - 14:20
SEA
-
AVV
26h 00m
2 stops
Multiple Airlines Logo
16:40 - 10:05
AVV
-
SEA
34h 25m
2 stops
$1,648Multiple Airlines
Mon, 1 Jun - Sat, 6 Jun
Multiple Airlines Logo
19:20 - 14:20
SEA
-
AVV
26h 00m
2 stops
Multiple Airlines Logo
16:40 - 10:05
AVV
-
SEA
34h 25m
2 stops
$1,874Multiple Airlines
Wed, 3 Jun - Sat, 13 Jun
Qantas Airways Logo
07:20 - 22:50
SEA
-
AVV
22h 30m
2 stops
Qantas Airways Logo
20:55 - 23:10
AVV
-
SEA
43h 15m
2 stops
$2,850Qantas Airways
Mon, 7 Sep - Mon, 14 Sep

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
30 July
SEA07:00Seattle/Tacoma Intl
30h 45m
1 stop
MEL06:45Melbourne
25 Aug
MEL09:45Melbourne
30h 36m
1 stop
SEA23:21Seattle/Tacoma Intl
$1,496
American Airlines
25 Sept
SEA17:05Seattle/Tacoma Intl
20h 40m
1 stop
MEL06:45Melbourne
23 Oct
MEL09:45Melbourne
24h 51m
1 stop
SEA16:36Seattle/Tacoma Intl
$1,506
American Airlines
27 May
SEA06:50Seattle/Tacoma Intl
30h 55m
1 stop
MEL06:45Melbourne
3 June
MEL09:45Melbourne
24h 59m
2 stops
SEA17:44Seattle/Tacoma Intl
$1,513

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
1 Aug
SEA19:05Seattle/Tacoma Intl
20h 10m
1 stop
MEL08:15Melbourne
25 Aug
MEL10:55Melbourne
20h 27m
1 stop
SEA14:22Seattle/Tacoma Intl
$1,512
United Airlines
14 Aug
SEA19:35Seattle/Tacoma Intl
19h 40m
1 stop
MEL08:15Melbourne
1 Sept
MEL10:55Melbourne
20h 27m
1 stop
SEA14:22Seattle/Tacoma Intl
$1,521
United Airlines
9 June
SEA12:50Seattle/Tacoma Intl
26h 25m
2 stops
MEL08:15Melbourne
16 June
MEL10:55Melbourne
20h 35m
1 stop
SEA14:30Seattle/Tacoma Intl
$1,528

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 28 April 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 25/9

17:05-06:45

1 stop20h 40m

Melbourne

Fri 23/10

09:45-16:36

1 stop24h 51m

$1,506

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 27/5

06:50-06:45

1 stop30h 55m

Melbourne

Wed 3/6

09:45-17:44

2 stops24h 59m

$1,513

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 14/5

06:10-06:45

1 stop31h 35m

Melbourne

Thu 21/5

09:45-13:57

1 stop21h 12m

$1,517
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 14/8

19:35-08:15

1 stop19h 40m

Melbourne

Sat 29/8

10:55-16:15

1 stop22h 20m

$1,521

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 9/6

12:50-08:15

2 stops26h 25m

Melbourne

Tue 16/6

10:55-14:30

1 stop20h 35m

$1,528

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 5/10

14:30-08:50

1 stop24h 20m

Melbourne

Tue 13/10

11:00-14:47

1 stop21h 47m

$1,533

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 1/6

15:00-07:50

1 stop23h 50m

Melbourne

Wed 10/6

10:00-22:05

2 stops29h 05m

$1,538

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 1/6

19:20-14:20

2 stops26h 00m

Melbourne Avalon

Sat 6/6

16:40-10:05

2 stops34h 25m

$1,648

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Wed 3/6

19:20-14:20

2 stops26h 00m

Melbourne Avalon

Sat 13/6

16:40-10:05

2 stops34h 25m

$1,874

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 7/9

07:20-22:50

2 stops22h 30m

Melbourne Avalon

Mon 14/9

20:55-23:10

2 stops43h 15m

$2,850

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 $1,862 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 $1,301 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 24m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 21h 24m
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 24m.

  • 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 $1,409Free cancellationRating
7.4
9,672 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