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Cheap flights from Seattle to Melbourne from $803

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.
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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
17:10 - 06:45
SEA
-
MEL
20h 35m
1 stop
Qantas Airways Logo
09:45 - 13:39
MEL
-
SEA
20h 54m
1 stop
$1,442Qantas Airways
Thu, 11 Jun - Wed, 19 Aug
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
$1,462Qantas Airways
Fri, 25 Sep - Fri, 23 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
$1,487Qantas Airways
Wed, 21 Oct - Wed, 11 Nov
American Airlines Logo
06:50 - 06:45
SEA
-
MEL
30h 55m
1 stop
American Airlines Logo
09:45 - 21:45
MEL
-
SEA
29h 00m
1 stop
$1,495American Airlines
Sun, 24 May - Sat, 13 Jun
American Airlines Logo
12:57 - 06:45
SEA
-
MEL
24h 48m
1 stop
American Airlines Logo
09:45 - 16:33
MEL
-
SEA
23h 48m
1 stop
$1,496American Airlines
Mon, 14 Sep - Sat, 3 Oct
United Airlines Logo
15:30 - 09:15
SEA
-
MEL
23h 45m
1 stop
United Airlines Logo
13:00 - 12:12
MEL
-
SEA
18h 12m
1 stop
$1,503United Airlines
Sun, 18 Oct - Tue, 10 Nov
United Airlines Logo
19:05 - 08:15
SEA
-
MEL
20h 10m
1 stop
United Airlines Logo
10:55 - 20:53
MEL
-
SEA
26h 58m
1 stop
$1,510United Airlines
Fri, 12 Jun - Mon, 22 Jun
United Airlines Logo
19:28 - 09:15
SEA
-
MEL
19h 47m
1 stop
United Airlines Logo
12:00 - 18:07
MEL
-
SEA
24h 07m
1 stop
$1,511United Airlines
Sun, 11 Oct - Mon, 26 Oct
Multiple Airlines Logo
11:02 - 08:15
SEA
-
MEL
28h 13m
2 stops
Multiple Airlines Logo
10:55 - 14:30
MEL
-
SEA
20h 35m
1 stop
$1,516Multiple Airlines
Sun, 24 May - Tue, 2 Jun
Multiple Airlines Logo
19:35 - 16:05
SEA
-
AVV
27h 30m
2 stops
Multiple Airlines Logo
06:00 - 12:20
AVV
-
SEA
23h 20m
2 stops
$1,542Multiple Airlines
Sat, 12 Sep - Fri, 25 Sep

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
24 May
SEA06:50Seattle/Tacoma Intl
30h 55m
1 stop
MEL06:45Melbourne
13 June
MEL09:45Melbourne
29h 00m
1 stop
SEA21:45Seattle/Tacoma Intl
$1,495
American Airlines
14 Sept
SEA12:57Seattle/Tacoma Intl
24h 48m
1 stop
MEL06:45Melbourne
3 Oct
MEL09:45Melbourne
23h 48m
1 stop
SEA16:33Seattle/Tacoma Intl
$1,496
American Airlines
20 May
SEA11:11Seattle/Tacoma Intl
26h 34m
2 stops
MEL06:45Melbourne
6 June
MEL09:45Melbourne
21h 12m
1 stop
SEA13:57Seattle/Tacoma Intl
$1,502

Air New Zealand flights from Seattle to Melbourne

Our best Air New Zealand deals on Seattle to Melbourne flight tickets
Air New Zealand
15 May
SEA18:58Seattle/Tacoma Intl
19h 32m
1 stop
MEL07:30Melbourne
27 May
MEL09:30Melbourne
22h 06m
1 stop
SEA14:36Seattle/Tacoma Intl
$1,510
Air New Zealand
12 June
SEA13:30Seattle/Tacoma Intl
25h 45m
1 stop
MEL08:15Melbourne
20 June
MEL18:00Melbourne
37h 39m
2 stops
SEA14:39Seattle/Tacoma Intl
$1,539
Air New Zealand
16 May
SEA16:32Seattle/Tacoma Intl
25h 23m
2 stops
MEL10:55Melbourne
27 May
MEL09:30Melbourne
22h 06m
1 stop
SEA14:36Seattle/Tacoma Intl
$2,792

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 14 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

Thu 11/6

17:10-06:45

1 stop20h 35m

Melbourne

Wed 19/8

09:45-13:39

1 stop20h 54m

$1,442

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

$1,462
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 21/10

15:20-06:45

1 stop21h 25m

Melbourne

Wed 11/11

23:15-00:04

1 stop19h 49m

$1,486

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 24/5

06:50-06:45

1 stop30h 55m

Melbourne

Sat 13/6

09:45-21:45

1 stop29h 00m

$1,495

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 14/9

12:57-06:45

1 stop24h 48m

Melbourne

Sat 3/10

09:45-16:33

1 stop23h 48m

$1,496

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 18/10

15:30-09:15

1 stop23h 45m

Melbourne

Tue 10/11

13:00-12:12

1 stop18h 12m

$1,503

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 12/6

19:05-08:15

1 stop20h 10m

Melbourne

Mon 22/6

10:55-20:53

1 stop26h 58m

$1,510

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 11/10

19:28-09:15

1 stop19h 47m

Melbourne

Mon 26/10

12:00-18:07

1 stop24h 07m

$1,511

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 24/5

11:02-08:15

2 stops28h 13m

Melbourne

Tue 2/6

10:55-14:30

1 stop20h 35m

$1,516

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sat 12/9

19:35-16:05

2 stops27h 30m

Melbourne Avalon

Fri 25/9

06:00-12:20

2 stops23h 20m

$1,542

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 $134. 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 $327.

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 $1,764 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 $1,290 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 28m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 19h 28m
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 28m.

  • 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 $1,397Free cancellationRating
7.4
9,711 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