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Cheap flights from Seattle to Melbourne from $828

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 3/7. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
Philippine Airlines Logo
23:55 - 07:20
SEA
-
MEL
36h 25m
1 stop
Philippine Airlines Logo
09:00 - 19:35
MEL
-
SEA
29h 35m
1 stop
$1,394Philippine Airlines
Sun, 15 Nov - Sun, 29 Nov
Qantas Airways Logo
17:55 - 09:30
SEA
-
MEL
20h 35m
1 stop
Qantas Airways Logo
18:30 - 12:25
MEL
-
SEA
36h 55m
2 stops
$1,395Qantas Airways
Tue, 1 Dec - Wed, 9 Dec
American Airlines Logo
14:20 - 06:45
SEA
-
MEL
23h 25m
1 stop
American Airlines Logo
13:35 - 20:05
MEL
-
SEA
23h 30m
1 stop
$1,520American Airlines
Sat, 25 Jul - Sat, 1 Aug
American Airlines Logo
14:40 - 06:45
SEA
-
MEL
23h 05m
1 stop
American Airlines Logo
09:45 - 13:48
MEL
-
SEA
21h 03m
1 stop
$1,530American Airlines
Wed, 1 Jul - Thu, 9 Jul
American Airlines Logo
14:40 - 06:45
SEA
-
MEL
23h 05m
1 stop
American Airlines Logo
09:45 - 13:48
MEL
-
SEA
21h 03m
1 stop
$1,531American Airlines
Wed, 1 Jul - Thu, 9 Jul
United Airlines Logo
19:05 - 08:15
SEA
-
MEL
20h 10m
1 stop
United Airlines Logo
10:55 - 12:34
MEL
-
SEA
18h 39m
1 stop
$1,546United Airlines
Wed, 1 Jul - Sat, 11 Jul
United Airlines Logo
10:55 - 09:15
SEA
-
MEL
28h 20m
1 stop
United Airlines Logo
11:55 - 12:23
MEL
-
SEA
18h 28m
1 stop
$1,547United Airlines
Mon, 5 Oct - Tue, 13 Oct
Multiple Airlines Logo
12:50 - 08:15
SEA
-
MEL
26h 25m
2 stops
Multiple Airlines Logo
10:55 - 12:34
MEL
-
SEA
18h 39m
1 stop
$1,551Multiple Airlines
Tue, 30 Jun - Thu, 30 Jul
Delta Logo
12:36 - 07:50
SEA
-
MEL
26h 14m
1 stop
Delta Logo
11:00 - 22:11
MEL
-
SEA
29h 11m
1 stop
$1,557Delta
Fri, 25 Sep - Fri, 23 Oct
Multiple Airlines Logo
19:20 - 14:10
SEA
-
AVV
24h 50m
2 stops
Multiple Airlines Logo
06:00 - 14:22
AVV
-
SEA
26h 22m
2 stops
$1,802Multiple Airlines
Mon, 5 Oct - Tue, 13 Oct

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Philippine Airlines flights from Seattle to Melbourne

Our best Philippine Airlines deals on Seattle to Melbourne flight tickets
Philippine Airlines
15 Nov
SEA23:55Seattle/Tacoma Intl
36h 25m
1 stop
MEL07:20Melbourne
29 Nov
MEL09:00Melbourne
29h 35m
1 stop
SEA19:35Seattle/Tacoma Intl
$1,394
Philippine Airlines
15 Nov
SEA23:55Seattle/Tacoma Intl
36h 25m
1 stop
MEL07:20Melbourne
29 Nov
MEL09:00Melbourne
29h 35m
1 stop
SEA19:35Seattle/Tacoma Intl
$1,720
Philippine Airlines
18 June
SEA23:10Seattle/Tacoma Intl
38h 20m
1 stop
MEL06:30Melbourne
3 July
MEL08:00Melbourne
29h 05m
1 stop
SEA20:05Seattle/Tacoma Intl
$9,317

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
1 July
SEA19:05Seattle/Tacoma Intl
20h 10m
1 stop
MEL08:15Melbourne
11 July
MEL10:55Melbourne
18h 39m
1 stop
SEA12:34Seattle/Tacoma Intl
$1,546
United Airlines
5 Oct
SEA10:55Seattle/Tacoma Intl
28h 20m
1 stop
MEL09:15Melbourne
13 Oct
MEL11:55Melbourne
18h 28m
1 stop
SEA12:23Seattle/Tacoma Intl
$1,547
United Airlines
1 July
SEA11:02Seattle/Tacoma Intl
28h 13m
2 stops
MEL08:15Melbourne
9 July
MEL10:55Melbourne
18h 39m
1 stop
SEA12:34Seattle/Tacoma Intl
$1,553

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 15 June 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

Sun 15/11

23:55-07:20

1 stop36h 25m

Melbourne

Sun 29/11

09:00-19:35

1 stop29h 35m

$1,394

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 1/12

17:55-09:30

1 stop20h 35m

Melbourne

Wed 9/12

18:30-12:25

2 stops36h 55m

$1,395

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 25/7

14:20-06:45

1 stop23h 25m

Melbourne

Sat 1/8

13:35-20:05

1 stop23h 30m

$1,520

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 1/7

14:40-06:45

1 stop23h 05m

Melbourne

Thu 9/7

09:45-13:48

1 stop21h 03m

$1,530

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 1/7

14:40-06:45

1 stop23h 05m

Melbourne

Thu 9/7

09:45-13:48

1 stop21h 03m

$1,531
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 1/7

19:05-08:15

1 stop20h 10m

Melbourne

Sat 11/7

10:55-12:34

1 stop18h 39m

$1,546

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 5/10

10:55-09:15

1 stop28h 20m

Melbourne

Tue 13/10

11:55-12:23

1 stop18h 28m

$1,547

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 30/6

12:50-08:15

2 stops26h 25m

Melbourne

Thu 30/7

10:55-12:34

1 stop18h 39m

$1,551

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

12:36-07:50

1 stop26h 14m

Melbourne

Fri 23/10

11:00-22:11

1 stop29h 11m

$1,557

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 5/10

19:20-14:10

2 stops24h 50m

Melbourne Avalon

Tue 13/10

06:00-14:22

2 stops26h 22m

$1,802

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 $138. 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 $336.

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 $1,788 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 $1,324 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

20h 10m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 20h 10m
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 20h 10m.

  • 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 $1,434Free cancellationRating
7.4
9,831 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