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Cheap flights from Seattle to Melbourne from $800

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 23/5. 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
19:20 - 11:20
SEA
-
MEL
23h 00m
2 stops
Multiple Airlines Logo
06:00 - 10:05
MEL
-
SEA
21h 05m
2 stops
$1,475Multiple Airlines
Tue, 12 May - Tue, 19 May
United Airlines Logo
17:25 - 08:15
SEA
-
MEL
21h 50m
1 stop
United Airlines Logo
09:30 - 15:51
MEL
-
SEA
23h 21m
1 stop
$1,522United Airlines
Wed, 6 May - Sun, 17 May
United Airlines Logo
13:19 - 08:15
SEA
-
MEL
25h 56m
1 stop
United Airlines Logo
10:55 - 12:23
MEL
-
SEA
18h 28m
1 stop
$1,524United Airlines
Sun, 16 Aug - Wed, 2 Sep
United Airlines Logo
18:58 - 07:30
SEA
-
MEL
19h 32m
1 stop
United Airlines Logo
10:55 - 21:06
MEL
-
SEA
27h 11m
2 stops
$1,528United Airlines
Fri, 1 May - Sat, 9 May
United Airlines Logo
12:51 - 08:15
SEA
-
MEL
26h 24m
2 stops
United Airlines Logo
10:55 - 18:47
MEL
-
SEA
24h 52m
1 stop
$1,529United Airlines
Mon, 18 May - Mon, 25 May
Multiple Airlines Logo
19:20 - 11:05
SEA
-
MEL
22h 45m
2 stops
Multiple Airlines Logo
06:05 - 09:52
MEL
-
SEA
21h 47m
2 stops
$1,538Multiple Airlines
Fri, 25 Sep - Fri, 23 Oct
Delta Logo
21:20 - 07:50
SEA
-
MEL
41h 30m
1 stop
Delta Logo
10:00 - 12:21
MEL
-
SEA
19h 21m
1 stop
$1,543Delta
Sun, 24 May - Fri, 5 Jun
Multiple Airlines Logo
18:10 - 12:00
SEA
-
MEL
24h 50m
2 stops
Multiple Airlines Logo
13:30 - 18:26
MEL
-
SEA
21h 56m
2 stops
$1,548Multiple Airlines
Tue, 28 Jul - Mon, 24 Aug
Multiple Airlines Logo
15:48 - 12:05
SEA
-
MEL
27h 17m
2 stops
Multiple Airlines Logo
13:25 - 18:56
MEL
-
SEA
22h 31m
2 stops
$1,549Multiple Airlines
Wed, 13 May - Wed, 20 May
United Airlines Logo
17:25 - 08:15
SEA
-
MEL
21h 50m
1 stop
United Airlines Logo
10:00 - 14:36
MEL
-
SEA
45h 36m
2 stops
$1,552United Airlines
Wed, 20 May - Tue, 26 May

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
22 Apr
SEA17:45Seattle/Tacoma Intl
21h 30m
1 stop
MEL08:15Melbourne
13 May
MEL09:30Melbourne
19h 07m
1 stop
SEA11:37Seattle/Tacoma Intl
$1,515
United Airlines
6 May
SEA17:25Seattle/Tacoma Intl
21h 50m
1 stop
MEL08:15Melbourne
17 May
MEL09:30Melbourne
23h 21m
1 stop
SEA15:51Seattle/Tacoma Intl
$1,522
United Airlines
16 Aug
SEA13:19Seattle/Tacoma Intl
25h 56m
1 stop
MEL08:15Melbourne
2 Sept
MEL10:55Melbourne
18h 28m
1 stop
SEA12:23Seattle/Tacoma Intl
$1,524

Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets
Delta
24 May
SEA21:20Seattle/Tacoma Intl
41h 30m
1 stop
MEL07:50Melbourne
5 June
MEL10:00Melbourne
19h 21m
1 stop
SEA12:21Seattle/Tacoma Intl
$1,543
Delta
14 Aug
SEA07:20Seattle/Tacoma Intl
31h 30m
2 stops
MEL07:50Melbourne
30 Aug
MEL10:00Melbourne
19h 58m
1 stop
SEA12:58Seattle/Tacoma Intl
$1,715

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 19 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
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 12/5

19:20-11:20

2 stops23h 00m

Melbourne

Tue 19/5

06:00-10:05

2 stops21h 05m

$1,475

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 6/5

17:25-08:15

1 stop21h 50m

Melbourne

Sun 17/5

09:30-15:51

1 stop23h 21m

$1,522

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 16/8

13:19-08:15

1 stop25h 56m

Melbourne

Wed 2/9

10:55-12:23

1 stop18h 28m

$1,524

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 1/5

18:58-07:30

1 stop19h 32m

Melbourne

Sat 9/5

10:55-21:06

2 stops27h 11m

$1,528

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 18/5

12:51-08:15

2 stops26h 24m

Melbourne

Mon 25/5

10:55-18:47

1 stop24h 52m

$1,529

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

19:20-11:05

2 stops22h 45m

Melbourne

Fri 23/10

06:05-09:52

2 stops21h 47m

$1,538

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 24/5

21:20-07:50

1 stop41h 30m

Melbourne

Fri 5/6

10:00-12:21

1 stop19h 21m

$1,543

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 28/7

18:10-12:00

2 stops24h 50m

Melbourne

Mon 24/8

13:30-18:26

2 stops21h 56m

$1,548

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 13/5

15:48-12:05

2 stops27h 17m

Melbourne

Wed 20/5

13:25-18:56

2 stops22h 31m

$1,549

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 20/5

17:25-08:15

1 stop21h 50m

Melbourne

Tue 26/5

10:00-14:36

2 stops45h 36m

$1,552

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, March 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 $1,442. If you aren’t able to travel to Melbourne during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,474.

How far in advance should I book a flight 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 $1,858 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 $1,302 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 32m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 19h 32m
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 32m.

  • 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 $1,410Free cancellationRating
7.4
9,604 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