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Cheap flights from Seattle to Melbourne from $758

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 25/8. 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
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.
Multiple Airlines Logo
11:06 - 09:30
SEA
-
MEL
27h 24m
1 stop
Multiple Airlines Logo
13:45 - 18:26
MEL
-
SEA
23h 41m
2 stops
$1,397Multiple Airlines
Thu, 5 Nov - Wed, 18 Nov
American Airlines Logo
17:02 - 06:45
SEA
-
MEL
20h 43m
1 stop
American Airlines Logo
09:45 - 16:52
MEL
-
SEA
24h 07m
1 stop
$1,453American Airlines
Wed, 19 Aug - Sat, 29 Aug
Delta Logo
12:36 - 07:50
SEA
-
MEL
26h 14m
1 stop
Delta Logo
10:00 - 12:27
MEL
-
SEA
19h 27m
1 stop
$1,478Delta
Wed, 12 Aug - Fri, 21 Aug
United Airlines Logo
17:20 - 08:15
SEA
-
MEL
21h 55m
1 stop
United Airlines Logo
10:55 - 18:29
MEL
-
SEA
24h 34m
1 stop
$1,485United Airlines
Mon, 31 Aug - Mon, 7 Sep
United Airlines Logo
15:30 - 08:15
SEA
-
MEL
23h 45m
1 stop
United Airlines Logo
09:30 - 21:15
MEL
-
SEA
28h 45m
2 stops
$1,485United Airlines
Tue, 18 Aug - Fri, 28 Aug
Delta Logo
13:25 - 07:50
SEA
-
MEL
25h 25m
2 stops
Delta Logo
10:00 - 16:54
MEL
-
SEA
23h 54m
2 stops
$1,485Delta
Wed, 12 Aug - Fri, 21 Aug
American Airlines Logo
17:02 - 06:45
SEA
-
MEL
20h 43m
1 stop
American Airlines Logo
15:40 - 23:29
MEL
-
SEA
24h 49m
2 stops
$1,485American Airlines
Wed, 19 Aug - Sat, 29 Aug
Delta Logo
09:59 - 07:50
SEA
-
MEL
28h 51m
1 stop
Delta Logo
10:00 - 16:54
MEL
-
SEA
23h 54m
2 stops
$1,485Delta
Wed, 12 Aug - Fri, 21 Aug
United Airlines Logo
18:30 - 07:30
SEA
-
MEL
20h 00m
1 stop
United Airlines Logo
10:55 - 18:44
MEL
-
SEA
24h 49m
1 stop
$1,485United Airlines
Mon, 31 Aug - Sat, 26 Sep
United Airlines Logo
13:16 - 08:15
SEA
-
MEL
25h 59m
1 stop
United Airlines Logo
09:30 - 19:14
MEL
-
SEA
26h 44m
1 stop
$1,485United Airlines
Tue, 18 Aug - Fri, 28 Aug

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United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
6 Aug
SEA14:33Seattle/Tacoma Intl
24h 42m
2 stops
MEL08:15Melbourne
19 Aug
MEL10:55Melbourne
24h 34m
1 stop
SEA18:29Seattle/Tacoma Intl
$1,477
United Airlines
4 Aug
SEA17:20Seattle/Tacoma Intl
21h 55m
1 stop
MEL08:15Melbourne
15 Aug
MEL10:55Melbourne
26h 48m
1 stop
SEA20:43Seattle/Tacoma Intl
$1,484
United Airlines
4 Aug
SEA17:20Seattle/Tacoma Intl
21h 55m
1 stop
MEL08:15Melbourne
15 Aug
MEL10:55Melbourne
26h 48m
1 stop
SEA20:43Seattle/Tacoma Intl
$1,485

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
19 Aug
SEA17:02Seattle/Tacoma Intl
20h 43m
1 stop
MEL06:45Melbourne
29 Aug
MEL09:45Melbourne
24h 07m
1 stop
SEA16:52Seattle/Tacoma Intl
$1,453
American Airlines
14 Aug
SEA11:00Seattle/Tacoma Intl
26h 45m
2 stops
MEL06:45Melbourne
27 Aug
MEL09:45Melbourne
23h 47m
1 stop
SEA16:32Seattle/Tacoma Intl
$1,525
American Airlines
12 Aug
SEA11:48Seattle/Tacoma Intl
24h 12m
1 stop
MEL05:00Melbourne
21 Aug
MEL09:45Melbourne
23h 47m
1 stop
SEA16:32Seattle/Tacoma Intl
$1,535

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 1 August 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 5/11

11:06-09:30

1 stop27h 24m

Melbourne

Wed 18/11

13:45-18:26

2 stops23h 41m

$1,397

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 19/8

17:02-06:45

1 stop20h 43m

Melbourne

Sat 29/8

09:45-16:52

1 stop24h 07m

$1,453

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 12/8

12:36-07:50

1 stop26h 14m

Melbourne

Fri 21/8

10:00-12:27

1 stop19h 27m

$1,478

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 31/8

17:20-08:15

1 stop21h 55m

Melbourne

Mon 7/9

10:55-18:29

1 stop24h 34m

$1,485

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 18/8

15:30-08:15

1 stop23h 45m

Melbourne

Fri 28/8

09:30-21:15

2 stops28h 45m

$1,485

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 12/8

13:25-07:50

2 stops25h 25m

Melbourne

Fri 21/8

10:00-16:54

2 stops23h 54m

$1,485

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 19/8

17:02-06:45

1 stop20h 43m

Melbourne

Sat 29/8

15:40-23:29

2 stops24h 49m

$1,485

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 12/8

09:59-07:50

1 stop28h 51m

Melbourne

Fri 21/8

10:00-16:54

2 stops23h 54m

$1,485
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 31/8

18:30-07:30

1 stop20h 00m

Melbourne

Sat 26/9

10:55-18:44

1 stop24h 49m

$1,485

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 18/8

13:16-08:15

1 stop25h 59m

Melbourne

Fri 28/8

09:30-19:14

1 stop26h 44m

$1,485

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,461 to $1,694.
The lowest price recently found on this route was $1,397.

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 $1,471. 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 $1,511.

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 $1,485 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 38m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 19h 38m
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 38m.

  • 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 $1,439Free cancellationRating
7.4
10,062 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