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Cheap flights from Seattle to Melbourne from $548

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 8/30. 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
0 bags

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Find the cheapest flights from Seattle to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:05 pm - 6:45 am
SEA
-
MEL
20h 40m
1 stop
American Airlines Logo
9:45 am - 4:36 pm
MEL
-
SEA
24h 51m
1 stop
$1,081American Airlines
Fri, Sep 25 - Fri, Oct 23
Multiple Airlines Logo
5:55 pm - 1:00 pm
SEA
-
MEL
25h 05m
2 stops
Multiple Airlines Logo
2:30 pm - 6:56 pm
MEL
-
SEA
22h 26m
2 stops
$1,085Multiple Airlines
Thu, Oct 15 - Fri, Oct 23
American Airlines Logo
11:03 am - 6:45 am
SEA
-
MEL
26h 42m
2 stops
American Airlines Logo
9:45 am - 5:44 pm
MEL
-
SEA
24h 59m
2 stops
$1,086American Airlines
Wed, May 27 - Wed, Jun 3
American Airlines Logo
6:10 am - 6:45 am
SEA
-
MEL
31h 35m
1 stop
American Airlines Logo
9:45 am - 1:57 pm
MEL
-
SEA
21h 12m
1 stop
$1,089American Airlines
Thu, May 14 - Thu, May 21
United Airlines Logo
7:35 pm - 8:15 am
SEA
-
MEL
19h 40m
1 stop
United Airlines Logo
10:55 am - 4:15 pm
MEL
-
SEA
22h 20m
1 stop
$1,092United Airlines
Fri, Aug 14 - Sat, Aug 29
American Airlines Logo
6:10 am - 6:45 am
SEA
-
MEL
31h 35m
1 stop
American Airlines Logo
9:45 am - 5:44 pm
MEL
-
SEA
24h 59m
2 stops
$1,093American Airlines
Thu, May 14 - Thu, May 21
United Airlines Logo
12:50 pm - 8:15 am
SEA
-
MEL
26h 25m
2 stops
United Airlines Logo
10:55 am - 2:30 pm
MEL
-
SEA
20h 35m
1 stop
$1,097United Airlines
Tue, Jun 9 - Tue, Jun 16
Delta Logo
2:30 pm - 8:50 am
SEA
-
MEL
24h 20m
1 stop
Delta Logo
11:00 am - 2:47 pm
MEL
-
SEA
21h 47m
1 stop
$1,100Delta
Mon, Oct 5 - Tue, Oct 13
Delta Logo
3:00 pm - 7:50 am
SEA
-
MEL
23h 50m
1 stop
Delta Logo
10:00 am - 10:05 pm
MEL
-
SEA
29h 05m
2 stops
$1,104Delta
Mon, Jun 1 - Wed, Jun 10
American Airlines Logo
11:25 am - 6:45 am
SEA
-
MEL
26h 20m
1 stop
American Airlines Logo
4:35 pm - 11:21 pm
MEL
-
SEA
23h 46m
2 stops
$1,106American Airlines
Mon, Aug 17 - Mon, Aug 31

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
Sep 25
SEA5:05 pmSeattle/Tacoma Intl
20h 40m
1 stop
MEL6:45 amMelbourne
Oct 23
MEL9:45 amMelbourne
24h 51m
1 stop
SEA4:36 pmSeattle/Tacoma Intl
$1,081
American Airlines
May 27
SEA11:03 amSeattle/Tacoma Intl
26h 42m
2 stops
MEL6:45 amMelbourne
Jun 3
MEL9:45 amMelbourne
24h 59m
2 stops
SEA5:44 pmSeattle/Tacoma Intl
$1,086
American Airlines
May 14
SEA6:10 amSeattle/Tacoma Intl
31h 35m
1 stop
MEL6:45 amMelbourne
May 21
MEL9:45 amMelbourne
21h 12m
1 stop
SEA1:57 pmSeattle/Tacoma Intl
$1,089

Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets
Delta
Oct 5
SEA2:30 pmSeattle/Tacoma Intl
24h 20m
1 stop
MEL8:50 amMelbourne
Oct 13
MEL11:00 amMelbourne
21h 47m
1 stop
SEA2:47 pmSeattle/Tacoma Intl
$1,100
Delta
Apr 30
SEA7:35 pmSeattle/Tacoma Intl
43h 15m
2 stops
MEL7:50 amMelbourne
May 13
MEL10:00 amMelbourne
31h 12m
2 stops
SEA12:12 amSeattle/Tacoma Intl
$1,104
Delta
Jun 2
SEA9:20 pmSeattle/Tacoma Intl
41h 30m
1 stop
MEL7:50 amMelbourne
Jun 14
MEL10:00 amMelbourne
30h 59m
2 stops
SEA11:59 pmSeattle/Tacoma Intl
$1,112

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated April 28, 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 round-trip

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 9/25

5:05 pm-6:45 am

1 stop20h 40m

Melbourne

Fri 10/23

9:45 am-4:36 pm

1 stop24h 51m

$1,081

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 10/15

5:55 pm-1:00 pm

2 stops25h 05m

Melbourne

Fri 10/23

2:30 pm-6:56 pm

2 stops22h 26m

$1,085

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 5/27

11:03 am-6:45 am

2 stops26h 42m

Melbourne

Wed 6/3

9:45 am-5:44 pm

2 stops24h 59m

$1,086

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 5/14

6:10 am-6:45 am

1 stop31h 35m

Melbourne

Thu 5/21

9:45 am-1:57 pm

1 stop21h 12m

$1,089
Quickest round-trip

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 8/14

7:35 pm-8:15 am

1 stop19h 40m

Melbourne

Sat 8/29

10:55 am-4:15 pm

1 stop22h 20m

$1,092

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 5/14

6:10 am-6:45 am

1 stop31h 35m

Melbourne

Thu 5/21

9:45 am-5:44 pm

2 stops24h 59m

$1,093

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 6/9

12:50 pm-8:15 am

2 stops26h 25m

Melbourne

Tue 6/16

10:55 am-2:30 pm

1 stop20h 35m

$1,097

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 10/5

2:30 pm-8:50 am

1 stop24h 20m

Melbourne

Tue 10/13

11:00 am-2:47 pm

1 stop21h 47m

$1,100

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 6/1

3:00 pm-7:50 am

1 stop23h 50m

Melbourne

Wed 6/10

10:00 am-10:05 pm

2 stops29h 05m

$1,104

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 8/17

11:25 am-6:45 am

1 stop26h 20m

Melbourne

Mon 8/31

4:35 pm-11:21 pm

2 stops23h 46m

$1,106

Flights are sorted by cheapest round-trip 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 $97. The month of August is another great option to travel to Melbourne, with average flight prices from Seattle averaging around $237.

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 $1,337 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne from Seattle for as low as $934 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 50m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 21h 50m
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?

    There are 8184.9 mi between Seattle/Tacoma Intl and Melbourne. 21h 50m is a normal flight duration for this route.

  • 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?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 travel and health documents you'll need for your trip to Melbourne may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Melbourne. It is always advisable to seek 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
Alaska AirlinesPriceFrom $97Free CancellationRating
7.9
12,311 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $385Free CancellationRating
7.1
10,975 reviews
Search Air Canada flights
DeltaPriceFrom $1,003Free CancellationRating
7.9
8,466 reviews
Search Delta flights
United AirlinesPriceFrom $1,015Free CancellationRating
7.4
9,675 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,034Free CancellationRating
7.5
1,028 reviews
Search Qantas Airways flights
Cathay PacificPriceFrom $1,153Free CancellationRating
7.6
1,306 reviews
Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Melbourne?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Melbourne for you.

Can I find flights from Seattle to Melbourne with flexible booking policies on momondo?

All flight searches from Seattle to Melbourne on momondo can be filtered to show those which offer flexible booking policies.

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?

Price alerts on flights to Melbourne from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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 31.3 mi from Melbourne
Melbourne Avalon Airport