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Cheap flights from Seattle to Melbourne from $584

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 7/20. 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 round-trip flights

Enter your travel dates to find the best prices.
Philippine Airlines Logo
11:55 pm - 7:20 am
SEA
-
MEL
36h 25m
1 stop
Philippine Airlines Logo
9:00 am - 7:35 pm
MEL
-
SEA
29h 35m
1 stop
$983Philippine Airlines
Sun, Nov 15 - Sun, Nov 29
Qantas Airways Logo
5:55 pm - 9:30 am
SEA
-
MEL
20h 35m
1 stop
Qantas Airways Logo
6:30 pm - 12:25 pm
MEL
-
SEA
36h 55m
2 stops
$984Qantas Airways
Tue, Dec 1 - Wed, Dec 9
Qantas Airways Logo
5:01 pm - 9:30 am
SEA
-
MEL
22h 29m
1 stop
Qantas Airways Logo
11:15 pm - 12:04 am
MEL
-
SEA
19h 49m
1 stop
$1,069Qantas Airways
Fri, Oct 30 - Sun, Nov 8
Qantas Airways Logo
7:05 pm - 9:30 am
SEA
-
MEL
20h 25m
1 stop
Qantas Airways Logo
11:15 pm - 12:04 am
MEL
-
SEA
19h 49m
1 stop
$1,070Qantas Airways
Fri, Oct 30 - Sun, Nov 8
American Airlines Logo
2:20 pm - 6:45 am
SEA
-
MEL
23h 25m
1 stop
American Airlines Logo
1:35 pm - 8:05 pm
MEL
-
SEA
23h 30m
1 stop
$1,072American Airlines
Sat, Jul 25 - Sat, Aug 1
American Airlines Logo
2:40 pm - 6:45 am
SEA
-
MEL
23h 05m
1 stop
American Airlines Logo
9:45 am - 1:48 pm
MEL
-
SEA
21h 03m
1 stop
$1,079American Airlines
Wed, Jul 1 - Thu, Jul 9
United Airlines Logo
5:20 pm - 8:15 am
SEA
-
MEL
21h 55m
1 stop
United Airlines Logo
10:55 am - 12:34 pm
MEL
-
SEA
18h 39m
1 stop
$1,090United Airlines
Tue, Jun 30 - Thu, Jul 30
United Airlines Logo
7:05 pm - 8:15 am
SEA
-
MEL
20h 10m
1 stop
United Airlines Logo
10:55 am - 12:34 pm
MEL
-
SEA
18h 39m
1 stop
$1,091United Airlines
Wed, Jul 1 - Sat, Jul 11
Multiple Airlines Logo
7:20 pm - 2:10 pm
SEA
-
AVV
24h 50m
2 stops
Multiple Airlines Logo
6:00 am - 2:22 pm
AVV
-
SEA
26h 22m
2 stops
$1,271Multiple Airlines
Mon, Oct 5 - Tue, Oct 13
Multiple Airlines Logo
2:40 pm - 2:10 pm
SEA
-
AVV
30h 30m
2 stops
Multiple Airlines Logo
6:00 am - 9:02 pm
AVV
-
SEA
32h 02m
2 stops
$1,356Multiple Airlines
Tue, Jul 7 - Wed, Jul 22

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United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
Jun 30
SEA5:20 pmSeattle/Tacoma Intl
21h 55m
1 stop
MEL8:15 amMelbourne
Jul 30
MEL10:55 amMelbourne
18h 39m
1 stop
SEA12:34 pmSeattle/Tacoma Intl
$1,090
United Airlines
Jul 1
SEA7:05 pmSeattle/Tacoma Intl
20h 10m
1 stop
MEL8:15 amMelbourne
Jul 11
MEL10:55 amMelbourne
18h 39m
1 stop
SEA12:34 pmSeattle/Tacoma Intl
$1,091
United Airlines
Oct 5
SEA5:21 pmSeattle/Tacoma Intl
21h 54m
1 stop
MEL9:15 amMelbourne
Oct 13
MEL11:55 amMelbourne
20h 27m
1 stop
SEA2:22 pmSeattle/Tacoma Intl
$1,092

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
Jul 25
SEA2:20 pmSeattle/Tacoma Intl
23h 25m
1 stop
MEL6:45 amMelbourne
Aug 1
MEL1:35 pmMelbourne
23h 30m
1 stop
SEA8:05 pmSeattle/Tacoma Intl
$1,072
American Airlines
Jul 1
SEA2:40 pmSeattle/Tacoma Intl
23h 05m
1 stop
MEL6:45 amMelbourne
Jul 9
MEL9:45 amMelbourne
21h 03m
1 stop
SEA1:48 pmSeattle/Tacoma Intl
$1,079
American Airlines
Jul 1
SEA2:40 pmSeattle/Tacoma Intl
23h 05m
1 stop
MEL6:45 amMelbourne
Jul 9
MEL9:45 amMelbourne
21h 03m
1 stop
SEA1:48 pmSeattle/Tacoma Intl
$1,080

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 June 14, 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

Sun 11/15

11:55 pm-7:20 am

1 stop36h 25m

Melbourne

Sun 11/29

9:00 am-7:35 pm

1 stop29h 35m

$983

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 12/1

5:55 pm-9:30 am

1 stop20h 35m

Melbourne

Wed 12/9

6:30 pm-12:25 pm

2 stops36h 55m

$984

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 10/30

5:01 pm-9:30 am

1 stop22h 29m

Melbourne

Sun 11/8

11:15 pm-12:04 am

1 stop19h 49m

$1,069

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 10/30

7:05 pm-9:30 am

1 stop20h 25m

Melbourne

Sun 11/8

11:15 pm-12:04 am

1 stop19h 49m

$1,070

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 7/25

2:20 pm-6:45 am

1 stop23h 25m

Melbourne

Sat 8/1

1:35 pm-8:05 pm

1 stop23h 30m

$1,072

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 7/1

2:40 pm-6:45 am

1 stop23h 05m

Melbourne

Thu 7/9

9:45 am-1:48 pm

1 stop21h 03m

$1,079

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 6/30

5:20 pm-8:15 am

1 stop21h 55m

Melbourne

Thu 7/30

10:55 am-12:34 pm

1 stop18h 39m

$1,090
Quickest round-trip

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 7/1

7:05 pm-8:15 am

1 stop20h 10m

Melbourne

Sat 7/11

10:55 am-12:34 pm

1 stop18h 39m

$1,091

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 10/5

7:20 pm-2:10 pm

2 stops24h 50m

Melbourne Avalon

Tue 10/13

6:00 am-2:22 pm

2 stops26h 22m

$1,271

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Tue 7/7

2:40 pm-2:10 pm

2 stops30h 30m

Melbourne Avalon

Wed 7/22

6:00 am-9:02 pm

2 stops32h 02m

$1,356

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 $1,263 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

19h 55m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 19h 55m
There are no direct flights from Seattle to Melbourne. There are no popular flight routes from Seattle to Melbourne.
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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. 19h 55m 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
12,506 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $385Free CancellationRating
7.1
11,180 reviews
Search Air Canada flights
DeltaPriceFrom $1,003Free CancellationRating
7.9
8,403 reviews
Search Delta flights
United AirlinesPriceFrom $1,015Free CancellationRating
7.4
9,818 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,034Free CancellationRating
7.5
1,046 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,095Free CancellationRating
8.0
645 reviews
Search Air New Zealand flights
Cathay PacificPriceFrom $1,153Free CancellationRating
7.6
1,378 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