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Cheap flights from Seattle to Melbourne from $492

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 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Multiple Airlines Logo
8:00 pm - 12:25 pm
SEA
-
MEL
22h 25m2 stops
Multiple Airlines Logo
6:05 am - 9:31 am
MEL
-
SEA
21h 26m2 stops
$948Multiple Airlines
Sun, Mar 8 - Wed, Mar 18
Multiple Airlines Logo
8:00 pm - 11:25 am
SEA
-
MEL
22h 25m2 stops
Multiple Airlines Logo
6:00 am - 2:20 pm
MEL
-
SEA
25h 20m2 stops
$949Multiple Airlines
Tue, Apr 28 - Tue, May 12
Multiple Airlines Logo
8:00 pm - 11:25 am
SEA
-
MEL
22h 25m2 stops
Multiple Airlines Logo
6:00 am - 3:03 pm
MEL
-
SEA
26h 03m2 stops
$950Multiple Airlines
Mon, Apr 6 - Thu, Apr 16
Air Canada Logo
8:00 pm - 1:35 pm
SEA
-
MEL
22h 35m2 stops
Air Canada Logo
8:10 am - 9:31 am
MEL
-
SEA
20h 21m2 stops
$956Air Canada
Sat, Feb 21 - Sat, Mar 7
Air Canada Logo
3:40 pm - 11:05 am
SEA
-
MEL
26h 25m2 stops
Air Canada Logo
6:00 am - 2:20 pm
MEL
-
SEA
25h 20m2 stops
$957Air Canada
Fri, Apr 24 - Mon, May 4
Air Canada Logo
8:00 pm - 2:15 pm
SEA
-
MEL
23h 15m2 stops
Air Canada Logo
7:10 am - 7:16 pm
MEL
-
SEA
31h 06m2 stops
$958Air Canada
Sun, Feb 1 - Sat, Feb 14
Qantas Airways Logo
4:50 pm - 3:50 pm
SEA
-
AVV
29h 00m2 stops
Qantas Airways Logo
4:25 pm - 8:42 pm
AVV
-
SEA
22h 17m2 stops
$2,229Qantas Airways
Sun, Mar 15 - Tue, Mar 24
Qantas Airways Logo
2:53 pm - 2:20 pm
SEA
-
AVV
30h 27m2 stops
Qantas Airways Logo
10:30 am - 10:42 pm
AVV
-
SEA
29h 12m2 stops
$2,405Qantas Airways
Mon, Apr 6 - Thu, Apr 16
Qantas Airways Logo
6:00 am - 2:10 pm
SEA
-
AVV
37h 10m2 stops
Qantas Airways Logo
8:10 am - 6:52 pm
AVV
-
SEA
29h 42m2 stops
$2,539Qantas Airways
Sun, Feb 1 - Wed, Feb 25
Qantas Airways Logo
3:50 pm - 3:50 pm
SEA
-
AVV
29h 00m2 stops
Qantas Airways Logo
3:00 pm - 6:52 pm
AVV
-
SEA
22h 52m2 stops
$2,628Qantas Airways
Wed, Feb 18 - Wed, Feb 25

Delta flights from Seattle to Melbourne

Our best Delta deals on Seattle to Melbourne flight tickets
Delta
Feb 20
SEA11:17 amSeattle/Tacoma Intl
25h 43m
1 stop
MEL8:00 amMelbourne
Feb 27
MEL10:10 amMelbourne
21h 48m
1 stop
SEA12:58 pmSeattle/Tacoma Intl
$1,065
Delta
Feb 11
SEA1:38 pmSeattle/Tacoma Intl
23h 22m
2 stops
MEL8:00 amMelbourne
Feb 22
MEL10:10 amMelbourne
32h 59m
2 stops
SEA12:09 amSeattle/Tacoma Intl
$1,069
Delta
Mar 17
SEA7:35 pmSeattle/Tacoma Intl
41h 25m
2 stops
MEL7:00 amMelbourne
Mar 29
MEL11:00 amMelbourne
45h 54m
2 stops
SEA2:54 pmSeattle/Tacoma Intl
$1,083

Qantas Airways flights from Seattle to Melbourne

Our best Qantas Airways deals on Seattle to Melbourne flight tickets
Qantas Airways
Feb 21
SEA6:09 amSeattle/Tacoma Intl
45h 36m
2 stops
MEL10:45 pmMelbourne
Mar 7
MEL12:00 pmMelbourne
25h 57m
1 stop
SEA6:57 pmSeattle/Tacoma Intl
$973
Qantas Airways
Jan 27
SEA3:57 pmSeattle/Tacoma Intl
22h 33m
1 stop
MEL9:30 amMelbourne
Feb 5
MEL6:45 amMelbourne
24h 44m
2 stops
SEA12:29 pmSeattle/Tacoma Intl
$977
Qantas Airways
Feb 21
SEA12:50 pmSeattle/Tacoma Intl
25h 40m
1 stop
MEL9:30 amMelbourne
Mar 7
MEL12:00 pmMelbourne
25h 57m
1 stop
SEA6:57 pmSeattle/Tacoma Intl
$1,000

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 January 8, 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

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 3/8

8:00 pm-12:25 pm

2 stops22h 25m

Melbourne

Wed 3/18

6:05 am-9:31 am

2 stops21h 26m

$948

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 4/28

8:00 pm-11:25 am

2 stops22h 25m

Melbourne

Tue 5/12

6:00 am-2:20 pm

2 stops25h 20m

$949

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 4/6

8:00 pm-11:25 am

2 stops22h 25m

Melbourne

Thu 4/16

6:00 am-3:03 pm

2 stops26h 03m

$950

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 2/21

8:00 pm-1:35 pm

2 stops22h 35m

Melbourne

Sat 3/7

8:10 am-9:31 am

2 stops20h 21m

$956

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 4/24

3:40 pm-11:05 am

2 stops26h 25m

Melbourne

Mon 5/4

6:00 am-2:20 pm

2 stops25h 20m

$957

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 2/1

8:00 pm-2:15 pm

2 stops23h 15m

Melbourne

Sat 2/14

7:10 am-7:16 pm

2 stops31h 06m

$958

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sun 3/15

4:50 pm-3:50 pm

2 stops29h 00m

Melbourne Avalon

Tue 3/24

4:25 pm-8:42 pm

2 stops22h 17m

$2,229

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 4/6

2:53 pm-2:20 pm

2 stops30h 27m

Melbourne Avalon

Thu 4/16

10:30 am-10:42 pm

2 stops29h 12m

$2,405

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sun 2/1

6:00 am-2:10 pm

2 stops37h 10m

Melbourne Avalon

Wed 2/25

8:10 am-6:52 pm

2 stops29h 42m

$2,539

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Wed 2/18

3:50 pm-3:50 pm

2 stops29h 00m

Melbourne Avalon

Wed 2/25

3:00 pm-6:52 pm

2 stops22h 52m

$2,628

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, 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 $1,105. The month of February is another great option to travel to Melbourne, with average flight prices from Seattle averaging around $1,108.

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 $1,336 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 $831 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 35m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 21h 35m
There are no direct flights from Seattle to Melbourne. There are no popular flight routes from Seattle to Melbourne.
Search flight deals

  • How far is Seattle/Tacoma Intl to Melbourne by plane?

    There are 8184.9 mi between Seattle/Tacoma Intl and Melbourne. 21h 35m 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
8.0
11,672 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $828Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $1,042Free CancellationRating
7.5
968 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $1,093Free CancellationRating
7.4
9,142 reviews
Search United Airlines 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