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Cheap flights from Seattle to Melbourne from $456

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 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
5:50 pm - 12:25 pm
SEA
-
MEL
24h 35m
2 stops
Multiple Airlines Logo
1:30 pm - 7:53 pm
MEL
-
SEA
23h 23m
2 stops
$913Multiple Airlines
Tue, Mar 17 - Fri, May 1
Multiple Airlines Logo
10:42 am - 6:45 am
SEA
-
MEL
27h 03m
1 stop
Multiple Airlines Logo
1:30 pm - 11:05 pm
MEL
-
SEA
26h 35m
2 stops
$918Multiple Airlines
Tue, May 5 - Fri, May 15
Multiple Airlines Logo
10:42 am - 6:45 am
SEA
-
MEL
27h 03m
1 stop
Multiple Airlines Logo
1:30 pm - 11:05 pm
MEL
-
SEA
26h 35m
2 stops
$930Multiple Airlines
Thu, May 7 - Fri, May 15
Singapore Airlines Logo
7:20 pm - 11:05 am
SEA
-
MEL
22h 45m
2 stops
Singapore Airlines Logo
6:00 am - 9:15 am
MEL
-
SEA
20h 15m
2 stops
$936Singapore Airlines
Wed, May 6 - Tue, May 12
Singapore Airlines Logo
7:20 pm - 11:05 am
SEA
-
MEL
22h 45m
2 stops
Singapore Airlines Logo
6:00 am - 9:15 am
MEL
-
SEA
20h 15m
2 stops
$937Singapore Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
10:42 am - 6:45 am
SEA
-
MEL
27h 03m
1 stop
Multiple Airlines Logo
1:30 pm - 11:42 pm
MEL
-
SEA
27h 12m
2 stops
$938Multiple Airlines
Tue, May 5 - Sat, May 16
Singapore Airlines Logo
7:20 pm - 11:20 am
SEA
-
MEL
23h 00m
2 stops
Singapore Airlines Logo
6:00 am - 9:15 am
MEL
-
SEA
20h 15m
2 stops
$939Singapore Airlines
Tue, May 5 - Thu, May 14
Singapore Airlines Logo
7:20 pm - 11:05 am
SEA
-
MEL
22h 45m
2 stops
Singapore Airlines Logo
6:00 am - 9:15 am
MEL
-
SEA
20h 15m
2 stops
$942Singapore Airlines
Thu, May 7 - Fri, May 15
Singapore Airlines Logo
7:20 pm - 11:20 am
SEA
-
MEL
23h 00m
2 stops
Singapore Airlines Logo
6:00 am - 9:15 am
MEL
-
SEA
20h 15m
2 stops
$943Singapore Airlines
Tue, May 5 - Fri, May 15
Qantas Airways Logo
5:40 pm - 2:20 pm
SEA
-
AVV
27h 40m
2 stops
Qantas Airways Logo
8:55 pm - 11:01 pm
AVV
-
SEA
43h 06m
2 stops
$1,736Qantas Airways
Mon, Jun 29 - Mon, Jul 6

Air Canada flights from Seattle to Melbourne

Our best Air Canada deals on Seattle to Melbourne flight tickets
Air Canada
Feb 21
SEA3:40 pmSeattle/Tacoma Intl
27h 35m
2 stops
MEL2:15 pmMelbourne
Mar 7
MEL7:10 amMelbourne
21h 21m
2 stops
SEA9:31 amSeattle/Tacoma Intl
$969
Air Canada
Mar 25
SEA8:00 pmSeattle/Tacoma Intl
27h 40m
2 stops
MEL5:40 pmMelbourne
Apr 9
MEL6:00 amMelbourne
20h 33m
2 stops
SEA9:33 amSeattle/Tacoma Intl
$970
Air Canada
May 1
SEA7:20 pmSeattle/Tacoma Intl
23h 00m
2 stops
MEL11:20 amMelbourne
May 31
MEL8:45 pmMelbourne
29h 30m
2 stops
SEA9:15 amSeattle/Tacoma Intl
$974

KLM flights from Seattle to Melbourne

Our best KLM deals on Seattle to Melbourne flight tickets
KLM
Feb 21
SEA1:40 pmSeattle/Tacoma Intl
49h 35m
2 stops
MEL10:15 amMelbourne
Mar 7
MEL10:00 amMelbourne
44h 35m
3 stops
SEA11:35 amSeattle/Tacoma Intl
$2,677
KLM
Feb 21
SEA1:40 pmSeattle/Tacoma Intl
49h 35m
2 stops
MEL10:15 amMelbourne
Mar 7
MEL7:00 amMelbourne
47h 35m
3 stops
SEA11:35 amSeattle/Tacoma Intl
$3,020
KLM
Feb 10
SEA3:05 pmSeattle/Tacoma Intl
61h 30m
3 stops
MEL11:35 pmMelbourne
Apr 20
MEL9:15 amMelbourne
43h 30m
3 stops
SEA11:45 amSeattle/Tacoma Intl
$3,411

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 February 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

Tue 3/17

5:50 pm-12:25 pm

2 stops24h 35m

Melbourne

Fri 5/1

1:30 pm-7:53 pm

2 stops23h 23m

$913

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 5/5

10:42 am-6:45 am

1 stop27h 03m

Melbourne

Fri 5/15

1:30 pm-11:05 pm

2 stops26h 35m

$918

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 5/7

10:42 am-6:45 am

1 stop27h 03m

Melbourne

Fri 5/15

1:30 pm-11:05 pm

2 stops26h 35m

$930

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 5/6

7:20 pm-11:05 am

2 stops22h 45m

Melbourne

Tue 5/12

6:00 am-9:15 am

2 stops20h 15m

$936

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 5/7

7:20 pm-11:05 am

2 stops22h 45m

Melbourne

Thu 5/14

6:00 am-9:15 am

2 stops20h 15m

$937

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 5/5

10:42 am-6:45 am

1 stop27h 03m

Melbourne

Sat 5/16

1:30 pm-11:42 pm

2 stops27h 12m

$938

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 5/5

7:20 pm-11:20 am

2 stops23h 00m

Melbourne

Thu 5/14

6:00 am-9:15 am

2 stops20h 15m

$939

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 5/7

7:20 pm-11:05 am

2 stops22h 45m

Melbourne

Fri 5/15

6:00 am-9:15 am

2 stops20h 15m

$942

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 5/5

7:20 pm-11:20 am

2 stops23h 00m

Melbourne

Fri 5/15

6:00 am-9:15 am

2 stops20h 15m

$943

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 6/29

5:40 pm-2:20 pm

2 stops27h 40m

Melbourne Avalon

Mon 7/6

8:55 pm-11:01 pm

2 stops43h 06m

$1,736

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 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 $1,093. 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 $1,333 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 $838 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 27m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 19h 27m
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. 19h 27m 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
11,851 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $824Free CancellationRating
7.1
10,697 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,011Free CancellationRating
7.4
9,256 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,034Free CancellationRating
7.5
988 reviews
Search Qantas Airways 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