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Cheap flights from Seattle to Melbourne from $393

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 3/29. 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.
Multiple Airlines Logo
8:00 pm - 11:20 am
SEA
-
MEL
22h 20m
2 stops
Multiple Airlines Logo
6:00 am - 9:15 am
MEL
-
SEA
20h 15m
2 stops
$962Multiple Airlines
Fri, Apr 24 - Mon, May 4
Multiple Airlines Logo
8:00 pm - 11:25 am
SEA
-
MEL
22h 25m
2 stops
Multiple Airlines Logo
6:00 am - 9:15 am
MEL
-
SEA
20h 15m
2 stops
$963Multiple Airlines
Fri, Apr 24 - Mon, May 4
Multiple Airlines Logo
8:00 pm - 11:05 am
SEA
-
MEL
22h 05m
2 stops
Multiple Airlines Logo
8:50 pm - 9:35 am
MEL
-
SEA
29h 45m
2 stops
$966Multiple Airlines
Sun, Apr 12 - Sun, Apr 19
Multiple Airlines Logo
8:00 pm - 12:25 pm
SEA
-
MEL
22h 25m
2 stops
Multiple Airlines Logo
8:30 pm - 9:35 am
MEL
-
SEA
30h 05m
2 stops
$969Multiple Airlines
Fri, Apr 3 - Mon, Apr 6
Air Canada Logo
3:00 pm - 11:05 am
SEA
-
MEL
27h 05m
2 stops
Air Canada Logo
6:00 am - 6:30 pm
MEL
-
SEA
29h 30m
2 stops
$971Air Canada
Fri, May 15 - Mon, May 25
Multiple Airlines Logo
8:00 pm - 8:05 pm
SEA
-
AVV
31h 05m
2 stops
Multiple Airlines Logo
8:40 pm - 9:35 am
AVV
-
SEA
29h 55m
2 stops
$990Multiple Airlines
Sun, Apr 12 - Sun, Apr 19
Multiple Airlines Logo
4:50 pm - 9:30 am
SEA
-
MEL
22h 40m
1 stop
Multiple Airlines Logo
12:00 pm - 3:42 pm
MEL
-
SEA
21h 42m
1 stop
$1,024Multiple Airlines
Fri, Mar 13 - Thu, Mar 19
American Airlines Logo
7:24 pm - 9:30 am
SEA
-
MEL
20h 06m
1 stop
American Airlines Logo
12:00 pm - 6:53 pm
MEL
-
SEA
24h 53m
1 stop
$1,032American Airlines
Sat, Mar 14 - Sat, Mar 21
Qantas Airways Logo
2:40 pm - 2:20 pm
SEA
-
AVV
30h 40m
2 stops
Qantas Airways Logo
10:30 am - 9:35 pm
AVV
-
SEA
28h 05m
2 stops
$2,051Qantas Airways
Sat, Jun 13 - Sat, Jun 20
Qantas Airways Logo
2:40 pm - 2:10 pm
SEA
-
AVV
30h 30m
2 stops
Qantas Airways Logo
8:50 am - 9:35 pm
AVV
-
SEA
29h 45m
2 stops
$2,092Qantas Airways
Thu, Jun 25 - Sat, Jul 11

Cathay Pacific flights from Seattle to Melbourne

Our best Cathay Pacific deals on Seattle to Melbourne flight tickets
Cathay Pacific
Aug 15
SEA12:25 pmSeattle/Tacoma Intl
29h 50m
1 stop
MEL11:15 amMelbourne
Aug 31
MEL11:45 pmMelbourne
27h 35m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$1,049
Cathay Pacific
Aug 15
SEA12:25 pmSeattle/Tacoma Intl
24h 30m
1 stop
MEL5:55 amMelbourne
Sep 1
MEL7:25 amMelbourne
43h 55m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$1,056
Cathay Pacific
Aug 15
SEA12:25 pmSeattle/Tacoma Intl
29h 50m
1 stop
MEL11:15 amMelbourne
Sep 2
MEL11:45 pmMelbourne
27h 35m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$1,124

American Airlines flights from Seattle to Melbourne

Our best American Airlines deals on Seattle to Melbourne flight tickets
American Airlines
Mar 14
SEA7:24 pmSeattle/Tacoma Intl
20h 06m
1 stop
MEL9:30 amMelbourne
Mar 21
MEL12:00 pmMelbourne
24h 53m
1 stop
SEA6:53 pmSeattle/Tacoma Intl
$1,032
American Airlines
Feb 21
SEA6:44 amSeattle/Tacoma Intl
27h 16m
1 stop
MEL5:00 amMelbourne
Mar 7
MEL4:05 pmMelbourne
22h 17m
1 stop
SEA7:22 pmSeattle/Tacoma Intl
$1,041
American Airlines
Mar 15
SEA3:00 pmSeattle/Tacoma Intl
24h 30m
2 stops
MEL9:30 amMelbourne
Mar 22
MEL12:00 pmMelbourne
28h 42m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
$1,045

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 17, 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

Fri 4/24

8:00 pm-11:20 am

2 stops22h 20m

Melbourne

Mon 5/4

6:00 am-9:15 am

2 stops20h 15m

$962

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 4/24

8:00 pm-11:25 am

2 stops22h 25m

Melbourne

Mon 5/4

6:00 am-9:15 am

2 stops20h 15m

$963

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 4/12

8:00 pm-11:05 am

2 stops22h 05m

Melbourne

Sun 4/19

8:50 pm-9:35 am

2 stops29h 45m

$966

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 4/3

8:00 pm-12:25 pm

2 stops22h 25m

Melbourne

Mon 4/6

8:30 pm-9:35 am

2 stops30h 05m

$969

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 5/15

3:00 pm-11:05 am

2 stops27h 05m

Melbourne

Mon 5/25

6:00 am-6:30 pm

2 stops29h 30m

$971

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sun 4/12

8:00 pm-8:05 pm

2 stops31h 05m

Melbourne Avalon

Sun 4/19

8:40 pm-9:35 am

2 stops29h 55m

$990

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/13

4:50 pm-9:30 am

1 stop22h 40m

Melbourne

Thu 3/19

12:00 pm-3:42 pm

1 stop21h 42m

$1,024

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 3/14

7:24 pm-9:30 am

1 stop20h 06m

Melbourne

Sat 3/21

12:00 pm-6:53 pm

1 stop24h 53m

$1,032

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sat 6/13

2:40 pm-2:20 pm

2 stops30h 40m

Melbourne Avalon

Sat 6/20

10:30 am-9:35 pm

2 stops28h 05m

$2,051

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Thu 6/25

2:40 pm-2:10 pm

2 stops30h 30m

Melbourne Avalon

Sat 7/11

8:50 am-9:35 pm

2 stops29h 45m

$2,092

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, February 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 $1,052. The month of March is another great option to travel to Melbourne, with average flight prices from Seattle averaging around $1,090.

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 $1,314 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

22h 25m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 22h 25m
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. 22h 25m 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
11,895 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $824Free CancellationRating
7.1
10,732 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,011Free CancellationRating
7.4
9,312 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,034Free CancellationRating
7.5
992 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