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Cheap flights from Seattle to Melbourne from $430

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 5/13. 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
3:40 pm - 2:05 pm
SEA
-
MEL
29h 25m
2 stops
Multiple Airlines Logo
6:00 am - 9:35 am
MEL
-
SEA
20h 35m
2 stops
$905Multiple Airlines
Sat, Apr 18 - Fri, Apr 24
Multiple Airlines Logo
6:00 am - 12:25 pm
SEA
-
MEL
37h 25m
2 stops
Multiple Airlines Logo
1:30 pm - 8:05 pm
MEL
-
SEA
23h 35m
2 stops
$936Multiple Airlines
Sun, Aug 9 - Sat, Sep 5
Philippine Airlines Logo
11:10 pm - 6:30 am
SEA
-
MEL
38h 20m
1 stop
Philippine Airlines Logo
6:30 am - 8:05 pm
MEL
-
SEA
30h 35m
1 stop
$954Philippine Airlines
Tue, Aug 18 - Tue, Sep 1
Multiple Airlines Logo
8:00 pm - 11:20 am
SEA
-
MEL
22h 20m
2 stops
Multiple Airlines Logo
6:00 am - 2:20 pm
MEL
-
SEA
25h 20m
2 stops
$960Multiple Airlines
Fri, Apr 24 - Mon, May 4
Air Canada Logo
3:40 pm - 12:20 pm
SEA
-
MEL
26h 40m
2 stops
Air Canada Logo
6:00 am - 9:35 am
MEL
-
SEA
20h 35m
2 stops
$969Air Canada
Fri, Mar 27 - Fri, Apr 24
Philippine Airlines Logo
11:10 pm - 5:00 am
SEA
-
MEL
36h 50m
1 stop
Philippine Airlines Logo
6:30 am - 8:05 pm
MEL
-
SEA
30h 35m
1 stop
$985Philippine Airlines
Wed, Aug 19 - Tue, Sep 1
Cathay Pacific Logo
12:25 pm - 5:55 am
SEA
-
MEL
24h 30m
1 stop
Cathay Pacific Logo
7:25 am - 10:20 am
MEL
-
SEA
43h 55m
1 stop
$998Cathay Pacific
Mon, Aug 17 - Tue, Sep 1
Cathay Pacific Logo
12:25 pm - 5:55 am
SEA
-
MEL
24h 30m
1 stop
Cathay Pacific Logo
2:25 pm - 10:20 am
MEL
-
SEA
36h 55m
1 stop
$1,000Cathay Pacific
Mon, Aug 17 - Tue, Sep 1
Qantas Airways Logo
6:00 am - 11:15 pm
SEA
-
AVV
47h 15m
2 stops
Qantas Airways Logo
4:25 pm - 8:58 pm
AVV
-
SEA
22h 33m
2 stops
$3,007Qantas Airways
Sun, Mar 8 - Wed, Mar 11
Qantas Airways Logo
6:09 am - 7:35 am
SEA
-
AVV
54h 26m
2 stops
Qantas Airways Logo
4:25 pm - 8:58 pm
AVV
-
SEA
22h 33m
2 stops
$3,059Qantas Airways
Sat, Mar 7 - Wed, Mar 11

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
Mar 5
SEA12:55 pmSeattle/Tacoma Intl
25h 35m
2 stops
MEL9:30 amMelbourne
Mar 18
MEL10:30 amMelbourne
23h 20m
1 stop
SEA3:50 pmSeattle/Tacoma Intl
$1,055
United Airlines
May 10
SEA1:21 pmSeattle/Tacoma Intl
25h 54m
1 stop
MEL8:15 amMelbourne
Jun 5
MEL9:30 amMelbourne
28h 40m
2 stops
SEA9:10 pmSeattle/Tacoma Intl
$1,063
United Airlines
Mar 7
SEA8:59 amSeattle/Tacoma Intl
30h 01m
2 stops
MEL10:00 amMelbourne
Mar 11
MEL12:00 pmMelbourne
22h 14m
1 stop
SEA4:14 pmSeattle/Tacoma Intl
$1,067

ANA flights from Seattle to Melbourne

Our best ANA deals on Seattle to Melbourne flight tickets
ANA
Aug 16
SEA4:30 pmSeattle/Tacoma Intl
52h 05m
2 stops
MEL1:35 pmMelbourne
Sep 1
MEL8:00 amMelbourne
47h 25m
2 stops
SEA2:25 pmSeattle/Tacoma Intl
$1,090
ANA
Aug 16
SEA4:30 pmSeattle/Tacoma Intl
52h 05m
2 stops
MEL1:35 pmMelbourne
Sep 1
MEL8:00 amMelbourne
47h 25m
2 stops
SEA2:25 pmSeattle/Tacoma Intl
$1,091

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 23, 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

Sat 4/18

3:40 pm-2:05 pm

2 stops29h 25m

Melbourne

Fri 4/24

6:00 am-9:35 am

2 stops20h 35m

$905

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 8/9

6:00 am-12:25 pm

2 stops37h 25m

Melbourne

Sat 9/5

1:30 pm-8:05 pm

2 stops23h 35m

$936

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 8/18

11:10 pm-6:30 am

1 stop38h 20m

Melbourne

Tue 9/1

6:30 am-8:05 pm

1 stop30h 35m

$954

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-2:20 pm

2 stops25h 20m

$960

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/27

3:40 pm-12:20 pm

2 stops26h 40m

Melbourne

Fri 4/24

6:00 am-9:35 am

2 stops20h 35m

$969

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 8/19

11:10 pm-5:00 am

1 stop36h 50m

Melbourne

Tue 9/1

6:30 am-8:05 pm

1 stop30h 35m

$985

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 8/17

12:25 pm-5:55 am

1 stop24h 30m

Melbourne

Tue 9/1

7:25 am-10:20 am

1 stop43h 55m

$998

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 8/17

12:25 pm-5:55 am

1 stop24h 30m

Melbourne

Tue 9/1

2:25 pm-10:20 am

1 stop36h 55m

$1,000

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sun 3/8

6:00 am-11:15 pm

2 stops47h 15m

Melbourne Avalon

Wed 3/11

4:25 pm-8:58 pm

2 stops22h 33m

$3,007

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Sat 3/7

6:09 am-7:35 am

2 stops54h 26m

Melbourne Avalon

Wed 3/11

4:25 pm-8:58 pm

2 stops22h 33m

$3,059

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 $1,057. 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 $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

20h 59m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 20h 59m
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. 20h 59m 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
11,938 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $824Free CancellationRating
7.1
10,742 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,011Free CancellationRating
7.4
9,342 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,034Free CancellationRating
7.5
996 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