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Cheap flights from Seattle to Melbourne from $534

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 8/24. 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.
Multiple Airlines Logo
7:15 pm - 11:20 am
SEA
-
MEL
23h 05m
2 stops
Multiple Airlines Logo
6:00 am - 10:05 am
MEL
-
SEA
21h 05m
2 stops
$985Multiple Airlines
Sun, Sep 13 - Mon, Sep 28
Multiple Airlines Logo
11:06 am - 6:45 am
SEA
-
MEL
25h 39m
1 stop
Multiple Airlines Logo
1:35 pm - 6:26 pm
MEL
-
SEA
23h 51m
2 stops
$1,003Multiple Airlines
Wed, Oct 21 - Mon, Nov 2
Delta Logo
12:36 pm - 7:50 am
SEA
-
MEL
26h 14m
1 stop
Delta Logo
10:00 am - 12:27 pm
MEL
-
SEA
19h 27m
1 stop
$1,039Delta
Wed, Aug 12 - Fri, Aug 21
Delta Logo
9:59 am - 7:50 am
SEA
-
MEL
28h 51m
1 stop
Delta Logo
10:00 am - 4:54 pm
MEL
-
SEA
23h 54m
2 stops
$1,044Delta
Wed, Aug 12 - Fri, Aug 21
United Airlines Logo
5:20 pm - 8:15 am
SEA
-
MEL
21h 55m
1 stop
United Airlines Logo
10:55 am - 5:37 pm
MEL
-
SEA
23h 42m
2 stops
$1,054United Airlines
Sun, Sep 13 - Mon, Sep 28
United Airlines Logo
12:44 pm - 8:15 am
SEA
-
MEL
26h 31m
2 stops
United Airlines Logo
10:55 am - 4:14 pm
MEL
-
SEA
22h 19m
1 stop
$1,055United Airlines
Mon, Aug 31 - Wed, Sep 16
Air Canada Logo
7:20 pm - 11:20 am
SEA
-
MEL
23h 00m
2 stops
Air Canada Logo
6:00 am - 6:32 pm
MEL
-
SEA
29h 32m
2 stops
$1,084Air Canada
Sun, Sep 6 - Wed, Sep 23
Air Canada Logo
7:20 pm - 12:20 pm
SEA
-
MEL
24h 00m
2 stops
Air Canada Logo
6:00 am - 10:05 am
MEL
-
SEA
21h 05m
2 stops
$1,084Air Canada
Sun, Sep 6 - Tue, Sep 22
Qantas Airways Logo
3:20 pm - 6:45 am
SEA
-
MEL
21h 25m
1 stop
Qantas Airways Logo
10:45 pm - 12:04 am
MEL
-
SEA
20h 19m
1 stop
$1,110Qantas Airways
Mon, Oct 19 - Sun, Nov 1
Qantas Airways Logo
3:20 pm - 6:45 am
SEA
-
MEL
21h 25m
1 stop
Qantas Airways Logo
10:45 pm - 8:56 am
MEL
-
SEA
28h 11m
1 stop
$1,148Qantas Airways
Mon, Oct 19 - Fri, Oct 30

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United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
Aug 31
SEA12:44 pmSeattle/Tacoma Intl
26h 31m
2 stops
MEL8:15 amMelbourne
Sep 16
MEL10:55 amMelbourne
22h 19m
1 stop
SEA4:14 pmSeattle/Tacoma Intl
$1,055
United Airlines
Sep 9
SEA6:52 pmSeattle/Tacoma Intl
19h 38m
1 stop
MEL7:30 amMelbourne
Sep 21
MEL10:55 amMelbourne
22h 19m
1 stop
SEA4:14 pmSeattle/Tacoma Intl
$1,065
United Airlines
Sep 9
SEA11:03 amSeattle/Tacoma Intl
28h 12m
2 stops
MEL8:15 amMelbourne
Sep 21
MEL10:55 amMelbourne
24h 34m
1 stop
SEA6:29 pmSeattle/Tacoma Intl
$1,069

Air Canada flights from Seattle to Melbourne

Our best Air Canada deals on Seattle to Melbourne flight tickets
Air Canada
Sep 6
SEA7:20 pmSeattle/Tacoma Intl
23h 00m
2 stops
MEL11:20 amMelbourne
Sep 23
MEL6:00 amMelbourne
29h 32m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$1,084
Air Canada
Sep 6
SEA7:20 pmSeattle/Tacoma Intl
24h 00m
2 stops
MEL12:20 pmMelbourne
Sep 19
MEL6:00 pmMelbourne
37h 22m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$1,088

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 July 29, 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 9/13

7:15 pm-11:20 am

2 stops23h 05m

Melbourne

Mon 9/28

6:00 am-10:05 am

2 stops21h 05m

$985

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 10/21

11:06 am-6:45 am

1 stop25h 39m

Melbourne

Mon 11/2

1:35 pm-6:26 pm

2 stops23h 51m

$1,003

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 8/12

12:36 pm-7:50 am

1 stop26h 14m

Melbourne

Fri 8/21

10:00 am-12:27 pm

1 stop19h 27m

$1,039

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 8/12

9:59 am-7:50 am

1 stop28h 51m

Melbourne

Fri 8/21

10:00 am-4:54 pm

2 stops23h 54m

$1,044

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 9/13

5:20 pm-8:15 am

1 stop21h 55m

Melbourne

Mon 9/28

10:55 am-5:37 pm

2 stops23h 42m

$1,054

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 8/31

12:44 pm-8:15 am

2 stops26h 31m

Melbourne

Wed 9/16

10:55 am-4:14 pm

1 stop22h 19m

$1,055

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 9/6

7:20 pm-11:20 am

2 stops23h 00m

Melbourne

Wed 9/23

6:00 am-6:32 pm

2 stops29h 32m

$1,084

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 9/6

7:20 pm-12:20 pm

2 stops24h 00m

Melbourne

Tue 9/22

6:00 am-10:05 am

2 stops21h 05m

$1,084
Quickest round-trip

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 10/19

3:20 pm-6:45 am

1 stop21h 25m

Melbourne

Sun 11/1

10:45 pm-12:04 am

1 stop20h 19m

$1,110

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 10/19

3:20 pm-6:45 am

1 stop21h 25m

Melbourne

Fri 10/30

10:45 pm-8:56 am

1 stop28h 11m

$1,148

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,027 to $1,191.
The lowest price recently found on this route was $985.

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 $1,034. The month of February is another great option to travel to Melbourne, with average flight prices from Seattle averaging around $1,062.

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 $1,257 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 $1,044 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 10m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 20h 10m
There are no direct flights from Seattle to Melbourne. There are no popular flight routes from Seattle to Melbourne.
Search flight deals

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. 20h 10m 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
12,728 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $385Free CancellationRating
7.1
11,405 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,011Free CancellationRating
7.4
10,052 reviews
Search United Airlines flights
DeltaPriceFrom $1,016Free CancellationRating
7.8
8,486 reviews
Search Delta flights
Qantas AirwaysPriceFrom $1,034Free CancellationRating
7.5
1,073 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,095Free CancellationRating
8.0
656 reviews
Search Air New Zealand flights
Cathay PacificPriceFrom $1,153Free CancellationRating
7.6
1,433 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