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Cheap flights from Seattle to Melbourne from $617

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 11/5. 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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Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
15:00 - 09:30
SEA
-
MEL
24h 30m2 stops
American Airlines Logo
12:00 - 18:53
MEL
-
SEA
24h 53m1 stop
$1,500American Airlines
Tue, 10 Mar - Tue, 24 Mar
Multiple Airlines Logo
16:50 - 12:25
SEA
-
MEL
24h 35m2 stops
Multiple Airlines Logo
13:55 - 17:00
MEL
-
SEA
22h 05m2 stops
$1,515Multiple Airlines
Sat, 21 Feb - Sat, 7 Mar
Qantas Airways Logo
15:57 - 09:30
SEA
-
MEL
22h 33m1 stop
Qantas Airways Logo
18:20 - 21:54
MEL
-
SEA
21h 34m2 stops
$1,518Qantas Airways
Thu, 29 Jan - Tue, 24 Mar
Multiple Airlines Logo
15:40 - 17:15
SEA
-
MEL
30h 35m2 stops
Multiple Airlines Logo
07:45 - 14:31
MEL
-
SEA
25h 46m2 stops
$1,521Multiple Airlines
Sat, 24 Jan - Mon, 9 Feb
Air Canada Logo
20:00 - 14:15
SEA
-
MEL
23h 15m2 stops
Air Canada Logo
07:10 - 09:31
MEL
-
SEA
21h 21m2 stops
$1,524Air Canada
Tue, 30 Dec - Mon, 2 Feb
American Airlines Logo
19:24 - 09:30
SEA
-
MEL
20h 06m1 stop
American Airlines Logo
16:25 - 22:52
MEL
-
SEA
24h 27m2 stops
$1,526American Airlines
Tue, 10 Mar - Tue, 24 Mar
United Airlines Logo
09:06 - 09:30
SEA
-
MEL
29h 24m1 stop
United Airlines Logo
11:30 - 11:41
MEL
-
SEA
19h 11m1 stop
$1,527United Airlines
Tue, 30 Dec - Mon, 2 Feb
Qantas Airways Logo
17:53 - 09:30
SEA
-
MEL
20h 37m1 stop
Qantas Airways Logo
12:00 - 17:52
MEL
-
SEA
24h 52m1 stop
$1,529Qantas Airways
Thu, 22 Jan - Tue, 3 Feb
American Airlines Logo
15:00 - 09:30
SEA
-
MEL
24h 30m2 stops
American Airlines Logo
16:25 - 22:52
MEL
-
SEA
24h 27m2 stops
$1,532American Airlines
Tue, 10 Mar - Tue, 24 Mar
United Airlines Logo
15:16 - 10:00
SEA
-
MEL
23h 44m2 stops
United Airlines Logo
10:30 - 13:36
MEL
-
SEA
21h 06m1 stop
$1,533United Airlines
Thu, 19 Feb - Wed, 11 Mar

American Airlines flights from Seattle to Melbourne Airport

Our best American Airlines deals on Seattle to Melbourne Airport flight tickets
American Airlines
10 Mar
SEA15:00Seattle/Tacoma Intl
24h 30m
2 stops
MEL09:30Melbourne
24 Mar
MEL12:00Melbourne
24h 53m
1 stop
SEA18:53Seattle/Tacoma Intl
$1,500
Find similar
American Airlines
10 Mar
SEA19:24Seattle/Tacoma Intl
20h 06m
1 stop
MEL09:30Melbourne
24 Mar
MEL16:25Melbourne
24h 27m
2 stops
SEA22:52Seattle/Tacoma Intl
$1,526
Find similar
American Airlines
10 Mar
SEA15:00Seattle/Tacoma Intl
24h 30m
2 stops
MEL09:30Melbourne
24 Mar
MEL16:25Melbourne
24h 27m
2 stops
SEA22:52Seattle/Tacoma Intl
$1,532
Find similar

Qantas Airways flights from Seattle to Melbourne Airport

Our best Qantas Airways deals on Seattle to Melbourne Airport flight tickets
Qantas Airways
29 Jan
SEA15:57Seattle/Tacoma Intl
22h 33m
1 stop
MEL09:30Melbourne
24 Mar
MEL18:20Melbourne
21h 34m
2 stops
SEA21:54Seattle/Tacoma Intl
$1,518
Find similar
Qantas Airways
22 Jan
SEA17:53Seattle/Tacoma Intl
20h 37m
1 stop
MEL09:30Melbourne
3 Feb
MEL12:00Melbourne
24h 52m
1 stop
SEA17:52Seattle/Tacoma Intl
$1,529
Find similar
Qantas Airways
22 Jan
SEA17:53Seattle/Tacoma Intl
20h 37m
1 stop
MEL09:30Melbourne
3 Feb
MEL18:20Melbourne
21h 14m
2 stops
SEA20:34Seattle/Tacoma Intl
$1,586
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Melbourne Airport 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 78,305 searches. Data last updated 5 December 2025.
Use the filters below to find and compare flights from Seattle to Melbourne Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 10/3

15:00-09:30

2 stops24h 30m

Melbourne

Tue 24/3

12:00-18:53

1 stop24h 53m

$1,500

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 21/2

16:50-12:25

2 stops24h 35m

Melbourne

Sat 7/3

13:55-17:00

2 stops22h 05m

$1,515

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 29/1

15:57-09:30

1 stop22h 33m

Melbourne

Tue 24/3

18:20-21:54

2 stops21h 34m

$1,518

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 24/1

15:40-17:15

2 stops30h 35m

Melbourne

Mon 9/2

07:45-14:31

2 stops25h 46m

$1,521

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 30/12

20:00-14:15

2 stops23h 15m

Melbourne

Mon 2/2

07:10-09:31

2 stops21h 21m

$1,524

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 10/3

19:24-09:30

1 stop20h 06m

Melbourne

Tue 24/3

16:25-22:52

2 stops24h 27m

$1,526

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 30/12

09:06-09:30

1 stop29h 24m

Melbourne

Mon 2/2

11:30-11:41

1 stop19h 11m

$1,527

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 22/1

17:53-09:30

1 stop20h 37m

Melbourne

Tue 3/2

12:00-17:52

1 stop24h 52m

$1,529

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 10/3

15:00-09:30

2 stops24h 30m

Melbourne

Tue 24/3

16:25-22:52

2 stops24h 27m

$1,532

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 19/2

15:16-10:00

2 stops23h 44m

Melbourne

Wed 11/3

10:30-13:36

1 stop21h 06m

$1,533

Flights are sorted by cheapest return 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 Airport

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 Airport?

The month of March is another great option to travel to Melbourne Airport, with average flight prices from Seattle averaging around $1,677.

What is the cheapest day to depart on your flight to Melbourne Airport?

The cheapest day to depart from Seattle to Melbourne Airport is on a Saturday. Travellers who choose to depart for Melbourne Airport on a Saturday will often find tickets for as low as $1,751. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $2,651.

What is the cheapest time of day to depart on your flight to Melbourne Airport?

Our most recent data shows that the best time of day to fly to Melbourne Airport is in the evening. Flights from Seattle to Melbourne Airport during this time can be as low as $1,872. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $2,240 on average. Flights to Melbourne Airport from Seattle in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Melbourne Airport?

You are more likely to see cheaper flights to Melbourne Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Melbourne Airport for around $2,065 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne Airport from Seattle for as low as $1,340 on momondo.

Can stopping save me money on Seattle to Melbourne Airport flights?

You could potentially save up to 13% on your flight if you consider stops on a Seattle to Melbourne Airport flight.

How have Seattle to Melbourne Airport flight prices changed over time?

As of December 2025, prices for Seattle to Melbourne Airport flights are approximately 21% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Melbourne Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Melbourne Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to Melbourne Airport (SEA to MEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Melbourne Airport

Fastest flight time

21h 40m

Direct flights

None
The fastest flight from Seattle to Melbourne Airport takes 21h 40m
There are no direct flights from Seattle to Melbourne Airport. There are no popular flight routes from Seattle to Melbourne Airport.
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  • How far is Seattle/Tacoma Intl to Melbourne by plane?

    Melbourne is 13170.7 km away from Seattle/Tacoma Intl. Flights usually cover this in 20h 06m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Melbourne Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Melbourne Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Melbourne Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Melbourne Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Melbourne Airport.

  • What documentation or ID do you need to fly to Melbourne Airport?

    The necessary travel and health documents for your Melbourne Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Melbourne Airport?

Best airlines flying from Seattle to Melbourne Airport

Compare and see reviews for airlines that fly from Seattle to Melbourne Airport with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,638Free cancellationRating
7.4
9,066 reviews
Search United Airlines flights

Travelling to a place near Melbourne?

Book flights to Melbourne if you plan to visit one of these locations
Geelong
Ballarat
Lorne
Apollo Bay
Dandenong
Torquay
Phillip Island
Sorrento
Tullamarine
Daylesford
Shepparton
St Kilda
Doncaster
Mornington
Brighton

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?

Yes. momondo enables you to select and highlight flights to Melbourne from Seattle with this policy.

How can momondo help me find flights from Seattle to Melbourne?

momondo helps you find the best flight between Seattle and Melbourne by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Melbourne right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Melbourne, momondo offers a useful price alert feature which will track prices for flights to Melbourne from Seattle and alert you when they change.

An easier way to manage your Melbourne Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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