Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Melbourne from $633

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 12/10. 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 return flights

Enter your travel dates to find the best prices.
Philippine Airlines Logo
23:10 - 06:30
SEA
-
MEL
38h 20m
1 stop
Philippine Airlines Logo
07:30 - 20:05
MEL
-
SEA
30h 35m
1 stop
$1,419Philippine Airlines
Tue, 15 Sep - Tue, 6 Oct
American Airlines Logo
11:40 - 06:45
SEA
-
MEL
26h 05m
1 stop
American Airlines Logo
13:35 - 22:26
MEL
-
SEA
25h 51m
1 stop
$1,516American Airlines
Thu, 6 Aug - Wed, 19 Aug
Qantas Airways Logo
17:10 - 06:45
SEA
-
MEL
20h 35m
1 stop
Qantas Airways Logo
09:45 - 12:20
MEL
-
SEA
19h 35m
1 stop
$1,525Qantas Airways
Thu, 6 Aug - Wed, 19 Aug
United Airlines Logo
19:05 - 08:15
SEA
-
MEL
20h 10m
1 stop
United Airlines Logo
09:30 - 15:45
MEL
-
SEA
23h 15m
1 stop
$1,526United Airlines
Thu, 6 Aug - Wed, 19 Aug
Multiple Airlines Logo
13:38 - 06:45
SEA
-
MEL
24h 07m
1 stop
Multiple Airlines Logo
09:45 - 12:20
MEL
-
SEA
19h 35m
1 stop
$1,527Multiple Airlines
Thu, 6 Aug - Wed, 19 Aug
American Airlines Logo
17:02 - 06:45
SEA
-
MEL
20h 43m
1 stop
American Airlines Logo
09:45 - 16:32
MEL
-
SEA
23h 47m
1 stop
$1,529American Airlines
Thu, 6 Aug - Wed, 19 Aug
United Airlines Logo
15:33 - 08:15
SEA
-
MEL
23h 42m
1 stop
United Airlines Logo
09:30 - 21:15
MEL
-
SEA
28h 45m
2 stops
$1,532United Airlines
Thu, 6 Aug - Wed, 19 Aug
United Airlines Logo
19:25 - 11:35
SEA
-
MEL
22h 10m
2 stops
United Airlines Logo
11:55 - 16:24
MEL
-
SEA
22h 29m
1 stop
$1,537United Airlines
Sat, 3 Oct - Sun, 18 Oct
American Airlines Logo
07:00 - 06:45
SEA
-
MEL
30h 45m
1 stop
American Airlines Logo
09:45 - 21:45
MEL
-
SEA
29h 00m
1 stop
$1,539American Airlines
Fri, 3 Jul - Sat, 11 Jul
American Airlines Logo
14:20 - 06:45
SEA
-
MEL
23h 25m
1 stop
American Airlines Logo
09:45 - 21:45
MEL
-
SEA
29h 00m
1 stop
$1,540American Airlines
Fri, 3 Jul - Sat, 11 Jul

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Philippine Airlines flights from Seattle to Melbourne

Our best Philippine Airlines deals on Seattle to Melbourne flight tickets
Philippine Airlines
15 Sept
SEA23:10Seattle/Tacoma Intl
38h 20m
1 stop
MEL06:30Melbourne
6 Oct
MEL07:30Melbourne
30h 35m
1 stop
SEA20:05Seattle/Tacoma Intl
$1,419
Philippine Airlines
15 Nov
SEA23:55Seattle/Tacoma Intl
36h 25m
1 stop
MEL07:20Melbourne
29 Nov
MEL09:00Melbourne
29h 35m
1 stop
SEA19:35Seattle/Tacoma Intl
$1,642

United Airlines flights from Seattle to Melbourne

Our best United Airlines deals on Seattle to Melbourne flight tickets
United Airlines
6 Aug
SEA19:05Seattle/Tacoma Intl
20h 10m
1 stop
MEL08:15Melbourne
19 Aug
MEL09:30Melbourne
23h 15m
1 stop
SEA15:45Seattle/Tacoma Intl
$1,526
United Airlines
6 Aug
SEA15:33Seattle/Tacoma Intl
23h 42m
1 stop
MEL08:15Melbourne
19 Aug
MEL09:30Melbourne
28h 45m
2 stops
SEA21:15Seattle/Tacoma Intl
$1,532
United Airlines
3 Oct
SEA19:25Seattle/Tacoma Intl
22h 10m
2 stops
MEL11:35Melbourne
18 Oct
MEL11:55Melbourne
22h 29m
1 stop
SEA16:24Seattle/Tacoma Intl
$1,537

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 20 June 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 return flight

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 15/9

23:10-06:30

1 stop38h 20m

Melbourne

Tue 6/10

07:30-20:05

1 stop30h 35m

$1,419

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

11:40-06:45

1 stop26h 05m

Melbourne

Wed 19/8

13:35-22:26

1 stop25h 51m

$1,516
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

17:10-06:45

1 stop20h 35m

Melbourne

Wed 19/8

09:45-12:20

1 stop19h 35m

$1,525

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

19:05-08:15

1 stop20h 10m

Melbourne

Wed 19/8

09:30-15:45

1 stop23h 15m

$1,526

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

13:38-06:45

1 stop24h 07m

Melbourne

Wed 19/8

09:45-12:20

1 stop19h 35m

$1,527

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

17:02-06:45

1 stop20h 43m

Melbourne

Wed 19/8

09:45-16:32

1 stop23h 47m

$1,529

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

15:33-08:15

1 stop23h 42m

Melbourne

Wed 19/8

09:30-21:15

2 stops28h 45m

$1,532

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 3/10

19:25-11:35

2 stops22h 10m

Melbourne

Sun 18/10

11:55-16:24

1 stop22h 29m

$1,537

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/7

07:00-06:45

1 stop30h 45m

Melbourne

Sat 11/7

09:45-21:45

1 stop29h 00m

$1,539

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/7

14:20-06:45

1 stop23h 25m

Melbourne

Sat 11/7

09:45-21:45

1 stop29h 00m

$1,540

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

What is the cheapest month to fly to Melbourne?

In general, January 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 $138. If you aren’t able to travel to Melbourne during the month of January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $338.

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 $1,773 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne from Seattle for as low as $1,470 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

21h 26m

Direct flights

None
The fastest flight from Seattle to Melbourne takes 21h 26m
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?

    Melbourne is 13172.3 km away from Seattle/Tacoma Intl. A reasonable flight in good conditions will take 21h 26m.

  • 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?

    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.

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

    The necessary travel and health documents for your Melbourne 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.

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
United AirlinesPriceFrom $1,443Free cancellationRating
7.4
9,865 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Melbourne?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Melbourne from Seattle.

Can I find flights from Seattle to Melbourne with flexible booking policies on momondo?

Yes. All flights to Melbourne from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Of course. momondo tracks the price of Seattle to Melbourne flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Melbourne 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 20/7
Mon 27/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Fly into one of these airports located in Melbourne

Airports listed have a maximum distance of 50.4 km from Melbourne
Melbourne Avalon Airport