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Cheap flights from Seattle to Melbourne Airport from $794

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
6 Jun — 13 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Melbourne

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Melbourne
Explore the most affordable flight options available from Seattle to Melbourne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 May 2026.

Fri 25/915:55
SEA
-
MEL
1 stop21h 50m
Qantas Airways
Fri 23/1009:45
MEL
-
SEA
1 stop20h 31m
Qantas Airways
Deal found 4/5$1,460
Fri 25/915:55
SEA
-
MEL
1 stop21h 50m
Multiple Airlines
Fri 23/1009:45
MEL
-
SEA
1 stop20h 31m
Multiple Airlines
Deal found 3/5$1,470
Fri 24/711:40
SEA
-
MEL
2 stops26h 05m
American Airlines
Tue 11/809:45
MEL
-
SEA
1 stop23h 47m
American Airlines
Deal found 3/5$1,483
Mon 18/515:50
SEA
-
MEL
1 stop21h 55m
Multiple Airlines
Wed 3/609:45
MEL
-
SEA
1 stop20h 18m
Multiple Airlines
Deal found 4/5$1,493
Wed 1/707:00
SEA
-
MEL
1 stop30h 45m
American Airlines
Sat 11/709:45
MEL
-
SEA
1 stop21h 03m
American Airlines
Deal found 5/5$1,495
Mon 11/521:06
SEA
-
MEL
1 stop40h 39m
Multiple Airlines
Wed 27/509:45
MEL
-
SEA
1 stop23h 51m
Multiple Airlines
Deal found 4/5$1,496
Mon 11/512:51
SEA
-
MEL
2 stops26h 24m
United Airlines
Wed 27/509:30
MEL
-
SEA
2 stops25h 29m
United Airlines
Deal found 4/5$1,500
Wed 20/511:11
SEA
-
MEL
2 stops26h 34m
American Airlines
Wed 3/609:45
MEL
-
SEA
1 stop29h 04m
American Airlines
Deal found 6/5$1,501
Mon 18/506:10
SEA
-
MEL
1 stop31h 35m
American Airlines
Thu 28/509:45
MEL
-
SEA
1 stop21h 12m
American Airlines
Deal found 3/5$1,504
Mon 18/519:36
SEA
-
MEL
1 stop19h 39m
United Airlines
Wed 3/609:30
MEL
-
SEA
2 stops28h 40m
United Airlines
Deal found 4/5$1,508
Fri 14/818:51
SEA
-
MEL
1 stop19h 39m
United Airlines
Sun 30/809:30
MEL
-
SEA
2 stops28h 41m
United Airlines
Deal found 6/5$1,510

Find flight deals from Seattle to Melbourne

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Melbourne (MEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 May 2026.

Round-trip from

$1,460

One-way from

$794

Popular in

December

Cheapest in

March

Average price

$1,989
Qantas Airways
  • Qantas Airways
  • 25/9-23/10
  • 2 total stops
  • 42h 21m total
  • Seattle to Melbourne
Search Deals
19/9
  • 19/9
  • 3 total stops
  • 40h 40m total
  • Seattle to Melbourne
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($396 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($59 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights 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, Cheapflights users made 647,157 searches. Data last updated 7 May 2026.
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

Cheapest return flight

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 18/5

15:50-06:45

1 stop21h 55m

Melbourne

Fri 29/5

09:45-16:36

1 stop23h 51m

$1,493

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 18/5

12:34-07:30

1 stop25h 56m

Melbourne

Fri 29/5

09:30-21:10

2 stops28h 40m

$1,508

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 15/8

17:22-08:15

1 stop21h 53m

Melbourne

Thu 27/8

10:55-14:22

1 stop20h 27m

$1,510

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 16/8

19:35-08:15

1 stop19h 40m

Melbourne

Fri 28/8

09:30-15:48

1 stop23h 18m

$1,510

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 18/5

13:25-07:50

2 stops25h 25m

Melbourne

Fri 29/5

10:00-22:03

2 stops29h 03m

$1,525

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

09:40-07:50

2 stops29h 10m

Melbourne

Fri 23/10

11:00-16:59

1 stop23h 59m

$1,526

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 26/9

17:05-10:00

2 stops23h 55m

Melbourne

Sun 4/10

17:35-21:52

2 stops22h 17m

$1,572

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 1/9

17:45-07:50

2 stops45h 05m

Melbourne

Wed 16/9

10:00-16:52

2 stops23h 52m

$1,714

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 17/10

17:59-13:00

2 stops25h 01m

Melbourne

Wed 21/10

14:25-18:33

2 stops22h 08m

$1,733
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 17/8

19:35-08:15

1 stop19h 40m

Melbourne

Sat 29/8

10:55-16:15

1 stop22h 20m

$1,800

Flights are sorted by cheapest return flights first.

Deals found on 3/5

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Seattle to Melbourne

Have a flexible travel schedule? Discover the best time to fly to Melbourne from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Melbourne Airport

How far ahead should I book a flight from Seattle to Melbourne Airport?

The best time to book flights from Seattle to Melbourne Airport is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Melbourne Airport?

Currently, March is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,428). Flying from Seattle to Melbourne Airport in December is currently the most expensive (average of $2,294). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Seattle to Melbourne Airport?

Reviews of airlines servicing Melbourne

Get insights into the airlines that provide service to Melbourne. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Melbourne. Reviews last updated 7 May 2026.
Read through reviews of airlines operating flights from Seattle to Melbourne Airport, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,690 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,690 reviews
United Airlines
7.4
Good
9,690 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Melbourne. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Melbourne?

    If you book a flight to Melbourne from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle. There are 0 flights from Seattle/Tacoma Intl to Melbourne per day from 1 airline.

  • How long is the flight from Seattle to Melbourne Airport?

    United Airlines and Delta can get you from Seattle to Melbourne Airport in just under 25h 25m. Your travel time can differ by up to 31m. There are 13164 km between Seattle and Melbourne Airport. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to Melbourne Airport round-trip?

    Currently priced at $1,397, United Airlines will fly you from Seattle to Melbourne Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. You may be able to fly from Seattle to Melbourne Airport for 23% less than the average price by searching for this airline.

  • Can I find deals for flights from Seattle to Melbourne that include hotel bookings?

    Yes. In addition to deals on Seattle to Melbourne flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Melbourne?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Melbourne.

  • Can I find deals for business class flights from Seattle to Melbourne?

    Yes. Cheapflights offers flight deals from Seattle to Melbourne by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Melbourne Airport?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,428). Flying from Seattle to Melbourne Airport in December is currently the most expensive (average of $2,294). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Melbourne Airport?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Melbourne

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Melbourne flights

Top airline flying from Seattle to Melbourne

Discover the top airline that operate flights from Seattle to Melbourne. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 7 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,397Average$1,878FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Melbourne?

Deals for Seattle to Melbourne flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Melbourne?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Melbourne for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Seattle to Melbourne with no change fees?

Yes, we can. To see specific flights from Seattle to Melbourne with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Melbourne become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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