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Cheap flights from Seattle to Melbourne Airport from $729

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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Melbourne are usually found in February or March, booked 68 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap 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 6 November 2025.

Round-trip from

$1,539

One-way from

$729

Popular in

December

Cheapest in

February

Average price

$2,463
26/1-4/2
  • 26/1-4/2
  • 4 total stops
  • 48h 41m total
  • Seattle to Melbourne
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Philippine Airlines
  • Philippine Airlines
  • 16/11
  • 1 total stop
  • 40h 05m total
  • Seattle to Melbourne
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($451 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($79 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 6 November 2025.

Thu 4/1213:05SEA - MEL
1 stop25h 55mUnited Airlines
Thu 11/1213:00MEL - SEA
1 stop21h 29mUnited Airlines
Deal found 4/11$1,687
Wed 10/1214:05SEA - MEL
1 stop22h 55mDelta
Sun 8/210:10MEL - SEA
1 stop21h 48mDelta
Deal found 4/11$1,697
Fri 12/1213:40SEA - MEL
2 stops48h 50mUnited Airlines
Sun 28/1213:00MEL - SEA
1 stop24h 45mUnited Airlines
Deal found 5/11$1,720
Tue 2/1220:00SEA - MEL
2 stops26h 25mMultiple Airlines
Tue 9/1212:00MEL - SEA
1 stop24h 28mMultiple Airlines
Deal found 4/11$1,824
Mon 10/1106:20SEA - MEL
2 stops35h 10mCathay Pacific
Thu 26/208:40MEL - SEA
2 stops33h 12mCathay Pacific
Deal found 5/11$1,919
Mon 10/1115:40SEA - MEL
2 stops28h 50mMultiple Airlines
Thu 26/207:10MEL - SEA
2 stops21h 21mMultiple Airlines
Deal found 4/11$1,935
Sat 13/1205:00SEA - MEL
2 stops33h 30mUnited Airlines
Sat 27/1213:00MEL - SEA
1 stop27h 07mUnited Airlines
Deal found 4/11$1,939
Sun 21/1205:00SEA - MEL
2 stops34h 00mUnited Airlines
Sun 28/1213:00MEL - SEA
1 stop38h 23mUnited Airlines
Deal found 4/11$1,950

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 6 November 2025.
Use the filters below to find and compare flights from Seattle to Melbourne Airport that are best for you.

Fly from

Seattle

Fly to

Melbourne

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 11/2

17:12-09:30

1 stop21h 18m

Melbourne

Sun 22/2

11:30-21:01

2 stops28h 31m

$1,685

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 10/2

12:35-10:00

1 stop26h 25m

Melbourne

Mon 20/4

10:55-18:07

1 stop24h 12m

$1,685

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 5/12

13:05-10:00

1 stop25h 55m

Melbourne

Fri 12/12

11:30-16:09

1 stop23h 39m

$1,687

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 29/1

09:25-10:00

1 stop29h 35m

Melbourne

Tue 24/3

12:00-16:14

1 stop22h 14m

$1,687

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 15/4

09:02-08:15

1 stop30h 13m

Melbourne

Sun 26/4

10:55-20:48

1 stop26h 53m

$1,687

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 4/12

13:05-10:00

1 stop25h 55m

Melbourne

Thu 11/12

13:00-15:29

1 stop21h 29m

$1,687

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 2/3

12:55-09:30

2 stops25h 35m

Melbourne

Thu 12/3

12:00-18:09

2 stops24h 09m

$1,693

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 21/2

12:55-10:00

2 stops26h 05m

Melbourne

Sat 7/3

13:00-20:46

1 stop26h 46m

$1,693

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 16/11

21:30-08:35

1 stop40h 05m

$729

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 10/2

17:53-09:30

1 stop20h 37m

$850

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 18 results
1
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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?

Use this chart to determine the optimal time to book a return flight from Seattle to Melbourne. Price data was last updated on 31 October 2025.

The best time to book flights from Seattle to Melbourne Airport is 67 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, May is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,246). Flying from Seattle to Melbourne Airport in April is currently the most expensive (average of $1,865). 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.

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 6 November 2025.
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
9,002 reviews
Check prices

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,002 reviews
United Airlines
7.4
Good
9,002 reviews
Check prices

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 can get you from Seattle to Melbourne Airport in just under 21h 18m. Your travel time can differ by up to . There are 13164 km between Seattle and Melbourne Airport.

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

    Currently priced at $1,552, 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 26% 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, May is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,246). Flying from Seattle to Melbourne Airport in April is currently the most expensive (average of $1,865). 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
Geelong
Dandenong
Ballarat
Apollo Bay
St Kilda
Lorne
Tullamarine
Phillip Island
Shepparton
Torquay
Daylesford
Mornington
Sorrento
Brighton
Doncaster

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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,552Average$2,119FlexibilityNo 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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