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Cheap flights from Seattle to Melbourne Airport from $730

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

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 8 January 2026.

Round-trip from

$1,383

One-way from

$730

Popular in

November

Cheapest in

March

Average price

$2,019
Qantas Airways
  • Qantas Airways
  • 19/2-26/2
  • 3 total stops
  • 52h 53m total
  • Seattle to Melbourne
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5/2
  • 5/2
  • 1 total stop
  • 27h 39m total
  • Seattle to Melbourne
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($368 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease ($58 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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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 8 January 2026.

Thu 19/216:50SEA - MEL
1 stop21h 40mQantas Airways
Thu 26/206:45MEL - SEA
2 stops31h 13mQantas Airways
Deal found 4/1$1,383
Thu 19/215:40SEA - MEL
2 stops27h 25mMultiple Airlines
Thu 26/207:40MEL - SEA
2 stops20h 35mMultiple Airlines
Deal found 4/1$1,409
Mon 6/420:00SEA - MEL
2 stops22h 25mMultiple Airlines
Thu 16/406:00MEL - SEA
2 stops26h 03mMultiple Airlines
Deal found 6/1$1,410
Tue 21/420:00SEA - MEL
2 stops22h 25mMultiple Airlines
Sun 3/521:40MEL - SEA
2 stops28h 35mMultiple Airlines
Deal found 7/1$1,417
Sat 21/220:00SEA - MEL
2 stops22h 35mAir Canada
Sat 7/308:10MEL - SEA
2 stops20h 21mAir Canada
Deal found 5/1$1,419
Fri 24/420:00SEA - MEL
2 stops22h 05mAir Canada
Mon 4/506:00MEL - SEA
2 stops25h 20mAir Canada
Deal found 7/1$1,420
Sun 1/220:00SEA - MEL
2 stops23h 15mAir Canada
Sat 14/207:10MEL - SEA
2 stops31h 06mAir Canada
Deal found 7/1$1,422
Fri 3/420:00SEA - MEL
2 stops22h 35mAir Canada
Sun 12/421:40MEL - SEA
2 stops34h 23mAir Canada
Deal found 6/1$1,428
Fri 20/209:55SEA - MEL
2 stops34h 40mAir Canada
Fri 27/208:10MEL - SEA
2 stops20h 05mAir Canada
Deal found 6/1$1,431
Mon 2/320:00SEA - MEL
2 stops21h 40mMultiple Airlines
Thu 12/307:10MEL - SEA
2 stops25h 51mMultiple Airlines
Deal found 6/1$1,434

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 8 January 2026.
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

Sun 1/2

13:39-09:30

1 stop24h 51m

Melbourne

Sat 14/2

12:00-17:00

1 stop24h 00m

$1,536

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 3/4

12:22-08:30

1 stop26h 08m

Melbourne

Sun 12/4

09:30-11:37

1 stop19h 07m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 4/3

17:20-10:00

1 stop21h 40m

Melbourne

Sun 15/3

12:00-16:14

1 stop22h 14m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 1/2

17:10-10:00

1 stop21h 50m

Melbourne

Sat 14/2

11:30-21:01

2 stops28h 31m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 29/1

19:30-10:00

1 stop19h 30m

Melbourne

Tue 24/3

12:00-18:50

1 stop24h 50m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 23/3

16:31-08:30

1 stop21h 59m

Melbourne

Thu 2/4

11:55-20:57

1 stop27h 02m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 20/2

19:33-10:00

1 stop19h 27m

Melbourne

Fri 27/2

13:00-21:01

1 stop27h 01m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 6/2

12:24-09:30

1 stop26h 06m

Melbourne

Fri 13/2

11:30-21:01

2 stops28h 31m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 11/2

17:10-10:00

1 stop21h 50m

Melbourne

Sun 22/2

13:00-21:01

1 stop27h 01m

$1,570

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 20/2

08:45-07:25

1 stop27h 40m

$772

Flights are sorted by cheapest return flights first.

Deals found on 4/1

Showing 1-10 of 18 results
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?

Use this chart to determine the optimal time to book a return flight from Seattle to Melbourne. Price data was last updated on 2 January 2026.

The best time to book flights from Seattle to Melbourne Airport is 73 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 $1,201). Flying from Seattle to Melbourne Airport in June is currently the most expensive (average of $1,570). 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 8 January 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
9,139 reviews
Check prices

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,139 reviews
United Airlines
7.4
Good
9,139 reviews
Check prices

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 26h 08m. 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 $1,607, 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 18% less than the average price by searching for this airline.

  • What are the cheapest airlines to fly from Seattle to Melbourne Airport one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $572. Users have also found prices from $732 and $857 on Qantas Airways and United Airlines, respectively.

  • 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 $1,201). Flying from Seattle to Melbourne Airport in June is currently the most expensive (average of $1,570). 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
Apollo Bay
Ballarat
St Kilda
Tullamarine
Lorne
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 8 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,607Average$2,040FlexibilityNo 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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