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$433+ Cheap flights from Seattle (SEA) to Melbourne

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap flight deals from Seattle to Melbourne

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 February 24, 2026.

This BusinessClass deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/183:40 pm
SEA
-
MEL
2 stops29h 25m
Multiple Airlines
Fri 4/246:00 am
MEL
-
SEA
2 stops20h 35m
Multiple Airlines
Deal found 2/20$905
This oojo deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:10 pm
SEA
-
MEL
1 stop38h 20m
Philippine Airlines
Wed 9/308:00 am
MEL
-
SEA
1 stop29h 05m
Philippine Airlines
Deal found 2/23$934
This flugladen.de deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:00 am
SEA
-
MEL
2 stops37h 25m
Multiple Airlines
Sat 9/51:30 pm
MEL
-
SEA
2 stops23h 35m
Multiple Airlines
Deal found 2/23$936
This oojo deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:10 pm
SEA
-
MEL
1 stop38h 20m
Philippine Airlines
Tue 9/156:30 am
MEL
-
SEA
1 stop30h 35m
Philippine Airlines
Deal found 2/23$941
This Air Canada deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:00 pm
SEA
-
MEL
2 stops22h 20m
Multiple Airlines
Mon 5/46:00 am
MEL
-
SEA
2 stops25h 20m
Multiple Airlines
Deal found 2/20$960
This Air Canada deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/273:40 pm
SEA
-
MEL
2 stops26h 40m
Air Canada
Fri 4/246:00 am
MEL
-
SEA
2 stops20h 35m
Air Canada
Deal found 2/20$969
This Trip.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:55 pm
SEA
-
MEL
2 stops25h 05m
Multiple Airlines
Thu 9/171:30 pm
MEL
-
SEA
2 stops23h 35m
Multiple Airlines
Deal found 2/20$984
This KAYAK deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:10 pm
SEA
-
MEL
1 stop38h 20m
Philippine Airlines
Tue 9/16:30 am
MEL
-
SEA
1 stop30h 35m
Philippine Airlines
Deal found 2/23$985
This KAYAK deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:25 pm
SEA
-
MEL
1 stop24h 30m
Cathay Pacific
Tue 9/12:25 pm
MEL
-
SEA
1 stop36h 55m
Cathay Pacific
Deal found 2/23$998
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:25 pm
SEA
-
MEL
1 stop40h 50m
Cathay Pacific
Mon 8/317:25 am
MEL
-
SEA
1 stop43h 55m
Cathay Pacific
Deal found 2/21$1,011
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:25 pm
SEA
-
MEL
1 stop24h 30m
Cathay Pacific
Mon 8/317:25 am
MEL
-
SEA
1 stop43h 55m
Cathay Pacific
Deal found 2/23$1,021
This BusinessClass deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:55 pm
SEA
-
AVV
2 stops30h 25m
Multiple Airlines
Sat 6/62:55 pm
AVV
-
SEA
2 stops35h 20m
Multiple Airlines
Deal found 2/23$1,145

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 (ME1). 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 February 24, 2026.

Round-trip from

$905
(BusinessClass)

One-way from

$433
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$1,057
From Seattle/Tacoma Intl to Melbourne
Search Deals
One-way flight from Seattle/Tacoma Intl to Melbourne
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($189 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated February 24, 2026.
Use the filters below to find and compare flights from Seattle to Melbourne that are best for you.

Fly from

Seattle

Fly to

Melbourne

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 8/17

12:25 pm-5:55 am

1 stop24h 30m

Melbourne

Tue 9/1

2:25 pm-10:20 am

1 stop36h 55m

$998

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 3/10

5:50 pm-9:30 am

1 stop21h 40m

Melbourne

Wed 3/18

12:00 pm-6:53 pm

1 stop24h 53m

$1,038

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 4/9

7:37 pm-8:15 am

1 stop19h 38m

Melbourne

Thu 4/16

10:55 am-6:35 pm

1 stop24h 40m

$1,063

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 3/7

12:55 pm-9:30 am

2 stops25h 35m

Melbourne

Wed 3/11

12:00 pm-6:04 pm

2 stops24h 04m

$1,067

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 3/10

8:59 am-8:30 am

2 stops29h 31m

Melbourne

Tue 3/24

12:00 pm-6:04 pm

2 stops24h 04m

$1,067

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 3/10

3:30 pm-8:30 am

2 stops23h 00m

Melbourne

Wed 3/18

12:00 pm-9:14 pm

2 stops27h 14m

$1,067

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 4/6

7:37 pm-8:15 am

1 stop19h 38m

Melbourne

Mon 4/13

10:55 am-11:27 pm

1 stop29h 32m

$1,129

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 4/7

11:35 pm-8:15 am

2 stops39h 40m

Melbourne

Tue 4/14

10:55 am-9:06 pm

2 stops27h 11m

$1,227

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 4/2

3:48 pm-8:30 am

2 stops46h 42m

Melbourne

Mon 4/13

10:55 am-9:46 am

2 stops39h 51m

$1,242

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Thu 4/9

9:42 pm-10:50 pm

2 stops56h 08m

Melbourne Avalon

Thu 4/16

6:00 am-11:40 pm

2 stops34h 40m

$1,467

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 31 results
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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 round-trip 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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Melbourne. Price data was last updated on February 20, 2026.

The best time to book flights from Seattle to Melbourne 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?

Currently, August is the cheapest month in which you can book a flight from Seattle to Melbourne (average of $800). Flying from Seattle to Melbourne in April is currently the most expensive (average of $1,007). 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 February 24, 2026.
Read reviews from past customers who have flown Alaska Airlines, Qantas Airways, and United Airlines from Seattle to Melbourne. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,949 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,949 reviews
Alaska Airlines
8.0
Very good
11,949 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Qantas Airways
7.5
Good
998 reviews
Alaska Airlines
8.0
Very good
11,949 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,346 reviews
Alaska Airlines
8.0
Very good
11,949 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Air Canada
7.1
Good
10,745 reviews
Alaska Airlines
8.0
Very good
11,949 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Melbourne. 4 airlines have flights from Seattle/Tacoma Intl to Melbourne on a regular basis. Booking flights from Seattle/Tacoma Intl to Melbourne should not be difficult; the airport handles an average of 0 outbound flights to Melbourne per day.

  • How long is the flight from Seattle to Melbourne?

    There are many flights that can get you from Seattle to Melbourne in 19h 38m. Fly via Cathay Pacific, Qantas Airways, or United Airlines to get the fastest option. The distance between Seattle and Melbourne is about 8180 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Melbourne round-trip?

    According to our current data, Alaska Airlines ($97), Air Canada ($824), and United Airlines ($1,011) offers the cheapest pricing from Seattle to Melbourne. Alaska Airlines is currently priced 92% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Seattle to Melbourne are Qantas Airways ($495), United Airlines ($578), and Delta ($591).

  • 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 vacation 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?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Melbourne (average of $800). Flying from Seattle to Melbourne in April is currently the most expensive (average of $1,007). 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

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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.
Seattle to Melbourne flights
Portland to Melbourne flights
Seattle to Avalon flights
Portland to Avalon flights

Top 4 airlines flying from Seattle to Melbourne

Discover the top 4 airlines 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 2,558,603 searches. Data last updated February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$97Average$1,632FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$824Average$1,064FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,011Average$1,510FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,034Average$1,166FlexibilityNo cancel feeOn-time74%

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