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$419+ Cheap flights from Seattle (SEA) to Melbourne (MEL)

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Find cheap flights from Seattle to Melbourne with Cheapflights

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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 March 11, 2026.

This Trip.com deal was found by Cheapflights users on 3/7. 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.
Mon 5/45:06 pm
SEA
-
MEL
2 stops26h 19m
Multiple Airlines
Mon 5/111:30 pm
MEL
-
SEA
2 stops23h 23m
Multiple Airlines
Deal found 3/7$874
This Trip.com deal was found by Cheapflights users on 3/7. 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.
Tue 4/215:59 pm
SEA
-
MEL
2 stops25h 01m
Multiple Airlines
Tue 4/281:25 pm
MEL
-
SEA
2 stops22h 15m
Multiple Airlines
Deal found 3/7$891
This oojo deal was found by Cheapflights users on 3/8. 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 8/2011:10 pm
SEA
-
MEL
1 stop38h 20m
Philippine Airlines
Wed 9/28:00 am
MEL
-
SEA
1 stop29h 05m
Philippine Airlines
Deal found 3/8$894
This Air Canada deal was found by Cheapflights users on 3/6. 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 3/6$902
This BusinessClass deal was found by Cheapflights users on 3/7. 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.
Wed 3/258:00 pm
SEA
-
MEL
2 stops34h 20m
Multiple Airlines
Fri 4/246:00 am
MEL
-
SEA
2 stops30h 20m
Multiple Airlines
Deal found 3/7$904
This Trip.com deal was found by Cheapflights users on 3/9. 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 4/237:40 am
SEA
-
MEL
2 stops35h 20m
Multiple Airlines
Thu 4/301:30 pm
MEL
-
SEA
2 stops23h 23m
Multiple Airlines
Deal found 3/9$930
This KAYAK deal was found by Cheapflights users on 3/7. 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
Wed 9/28:00 am
MEL
-
SEA
1 stop29h 05m
Philippine Airlines
Deal found 3/7$941
This Air Canada deal was found by Cheapflights users on 3/7. 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.
Mon 4/208:00 pm
SEA
-
MEL
2 stops22h 20m
Multiple Airlines
Mon 4/279:05 pm
MEL
-
SEA
2 stops29h 33m
Multiple Airlines
Deal found 3/7$968
This BusinessClass deal was found by Cheapflights users on 3/7. 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.
Mon 4/138:00 pm
SEA
-
MEL
2 stops22h 05m
Multiple Airlines
Fri 4/176:00 am
MEL
-
SEA
2 stops30h 20m
Multiple Airlines
Deal found 3/7$977
This KAYAK deal was found by Cheapflights users on 3/8. 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.
Thu 4/3011:45 am
SEA
-
MEL
1 stop41h 30m
Cathay Pacific
Sun 5/1711:45 pm
MEL
-
SEA
1 stop27h 20m
Cathay Pacific
Deal found 3/8$1,000
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Wed 5/611:45 am
SEA
-
MEL
1 stop25h 10m
Cathay Pacific
Wed 5/137:25 am
MEL
-
SEA
1 stop43h 40m
Cathay Pacific
Deal found 3/7$1,019

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$874
(Trip.com)

One-way from

$419
(Trip.com)

Popular in

November

Cheapest in

February

Average price

$1,093
Provider with most accurate pricing for Seattle/Tacoma Intl-Melbourne flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Melbourne flights.
Search Deals
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 ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 11, 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 round-trip

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 5/9

11:45 am-5:55 am

1 stop25h 10m

Melbourne

Wed 5/13

7:25 am-10:05 am

1 stop43h 40m

$1,083

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 4/12

3:48 pm-7:30 am

2 stops46h 42m

Melbourne

Sun 4/26

9:30 am-3:51 pm

1 stop23h 21m

$1,121

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 8/14

6:55 pm-7:50 am

1 stop19h 55m

Melbourne

Fri 8/28

10:00 am-4:55 pm

1 stop23h 55m

$1,308
Quickest round-trip

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 5/1

7:36 pm-8:15 am

1 stop19h 39m

Melbourne

Thu 5/14

10:55 am-12:25 pm

1 stop18h 30m

$1,400

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 8/15

3:33 pm-8:15 am

1 stop23h 42m

Melbourne

Thu 8/27

10:55 am-12:23 pm

1 stop18h 28m

$1,450

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 7/17

7:05 pm-8:15 am

1 stop20h 10m

Melbourne

Thu 7/30

10:55 am-6:47 pm

1 stop24h 52m

$1,750

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sat 5/9

7:06 pm-10:35 am

2 stops22h 29m

Melbourne

Wed 5/13

9:45 am-1:04 pm

1 stop20h 19m

$1,809

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 7/2

9:15 pm-5:25 pm

3 stops51h 10m

Melbourne

Wed 9/30

6:30 pm-9:52 pm

3 stops44h 22m

$2,388
Cheapest one-way

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 5/15

7:20 pm-11:25 am

2 stops23h 05m

$559

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 5/15

7:20 pm-11:35 am

2 stops23h 15m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Melbourne

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Melbourne in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Melbourne Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Melbourne Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Melbourne Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Melbourne Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Melbourne Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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 round-trip flight from Seattle to Melbourne. Price data was last updated on March 6, 2026.

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Melbourne Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $793). Flying from Seattle to Melbourne Airport in July is currently the most expensive (average of $1,107). 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 March 11, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andQantas Airways from Seattle to Melbourne Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

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
12,025 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

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.
Delta
7.9
Good
8,277 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

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
1,003 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

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
9,412 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

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
10,800 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

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) is the airport you will fly out of if you book a flight from Seattle to Melbourne. You should not have trouble finding flights to Melbourne from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Melbourne per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Seattle airport to Melbourne. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

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

    There are many flights that can get you from Seattle to Melbourne Airport in 19h 55m. Fly via Cathay Pacific, United Airlines, or Delta to get the fastest option. The distance from Seattle to Melbourne Airport is about 8180 mi. This flight may include one or multiple stops.

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

    Flying on Alaska Airlines is currently your cheapest option to Melbourne Airport, with prices starting at $97. Additional round-trip tickets that might be worth considering are offered by Delta and Air Canada, with the lowest prices starting at $237 and $828, respectively. Alaska Airlines is priced at 92% lower than the current average price of a flight leaving 3 months from now.

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

    $495 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $578 and $591, 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 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 Airport?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $793). Flying from Seattle to Melbourne Airport in July is currently the most expensive (average of $1,107). 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

Traveling to a place near Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Apollo Bay
Phillip Island
Doncaster
Tullamarine

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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 5 airlines flying from Seattle to Melbourne

Discover the top 5 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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$97Average$1,632FlexibilityNo cancel feeOn-time75%
DeltaCheapest$237Average$1,535FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$828Average$1,145FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,015Average$1,508FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,034Average$1,166FlexibilityNo cancel feeOn-time74%

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