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$533+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
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 August 11, 2026.

This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:40 am -
1 stop26h 05m
Wed 8/261:35 pm -
2 stops26h 46m
Deal found 8/11$1,013
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:03 am -
2 stops28h 12m
Wed 8/269:30 am -
1 stop26h 44m
Deal found 8/11$1,036
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:55 am -
1 stop28h 20m
Tue 9/110:55 am -
1 stop20h 29m
Deal found 8/10$1,045
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:30 pm -
1 stop20h 00m
Sun 9/69:00 am -
2 stops44h 20m
Deal found 8/9$1,059
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:30 pm -
1 stop24h 20m
Mon 11/2310:10 am -
1 stop21h 30m
Deal found 8/9$1,100

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 August 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,045
(United Airlines)

One-way from

$522
(American Airlines)

Popular in

December

Cheapest in

March

Average price

$1,163
Provider with most accurate pricing for Seattle/Tacoma Intl-Melbourne flight deals.
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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. 16% potential increase in price ($240 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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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 August 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 Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Wed 1/27

9:30 am-9:50 am

1 stop29h 20m

Melbourne

Wed 2/10

12:00 pm-4:53 pm

2 stops23h 53m

$1,105

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sun 10/4

9:05 am-9:15 am

1 stop30h 10m

Melbourne

Tue 10/13

11:55 am-6:44 pm

1 stop24h 49m

$1,105

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Mon 10/5

12:35 pm-8:50 am

1 stop26h 15m

Melbourne

Tue 10/13

11:00 am-7:02 pm

2 stops26h 02m

$1,105

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sun 9/27

7:25 pm-8:15 am

1 stop19h 50m

Melbourne

Sun 10/4

10:30 am-5:37 pm

2 stops25h 07m

$1,109

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sat 2/6

2:30 pm-8:00 am

1 stop22h 30m

Melbourne

Mon 2/15

10:10 am-10:05 pm

2 stops30h 55m

$1,120
Quickest round-trip

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sun 10/25

3:35 pm-9:30 am

1 stop23h 55m

Melbourne

Fri 11/27

12:45 pm-2:39 pm

1 stop20h 54m

$1,155

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Thu 9/17

4:25 pm-4:50 pm

1 stop31h 25m

Melbourne

Mon 9/21

10:45 pm-7:07 pm

2 stops37h 22m

$1,371

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Sat 2/6

3:50 pm-5:50 pm

1 stop31h 00m

Melbourne

Tue 2/16

5:10 pm-11:40 am

1 stop37h 30m

$1,376

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Tue 10/6

4:25 pm-11:40 pm

2 stops37h 15m

Melbourne

Mon 10/12

11:45 pm-12:25 pm

1 stop30h 40m

$1,534

SeattleMelbourne

SEA Seattle/Tacoma Intl - MEL Melbourne

SEAMEL

Seattle/Tacoma Intl

Fri 12/25

5:00 am-10:30 am

1 stop34h 30m

Melbourne

Sun 1/3

11:30 am-12:45 pm

2 stops68h 15m

$1,547

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 17 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 August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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?

Booking 72 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, March is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,034). Flying from Seattle to Melbourne Airport in December is currently the most expensive (average of $1,636). 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 to fly round-trip from Seattle to Melbourne Airport?

Airfare is below average for this route at the moment.

Seattle to Melbourne Airport flights typically cost between $1,091 and $1,224 in August.
The cheapest round-trip price found within the last 5 days was $1,045 on United Airlines (Aug 26-Sep 11).

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 August 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
7.9
Good
12,797 reviews

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
Alaska Airlines
7.9
Good
12,797 reviews
Alaska Airlines
7.9
Good
12,797 reviews

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
Delta
7.8
Good
8,506 reviews
Alaska Airlines
7.9
Good
12,797 reviews

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
Qantas Airways
7.5
Good
1,081 reviews
Alaska Airlines
7.9
Good
12,797 reviews

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
United Airlines
7.4
Good
10,109 reviews
Alaska Airlines
7.9
Good
12,797 reviews

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
Air Canada
7.1
Good
11,463 reviews
Alaska Airlines
7.9
Good
12,797 reviews

Boarding

8.1

Comfort

7.8

Food

7.0

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle

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 7 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 38m. Fly via 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 Air Canada and Delta, with the lowest prices starting at $385 and $570, 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?

    $497 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, March is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $1,034). Flying from Seattle to Melbourne Airport in December is currently the most expensive (average of $1,636). 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
Tullamarine
Dandenong
Apollo Bay
Phillip Island
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 7 airlines flying from Seattle to Melbourne

Discover the top 7 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 August 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$97Average$1,632FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$385Average$1,046FlexibilityNo cancel feeOn-time67%
DeltaCheapest$570Average$1,580FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,011Average$1,492FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,039Average$1,223FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,095Average$1,663FlexibilityNo cancel feeOn-time78%
Cathay PacificCheapest$1,153Average$1,339FlexibilityNo cancel feeOn-time72%

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