HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Melbourne

$429+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Melbourne with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Melbourne are usually found in February or March, booked 69 days in advance, depart on a Monday or Wednesday and return on a Tuesday

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 November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,094
(American Airlines)

One-way from

$429
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,618
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. 13% potential increase in price ($203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 18, 2025.

This United Airlines deal was found by Cheapflights users on 11/18. 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.
Tue 12/305:54 pmSEA - MEL
1 stop21h 06mUnited Airlines
Mon 2/21:00 pmMEL - SEA
1 stop27h 12mUnited Airlines
Deal found 11/18$1,095
This Kiwi.com deal was found by Cheapflights users on 11/15. 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.
Sun 11/169:30 pmSEA - MEL
1 stop31h 35mMultiple Airlines
Fri 1/304:15 pmMEL - SEA
2 stops25h 31mMultiple Airlines
Deal found 11/15$1,102
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Sun 11/169:30 pmSEA - MEL
1 stop31h 35mMultiple Airlines
Sat 3/141:25 amMEL - SEA
2 stops32h 40mMultiple Airlines
Deal found 11/16$1,111
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Sun 11/169:30 pmSEA - MEL
1 stop31h 35mMultiple Airlines
Thu 3/121:25 amMEL - SEA
2 stops32h 40mMultiple Airlines
Deal found 11/16$1,112
This Orbitz deal was found by Cheapflights users on 11/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/169:30 pmSEA - MEL
1 stop40h 05mMultiple Airlines
Mon 3/1612:00 pmMEL - SEA
1 stop24h 49mMultiple Airlines
Deal found 11/16$1,113
This Trip.com deal was found by Cheapflights users on 11/17. 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.
Wed 11/199:30 pmSEA - MEL
1 stop35h 40mMultiple Airlines
Wed 12/31:00 pmMEL - SEA
1 stop21h 29mMultiple Airlines
Deal found 11/17$1,114
This Kiwi.com deal was found by Cheapflights users on 11/15. 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.
Sun 11/169:30 pmSEA - MEL
1 stop31h 35mMultiple Airlines
Sat 1/241:25 amMEL - SEA
2 stops32h 40mMultiple Airlines
Deal found 11/15$1,122
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Sun 11/169:30 pmSEA - MEL
1 stop31h 35mMultiple Airlines
Wed 3/188:50 pmMEL - SEA
2 stops43h 57mMultiple Airlines
Deal found 11/16$1,127
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Sun 11/169:30 pmSEA - MEL
2 stops38h 55mMultiple Airlines
Tue 3/1712:00 pmMEL - SEA
1 stop19h 59mMultiple Airlines
Deal found 11/16$1,147

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 November 18, 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

Thu 2/12

7:29 pm-10:00 am

1 stop19h 31m

Melbourne

Thu 5/7

10:55 am-6:33 pm

1 stop24h 38m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 12/30

1:35 pm-10:00 am

1 stop25h 25m

Melbourne

Mon 2/2

11:30 am-11:41 am

1 stop19h 11m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 1/29

9:00 am-9:30 am

1 stop29h 30m

Melbourne

Tue 3/24

10:30 am-1:36 pm

1 stop21h 06m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 1/30

9:00 am-9:30 am

1 stop29h 30m

Melbourne

Thu 2/26

11:30 am-9:01 pm

2 stops28h 31m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 3/2

12:15 pm-9:30 am

1 stop26h 15m

Melbourne

Thu 3/12

12:00 pm-8:58 pm

1 stop26h 58m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 2/10

9:25 am-10:00 am

1 stop29h 35m

Melbourne

Mon 4/20

10:55 am-6:33 pm

1 stop24h 38m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 2/17

7:29 pm-10:00 am

1 stop19h 31m

Melbourne

Sun 5/3

10:55 am-2:18 pm

1 stop20h 23m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 3/10

5:20 pm-9:00 am

1 stop21h 40m

Melbourne

Tue 3/24

12:00 pm-6:50 pm

1 stop24h 50m

$1,095

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 2/4

3:45 pm-12:25 pm

2 stops25h 40m

$429

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 11/23

9:30 pm-8:35 am

1 stop40h 05m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 18 results
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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Melbourne Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 14, 2025.

Booking 67 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, May is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $809). Flying from Seattle to Melbourne Airport in April is currently the most expensive (average of $1,211). 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.

What is the cheapest time of day to fly from SEA to MEL?

Find hourly flight availability from Seattle to Melbourne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 13% on flights from Seattle to Melbourne Airport by exploring options for tickets in the evening.

What is the cheapest day to fly from Seattle to Melbourne Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Melbourne. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Melbourne Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 18, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Air New Zealand, and Qantas 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
11,315 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,315 reviews
Alaska Airlines
8.0
Very good
11,315 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Air New Zealand
8.0
Very good
529 reviews
Alaska Airlines
8.0
Very good
11,315 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Qantas Airways
7.5
Good
941 reviews
Alaska Airlines
8.0
Very good
11,315 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,020 reviews
Alaska Airlines
8.0
Very good
11,315 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Air Canada
7.1
Good
10,462 reviews
Alaska Airlines
8.0
Very good
11,315 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 31m. Fly via United Airlines to get the fastest option. The distance from Seattle to Melbourne Airport is about 8180 mi.

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

    Flying on Air Canada is currently your cheapest option to Melbourne Airport, with prices starting at $855. Additional round-trip tickets that might be worth considering are offered by Qantas Airways and United Airlines, with the lowest prices starting at $1,042 and $1,106, respectively. Air Canada is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • 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, May is the cheapest month in which you can book a flight from Seattle to Melbourne Airport (average of $809). Flying from Seattle to Melbourne Airport in April is currently the most expensive (average of $1,211). 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
Geelong
Tullamarine
Doncaster

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Seattle to Avalon flights
Portland to Avalon flights
Pasco 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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$855Average$1,046FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$1,042Average$1,194FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,106Average$1,545FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$1,516Average$1,990FlexibilityNo cancel feeOn-time78%
Alaska AirlinesCheapest$1,618Average$1,632FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.