$516 Find Cheap Flights from Seattle to Melbourne

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Melbourne departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Melbourne

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Melbourne, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Melbourne, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Melbourne (SEA-MEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Melbourne that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Melbourne

Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
9:30 pm - 8:35 amSEA-MEL
40h 05m1 stop
Multiple Airlines Logo
7:10 am - 9:31 amMEL-SEA
21h 21m2 stops
$996Multiple Airlines
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Fri, Mar 20 - Sat, Mar 28
Multiple Airlines Logo
8:00 pm - 12:25 pmSEA-MEL
22h 25m2 stops
Multiple Airlines Logo
7:50 pm - 9:33 amMEL-SEA
31h 43m2 stops
$997Multiple Airlines
Find Deal
Fri, Apr 24 - Mon, May 4
Air Canada Logo
3:40 pm - 11:20 amSEA-MEL
26h 40m2 stops
Air Canada Logo
6:00 am - 2:16 pmMEL-SEA
25h 16m2 stops
$1,004Air Canada
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Thu, Mar 12 - Mon, Mar 16
Air Canada Logo
8:00 pm - 2:15 pmSEA-MEL
24h 15m2 stops
Air Canada Logo
6:40 am - 9:31 amMEL-SEA
20h 51m2 stops
$1,042Air Canada
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Tue, Dec 2 - Tue, Dec 9
Qantas Airways Logo
2:59 pm - 9:30 amSEA-MEL
23h 31m1 stop
Qantas Airways Logo
6:45 am - 6:20 pmMEL-SEA
30h 35m2 stops
$1,043Qantas Airways
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Tue, Mar 10 - Tue, Mar 24
Qantas Airways Logo
3:35 pm - 9:30 amSEA-MEL
23h 55m1 stop
Qantas Airways Logo
12:00 pm - 2:16 pmMEL-SEA
20h 16m1 stop
$1,045Qantas Airways
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Fri, Dec 5 - Thu, Dec 18
American Airlines Logo
8:30 am - 5:00 amSEA-MEL
25h 30m1 stop
American Airlines Logo
4:05 pm - 7:12 pmMEL-SEA
22h 07m1 stop
$1,058American Airlines
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Wed, Feb 11 - Sun, Feb 22
American Airlines Logo
10:45 am - 5:00 amSEA-MEL
23h 15m1 stop
American Airlines Logo
12:00 pm - 6:54 pmMEL-SEA
25h 54m1 stop
$1,071American Airlines
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Fri, Dec 5 - Thu, Dec 18
United Airlines Logo
5:11 pm - 10:00 amSEA-MEL
21h 49m1 stop
United Airlines Logo
11:30 am - 9:17 pmMEL-SEA
28h 47m2 stops
$1,082United Airlines
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Mon, Mar 2 - Thu, Mar 12
United Airlines Logo
12:15 pm - 9:30 amSEA-MEL
26h 15m1 stop
United Airlines Logo
12:00 pm - 4:14 pmMEL-SEA
22h 14m1 stop
$1,095United Airlines
Find Deal

Everything you should know

Top airlines
Air Canada
Cheapest • from $1,004 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 10% compared to booking last minute.
Insights
Insights
Insights
Insights
Cheapest round-trip
$996
Overall average: $1,108
Multiple Airlines
Tue 2/24Tue 3/3
SEA - MEL • 1 stop
Cheapest one-way
$508
Typical prices: $840-$1,329
Multiple Airlines
Mon 12/8
SEA - MEL • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Melbourne!
Booking Insights

KAYAK's insights & trends for Seattle to Melbourne flights

Get data-powered insights and trends into flights from Seattle to Melbourne to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Melbourne?

The average price of all round-trip flights from Seattle to Melbourne clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Melbourne on a Monday and more expensive on a Sunday. On your return trip to Seattle, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

What is the cheapest month to fly from Seattle to Melbourne?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Melbourne, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Melbourne is February, where tickets cost $1,108 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $1,730 and $1,599 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Melbourne, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Melbourne, you should book around 3 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Cheapest flight$508
Flight from Seattle to Melbourne

When to book flights from Seattle to Melbourne

Are your dates flexible? Find out the best times to travel from Seattle to Melbourne based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Melbourne

  • What is the cheapest flight from Seattle to Melbourne?

    In the last 3 days, the lowest price for a flight from Seattle to Melbourne was $508 for a one-way ticket and $996 for a round-trip.

  • Do I need a passport to fly between Seattle and Melbourne?

    Yes, you’ll need a passport to travel to Melbourne from Seattle.

  • Which airports will I be using when flying from Seattle to Melbourne?

    Seattle is served by only 1 airport and there are 2 airports in Melbourne. You will leave Seattle from Seattle/Tacoma Intl and you will be arriving in Melbourne at one of these airports: Melbourne Avalon or Melbourne.

  • Which aircraft models fly most regularly from Seattle to Melbourne?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Melbourne?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Melbourne, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Melbourne from Seattle?

    San Francisco is the most popular layover city among KAYAK users traveling from Seattle to Melbourne.

  • How does KAYAK find such low prices on flights from Seattle to Melbourne?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Melbourne.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Melbourne?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Melbourne from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Melbourne?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Melbourne with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Melbourne?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Melbourne from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Seattle to Melbourne

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Melbourne. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Melbourne? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11232 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
7.1Food
Airline reviews

Its bumpy but I can say its safe flight ,Thanks Alaska airline for bringing me in my destination😊.

8.0 ExcellentMary Grace, Oct 2025SEA - BNA
Read more Alaska Airlines reviews

Its bumpy but I can say its safe flight ,Thanks Alaska airline for bringing me in my destination😊.

Almost 3 hr delay in Settle with very little information available to passengers. They boarded the plane and we waited for a long time inside the plane as well.

This was our first time flying with Alaska. It was a seamless experience, with comfortable seats and leg room. Staff were friendly and helpful.

Flight on time. Crew good. Seating Bad. Have to pay extra on a not cheap flight to avoid being next to toilet.

The crew was great! Passengers were nice. Just an fyi that I heard several of them complain that the snack was not gluten free. Many people got handed the snack and then promptly gave it back to the flight attendant. Might be good to look into another option as such a high percentage of people in CO and WA are gf. Cheers!

Food and entertainment not applicable - standard drinks and cinnamon cookies; crew did not do a song and dance for us so no entertainment. I like the slightly better leg room than American Airlines - at least it felt that way. Flight crew and atmosphere seemed more welcoming than American, too.

It was fine, mostly I was just happy to be on my last leg home. No in flight entertainment but that's forgivable since it was only a 2 hour flight.

Was delayed in Newark 24 hours due to mechanical problems. The staff was very helpful in trying to make the best of a trying situation. In SeaTac, they changed gates and times. Usually have no problems from SeaTac.

Flight was cancelled, then rebooked on a flight that I was unable to get through since they had closed the gate.

Terrible. We were bumped off our flight to another and weren't sent notice until we were on our prior flight. We got home four hours later and the airline couldn't have cared less.

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

A few more inches of legroom is all i ask

One of the best Qantas business flights I've had. Quality product

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

Was bumped to a later flight because of inefficiency on part of the airline.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

For goodness sake, board from the back of the plane to the front and assign overhead space. It would fix everything. Seriously.

Everything you need to know for your flight from Seattle to Melbourne

Information on your arrival and departure airports

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