$481 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 4/2. 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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Everything you should know

Cheapest round-trip
$983
Overall average: $1,108
Qantas Airways
Tue 2/10Mon 4/20
SEA - MEL • 2 stops
Cheapest one-way
$481
Typical prices: $584-$882
Philippine Airlines
Thu 4/2
SEA - MEL • 1 stop
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 16% compared to booking last minute.
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Booking Insights
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 10 - Mon, Apr 20
Qantas Airways Logo
5:53 pm - 3:35 pm
SEA
-
MEL
26h 42m2 stops
Qantas Airways Logo
9:45 am - 10:49 pm
MEL
-
SEA
30h 04m1 stop
$983Qantas Airways
Tue, Feb 10 - Mon, Apr 20
Qantas Airways Logo
5:53 pm - 3:35 pm
SEA
-
MEL
26h 42m2 stops
Qantas Airways Logo
9:45 am - 10:49 pm
MEL
-
SEA
30h 04m1 stop
$984Qantas Airways
Sat, Feb 7 - Sun, Feb 15
Multiple Airlines Logo
12:59 pm - 9:30 am
SEA
-
MEL
25h 31m1 stop
Multiple Airlines Logo
12:00 pm - 1:59 pm
MEL
-
SEA
20h 59m1 stop
$988Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
American Airlines Logo
8:35 am - 5:00 am
SEA
-
MEL
25h 25m1 stop
American Airlines Logo
4:05 pm - 7:18 pm
MEL
-
SEA
22h 13m1 stop
$989American Airlines
Sat, Feb 21 - Sat, Mar 7
Air Canada Logo
8:00 pm - 2:35 pm
SEA
-
MEL
23h 35m2 stops
Air Canada Logo
7:10 am - 9:31 am
MEL
-
SEA
21h 21m2 stops
$993Air Canada
Thu, Jan 29 - Tue, Mar 24
Multiple Airlines Logo
8:00 pm - 5:15 pm
SEA
-
MEL
26h 15m2 stops
Multiple Airlines Logo
8:50 pm - 9:31 am
MEL
-
SEA
30h 41m2 stops
$996Multiple Airlines
Thu, Feb 5 - Thu, Feb 19
Air Canada Logo
3:40 pm - 2:15 pm
SEA
-
MEL
27h 35m2 stops
Air Canada Logo
7:45 am - 7:16 pm
MEL
-
SEA
30h 31m2 stops
$1,002Air Canada
Thu, Feb 5 - Thu, Feb 19
United Airlines Logo
5:10 pm - 10:00 am
SEA
-
MEL
21h 50m1 stop
United Airlines Logo
1:00 pm - 6:26 pm
MEL
-
SEA
24h 26m1 stop
$1,005United Airlines
Tue, Feb 10 - Mon, Apr 20
Qantas Airways Logo
3:45 pm - 10:05 am
SEA
-
MEL
23h 20m2 stops
Qantas Airways Logo
9:45 am - 10:49 pm
MEL
-
SEA
30h 04m1 stop
$1,010Qantas Airways
Tue, Feb 10 - Sun, Mar 1
United Airlines Logo
5:12 pm - 9:30 am
SEA
-
MEL
21h 18m1 stop
United Airlines Logo
11:30 am - 9:01 pm
MEL
-
SEA
28h 31m2 stops
$1,011United Airlines
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 $1,699 and $1,618 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 5 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Cheapest flight$481
Flight from Seattle to Melbourne Airport (Tullamarine)

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 $481 for a one-way ticket and $983 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 5 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 11477 reviews
8.1Boarding
7.8Comfort
7.1Food
7.0Entertainment
8.5Crew
Airline reviews

The plane was delayed which was annoying. No seat back screens is a bummer. Staff if great

8.0 ExcellentAnonymous, Dec 2025
SEA - SFO
Read more Alaska Airlines reviews

The plane was delayed which was annoying. No seat back screens is a bummer. Staff if great

I got my seat changed last minute so a parent coumd sit with their child wich i found out was a teenager

I wish you would have just canceled the Saturday flight from sea to rdd on Dec 13. the diversion cost me more time and money than if I had just rebooked to Sacramento. It was a huge headache and cost.

There was no food or entertainment so quit asking about that! Everything else was fine.

I wasn’t assigned a seat until last minute even though I checked in 24 hours before the flight and was told I might not be able to get on the flight! The leg room and seat room in the flight was abysmal. The service both at boarding and on the flight was very mediocre and not particularly friendly.

Late boarding, older plane. Great flight, no issues. Very cold inside the plane.

The plane was old so the seats were very worn out. The seats were hard, uncomfortable, and caused me actual pain. The lights were too bright. The flight itself was fine.

1. Denial of Basic Needs (SEA): Upon arrival in Seattle, the wheelchair attendant refused my urgent request to use the restroom, insisting on scanning documents first. She eventually took me to a restroom but then abandoned me and my autistic son at an unstaffed, deserted gate for over four hours. When I called the accommodation line for help, I was told to "get someone's attention," which was impossible. My son, traumatized by the prospect of me yelling for help, was forced to wander the terminal to find assistance. 2. Revocation of Accommodations & Threats: At the gate, an agent stated I had no accommodations on file, despite my previous leg having them. When I showed the app (where my bulkhead seat was erased and replaced with Row 14), he denied the evidence. When I attempted to advocate for my immobilized leg, he threatened to "yank me from the flight" if I said one more word. He coerced me into agreeing that I was "asking for accommodations for the first time" before he would allow assistance, effectively forcing me to falsify the situation under duress. I complied only out of fear of being stranded in a strange city. 3. On-Board Negligence and Injury: Because my bulkhead seat was revoked, I was forced into Row 14. With my leg immobilized and unable to bend, it extended into the aisle. During boarding and the flight: 16 different passengers tripped over my injured leg. 6 rolled luggage bags were pulled over my injured leg. The Flight Attendant (FA) was one of the people who tripped and drove luggage over me. I reported the issue to the FA after 10 trips and 3 luggage impacts. He ignored me. He only addressed me later to ask me to move my immobilized leg for beverage service. I informed him again: "16 people have tripped, 6 luggage runovers, I cannot bend it." He provided no medical aid and no incident report. 4. Resolution and Trauma: Eventually, a different employee noticed my distress and my original paper boarding pass showing the correct bulkhead assignment. He asked me to move up. I broke down in tears, terrified that moving would cause the gate agent to remove me from the plane as threatened. We were eventually moved to the bulkhead, but the damage was done. My autistic son was traumatized by watching his mother be trampled and threatened. 5. Post-Flight: I called to report these injuries, but was disconnected after a 45-minute hold. I require a formal record of this injury and these violations.

Larger seats with a bit more room would be good! Thanks for all your hard work. I think we are all feeling a bit down these days economically and your positive attitudes, both from SJC to Seattle and from Seattle to Bozeman makes more of a difference than you can see! Thank you and Merry Christmas! I hope all your financial needs are met and that very good things come your way.

We flew economy, it was what I expected. The seats are too upright for me

The food was not as good as Air New Zealand. The veg pasta was pass-able but the veg cibotta sandwich was dry, hard and not up to par. The coach staff were attentive and accommodating.

Flight was delayed by 2 hours. Got lucky that i had a long connection, else would have certainly missed my connecting flight. Food is just okay, specially the breakfast is worse . Asked for water 30 mins before landing, the response is that we are landing so everything is packed . I guess traveling in economy that’s what we get. Probably business class passengers would get a different answer. Only good thing is that wifi service is available from auckland to lax for most part Next time will try united or American and then compare.

I was trying to get confirmation on if my luggage was going to be moved to the earlier flight (I requested standby to get home earlier) and was unable to get help from those working at the counter. The request to be moved to an earlier flight was handled smoothly through the app and appreciate the ease of the request.

They are my favourite airline in the world by a million miles.

Do the bumpy weather the whole trip they were very few times when the seatbelt sign wasn't on

Kayak did not propagate my United miles account and I had to manually get credit.

Like: Aircraft was better than others I've flown in. Crew was great, food was very good. Air New Zealand is now my favorite airline. On our long flight from AKL to YVR there was enough room for those of us in Economy to stretch a bit. My sister is disabled and they took very good care of her and me. Best entertainment offering of all the other airlines. Not so much; Flight from AKL to YRV was delayed BUT they recovered really well so no complaints here. Pretty petty point to complain about. Only negative I have. I will recommend to friends.

Nice friendly staff and crew. Love the 787 flight. Get meals and lots of drinks!

Great entertainment options on the screen. uSB A and C chargers. Free WiFi! Crew were excellent.

Service was excellent and they’re very helpful and nice

Flight was canceled. I was not alerted. It was only kayak that alerted me

Flight was 2.5 hours late leaving. We spent 50 minutes of that sitting on the plane with no explanation. They did reduce the time in the air so we arrived a little less late which was something. The cheese and crackers were okay but the wine was terrible.

Couldn't access entertainment on app as said in an email

Excellent as always, I won't fly to Australia, and back to the US on any other airline. The flight crew is always top notch, and have a way to make one feel extra special. Thank you for your service, I would rate Qantas Airways a 10+.

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 flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

Nothing specific. Cabin temperature was too high for some reason.

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

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

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

Information on your arrival and departure airports