$415 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 9/2. 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

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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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, Sep 16 - Thu, Oct 2
Air Canada Logo
2:55 pm - 11:05 amSEA-MEL
27h 10m2 stops
Air Canada Logo
6:00 am - 2:16 pmMEL-SEA
25h 16m2 stops
$813Air Canada
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Wed, Aug 27 - Wed, Sep 10
Philippine Airlines Logo
11:35 pm - 5:00 amSEA-MEL
36h 25m1 stop
Philippine Airlines Logo
8:00 am - 7:15 pmMEL-SEA
28h 15m1 stop
$908Philippine Airlines
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Wed, Aug 27 - Wed, Sep 10
Qantas Airways Logo
5:59 pm - 10:35 amSEA-MEL
23h 36m2 stops
Qantas Airways Logo
6:15 am - 2:48 pmMEL-SEA
25h 33m2 stops
$997Qantas Airways
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Tue, Oct 14 - Sun, Oct 26
 Logo
6:50 pm - 4:05 pmSEA-AVV
27h 15m2 stops
 Logo
6:00 am - 12:54 pmAVV-SEA
24h 54m2 stops
$1,001
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Mon, Oct 6 - Mon, Oct 20
 Logo
4:30 pm - 2:10 pmSEA-AVV
27h 40m2 stops
 Logo
6:00 am - 10:55 amAVV-SEA
22h 55m2 stops
$1,002
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Mon, Oct 6 - Mon, Oct 20
Qantas Airways Logo
4:30 pm - 11:35 amSEA-MEL
25h 05m2 stops
Qantas Airways Logo
6:00 am - 10:55 amMEL-SEA
22h 55m2 stops
$1,016Qantas Airways
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Sun, Jul 27 - Sun, Aug 3
Air New Zealand Logo
6:45 am - 8:35 pmSEA-MEL
44h 50m2 stops
Air New Zealand Logo
8:35 am - 10:16 pmMEL-SEA
30h 41m2 stops
$1,199Air New Zealand
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Sun, Jul 27 - Sun, Aug 3
Air New Zealand Logo
6:45 am - 8:35 pmSEA-MEL
44h 50m2 stops
Air New Zealand Logo
12:05 pm - 10:16 pmMEL-SEA
27h 11m2 stops
$1,240Air New Zealand
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Mon, Nov 3 - Tue, Nov 11
United Airlines Logo
5:20 pm - 10:00 amSEA-MEL
21h 40m1 stop
United Airlines Logo
1:00 pm - 12:18 pmMEL-SEA
18h 18m1 stop
$1,254United Airlines
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Tue, Sep 16 - Thu, Oct 2
United Airlines Logo
1:05 pm - 8:15 amSEA-MEL
26h 10m1 stop
United Airlines Logo
10:55 am - 4:24 pmMEL-SEA
22h 29m1 stop
$1,304United Airlines
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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 June, where tickets cost $1,231 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $1,906 and $1,504 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. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Cheapest flight$415
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 $415 for a one-way ticket and $813 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?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Seattle and Melbourne, with Star Alliance 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.

Top 3 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.
7.5
Qantas AirwaysOverall score based on 854 reviews
7.7Boarding
7.4Comfort
7.1Entertainment
6.9Food
8.2Crew
Airline reviews

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

4.0 OkayAnonymous, May 2025SYD - ADL
Read more Qantas Airways reviews

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.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Loved the staff. The economy seats could have been bigger.

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Easy boarding and comfortable seating were plusses. Enjoyed the experience and good service from the captain and crew. Many thanks...!

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

Great overall. Quick boarding, attentive staff - great experience in premium class.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

I think overall both Air Canada and Air New Zealand did a good job the their flights. It is nice to have movies, music, podcasts etc to watch for the long flights. Just wish the seats were wider and had a foot rest to change my leg positions during the trips.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

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

Information on your arrival and departure airports

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