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Low Price Flights from Seattle to Melbourne

Find Cheapest Airlines Flying from Seattle to Melbourne

Choose from 2 carriers that fly from Seattle to Melbourne, including Delta Air Lines, United Airlines, Enjoy the cheapest tickets on this route with Singapore Airlines.
Delta Air Lines logo Delta Air Lines
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from Seattle to Melbourne according to previous 12 months data from Trip.com.

Explore the cheapest flights from Seattle to Melbourne in the next three months. Based on Trip.com's data from the latest 7 days, one-way fares start at AU$ 652, and round-trip tickets start at AU$ 1,490.

      • SEA 12:34
        25h 56m
        1 stop
        MEL 07:30
        Seattle - Melbourne | Mon, May 18 | United Airlines
        MEL 10:55
        20h 35m
        1 stop
        SEA 14:30
        Melbourne - Seattle | Mon, May 25 | United Airlines
        AU$ 1,490 AU$ 2,408
        38% off
        38% off
        AU$ 2,408 AU$ 1,490
      • SEA 17:28
        20h 17m
        1 stop
        MEL 06:45
        Seattle - Melbourne | Mon, May 18 | Qantas Airways
        MEL 09:45
        21h 12m
        1 stop
        SEA 13:57
        Melbourne - Seattle | Mon, May 25 | Qantas Airways
        AU$ 1,503 AU$ 2,408
        38% off
        38% off
        AU$ 2,408 AU$ 1,503
      • SEA 17:20
        21h 55m
        1 stop
        MEL 08:15
        Seattle - Melbourne | Fri, May 22 | United Airlines
        MEL 10:55
        18h 39m
        1 stop
        SEA 12:34
        Melbourne - Seattle | Tue, May 26 | United Airlines
        AU$ 1,507 AU$ 2,408
        37% off
        37% off
        AU$ 2,408 AU$ 1,507
      • SEA 07:00
        30h 45m
        1 stop
        MEL 06:45
        Seattle - Melbourne | Fri, May 22 | Qantas Airways
        MEL 09:45
        21h 12m
        1 stop
        SEA 13:57
        Melbourne - Seattle | Tue, May 26 | Qantas Airways
        AU$ 1,507
        37% off
        AU$ 2,408 AU$ 1,507
      • SEA 14:50
        24h
        1 stop
        MEL 07:50
        Seattle - Melbourne | Mon, May 18 | Delta Air Lines
        MEL 09:45
        21h 12m
        1 stop
        SEA 13:57
        Melbourne - Seattle | Mon, May 25 | American Airlines
        AU$ 1,604
        33% off
        AU$ 2,408 AU$ 1,604
      • SEA 17:55
        20h 55m
        1 stop
        MEL 07:50
        Seattle - Melbourne | Fri, May 22 | Delta Air Lines
        MEL 09:45
        21h 12m
        1 stop
        SEA 13:57
        Melbourne - Seattle | Tue, May 26 | American Airlines
        AU$ 1,612
        33% off
        AU$ 2,408 AU$ 1,612
      • SEA 08:45
        29h 45m
        1 stop
        MEL 07:30
        Seattle - Melbourne | Fri, May 8 | United Airlines
        MEL 09:30
        27h 18m
        1 stop
        SEA 19:48
        Melbourne - Seattle | Wed, May 13 | United Airlines
        AU$ 1,628
        32% off
        AU$ 2,408 AU$ 1,628
      • SEA 12:40
        26h 10m
        1 stop
        MEL 07:50
        Seattle - Melbourne | Fri, May 8 | Delta Air Lines
        MEL 10:55
        29h 34m
        1 stop
        SEA 23:29
        Melbourne - Seattle | Wed, May 13 | United Airlines
        AU$ 1,632
        32% off
        AU$ 2,408 AU$ 1,632
      • SEA 17:25
        21h 50m
        1 stop
        MEL 08:15
        Seattle - Melbourne | Thu, May 7 | United Airlines
        MEL 10:00
        22h 5m
        1 stop
        SEA 15:05
        Melbourne - Seattle | Wed, May 13 | Delta Air Lines
        AU$ 1,816
        25% off
        AU$ 2,408 AU$ 1,816
      • SEA 17:20
        21h 55m
        1 stop
        MEL 08:15
        Seattle - Melbourne | Mon, Jun 1 | United Airlines
        MEL 10:55
        22h 29m
        1 stop
        SEA 16:24
        Melbourne - Seattle | Sat, Jun 6 | United Airlines
        AU$ 1,830
        24% off
        AU$ 2,408 AU$ 1,830
      • SEA 13:00
        17h 25m
        1 stop
        MEL Invalid Date
        Seattle - Melbourne | Thu, Apr 23 | Normal Airline
        MEL 15:00
        6h
        Direct
        SEA 16:00
        Melbourne - Seattle | Sat, Apr 25 | Normal Airline
        Find more flights
        Find more flights
      • SEA 10:15
        27h
        1 stop
        MEL 06:15
        Seattle - Melbourne | Mon, May 4 | Singapore Airlines
        AU$ 652 AU$ 1,216
        46% off
        46% off
        AU$ 1,216 AU$ 652
      • SEA 11:39
        27h 36m
        1 stop
        MEL 08:15
        Seattle - Melbourne | Mon, May 4 | United Airlines
        AU$ 798 AU$ 1,216
        34% off
        34% off
        AU$ 1,216 AU$ 798
      • SEA 07:40
        30h 5m
        1 stop
        MEL 06:45
        Seattle - Melbourne | Mon, May 4 | Qantas Airways
        AU$ 809 AU$ 1,216
        33% off
        33% off
        AU$ 1,216 AU$ 809
      • SEA 19:59
        42h 51m
        1 stop
        MEL 07:50
        Seattle - Melbourne | Mon, May 4 | Delta Air Lines
        AU$ 815
        33% off
        AU$ 1,216 AU$ 815
      • SEA 08:45
        29h 45m
        1 stop
        MEL 07:30
        Seattle - Melbourne | Tue, Apr 28 | United Airlines
        AU$ 841
        31% off
        AU$ 1,216 AU$ 841
      • SEA 10:10
        28h 40m
        1 stop
        MEL 07:50
        Seattle - Melbourne | Tue, Apr 28 | Delta Air Lines
        AU$ 854
        30% off
        AU$ 1,216 AU$ 854
      • SEA 20:07
        41h 38m
        1 stop
        MEL 06:45
        Seattle - Melbourne | Tue, Apr 28 | Qantas Airways
        AU$ 855
        30% off
        AU$ 1,216 AU$ 855
      • SEA 19:59
        42h 51m
        1 stop
        MEL 07:50
        Seattle - Melbourne | Mon, Apr 27 | Delta Air Lines
        AU$ 857
        30% off
        AU$ 1,216 AU$ 857
      • SEA 10:29
        28h 46m
        1 stop
        MEL 08:15
        Seattle - Melbourne | Wed, Jun 17 | United Airlines
        AU$ 916
        25% off
        AU$ 1,216 AU$ 916
      • SEA 10:29
        28h 46m
        1 stop
        MEL 08:15
        Seattle - Melbourne | Sat, Jun 13 | United Airlines
        AU$ 924
        24% off
        AU$ 1,216 AU$ 924
      • SEA 13:00
        17h 25m
        1 stop
        MEL Invalid Date
        Seattle - Melbourne | Thu, Apr 23 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Seattle to Melbourne are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Seattle to Melbourne Flight Details

The distance between Seattle and Melbourne is approximately 13,174.85km. Based on Trip.com's data travel demand peaks in January. The off-season for travel is November.

Cheapest one-way flight priceAU$ 652
Cheapest return ticket priceAU$ 1,490
Off-season for travelNovember
Peak season for travelJanuary
Flight distance13,174.85km
Popular airlineDelta Air Lines
Flight statistics for the Seattle–Melbourne route are based on aggregated booking data from Trip.com over the past 12 months.

Flight FAQs

  • Which airlines offer the cheapest flights from Seattle (SEA) to Melbourne (MEL)?

    Based on Trip.com data, Singapore Airlines offers one-way fares as low as AU$ 652 on Cheapest nonstop routes (e.g. SEA to MEL on Mon, May 4), while United Airlines offers Cheapest nonstop round-trips from AU$ 1,490 departing on Mon, May 18 and returning on Mon, May 25.
  • At the moment, you can catch a direct flight from Seattle to Melbourne with the following airlines, including: Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Melbourne is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Seattle to Melbourne, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, May 4, with one-way flights priced at just AU$ 652.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Singapore Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Melbourne travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Melbourne is November, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Seattle to Melbourne on April 30, 2026 with Singapore Airlines, with prices starting at AU$ 729.
  • You can land at any one of the following hubs in Melbourne, with Seattle-Tacoma International Airport to Melbourne Airport (SEA-MEL) is by far the most common option on this route: Avalon Airport (AVV) Moorabbin (Harry Hawker) Airport (MBW) Essendon Airport (MEB) Melbourne Airport (MEL).
  • The time difference between Melbourne and Seattle is 18h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Seattle toMelbourne

Which airlines offer the cheapest nonstop flights from Seattle to Melbourne?

Data is based on the average price of all nonstop flights from Seattle to Melbourne on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Alaska Airlines offers the cheapest nonstop flights from Seattle to Melbourne, with an average price of AU$ 873.

AU$ 642
AU$ 873
AU$ 1,105
AU$ 1,336
AU$ 1,567
Alaska Airlines
AU$ 873
Alaska Airlines
Qantas Airways
AU$ 984
Qantas Airways
Hawaiian Airlines
AU$ 1,007
Hawaiian Airlines
Delta Air Lines
AU$ 1,024
Delta Air Lines
United Airlines
AU$ 1,111
United Airlines
Cathay Pacific
AU$ 1,567
Cathay Pacific

More Cheap Flights & Deals on Trip.com

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.