Cheap Flights from Seattle / Tacoma International to Adelaide

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      Travellers and cabin class, 1 Adult, Economy

      Compare Seattle / Tacoma International to Adelaide flight deals

      Find the cheapest month or even day of the year to fly to Adelaide

      Book the best Adelaide fare with no extra fees

      Flight deals from Seattle / Tacoma International to Adelaide

      Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International Airport to Adelaide Airport? If you want to travel next month, return fares start from Rs441,734. Find the lowest prices on one-way and return tickets right here.

      Find the cheapest month to fly from Seattle / Tacoma International to Adelaide

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Adelaide flights are currently cheapest in October.

      Seattle / Tacoma International to Adelaide: Alternative routes

      Compare routes from Seattle / Tacoma International to Adelaide below. You may find an airport to fly into that's cheaper, faster, or easier than Adelaide.

      Seattle to Adelaide: Flight information

      The things to know before you go.
      Cheapest flight foundRs185,492
      Cheapest month to flyOctober

      Finding cheap flights from Seattle / Tacoma International to Adelaide: Frequently asked questions

      The best price we found for a return flight from Seattle / Tacoma International to Adelaide is Rs342,910. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Seattle / Tacoma International to Adelaide. But we found flights with one or more stops from Rs342,910.
      As of August 2026, there are no flights flying from Seattle / Tacoma International to Adelaide.
      The cheapest month to fly from Seattle / Tacoma International to Adelaide is usually February.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Adelaide Airport on Wednesday, 17 February 2027.
      No airlines currently offer direct flights between Seattle / Tacoma International Airport and Adelaide Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Adelaide but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Adelaide is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Cathay Pacific offers the cheapest flight tickets to Adelaide.

      Flying from Seattle / Tacoma International Airport (SEA) to Adelaide Airport (ADL): what you need to know

      • The timezone in Adelaide is UTC+10:30, which is 18 hours 30 minutes ahead of Seattle.

      • To ensure you catch your SEA to ADL flight, leave enough time to check in and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the standard rule.

      • Be prepared for longer queues in popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures will give you ample time for security and boarding.

      • If you'd like to split up your journey, just uncheck 'Direct flights only' when searching for your ticket from Seattle / Tacoma International Airport to Adelaide Airport. Here are the most popular stopovers between SEA and ADL:

        • Dubai Airport

        • Singapore Changi Airport

        • Hamad International Airport

      How to find the cheapest flights from Seattle / Tacoma International Airport (SEA) to Adelaide Airport (ADL)

      • Rs186,615 is currently the best price for a one-way Seattle / Tacoma International Airport to Adelaide Airport flight. A return flight starts from Rs344,987. These fares may change based on demand.

      • It's usually smart to book ahead of time if you want to get cheap tickets from SEA to ADL. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.

      • If you're willing to be flexible with your trip dates, use the 'Whole month' search function. It'll find the cheapest price in every month when searching for your flight from Seattle / Tacoma International Airport to Adelaide Airport.

      • Getting your hands on cheap flights from SEA to ADL is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know as soon as a lower fare pops up.

      • Tailor your trip using filters. Select your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Seattle / Tacoma International Airport to Adelaide Airport.

      Handy information about Seattle / Tacoma International Airport (SEA)

      • 80% of flights departing from Seattle / Tacoma International Airport land at their destination according to schedule. Given its solid on-time performance, delays are unlikely when jetting out of SEA.

      • Seattle / Tacoma International Airport is about 23 kilometres from central Seattle. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 25 minutes or so to arrive, depending on the traffic.

      • Catching public transport? Expect a journey time of around 35 minutes.

      • Taking an early flight from Seattle / Tacoma International Airport to Adelaide Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels near SEA:

      Arriving at Adelaide Airport (ADL)

      • If you have a late Seattle / Tacoma International Airport to Adelaide Airport flight, nothing tops the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and relaxing not long after at one of these accommodation options near ADL:

      • Hit the road running by picking up a Adelaide Airport rental car. Grab a set of wheels from Bargain Car Rentals, simba car rental or East Coast and explore beyond Adelaide's usual tourist stops.

      • To lock in the lowest price, reserve your vehicle from Adelaide Airport around one week before you travel.

      Getting from Adelaide Airport (ADL) to central Adelaide

      • From Adelaide Airport, Adelaide is approximately 6 kilometres away. It takes around 20 minutes to drive to the centre.

      • Travelling to the centre on public transport takes around 35 minutes.

      When to fly to Adelaide Airport (ADL)

      • December is the most popular month for flights from Seattle / Tacoma International Airport to Adelaide Airport. For a quieter experience, travel to Adelaide in March.

      • Lock in your flight from Seattle / Tacoma International Airport to Adelaide Airport for January if you want to visit Adelaide during its warmest month. You can expect temperatures of between 15ºC and 30ºC.

      • July sees average temperatures of between 7ºC and 14ºC. Look for cheap tickets from SEA to ADL sometime then if you like travelling in cooler conditions.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.