Cheap Flights from Adelaide to Seattle

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Flight deals from Adelaide to Seattle

Looking for a cheap last-minute deal or the best return flight from Adelaide to Seattle? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Adelaide to Seattle

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

Alternative Adelaide to Seattle routes

Looking for the cheapest, fastest or easiest route from Adelaide to Seattle? You could fly into the following airports instead.

Adelaide to Seattle: Flight information

The things to know before you go.
Cheapest flight foundR 11,781
Cheapest month to flyDecember

Finding cheap flights from Adelaide to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Adelaide to Seattle is R 18,670. 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 Adelaide to Seattle. But we found flights with one or more stops from R 18,670.
As of June 2025, there are no flights flying from Adelaide to Seattle.
The cheapest month to fly from Adelaide to Seattle is usually June 2025.
If you're flying from Adelaide Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from R 18,670.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Adelaide Airport to Seattle on Saturday, 2 May 2026.
No airlines currently offer direct flights between Adelaide Airport and Seattle. 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 Seattle 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 Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 14°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Singapore Airlines offers the cheapest flight tickets to Seattle.

Flying from Adelaide Airport (ADL) to Seattle: what you need to know

  • Seattle is 17 hours 30 minutes behind Adelaide, where Adelaide Airport is located. Seattle follows the UTC-7 timezone.

  • Leave plenty of time to catch your ADL to Seattle flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Delays at check-in and security are likely if you're heading away during high season, so give yourself even more breathing space. A good rule of thumb for peak periods? Get there up to four hours ahead for international flights and two hours for domestic departures.

  • We make it a breeze to book flight tickets from ADL to Seattle with a stopover. To see the options, deselect 'Direct flights only.' Next, select a flight offering a stop long enough to see the sights of the city of your choice. Popular stopovers include:

    • Dubai Airport (DXB)

    • Changi International Airport (SIN)

    • Hamad International Airport (DOH)

  • Located around 6 kilometres from the centre of Adelaide, ADL can be reached in about 15 minutes by car, depending on traffic. Travelling on public transport takes roughly 50 minutes.

  • Want a hassle-free start to your travels? Stay near ADL. Whether you're catching an early flight from Adelaide Airport to Seattle or don't want departure day to feel hectic, these hotels are worth a look:

  • Of the flights that depart from Adelaide Airport, 75.6% land on schedule at their destination.

How to find the cheapest flights from Adelaide Airport (ADL) to Seattle

  • The best price we've found for a one-way Adelaide Airport to Seattle flight is R 11,781. The cheapest price for a return flight is R 18,670. Keep in mind fares can change due to demand at the time of booking.

  • Booking in advance is often the key to securing a cheap flight from ADL to Seattle. Prices tend to rise as demand increases, so the closer your departure date, the more expensive your ticket may be.

  • Scoring cheap tickets from Adelaide Airport to Seattle is more likely if you can be flexible with your travel dates. Try using the 'Whole month' search tool to access the lowest fares across each month and pick up an incredible deal.

  • Spend less time searching for cheap flights from ADL to Seattle by creating a Price Alert. You'll get an email or notification through the app when a special offer becomes available.

  • Snag an affordable flight from Adelaide Airport to Seattle with the help of our filters. Select your preferred duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from the centre of Seattle. If you're getting a cab or a ride-share, the drive takes about 20 minutes.

  • If you're travelling on public transport, expect a journey time of about 55 minutes.

  • Book a hotel close to SEA if you have a late flight from Adelaide Airport to Seattle. Select one of these accommodation options and make your arrival easier:

  • Follow your own route with a Seattle-Tacoma International Airport rental car. Pick up your wheels from Thrifty, Europcar or Budget and see more of Seattle and beyond.

  • Reserving your vehicle from Seattle-Tacoma International Airport about one week before your flight from ADL to Seattle can help you get the best possible rate.

Lake Union Sea Plane Base Airport (LKE)

  • Once your flight from Adelaide Airport to Seattle has touched down, you can reach the city centre in about 10 minutes by car. Central Seattle is roughly 3 kilometres from Lake Union Sea Plane Base Airport (LKE).

  • If you're catching public transport, it'll take around 25 minutes.

  • There are some comfortable places ready to welcome you near LKE. Unwind and get cosy after your ADL to Seattle flight at any of these well-located options:

Best time to go to Seattle

  • Travel to Seattle during high season if you want a bustling atmosphere, but remember that prices are typically higher. Alternatively, book your flights from Adelaide Airport to Seattle in the off-season when prices are cheaper and crowds are smaller.

  • Lock in an Adelaide Airport to Seattle flight ticket with a departure in August if you're eager to visit the city during its warmest month. You can expect temperatures to range from 12ºC (54ºF) to 28ºC (82ºF).

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Search for a cheap ticket from ADL to Seattle around that time if you want to travel when it's cooler.

More about Seattle

  • When it comes to searching for somewhere to lay your head, you'll find the most popular stays in Seattle right here. Explore these options as soon as you've locked in your flight from Adelaide Airport to Seattle:

  • There are so many things to explore in this city it can be tricky to know where to start. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are major attractions which should feature on any good Seattle itinerary.

Explore more of United States

  • Seattle has loads to offer, but there are so many other parts of United States waiting to be discovered. Around 241 kilometres south of Seattle, a visit to Portland will fill your itinerary to the brim. Start with popular sights like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 370 kilometres east of Seattle, Spokane is another essential stop in United States. Get a taste of what this destination has to offer at Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.