C$995 Cheap Flights from Adelaide (ADL) to Seattle (SEAA)

Compare Adelaide to Seattle flight deals

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

Book the best Seattle fare with no extra fees

Flight deals from Adelaide to Seattle

Looking for a cheap last-minute deal or the best return flight from Adelaide Airport to Seattle? If you want to travel next month, return fares start from C$1,746. 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 April.

Adelaide to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$995
Cheapest month to flyApril

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 C$1,694. 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 C$1,694.
As of July 2026, there are no flights flying from Adelaide to Seattle.
The cheapest month to fly from Adelaide to Seattle is usually November.
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 C$1,694.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Adelaide Airport to Seattle on Monday, November 9, 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 July, the average temperature is usually around 17°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

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

  • To ensure you get on your flight from ADL to Seattle, 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.

  • You can expect longer queues during popular months such as July and other peak seasons. Arriving up to fours hours ahead of an international flight and two hours for domestic departures is a wise move.

  • We make it a piece of cake to plan a flight from ADL to Seattle with a stopover. To see all your options, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to see the sights of your chosen city. Some popular stopovers include:

    • Changi International Airport (SIN)

    • Hamad International Airport (DOH)

    • Dubai Airport (DXB)

  • To travel to United States for tourism purposes, you will require an ETA if you have a passport from Australia. However, visa rules are subject to change and you may need other documents depending on the duration and purpose of your stay. Always check the most recent guidelines before reserving your cheap ticket from Adelaide Airport to Seattle.

  • ADL is about 8 kilometres from central Adelaide. If you're catching a cab, driving or ride-sharing from the centre, it'll take you 17 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be around 49 minutes.

  • Want a stress-free start to your break? Stay near ADL. Whether you're taking an early flight from Adelaide Airport to Seattle or want to avoid feeling rushed, these hotels are ideal:

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

  • C$995 is the best price for a one-way ticket from Adelaide Airport to Seattle. Return flights start at C$1,694. These prices may change based on demand.

  • To score cheap tickets from ADL to Seattle, book early. Airlines typically offer their best fares when flights are first released.

  • The 'Whole month' search tool shows you the cheapest tickets from Adelaide Airport to Seattle throughout the month. It's the best way to snap up a bargain if your trip dates are flexible.

  • Log into your online account or use the app to set up a Price Alert. You'll be notified straight away if there's a better deal on this route. It's simple to do, and it'll save you the hassle of searching for cheap tickets from ADL to Seattle every day.

  • Use the filters to tailor your flights from Adelaide Airport to Seattle. Enter your preferred arrival and departure times, number of stops and airlines. Or sort your results by 'Cheapest' to find the best deals.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to the centre of Seattle takes around 18 minutes by car. It's approximately 23 kilometres away.

  • It takes roughly 54 minutes when travelling by public transport.

  • The last thing you want is a long journey to your hotel if you're getting in late on a flight from Adelaide Airport to Seattle. Stay at one of these accommodation options near SEA instead:

Lake Union Sea Plane Base Airport (LKE)

Best time to go to Seattle

  • July is the busiest month for flights from Adelaide Airport to Seattle. To steer clear of the crowds, head for Seattle in May when it's quieter.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC and 28ºC. Book your flights from Adelaide Airport to Seattle in this month if you enjoy this type of weather.

  • Look for cheap flights from ADL to Seattle in February if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between -1ºC and 11ºC on average.

More about Seattle

Complete your Seattle trip with a car rental

  • Finding you a cheap flight from Adelaide Airport to Seattle isn't our only party trick. Check out our car rentals in Seattle and travel at your own pace. We find deals from trusted car rental providers and put them all in one place. Instantly compare rates and then book with no fees.

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