$629 Cheap Flights from Adelaide (ADL) to Seattle (SEA)

Popular airlines from Adelaide, SA Airport (ADL) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Adelaide to Seattle (ADL-SEA)

Prices were available within the past 7 days and start at $629 for one-way flights and $1,135 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fiji Airways
Qantas Airways
Virgin Australia
Virgin Australia
Virgin Australia
Virgin Australia
Virgin Australia
Air Canada
Qantas Airways
Singapore Airlines

Frequently asked questions

How much does a flight from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA) cost?
Snag a cheap one-way flight from $629 or cheap return flight from $1,135 from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from ADL to SEA is January, when there's less demand. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline that'll fly you from ADL to SEA, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA)?
Nonstop flights from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ADL to SEA?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA)?
Book a flight from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your ticket from ADL to SEA just before your journey is usually more expensive. However, if there's some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book an ADL to SEA flight and hotel package?
Opting for an ADL to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA)?
Generally, it's possible to reschedule or cancel your ADL to SEA flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Adelaide
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air New Zealand, All Nippon Airways, Emirates, Qantas Airways, Qatar Airways, Singapore Airlines
Roundtrip price
$1,134
Distance
8337 mi

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Book with confidence

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