Q: How much does it cost for a return flight from Adelaide to Seattle?

Airfare is below average for this route at the moment. Adelaide to Seattle flights typically cost between $1,699 and $1,654 in July. The cheapest return flight price found within the last 3 days was $1,693 on Qantas Airways (21 July-5 Aug). Find deals

Question 1

Which airport typically offers the quickest stopover for flights from Adelaide to Seattle?

Accepted Answer

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average stopover time of 1h 44m. Find deals

Question 2

What’s the fastest stopover option from Adelaide to Seattle?

Accepted Answer

Flights via San Francisco (SFO) have the shortest average one-way travel time for one-stop routes: 19h 15m. Find deals

Question 3

How much does it cost for a return flight from Adelaide to Seattle?

Accepted Answer

Airfare is below average for this route at the moment.Adelaide to Seattle flights typically cost between $1,699 and $1,654 in July.
The cheapest return flight price found within the last 3 days was $1,693 on Qantas Airways (21 July-5 Aug). Find deals

Question 4

What’s the cheapest stopover airport for flights from Adelaide to Seattle?

Accepted Answer

Doha (DOH) is the most affordable one-stop option, with an average return flight price of $3,410. Find deals

Question 5

What’s the top stopover airport for flights from Adelaide to Seattle?

Accepted Answer

San Francisco (SFO) – chosen by Cheapflights users on 44% of one-stop itineraries from Adelaide to Seattle on Cheapflights.

Question 6

How long is the flight from Adelaide to Seattle?

Accepted Answer

Qantas Airways, United Airlines, and Virgin Australia can get you from Adelaide to Seattle in just under 23h 04m. Your travel time can differ by up to 2h 32m. There are 13409 km between Adelaide and Seattle. This flight may include one or multiple stops.

Question 7

What are the cheapest airlines flying from Adelaide to Seattle round-trip?

Accepted Answer

According to our current data, Air Canada ($1,164), Qantas Airways ($1,165), and United Airlines ($1,471) offers the cheapest pricing from Adelaide to Seattle. These flights start at 27% lower than the current average price 3 months from now.

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Question 9

E

Accepted Answer

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Question 10

What are the most popular airlines that fly from Adelaide to Seattle?

Accepted Answer

Consider Virgin Australia, Qantas Airways or Air Canada when booking your flight. These represent the most popular airlines when flying from Adelaide to Seattle.

Question 11

What is the cheapest time of day to fly from ADL to SEA?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Adelaide to Seattle as you normally would.

Question 12

Can I find deals for flights from Adelaide to Seattle that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Adelaide to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 13

How can I find direct flights from Adelaide to Seattle?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Adelaide to Seattle.

Question 14

Can I find deals for business class flights from Adelaide to Seattle?

Accepted Answer

Yes. Cheapflights offers flight deals from Adelaide to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 15

How does Cheapflights help users find flights from Adelaide to Seattle?

Accepted Answer

Cheapflights helps you search for flights from Adelaide to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 16

Why should you use Cheapflights to find cheap flight tickets from Adelaide to Seattle?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Adelaide to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 17

Can Cheapflights find flights from Adelaide to Seattle with no change fees?

Accepted Answer

Certainly. Search results for flights to Seattle from Adelaide shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 18

Can Cheapflights notify me if prices for flights from Adelaide to Seattle become cheaper?

Accepted Answer

Yes! Start tracking prices for Adelaide to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$1,164	Average$1,446	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Qantas Airways	Cheapest$1,165	Average$1,610	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
United Airlines	Cheapest$1,471	Average$1,674	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Australia	Cheapest$1,580	Average$1,654	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights

Cheap flights from Adelaide to Seattle from $1,693

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Adelaide to Seattle

Cheapest flights from Adelaide to SeattleExplore the most affordable flight options available from Adelaide to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2026.

Explore the most affordable flight options available from Adelaide to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2026.

Best flights from Adelaide to SeattleDiscover carefully curated flight deals from Adelaide to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 May 2026.

Discover carefully curated flight deals from Adelaide to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 May 2026.

Find flight deals from Adelaide to Seattle

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Adelaide to Seattle that are best for you.

Best time to book a flight from Adelaide to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Adelaide with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Adelaide to Seattle

How much does it cost for a return flight from Adelaide to Seattle?

What’s the top stopover airport for flights from Adelaide to Seattle?

What’s the cheapest stopover airport for flights from Adelaide to Seattle?

What’s the fastest stopover option from Adelaide to Seattle?

Which airport typically offers the quickest stopover for flights from Adelaide to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 1 May 2026.

See what other customers who have flown with Virgin Australia,Qantas Airways, andUnited Airlines from Adelaide to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Adelaide to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Adelaide to Seattle?

What are the cheapest airlines flying from Adelaide to Seattle round-trip?

Can I find deals for flights from Adelaide to Seattle that include hotel bookings?

How can I find direct flights from Adelaide to Seattle?

Can I find deals for business class flights from Adelaide to Seattle?

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Adelaide to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Seattle by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Adelaide to Seattle by cabin class

Find flights from Adelaide to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Adelaide and Seattle flights

Browse other Adelaide and Seattle flight options. Last updated on 1 May 2026.

Other flights from Adelaide

Browse through other flights departing from Adelaide. Flights are based on user searches made on Cheapflights and were last updated on 1 May 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Seattle

Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 1 May 2026.

Top 4 airlines flying from Adelaide to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Adelaide to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Adelaide to Seattle?

Can Cheapflights find flights from Adelaide to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Adelaide to Seattle become cheaper?

100% Free

Book with flexibility

Travel Smart

Cheapest flights from Adelaide to Seattle
Explore the most affordable flight options available from Adelaide to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2026.

Best flights from Adelaide to Seattle
Discover carefully curated flight deals from Adelaide to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 May 2026.