Question 1

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

Accepted Answer

Our cheapest airline available from Seattle to Adelaide is Qantas Airways. Our recent data shows that you can find tickets from as low as $1,620 on this airline. Additional options worth looking into are United Airlines and Qatar Airways, starting at $2,406 and $2,510 round-trip. Qantas Airways is 28% cheaper than the average price of flights available within the next 90 days to this destination. Find deals

Question 2

What are the cheapest airlines to fly from Seattle to Adelaide one-way?

Accepted Answer

For one-way options, check prices for Qantas Airways. According to our data, you can fly for as low as $770. Users have also found prices from $1,765 and $2,039 on Singapore Airlines and Qatar Airways, respectively. Find deals

Question 3

What is the cheapest month to book a flight from Seattle to Adelaide?

Accepted Answer

Currently, June is the cheapest month in which you can book a flight from Seattle to Adelaide (average of $168). Flying from Seattle to Adelaide in October is currently the most expensive (average of $241). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options. Find deals

Question 4

What is the cheapest day to fly from Seattle to Adelaide?

Accepted Answer

Travellers seeking maximum savings on their Seattle to Adelaide flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time. Find deals

Question 5

E

Accepted Answer

In terms of precipitation, rainfall in Adelaide ranges from 10.0 - 60.0 inches per month. July is typically the wettest month, when rainfall can reach 60.0 mm. January is typically the driest time to visit Adelaide when rainfall is around 10.0 mm.

Question 6

E

Accepted Answer

If weather is an important factor for your trip to Adelaide, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

Question 7

What is the cheapest day to fly return from Seattle to Adelaide?

Accepted Answer

Saturday flights are generally found to be more expensive for flights from Seattle to Adelaide. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Adelaide.

Question 8

What is the cheapest month to fly from Seattle to Adelaide?

Accepted Answer

The best pricing can be found in the month of November. Prices to Adelaide from Seattle average $2,265. You can even find prices in November for less than $2,265, as users have found deals to Adelaide from as low as $1,689. The month of January appears to be one of the more expensive times to travel to Adelaide from Seattle. Flying in the targeted month can save you up to 48%.

Question 9

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

Accepted Answer

When flying from Seattle to Adelaide, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 10

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

Accepted Answer

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

Question 11

How can I find direct flights from Seattle to Adelaide?

Accepted Answer

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

Question 12

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

Accepted Answer

Yes. Cheapflights offers flight deals from Seattle to Adelaide 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 13

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

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Adelaide from Seattle today with Cheapflights!

Question 14

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

Accepted Answer

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Adelaide.

Question 15

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

Accepted Answer

Yes, we can. To see specific flights from Seattle to Adelaide with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 16

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

Accepted Answer

Yes, Cheapflights offers price alerts on Seattle to Adelaide flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	$1,612
One-way from	$770
Popular in	January
Cheapest in	November
Average price	$1,934

Cheap flights from Seattle to Adelaide from $770

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Seattle to AdelaideExplore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.

Explore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.

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Best time to book a flight from Seattle to Adelaide

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

Reviews of airlines servicing Adelaide

See what other customers who have flown with Singapore Airlines, Fiji Airways, andQantas Airways from Seattle to Adelaide 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 Seattle to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

What are the cheapest airlines to fly from Seattle to Adelaide one-way?

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

How can I find direct flights from Seattle to Adelaide?

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

What is the cheapest month to book a flight from Seattle to Adelaide?

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

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

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

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

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Cheapest flights from Seattle to Adelaide
Explore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.