Cheap flights from Adelaide to Seattle

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Sat 23/10
Sat 30/10

How to find the cheapest flight from Adelaide to Seattle

All the information you need to plan the best ADL to SEA flight in 2021: compare Adelaide to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.

ADL - SEA

Price

$772 - $1,558

SEA

Temperature

5 - 19 °C

SEA

Precipitation

18 - 168 mm

Popular in

September

High demand for flights, 33% potential price rise

Cheapest in

August

Best time to find cheap flights, 26% potential price drop

Average price

$1,273

Average for round-trip flights in October 2021

Round-trip from

$1,039

From Adelaide to Seattle/Tacoma Intl

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

Flying to your destination on a Wednesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Seattle. Check prices with Cheapflights to find a great deal for your trip.

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

August can be a great time to fly to Seattle from Adelaide with a flight ticket averaging about $1,395. Cheapflights users have found deals in the month of August for as cheap as $1,036. The most expensive prices can be found in the month of September.

When is the cheapest time to fly from Adelaide to Seattle (ADL - SEA)?

Unlike in the evening, when flights are generally more expensive, you can save up to 21% on flights from Adelaide to Seattle by exploring options for tickets at midday.

Related info for your journey

Useful info, stats and facts about Adelaide to Seattle flights.

Which airlines flying from Adelaide to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Adelaide to Seattle/Tacoma Intl that may be offering flexible cancellation policies are Virgin Australia, Cathay Pacific, and Air Canada. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

How popular is this Adelaide to Seattle flight route?

This flight path from Adelaide to Seattle/Tacoma Intl was viewed by 156 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

Consider Air Canada, Cathay Pacific or Air New Zealand when booking your flight. These represent the most popular airlines when flying from Adelaide to Seattle.

What are the cheapest flights from Adelaide to Seattle?

While on average a flight from Adelaide to Seattle is generally $934, our data shows the cheapest flight currently is $651. When looking at the most popular route, (Adelaide - Seattle/Tacoma Intl), you can expect to pay $2,653 for that flight.

Can I fly to Seattle/Tacoma Intl from Adelaide right now?

Information is based on travel restrictions from Adelaide to Seattle/Tacoma Intl

Most visitors from Adelaide need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Adelaide must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Adelaide are not required to quarantine after entering Seattle/Tacoma Intl.

Can I fly back to Adelaide from Seattle/Tacoma Intl?

Returning to Adelaide from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Adelaide.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Adelaide.

Top 3 airlines flying from Adelaide to Seattle

The chart below displays the airlines Cheapflights users travelling from Adelaide to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Virgin Australia
Cheapest$1,069
Average$1,347
FlexibilityNo cancel fee
On-time80%
COVID-19 safety
Cathay Pacific
Cheapest$1,094
Average$1,260
FlexibilityNo cancel fee
On-time72%
COVID-19 safety
Air Canada
Cheapest$1,136
Average$1,879
FlexibilityNo cancel fee
On-time67%
COVID-19 safety