Cheap flights from Seattle to Adelaide

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Adelaide (ADL)
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How to find the cheapest flight from
Seattle (SEA) to Adelaide (ADL)

All the information you need to plan the best SEA to ADL flight in 2021: compare Seattle to Adelaide flight prices with the expected peak season, weather and rainfall in Adelaide.
What is the cheapest month to fly from Seattle to Adelaide?

Due to multiple factors, expect to potentially pay more when booking in January. For low rates, August can be a great choice for travel to Adelaide. Flights to Adelaide from Seattle in August are about C$ 1,538 on average during August, but can be found for as low as C$ 1,230.

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

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.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Adelaide</span> flights.

COVID Restrictions

View COVID Travel Restrictions for Adelaide, Australia

Do I need a COVID test to fly to Adelaide from Seattle?

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

Most visitors from Seattle/Tacoma Intl will not be allowed to enter Adelaide.

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.

Documents
Travel Authorization Form - Travelers who are not in an exempt category may request an individual exemption to Australia's travel restrictions using this form.


Do I need a test to fly back to Seattle from Adelaide?

Returning to Seattle/Tacoma Intl from Adelaide

COVID-19 testing requirements
Visitors from Adelaide must present a negative RT-PCR (NAAT) 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.

Hide COVID Travel Restrictions for Adelaide, Australia

Destination information for Adelaide

Things to know before you go - useful duration and weather info for your trip from Seattle to Adelaide.
Today's exchange rate
C$ 1 = $1.08
Average temperature for September in Adelaide
19.0 °C
Avg rainfall for September in Adelaide
49.0 mm

Airports servicing Seattle

Airports servicing Adelaide

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