Seattle to Sydney flights from $1479

Flights starting at $1479. Choose between Alaska Airlines, United Airlines, or Delta Air Lines to find the best price.

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Tips to know when travelling to Sydney

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Travelers usually depart from Seattle–Tacoma International, Seattle, WA - King Street Station, Seattle, WA - Greyhound Station, Seattle, WA - Ferry Terminal, or Seattle WA - South Lane St. Bus Stop when they travel from Seattle to Sydney. The most popular airlines for this route are Alaska Airlines, United Airlines, Delta Air Lines, Qantas, and Hawaiian Airlines. Seattle and Sydney have 344 direct flights per week. When you arrive at Sydney, consider visiting Blue Mountains, and Sydney Opera House.

Check-in for a flight from Seattle to Sydney

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASYesOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
QantasQFAQFYesNo
Hawaiian AirlinesHALHANoOpens 24 days before flight
Closes 1 hours before flight

Australia COVID-19 travel restrictions

Your trip summary

Most travelers from Seattle, SEA with proof of full COVID-19 vaccination can enter Sydney, SYD, but there are restrictions.

Departure

Visa requirements
  • Electronic travel authorization

Return

Travel restrictions
  • Travel is allowed with restrictions for vaccinated travelers

  • No proof of negative pre-departure COVID-19 test results or recovery certificate

  • No quarantine required for vaccinated travelers

Visa requirements
  • Electronic travel authorization

Forms and documents
  • Mandatory proof of vaccination for the United States

  • Mandatory travel attestation form

  • Recommended contact-tracing app

Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.

Learn more about COVID-19 restrictions in Australia in our dedicated Stories article.

Frequently asked questions

What are the most popular routes to and from Seattle?
Travelers frequently search for route combinations, such as Seattle and Denver, Las Vegas, Mexico City, Orlando, Atlanta, Austin, London, Houston, Paris, Barcelona, Rome, Los Angeles, Phoenix, Washington, D.C., Detroit, Madrid, Dublin, Minneapolis, Cleveland, Guadalajara.
What are the most popular routes to and from Sydney?
Travelers frequently search for route combinations, such as Sydney and Melbourne, Auckland, Los Angeles, Denpasar, Cairns, Manila, Honolulu, Brisbane, Singapore, Bangkok, Queenstown, San Francisco, Gold Coast, Tokyo, Seoul, Ho Chi Minh City, Adelaide, Phnom Penh, Kuala Lumpur, Kathmandu.
Which airports are there in Seattle?
Seattle is mainly served by Seattle–Tacoma International. But there are other airports nearby, including Kenmore Air Harbor Seaplane Base, Boeing Field.
What airports are near Seattle?
The main airport in Seattle is Seattle–Tacoma International. It is also served by Portland International, Vancouver International, Bellingham International, Paine Field Everett, Abbotsford International, Yakima Air Terminal, Pangborn Memorial, Victoria Inner Harbour SPB, Vancouver Harbour Flight Centre.
What airports are near Sydney?
The main airport in Sydney is Sydney. It is also served by Canberra, Newcastle, Orange, Illawarra Regional, Bathurst.
What buses and trains depart from Seattle?
A number of bus and train companies depart from Seattle, including Amtrak train.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Seattle and Sydney?
Yes, it's possible to combine different modes of transport between Seattle and Sydney thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Seattle and Sydney can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
What is Virtual Interlining and how do I use it?
Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.
Which airlines fly between Seattle and Sydney?
Currently, you can fly between Seattle and Sydney with Alaska Airlines, United Airlines, Delta Air Lines, Qantas, Hawaiian Airlines.
When's the best time to travel between Seattle and Sydney?
What flights operate between Seattle and Sydney?
How many airports are there near Seattle?
How many airports are there near Sydney?
Is it possible to reach Seattle by bus or train?
What time do nonstop (direct) flights between Seattle and Sydney depart?
What time do nonstop (direct) flights between Seattle and Sydney arrive?
What time do flights between Seattle and Sydney depart?
What time do flights between Seattle and Sydney arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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