Cheap flights from Sydney to Cascade Loop Scenic Byway from CA $1,000

View CA $1,000 flight on Fri, Apr. 24, 2026Opens in a new window

Popular airlines from Sydney to Cascade Loop Scenic Byway

  • American Airlines

    American Airlines

  • Delta

    Delta

  • All Nippon Airways

    All Nippon Airways

  • Air Canada

    Air Canada

  • Qantas Airways

    Qantas Airways

  • Japan Airlines

    Japan Airlines

  • Alaska Airlines

    Alaska Airlines

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Cheap flights from Sydney (SYD) to Cascade Loop Scenic Byway (SEA)

Prices were available within the past 7 days and start at CA $1,000 for one-way flights and CA $2,924 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Dec. 26 - Fri, Jan. 9
SYD
Sydney
PAE
Seattle
CA $2,924 Roundtrip, found 5 days ago
CA $2,924
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Dec. 26 from Sydney to Seattle, returning Fri, Jan. 9, priced at CA $2,924 found 5 days ago
Alaska Airlines
Fri, Dec. 26 - Fri, Jan. 9
SYD
Sydney
PAE
Seattle
CA $3,007 Roundtrip, found 5 days ago
CA $3,007
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Dec. 26 from Sydney to Seattle, returning Fri, Jan. 9, priced at CA $3,007 found 5 days ago
Alaska Airlines
Fri, Dec. 19 - Fri, Jan. 2
SYD
Sydney
PAE
Seattle
CA $3,064 Roundtrip, found 2 days ago
CA $3,064
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Dec. 19 from Sydney to Seattle, returning Fri, Jan. 2, priced at CA $3,064 found 2 days ago
Alaska Airlines
Fri, Dec. 26 - Fri, Jan. 9
SYD
Sydney
PAE
Seattle
CA $3,170 Roundtrip, found 5 days ago
CA $3,170
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Dec. 26 from Sydney to Seattle, returning Fri, Jan. 9, priced at CA $3,170 found 5 days ago
Alaska Airlines
Fri, Dec. 26 - Fri, Jan. 9
SYD
Sydney
PAE
Seattle
CA $3,253 Roundtrip, found 5 days ago
CA $3,253
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Dec. 26 from Sydney to Seattle, returning Fri, Jan. 9, priced at CA $3,253 found 5 days ago
Alaska Airlines
Fri, Dec. 19 - Fri, Jan. 2
SYD
Sydney
PAE
Seattle
CA $3,310 Roundtrip, found 2 days ago
CA $3,310
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Dec. 19 from Sydney to Seattle, returning Fri, Jan. 2, priced at CA $3,310 found 2 days ago

Find the cheapest month to fly from Sydney (SYD) to Seattle (SEA)

June is typically the cheapest month to fly

From CA $1,080 - CA $1,684 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.