Cheap flights from Sydney to Cascade Loop Scenic Byway

View AU$938 flight on Fri, 12 Sep. 2025Opens in a new window

Popular airlines from Sydney to Cascade Loop Scenic Byway

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • All Nippon Airways

    All Nippon Airways

  • Air Canada

    Air Canada

  • Virgin Australia

    Virgin Australia

  • Qantas Airways

    Qantas Airways

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Fiji Airways
Fri, 29 Aug. - Fri, 26 Sep.
SYD
Sydney
PAE
Seattle
AU$2,036 Return, found 5 days ago
AU$2,036
Return
found 5 days ago
Select Fiji Airways flight, departing Fri, 29 Aug. from Sydney to Seattle, returning Fri, 26 Sep., priced at AU$2,036 found 5 days ago
Alaska Airlines
Sat, 17 Jan. - Sun, 25 Jan.
SYD
Sydney
BLI
Bellingham
AU$2,156 Return, found 13 hours ago
AU$2,156
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 17 Jan. from Sydney to Bellingham, returning Sun, 25 Jan., priced at AU$2,156 found 13 hours ago
Alaska Airlines
Sat, 17 Jan. - Sun, 25 Jan.
SYD
Sydney
BLI
Bellingham
AU$2,174 Return, found 13 hours ago
AU$2,174
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 17 Jan. from Sydney to Bellingham, returning Sun, 25 Jan., priced at AU$2,174 found 13 hours ago
Alaska Airlines
Sat, 17 Jan. - Sun, 25 Jan.
SYD
Sydney
BLI
Bellingham
AU$2,191 Return, found 13 hours ago
AU$2,191
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 17 Jan. from Sydney to Bellingham, returning Sun, 25 Jan., priced at AU$2,191 found 13 hours ago
American Airlines
Sat, 17 Jan. - Sun, 25 Jan.
SYD
Sydney
BLI
Bellingham
AU$2,928 Return, found 13 hours ago
AU$2,928
Return
found 13 hours ago
Select American Airlines flight, departing Sat, 17 Jan. from Sydney to Bellingham, returning Sun, 25 Jan., priced at AU$2,928 found 13 hours ago
Qatar Airways
Sat, 17 Jan. - Sun, 25 Jan.
SYD
Sydney
BLI
Bellingham
AU$3,172 Return, found 13 hours ago
AU$3,172
Return
found 13 hours ago
Select Qatar Airways flight, departing Sat, 17 Jan. from Sydney to Bellingham, returning Sun, 25 Jan., priced at AU$3,172 found 13 hours ago

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

June is typically the cheapest month to fly

From AU$1,202 - AU$1,876 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.