Cheap flights from Boise to Blue Mountains

View AU$865 flight on Thu, 11 Sep. 2025Opens in a new window

Popular airlines from Boise to Blue Mountains

  • American Airlines

    American Airlines

  • Air Canada

    Air Canada

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • Air New Zealand

    Air New Zealand

  • United

    United

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Cheap Flights from Boise (BOI) to Blue Mountains (SYD)

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.

Alaska Airlines
Wed, 27 Aug. - Sun, 31 Aug.
BOI
Boise
SYD
Sydney
AU$1,701 Return, found 21 hours ago
AU$1,701
Return
found 21 hours ago
Select Alaska Airlines flight, departing Wed, 27 Aug. from Boise to Sydney, returning Sun, 31 Aug., priced at AU$1,701 found 21 hours ago
United
Mon, 1 Sep. - Mon, 8 Sep.
BOI
Boise
SYD
Sydney
AU$1,740 Return, found 6 days ago
AU$1,740
Return
found 6 days ago
Select United flight, departing Mon, 1 Sep. from Boise to Sydney, returning Mon, 8 Sep., priced at AU$1,740 found 6 days ago
Alaska Airlines
Fri, 27 Feb. - Thu, 5 Mar.
BOI
Boise
SYD
Sydney
AU$1,758 Return, found 3 days ago
AU$1,758
Return
found 3 days ago
Select Alaska Airlines flight, departing Fri, 27 Feb. from Boise to Sydney, returning Thu, 5 Mar., priced at AU$1,758 found 3 days ago
American Airlines
Thu, 22 Jan. - Thu, 5 Mar.
BOI
Boise
SYD
Sydney
AU$1,782 Return, found 3 days ago
AU$1,782
Return
found 3 days ago
Select American Airlines flight, departing Thu, 22 Jan. from Boise to Sydney, returning Thu, 5 Mar., priced at AU$1,782 found 3 days ago
Delta
Mon, 1 Sep. - Mon, 8 Sep.
BOI
Boise
SYD
Sydney
AU$1,954 Return, found 6 days ago
AU$1,954
Return
found 6 days ago
Select Delta flight, departing Mon, 1 Sep. from Boise to Sydney, returning Mon, 8 Sep., priced at AU$1,954 found 6 days ago
Air New Zealand
Thu, 22 Jan. - Thu, 5 Mar.
BOI
Boise
SYD
Sydney
AU$2,565 Return, found 3 days ago
AU$2,565
Return
found 3 days ago
Select Air New Zealand flight, departing Thu, 22 Jan. from Boise to Sydney, returning Thu, 5 Mar., priced at AU$2,565 found 3 days ago

Find the cheapest month to fly from Boise (BOI) to Sydney (SYD)

August is typically the cheapest month to fly

From AU$1,363 - AU$2,258 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.