Flights to Southwest Idaho from Austin - ￥39,190

View ￥39,190 flight on Fri, Jul 25, 2025Opens in a new window

Popular airlines from Austin to Southwest Idaho

  • Peach

    Peach

  • Skymark Airlines

    Skymark Airlines

  • All Nippon Airways

    All Nippon Airways

  • Japan Airlines

    Japan Airlines

  • Jetstar Japan

    Jetstar Japan

  • Solaseed Air

    Solaseed Air

  • STARFLYER

    STARFLYER

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Cheap Flights from Austin to Southwest Idaho (AUS-BOI)

Prices were available within the past 7 days and start at ￥39,190 for one-way flights and ￥73,990 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Jul 25 - Tue, Jul 29
AUS
Austin
SUN
Sun Valley
￥73,990 Roundtrip, found 17 hours ago
￥73,990
Roundtrip
found 17 hours ago
Select United flight, departing Fri, Jul 25 from Austin to Sun Valley, returning Tue, Jul 29, priced at ￥73,990 found 17 hours ago
United
Fri, Jul 25 - Tue, Jul 29
AUS
Austin
SUN
Sun Valley
￥78,400 Roundtrip, found 17 hours ago
￥78,400
Roundtrip
found 17 hours ago
Select United flight, departing Fri, Jul 25 from Austin to Sun Valley, returning Tue, Jul 29, priced at ￥78,400 found 17 hours ago
United
Fri, Jul 25 - Tue, Jul 29
AUS
Austin
SUN
Sun Valley
￥79,040 Roundtrip, found 17 hours ago
￥79,040
Roundtrip
found 17 hours ago
Select United flight, departing Fri, Jul 25 from Austin to Sun Valley, returning Tue, Jul 29, priced at ￥79,040 found 17 hours ago
United
Fri, Jul 25 - Tue, Jul 29
AUS
Austin
SUN
Sun Valley
￥81,170 Roundtrip, found 17 hours ago
￥81,170
Roundtrip
found 17 hours ago
Select United flight, departing Fri, Jul 25 from Austin to Sun Valley, returning Tue, Jul 29, priced at ￥81,170 found 17 hours ago
United
Fri, Jul 18 - Fri, Jul 25
AUS
Austin
SUN
Sun Valley
￥81,430 Roundtrip, found 3 days ago
￥81,430
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 18 from Austin to Sun Valley, returning Fri, Jul 25, priced at ￥81,430 found 3 days ago
Delta
Fri, Jul 25 - Tue, Jul 29
AUS
Austin
SUN
Sun Valley
￥101,830 Roundtrip, found 17 hours ago
￥101,830
Roundtrip
found 17 hours ago
Select Delta flight, departing Fri, Jul 25 from Austin to Sun Valley, returning Tue, Jul 29, priced at ￥101,830 found 17 hours ago

Find the cheapest month to fly from Austin (AUS) to Boise (BOI)

August is typically the cheapest month to fly

From ￥17,174 - ￥59,689 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.