Cheap Flights to Sun Valley from HK$616

View HK$616 flight on Tue, 27 May 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Sun Valley

Prices were available within the past 7 days and start at HK$616 for one-way flights and HK$1,994 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 31 Jul - Tue, 19 Aug
SFO
San Francisco
BOI
Boise
HK$1,994 Return, found 2 days ago
HK$1,994
Return
found 2 days ago
Select Delta flight, departing Thu, 31 Jul from San Francisco to Boise, returning Tue, 19 Aug, priced at HK$1,994 found 2 days ago
Delta
Thu, 31 Jul - Tue, 19 Aug
SFO
San Francisco
BOI
Boise
HK$2,037 Return, found 2 days ago
HK$2,037
Return
found 2 days ago
Select Delta flight, departing Thu, 31 Jul from San Francisco to Boise, returning Tue, 19 Aug, priced at HK$2,037 found 2 days ago
Delta
Thu, 31 Jul - Tue, 19 Aug
SFO
San Francisco
BOI
Boise
HK$2,198 Return, found 2 days ago
HK$2,198
Return
found 2 days ago
Select Delta flight, departing Thu, 31 Jul from San Francisco to Boise, returning Tue, 19 Aug, priced at HK$2,198 found 2 days ago
United
Thu, 31 Jul - Tue, 19 Aug
SFO
San Francisco
BOI
Boise
HK$2,390 Return, found 2 days ago
HK$2,390
Return
found 2 days ago
Select United flight, departing Thu, 31 Jul from San Francisco to Boise, returning Tue, 19 Aug, priced at HK$2,390 found 2 days ago
American Airlines
Thu, 31 Jul - Tue, 19 Aug
SFO
San Francisco
BOI
Boise
HK$3,435 Return, found 2 days ago
HK$3,435
Return
found 2 days ago
Select American Airlines flight, departing Thu, 31 Jul from San Francisco to Boise, returning Tue, 19 Aug, priced at HK$3,435 found 2 days ago
*Available to Expedia members.