Cheap Flights from Sun Valley from ฿2,525

View ฿2,525 flight on Mon, 23 Feb 2026Opens in a new window

Popular airlines from Sun Valley

  • Alaska Airlines

  • Delta

  • United

  • American Airlines

  • Southwest Airlines

  • Air Canada

  • Aeromexico

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Sun Valley

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿4,345 Return, found 1 day ago
฿4,345
Return
found 1 day ago
Select Delta flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿4,345 found 1 day ago
United
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿6,725 Return, found 1 day ago
฿6,725
Return
found 1 day ago
Select United flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿6,725 found 1 day ago
United
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿6,895 Return, found 1 day ago
฿6,895
Return
found 1 day ago
Select United flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿6,895 found 1 day ago
United
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿7,820 Return, found 1 day ago
฿7,820
Return
found 1 day ago
Select United flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿7,820 found 1 day ago
United
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿7,980 Return, found 1 day ago
฿7,980
Return
found 1 day ago
Select United flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿7,980 found 1 day ago
United
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿7,990 Return, found 1 day ago
฿7,990
Return
found 1 day ago
Select United flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿7,990 found 1 day ago
United
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿9,085 Return, found 1 day ago
฿9,085
Return
found 1 day ago
Select United flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿9,085 found 1 day ago
United
Tue, 21 Apr - Sat, 25 Apr
BOI
Boise
SEA
Seattle
฿9,255 Return, found 1 day ago
฿9,255
Return
found 1 day ago
Select United flight, departing Tue, 21 Apr from Boise to Seattle, returning Sat, 25 Apr, priced at ฿9,255 found 1 day ago
American Airlines
Sun, 15 Feb - Sun, 1 Mar
BOI
Boise
SJD
San José del Cabo
฿16,310 Return, found 6 days ago
฿16,310
Return
found 6 days ago
Select American Airlines flight, departing Sun, 15 Feb from Boise to San José del Cabo, returning Sun, 1 Mar, priced at ฿16,310 found 6 days ago
Aeromexico
Sun, 15 Feb - Sun, 1 Mar
BOI
Boise
SJD
San José del Cabo
฿42,590 Return, found 6 days ago
฿42,590
Return
found 6 days ago
Select Aeromexico flight, departing Sun, 15 Feb from Boise to San José del Cabo, returning Sun, 1 Mar, priced at ฿42,590 found 6 days ago

Flights from Sun Valley: Essential Travel Information

Cheapest flight from Sun Valley
฿4,345 (roundtrip)
Best airlines to fly from Sun Valley
Delta, United, American Airlines, Aeromexico
Cheapest month to fly from Sun Valley
April
Sun Valley IATA code
BOI
Sun Valley Country/State
Idaho
Airline ticket deals from Sun Valley
฿4,345 - ฿42,590

 

Explore a world of travel with Expedia

*Available to Expedia members.