Skip to content

Get United's best fares today on flights from Washington to Sun Valley from *

Select journey type

Enter to select travel class and passengers

Looking for additional flights from Washington to Sun Valley?

FromToDatesFare TypePrice

Washington (IAD)

Sun Valley (SUN)

Depart: 01/04/20

Return: 01/09/20

Roundtrip
from
$304*
Viewed:17hoursago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/06/20

Return: 02/13/20

Roundtrip
from
$578*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/12/20

Return: 02/19/20

Roundtrip
from
$396*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/09/20

Return: 02/16/20

Roundtrip
from
$486*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/08/20

Return: 02/15/20

Roundtrip
from
$330*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/10/20

Return: 02/17/20

Roundtrip
from
$933*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/17/20

Return: 02/24/20

Roundtrip
from
$486*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/18/20

Return: 02/25/20

Roundtrip
from
$314*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/20/20

Return: 02/27/20

Roundtrip
from
$446*
Viewed:50minutesago

Washington (IAD)

Sun Valley (SUN)

Depart: 02/13/20

Return: 02/20/20

Roundtrip
from
$642*
Viewed:50minutesago

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Sun Valley

Thursday broken clouds
33°F 12/05/19
Friday broken clouds
29°F 12/06/19
Saturday snow
29°F 12/07/19
Sunday light snow
29°F 12/08/19
Monday sky is clear
24°F 12/09/19
Tuesday sky is clear
25°F 12/10/19
Wednesday overcast clouds
25°F 12/11/19
Powered by: OpenWeatherMap.org