Flight to Custer County

View S$412 flight on Mon, 5 Oct, 2026Opens in a new window

Popular airlines to Custer County

  • Alaska Airlines

  • United

  • Delta

  • KLM

  • Air France

  • Virgin Atlantic

  • American Airlines

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Cheap round-trip flights to Custer County

Prices were available within the past 7 days and start at S$412 for one-way flights and S$841 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$841 Return, found 18 hours ago
S$841
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$841 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$848 Return, found 18 hours ago
S$848
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$848 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$850 Return, found 18 hours ago
S$850
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$850 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$852 Return, found 18 hours ago
S$852
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$852 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$857 Return, found 18 hours ago
S$857
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$857 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$859 Return, found 18 hours ago
S$859
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$859 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$875 Return, found 18 hours ago
S$875
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$875 found 18 hours ago
Delta
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$876 Return, found 18 hours ago
S$876
Return
found 18 hours ago
Select Delta flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$876 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$888 Return, found 18 hours ago
S$888
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$888 found 18 hours ago
Delta
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$889 Return, found 18 hours ago
S$889
Return
found 18 hours ago
Select Delta flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$889 found 18 hours ago
United
Mon, 5 Oct - Fri, 9 Oct
SFO
San Francisco
SUN
Sun Valley
S$907 Return, found 18 hours ago
S$907
Return
found 18 hours ago
Select United flight, departing Mon, 5 Oct from San Francisco to Sun Valley, returning Fri, 9 Oct, priced at S$907 found 18 hours ago

Frequently asked questions

How do I find cheap flights to Custer County that have flexible change policies?
Search for your bargain flights to Custer County, then mark the "No change fee" box underneath the "Flexible change policies" heading. It's as simple as that. We appreciate that plans can change and flexibility is essential, so you can book with confidence with Expedia.
Which airlines fly to Custer County?
With a great selection of airlines offering flights into or near Custer County, the choice is all yours:

  • Alaska Airlines - 754 flights to or near Custer County each month, including 754 flights to Boise Airport (BOI) per month.
  • Delta Air Lines - 489 flights to or near Custer County each month, including 489 flights to Boise Airport (BOI) per month.
  • United Airlines - 303 flights to or near Custer County each month, including 303 flights to Boise Airport (BOI) per month.

How can I find cheap tickets to Custer County?
An excellent strategy for getting your hands on cheap airfares is to be flexible with your dates. Start by searching for your flight to Custer County, then click on the "flexible dates" link to compare prices for nearby days. Another good tip? Book well ahead. To give you an idea of fares, S$841 was the best price for a flight to Custer County in the last seven days.
How much is a flight to Custer County?
One-way flights leaving San Francisco (SFO) sold for as low as S$412 in the last seven days. During this period, the price of a return journey to Custer County ranged between S$841 and S$1,105. If you find a bargain ticket, book immediately — these fares don't stick around.
What are the most popular airports to fly into in Custer County?
Start planning your Custer County trip by securing a seat on one of the 1,994 flights each month to Boise Airport (BOI). This is the region's main entryway.
When is the cheapest time to fly to Custer County?
Fly out on a Tuesday to increase your chances of getting the cheapest deal to Custer County. Mondays are usually the second most affordable day to take off. Saturday is normally the priciest day to fly anywhere.
How much is a plane ticket to Custer County?
In the last seven days, flights to Custer County varied between S$841 and S$1,105. Prices depend on the departure time, carrier, cabin class and when the fare is booked.
What is the best time to go to Custer County?
May, June and July are the most popular months to explore Challis, one of Custer County's most famous cities. Summertime here starts June 20. Average temperatures range from 7ºC to 24ºC throughout the season, so travel around then if warmer weather is your preference.
What months are the cheapest to book a flight to Custer County?
The best month to book a terrific deal to Custer County is February, whereas prices are at their highest in December. Keep clear of this month if you're counting your pennies.

Book with confidence

Expedia offers flights to Custer County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Custer County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Travel information

Custer County Flights Information

Airlines serving
United, Delta
Roundtrip price
from S$841
Custer County Flights Information
*Available to Expedia members.