$118 Cheap Flights from San Francisco (SFO) to Sun Valley (SUN)

View $118 flight on Fri, Jan 9, 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Sun Valley, ID (SUN-Friedman Memorial)

Cheap Flights from San Francisco to Sun Valley (SFO-SUN)

Prices were available within the past 7 days and start at $118 for one-way flights and $190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Jan 5 - Tue, Jan 13
SFO
San Francisco
SUN
Sun Valley
$190 Roundtrip, found 5 days ago
$190
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Jan 5 from San Francisco to Sun Valley, returning Tue, Jan 13, priced at $190 found 5 days ago
Delta
Tue, Jan 6 - Tue, Jan 13
SFO
San Francisco
SUN
Sun Valley
$196 Roundtrip, found 5 days ago
$196
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jan 6 from San Francisco to Sun Valley, returning Tue, Jan 13, priced at $196 found 5 days ago
Delta
Sun, Feb 8 - Sun, Feb 15
SFO
San Francisco
SUN
Sun Valley
$212 Roundtrip, found 3 days ago
$212
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Feb 8 from San Francisco to Sun Valley, returning Sun, Feb 15, priced at $212 found 3 days ago
Delta
Fri, Feb 20 - Sat, Mar 7
SFO
San Francisco
SUN
Sun Valley
$225 Roundtrip, found 1 hour ago
$225
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Feb 20 from San Francisco to Sun Valley, returning Sat, Mar 7, priced at $225 found 1 hour ago
Delta
Fri, Feb 20 - Tue, Mar 3
SFO
San Francisco
SUN
Sun Valley
$230 Roundtrip, found 1 hour ago
$230
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Feb 20 from San Francisco to Sun Valley, returning Tue, Mar 3, priced at $230 found 1 hour ago
Delta
Tue, Feb 17 - Fri, Mar 6
SFO
San Francisco
SUN
Sun Valley
$232 Roundtrip, found 1 hour ago
$232
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Feb 17 from San Francisco to Sun Valley, returning Fri, Mar 6, priced at $232 found 1 hour ago
Alaska Airlines
Sun, Feb 8 - Sun, Feb 15
SFO
San Francisco
SUN
Sun Valley
$235 Roundtrip, found 3 days ago
$235
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Feb 8 from San Francisco to Sun Valley, returning Sun, Feb 15, priced at $235 found 3 days ago
Hawaiian Airlines
Sat, Feb 7 - Sun, Feb 15
SFO
San Francisco
SUN
Sun Valley
$280 Roundtrip, found 6 days ago
$280
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Sat, Feb 7 from San Francisco to Sun Valley, returning Sun, Feb 15, priced at $280 found 6 days ago
United
Sat, Jan 10 - Tue, Jan 13
SFO
San Francisco
SUN
Sun Valley
$369 Roundtrip, found 1 day ago
$369
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jan 10 from San Francisco to Sun Valley, returning Tue, Jan 13, priced at $369 found 1 day ago
American Airlines
Sat, Jan 31 - Mon, Feb 2
SFO
San Francisco
SUN
Sun Valley
$444 Roundtrip, found 5 hours ago
$444
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Sat, Jan 31 from San Francisco to Sun Valley, returning Mon, Feb 2, priced at $444 found 5 hours ago

Find the cheapest month to fly from San Francisco (SFO) to Sun Valley (SUN)

May is typically the cheapest month to fly

From $188 - $830 per traveler.

Alternative airports near Sun Valley

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Friedman Memorial SUN. Cheapest and Closest option available. Average driving time to city center is 23 minutes. Flights from $429
SUN
Friedman Memorial
CheapestClosest
Average driving time to city center23 min
Flights from $429
Flights from San Francisco (SFO) to Sun Valley (SUN)
Origin airport
San Francisco Intl.
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$190
Distance
587 mi
Average flight time
2 hours 58 mins

San Francisco to Sun Valley Flights

The cheapest times to fly from San Francisco to Sun Valley

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Sun Valley are during the month of January. You can find some of the cheapest flights from San Francisco to Sun Valley with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Sun Valley

Sunday is one of the best days to book for cheap flights from San Francisco to Sun Valley: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Sun Valley

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Sun Valley in 2026. You can also book with separate airlines for your outbound and return journeys, from $118 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Sun Valley flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Sun Valley airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN) cost?
Grab a cheap one-way flight from $118 or cheap return flight from $190 from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
The cheapest month to fly from SFO to SUN is January, when demand is low. Off-peak months are generally when you'll find lower airfares between these airports.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
When setting off from San Francisco Intl. Airport (SFO), you can jump on a direct flight to Friedman Memorial Airport (SUN) with United Airlines.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
To find the cheapest airline flying from SFO to SUN, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
On average, only 1 direct flight departs daily from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN). Need other options? Use our filter tool to find flights with layovers and explore a new city along the way.
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
More travelers fly between SFO and SUN at 8 AM than at any other point in the day. Looking for a quieter experience? Travel outside of rush hours and you could save on your fare as well.
What day of the week has the most flights from SFO to SUN?
Fly on a Saturday if you're after the best selection of flights from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN).
What is the earliest flight from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
San Francisco Intl. Airport (SFO)'s first flight to Friedman Memorial Airport (SUN) leaves at approximately 8:25AM UTC-8. With a total flight time of 2h 8m, you'll arrive at around 11:33AM UTC-7.
How long does it take to fly from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
Flights from SFO to SUN have an average travel time of 2 hours and 7 minutes. The total distance between the two is 590 mi.
What airline has the least delays from SFO to SUN?
United Airlines has the best performance for on-time direct flights from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN), with an on-time score of 86%. Use the Expedia App to view your flight status before you go and get real-time updates about any trip changes.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
To avoid potential delays on the San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN) route, travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Sun Valley from San Francisco Intl. Airport (SFO)?
Check out your flight options from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN). This is the only airport in Sun Valley you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN) last-minute?
Waiting until just before your trip to book a flight from SFO to SUN often results in higher prices. While you might find some last-minute offers, they're not always guaranteed. Keep your travel schedule open for the best chance of getting a bargain.
Is it cheaper to book a SFO to SUN flight and hotel package?
Compared with arranging flights and hotels separately, booking a SFO to SUN flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of planning your trip. Just pick your flights and select from our extensive range of stays, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Friedman Memorial Airport (SUN)?
You can usually reschedule or cancel your SFO to SUN flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.