Vuelos de United de San Francisco (SFO) a Sun Valley (SUN) desde $258

For any current SUN quarantine requirements and travel advice, visit the Covid-19 Travel Advisor. Look before you arrange your flight, so you don’t get caught out en route.

Your boarding pass should be able to tell you which terminal your United Airlines flight will be leaving from at San Francisco Intl. Airport (SFO). It might also be able to give you arrival details for SUN. If not, you might like to consult your airline before you fly.

Be prepared to make a stopover when traveling from SFO to SUN, as United Airlines doesn’t offer any direct flights on this route. While in transit, you might like to grab a newly published novel or a magazine from the airport bookstore to make the time go faster.

Watch a few TV episodes, listen to music through your headphones or just recline your seat and forget your worries. Whatever interests you, find a way to while away the 4 hours and 41 minutes that it takes to fly from San Francisco Airport to SUN with United Airlines.

The path is well traveled from San Francisco Airport to Friedman Memorial Airport. United Airlines links the two roughly 7 times weekly.

For more info about changing your flight to Friedman Memorial Airport (SUN), please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.