$109 Find Cheap United Airlines Flights from San Francisco to Denver

When to Book Flights with United Airlines from San Francisco to Denver

• How far in advance should I book tickets for a flight with United Airlines from San Francisco to Denver?

  Generally, when trying to get a below average price for your ticket, try to book around 10 days before departure. For the cheapest possible price, our data suggests booking 90 days before departure.

• Is United Airlines the cheapest airline to fly with from San Francisco to Denver?

  With an average price of $336 return, United Airlines is not the cheapest airline to fly from San Francisco to Denver with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $159 on average.

• What is the cheapest United Airlines flight from San Francisco to Denver?

  In the last 3 days, the lowest price for a flight with United Airlines from San Francisco to Denver was $114 for a return flight and $71 for a one-way flight.

• Does United Airlines fly direct to Denver from San Francisco?

  Yes, United Airlines does offer direct flights for the route, with around 64 flights per week.

• What’s the cheapest day of the week to fly from San Francisco to Denver with United Airlines?

  On average, the cheapest day of the week to fly from San Francisco to Denver with United Airlines is Tuesday, when prices are around $78. The most expensive day is generally Wednesday, where the average price is around $108.

• What’s the cheapest month to fly from San Francisco to Denver with United Airlines?

  The cheapest month for United Airlines flights to Denver from San Francisco is generally September, where plane tickets cost $168 on average. If possible, try to avoid the most expensive months of November and December, where tickets cost $198 and $208 respectively.