
Book Cheap United flight from San Francisco (SFO) to Denver (DEN) from CA $241
Find The Best Day to Book a Cheap United Flights From San Francisco to Denver
Cheapest United Flights from San Francisco (SFO) to Denver (DEN)
The cheapest flights to Denver Intl. found within the past 7 days were round trip and CA $241 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great United flight from SFO to DEN
To find a great deal on United flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying United San Francisco to Denver gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with United between San Francisco and Denver
United has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from San Francisco to Denver with United are May.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your United flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 227 |
| DEN | USA | Denver Intl. | 226 |
| IAH | USA | George Bush Intercontinental | 136 |
| IAD | USA | Washington Dulles Intl. | 100 |
| SFO | USA | San Francisco Intl. | 64 |
| LAX | USA | Los Angeles Intl. | 23 |
| EWR | USA | Liberty Intl. | 20 |
| FRA | DEU | Frankfurt Intl. | 19 |
| NRT | JPN | Narita Intl. | 19 |
| PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to Denver

The Westin Denver International Airport
The Westin never disappoints
Reviewed on Mar 23, 2026

Hyatt Place Peña Station/Denver Airport
When we checked in it was nice, quick and easy. We went to our room and put our stuff down before going down to get a drink. Room was spacious, comfortable, and clean. Got to the bar/restaurant area, and the poor bartender was alone with little help and constant customers incoming. All drinks were ...
Reviewed on Mar 23, 2026

Gaylord Rockies Resort & Convention Center
They have the most beautiful views and a wonderful pool and spa.
Reviewed on Mar 22, 2026
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