Cheap flights from San Francisco to Denver from $34
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Denver departing on 5/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Francisco to Denver
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
United Airlines flights from San Francisco to Denver
Our best United Airlines deals on San Francisco to Denver flight tickets
American Airlines flights from San Francisco to Denver
Our best American Airlines deals on San Francisco to Denver flight tickets
See travel insights to Denver from
How to get the cheapest flight ticket from San Francisco to Denver
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Denver?
The cheapest month to fly to Denver from San Francisco is in September. Flight prices, which tend to average around $184, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until April to fly from San Francisco, when ticket prices are also cheap, with an average price of $189.
What is the cheapest day to depart on your flight to Denver?
The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $298. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $358.
What is the cheapest time of day to depart on your flight to Denver?
The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $238. Flights in the morning are often more expensive with an average ticket price of $371.
What is the cheapest San Francisco to Denver Intl flight route?
Fly from San Francisco to Denver Intl for the best San Francisco - Denver Intl flight prices
How far in advance should I book a flight to Denver?
You are more likely to see cheaper flights to Denver from San Francisco when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $214 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from San Francisco for as low as $166 on momondo.
What cabin class options are available on San Francisco to Denver Intl flights?
There are 4 cabin classes available to choose from on San Francisco to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from San Francisco to Denver Intl?
Frontier, Southwest, and United Airlines are the most popular carriers operating from San Francisco to Denver Intl
What airlines fly to Denver?
Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from San Francisco according to our data. Frontier is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Francisco to Denver on average per day?
As of February 2025, there are 38 flights per day flying from San Francisco to Denver. The most common time of day flights depart is 4:00PM, with 38% of flights taking off in the afternoon.
How many flights depart from San Francisco to Denver on average per week?
The number of flights available between San Francisco and Denver is 266 per week as of February 2025. The most frequent departure day is Thu, with 20% of weekly flights leaving on this day.
When to book flights from San Francisco to Denver
Cheap San Francisco to Denver (SFO to DEN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Denver
How far is San Francisco to Denver Intl by plane?
The distance between San Francisco and Denver Intl is about 946.3 mi. 2h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from San Francisco Airport to Denver Intl Airport?
Prices for flights from San Francisco Airport to Denver Intl Airport were last updated today.
How many operators does momondo search for flights from San Francisco Airport to Denver Intl Airport?
As of February 2025, there are 6 operators available to choose from for flights from San Francisco Airport to Denver Intl Airport.
How old do you have to be to fly from San Francisco Airport to Denver Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from San Francisco to Denver?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Francisco to Denver is Boeing 737 MAX 8 (12.80% of total bookings). The next most popular plane models are Boeing 737-900 (11.58%), Boeing 737-800 (11.16%), and Airbus A320neo (8.95%).
What is the most popular airline from San Francisco to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to Denver is Frontier (59% of total bookings). The next most popular airlines are United Airlines (35%), Southwest (5%), and Delta (0%).
Best airlines flying from San Francisco to Denver
Compare and see reviews for airlines that fly from San Francisco to Denver with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $58 | Free Cancellation | Rating 6.0 3,339 reviews | |||
| PriceFrom $116 | Free Cancellation | Rating 8.0 9,717 reviews | |||
| PriceFrom $157 | Free Cancellation | Rating 7.4 8,723 reviews | |||
| PriceFrom $171 | Free Cancellation | Rating 8.1 4,362 reviews | |||
| PriceFrom $195 | Free Cancellation | Rating 8.0 8,140 reviews | |||
| PriceFrom $198 | Free Cancellation | Rating 7.2 10,000 reviews |
Southwest Flights From San Francisco to Denver
Southwest operates around 28 flights from San Francisco to Denver every week. The average price of these flights found in the last 72 hours has been $281, but momondo users have found Southwest deals from San Francisco to Denver from as low as $171 round-trip. Southwest has been scored 8.1/10 in 4,362 reviews.
United Airlines Flights From San Francisco to Denver
$157 is the best United Airlines flight deal from San Francisco to Denver found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $334, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,723 user reviews) flies into Denver from San Francisco 45 times in an average week so prices can vary.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Francisco to Denver?
It is quick and easy to find San Francisco to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.
Can I find flights from San Francisco to Denver with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Denver from San Francisco with this policy.
How can momondo help me find flights from San Francisco to Denver?
Once you have performed a search for San Francisco to Denver flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from San Francisco to Denver right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of San Francisco to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.