SAN - DEN

£43 Find Cheap Flights from San Diego to Denver

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Denver departing on 27/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Denver, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£43
Overall average: £96
Frontier
Tue 27/1Tue 3/2
SAN - DEN • Direct
Cheapest one-way flight
£44
Typical prices: £81-£149
United Airlines
Tue 17/3
SAN - DEN • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom on this route.
United's Priority Boarding helps secure carry-on space.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 31% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Diego to Denver (SAN-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Diego to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Diego to Denver

Tue, 27 Jan - Tue, 3 Feb
Frontier Logo
07:00 - 10:31
SAN
-
DEN
2h 31mdirect
Frontier Logo
21:44 - 23:31
DEN
-
SAN
2h 47mdirect
£43Frontier
Sat, 10 Jan - Sat, 17 Jan
United Airlines Logo
16:10 - 19:40
SAN
-
DEN
2h 30mdirect
United Airlines Logo
15:56 - 17:28
DEN
-
SAN
2h 32mdirect
£87United Airlines
Tue, 27 Jan - Tue, 3 Feb
Multiple Airlines Logo
08:16 - 14:19
SAN
-
DEN
5h 03m1 stop
Multiple Airlines Logo
21:44 - 23:31
DEN
-
SAN
2h 47mdirect
£88Multiple Airlines
Wed, 7 Jan - Sun, 11 Jan
Southwest Logo
08:35 - 12:00
SAN
-
DEN
2h 25mdirect
Southwest Logo
20:45 - 22:20
DEN
-
SAN
2h 35mdirect
£95Southwest
Fri, 9 Jan - Sun, 11 Jan
United Airlines Logo
13:00 - 16:31
SAN
-
DEN
2h 31mdirect
United Airlines Logo
21:05 - 22:37
DEN
-
SAN
2h 32mdirect
£102United Airlines
Sat, 10 Jan - Sat, 17 Jan
United Airlines Logo
16:10 - 19:40
SAN
-
DEN
2h 30mdirect
United Airlines Logo
17:50 - 23:05
DEN
-
SAN
6h 15m1 stop
£117United Airlines
Tue, 27 Jan - Tue, 3 Feb
American Airlines Logo
06:15 - 11:34
SAN
-
DEN
4h 19m1 stop
American Airlines Logo
07:50 - 11:40
DEN
-
SAN
4h 50m1 stop
£119American Airlines
Mon, 12 Jan - Thu, 15 Jan
United Airlines Logo
12:49 - 20:12
SAN
-
DEN
6h 23m1 stop
United Airlines Logo
21:05 - 22:37
DEN
-
SAN
2h 32mdirect
£125United Airlines
Thu, 12 Feb - Mon, 16 Feb
Southwest Logo
06:30 - 10:00
SAN
-
DEN
2h 30mdirect
Southwest Logo
06:35 - 08:20
DEN
-
SAN
2h 45mdirect
£140Southwest
Fri, 6 Feb - Sun, 8 Feb
Delta Logo
06:15 - 11:51
SAN
-
DEN
4h 36m1 stop
Delta Logo
06:14 - 09:57
DEN
-
SAN
4h 43m1 stop
£147Delta
Booking Insights

KAYAK's insights & trends for San Diego to Denver flights

Get data-powered insights and trends into flights from San Diego to Denver to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Diego to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Denver is January, where tickets cost £96 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is £187 and £185 respectively.

How far in advance should I book a flight from San Diego to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Denver, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from San Diego to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United offers Priority Boarding to Zone 2, ensuring overhead bin space for your carry-on.


United's Economy Plus seats offer up to six inches more legroom than standard economy.

Lufthansa

Lufthansa's Economy Flex allows free rebooking, ideal for flexible travel plans.


Lufthansa offers FlyNet Messaging for free to Miles & More members on short-haul flights.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has travelled to more than 50 countries across six continents.

Read more

Good to know - Cheap tickets from San Diego to Denver

Low seasonOctober
Cheapest flight£43
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from San Diego to Denver

When to book flights from San Diego to Denver

Are your dates flexible? Find out the best times to travel from San Diego to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Denver

  • Can I book a nonstop flight from San Diego to Denver?

    Frontier Airlines offers nonstop flights from San Diego International Airport to Denver International Airport in Denver. Other airlines on this route include United Airlines and Southwest Airlines, which offer a fast way to travel from San Diego to Denver.

  • Does San Diego International Airport offer services for guests with mobility impairments?

    The airport offers different accessibility services located throughout the airport to assist travelers with mobility impairments. Services under this category include visual paging monitors, TDD telephones, and a courtesy cart run by Volunteer Airport Ambassadors, located conveniently throughout the airport. Also, you’ll find the Harbor Police Officers, who assist travelers with special needs.

  • Are there designated smoking areas in San Diego International Airport?

    San Diego International Airport is a smoke-free facility. You’re only permitted to smoke in a designated area away from the terminals. You can use ashtrays located in all smoking areas.

  • What is the best means of transportation from Denver International Airport to my destination?

    The SkyRide bus and A Line rail system offer affordable means of transport from Denver International Airport to downtown Denver and nearby towns. You can also use an Uber from the airport or travel via the shuttle service to nearby cities like Welby, Aurora, Federal Heights, and Commerce City. If your friends or family will pick you up, make sure they can find a good parking spot as curbside parking is prohibited.

  • What guest amenities does Denver International Airport offer?

    Guests can use different amenities and facilities when they arrive at the airport. These include free Wi-Fi, religious facilities open 24h a day, and pet relief areas near gates A, B, and C. If you want to nurse your child, there are three nursing rooms located at each concourse.

  • What is the cheapest flight from San Diego to Denver?

    In the last 3 days, the lowest price for a flight from San Diego to Denver was £44 for a one-way ticket and £43 for a return.

  • Which airlines offer Wi-Fi service onboard planes from San Diego to Denver?

    All the following airlines offer inflight Wi-Fi service on the San Diego to Denver flight route: Alaska Airlines, Delta, JetBlue, Hawaiian Airlines, American Airlines, United Airlines, and Lufthansa.

  • Which aircraft models fly most regularly from San Diego to Denver?

    The Airbus A321neo is the aircraft model that flies most regularly on the San Diego to Denver flight route.

  • On which days can I fly direct from San Diego to Denver?

    There are direct flights from San Diego to Denver on a daily basis.

  • How does KAYAK find such low prices on flights from San Diego to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Denver with an airline and back to San Diego with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Diego to Denver

  • Most guests traveling from San Diego will use San Diego International Airport (SAN). While McClellan–Palomar Airport (CLD) is closer, it’s not a major airport.
  • To access San Diego International Airport, you can use a bicycle. The airport offers free bicycle lockers, but requires a $25 deposit, which is refundable. Also, you can catch an Uber to the airport or use car rental services.
  • If you’re using your car to get to San Diego International Airport, there’s a parking service, which costs approximately $13 per day, and includes a shuttle service to San Diego.
  • For arrivals at Denver, you can use Denver International Airport (DEN). From the airport, you can access downtown Denver via train, car rental, Uber, or shuttle service.
  • When you arrive in Denver, you’ll find hotels near Denver International Airport. Most hotels are about 10 miles away and have a shuttle service to help you get there.
  • Denver International Airport also supports sustainability by providing water bottle filling stations in all three concourses. Each concourse has four bottle filling stations.
  • Throughout the airport, you can use free Wi-Fi. You simply need to enable your wireless connection and check for “Den Airport Free Wi-Fi.” Click connect to the network as there is no password needed.

Prefer to fly direct from San Diego to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Diego to Denver Intl.
Find which airlines fly direct from San Diego Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

San Diego to Denver Intl

Monday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Tuesday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Wednesday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Thursday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Friday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Saturday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Sunday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

See more direct flights

Direct returns

Denver Intl to San Diego

Monday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Tuesday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Wednesday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Thursday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Friday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Saturday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

Sunday

Alaska Airlines, Frontier, Southwest, +1 more

Alaska Airlines, Frontier, +2 more

See more direct flights

Everything you need to know for your flight from San Diego to Denver

Information on your arrival and departure airports

Compare transportation modes for San Diego to Denver

Transportation modeAverage priceAverage duration
Flights£6682h 18m
Buses£22829h 20m