Find flights
When to book
FAQs

Cheap flights from Denver to San Diego

DEN — SAN
14 May — 21 May1
1 adult
Tue 14/5
Tue 21/5

Cheap flight deals from Denver to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 May 2024.

Popular in

July

Cheapest in

May

Average price

C$ 176

Round-trip from

C$ 426
High demand for flights, 25% potential price rise
Best time to find cheap flights, 29% potential price drop
Average for round-trip flights in May 2024
From Denver Intl to San Diego

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

Users have found that booking a flight from Denver to San Diego at least 39 days early can save you up to 77% on average compared to booking a flight this week. If booking 39 days before your flight isn’t an option for you, users have found flights from Denver to San Diego for as little as C$ 228 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 449 for flights departing within the next 3 days.

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

Our data shows that May tends to be the cheapest month to fly to San Diego from Denver. Users have commonly found prices around C$ 247 for the month, but tickets can be as low as C$ 67. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Denver to San Diego (DEN - SAN)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to San Diego as you normally would.

When is the best time to book a flight from Denver to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Denver to San Diego. Price data was last updated on 3 May 2024.
To ensure you get the cheapest price possible for a flight from Denver to San Diego, you should look to book at least 38 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

Average price of flights to San Diego by month

Plan your trip from Denver to San Diego by taking into account the cheapest months to travel. The average price of a one-way flight from Denver to San Diego is currently C$ 0 while a round-trip flight costs C$ 0. Price data was last updated on 5 May 2024.

Currently, September is the cheapest month in which you can book a flight from Denver to San Diego (average of C$ 310). Flying from Denver to San Diego in March is currently the most expensive (average of C$ 570). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

C$ 470

February

C$ 613

March

C$ 783

April

C$ 709

May

C$ 578

June

C$ 517

July

C$ 661

August

C$ 611

September

C$ 426

October

C$ 583

November

C$ 595

December

C$ 587

Temperature and rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average temperature and rainfall totals by month.

SAN

Temperature

14 - 22 °C

Related info for your journey

Find useful and relevant information for your journey from Denver to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What days are direct flights available from Denver to San Diego?

    Direct flights can be found on the following days: Sunday, Tuesday.

  • How many flights depart from Denver to San Diego on average per day?

    On average, you can expect to see 5 flights from Denver to San Diego a day.
    Early Morning (Midnight to 6am) - 20% of flight departures
    Evening (6pm - Midnight) - 80% of flight departures

  • What are the most reliable airlines from Denver to San Diego?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to San Diego on time: Frontier (88%), United Airlines (86%), Air Canada (83%).

  • What does DEN to SAN mean?

    This is defined as Denver Intl Airport (DEN) and San Diego Airport (SAN). Codes like San Diego Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Denver to San Diego that include extra baggage allowance?

    The amount of baggage you can bring on your Denver to San Diego flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Denver to San Diego with specific airlines?

    Yes, Cheapflights allows you to browse and filter Denver to San Diego flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Denver to San Diego that include hotel bookings?

    Yes. In addition to deals on Denver to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to San Diego.

  • Can I find deals for business class flights from Denver to San Diego?

    Yes. Cheapflights offers flight deals from Denver to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Denver to San Diego that allow pets onboard?

    Many airlines flying from Denver to San Diego offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Denver to San Diego?

    Yes, you can often find last-minute deals on Denver to San Diego flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to San Diego
See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Denver to San Diego

Discover the top airline that operate flights from Denver to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 441,849 searches. Data last updated 9 May 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 107AverageC$ 188FlexibilityNo cancel feeOn-time62%
Search Frontier flights

Search flights from Denver to San Diego by cabin class

Find flights from Denver to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Denver to San Diego

Find hourly flight availability from Denver to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 May 2024.
3%of flight departuresEarly morningMidnight to 6 am
30%of flight departuresMorning6 am to noon
43%of flight departuresAfternoonNoon to 6 pm
24%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Denver to San Diego

Explore weekly flight availability from Denver to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 9 May 2024.
Sunday18daily flights
Monday29daily flights
Tuesday22daily flights
Wednesday22daily flights
Thursday28daily flights
Friday28daily flights
Saturday22daily flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Denver to San Diego?

Cheapflights makes it easy to find Denver to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Denver to San Diego?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from Denver.

Can Cheapflights find flights from Denver to San Diego with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Denver to San Diego flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Denver to San Diego become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.