Cheap flights from Denver to San Diego (DEN - SAN) from $38

This is the cheapest one-way flight price, found on 12/7. Prices may vary by date and flight preferences.
DEN — SAN
dic. 12 — dic. 191

The best prices from Denver Intl to San Diego are usually found in January or September, booked 35 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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How to find the cheapest flight from Denver (DEN) to San Diego (SAN)

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 diciembre 7, 2023.

Popular in

March

Cheapest in

January

Round-trip from

$271

One-way from

$72
High demand for flights, 25% potential price rise
Best time to find cheap flights, 36% potential price drop
From Denver Intl to San Diego
One-way flight from Denver Intl to San Diego

What is the cheapest day to fly round-trip from Denver to San Diego?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 37% when planning your travel around this day of the week.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 34 days in advance, which can save you up to 33% on flights from Denver to San Diego compared to booking the week you need them. Waiting 34 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $192. For sooner than that we have options available in the next 3 days from $306.

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

January is one of the best times of the year to fly to San Diego from Denver. Prices for January average $201 per person but you can even find prices for as low as $48. The most expensive prices can be found in the month of March. Opting for a January flight can save you 33% on your journey compared to booking in March

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

When flying from Denver to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight at noon.

Cheap Spirit Airlines flights from Denver to San Diego

Explore cheap flight options specifically provided by Spirit Airlines for the route between Denver and San Diego. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated diciembre 7, 2023.
Take a peek at the cheapest Spirit Airlines flights we've detected traveling from Denver to San Diego. Be sure to come back soon if the deals available don't appeal to you at this time.
  • If you’re traveling from Denver to San Diego, one of the more common airlines traveling that route is Spirit Airlines. Denver to San Diego flights are typically 28% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $310.31 RT. The cheapest Spirit Airlines flight found for this route was $119. When traveling from Denver to San Diego on Spirit Airlines, the most popular airport to depart from is Denver Intl Airport and the most popular airport to arrive at is San Diego Airport. When flying from Denver to San Diego, Spirit Airlines flights are 7% more popular than any other airline flying that same route.

Cheap Frontier flights from Denver to San Diego

Explore cheap flight options specifically provided by Frontier for the route between Denver and San Diego. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated diciembre 7, 2023.
Take a gander at the lowest prices we've found on Frontier flights from Denver to San Diego. Deals are refreshing constantly so come back soon for more options.
  • One of the most popular airlines traveling from Denver to San Diego is Frontier. Flights from Frontier traveling this route typically cost $165.51 RT. This price is typically 23% cheaper than other airlines that offer Denver to San Diego flights. When booking this route, the cheapest RT price found was $57. Denver Intl Airport is the most common Denver airport to take off from when flying to San Diego. San Diego Airport is the most popular arrival airport in San Diego. When flying from Denver to San Diego, Frontier flights are -16% more popular than any other airline flying that same route.

Cheap Denver to San Diego flights in December & January 2023

Find cheap flight options from Denver to San Diego specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Prices were last updated on diciembre 7, 2023.
The lowest fares we've come across on flights traveling from Denver to San Diego in December and January 2023. More deals are always being added, so be sure to check back regularly.

Denver to San Diego 2023 flight deals

Discover exclusive flight deals for travel between Denver and San Diego in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated diciembre 7, 2023.
The lowest fares we've come across on flights traveling from Denver to San Diego in December and January 2023. More deals are always being added, so be sure to check back regularly.

Non-stop flights to San Diego from Denver

Discover non-stop flight options from Denver to San Diego. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated diciembre 7, 2023.
Take a look at some of the direct flights traveling from Denver to San Diego in the near future. Select from other flights from Denver to San Diego by using the search form above.

Denver to San Diego flights leaving soon

Find last-minute flight options from Denver to San Diego for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated diciembre 7, 2023.
Consider one of these great deals we found on last-minute flights from Denver to San Diego. Users should examine the flight details to ensure there are no surprises.

One-way flights to San Diego from Denver

Search for one-way flight options from Denver to San Diego. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated diciembre 7, 2023.
Take a look at some of the best available options we've come across on one-way flights from Denver to San Diego. Those needing a return flight from Denver to San Diego can use the search form above.

Find flights from Denver to San Diego within your budget

Customize your flight search to find flights from Denver to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated diciembre 7, 2023.

Fly from

Any airport

Fly to

Any airport

Budget

$38 - $197

Route

Depart

Return

Price

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

mar. 2/6

Nonstop2h 33m

San Diego

mié. 2/14

Nonstop2h 28m

$38

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

mar. 2/6

1 stop5h 11m

San Diego

mié. 2/14

Nonstop2h 28m

$58

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

jue. 2/8

Nonstop2h 32m

San Diego

mié. 2/14

Nonstop2h 28m

$68

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

mié. 1/10

1 stop7h 07m

San Diego

mar. 1/16

1 stop6h 04m

$75

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

mar. 1/9

1 stop7h 35m

San Diego

sáb. 1/13

Nonstop2h 33m

$78

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

sáb. 1/6

1 stop5h 26m

San Diego

lun. 1/8

1 stop4h 44m

$104

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

mar. 12/19

1 stop7h 20m

San Diego

dom. 12/31

1 stop6h 26m

$116

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

dom. 12/17

1 stop15h 20m

San Diego

mar. 12/19

1 stop7h 29m

$137

Denver IntlSan Diego

DEN - SAN

DENSAN

Denver Intl

mié. 4/17

1 stop5h 43m

San Diego

mar. 4/23

1 stop4h 54m

$197

Flights are sorted by cheapest first

Deals found on 12/7

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 44.11 USD while a round-trip flight costs 96.78 USD. Price data was last updated on December 3, 2023.

Currently, January is the cheapest month in which you can book a flight from Denver to San Diego (average of $271). Flying from Denver to San Diego in June is currently the most expensive (average of $384). 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

$271

February

$288

March

$340

April

$358

May

$345

June

$384

July

$368

August

$317

September

$303

October

$288

November

$336

December

$304

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated diciembre 7, 2023.
To help decide which airline to fly from Denver to San Diego, see what other customers have to say about Spirit Airlines, Frontier and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Overall

8.1

Crew

8.6

Entertainment

7.2

Comfort

8.0

Reviews

1 / 10

Excellent price of flight. Prompt takeoff, early arrival. Was kept informed of progress of flight during travel. Courteous, friendly staff.

8.1
Very good
1,404 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Overall

8.1

Crew

8.6

Entertainment

7.2

Comfort

8.0

Reviews

1 / 10

Excellent price of flight. Prompt takeoff, early arrival. Was kept informed of progress of flight during travel. Courteous, friendly staff.

7.9
Good
3,035 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Overall

8.1

Crew

8.6

Entertainment

7.2

Comfort

8.0

Reviews

1 / 10

Excellent price of flight. Prompt takeoff, early arrival. Was kept informed of progress of flight during travel. Courteous, friendly staff.

7.4
Good
1,902 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Overall

8.1

Crew

8.6

Entertainment

7.2

Comfort

8.0

Reviews

1 / 10

Excellent price of flight. Prompt takeoff, early arrival. Was kept informed of progress of flight during travel. Courteous, friendly staff.

7.2
Good
2,645 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Overall

8.1

Crew

8.6

Entertainment

7.2

Comfort

8.0

Reviews

1 / 10

Excellent price of flight. Prompt takeoff, early arrival. Was kept informed of progress of flight during travel. Courteous, friendly staff.

6.3
Okay
1,498 reviews
8.1
Very good
1,404 reviews

Food

7.2

Boarding

8.3

Overall

8.1

Crew

8.6

Entertainment

7.2

Comfort

8.0

Reviews

1 / 10

Excellent price of flight. Prompt takeoff, early arrival. Was kept informed of progress of flight during travel. Courteous, friendly staff.

Average temperature in San Diego by month

Plan your trip to San Diego by selecting the month that matches your preferred temperature. August sees the highest average temperature while January sees the lowest average temperature. Temperature data was last updated on December 3, 2023.

SAN

Temperature

57.2 - 71.6 °F

Average rainfall in San Diego by month

Keep in mind the precipitation totals in San Diego when planning your trip. San Diego sees an average of 0.87 precipitation per year with the most occurring in February. Precipitation data was last updated on December 3, 2023.

SAN

Rainfall

0 - 2.3 inches

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 airports do I use to fly from Denver to San Diego?

San Diego is the airport most travelers will use when flying to San Diego from Denver Intl. Booking flights from Denver Intl (DEN) to San Diego (SAN) should be relatively easy as there are 24 daily flights to San Diego from 5 different airlines. 2h 17m is how long a flight from Denver to San Diego will take if you book a nonstop flight.

Can I find flights from Denver to San Diego for under $100 on Cheapflights?

Yes, there are multiple flights from Denver to San Diego for under $100. The cheapest flight booked recently is on Frontier for just $38, but on average you can expect to pay $81.

Are there nonstop flights from Denver to San Diego for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Denver to San Diego under $100. A good price for a nonstop flight from Denver to San Diego is less than $117.

Are there last-minute flights available from Denver to San Diego for under $100?

There are currently 20+ open flights from Denver to San Diego within the next 7 days for less than $100.

What days are nonstop flights available from Denver to San Diego?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

How popular is this Denver to San Diego flight route?

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

Travelers can expect 9 flights from Denver to San Diego on average per day.
Morning (6am - Noon) - 67% of flight departures
Evening (6pm - Midnight) - 33% of flight departures

How long is the flight from Denver to San Diego?

For as low as $38, Frontier can have you in San Diego from Denver in 2h 33m. The distance from Denver to San Diego is about 856 mi. All flights are typically nonstop.

What is the cheapest airline to fly from Denver to San Diego round-trip?

According to our current data, Frontier ($38), offers the cheapest pricing from Denver to San Diego. Frontier is 81% cheaper than the average price of flights available within the next 90 days to this destination.

What are the most popular airlines that fly from Denver to San Diego?

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

The top 3 most reliable airlines when flying from Denver to San Diego are United Airlines (93%), Air Canada (92%) and Lufthansa (89%).

What are the cheapest flights from Denver to San Diego?

Looking for the cheapest flight from Denver to San Diego? While on average our users pay $393, our data indicates the cheapest price to be $36. The most popular route (Denver Intl - San Diego), is priced around $78.

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.

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.

Fly from Denver to San Diego on these airlines
Choose from the following airlines for your flight from Denver to San Diego. Flights are based on user searches made on Cheapflights and were last updated on diciembre 7, 2023.

Top 5 airlines flying from Denver to San Diego

Discover the top 5 airlines 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 2,618,515 searches. Data last updated diciembre 7, 2023.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$166FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$77Average$144FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$119Average$310FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$196Average$364FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$198Average$324FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights to San Diego by cabin 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 diciembre 7, 2023.
4%of flight departuresEarly morningMidnight to 6 am
47%of flight departuresMorning6 am to noon
25%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 diciembre 7, 2023.
Sunday18daily flights
Monday29daily flights
Tuesday22daily flights
Wednesday22daily flights
Thursday28daily flights
Friday28daily flights
Saturday22daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

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?

When you search for this flight from Denver to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Denver to San Diego.

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

Yes, we can. To see specific flights from Denver to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from Denver to San Diego and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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