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

15 flights are operational daily from Denver to San Diego as of September 2026. The most popular departure time for this route is 13:00, with 36% of flights per day taking off in the afternoon.

What is the cheapest airline that flies from Denver Intl to San Diego?

United Airlines, Alaska Airlines, and Southwest are the most popular carriers operating from Denver Intl to San Diego

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Denver to San Diego flights?

According to our data, Alaska Airlines have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

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

As of September 2026, there are 107 flights per week flying from Denver to San Diego. The most common day of the week flights depart is Mon, with 30% of flights taking off on this day.

How often are flights from Denver to San Diego delayed?

Historically, on average around 20% of flights between Denver and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 130 minutes.

What is the most punctual flight time for Denver to San Diego flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Denver Intl Airport to San Diego Airport?

Prices for flights from Denver Intl Airport to San Diego Airport are updated daily.

How old do you have to be to fly from Denver Intl Airport to San Diego 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

R1 606 Cheap Flights from Denver to San Diego in 2026/27

Find the cheapest flights from Denver to San Diego

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

19:10 - 20:39DEN Denver Intl-SAN San Diego

2h 29mdirect

6:45 - 10:19SAN San Diego-DEN Denver Intl

2h 34mdirect

R3 196United Airlines

Sat, Oct 24 - Tue, Oct 27

7:40 - 9:14DEN Denver Intl-SAN San Diego

2h 34mdirect

19:10 - 22:40SAN San Diego-DEN Denver Intl

2h 30mdirect

R3 261United Airlines

Tue, Dec 22 - Tue, Dec 29

7:40 - 9:14DEN Denver Intl-SAN San Diego

2h 34mdirect

16:45 - 22:38SAN San Diego-DEN Denver Intl

4h 53m1 stop Los Angeles Los Angeles

R3 424United Airlines

Tue, Dec 22 - Tue, Dec 29

9:45 - 11:26DEN Denver Intl-SAN San Diego

2h 41mdirect

14:33 - 18:01SAN San Diego-DEN Denver Intl

2h 28mdirect

R3 440Alaska Airlines

Wed, Oct 21 - Wed, Oct 21

18:59 - 20:34DEN Denver Intl-SAN San Diego

2h 35mdirect

8:00 - 11:32SAN San Diego-DEN Denver Intl

2h 32mdirect

R3 521Alaska Airlines

Fri, Oct 23 - Sun, Oct 25

15:52 - 17:21DEN Denver Intl-SAN San Diego

2h 29mdirect

16:28 - 19:58SAN San Diego-DEN Denver Intl

2h 30mdirect

R3 683United Airlines

Tue, Dec 29 - Fri, Jan 1

14:50 - 18:30DEN Denver Intl-SAN San Diego

4h 40m1 stop Oakland

16:00 - 20:50SAN San Diego-DEN Denver Intl

3h 50m1 stop Phoenix Sky Harbor Intl

R3 699Southwest

Sat, Jan 9 - Wed, Jan 13

13:45 - 15:16DEN Denver Intl-SAN San Diego

2h 31mdirect

18:39 - 22:15SAN San Diego-DEN Denver Intl

2h 36mdirect

R3 764Alaska Airlines

Thu, Jan 7 - Thu, Jan 7

13:45 - 15:16DEN Denver Intl-SAN San Diego

2h 31mdirect

18:39 - 22:15SAN San Diego-DEN Denver Intl

2h 36mdirect

R3 781Alaska Airlines

Fri, Jan 8 - Mon, Jan 25

18:45 - 22:43DEN Denver Intl-SAN San Diego

4h 58m1 stop Los Angeles Los Angeles

6:15 - 12:03SAN San Diego-DEN Denver Intl

4h 48m1 stop Salt Lake City

R3 846Delta

Sat, Nov 7 - Sat, Nov 14

Cheap last-minute flights

Enter your travel dates to find the best prices.

15:40 - 17:05DEN Denver Intl-SAN San Diego

2h 25mdirect

7:00 - 10:33SAN San Diego-DEN Denver Intl

2h 33mdirect

R7 415United Airlines

Fri, Sep 25 - Sun, Sep 27

11:29 - 12:55DEN Denver Intl-SAN San Diego

2h 26mdirect

7:00 - 10:33SAN San Diego-DEN Denver Intl

2h 33mdirect

R7 431United Airlines

Sat, Sep 26 - Tue, Sep 29

19:25 - 0:31DEN Denver Intl-SAN San Diego

6h 06m1 stop San Francisco

8:45 - 12:17SAN San Diego-DEN Denver Intl

2h 32mdirect

R7 513United Airlines

Fri, Sep 25 - Sun, Sep 27

19:25 - 0:31DEN Denver Intl-SAN San Diego

6h 06m1 stop San Francisco

15:56 - 23:23SAN San Diego-DEN Denver Intl

6h 27m1 stop San Francisco

R7 594United Airlines

Sat, Sep 26 - Tue, Oct 6

19:25 - 0:31DEN Denver Intl-SAN San Diego

6h 06m1 stop San Francisco

6:15 - 12:14SAN San Diego-DEN Denver Intl

4h 59m1 stop Los Angeles Los Angeles

R7 659United Airlines

Fri, Sep 25 - Sun, Sep 27

13:35 - 18:55DEN Denver Intl-SAN San Diego

6h 20m2 stops Boise Air Term. Gowen Fld Sacramento Intl

10:40 - 16:15SAN San Diego-DEN Denver Intl

4h 35m1 stop Boise Air Term. Gowen Fld

R8 567Southwest

Sat, Sep 26 - Sat, Oct 3

5:30 - 8:41DEN Denver Intl-SAN San Diego

4h 11m1 stop Salt Lake City

17:01 - 22:41SAN San Diego-DEN Denver Intl

4h 40m1 stop Salt Lake City

R8 632Delta

Mon, Sep 28 - Mon, Oct 5

6:20 - 7:50DEN Denver Intl-SAN San Diego

2h 30mdirect

15:51 - 19:26SAN San Diego-DEN Denver Intl

2h 35mdirect

R9 135Alaska Airlines

Mon, Sep 28 - Wed, Sep 30

12:17 - 18:16DEN Denver Intl-SAN San Diego

6h 59m1 stop Phoenix Sky Harbor Intl

6:20 - 11:27SAN San Diego-DEN Denver Intl

4h 07m1 stop Phoenix Sky Harbor Intl

R9 281American Airlines

Mon, Sep 28 - Wed, Sep 30

16:10 - 17:35DEN Denver Intl-SAN San Diego

2h 25mdirect

8:30 - 14:00SAN San Diego-DEN Denver Intl

4h 30m1 stop Reno

R9 314Southwest

Mon, Sep 28 - Wed, Sep 30

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Delta flights from Denver to San Diego

Our best Delta deals on Denver to San Diego flight tickets

Delta

Nov 7

DEN18:45Denver Intl

4h 58m

1 stop

SAN22:43San Diego

Nov 18

SAN15:59San Diego

7h 00m

1 stop

DEN23:59Denver Intl

R3 846

Delta

Nov 7

DEN18:00Denver Intl

5h 40m

1 stop

SAN22:40San Diego

Nov 15

SAN15:59San Diego

7h 00m

1 stop

DEN23:59Denver Intl

R4 008

Delta

Nov 8

DEN5:25Denver Intl

4h 22m

1 stop

SAN8:47San Diego

Nov 15

SAN6:30San Diego

4h 33m

1 stop

DEN12:03Denver Intl

R4 170

Alaska Airlines flights from Denver to San Diego

Our best Alaska Airlines deals on Denver to San Diego flight tickets

Alaska Airlines

Oct 21

DEN9:45Denver Intl

2h 41m

SAN11:26San Diego

Oct 21

SAN14:33San Diego

2h 28m

DEN18:01Denver Intl

R3 440

Alaska Airlines

Oct 23

DEN18:59Denver Intl

2h 35m

SAN20:34San Diego

Oct 25

SAN8:00San Diego

2h 32m

DEN11:32Denver Intl

R3 521

Alaska Airlines

Jan 7

DEN13:45Denver Intl

2h 31m

SAN15:16San Diego

Jan 7

SAN18:39San Diego

2h 36m

DEN22:15Denver Intl

R3 764

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Sat 24/10

19:10-20:39

Nonstop2h 29m

San Diego

Tue 27/10

6:45-10:19

Nonstop2h 34m

R3 196

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Tue 22/12

7:40-9:14

Nonstop2h 34m

San Diego

Tue 29/12

19:10-22:40

Nonstop2h 30m

R3 261

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Tue 22/12

7:40-9:14

Nonstop2h 34m

San Diego

Tue 29/12

16:45-22:38

1 stop4h 53m

R3 424

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Wed 21/10

9:45-11:26

Nonstop2h 41m

San Diego

Wed 21/10

14:33-18:01

Nonstop2h 28m

R3 440

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Fri 23/10

18:59-20:34

Nonstop2h 35m

San Diego

Sun 25/10

8:00-11:32

Nonstop2h 32m

R3 521

Fastest return journey

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Tue 29/12

15:52-17:21

Nonstop2h 29m

San Diego

Fri 1/1

16:28-19:58

Nonstop2h 30m

R3 683

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Sat 9/1

14:50-18:30

1 stop4h 40m

San Diego

Wed 13/1

16:00-20:50

1 stop3h 50m

R3 699

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Thu 7/1

13:45-15:16

Nonstop2h 31m

San Diego

Thu 7/1

18:39-22:15

Nonstop2h 36m

R3 764

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Fri 8/1

13:45-15:16

Nonstop2h 31m

San Diego

Mon 25/1

18:39-22:15

Nonstop2h 36m

R3 781

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Sat 7/11

18:45-22:43

1 stop4h 58m

San Diego

Sat 14/11

6:15-12:03

1 stop4h 48m

R3 846

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to San Diego

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

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between Denver and San Diego?

Prices are currently typical for flights on this route.

Typical prices usually range from R2 215 to R4 754.
The lowest price recently found on this route was R3 196.

What is the cheapest month to fly to San Diego?

The month of February is, on average, the cheapest month to fly to San Diego from Denver, with most prices found around R1 947. The month of January is another great option to travel to San Diego, with average flight prices from Denver averaging around R2 158.

What is the cheapest Denver Intl to San Diego flight route?

Fly from Denver Intl to San Diego for the best Denver Intl - San Diego flight prices

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

You are more likely to see cheaper flights to San Diego from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around R3 253 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Denver for as low as R2 515 on momondo.

What cabin class options are available on Denver to San Diego flights?

There is only 1 cabin class available to choose from on Denver to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Denver to San Diego flight prices changed over time?

As of September 2026, prices for Denver to San Diego flights are approximately 75% more expensive when compared to flights at the same time last year.

When to book flights from Denver to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to San Diego according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Denver to San Diego (DEN to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to San Diego

Best price found	R1 606
Direct flights	Every day
Airports in San Diego	1 airport

The best one-way flight to San Diego from Denver in the past 72 hours is R1 606. The best return flight deal from Denver to San Diego found on momondo in the last 72 hours is R3 196.

Direct flights go from Denver to San Diego every day.

There is 1 airport in San Diego. From Denver there are direct flights to San Diego (SAN).

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Frequently asked questions about flying from Denver to San Diego

How far is Denver Intl to San Diego by plane?
A flight from Denver Intl to San Diego will travel around 1339,5 km.
When did momondo last update prices for flights from Denver Intl Airport to San Diego Airport?
Prices for flights from Denver Intl Airport to San Diego Airport are updated daily.
How old do you have to be to fly from Denver Intl Airport to San Diego 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Denver to San Diego?
momondo data reveals that the most frequently booked plane model on the route from Denver to San Diego is Boeing 737-800 Passenger/BBJ2 (winglets), representing 16,93% of all bookings. The subsequent popular models are Airbus A321neo at 15,14%, Boeing 737 MAX 8 at 12,67%, and Airbus A320neo at 11,22%.

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Why use momondo?

Why should I use momondo to find a flight deal from Denver to San Diego?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to San Diego for you.

Can I find flights from Denver to San Diego with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Diego from Denver which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Denver to San Diego?

momondo provides multiple filters to help you find the best flight to San Diego from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Denver to San Diego right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Denver to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.