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

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The best prices from Denver International to San Diego are usually found in August or January, booked 15 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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

All the information you need to plan the best DEN to SAN flight in 2021: compare Denver International to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
DEN - SAN
Price
$136 - $233
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches

Popular in

December

High demand for flights, 23% potential price rise

Cheapest in

August

Best time to find cheap flights, 25% potential price drop

Round-trip from

$136

From Denver International to San Diego

One-way from

$49

One-way flight from Denver International to San Diego

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Denver International to San Diego?

Flights from Denver International to San Diego are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Diego.

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

Users have found that booking a flight from Denver International to San Diego at least 17 days early can save you up to 27% on average compared to booking a flight this week. If booking 17 days before your flight isn’t an option for you, users have found flights from Denver International to San Diego for as little as $73 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 $98 for flights departing within the next 3 days.

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

July is one of the best times of the year to fly to San Diego from Denver International. Prices for July average $80 per person but you can even find prices for as low as $44. The most expensive prices can be found in the month of December. Opting for a July flight can save you 33% on your journey compared to booking in July

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

It’s optimal to fly from Denver International to San Diego in the morning. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight at noon.

Cheap flights from Denver International to San Diego in May, June 2021

The best prices found for DEN to SAN flights for May, June
18 May - 19 May
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
10 May - 19 May
$63pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
10 May - 19 May
$73pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl

Denver International to San Diego 2021 flight deals

Cheap flights to San Diego from Denver International found for this year
18 May - 19 May
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
10 May - 19 May
$63pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
10 May - 19 May
$73pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl

Non-stop flights to San Diego from Denver International

Save time with Denver International to San Diego direct flight deals
18 May - 19 May
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
17 May - 19 May
$63pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
24 May - 26 May
$82pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Denver International to San Diego

Late deals on round-trip flights to San Diego from Denver International, departing today and this week
18 May - 19 May
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
17 May - 19 May
$63pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
18 May - 19 May
$73pp
DEN
Denver Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

One-way flights to San Diego from Denver International

The cheapest one-way flights from Denver International to San Diego
4:00 am - 5:21 am
United Airlines
Nonstop
2h 21m
DEN - SAN
United Airlines
$49
United
12:42 pm - 6:40 pm
American Airlines
1 Stop
6h 58m
DEN - SAN
American Airlines
2:10 am - 3:54 am
Multiple Airlines
1 Stop
26h 44m
DEN - SAN
Multiple Airlines
$78
Gotogate

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Denver International</span> to <span class="emphasized">San Diego</span> flights.

Flight FAQs

From Denver International to San Diego

Are flight prices decreasing from Denver to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Denver and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Denver Intl to San Diego have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, Frontier, and Spirit Airlines flying from Denver Intl to San Diego have implemented new flexible cancellation policies.

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 16 daily flights to San Diego from 7 different airlines. 2h 12m is how long a flight from Denver to San Diego will take if you book a nonstop flight.

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

Yes, there are multiple flights from Denver International to San Diego for under $100. The cheapest flight booked recently is on Frontier for just $62, but on average you can expect to pay $88.

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

Cheapflights has at least 20 direct flights from Denver International to San Diego under $100. A good price for a nonstop flight from Denver International to San Diego is less than $95.

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

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

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

You can find nonstop flights on the following days: Monday, Wednesday, Friday.

How popular is this flight route?

Within the past month, 283 users have taken a look at flights from Denver Intl to San Diego.

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

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

Does it rain more in Denver or San Diego?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Denver is typically greater than that of San Diego. We can gather that this will continue over the next 11 days.

Is Denver weather warmer or cooler than San Diego?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in San Diego is typically colder than in Denver. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Denver International to San Diego?

A quick flight from Denver International to San Diego can take about 2h 23m. Frontier provides one of the quickest options available for as low as $92. The distance between Denver International and San Diego is about 856 mi. Most flights are nonstop.

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

Frontier, at $62, was found to be the cheapest airline from Denver International to San Diego.. Frontier is priced at 65% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Denver International to San Diego one-way?

The cheapest airlines for a one-way flight from Denver International to San Diego are Frontier ($33), Spirit Airlines ($40), and United Airlines ($49).

Alternative routes for Denver International to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Diego

Things to know before you go - useful duration and weather info for your trip from Denver International to San Diego.
Flight duration
2h 29m
Average temperature for May in San Diego
71.6 °F
Avg rainfall for May in San Diego
0.2 ″

Airports servicing Denver

Airports servicing San Diego

Top 6 airlines flying from Denver International to San Diego

The chart below displays the airlines Cheapflights users traveling from Denver International to San Diego choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$82 $145 No cancel fee N/A
American Airlines
$57 $160 No cancel fee 71%
Spirit Airlines
$69 $166 No cancel fee 65%
Frontier
$77 $178 No cancel fee 62%
United Airlines
$97 $246 No cancel fee 69%
Southwest
$101 $324 No cancel fee 63%

Hourly flight availability from Denver International to San Diego

See what time of day planes typically take off from Denver International towards San Diego.
Morning 6 AM to noon 41% of DEN to SAN departures
Afternoon Noon to 6 PM 31% of DEN to SAN departures
Evening 6 PM to midnight 23% of DEN to SAN departures
Early morning Midnight to 6 AM 5% of DEN to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Denver International to San Diego
See how many times per day planes take to the skies headed from Denver International to San Diego.
Sunday
22 daily flights
Monday
23 daily flights
Tuesday
7 daily flights
Wednesday
10 daily flights
Thursday
18 daily flights
Friday
23 daily flights
Saturday
14 daily flights
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