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

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The best prices from Denver Intl 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 (DEN) to San Diego (SAN)

All the information you need to plan the best DEN to SAN flight in 2021: compare Denver 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
Precipitation
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 Intl to San Diego

One-way from

$59

One-way flight from Denver Intl 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 to San Diego?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 29% 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 14 days in advance, which can save you up to 7% on flights from Denver to San Diego compared to booking the week you need them. Waiting 14 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 $164. For sooner than that we have options available in the next 3 days from $186.

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

August is one of the best times of the year to fly to San Diego from Denver. Prices for August average $180 per person but you can even find prices for as low as $96. The most expensive prices can be found in the month of December. Opting for a August flight can save you 29% on your journey compared to booking in August

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 morning, which can drop the price by up to 23% versus a flight at noon.

Cheap flights from Denver to San Diego in September, October 2021

The best prices found for DEN to SAN flights for September, October
27 Oct - 30 Oct
$60pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
27 Oct - 30 Oct
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
27 Oct - 30 Oct
$66pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Denver Intl to San Diego 2021 flight deals

Cheap flights to San Diego from Denver found for this year
27 Oct - 30 Oct
$60pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
27 Oct - 30 Oct
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
6 Nov - 9 Nov
$64pp
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
DEN
Denver Intl

Non-stop flights to San Diego from Denver

Save time with Denver to San Diego direct flight deals
27 Oct - 30 Oct
$60pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
27 Oct - 30 Oct
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
27 Oct - 30 Oct
$66pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Denver to San Diego

Late deals on round-trip flights to San Diego from Denver, departing today and this week
27 Sep - 30 Sep
$71pp
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
DEN
Denver Intl
28 Sep - 30 Sep
$82pp
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
DEN
Denver Intl
25 Sep - 29 Sep
$87pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

One-way flights to San Diego from Denver

The cheapest one-way flights from Denver to San Diego
3:45 pm - 5:10 pm
United Airlines
Nonstop
2h 25m
DEN - SAN
United Airlines
$59
United
7:59 pm - 5:21 pm
Spirit Airlines
3 Stops
22h 22m
DEN - SAN
Spirit Airlines
$64
FareScan
6:00 pm - 7:24 pm
Frontier
Nonstop
2h 24m
DEN - SAN
Frontier
$65
Kiwi.com

Related info for your journey

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

Flight FAQs

From Denver to San Diego

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 18 daily flights to San Diego from 7 different airlines. 2h 22m is how long a flight from Denver to San Diego will take if you book a nonstop flight.

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.

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.

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 $60, but on average you can expect to pay $74.

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 $84.

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.

How popular is this Denver to San Diego flight route?

Flights from Denver Intl to San Diego have been viewed 283 times in the past calendar month.

What are the cheapest airlines flying from Denver to San Diego round-trip?

Frontier, at $60, was found to be the cheapest airline from Denver to San Diego. An alternate airline flying to your destination would be Spirit Airlines. Frontier is currently priced 66% below the average price you’ll pay for this route.

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

The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $31. However, be on the lookout for offers from Frontier and United Airlines, as they are both options that can get you from Denver to San Diego for a low price.

Related searches

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

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COVID Restrictions

View COVID Travel Restrictions for San Diego, CA

Do I need a COVID test to fly to San Diego from Denver?

Information is based on travel restrictions for travel to San Diego within the United States

Most visitors from Denver Intl need to provide a negative COVID-19 test result and/or quarantine to enter San Diego.

COVID-19 testing requirements
Visitors from Denver Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Diego.

Quarantine requirements
Visitors from Denver Intl are not required to quarantine after entering San Diego.

Do I need a test to fly back to Denver from San Diego?

Returning to Denver Intl from San Diego

COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Denver Intl.

Quarantine requirements
Visitors from San Diego are not required to quarantine after entering Denver Intl.

Hide COVID Travel Restrictions for San Diego, CA

Alternative routes for Denver 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 to San Diego.
Flight duration from DEN to SAN
2h 30m
Average temperature for September in San Diego
80.6 °F
Avg rainfall for September in San Diego
0.1 ″

Airports servicing Denver

Airports servicing San Diego

Top 6 airlines flying from Denver Intl to San Diego

The chart below displays the airlines Cheapflights users traveling from Denver 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 to San Diego

See what time of day planes typically take off from Denver towards San Diego.
Afternoon Noon to 6 PM 38% of DEN to SAN departures
Evening 6 PM to midnight 33% of DEN to SAN departures
Morning 6 AM to noon 26% of DEN to SAN departures
Early morning Midnight to 6 AM 3% of DEN to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Denver to San Diego
See how many times per day planes take to the skies headed from Denver to San Diego.
Sunday
14 daily flights
Monday
20 daily flights
Tuesday
20 daily flights
Wednesday
21 daily flights
Thursday
22 daily flights
Friday
21 daily flights
Saturday
10 daily flights
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