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Cheap Flights from Denver to San Diego, CA, United States - DEN to SAN Last modified: May 31, 2016 7:01 AM

Popular flights from Denver to San Diego Last modified: May 31, 2016 7:01 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Sep 15, 2016 Sep 18, 2016 $403
Sep 21, 2016 Sep 23, 2016 $403
American Airlines
Departure Date Return Date Lowest Price
Jun 21, 2016 Jun 28, 2016 $282
Jul 3, 2016 Jul 6, 2016 $282
Jul 12, 2016 Jul 19, 2016 $282
Jul 12, 2016 Jul 20, 2016 $282
Jul 13, 2016 Jul 27, 2016 $282
Frontier Airlines
Departure Date Return Date Lowest Price
Aug 23, 2016 Sep 12, 2016 $128
Aug 24, 2016 Sep 7, 2016 $128
Aug 24, 2016 Aug 31, 2016 $128
Sep 7, 2016 Sep 14, 2016 $128
Sep 7, 2016 Sep 13, 2016 $128
Spirit Airlines
Departure Date Return Date Lowest Price
Aug 31, 2016 Sep 9, 2016 $134
United Airlines
Departure Date Return Date Lowest Price
Aug 23, 2016 Sep 12, 2016 $193
Aug 24, 2016 Sep 13, 2016 $193
Aug 24, 2016 Sep 7, 2016 $193
Aug 24, 2016 Aug 31, 2016 $193
Aug 25, 2016 Aug 31, 2016 $193
Virgin America
Departure Date Return Date Lowest Price
Aug 24, 2016 Aug 31, 2016 $280
Aug 24, 2016 Sep 7, 2016 $280
Sep 7, 2016 Sep 14, 2016 $280
Sep 8, 2016 Sep 13, 2016 $280
Sep 8, 2016 Sep 14, 2016 $280

How Much Does it Cost to Fly from Denver to San Diego (DEN to SAN)?

We have collected flight cost data from across the web for travel from Denver to San Diego, and have found the average flight price for this trip to be $135.

When Can I Buy the Cheapest Flight from Denver to San Diego (DEN to SAN)?

Airlines can adjust prices for plane tickets from Denver to San Diego based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Denver to San Diego

The chart below shows up-to-date information regarding how far in advance a flight from Denver to San Diego should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $254 $350
7-14 days $147 $240
14-21 days $147 $224
21-30 days $147 $224
30-60 days $157 $250
60-90 days $128 $201
90+ days $128 $201

Cheapest Day To Fly from Denver to San Diego

The chart below shows up-to-date information regarding the cheapest days to fly from Denver to San Diego.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$137 $128 $128 $137 $137 $137 $137

Lowest Fares Chart By Month from Denver to San Diego

The chart below shows the lowest fare by month when flying from Denver to San Diego.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Denver San Diego Frontier 5/31/16 6/1/16 0 $439
June Denver San Diego Spirit 6/14/16 6/21/16 0 $147
July Denver San Diego Spirit 7/12/16 7/19/16 0 $157
August Denver San Diego Frontier 8/23/16 9/12/16 0 $128
September Denver San Diego Frontier 9/7/16 9/13/16 0 $128
October Denver San Diego Frontier 10/4/16 10/11/16 0 $128
November Denver San Diego Spirit 11/1/16 11/4/16 0 $137
December Denver San Diego Spirit 12/1/16 12/5/16 0 $137

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Denver to San Diego

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Denver to San Diego.

Next 30 Days

SunMonTueWedThuFriSat
29 30 31 1 2 3 4
$254
5 6 7 8 9 10 11
$254 $197
12 13 14 15 16 17 18
$197 $167
19 20 21 22 23 24 25
$167 $162
26 27 28 29 30 1 2
$162 $202
3 4 5 6 7 8 9
$202
TIPSave $10 by flying into Los Angeles instead of San Diego from Denver

Non-Stop vs Connecting Flights from Denver to San Diego (DEN to SAN)

Your Denver to San Diego flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Denver to San Diego is $292.

The average price for non-stop flights from Denver to San Diego is $157.

The chart below shows up to date information regarding non-stop flights from Denver to San Diego.

Nonstop Flight Details from Denver to San Diego
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Frontier 3 3 3 3 3 3 3 11:19 21:55
Spirit 1 1 1 1 1 1 1 07:10 07:10
United 4 5 5 5 5 5 4 07:55 19:00

Round Trip vs One Way Flights from Denver to San Diego (DEN to SAN)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Denver to San Diego. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Denver to San Diego is $129.

The average price for round trip flights from Denver to San Diego is $250.

More Cheap Flights

FlightsAirlineLowest Price
Colorado Springs to San Diego American, Alaska, United $248
Aspen to San Diego American, Alaska, United $518
Montrose to San Diego American, United $448
Gunnison to San Diego American, United Check Dates
Vail to San Diego American, Alaska, United $412
Hayden - Steamboat to San Diego American, Alaska, United Check Dates
Denver to Los Angeles American, Alaska, Frontier, Spirit, United, Virgin America $87
Denver to Las Vegas American, Alaska, Frontier, Allegiant, Spirit, United $88
Denver to Santa Ana American, Frontier, United $158
Denver to Ontario American, United $193
Denver to Phoenix American, Alaska, Frontier, Spirit, United $75
Denver to Tijuana American, AeroMexico, Alaska, United, Volaris $815
Denver to Palm Springs American, Alaska, United, Virgin America $379
Denver to Burbank American, United $193
Colorado Springs to Los Angeles United $347
Denver to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United $77
Denver to Long Beach American, United $255
Denver to PalomarCheck Dates
Denver to San Francisco American, Alaska, Frontier, United, Virgin America $141
Aspen to Los Angeles American, Alaska, United $395
Colorado Springs to Tijuana American, AeroMexico, United Check Dates
Denver to Chicago American, Alaska, Frontier, Spirit, United $117
Denver to Santa Barbara American, Alaska, United $350
Denver to Atlanta American, Alaska, Frontier, Spirit, United $148
Vail to Los Angeles American, Alaska, United $814
Denver to Seattle American, Alaska, Frontier, United, Virgin America $148
Colorado Springs to Santa Ana American, Alaska, United $268
Denver to Tucson American, United $245
Denver to Yuma American, Alaska $260
Denver to Salt Lake City Boutique, American, Frontier, United $78

Airlines Flying from Denver to San Diego (DEN to SAN) Number of flights searched: 215Last modified: May 31, 2016 7:01 AM

Below are the different airlines that fly from Denver to San Diego with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Denver to San Diego.

Denver to San Diego
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHX X X X X X X X
Alaska SEA X X X X X X X
Delta LAX X X X X X X X
Frontier - X X X X X X X
Spirit - X X X X X X X
Spirit LAS X X X X X X X
United - X X X X X X X
United LAX X X X X X X X
Virgin America SFO X X X X X X X
Southwest - X X X X X X X
Southwest TUS X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Denver and San Diego, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Denver to San Diego Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Denver to San Diego?
Answer: The average Denver to San Diego flight time is 2 hours and 21 minutes.
Question: How many miles are there between Denver and San Diego?
Answer: The distance from Denver to San Diego is 851 miles.
Question: How common are direct flights from Denver to San Diego?
Answer: There are 55 direct flights from Denver to San Diego.
Question: What is the most popular airline for non-stop flights from Denver to San Diego?
Answer: United Airlines provides 49% of the non-stop flights between Denver and San Diego.
Question: What are the most popular connecting cities when flying from Denver to San Diego?
Answer: Las Vegas, NV
Denver (DEN) To San Diego, CA (SAN) Flights: Cheap Flights From Denver To San Diego | FareCompare.