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Cheap Flights from Denver to San Diego, CA, United States - DEN to SAN

Popular flights from Denver to San Diego

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
May 21, 2016 May 23, 2016 $348
May 21, 2016 May 28, 2016 $348
Jun 9, 2016 Jun 14, 2016 $348
American Airlines
Departure Date Return Date Lowest Price
Jun 5, 2016 Jun 16, 2016 $174
Jun 8, 2016 Jun 14, 2016 $174
Jun 8, 2016 Jun 28, 2016 $174
Jun 8, 2016 Jun 17, 2016 $174
Jun 11, 2016 Jun 18, 2016 $174
Frontier Airlines
Departure Date Return Date Lowest Price
May 24, 2016 May 25, 2016 $138
May 24, 2016 Jun 1, 2016 $138
Jun 15, 2016 Jun 22, 2016 $138
Spirit Airlines
Departure Date Return Date Lowest Price
May 17, 2016 May 19, 2016 $137
May 17, 2016 May 24, 2016 $137
May 17, 2016 May 18, 2016 $137
May 18, 2016 May 23, 2016 $137
May 18, 2016 May 24, 2016 $137
United Airlines
Departure Date Return Date Lowest Price
May 21, 2016 May 28, 2016 $177
May 24, 2016 May 31, 2016 $177
Jun 16, 2016 Jun 20, 2016 $177
Virgin America
Departure Date Return Date Lowest Price
May 28, 2016 May 31, 2016 $276
May 28, 2016 Jun 1, 2016 $276
Jun 7, 2016 Jun 8, 2016 $276

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 $139.

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 $162 $254
7-14 days $137 $227
14-21 days $137 $185
21-30 days $148 $210
30-60 days $138 $174
60-90 days $137 $224
90+ days $137 $174

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 $137 $137 $137 $142 $137 $142

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 Spirit 5/17/16 5/18/16 0 $137
June Denver San Diego Frontier 6/15/16 6/22/16 0 $138
July Denver San Diego Spirit 7/12/16 7/19/16 0 $157
August Denver San Diego Spirit 8/3/16 8/10/16 0 $137
September Denver San Diego Spirit 9/1/16 9/4/16 0 $137
October Denver San Diego Spirit 10/3/16 10/9/16 0 $137
November Denver San Diego Spirit 11/3/16 11/7/16 0 $137
December Denver San Diego Spirit 12/1/16 12/8/16 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
8 9 10 11 12 13 14
$167
15 16 17 18 19 20 21
$167 $137
22 23 24 25 26 27 28
$137 $187
29 30 31 1 2 3 4
$187 $168
5 6 7 8 9 10 11
$168 $168
12 13 14 15 16 17 18
$168

TIPSave $45 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 $243.

The average price for non-stop flights from Denver to San Diego is $159.

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 2 3 3 3 3 3 11:19 21:55
Spirit 1 1 1 1 1 1 1 07:10 07:10
United 4 4 4 4 4 3 3 07:55 18:50

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 $126.

The average price for round trip flights from Denver to San Diego is $212.

More Cheap Flights

FlightsAirlineLowest Price
Colorado Springs to San Diego American, Alaska, Frontier, United $242
Aspen to San Diego American, Alaska, United $512
Montrose to San Diego American, United $440
Gunnison to San Diego American, Alaska, United $626
Vail to San Diego American, United $549
Hayden - Steamboat to San Diego American, Alaska, United $532
Denver to Los Angeles American, Alaska, Frontier, Spirit, United, Virgin America $87
Denver to Las Vegas American, Alaska, Frontier, Spirit, United $90
Denver to Santa Ana American, Frontier, United $108
Denver to Ontario American, United $189
Denver to Phoenix American, Alaska, Frontier, Spirit, United $81
Denver to Tijuana American, AeroMexico, Alaska, United $910
Denver to Palm Springs American, Alaska, United, Virgin America $296
Denver to Burbank American, United $201
Colorado Springs to Los Angeles United $341
Denver to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United $80
Denver to Long Beach American, United $258
Denver to PalomarCheck Dates
Denver to San Francisco American, Alaska, Frontier, United, Virgin America $136
Aspen to Los Angeles American, Alaska, United $445
Colorado Springs to Tijuana American, AeroMexico, United Check Dates
Denver to Chicago American, Alaska, Frontier, Spirit, United $81
Denver to Santa Barbara American, Alaska, United $384
Denver to Atlanta American, Alaska, Frontier, Spirit, United $148
Vail to Los Angeles American, Alaska, United $512
Denver to Seattle American, Alaska, Frontier, United, Virgin America $163
Colorado Springs to Santa Ana American, Alaska, United $297
Denver to Tucson American, United $229
Denver to Yuma American, Alaska, United $181
Denver to Salt Lake City Boutique, American, Frontier, United $88

Airlines Flying from Denver to San Diego (DEN to SAN)

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 LAX X X X X X X X
Alaska SEA X X X X X X X
Alaska SEA / PDX X X X X X X X
Delta MSP 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 LAS 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 52 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 48% 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.