This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAN
27 Oct — 3 Nov1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Denver Intl to San Diego are usually found in February or January, booked 88 days in advance, depart on a Tuesday or Monday and return on a Monday
Cheap flight deals from Denver to San Diego
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Denver to San Diego
Explore the most affordable flight options available from Denver to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.
Sat 7/1122:29 -
Nonstop2h 28m
Sat 14/1116:53 -
Nonstop2h 32m
Deal found 23/9£82
Tue 10/1122:29 -
Nonstop2h 28m
Tue 17/1116:53 -
Nonstop2h 32m
Deal found 26/9£82
Thu 26/1106:45 -
1 stop6h 22m
Tue 1/1211:16 -
Nonstop2h 42m
Deal found 25/9£91
Sat 24/1009:45 -
Nonstop2h 41m
Sat 24/1014:33 -
Nonstop2h 28m
Deal found 24/9£145
Sat 24/1019:45 -
Nonstop2h 30m
Sat 31/1010:50 -
Nonstop2h 15m
Deal found 24/9£149
Best flights from Denver to San Diego
Discover carefully curated flight deals from Denver to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.
Sat 24/1019:45 -
Nonstop2h 30m
Sat 31/1010:50 -
Nonstop2h 15m
Deal found 24/9£149
Thu 7/118:25 -
1 stop4h 37m
Mon 11/115:59 -
1 stop6h 01m
Deal found 24/9£179
Tue 27/1007:53 -
1 stop6h 19m
Sat 31/1009:20 -
1 stop6h 39m
Deal found 26/9£224
Thu 29/1013:30 -
1 stop4h 47m
Sun 1/1118:30 -
Nonstop2h 28m
Deal found 23/9£247
Fri 4/1208:50 -
2 stops5h 10m
Sun 6/1212:15 -
1 stop3h 50m
Deal found 26/9£244
Wed 14/1019:10 -
1 stop4h 45m
Sat 14/1115:59 -
1 stop4h 53m
Deal found 26/9£251
Wed 30/1207:40 -
Nonstop2h 34m
Mon 4/106:45 -
Nonstop2h 31m
Deal found 23/9£269
Fri 15/112:55 -
2 stops7h 40m
Sun 17/106:45 -
1 stop3h 50m
Deal found 23/9£251
Tue 13/1019:10 -
1 stop5h 32m
Sun 15/1106:15 -
1 stop4h 41m
Deal found 26/9£258
Sun 20/1207:40 -
Nonstop2h 34m
Sun 27/1206:45 -
Nonstop2h 31m
Deal found 23/9£315
Tue 29/1212:25 -
2 stops5h 00m
Wed 30/1218:25 -
1 stop4h 30m
Deal found 25/9£308
Direct flights from Denver to San Diego
Explore direct flight options from Denver to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 September 2026.
Sat 7/1122:29 -
Nonstop2h 28m
Sat 14/1116:53 -
Nonstop2h 32m
Deal found 23/9£82
Tue 10/1122:29 -
Nonstop2h 28m
Tue 17/1116:53 -
Nonstop2h 32m
Deal found 26/9£82
Thu 26/1122:29 -
Nonstop2h 28m
Tue 1/1211:16 -
Nonstop2h 42m
Deal found 25/9£94
Sat 24/1009:45 -
Nonstop2h 41m
Sat 24/1014:33 -
Nonstop2h 28m
Deal found 24/9£145
Sat 24/1019:45 -
Nonstop2h 30m
Sat 31/1010:50 -
Nonstop2h 15m
Deal found 24/9£149
Sat 24/1016:10 -
Nonstop2h 30m
Mon 26/1017:55 -
Nonstop2h 15m
Deal found 22/9£156
Fri 8/113:45 -
Nonstop2h 31m
Fri 8/118:39 -
Nonstop2h 36m
Deal found 24/9£160
Mon 26/1019:05 -
Nonstop2h 31m
Mon 2/1108:45 -
Nonstop2h 25m
Deal found 24/9£164
Fri 23/1014:10 -
Nonstop2h 30m
Sat 31/1010:50 -
Nonstop2h 15m
Deal found 24/9£170
Fri 23/1016:10 -
Nonstop2h 30m
Fri 30/1021:15 -
Nonstop2h 30m
Deal found 24/9£177
Wed 14/1020:25 -
Nonstop2h 40m
Thu 22/1021:15 -
Nonstop2h 30m
Deal found 23/9£179
Fri 23/1009:45 -
Nonstop2h 41m
Fri 23/1014:33 -
Nonstop2h 28m
Deal found 24/9£187
Last-minute flights from Denver to San Diego
Discover last-minute flight deals from Denver to San Diego. Data last updated 27 September 2026 and is based on user searches.
Fri 2/1021:00 -
Nonstop2h 27m
Mon 5/1018:50 -
Nonstop2h 29m
Deal found 23/9£345
Sat 3/1022:29 -
Nonstop2h 22m
Tue 6/1010:28 -
1 stop28h 13m
Deal found 23/9£269
Sun 4/1009:05 -
1 stop10h 04m
Tue 6/1010:28 -
1 stop22h 18m
Deal found 23/9£278
Tue 6/1010:45 -
1 stop6h 11m
Tue 13/1017:01 -
1 stop4h 39m
Deal found 22/9£266
Tue 6/1005:25 -
1 stop4h 22m
Sun 11/1010:57 -
1 stop6h 12m
Deal found 22/9£337
One-way flights from Denver to San Diego
Search for one-way flight options from Denver to San Diego. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.
Tue 22/1213:25 -
Nonstop2h 31m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 23/9£75
Wed 23/1207:50 -
1 stop4h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 23/9£82
Fri 8/115:40 -
1 stop4h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/9£86
Sun 1/1107:40 -
1 stop5h 17m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 23/9£90
Sat 17/1009:45 -
Nonstop2h 41m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 22/9£96
Tue 20/1005:25 -
1 stop4h 22m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 22/9£97
Wed 4/1108:50 -
2 stops5h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 24/9£112
Sat 24/1007:53 -
2 stops10h 17m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 24/9£116
Tue 27/1007:07 -
2 stops12h 22m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/9£119
Fri 20/1107:24 -
Nonstop2h 46m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 22/9£120
Fri 20/1108:30 -
1 stop4h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 22/9£124
Sun 21/306:30 -
1 stop5h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/9£128
Find flight deals from Denver to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 September 2026.
Customise your flight search to find flights from Denver to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 27 September 2026.
Use the filters below to find and compare flights from Denver to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Tue 29/12
06:00-11:35
1 stop6h 35m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£82
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Thu 22/10
07:35-09:05
Nonstop2h 30m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£82
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Tue 22/12
16:10-20:17
1 stop5h 07m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£82
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Fri 8/1
15:40-18:45
1 stop4h 05m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£86
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Sun 17/1
19:40-00:29
1 stop5h 49m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£86
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Mon 18/1
13:45-15:16
Nonstop2h 31m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£90
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Sun 1/11
06:00-11:31
1 stop6h 31m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£90
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Sun 25/10
05:00-10:12
1 stop6h 12m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£90
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Mon 19/10
19:10-23:42
1 stop5h 32m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£97
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Tue 20/10
05:25-08:47
1 stop4h 22m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£97
Flights are sorted by cheapest return flights first.
Deals found on 26/9
Showing 1-10 of 23 resultsSorted by cheapest first
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2
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Best time to book a flight from Denver to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Denver with our price prediction graph.
DEN-SAN
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Denver to San Diego
Prices
Airlines
Delays
How far ahead should I book a flight from Denver to San Diego?
The price you pay for your flight from Denver to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Denver to San Diego?
Currently, February is the cheapest month in which you can book a flight from Denver to San Diego (average of £91). Flying from Denver to San Diego in June is currently the most expensive (average of £202). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DEN to SAN?
Find hourly flight availability from Denver to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 September 2026.
A simple way to save on the total cost of your ticket is to fly from Denver to San Diego at midday. If you’re flexible enough to do this you can expect to save up to 73% on your trip compared to booking a flight in the morning.
How much does it cost for a return flight from Denver to San Diego?
Airfare is below average for this route at the moment.
Denver to San Diego flights typically cost between £101 and £206 in November.The cheapest return price found within the last 5 days was £82 on Frontier (7 Nov–14 Nov).
Weekly flight availability from Denver to San Diego
Explore weekly flight availability from Denver to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 27 September 2026.
The most flights from DEN to SAN are scheduled on a Friday (34 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (14 on average).
How often are flights from Denver to San Diego delayed?
About 21% of weekly flights between Denver and San Diego have experienced delays in the past year, with the average delay time being 130 minutes.
What is the most punctual flight time for Denver to San Diego flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Denver to San Diego flights?
Over the past year, Alaska Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Denver to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How popular is this Denver to San Diego flight route?
This flight path from Denver Intl to San Diego was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Denver to San Diego?
A quick flight from Denver to San Diego can take about 2h 30m. Southwest provides one of the quickest options available for as low as £149. The distance between Denver and San Diego is about 852 mi. This flight may include one or multiple stops.
What are the most reliable airlines from Denver to San Diego?
Before booking your flight to San Diego from Denver, check out the most reliable airlines to get you to your destination on time: Frontier (84%), Volaris (82%), Alaska Airlines( 71%).
Can I find deals for flights from Denver to San Diego that include hotel bookings?
Yes. In addition to deals on Denver to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Denver to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to San Diego.
Can I find deals for business class flights from Denver to San Diego?
Yes. Cheapflights offers flight deals from Denver to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Denver to San Diego?
Currently, February is the cheapest month in which you can book a flight from Denver to San Diego (average of £91). Flying from Denver to San Diego in June is currently the most expensive (average of £202). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on 27 September 2026.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 September 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Denver to San Diego?
Cheapflights helps you search for flights from Denver to San Diego via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Denver to San Diego?
Cheapflights simply makes it quick and affordable to book flights from Denver to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Denver to San Diego with no change fees?
Yes! Cheapflights helps users easily find flights from Denver to San Diego with no change fees.
Can Cheapflights notify me if prices for flights from Denver to San Diego become cheaper?
Yes, Cheapflights offers price alerts on Denver to San Diego flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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