This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAN
16 Oct — 23 Oct1
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 16 September 2026.
Tue 20/1014:25 -
Nonstop2h 30m
Sat 24/1017:45 -
Nonstop2h 15m
Deal found 13/9£146
Tue 27/1008:45 -
Nonstop2h 30m
Sat 31/1009:20 -
Nonstop2h 20m
Deal found 15/9£149
Tue 13/1006:35 -
Nonstop2h 30m
Tue 20/1019:20 -
Nonstop2h 30m
Deal found 15/9£150
Sat 24/1016:10 -
Nonstop2h 30m
Wed 28/1008:20 -
Nonstop2h 15m
Deal found 14/9£151
Wed 7/1016:15 -
1 stop4h 53m
Sat 17/1007:00 -
Nonstop2h 33m
Deal found 14/9£157
Sat 24/1008:45 -
1 stop4h 35m
Sat 24/1015:35 -
1 stop5h 00m
Deal found 13/9£157
Wed 4/1108:50 -
2 stops5h 10m
Sat 7/1117:00 -
Nonstop2h 30m
Deal found 14/9£158
Wed 14/1021:00 -
Nonstop2h 27m
Mon 19/1018:50 -
Nonstop2h 29m
Deal found 16/9£160
Tue 13/1019:10 -
1 stop5h 32m
Tue 20/1010:57 -
1 stop6h 12m
Deal found 14/9£161
Wed 11/1115:45 -
1 stop4h 10m
Sat 14/1109:15 -
2 stops6h 20m
Deal found 12/9£162
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 16 September 2026.
Thu 11/208:00 -
Nonstop2h 17m
Sat 13/214:30 -
Nonstop2h 13m
Deal found 15/9£160
Fri 11/1208:30 -
1 stop4h 45m
Sun 13/1218:25 -
1 stop4h 15m
Deal found 12/9£172
Tue 27/1005:25 -
1 stop4h 22m
Wed 28/1013:36 -
1 stop4h 58m
Deal found 12/9£176
Thu 21/114:55 -
1 stop6h 27m
Wed 27/115:46 -
Nonstop2h 33m
Deal found 14/9£194
Fri 26/211:33 -
1 stop6h 51m
Wed 3/320:29 -
Nonstop2h 22m
Deal found 15/9£199
Tue 17/1108:50 -
2 stops5h 10m
Fri 20/1112:15 -
1 stop3h 50m
Deal found 13/9£202
Sat 17/1015:50 -
1 stop5h 40m
Sun 25/1008:40 -
1 stop4h 40m
Deal found 12/9£205
Fri 9/1007:35 -
Nonstop2h 30m
Fri 9/1021:15 -
Nonstop2h 30m
Deal found 14/9£222
Fri 18/1205:25 -
1 stop4h 33m
Mon 21/1216:00 -
1 stop6h 11m
Deal found 14/9£274
Fri 12/311:33 -
1 stop6h 51m
Sun 14/307:00 -
1 stop7h 16m
Deal found 13/9£298
Tue 13/1015:06 -
2 stops19h 43m
Sat 17/1007:50 -
2 stops9h 35m
Deal found 15/9£299
Mon 21/1212:25 -
2 stops5h 00m
Sun 27/1219:15 -
1 stop4h 05m
Deal found 13/9£328
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 16 September 2026.
Tue 20/1014:25 -
Nonstop2h 30m
Sat 24/1017:45 -
Nonstop2h 15m
Deal found 13/9£146
Tue 27/1008:45 -
Nonstop2h 30m
Sat 31/1009:20 -
Nonstop2h 20m
Deal found 15/9£149
Tue 13/1006:35 -
Nonstop2h 30m
Tue 20/1019:20 -
Nonstop2h 30m
Deal found 15/9£150
Sat 24/1016:10 -
Nonstop2h 30m
Wed 28/1008:20 -
Nonstop2h 15m
Deal found 14/9£151
Wed 21/1006:35 -
Nonstop2h 30m
Mon 26/1017:55 -
Nonstop2h 15m
Deal found 12/9£154
Tue 27/1009:45 -
Nonstop2h 41m
Tue 27/1014:33 -
Nonstop2h 28m
Deal found 12/9£157
Thu 7/115:50 -
Nonstop2h 20m
Tue 12/118:30 -
Nonstop2h 30m
Deal found 15/9£160
Fri 23/1021:05 -
Nonstop2h 40m
Mon 26/1017:55 -
Nonstop2h 15m
Deal found 12/9£161
Tue 12/112:25 -
Nonstop2h 25m
Fri 15/113:15 -
Nonstop2h 20m
Deal found 16/9£162
Sun 8/1111:25 -
Nonstop2h 31m
Wed 11/1112:39 -
Nonstop2h 29m
Deal found 14/9£162
Wed 4/1112:05 -
Nonstop2h 25m
Sun 8/1120:00 -
Nonstop2h 25m
Deal found 14/9£163
Thu 21/113:45 -
Nonstop2h 31m
Wed 27/115:46 -
Nonstop2h 33m
Deal found 14/9£168
Last-minute flights from Denver to San Diego
Discover last-minute flight deals from Denver to San Diego. Data last updated 16 September 2026 and is based on user searches.
Wed 7/1016:15 -
1 stop4h 53m
Sat 17/1007:00 -
Nonstop2h 33m
Deal found 14/9£157
Tue 13/1006:35 -
Nonstop2h 30m
Tue 20/1019:20 -
Nonstop2h 30m
Deal found 15/9£150
Tue 13/1019:10 -
1 stop5h 32m
Tue 20/1010:57 -
1 stop6h 12m
Deal found 14/9£161
Tue 13/1007:10 -
1 stop5h 35m
Sat 17/1015:10 -
1 stop5h 25m
Deal found 15/9£164
Wed 14/1021:00 -
Nonstop2h 27m
Mon 19/1018:50 -
Nonstop2h 29m
Deal found 16/9£160
Tue 20/1014:25 -
Nonstop2h 30m
Sat 24/1017:45 -
Nonstop2h 15m
Deal found 13/9£146
Sat 24/1016:10 -
Nonstop2h 30m
Wed 28/1008:20 -
Nonstop2h 15m
Deal found 14/9£151
Sat 24/1008:45 -
1 stop4h 35m
Sat 24/1015:35 -
1 stop5h 00m
Deal found 13/9£157
Mon 26/1017:00 -
1 stop4h 05m
Wed 28/1012:15 -
1 stop3h 45m
Deal found 12/9£162
Tue 27/1008:45 -
Nonstop2h 30m
Sat 31/1009:20 -
Nonstop2h 20m
Deal found 15/9£149
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 16 September 2026.
Sat 13/208:20 -
Nonstop2h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 14/9£75
Wed 18/1108:50 -
Nonstop2h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 13/9£76
Wed 20/115:40 -
1 stop4h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 15/9£79
Wed 10/305:40 -
1 stop4h 26m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 14/9£81
Tue 13/1007:10 -
1 stop5h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 14/9£82
Tue 15/1208:50 -
2 stops5h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 15/9£83
Mon 26/1017:00 -
1 stop4h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 12/9£85
Thu 17/1221:01 -
Nonstop2h 31m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 15/9£86
Fri 23/1016:10 -
Nonstop2h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/9£88
Sun 15/1108:35 -
Nonstop2h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/9£88
Mon 21/1208:40 -
1 stop4h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 15/9£90
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 16 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 16 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 15/12
08:20-11:25
1 stop4h 05m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£79
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Wed 11/11
12:53-18:05
1 stop6h 12m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£81
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Fri 11/12
08:30-12:15
1 stop4h 45m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£85
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
£88
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Sun 15/11
06:25-10:25
1 stop5h 00m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£88
Fastest return journey
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Fri 1/1
21:01-22:32
Nonstop2h 31m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£88
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Fri 29/1
15:50-18:45
1 stop3h 55m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£91
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Thu 8/10
05:00-10:17
1 stop6h 17m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£93
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Sun 13/12
06:45-10:25
1 stop4h 40m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£96
DenverSan Diego
DEN Denver Intl - SAN San Diego
DENSAN
Denver Intl
Mon 14/12
08:50-13:00
2 stops5h 10m
San Diego
Wed 31/12
00:00-01:00
Nonstop0h 00m
£107
Flights are sorted by cheapest return flights first.
Deals found on 14/9
Showing 1-10 of 23 resultsSorted by cheapest first
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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 £89). Flying from Denver to San Diego in June is currently the most expensive (average of £198). 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 16 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 typical for this route at the moment.
Denver to San Diego flights typically cost between £111 and £232 in October.The cheapest return price found within the last 5 days was £146 on Southwest (20 Oct–24 Oct).
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 16 September 2026.
The most flights from DEN to SAN are scheduled on a Monday (32 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).
How often are flights from Denver to San Diego delayed?
About 20% 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 14% 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 17m. United Airlines provides one of the quickest options available for as low as £160. 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 £89). Flying from Denver to San Diego in June is currently the most expensive (average of £198). 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 16 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 16 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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