This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
14 Jul — 21 Jul1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Diego to Denver Intl are usually found in February or January, booked 63 days in advance, depart on a Tuesday or Monday and return on a Monday
Cheap flight deals from San Diego to Denver
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Cheapest flights from San Diego to Denver
Explore the most affordable flight options available from San Diego to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 June 2026.
Sat 18/706:25
SAN
-
DEN
Nonstop2h 38m
Frontier
Fri 24/722:29
DEN
-
SAN
Nonstop2h 22m
Frontier
Deal found 12/6£133
Wed 7/1008:45
SAN
-
DEN
Nonstop2h 32m
United Airlines
Fri 9/1021:00
DEN
-
SAN
Nonstop2h 27m
United Airlines
Deal found 12/6£139
Sat 22/806:29
SAN
-
DEN
1 stop7h 33m
Delta
Sat 22/819:55
DEN
-
SAN
1 stop4h 32m
Delta
Deal found 12/6£147
Wed 2/908:45
SAN
-
DEN
1 stop4h 40m
Southwest
Mon 7/906:40
DEN
-
SAN
1 stop4h 40m
Southwest
Deal found 10/6£149
Wed 23/908:30
SAN
-
DEN
1 stop4h 30m
Southwest
Sat 26/913:30
DEN
-
SAN
2 stops6h 10m
Southwest
Deal found 10/6£154
Wed 23/913:36
SAN
-
DEN
1 stop4h 54m
Delta
Thu 24/917:56
DEN
-
SAN
1 stop6h 56m
Delta
Deal found 10/6£154
Thu 6/819:50
SAN
-
DEN
Nonstop2h 20m
Southwest
Mon 10/820:40
DEN
-
SAN
Nonstop2h 20m
Southwest
Deal found 11/6£155
Fri 4/1220:29
SAN
-
DEN
Nonstop2h 22m
Alaska Airlines
Mon 7/1208:20
DEN
-
SAN
Nonstop2h 25m
Alaska Airlines
Deal found 10/6£156
Sat 8/810:35
SAN
-
DEN
1 stop4h 45m
Southwest
Wed 12/813:45
DEN
-
SAN
1 stop4h 40m
Southwest
Deal found 10/6£157
Fri 18/917:02
SAN
-
DEN
1 stop4h 29m
Delta
Mon 21/919:25
DEN
-
SAN
1 stop5h 17m
Delta
Deal found 10/6£162
Fri 4/1217:00
SAN
-
DEN
1 stop4h 01m
United Airlines
Mon 7/1219:40
DEN
-
SAN
Nonstop2h 28m
United Airlines
Deal found 11/6£163
Best flights from San Diego to Denver
Discover carefully curated flight deals from San Diego to Denver that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 June 2026.
Wed 9/913:30
SAN
-
DEN
1 stop4h 40m
Delta
Mon 14/911:00
DEN
-
SAN
1 stop5h 56m
Delta
Deal found 10/6£154
Tue 7/714:40
SAN
-
DEN
2 stops7h 30m
Southwest
Sun 12/706:05
DEN
-
SAN
1 stop3h 55m
Southwest
Deal found 13/6£256
Fri 11/910:54
SAN
-
DEN
1 stop6h 27m
Delta
Fri 18/905:30
DEN
-
SAN
1 stop4h 11m
Delta
Deal found 14/6£162
Thu 25/618:55
SAN
-
DEN
Nonstop2h 32m
United Airlines
Sat 27/605:15
DEN
-
SAN
1 stop5h 44m
United Airlines
Deal found 10/6£371
Thu 16/706:15
SAN
-
DEN
1 stop7h 38m
Delta
Thu 16/719:09
DEN
-
SAN
1 stop5h 41m
Delta
Deal found 11/6£214
Mon 19/1010:00
SAN
-
DEN
2 stops8h 10m
Delta
Thu 22/1006:30
DEN
-
SAN
1 stop5h 00m
Delta
Deal found 12/6£492
Fri 6/1115:59
SAN
-
DEN
1 stop6h 01m
Delta
Sun 8/1112:45
DEN
-
SAN
2 stops7h 10m
Delta
Deal found 10/6£492
Sat 18/710:54
SAN
-
DEN
2 stops8h 07m
Delta
Thu 23/719:09
DEN
-
SAN
1 stop5h 41m
Delta
Deal found 12/6£518
Thu 23/706:15
SAN
-
DEN
1 stop7h 38m
Delta
Sat 25/707:05
DEN
-
SAN
2 stops9h 03m
Delta
Deal found 9/6£518
Sat 18/706:15
SAN
-
DEN
2 stops7h 38m
Delta
Fri 24/719:09
DEN
-
SAN
1 stop5h 40m
Delta
Deal found 11/6£518
Thu 23/717:01
SAN
-
DEN
1 stop4h 39m
Delta
Sun 2/815:55
DEN
-
SAN
2 stops8h 47m
Delta
Deal found 13/6£526
Wed 24/615:00
SAN
-
DEN
2 stops6h 00m
Delta
Wed 1/715:55
DEN
-
SAN
1 stop7h 23m
Delta
Deal found 11/6£712
Direct flights from San Diego to Denver
Explore direct flight options from San Diego to Denver based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 June 2026.
Sat 18/706:25
SAN
-
DEN
Nonstop2h 38m
Frontier
Fri 24/722:29
DEN
-
SAN
Nonstop2h 22m
Frontier
Deal found 12/6£133
Wed 7/1008:45
SAN
-
DEN
Nonstop2h 32m
United Airlines
Fri 9/1021:00
DEN
-
SAN
Nonstop2h 27m
United Airlines
Deal found 12/6£139
Fri 18/916:50
SAN
-
DEN
Nonstop2h 25m
Southwest
Mon 21/907:55
DEN
-
SAN
Nonstop2h 30m
Southwest
Deal found 11/6£147
Thu 6/819:50
SAN
-
DEN
Nonstop2h 20m
Southwest
Mon 10/820:40
DEN
-
SAN
Nonstop2h 20m
Southwest
Deal found 11/6£155
Fri 4/1220:29
SAN
-
DEN
Nonstop2h 22m
Alaska Airlines
Mon 7/1208:20
DEN
-
SAN
Nonstop2h 25m
Alaska Airlines
Deal found 10/6£156
Sun 2/806:30
SAN
-
DEN
Nonstop2h 33m
United Airlines
Wed 5/819:20
DEN
-
SAN
Nonstop2h 26m
United Airlines
Deal found 11/6£164
Wed 18/1119:14
SAN
-
DEN
Nonstop2h 36m
Alaska Airlines
Wed 25/1112:49
DEN
-
SAN
Nonstop2h 26m
Alaska Airlines
Deal found 14/6£166
Thu 26/1108:15
SAN
-
DEN
Nonstop2h 19m
Alaska Airlines
Mon 30/1119:04
DEN
-
SAN
Nonstop2h 23m
Alaska Airlines
Deal found 10/6£177
Sat 25/721:25
SAN
-
DEN
Nonstop2h 25m
Southwest
Wed 29/721:30
DEN
-
SAN
Nonstop2h 30m
Southwest
Deal found 12/6£188
Thu 6/820:01
SAN
-
DEN
Nonstop2h 29m
Alaska Airlines
Sun 9/806:00
DEN
-
SAN
Nonstop2h 34m
Alaska Airlines
Deal found 14/6£199
Fri 24/717:20
SAN
-
DEN
Nonstop2h 20m
Southwest
Sun 26/705:45
DEN
-
SAN
Nonstop2h 20m
Southwest
Deal found 13/6£207
Last-minute flights from San Diego to Denver
Discover last-minute flight deals from San Diego to Denver. Data last updated 14 June 2026 and is based on user searches.
Thu 2/718:27
SAN
-
DEN
1 stop5h 20m
United Airlines
Sun 5/707:40
DEN
-
SAN
Nonstop2h 22m
United Airlines
Deal found 9/6£207
Tue 7/714:40
SAN
-
DEN
2 stops7h 30m
Southwest
Wed 5/806:15
DEN
-
SAN
1 stop4h 20m
Southwest
Deal found 11/6£186
Tue 7/714:40
SAN
-
DEN
2 stops7h 30m
Southwest
Sun 12/705:45
DEN
-
SAN
Nonstop2h 20m
Southwest
Deal found 11/6£207
Wed 8/709:46
SAN
-
DEN
1 stop4h 07m
Delta
Wed 15/719:57
DEN
-
SAN
1 stop4h 45m
Delta
Deal found 14/6£192
Wed 8/708:40
SAN
-
DEN
1 stop3h 50m
Southwest
Mon 13/721:50
DEN
-
SAN
Nonstop2h 30m
Southwest
Deal found 11/6£204
Fri 10/714:55
SAN
-
DEN
Nonstop2h 25m
Southwest
Fri 17/718:55
DEN
-
SAN
Nonstop2h 20m
Southwest
Deal found 12/6£199
Sun 12/720:10
SAN
-
DEN
1 stop4h 25m
Southwest
Wed 15/710:10
DEN
-
SAN
1 stop4h 50m
Southwest
Deal found 12/6£210
Sat 18/706:25
SAN
-
DEN
Nonstop2h 38m
Frontier
Fri 24/722:29
DEN
-
SAN
Nonstop2h 22m
Frontier
Deal found 12/6£133
Tue 21/717:01
SAN
-
DEN
1 stop4h 00m
Delta
Fri 24/705:40
DEN
-
SAN
1 stop4h 01m
Delta
Deal found 12/6£203
Sat 25/721:25
SAN
-
DEN
Nonstop2h 25m
Southwest
Wed 29/721:30
DEN
-
SAN
Nonstop2h 30m
Southwest
Deal found 12/6£188
One-way flights from San Diego to Denver
Search for one-way flight options from San Diego to Denver. Find affordable one-way fares based on user searches. Data last updated 14 June 2026.
Tue 11/807:00
SAN
-
DEN
Nonstop2h 33m
Alaska Airlines
Deal found 11/6£65
Tue 29/917:45
SAN
-
DEN
Nonstop2h 20m
Southwest
Deal found 14/6£66
Tue 18/808:45
SAN
-
DEN
1 stop4h 25m
Southwest
Deal found 9/6£69
Sat 24/1012:40
SAN
-
DEN
1 stop6h 33m
United Airlines
Deal found 10/6£70
Sat 12/913:30
SAN
-
DEN
1 stop4h 40m
Delta
Deal found 12/6£74
Mon 7/1217:35
SAN
-
DEN
Nonstop2h 20m
Southwest
Deal found 10/6£78
Thu 10/1220:29
SAN
-
DEN
Nonstop2h 22m
Alaska Airlines
Deal found 11/6£78
Thu 20/817:01
SAN
-
DEN
1 stop4h 54m
Delta
Deal found 10/6£81
Sat 8/810:35
SAN
-
DEN
1 stop4h 45m
Southwest
Deal found 10/6£85
Fri 4/1206:15
SAN
-
DEN
1 stop4h 40m
Delta
Deal found 10/6£86
Wed 9/1217:35
SAN
-
DEN
Nonstop2h 20m
Southwest
Deal found 12/6£89
Sat 5/1208:15
SAN
-
DEN
Nonstop2h 19m
Alaska Airlines
Deal found 10/6£91
Find flight deals from San Diego to Denver
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Denver (DEN). 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 14 June 2026.
Customise your flight search to find flights from San Diego to Denver 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 858,174 searches. Data last updated 14 June 2026.
Use the filters below to find and compare flights from San Diego to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Wed 9/9
13:30-19:10
1 stop4h 40m
Denver Intl
Mon 14/9
11:00-15:56
1 stop5h 56m
£154
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Fri 11/9
10:54-18:21
1 stop6h 27m
Denver Intl
Fri 18/9
05:30-08:41
1 stop4h 11m
£162
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Thu 16/7
06:15-14:53
1 stop7h 38m
Denver Intl
Thu 16/7
19:09-23:50
1 stop5h 41m
£214
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Tue 7/7
14:40-23:10
2 stops7h 30m
Denver Intl
Sun 12/7
06:05-09:00
1 stop3h 55m
£256
Fastest return journey
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Thu 25/6
18:55-22:27
Nonstop2h 32m
Denver Intl
Sat 27/6
05:15-09:59
1 stop5h 44m
£371
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Mon 19/10
10:00-19:10
2 stops8h 10m
Denver Intl
Thu 22/10
06:30-10:30
1 stop5h 00m
£492
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Fri 6/11
15:59-23:00
1 stop6h 01m
Denver Intl
Sun 8/11
12:45-18:55
2 stops7h 10m
£492
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Sat 18/7
10:54-20:01
2 stops8h 07m
Denver Intl
Thu 23/7
19:09-23:50
1 stop5h 41m
£518
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Thu 23/7
06:15-14:53
1 stop7h 38m
Denver Intl
Sat 25/7
07:05-15:08
2 stops9h 03m
£518
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Sat 18/7
06:15-14:53
2 stops7h 38m
Denver Intl
Fri 24/7
19:09-23:49
1 stop5h 40m
£518
Flights are sorted by cheapest return flights first.
Deals found on 12/6
Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3
Best time to book a flight from San Diego to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from San Diego with our price prediction graph.
SAN-DEN
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 San Diego to Denver
Prices
Airlines
Delays
How far ahead should I book a flight from San Diego to Denver?
The best time to book flights from San Diego to Denver is 62 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San Diego to Denver?
Currently, February is the cheapest month in which you can book a flight from San Diego to Denver (average of £95). Flying from San Diego to Denver in June is currently the most expensive (average of £199). 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 SAN to DEN?
Find hourly flight availability from San Diego to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 June 2026.
When flying from San Diego to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 67% versus a flight in the afternoon.
How much does it cost for a return flight from San Diego to Denver?
Weekly flight availability from San Diego to Denver
Explore weekly flight availability from San Diego to Denver. 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 14 June 2026.
The most flights from SAN to DEN are scheduled on a Friday (33 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 San Diego to Denver delayed?
About 16% of weekly flights between San Diego and Denver have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for San Diego to Denver flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Diego to Denver flights?
Over the past year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from San Diego to Denver. 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 San Diego to Denver flight route?
The San Diego to Denver Intl flight path 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 San Diego to Denver?
A quick flight from San Diego to Denver can take about 4h 40m. Delta provides one of the quickest options available for as low as £154. There are 852 mi between San Diego and Denver. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most reliable airlines from San Diego to Denver?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Diego to Denver on time: SWISS (100%), Lufthansa (94%), United Airlines (94%).
Can I find deals for flights from San Diego to Denver that include hotel bookings?
Yes. In addition to deals on San Diego to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Diego to Denver?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Denver.
Can I find deals for business class flights from San Diego to Denver?
Yes. Cheapflights offers flight deals from San Diego to Denver 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 San Diego to Denver?
Currently, February is the cheapest month in which you can book a flight from San Diego to Denver (average of £95). Flying from San Diego to Denver in June is currently the most expensive (average of £199). 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.
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 San Diego to Denver?
Deals for San Diego to Denver flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from San Diego to Denver?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Diego to Denver.
Can Cheapflights find flights from San Diego to Denver with no change fees?
Yes! Cheapflights helps users easily find flights from San Diego to Denver with no change fees.
Can Cheapflights notify me if prices for flights from San Diego to Denver become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from San Diego today and book when prices fit your budget.
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