Cheap flights from San Diego to Denver from C$ 138
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
15 Oct — 22 Oct1
Round-trip
1 adult
Economy
Round-trip
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 Wednesday or Monday and return on a Wednesday
Cheap flight deals from San Diego to Denver
Enter your travel dates to find the best prices.
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Last-minute
One-way
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 15 September 2026.
Tue 20/103:20 p.m. -
Nonstop2h 15m
Wed 21/104:05 p.m. -
Nonstop2h 30m
Deal found 12/9C$ 274
Wed 21/1011:50 a.m. -
Nonstop2h 25m
Sat 24/108:45 a.m. -
1 stop4h 35m
Deal found 12/9C$ 282
Sat 10/107:00 a.m. -
Nonstop2h 33m
Thu 15/109:00 p.m. -
Nonstop2h 27m
Deal found 10/9C$ 288
Tue 10/1112:35 p.m. -
1 stop4h 05m
Wed 11/113:45 p.m. -
1 stop4h 10m
Deal found 12/9C$ 289
Tue 10/119:20 a.m. -
1 stop3h 45m
Sat 14/1112:05 p.m. -
1 stop4h 50m
Deal found 14/9C$ 296
Tue 20/106:15 a.m. -
1 stop4h 41m
Sat 24/107:10 p.m. -
1 stop4h 33m
Deal found 13/9C$ 301
Sun 22/118:00 p.m. -
Nonstop2h 25m
Tue 1/126:10 a.m. -
Nonstop2h 30m
Deal found 14/9C$ 306
Tue 13/105:01 p.m. -
1 stop4h 39m
Wed 21/107:10 p.m. -
1 stop4h 45m
Deal found 15/9C$ 307
Fri 23/1012:45 p.m. -
1 stop4h 00m
Tue 27/102:10 p.m. -
1 stop5h 40m
Deal found 12/9C$ 308
Mon 26/109:15 p.m. -
Nonstop2h 30m
Fri 30/105:00 p.m. -
1 stop4h 05m
Deal found 11/9C$ 310
Mon 23/114:18 p.m. -
Nonstop2h 27m
Fri 27/115:00 a.m. -
1 stop6h 12m
Deal found 11/9C$ 315
Best flights from San Diego to Denver
Discover carefully curated flight deals from San Diego to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.
Sat 10/107:00 a.m. -
Nonstop2h 33m
Thu 15/109:00 p.m. -
Nonstop2h 27m
Deal found 10/9C$ 288
Tue 20/104:40 p.m. -
1 stop4h 15m
Sat 24/108:45 a.m. -
1 stop4h 35m
Deal found 13/9C$ 295
Wed 11/111:31 p.m. -
1 stop5h 58m
Sun 15/115:35 a.m. -
1 stop4h 13m
Deal found 13/9C$ 315
Mon 23/119:43 a.m. -
1 stop6h 27m
Thu 3/126:45 a.m. -
1 stop4h 40m
Deal found 14/9C$ 329
Fri 9/109:15 p.m. -
Nonstop2h 30m
Mon 12/108:50 p.m. -
1 stop4h 20m
Deal found 14/9C$ 338
Wed 23/126:45 a.m. -
Nonstop2h 31m
Sun 27/129:01 p.m. -
Nonstop2h 31m
Deal found 10/9C$ 375
Fri 9/102:33 p.m. -
Nonstop2h 28m
Mon 12/106:59 p.m. -
Nonstop2h 35m
Deal found 15/9C$ 781
Sat 24/1010:57 a.m. -
1 stop6h 12m
Sun 25/105:25 a.m. -
1 stop8h 00m
Deal found 14/9C$ 413
Tue 10/1112:37 p.m. -
1 stop6h 23m
Sat 14/117:40 a.m. -
1 stop5h 17m
Deal found 11/9C$ 433
Thu 17/122:10 p.m. -
1 stop3h 50m
Mon 21/1212:25 p.m. -
2 stops5h 00m
Deal found 12/9C$ 449
Sun 22/1112:15 p.m. -
1 stop3h 50m
Wed 25/1112:25 p.m. -
2 stops5h 00m
Deal found 13/9C$ 582
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 15 September 2026.
Tue 20/103:20 p.m. -
Nonstop2h 15m
Wed 21/104:05 p.m. -
Nonstop2h 30m
Deal found 12/9C$ 274
Sat 10/107:00 a.m. -
Nonstop2h 33m
Thu 15/109:00 p.m. -
Nonstop2h 27m
Deal found 10/9C$ 288
Wed 27/13:10 p.m. -
Nonstop2h 20m
Mon 1/28:50 a.m. -
Nonstop2h 30m
Deal found 14/9C$ 300
Mon 5/109:15 p.m. -
Nonstop2h 30m
Tue 13/106:35 a.m. -
Nonstop2h 30m
Deal found 13/9C$ 301
Sun 22/118:00 p.m. -
Nonstop2h 25m
Tue 1/126:10 a.m. -
Nonstop2h 30m
Deal found 14/9C$ 306
Thu 4/25:40 p.m. -
Nonstop2h 25m
Mon 8/25:15 p.m. -
Nonstop2h 25m
Deal found 14/9C$ 321
Sat 10/105:45 p.m. -
Nonstop2h 15m
Sat 17/104:10 p.m. -
Nonstop2h 30m
Deal found 12/9C$ 322
Thu 4/25:40 p.m. -
Nonstop2h 25m
Sun 7/21:30 p.m. -
Nonstop2h 25m
Deal found 13/9C$ 325
Fri 23/104:11 p.m. -
Nonstop2h 29m
Sun 25/107:05 p.m. -
Nonstop2h 31m
Deal found 14/9C$ 328
Fri 16/106:50 p.m. -
Nonstop2h 29m
Sun 18/107:43 a.m. -
Nonstop2h 22m
Deal found 13/9C$ 329
Fri 12/26:30 p.m. -
Nonstop2h 13m
Mon 15/28:00 a.m. -
Nonstop2h 17m
Deal found 14/9C$ 338
Mon 23/116:45 a.m. -
Nonstop2h 34m
Mon 30/117:40 a.m. -
Nonstop2h 30m
Deal found 10/9C$ 357
Last-minute flights from San Diego to Denver
Discover last-minute flight deals from San Diego to Denver. Data last updated 15 September 2026 and is based on user searches.
Mon 5/109:15 p.m. -
Nonstop2h 30m
Tue 13/106:30 a.m. -
1 stop5h 15m
Deal found 13/9C$ 315
Sat 10/107:00 a.m. -
Nonstop2h 33m
Thu 15/109:00 p.m. -
Nonstop2h 27m
Deal found 10/9C$ 288
Sat 10/105:45 p.m. -
Nonstop2h 15m
Sat 17/104:10 p.m. -
Nonstop2h 30m
Deal found 12/9C$ 322
Tue 13/105:01 p.m. -
1 stop4h 39m
Wed 21/107:10 p.m. -
1 stop4h 45m
Deal found 15/9C$ 307
Tue 13/105:01 p.m. -
1 stop4h 39m
Mon 19/107:10 p.m. -
1 stop5h 32m
Deal found 15/9C$ 328
Tue 20/103:20 p.m. -
Nonstop2h 15m
Wed 21/104:05 p.m. -
Nonstop2h 30m
Deal found 12/9C$ 274
Tue 20/106:15 a.m. -
1 stop4h 41m
Sat 24/107:10 p.m. -
1 stop4h 33m
Deal found 13/9C$ 301
Wed 21/1011:50 a.m. -
Nonstop2h 25m
Sat 24/108:45 a.m. -
1 stop4h 35m
Deal found 12/9C$ 282
Fri 23/1012:45 p.m. -
1 stop4h 00m
Tue 27/102:10 p.m. -
1 stop5h 40m
Deal found 12/9C$ 308
Mon 26/109:15 p.m. -
Nonstop2h 30m
Fri 30/105:00 p.m. -
1 stop4h 05m
Deal found 11/9C$ 310
Sat 31/106:55 a.m. -
1 stop4h 40m
Mon 2/118:30 a.m. -
1 stop4h 45m
Deal found 14/9C$ 321
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 15 September 2026.
Sat 23/15:35 p.m. -
Nonstop2h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/9C$ 138
Sat 17/107:00 a.m. -
Nonstop2h 33m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 140
Wed 28/103:20 p.m. -
Nonstop2h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 142
Wed 16/129:20 a.m. -
1 stop3h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 149
Wed 10/35:00 p.m. -
1 stop4h 01m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 151
Sat 13/22:30 p.m. -
1 stop6h 31m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 154
Fri 23/1012:45 p.m. -
1 stop4h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/9C$ 158
Mon 12/109:15 p.m. -
Nonstop2h 30m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 161
Sat 12/129:53 a.m. -
1 stop6h 26m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 165
Thu 17/123:00 p.m. -
1 stop4h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 168
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 15 September 2026.
Customize 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 7,457,451 searches. Data last updated 15 September 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 round-trip
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Sat 23/1
6:50 a.m.-12:20 p.m.
1 stop4h 30m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 144
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Sat 31/10
12:37 p.m.-8:00 p.m.
1 stop6h 23m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 147
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Tue 13/10
7:00 a.m.-10:33 a.m.
Nonstop2h 33m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 151
Quickest round-trip
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Mon 9/11
8:00 p.m.-11:20 p.m.
Nonstop2h 20m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 151
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Wed 10/3
5:00 p.m.-10:01 p.m.
1 stop4h 01m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 151
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Mon 19/10
6:50 p.m.-10:19 p.m.
Nonstop2h 29m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 151
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Fri 23/10
12:45 p.m.-5:45 p.m.
1 stop4h 00m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 158
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Wed 14/10
3:59 p.m.-11:53 p.m.
1 stop6h 54m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 165
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Wed 11/11
1:31 p.m.-8:29 p.m.
1 stop5h 58m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 165
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Fri 23/10
10:57 a.m.-6:09 p.m.
1 stop6h 12m
Denver Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 165
Flights are sorted by cheapest round-trip flights first.
Deals found on 12/9
Showing 1-10 of 23 resultsSorted by cheapest first
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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 round-trip 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?
Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 C$ 176). Flying from San Diego to Denver in June is currently the most expensive (average of C$ 388). 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 15 September 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 at noon, which can drop the price by up to 41% versus a flight in the morning.
How much does it cost to fly round-trip from San Diego to Denver?
Airfare is typical for this route at the moment.
San Diego to Denver flights typically cost between C$ 201 and C$ 408 in October.The cheapest round-trip price found within the last 5 days was C$ 274 on Southwest (20 Oct-21 Oct).
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 15 September 2026.
The most flights from SAN to DEN are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 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 has had the lowest number of delays on this route, with just 10% 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?
Within the past month, 13 users have taken a look at flights from San Diego to Denver Intl.
How long is the flight from San Diego to Denver?
A quick flight from San Diego to Denver can take about 2h 33m. United Airlines provides one of the quickest options available for as low as C$ 288. The distance between San Diego and Denver is about 1371 km. Both multi-stop and direct flights can be found to your destination and back.
What are the most reliable airlines from San Diego to Denver?
The top 3 most reliable airlines when flying from San Diego to Denver are Sun Country Air (100%), Lufthansa (80%) and Air Canada (77%).
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 vacation 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 C$ 176). Flying from San Diego to Denver in June is currently the most expensive (average of C$ 388). 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.
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.
Find the best flight deals on Cheapflights, where travelers 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?
Cheapflights helps you search for flights from San Diego to Denver 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 San Diego to Denver?
Cheapflights simply makes it quick and affordable to book flights from San Diego to Denver 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 San Diego to Denver with no change fees?
Need flexible booking options for your flight to Denver from San Diego? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from San Diego to Denver become cheaper?
Of course! You can now track prices for flights from San Diego to Denver and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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