Cheap flights from San Diego to Denver (SAN - DEN)

SAN — DEN
Sep 27 — Oct 41

The best prices from San Diego to Denver Intl are usually found in October or January, booked 35 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

How to find the cheapest flight from San Diego (SAN) to Denver (DEN)

All the information you need to plan the best SAN to DEN flight in 2022: compare San Diego to Denver flight prices with the expected peak season, weather and rainfall in Denver.

SAN - DEN

Price

$134 - $288

DEN

Temperature

30.2 - 73.4 °F

DEN

Rainfall

0.5 - 2.3 inches

Popular inJuneHigh demand for flights, 29% potential price rise
Cheapest inOctoberBest time to find cheap flights, 35% potential price drop
Round-trip from$134From San Diego to Denver Intl
One-way from$68One-way flight from San Diego to Denver Intl

What is the cheapest day to fly round-trip from San Diego to Denver?

Users have found that flying from San Diego to Denver on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from San Diego to Denver?

To save up to 31% on this flight, we recommend booking at least 31 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Diego to Denver from $213 1-2 weeks out and tickets from $255 for flights departing within the next 72 hours.

What is the cheapest month to fly from San Diego to Denver?

The best pricing can be found in the month of October. Prices to Denver from San Diego average $206. You can even find prices in October for less than $206, as users have found deals to Denver from as low as $83. The month of June appears to be one of the more expensive times to travel to Denver from San Diego. Flying in the targeted month can save you up to 39%.

When is the cheapest time to fly from San Diego to Denver (SAN - DEN)?

It’s typically best to fly out from San Diego to Denver in the evening. Doing so could potentially save you 38% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from San Diego to Denver in September, October 2022

The best prices found for SAN to DEN flights for September, October
Oct 5 - Oct 10
SAN

San Diego

DEN

Denver Intl

1 stop

11h 05m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$82

Spirit Airlines

Pick Dates

Deal found 9/20/22

Oct 6 - Oct 9
SAN

San Diego

DEN

Denver Intl

1 stop

4h 43m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$85

Spirit Airlines

Pick Dates

Deal found 9/20/22

Oct 7 - Oct 10
SAN

San Diego

DEN

Denver Intl

1 stop

4h 43m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$86

Spirit Airlines

Pick Dates

Deal found 9/19/22

San Diego to Denver 2022 flight deals

Cheap flights to Denver from San Diego found for this year
Oct 5 - Oct 10
SAN

San Diego

DEN

Denver Intl

1 stop

11h 05m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$82

Spirit Airlines

Pick Dates

Deal found 9/20/22

Oct 6 - Oct 9
SAN

San Diego

DEN

Denver Intl

1 stop

4h 43m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$85

Spirit Airlines

Pick Dates

Deal found 9/20/22

Oct 7 - Oct 10
SAN

San Diego

DEN

Denver Intl

1 stop

4h 43m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$86

Spirit Airlines

Pick Dates

Deal found 9/19/22

Cheap Spirit Airlines flights from San Diego to Denver

Oct 5 - Oct 10
SAN

San Diego

DEN

Denver Intl

1 stop

11h 05m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$82

Spirit Airlines

Pick Dates

Deal found 9/20/22

Oct 6 - Oct 9
SAN

San Diego

DEN

Denver Intl

1 stop

4h 43m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$85

Spirit Airlines

Pick Dates

Deal found 9/20/22

Oct 7 - Oct 10
SAN

San Diego

DEN

Denver Intl

1 stop

4h 43m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$86

Spirit Airlines

Pick Dates

Deal found 9/19/22

  • If you’re traveling from San Diego to Denver, one of the more common airlines traveling that route is Spirit Airlines. San Diego to Denver flights are typically 24% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $339.98 RT. The cheapest Spirit Airlines flight found for this route was $130. When traveling from San Diego to Denver on Spirit Airlines, the most popular airport to depart from is San Diego Airport and the most popular airport to arrive at is Denver Intl Airport. When flying from San Diego to Denver, Spirit Airlines flights are 24% more popular than any other airline flying that same route.

Cheap Frontier flights from San Diego to Denver

Oct 26 - Nov 2
SAN

San Diego

DEN

Denver Intl

Nonstop

2h 29m
DEN

Denver Intl

SAN

San Diego

Nonstop

2h 29m
$99

Frontier

Pick Dates

Deal found 9/20/22

Oct 8 - Oct 11
SAN

San Diego

DEN

Denver Intl

Nonstop

2h 29m
DEN

Denver Intl

SAN

San Diego

Nonstop

2h 27m
$115

Frontier

Pick Dates

Deal found 9/19/22

Sep 29 - Oct 3
SAN

San Diego

DEN

Denver Intl

1 stop

9h 49m
DEN

Denver Intl

SAN

San Diego

Nonstop

2h 21m
$119

Frontier

Pick Dates

Deal found 9/19/22

  • One of the most popular airlines traveling from San Diego to Denver is Frontier. Flights from Frontier traveling this route typically cost $301.20 RT. This price is typically 33% cheaper than other airlines that offer San Diego to Denver flights. When booking this route, the cheapest RT price found was $118. San Diego Airport is the most common San Diego airport to take off from when flying to Denver. Denver Intl Airport is the most popular arrival airport in Denver. When flying from San Diego to Denver, Frontier flights are 23% more popular than any other airline flying that same route.

Non-stop flights to Denver from San Diego

Save time with San Diego to Denver direct flight deals
Dec 7 - Dec 10
SAN

San Diego

DEN

Denver Intl

Nonstop

2h 26m
DEN

Denver Intl

SAN

San Diego

Nonstop

2h 37m
$91

Frontier

Pick Dates

Deal found 9/20/22

Oct 26 - Nov 2
SAN

San Diego

DEN

Denver Intl

Nonstop

2h 29m
DEN

Denver Intl

SAN

San Diego

Nonstop

2h 29m
$99

Frontier

Pick Dates

Deal found 9/20/22

Nov 5 - Nov 15
SAN

San Diego

DEN

Denver Intl

Nonstop

2h 24m
DEN

Denver Intl

SAN

San Diego

Nonstop

2h 30m
$100

Frontier

Pick Dates

Deal found 9/21/22

Last minute flights from San Diego to Denver

Late deals on return flights to Denver from San Diego, departing today and this week
Sep 29 - Oct 3
SAN

San Diego

DEN

Denver Intl

1 stop

25h 34m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 07m
$87

Spirit Airlines

Pick Dates

Deal found 9/20/22

Sep 29 - Oct 10
SAN

San Diego

DEN

Denver Intl

1 stop

11h 05m
DEN

Denver Intl

SAN

San Diego

1 stop

11h 21m
$93

Spirit Airlines

Pick Dates

Deal found 9/19/22

Sep 30 - Oct 4
SAN

San Diego

DEN

Denver Intl

1 stop

19h 53m
DEN

Denver Intl

SAN

San Diego

1 stop

7h 00m
$94

Spirit Airlines

Pick Dates

Deal found 9/19/22

One-way flights to Denver from San Diego

The cheapest one-way flights from San Diego to Denver
Oct 6
SAN

San Diego

DEN

Denver Intl

1 stop

4h 43m
$44

Spirit Airlines

Pick Dates

Deal found 9/19/22

Oct 19
SAN

San Diego

DEN

Denver Intl

1 stop

12h 53m
$45

Spirit Airlines

Pick Dates

Deal found 9/21/22

Sep 29
SAN

San Diego

DEN

Denver Intl

1 stop

5h 08m
$47

Spirit Airlines

Pick Dates

Deal found 9/20/22

Related info for your journey

Useful info, stats and facts about San Diego to Denver flights.

What airports do I use to fly from San Diego to Denver?

You will need to book a flight from San Diego to Denver Intl if you want to fly from San Diego to Denver. At least 9 different airlines have flights from San Diego (SAN) to Denver Intl (DEN) on a regular basis. There are 23 flights to Denver from the San Diego airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SAN to DEN to be around 2h 13m.

Which airlines flying from San Diego to Denver Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from San Diego to Denver Intl that may be offering flexible cancellation policies are Frontier, United Airlines, and Spirit Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from San Diego to Denver for under $100 on Cheapflights?

Yes, there are multiple flights from San Diego to Denver for under $100. The cheapest flight booked recently is on Spirit Airlines for just $82, but on average you can expect to pay $95.

Are there nonstop flights from San Diego to Denver for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from San Diego to Denver under $100. A good price for a nonstop flight from San Diego to Denver is less than $116.

Are there last-minute flights available from San Diego to Denver for under $100?

There are currently 20+ open flights from San Diego to Denver within the next 7 days for less than $100.

What days are nonstop flights available from San Diego to Denver?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

How popular is this San Diego to Denver flight route?

This flight path from San Diego to Denver Intl was viewed by 84 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from San Diego to Denver on average per day?

On average 14 flights depart from San Diego to Denver per day.
Early Morning (Midnight to 6am) - 29% of flight departures
Morning (6am - Noon) - 64% of flight departures
Afternoon (Noon - 6pm) - 7% of flight departures

How long is the flight from San Diego to Denver?

Spirit Airlines and Frontier can get you from San Diego to Denver in just under 2h 29m. Your travel time can differ by up to 8h 36m. There are 856 mi between San Diego and Denver. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from San Diego to Denver round-trip?

Spirit Airlines, at $82, was found to be the cheapest airline from San Diego to Denver. An alternate airline flying to your destination would be Frontier. Spirit Airlines is priced at 60% lower than the current average price of a flight leaving 3 months from now.

What are the most popular airlines that fly from San Diego to Denver?

The most popular airlines flying from San Diego to Denver are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

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: Air Canada (81%), Lufthansa (80%), Frontier (80%).

What are the cheapest flights from San Diego to Denver?

While on average a flight from San Diego to Denver is generally $443, our data shows the cheapest flight currently is $51. When looking at the most popular route, (San Diego - Denver Intl), you can expect to pay $91 for that flight.

Alternative routes for San Diego to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Diego to Denver

The chart below displays the airlines Cheapflights users traveling from San Diego to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$13Average$23FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
DeltaCheapest$75Average$287FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
FrontierCheapest$77Average$184FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
Spirit AirlinesCheapest$81Average$151FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
American AirlinesCheapest$117Average$307FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
United AirlinesCheapest$118Average$301FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights

Hourly flight availability from San Diego to Denver

See what time of day planes typically take off from San Diego to Denver
14%of flight departuresEarly morningMidnight to 6 am
50%of flight departuresMorning6 am to noon
27%of flight departuresAfternoonNoon to 6 pm
9%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Diego to Denver

See how many times per day planes take to the skies headed from San Diego to Denver
Sunday5daily flights
Monday31daily flights
Tuesday30daily flights
Wednesday30daily flights
Thursday29daily flights
Friday29daily flights
Saturday9daily flights