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

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The best prices from San Diego to Denver are usually found in August or January, booked 16 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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

SAN - DEN
Price
$136 - $247
DEN
Temperature
44.6 - 89.6 °F
DEN
Rainfall
0.5 - 2.7 inches

Popular in

December

High demand for flights, 30% potential price rise

Cheapest in

August

Best time to find cheap flights, 21% potential price drop

Round-trip from

$136

From San Diego to Denver

One-way from

$68

One-way flight from San Diego to Denver

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from San Diego to Denver?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

To save on the cost of your flight from San Diego to Denver, book at least 14 days before your planned departure. Booking around this time can save you about 12% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $88 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $106.

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

Our data shows that August tends to be the cheapest month to fly to Denver from San Diego. Users have commonly found prices around $98 for the month, but tickets can be as low as $36. Due to multiple factors, prepare for potentially higher prices in December.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 31% on flights from San Diego to Denver by exploring options for tickets in the evening.

Cheap flights from San Diego to Denver in January, February 2021

The best prices found for SAN to DEN flights for January, February
25 Feb - 28 Feb
$62pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
25 Feb - 8 Mar
$65pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
26 Feb - 9 Mar
$66pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

San Diego to Denver 2021 flight deals

Cheap flights to Denver from San Diego found for this year
25 Feb - 28 Feb
$62pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
18 Mar - 31 Mar
$63pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
2 Mar - 9 Mar
$64pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

Non-stop flights to Denver from San Diego

Save time with San Diego to Denver direct flight deals
25 Feb - 28 Feb
$62pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
18 Mar - 31 Mar
$63pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
2 Mar - 9 Mar
$64pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

Last minute flights from San Diego to Denver

Late deals on round-trip flights to Denver from San Diego, departing today and this week
27 Jan - 31 Jan
$67pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
28 Jan - 31 Jan
$68pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
28 Jan - 4 Feb
$69pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

One-way flights to Denver from San Diego

The cheapest one-way flights from San Diego to Denver
7:04 am - 12:56 pm
Multiple Airlines
1 Stop
4h 52m
SAN - DEN
Multiple Airlines
$68
Gotogate
3:25 pm - 12:04 pm
Spirit Airlines
2 Stops
19h 39m
SAN - DEN
Spirit Airlines
$69
Gotogate
1:48 am - 1:08 pm
American Airlines
2 Stops
10h 20m
SAN - DEN
American Airlines

Related info for your journey

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

Flight FAQs

From San Diego to Denver

Are flight prices decreasing from San Diego to Denver due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Diego and Denver for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from San Diego to Denver Intl to control the spread of COVID-19?

New policies can now be found on Delta to help keep travelers safe while flying. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from San Diego to Denver Intl. Policies will vary by airline.

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 Frontier for just $62, but on average you can expect to pay $73.

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 $73.

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.

How popular is this flight route?

This flight path from San Diego to Denver Intl was viewed by 228 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in San Diego or Denver?

Expected rainfall in San Diego is less than in Denver. You can expect this to be the case over the next 12 days.

Is San Diego weather warmer or cooler than Denver?

With an average temperature of 90 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in Denver are hotter than in San Diego.

How long is the flight from San Diego to Denver?

There are many flights that can get you from San Diego to Denver in 2h 28m. Fly via Frontier to get the fastest option. Generally, flights for this route are nonstop.

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

Currently priced at $62, Frontier will fly you from San Diego to Denver and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Users have found that Frontier is 63% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from San Diego to Denver one-way?

One-way options have recently been found by users for as low as $27 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $52 and American Airlines from $66 one-way.

Alternative routes for San Diego to Denver

Destination information for Denver

Things to know before you go. Useful info for your trip from San Diego to Denver
Flight duration
2h 30m
Average temperature for January in Denver
46.4 °F
Avg rainfall for January in Denver
0.5 ″

Airports servicing San Diego

Airports servicing Denver

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.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$63 $159 No cancel fee 65%
Delta
$82 $161 No cancel fee N/A
Frontier
$77 $174 No cancel fee 62%
American Airlines
$57 $177 No cancel fee 71%
United Airlines
$88 $240 No cancel fee 69%
Southwest
$130 $340 No cancel fee 63%

Hourly flight availability from San Diego to Denver

Morning 6 AM to noon 57% of SAN to DEN departures
Afternoon Noon to 6 PM 27% of SAN to DEN departures
Early morning Midnight to 6 AM 16% of SAN to DEN departures
Evening 6 PM to midnight 0% of SAN to DEN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Diego to Denver
Sunday
9 daily flights
Monday
10 daily flights
Tuesday
9 daily flights
Wednesday
10 daily flights
Thursday
9 daily flights
Friday
10 daily flights
Saturday
10 daily flights
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