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Cheap flights from San Diego to Denver from £83

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
25 fev — 4 mar1
1 adult

The best prices from San Diego to Denver Intl are usually found in April or January, booked 71 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap 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 20 fevereiro 2025.

Round-trip from

£168

One-way from

£83

Popular in

December

Cheapest in

April

Average price

£135

Good one-way deal

£122 or less
Southwest
  • Southwest
  • 9/4-14/4
  • 2 total stops
  • 8h 10m total
  • San Diego to Denver
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Southwest
  • Southwest
  • 9/4
  • 1 total stop
  • 4h 05m total
  • San Diego to Denver
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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Price to beat on a one-way flight from San Diego to Denver Intl.
Search Deals

Find flight deals from San Diego to Denver

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 20 fevereiro 2025.

qua 9/417:40SAN - DEN
1 stop4h 05mSouthwest
seg 14/419:55DEN - SAN
1 stop4h 05mSouthwest
Deal found 19/2£168
sex 2/520:44SAN - DEN
1 stop13h 37mAlaska Airlines
seg 5/518:37DEN - SAN
1 stop6h 22mAlaska Airlines
Deal found 19/2£171
ter 18/307:00SAN - DEN
1 stop8h 12mHawaiian Airlines
ter 25/307:00DEN - SAN
1 stop8h 21mHawaiian Airlines
Deal found 20/2£179
seg 14/406:15SAN - DEN
1 stop5h 41mDelta
sex 25/407:05DEN - SAN
1 stop4h 17mDelta
Deal found 19/2£194
ter 28/1007:00SAN - DEN
Nonstop2h 23mUnited Airlines
seg 3/1108:00DEN - SAN
Nonstop2h 17mUnited Airlines
Deal found 19/2£244

Find flights from San Diego to Denver within your budget

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 20 fevereiro 2025.

Fly from

San Diego

Fly to

Denver

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

qua 9/4

17:40-22:45

1 stop4h 05m

Denver Intl

seg 14/4

19:55-23:00

1 stop4h 05m

£168

San DiegoDenver

SAN - DEN

SANDEN

San Diego

sex 2/5

20:44-11:21

1 stop13h 37m

Denver Intl

seg 5/5

18:37-23:59

1 stop6h 22m

£171

San DiegoDenver

SAN - DEN

SANDEN

San Diego

ter 18/3

07:00-16:12

1 stop8h 12m

Denver Intl

ter 25/3

07:00-14:21

1 stop8h 21m

£179

San DiegoDenver

SAN - DEN

SANDEN

San Diego

seg 14/4

06:15-12:56

1 stop5h 41m

Denver Intl

sex 25/4

07:05-10:22

1 stop4h 17m

£194

San DiegoDenver

SAN - DEN

SANDEN

San Diego

sex 11/7

18:35-22:03

Nonstop2h 28m

Denver Intl

seg 14/7

16:00-20:39

1 stop5h 39m

£248

San DiegoDenver

SAN - DEN

SANDEN

San Diego

qua 9/4

17:40-22:45

1 stop4h 05m

£83

San DiegoDenver

SAN - DEN

SANDEN

San Diego

ter 22/4

10:52-21:15

1 stop9h 23m

£86

San DiegoDenver

SAN - DEN

SANDEN

San Diego

ter 1/4

17:15-22:31

1 stop4h 16m

£87

San DiegoDenver

SAN - DEN

SANDEN

San Diego

qui 13/3

16:05-23:49

1 stop6h 44m

£102

San DiegoDenver

SAN - DEN

SANDEN

San Diego

seg 17/3

16:05-19:31

Nonstop2h 26m

£116

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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.
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.

Travel insights for flights from San Diego to Denver

Get recent, data-driven insights about flights from San Diego to Denver including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from San Diego to Denver. Price data was last updated on 14 February 2025.

The best time to book flights from San Diego to Denver is 35 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, January is the cheapest month in which you can book a flight from San Diego to Denver (average of £667). Flying from San Diego to Denver in July is currently the most expensive (average of £1,030). 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 20 fevereiro 2025.

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 midday, which can drop the price by up to 59% versus a flight in the morning.

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 20 fevereiro 2025.

The most flights from SAN to DEN 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 (10 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 13.0 - 58.0 inches per month. May is typically the wettest month, when rainfall can reach 58.0 mm. January is typically the driest time to visit Denver when rainfall is around 13.0 mm.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated 20 fevereiro 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from San Diego to Denver to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,411 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Southwest
8.1
Very Good
4,411 reviews
Southwest
8.1
Very Good
4,411 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Alaska Airlines
8.0
Very Good
9,692 reviews
Southwest
8.1
Very Good
4,411 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Delta
8.0
Very Good
8,220 reviews
Southwest
8.1
Very Good
4,411 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very Good
4,411 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very Good
4,411 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

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.

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

    Denver Intl is the airport most travelers will use when flying to Denver from San Diego. Booking flights from San Diego (SAN) to Denver Intl (DEN) should be relatively easy as there are 22 daily flights to Denver from 1 airline. 2h 25m is how long a flight from San Diego to Denver Intl will take if you book a nonstop flight.

  • How popular is this San Diego to Denver flight route?

    The San Diego to Denver Intl flight path was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Our cheapest airline available from San Diego to Denver is Southwest. Our recent data shows that you can find tickets from as low as £168 on this airline. Additional options worth looking into are Alaska Airlines and Hawaiian Airlines, starting at £171 and £179 round-trip.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at £83. Alaska Airlines flights start at £86 while deals on Delta start at £87 one-way.

  • 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: Copa Airlines (90%), Air Canada (86%), Frontier (81%).

  • What are the cheapest flights from San Diego to Denver?

    Looking at all options, your cheapest flight can be booked for £104. While the most popular route (San Diego - Denver Intl) can be booked for £267 on average our data indicates £122 when flying from San Diego to Denver.

  • 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, January is the cheapest month in which you can book a flight from San Diego to Denver (average of £667). Flying from San Diego to Denver in July is currently the most expensive (average of £1,030). 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.

See more FAQs

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Alternative routes for San Diego to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Denver flights
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Top airline flying from San Diego to Denver

Discover the top airline that operate flights from San Diego to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 fevereiro 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest£46Average£196FlexibilityNo cancel feeOn-time62%
Search Frontier flights

Fly with Cheapflights

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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