Denver

$44+ Cheap flights from San Diego to Denver (SAN - DEN)

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
Dec 29 — Jan 51
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The best prices from San Diego to Denver Intl are usually found in January or April, booked 53 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

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 December 24, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$77
(eDestinos)

One-way from

$44
(Frontier)

Popular in

December

Cheapest in

January

Average price

$242
Provider with most accurate pricing for San Diego-Denver Intl flight deals.
Provider most trusted by Cheapflights users for San Diego-Denver Intl flights.
From San Diego to Denver Intl
One-way flight from San Diego to Denver Intl
High demand for flights, 9% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for round-trip flights in December 2024

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 December 24, 2024.

This eDestinos deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:26 pmSAN - DEN
1 stop10h 28mFrontier
Mon 1/610:20 pmDEN - SAN
Nonstop2h 34mFrontier
Deal found 12/23$174
This eDestinos deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:15 amSAN - DEN
2 stops21h 07mMultiple Airlines
Mon 1/65:30 amDEN - SAN
1 stop4h 30mMultiple Airlines
Deal found 12/23$250
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:47 pmSAN - DEN
Nonstop2h 28mUnited Airlines
Mon 1/68:50 pmDEN - SAN
Nonstop2h 30mUnited Airlines
Deal found 12/23$592
This Alaska Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:25 amSAN - DEN
1 stop8h 29mAlaska Airlines
Tue 1/147:00 amDEN - SAN
2 stops11h 17mAlaska Airlines
Deal found 12/23$594
This Delta deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2811:30 amSAN - DEN
1 stop6h 44mDelta
Wed 1/18:00 amDEN - SAN
1 stop5h 23mDelta
Deal found 12/23$767
This Southwest deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/235:35 pmSAN - DEN
Nonstop2h 20mSouthwest
Thu 12/266:25 pmDEN - SAN
Nonstop2h 25mSouthwest
Deal found 12/23$817

Find flights from San Diego to Denver within your budget

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 2,558,603 searches. Data last updated December 24, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 1/11

12:01 pm-3:28 pm

Nonstop2h 27m

Denver Intl

Sat 1/18

10:15 pm-11:52 pm

Nonstop2h 37m

$76

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 1/25

7:10 am-10:30 am

Nonstop2h 20m

Denver Intl

Sun 1/26

8:00 am-9:40 am

Nonstop2h 40m

$177

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 2/19

8:59 pm-1:54 pm

2 stops15h 55m

Denver Intl

Sun 2/23

10:43 pm-12:20 am

Nonstop2h 37m

$200

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 2/12

6:33 am-12:09 pm

1 stop4h 36m

Denver Intl

Sun 2/16

2:26 pm-6:30 pm

1 stop5h 04m

$207

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 1/18

10:15 am-3:20 pm

1 stop4h 05m

Denver Intl

Wed 1/22

6:05 pm-11:58 pm

1 stop6h 53m

$216

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 2/25

6:15 am-9:20 pm

2 stops14h 05m

Denver Intl

Fri 2/28

7:55 pm-9:47 am

1 stop14h 52m

$224

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 2/27

6:25 am-9:56 am

Nonstop2h 31m

$44

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 2/22

6:15 am-8:06 pm

2 stops12h 51m

$82

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 2/19

10:20 am-3:27 pm

1 stop4h 07m

$99

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 3/4

10:24 am-11:29 pm

2 stops12h 05m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 13 results
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Compare providers for flights from San Diego to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Denver in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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.

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 round-trip flight from San Diego to Denver. Price data was last updated on December 20, 2024.

The best time to book flights from San Diego to Denver is 53 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, October is the cheapest month in which you can book a flight from San Diego to Denver (average of $197). Flying from San Diego to Denver in March is currently the most expensive (average of $278). 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 December 24, 2024.

It’s typically best to fly out from San Diego to Denver in the evening. Doing so could potentially save you 23% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Denver. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Diego to Denver flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 24, 2024.

The most flights from SAN to DEN are scheduled on a Monday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 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 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 December 24, 2024.
Peruse reviews from past customers who have flown with Frontier, Delta and Alaska Airlines from San Diego to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,765 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.1
Very good
4,765 reviews
8.1
Very good
4,765 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.0
Very good
9,555 reviews
8.1
Very good
4,765 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.0
Very good
8,580 reviews
8.1
Very good
4,765 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.4
Good
9,009 reviews
8.1
Very good
4,765 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.2
Good
10,000 reviews
8.1
Very good
4,765 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

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?

    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 5 different airlines have flights from San Diego (SAN) to Denver Intl (DEN) on a regular basis. There are 21 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.

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

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

    Frontier, at $77, was found to be the cheapest airline from San Diego to Denver.Alternate airlines to your destination round-trip include Southwest and American Airlines. Frontier is priced at 57% lower than the current average price of a flight leaving 3 months from now.

  • 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 $44 on Frontier. Other airlines that offer cheap prices include American Airlines from $99 and Alaska Airlines from $106 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 (92%), United Airlines (89%), Air Canada (87%).

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

    While on average a flight from San Diego to Denver is generally $1,031, our data shows the cheapest flight currently is $49. When looking at the most popular route, (San Diego - Denver Intl), you can expect to pay $85 for that flight.

  • 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, October is the cheapest month in which you can book a flight from San Diego to Denver (average of $197). Flying from San Diego to Denver in March is currently the most expensive (average of $278). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

Top 5 airlines flying from San Diego to Denver

Discover the top 5 airlines 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 2,558,603 searches. Data last updated December 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$149FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$272FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$161Average$301FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$174Average$325FlexibilityNo cancel feeOn-time71%
DeltaCheapest$195Average$265FlexibilityNo cancel feeOn-timeN/A
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