Colorado

$50+ Cheap flights from San Diego (SAN) to Colorado

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
Mar 3 — Mar 101
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Cheap flight deals from San Diego to Colorado

Keep the following information in mind while searching for San Diego to Colorado flight deals. Data was last updated February 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$113
(Cheapflightsfares)

One-way from

$50
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$170

Good round-trip deal

$164 or less

Good one-way deal

$104 or less
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 Colorado
One-way flight from San Diego to Colorado
Highest demand for flights based on searches. 9% potential increase in price ($17 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from San Diego to Colorado.
Price to beat on a one-way flight from San Diego to Colorado.

Find flight deals from San Diego to Colorado

Cheapest flights from San Diego to Colorado
Explore the most affordable flight options available from San Diego to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:25 amSAN - DEN
Nonstop2h 31mFrontier
Sun 5/1110:43 pmDEN - SAN
Nonstop2h 30mFrontier
Deal found 2/26$113
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1512:48 pmSAN - DEN
Nonstop2h 28mMultiple Airlines
Sun 3/166:15 amDEN - SAN
Nonstop2h 22mMultiple Airlines
Deal found 2/25$121
This American Airlines deal was found by Cheapflights users on 2/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/124:30 pmSAN - DEN
1 stop4h 18mAmerican Airlines
Tue 4/156:46 pmDEN - SAN
1 stop3h 51mAmerican Airlines
Deal found 2/26$169
This Southwest deal was found by Cheapflights users on 2/26. 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.
Tue 5/65:40 pmSAN - DEN
1 stop4h 05mSouthwest
Thu 5/159:45 pmDEN - SAN
Nonstop2h 25mSouthwest
Deal found 2/26$170
This United Airlines deal was found by Cheapflights users on 2/26. 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.
Sat 8/307:00 amSAN - HDN
1 stop6h 38mUnited Airlines
Sat 9/63:20 pmHDN - SAN
1 stop6h 18mUnited Airlines
Deal found 2/26$189
This American Airlines deal was found by Cheapflights users on 2/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/144:48 pmSAN - COS
1 stop5h 58mAmerican Airlines
Wed 4/164:39 pmCOS - SAN
1 stop8h 17mAmerican Airlines
Deal found 2/26$189
This United Airlines deal was found by Cheapflights users on 2/26. 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 4/76:24 pmSAN - COS
1 stop4h 35mUnited Airlines
Mon 4/146:39 pmCOS - SAN
1 stop4h 54mUnited Airlines
Deal found 2/26$209
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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.
Thu 5/88:44 pmSAN - DEN
1 stop13h 07mAlaska Airlines
Mon 5/126:37 pmDEN - SAN
1 stop6h 22mAlaska Airlines
Deal found 2/25$212
This Delta deal was found by Cheapflights users on 2/24. 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.
Thu 4/310:55 amSAN - DEN
1 stop6h 10mDelta
Mon 4/76:55 amDEN - SAN
1 stop4h 16mDelta
Deal found 2/24$217
This Southwest deal was found by Cheapflights users on 2/26. 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.
Sat 4/124:20 pmSAN - COS
1 stop4h 50mSouthwest
Mon 4/145:50 pmCOS - SAN
1 stop5h 50mSouthwest
Deal found 2/26$231
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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.
Sat 3/2210:44 amSAN - HDN
Nonstop2h 26mAlaska Airlines
Wed 3/2612:33 pmHDN - SAN
Nonstop2h 34mAlaska Airlines
Deal found 2/26$237
This Frontier deal was found by Cheapflights users on 2/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/96:25 amSAN - EGE
1 stop6h 42mFrontier
Sun 3/233:07 pmEGE - SAN
1 stop10h 13mFrontier
Deal found 2/26$244

Find flights from San Diego to Colorado within your budget

Customize your flight search to find flights from San Diego to Colorado 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 February 26, 2025.

Fly from

San Diego

Fly to

Colorado

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 5/8

6:25 am-9:56 am

Nonstop2h 31m

Denver Intl

Sun 5/11

10:43 pm-12:13 am

Nonstop2h 30m

$113

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 3/15

12:48 pm-4:16 pm

Nonstop2h 28m

Denver Intl

Sun 3/16

6:15 am-7:37 am

Nonstop2h 22m

$121

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 4/12

4:30 pm-9:48 pm

1 stop4h 18m

Denver Intl

Tue 4/15

6:46 pm-9:37 pm

1 stop3h 51m

$169

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 5/6

5:40 pm-10:45 pm

1 stop4h 05m

Denver Intl

Thu 5/15

9:45 pm-11:10 pm

Nonstop2h 25m

$170

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

Mon 4/14

4:48 pm-11:46 pm

1 stop5h 58m

Colorado Springs

Wed 4/16

4:39 pm-11:56 pm

1 stop8h 17m

$189

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

Mon 4/7

6:24 pm-11:59 pm

1 stop4h 35m

Colorado Springs

Mon 4/14

6:39 pm-10:33 pm

1 stop4h 54m

$209

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 5/8

8:44 pm-10:51 am

1 stop13h 07m

Denver Intl

Mon 5/12

6:37 pm-11:59 pm

1 stop6h 22m

$212

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 4/3

10:55 am-6:05 pm

1 stop6h 10m

Denver Intl

Mon 4/7

6:55 am-10:11 am

1 stop4h 16m

$217

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

Sat 4/12

4:20 pm-10:10 pm

1 stop4h 50m

Colorado Springs

Mon 4/14

5:50 pm-10:40 pm

1 stop5h 50m

$231

San DiegoHayden

SAN - HDN

SANHDN

San Diego

Sat 3/22

10:44 am-2:10 pm

Nonstop2h 26m

Hayden Yampa Valley

Wed 3/26

12:33 pm-2:07 pm

Nonstop2h 34m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 60 results
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Best time to book a flight from San Diego to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado 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 Colorado

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

What is the cheapest month to book a flight from San Diego to Colorado?

Currently, October is the cheapest month in which you can book a flight from San Diego to Colorado (average of $197). Flying from San Diego to Colorado 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 CO?

Find hourly flight availability from San Diego to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 26, 2025.

When flying from San Diego to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Diego to Colorado

Explore weekly flight availability from San Diego to Colorado. 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 February 26, 2025.

The most flights from SAN to USCO are scheduled on a Monday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Colorado by month

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

In terms of precipitation, rainfall in Colorado 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 Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

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

If weather is an important factor for your trip to Colorado, 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 Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated February 26, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from San Diego to Colorado 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.

Comfort

8.1

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.1

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.1

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

8.0
Very good

Comfort

8.1

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.1

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.1

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from San Diego to Colorado?

    If you book a flight to Colorado from San Diego, you will be flying from San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego.

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

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $50. However, be on the lookout for offers from United Airlines and Southwest, as they are both options that can get you from San Diego to Colorado for a low price.

  • What are the most popular routes from San Diego to Colorado?

  • What are the most reliable airlines from San Diego to Colorado?

    The top 3 most reliable airlines when flying from San Diego to Colorado are Copa Airlines (90%), Air Canada (86%) and Frontier (81%).

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

    Looking for the cheapest flight from San Diego to Colorado? While on average our users pay $908, our data indicates the cheapest price to be $55. The most popular route (San Diego - Denver Intl), is priced around $118.

  • Can I find deals for flights from San Diego to Colorado that include hotel bookings?

    Yes. In addition to deals on San Diego to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Colorado.

  • Can I find deals for business class flights from San Diego to Colorado?

    Yes. Cheapflights offers flight deals from San Diego to Colorado 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 Colorado?

    Currently, October is the cheapest month in which you can book a flight from San Diego to Colorado (average of $197). Flying from San Diego to Colorado 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 Colorado

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

Top 6 airlines flying from San Diego to Colorado

Discover the top 6 airlines that operate flights from San Diego to Colorado. 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 February 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$111FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$369FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$164Average$476FlexibilityNo cancel feeOn-time69%
DeltaCheapest$195Average$357FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$231Average$399FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$246Average$419FlexibilityNo cancel feeOn-time75%
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