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$79+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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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 julio 30, 2025.

Round-trip from

$117
(Cheapflightsfares)

One-way from

$79
(Hawaiian Airlines)

Popular in

March

Cheapest in

January

Average price

$207

Good round-trip deal

$173 or less

Good one-way deal

$117 or less
From San Diego to Colorado
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One-way flight from San Diego to Colorado
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Highest demand for flights based on searches. 3% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from San Diego to Colorado.
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Price to beat on a one-way flight from San Diego to Colorado.
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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 julio 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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.
vie. 8/1511:21 amSAN - DEN
Nonstop2h 41mFrontier
lun. 8/1810:29 pmDEN - SAN
Nonstop2h 23mFrontier
Deal found 7/29$117
This Southwest deal was found by Cheapflights users on 7/28. 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.
mié. 8/276:30 amSAN - DEN
1 stop4h 35mSouthwest
sáb. 8/304:30 pmDEN - SAN
Nonstop2h 20mSouthwest
Deal found 7/28$143
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
vie. 10/178:19 pmSAN - DEN
Nonstop2h 28mAlaska Airlines
mar. 10/217:50 pmDEN - SAN
Nonstop2h 29mAlaska Airlines
Deal found 7/27$147
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:35 amSAN - DEN
Nonstop2h 33mMultiple Airlines
jue. 9/186:17 pmDEN - SAN
1 stop6h 49mMultiple Airlines
Deal found 7/28$151
This American Airlines deal was found by Cheapflights users on 7/30. 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.
mar. 9/236:20 amSAN - DEN
1 stop7h 07mAmerican Airlines
mié. 9/2412:14 pmDEN - SAN
1 stop4h 07mAmerican Airlines
Deal found 7/30$159
This United Airlines deal was found by Cheapflights users on 7/30. 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.
jue. 10/305:55 pmSAN - DEN
1 stop5h 35mUnited Airlines
lun. 11/37:45 amDEN - SAN
Nonstop2h 29mUnited Airlines
Deal found 7/30$163
This American Airlines deal was found by Cheapflights users on 7/29. 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.
mié. 9/36:15 amSAN - COS
1 stop6h 28mAmerican Airlines
vie. 9/55:16 pmCOS - SAN
1 stop6h 20mAmerican Airlines
Deal found 7/29$197
This Delta deal was found by Cheapflights users on 7/29. 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.
mar. 9/25:00 pmSAN - COS
1 stop4h 18mDelta
mié. 9/35:55 pmCOS - SAN
1 stop5h 44mDelta
Deal found 7/29$207
This American Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 10/311:30 amSAN - DRO
1 stop7h 29mAmerican Airlines
sáb. 10/118:10 amDRO - SAN
1 stop8h 36mAmerican Airlines
Deal found 7/29$218
This American Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 9/511:30 amSAN - GJT
1 stop8h 39mAmerican Airlines
mié. 9/106:02 amGJT - SAN
1 stop6h 55mAmerican Airlines
Deal found 7/29$220
This Southwest deal was found by Cheapflights users on 7/29. 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.
jue. 8/283:45 pmSAN - COS
1 stop6h 40mSouthwest
jue. 9/44:55 pmCOS - SAN
1 stop6h 40mSouthwest
Deal found 7/29$228
This Delta deal was found by Cheapflights users on 7/29. 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.
jue. 8/2110:00 amSAN - ASE
1 stop6h 51mDelta
mié. 8/2712:05 pmASE - SAN
1 stop7h 12mDelta
Deal found 7/29$229

Cheapflights Fare Finder

 
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 julio 30, 2025.
Use the filters below to find and compare flights from San Diego to Colorado that are best for you.

Fly from

San Diego

Fly to

Colorado

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

vie. 8/15

11:21 am-3:02 pm

Nonstop2h 41m

Denver Intl

lun. 8/18

10:29 pm-11:52 pm

Nonstop2h 23m

$117

San DiegoDenver

SAN - DEN

SANDEN

San Diego

mié. 8/27

6:30 am-12:05 pm

1 stop4h 35m

Denver Intl

sáb. 8/30

4:30 pm-5:50 pm

Nonstop2h 20m

$143

San DiegoDenver

SAN - DEN

SANDEN

San Diego

vie. 10/17

8:19 pm-11:47 pm

Nonstop2h 28m

Denver Intl

sáb. 10/18

7:01 am-8:25 am

Nonstop2h 24m

$147

San DiegoDenver

SAN - DEN

SANDEN

San Diego

jue. 9/11

6:35 am-10:08 am

Nonstop2h 33m

Denver Intl

jue. 9/18

6:17 pm-12:06 am

1 stop6h 49m

$151

San DiegoDenver

SAN - DEN

SANDEN

San Diego

mar. 9/23

6:20 am-2:27 pm

1 stop7h 07m

Denver Intl

mié. 9/24

12:14 pm-3:21 pm

1 stop4h 07m

$159

San DiegoDenver

SAN - DEN

SANDEN

San Diego

jue. 8/21

5:56 pm-12:28 am

1 stop5h 32m

Denver Intl

lun. 8/25

8:50 pm-10:14 pm

Nonstop2h 24m

$163

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

mié. 9/3

6:15 am-1:43 pm

1 stop6h 28m

Colorado Springs

vie. 9/5

5:16 pm-10:36 pm

1 stop6h 20m

$197

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

mar. 9/2

5:00 pm-10:18 pm

1 stop4h 18m

Colorado Springs

mié. 9/3

5:55 pm-10:39 pm

1 stop5h 44m

$207

San DiegoDurango

SAN - DRO

SANDRO

San Diego

vie. 10/3

11:30 am-7:59 pm

1 stop7h 29m

Durango La Plata County

sáb. 10/11

8:10 am-3:46 pm

1 stop8h 36m

$218

San DiegoGrand Junction

SAN - GJT

SANGJT

San Diego

vie. 9/5

11:30 am-9:09 pm

1 stop8h 39m

Grand Junction Regnl

mié. 9/10

6:02 am-11:57 am

1 stop6h 55m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 54 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.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Colorado

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 julio 30, 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 julio 30, 2025.

The most flights from SAN to USCO are scheduled on a Monday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from San Diego to Colorado?

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 julio 30, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from San Diego to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    Flights from San Diego to Colorado have been viewed 172 times in the past calendar month.

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

    The cheapest airline one-way is Hawaiian Airlines, with whom users have recently found tickets for as low as $79. However, be on the lookout for offers from American Airlines and United Airlines, 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?

    Most travelers choose San Diego - Denver Intl, San Diego - Colorado Springs or San Diego - Aspen Pitkin County when deciding on the best route 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 United Airlines (76%), SWISS (76%) and Air Canada (72%).

  • 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 $1,417, our data indicates the cheapest price to be $78. The most popular route (San Diego - Denver Intl), is priced around $108.

  • 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

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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.
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Top 7 airlines flying from San Diego to Colorado

Discover the top 7 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$119FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$98Average$232FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$157Average$348FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$160Average$364FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$167Average$454FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$197Average$370FlexibilityNo cancel feeOn-time71%
DeltaCheapest$206Average$357FlexibilityNo cancel feeOn-timeN/A

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