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$46+ Cheap flights from Colorado to San Diego (SAN)

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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAN
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Colorado to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Colorado (USCO) to San Diego (SAN). 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 November 21, 2024.

Find flight deals from Colorado to San Diego

Cheapest flights from Colorado to San Diego
Explore the most affordable flight options available from Colorado to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Frontier deal was found by Cheapflights users on 11/21. 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.
Tue 12/1011:01 amDEN - SAN
Nonstop2h 37mFrontier
Wed 12/186:25 amSAN - DEN
Nonstop2h 31mFrontier
Deal found 11/21$78
This Delta deal was found by Cheapflights users on 11/20. 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.
Tue 12/106:20 amDEN - SAN
1 stop4h 55mDelta
Tue 12/1710:15 amSAN - DEN
1 stop7h 35mDelta
Deal found 11/20$216
This Orbitz deal was found by Cheapflights users on 11/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/810:51 amDEN - SAN
1 stop8h 10mMultiple Airlines
Wed 12/1112:29 pmSAN - DEN
1 stop5h 26mMultiple Airlines
Deal found 11/19$232
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/98:50 pmDEN - SAN
Nonstop2h 25mSouthwest
Tue 12/104:35 pmSAN - DEN
Nonstop2h 20mSouthwest
Deal found 11/20$268
This American Airlines deal was found by Cheapflights users on 11/21. 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.
Fri 12/206:59 pmDRO - SAN
1 stop3h 43mAmerican Airlines
Wed 1/112:39 pmSAN - DRO
1 stop4h 15mAmerican Airlines
Deal found 11/21$278
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/218:50 pmDEN - SAN
Nonstop2h 30mUnited Airlines
Wed 12/258:35 amSAN - DEN
Nonstop2h 28mUnited Airlines
Deal found 11/19$282
This Delta deal was found by Cheapflights users on 11/20. 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 12/145:56 amGJT - SAN
1 stop4h 14mDelta
Tue 1/145:14 pmSAN - GJT
1 stop4h 16mDelta
Deal found 11/20$288
This American Airlines deal was found by Cheapflights users on 11/20. 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 12/141:51 pmGJT - SAN
1 stop8h 07mAmerican Airlines
Tue 1/148:30 amSAN - GJT
2 stops11h 27mAmerican Airlines
Deal found 11/20$293
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Tue 12/177:15 amCOS - SAN
1 stop5h 03mUnited Airlines
Thu 12/194:10 pmSAN - COS
1 stop4h 53mUnited Airlines
Deal found 11/21$329
This Mytrip deal was found by Cheapflights users on 11/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/512:42 pmGJT - SAN
2 stops20h 31mMultiple Airlines
Wed 12/111:05 pmSAN - GJT
2 stops21h 57mMultiple Airlines
Deal found 11/21$331
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Sun 12/83:20 pmMTJ - SAN
1 stop6h 33mUnited Airlines
Fri 12/137:00 amSAN - MTJ
1 stop4h 21mUnited Airlines
Deal found 11/21$346
This United Airlines deal was found by Cheapflights users on 11/21. 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 12/215:50 pmDRO - SAN
1 stop5h 30mUnited Airlines
Sat 12/284:10 pmSAN - DRO
1 stop5h 17mUnited Airlines
Deal found 11/21$348

Find flights from Colorado to San Diego within your budget

Customize your flight search to find flights from Colorado to San Diego 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Tue 12/10

11:01 am-12:38 pm

Nonstop2h 37m

San Diego

Wed 12/18

6:25 am-9:56 am

Nonstop2h 31m

$78

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 3/1

7:00 am-1:58 pm

1 stop7h 58m

San Diego

Tue 3/4

4:06 pm-7:33 pm

Nonstop2h 27m

$142

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Thu 1/23

2:07 pm-7:25 pm

1 stop6h 18m

San Diego

Thu 1/30

6:20 am-1:07 pm

1 stop5h 47m

$216

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 12/14

7:45 pm-11:32 pm

1 stop4h 47m

San Diego

Mon 12/16

6:15 am-12:19 pm

1 stop5h 04m

$226

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 1/25

7:45 pm-11:58 pm

1 stop5h 13m

San Diego

Tue 1/28

7:00 am-10:28 am

Nonstop2h 28m

$227

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 2/1

2:27 pm-6:32 pm

1 stop5h 05m

San Diego

Fri 2/28

6:22 am-11:42 am

1 stop4h 20m

$247

DurangoSan Diego

DRO - SAN

DROSAN

Durango La Plata County

Fri 12/20

6:59 pm-9:42 pm

1 stop3h 43m

San Diego

Wed 1/1

12:39 pm-5:54 pm

1 stop4h 15m

$278

Grand JunctionSan Diego

GJT - SAN

GJTSAN

Grand Junction Regnl

Sat 12/14

5:56 am-9:10 am

1 stop4h 14m

San Diego

Tue 1/14

5:14 pm-10:30 pm

1 stop4h 16m

$288

Grand JunctionSan Diego

GJT - SAN

GJTSAN

Grand Junction Regnl

Sat 12/14

1:51 pm-8:58 pm

1 stop8h 07m

San Diego

Tue 1/14

8:30 am-8:57 pm

2 stops11h 27m

$293

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 1/16

6:00 am-9:30 am

1 stop4h 30m

San Diego

Wed 1/22

7:00 am-2:19 pm

1 stop6h 19m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 40 results
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Best time to book a flight from Colorado to San Diego

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

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

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

Currently, September is the cheapest month in which you can book a flight from Colorado to San Diego (average of $266). Flying from Colorado to San Diego in March is currently the most expensive (average of $339). 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 CO to SAN?

Find hourly flight availability from Colorado to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to San Diego as you normally would.

Weekly flight availability from Colorado to San Diego

Explore weekly flight availability from Colorado to San Diego. 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 November 21, 2024.

The most flights from USCO to SAN are scheduled on a Thursday (30 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (13 on average).

Rainfall in San Diego by month

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

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

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

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated November 21, 2024.
See what other customers who have flown with Frontier, Delta and Alaska Airlines from Colorado to San Diego have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,464 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Colorado to San Diego. 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 into for flights to San Diego from Colorado?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly into when you book flights from Colorado to San Diego.

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

    This flight path from Colorado to San Diego was viewed by 154 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 to fly from Colorado to San Diego one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $46. United Airlines flights start at $88 while deals on Delta start at $97 one-way.

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

    While some choose either Colorado Springs - San Diego or Grand Junction Regnl - San Diego, Denver Intl - San Diego is the most popular route from Colorado to San Diego.

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

    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 Colorado to San Diego on time: SWISS (100%), Lufthansa (84%), United Airlines (84%).

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

    Looking for the cheapest flight from Colorado to San Diego? While on average our users pay $293, our data indicates the cheapest price to be $40. The most popular route (Denver Intl - San Diego), is priced around $122.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Colorado to San Diego (average of $266). Flying from Colorado to San Diego in March is currently the most expensive (average of $339). 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.

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Alternative routes for Colorado to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Colorado to San Diego

Discover the top 7 airlines that operate flights from Colorado to San Diego. 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$145FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$80Average$166FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$150Average$451FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$158Average$318FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$176Average$368FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$257FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$238Average$378FlexibilityNo cancel feeOn-time75%
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