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$99+ Cheap flights from Colorado Springs to San Diego (COS - 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
COS — SAN
Jul 19 — Jul 261
Sat 7/19
Sat 7/26
1 adult, Economy
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Cheapflights Tip: The best prices from Colorado Springs to San Diego are usually found in August or July, booked 68 days in advance, depart on a Thursday or Tuesday and return on a Monday

Cheap flight deals from Colorado Springs to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Colorado Springs (COS) 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 July 14, 2025.

Round-trip from

$197
(Southwest)

One-way from

$99
(American Airlines)

Popular in

November

Cheapest in

August

Average price

$326
From Colorado Springs to San Diego
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One-way flight from Colorado Springs to San Diego
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Highest demand for flights based on searches. 8% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Colorado Springs to San Diego

Cheapest flights from Colorado Springs to San Diego
Explore the most affordable flight options available from Colorado Springs to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2025.

This Southwest deal was found by Cheapflights users on 7/13. 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 9/1310:40 amCOS - SAN
1 stop4h 15mSouthwest
Wed 9/173:35 pmSAN - COS
1 stop5h 30mSouthwest
Deal found 7/13$197
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Thu 8/1412:55 pmCOS - SAN
1 stop5h 37mUnited Airlines
Mon 8/186:47 pmSAN - COS
1 stop4h 05mUnited Airlines
Deal found 7/11$215
This Delta deal was found by Cheapflights users on 7/13. 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 8/145:55 pmCOS - SAN
1 stop6h 47mDelta
Mon 8/185:00 pmSAN - COS
1 stop4h 18mDelta
Deal found 7/13$223
This Mytrip deal was found by Cheapflights users on 7/11. 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.
Fri 7/255:09 pmCOS - SAN
2 stops17h 46mMultiple Airlines
Mon 7/286:15 amSAN - COS
2 stops9h 04mMultiple Airlines
Deal found 7/11$227
This American Airlines deal was found by Cheapflights users on 7/13. 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.
Thu 8/145:09 pmCOS - SAN
1 stop5h 27mAmerican Airlines
Mon 8/189:45 amSAN - COS
2 stops7h 35mAmerican Airlines
Deal found 7/13$263

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado Springs 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 2,558,603 searches. Data last updated July 14, 2025.
Use the filters below to find and compare flights from Colorado Springs to San Diego that are best for you.

Fly from

Colorado Springs

Fly to

San Diego

Route

Depart

Return

Price

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 9/13

10:40 am-1:55 pm

1 stop4h 15m

San Diego

Wed 9/17

3:35 pm-10:05 pm

1 stop5h 30m

$197

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 8/14

12:55 pm-5:32 pm

1 stop5h 37m

San Diego

Mon 8/18

6:47 pm-11:52 pm

1 stop4h 05m

$215

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 8/14

5:55 pm-11:42 pm

1 stop6h 47m

San Diego

Mon 8/18

5:00 pm-10:18 pm

1 stop4h 18m

$223

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 7/25

5:09 pm-9:55 am

2 stops17h 46m

San Diego

Mon 7/28

6:15 am-4:19 pm

2 stops9h 04m

$227

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 8/14

5:09 pm-9:36 pm

1 stop5h 27m

San Diego

Mon 8/18

9:45 am-6:20 pm

2 stops7h 35m

$263

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 8/12

8:25 am-2:25 pm

1 stop7h 00m

$99

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Mon 8/4

5:09 pm-9:55 am

2 stops17h 46m

$101

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 8/9

5:55 pm-10:39 pm

1 stop5h 44m

$104

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 8/9

3:35 pm-11:44 pm

2 stops9h 09m

$139

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sun 10/12

11:40 am-1:00 pm

Nonstop2h 20m

$151

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

Best time to book a flight from Colorado Springs to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Colorado Springs to San Diego. Price data was last updated on July 11, 2025.

To ensure you get the cheapest price possible for a flight from Colorado Springs to San Diego, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Colorado Springs to San Diego (average of $286). Flying from Colorado Springs to San Diego in March is currently the most expensive (average of $366). 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 COS to SAN?

Find hourly flight availability from Colorado Springs 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 July 14, 2025.

One of the essential ways to save on airfare from Colorado Springs to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 8% on airfare.

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 July 14, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Colorado Springs to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,956 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,858 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.6

Comfort

8.0

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 Colorado Springs 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 are the cheapest airlines flying from Colorado Springs to San Diego round-trip?

    Flying on Southwest is currently your cheapest option to San Diego, with prices starting at $197. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $215 and $223, respectively. Southwest is currently priced 47% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $99. Delta flights start at $104 while deals on United Airlines start at $139 one-way.

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Colorado Springs to San Diego (average of $286). Flying from Colorado Springs to San Diego in March is currently the most expensive (average of $366). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
National City
Lemon Grove
Imperial Beach
La Mesa
Poway
Alpine
Santee

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Top 3 airlines flying from Colorado Springs to San Diego

Discover the top 3 airlines that operate flights from Colorado Springs 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 2,558,603 searches. Data last updated July 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$212Average$343FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$218Average$379FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$249Average$369FlexibilityNo cancel feeOn-time63%

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