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$76+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
COS — SAN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Colorado Springs to San Diego are usually found in September or July, booked 68 days in advance, depart on a Wednesday or Tuesday and return on a Friday

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 September 17, 2025.

Round-trip from

$158
(American Airlines)

One-way from

$76
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$298

Good round-trip deal

$375 or less
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. 7% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Colorado Springs to San Diego.
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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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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 10/304:54 pmCOS - SAN
1 stop6h 50mAmerican Airlines
Thu 11/64:44 pmSAN - COS
1 stop6h 04mAmerican Airlines
Deal found 9/15$158
This Southwest deal was found by Cheapflights users on 9/16. 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 10/147:10 pmCOS - SAN
1 stop3h 50mSouthwest
Tue 10/212:45 pmSAN - COS
1 stop5h 50mSouthwest
Deal found 9/16$177
This Southwest deal was found by Cheapflights users on 9/15. 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 10/136:15 pmCOS - SAN
1 stop5h 50mSouthwest
Wed 10/153:35 pmSAN - COS
1 stop6h 25mSouthwest
Deal found 9/15$187
This Southwest deal was found by Cheapflights users on 9/16. 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.
Fri 10/173:55 pmCOS - SAN
Nonstop2h 15mSouthwest
Tue 10/218:30 amSAN - COS
1 stop6h 20mSouthwest
Deal found 9/16$189
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/316:00 amCOS - SAN
1 stop4h 14mUnited Airlines
Sat 11/19:00 amSAN - COS
1 stop6h 28mUnited Airlines
Deal found 9/15$205
This Southwest deal was found by Cheapflights users on 9/15. 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 10/2111:35 amCOS - SAN
2 stops7h 00mSouthwest
Sat 11/16:45 amSAN - COS
2 stops11h 50mSouthwest
Deal found 9/15$207
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/316:00 amCOS - SAN
1 stop4h 14mUnited Airlines
Sun 11/25:45 amSAN - COS
1 stop5h 29mUnited Airlines
Deal found 9/15$212
This Delta deal was found by Cheapflights users on 9/15. 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 11/136:02 pmCOS - SAN
1 stop6h 53mDelta
Tue 11/184:58 pmSAN - COS
1 stop4h 25mDelta
Deal found 9/15$217

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 September 17, 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

Tue 10/14

7:10 pm-10:00 pm

1 stop3h 50m

San Diego

Tue 10/21

2:45 pm-9:35 pm

1 stop5h 50m

$177

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 10/17

3:55 pm-5:10 pm

Nonstop2h 15m

San Diego

Tue 10/21

8:30 am-3:50 pm

1 stop6h 20m

$189

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 10/31

6:00 am-9:14 am

1 stop4h 14m

San Diego

Sat 11/1

9:00 am-4:28 pm

1 stop6h 28m

$205

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 10/21

11:35 am-5:35 pm

2 stops7h 00m

San Diego

Sat 11/1

6:45 am-7:35 pm

2 stops11h 50m

$207

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 11/7

7:55 pm-11:20 pm

1 stop4h 25m

San Diego

Mon 11/10

5:35 pm-11:40 pm

1 stop5h 05m

$207

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 11/13

6:02 pm-11:55 pm

1 stop6h 53m

San Diego

Tue 11/18

4:58 pm-10:23 pm

1 stop4h 25m

$217

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 10/24

6:20 pm-10:15 pm

1 stop4h 55m

San Diego

Mon 10/27

4:10 pm-9:59 pm

1 stop4h 49m

$221

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 10/17

6:20 pm-10:15 pm

1 stop4h 55m

San Diego

Tue 10/21

6:53 am-2:36 pm

1 stop6h 43m

$221

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sun 12/14

10:24 am-3:04 pm

1 stop5h 40m

$76

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 11/15

8:30 am-3:00 pm

1 stop7h 30m

$76

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 18 results
1
2

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 September 12, 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 September 17, 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 4% 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 September 17, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American 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

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • How long is the flight from Colorado Springs to San Diego?

    For as low as $177, Southwest can have you in San Diego from Colorado Springs in 3h 50m. Colorado Springs and San Diego are separated by a distance of 815 mi. This flight may include one or multiple stops.

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

    Flying on United Airlines is currently your cheapest option to San Diego, with prices starting at $218. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $235 and $237, respectively. United Airlines is currently priced 40% below the average price you’ll pay for this route.

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

    Looking at all options, your cheapest flight can be booked for $305. While the most popular route (Colorado Springs - San Diego) can be booked for $151 on average, our data indicates $404 when flying from Colorado Springs to San Diego.

  • 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$398FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$235Average$372FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$237Average$366FlexibilityNo cancel feeOn-time71%

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