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$89+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
COS — SAN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 Wednesday or Tuesday and return on a Tuesday

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 August 18, 2025.

Round-trip from

$177
(Southwest)

One-way from

$89
(Southwest)

Popular in

November

Cheapest in

August

Average price

$288

Good round-trip deal

$301 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 ($27 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 August 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 August 18, 2025.

This Southwest deal was found by Cheapflights users on 8/17. 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.
Thu 10/233:55 pmCOS - SAN
Nonstop2h 15mSouthwest
Mon 10/2712:00 pmSAN - COS
Nonstop2h 20mSouthwest
Deal found 8/17$177
This American Airlines deal was found by Cheapflights users on 8/17. 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 11/134:37 pmCOS - SAN
1 stop8h 19mAmerican Airlines
Tue 11/186:15 amSAN - COS
1 stop8h 32mAmerican Airlines
Deal found 8/17$197
This Southwest deal was found by Cheapflights users on 8/18. 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 9/1311:05 amCOS - SAN
2 stops6h 50mSouthwest
Mon 9/155:00 pmSAN - COS
1 stop5h 25mSouthwest
Deal found 8/18$202
This Southwest deal was found by Cheapflights users on 8/17. 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 9/234:15 pmCOS - SAN
2 stops6h 35mSouthwest
Tue 9/302:20 pmSAN - COS
2 stops6h 40mSouthwest
Deal found 8/17$207
This Delta deal was found by Cheapflights users on 8/18. 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 11/135:55 pmCOS - SAN
1 stop6h 50mDelta
Tue 11/1811:05 amSAN - COS
2 stops10h 24mDelta
Deal found 8/18$222
This Delta deal was found by Cheapflights users on 8/18. 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 10/188:09 amCOS - SAN
2 stops11h 59mDelta
Wed 10/226:20 amSAN - COS
2 stops9h 49mDelta
Deal found 8/18$227
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/275:16 pmCOS - SAN
1 stop6h 20mAmerican Airlines
Mon 9/296:15 amSAN - COS
1 stop9h 03mAmerican Airlines
Deal found 8/17$230
This Southwest deal was found by Cheapflights users on 8/16. 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.
Sat 9/1311:05 amCOS - SAN
2 stops6h 50mSouthwest
Wed 9/173:35 pmSAN - COS
1 stop5h 30mSouthwest
Deal found 8/16$238
This Southwest deal was found by Cheapflights users on 8/17. 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
Mon 10/2012:00 pmSAN - COS
Nonstop2h 20mSouthwest
Deal found 8/17$239
This Delta deal was found by Cheapflights users on 8/18. 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 10/185:49 pmCOS - SAN
1 stop4h 55mDelta
Tue 10/219:45 amSAN - COS
1 stop6h 24mDelta
Deal found 8/18$243

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 August 18, 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

Thu 10/23

3:55 pm-5:10 pm

Nonstop2h 15m

San Diego

Mon 10/27

12:00 pm-3:20 pm

Nonstop2h 20m

$177

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 9/11

5:03 pm-11:58 pm

1 stop7h 55m

San Diego

Mon 9/15

7:13 am-4:18 pm

1 stop8h 05m

$197

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 9/23

6:00 am-9:09 am

1 stop4h 09m

San Diego

Tue 9/30

4:05 pm-9:54 pm

1 stop4h 49m

$197

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 10/23

4:54 pm-11:40 pm

1 stop7h 46m

San Diego

Mon 10/27

4:38 pm-11:44 pm

1 stop6h 06m

$197

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 11/13

4:37 pm-11:56 pm

1 stop8h 19m

San Diego

Tue 11/18

7:21 am-3:47 pm

1 stop7h 26m

$197

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 9/13

5:16 pm-10:36 pm

1 stop6h 20m

San Diego

Mon 9/15

3:01 pm-10:08 pm

1 stop6h 07m

$197

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 11/15

10:55 am-12:20 pm

Nonstop2h 25m

$89

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 9/9

5:16 pm-10:36 pm

1 stop6h 20m

$99

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 9/9

5:10 pm-8:25 pm

1 stop4h 15m

$99

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Wed 9/17

5:50 pm-8:55 pm

1 stop4h 05m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 17 results
1
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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 August 8, 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 August 18, 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 14% on airfare.

What’s the top layover airport for flights from Colorado Springs to San Diego?

Share of 1-stop round-trip flights from Colorado Springs to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 75% of 1-stop itineraries from Colorado Springs to San Diego on Cheapflights.

What’s the cheapest layover airport for flights from Colorado Springs to San Diego?

Average round-trip fare for 1-stop flights from Colorado Springs to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $353.

What’s the fastest layover option from Colorado Springs to San Diego?

Shortest average travel time for 1-stop one-way flights from Colorado Springs to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 3h 50m.

Which airport typically offers the quickest layover for flights from Colorado Springs to San Diego?

Average layover duration for 1-stop one-way flights from Colorado Springs to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 0h 45m.

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 August 18, 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
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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
8,925 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

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 2h 15m. 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 Delta is currently your cheapest option to San Diego, with prices starting at $206. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $212 and $218, respectively. Delta is currently priced 44% 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 $177. While the most popular route (Colorado Springs - San Diego) can be booked for $177 on average our data indicates $335 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
Coronado
La Mesa
Poway
National City
Lemon Grove
Imperial Beach
Alpine

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Top 4 airlines flying from Colorado Springs to San Diego

Discover the top 4 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$206Average$256FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$207Average$346FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$218Average$387FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$239Average$366FlexibilityNo cancel feeOn-time63%

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