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$79+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
COS — SAN
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
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 42 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap 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 January 24, 2026.

This Southwest deal was found by Cheapflights users on 1/22. 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 2/1211:00 am
COS
-
SAN
Nonstop2h 30m
Southwest
Mon 2/164:05 pm
SAN
-
COS
Nonstop2h 15m
Southwest
Deal found 1/22$157
This Southwest deal was found by Cheapflights users on 1/23. 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 2/234:50 pm
COS
-
SAN
1 stop5h 10m
Southwest
Thu 2/264:50 pm
SAN
-
COS
1 stop6h 20m
Southwest
Deal found 1/23$177
This Delta deal was found by Cheapflights users on 1/23. 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.
Wed 4/157:59 am
COS
-
SAN
1 stop5h 09m
Delta
Sat 4/185:55 pm
SAN
-
COS
1 stop4h 11m
Delta
Deal found 1/23$197
This United Airlines deal was found by Cheapflights users on 1/23. 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.
Mon 2/235:05 pm
COS
-
SAN
2 stops7h 35m
United Airlines
Thu 2/266:30 am
SAN
-
COS
1 stop5h 01m
United Airlines
Deal found 1/23$239
This United Airlines deal was found by Cheapflights users on 1/22. 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 3/126:55 pm
COS
-
SAN
1 stop4h 48m
United Airlines
Mon 3/166:30 am
SAN
-
COS
1 stop4h 58m
United Airlines
Deal found 1/22$252
This Southwest deal was found by Cheapflights users on 1/22. 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 2/73:20 pm
COS
-
SAN
1 stop6h 00m
Southwest
Thu 2/264:05 pm
SAN
-
COS
Nonstop2h 15m
Southwest
Deal found 1/22$254
This Southwest deal was found by Cheapflights users on 1/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 pm
COS
-
SAN
1 stop5h 10m
Southwest
Wed 2/254:20 pm
SAN
-
COS
1 stop4h 15m
Southwest
Deal found 1/21$258
This American Airlines deal was found by Cheapflights users on 1/22. 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 2/712:08 pm
COS
-
SAN
1 stop11h 18m
American Airlines
Thu 2/264:39 pm
SAN
-
COS
1 stop6h 20m
American Airlines
Deal found 1/22$264

Find 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 January 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$157
(Southwest)

One-way from

$79
(Southwest)

Popular in

December

Cheapest in

September

Average price

$340

Good round-trip deal

$361 or less
Provider with most accurate pricing for Colorado Springs-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Colorado Springs-San Diego flights.
Search Deals
From Colorado Springs to San Diego
Search Deals
One-way flight from Colorado Springs to San Diego
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Colorado Springs to San Diego.
Search Deals

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 January 24, 2026.
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

Mon 2/23

4:50 pm-9:00 pm

1 stop5h 10m

San Diego

Thu 2/26

4:50 pm-12:10 am

1 stop6h 20m

$177

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Wed 4/15

7:59 am-12:08 pm

1 stop5h 09m

San Diego

Sat 4/18

5:55 pm-11:06 pm

1 stop4h 11m

$197

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Mon 2/23

5:05 pm-11:40 pm

2 stops7h 35m

San Diego

Thu 2/26

6:30 am-12:31 pm

1 stop5h 01m

$239

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 3/12

6:55 pm-10:43 pm

1 stop4h 48m

San Diego

Mon 3/16

6:30 am-12:28 pm

1 stop4h 58m

$252

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 2/7

3:20 pm-8:20 pm

1 stop6h 00m

San Diego

Thu 2/26

4:05 pm-7:20 pm

Nonstop2h 15m

$254

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 3/3

5:07 pm-10:30 pm

1 stop6h 23m

San Diego

Sun 3/8

3:38 pm-11:59 pm

1 stop7h 21m

$258

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 2/20

7:00 pm-11:10 pm

1 stop5h 10m

San Diego

Wed 2/25

4:20 pm-9:35 pm

1 stop4h 15m

$258

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Wed 2/18

6:00 am-10:55 am

1 stop5h 55m

San Diego

Sun 2/22

7:05 pm-12:10 am

1 stop4h 05m

$264

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 2/21

4:40 pm-10:55 pm

2 stops7h 15m

$94

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 2/24

12:00 pm-3:55 pm

1 stop4h 55m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 18 results
1
2

Compare providers for flights from Colorado Springs to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Colorado Springs to San Diego in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Colorado Springs-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Colorado Springs-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Colorado Springs-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Colorado Springs-San Diego flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Colorado Springs-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 January 23, 2026.

To ensure you get the cheapest price possible for a flight from Colorado Springs to San Diego, you should look to book at least 42 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, February is the cheapest month in which you can book a flight from Colorado Springs to San Diego (average of $38). Flying from Colorado Springs to San Diego in September is currently the most expensive (average of $75). 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 January 24, 2026.

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

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

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 January 24, 2026.
Get a feel of what it's like to fly with Southwest 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
4,268 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

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
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

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
9,193 reviews
Southwest
8.0
Very good
4,268 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

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 $197, Southwest can have you in San Diego from Colorado Springs in 5h 09m. 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. Another option worth looking into is Southwest, starting at $232 round trip. United Airlines is currently priced 37% 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 $297. While the most popular route (Colorado Springs - San Diego) can be booked for $177 on average, our data indicates $535 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, February is the cheapest month in which you can book a flight from Colorado Springs to San Diego (average of $38). Flying from Colorado Springs to San Diego in September is currently the most expensive (average of $75). 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Top 2 airlines flying from Colorado Springs to San Diego

Discover the top 2 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 January 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$348FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$232Average$359FlexibilityNo cancel feeOn-time63%

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