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$111+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
COS — SAN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Find cheap flights from Colorado Springs to San Diego with Cheapflights

1. Tell us where you want to go

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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 Tuesday or Wednesday 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:48 pmCOS - SAN
1 stop4h 46mUnited Airlines
Sat 12/204:10 pmSAN - COS
1 stop4h 56mUnited Airlines
Deal found 12/16$384
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:10 pmCOS - SAN
1 stop6h 22mUnited Airlines
Fri 12/2612:42 pmSAN - COS
1 stop6h 34mUnited Airlines
Deal found 12/17$417
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:23 pmCOS - SAN
1 stop5h 09mUnited Airlines
Sun 12/286:30 amSAN - COS
1 stop5h 41mUnited Airlines
Deal found 12/17$427
This Southwest deal was found by Cheapflights users on 12/16. 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.
Thu 12/1810:05 amCOS - SAN
Nonstop2h 25mSouthwest
Sat 12/205:45 pmSAN - COS
1 stop4h 50mSouthwest
Deal found 12/16$462
This Southwest deal was found by Cheapflights users on 12/17. 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 12/256:35 amCOS - SAN
1 stop6h 10mSouthwest
Sun 12/284:55 pmSAN - COS
Nonstop2h 20mSouthwest
Deal found 12/17$498
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:45 amCOS - SAN
1 stop4h 54mUnited Airlines
Wed 12/3111:00 amSAN - COS
1 stop6h 55mUnited Airlines
Deal found 12/16$510

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$207
(Kiwi.com)

One-way from

$111
(Delta)

Popular in

June

Cheapest in

September

Average price

$398

Good round-trip deal

$337 or less

Good one-way deal

$248 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
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One-way flight from Colorado Springs to San Diego
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Colorado Springs to San Diego.
Search Deals
Price to beat on a one-way flight from Colorado Springs to San Diego.
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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 December 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

Wed 1/14

7:59 am-12:22 pm

1 stop5h 23m

San Diego

Wed 1/21

11:00 am-10:23 pm

2 stops10h 23m

$226

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Wed 1/14

1:25 pm-5:28 pm

1 stop5h 03m

San Diego

Mon 1/19

6:30 am-2:34 pm

1 stop7h 04m

$251

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Thu 1/15

7:50 am-1:35 pm

2 stops6h 45m

San Diego

Thu 1/22

11:10 am-5:05 pm

1 stop4h 55m

$266

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sat 2/21

5:05 pm-11:40 pm

2 stops7h 35m

San Diego

Thu 2/26

8:50 am-2:30 pm

1 stop4h 40m

$266

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 1/27

12:00 pm-4:36 pm

1 stop5h 36m

San Diego

Fri 1/30

11:00 am-10:23 pm

2 stops10h 23m

$279

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Wed 3/4

5:15 pm-10:26 pm

1 stop6h 11m

San Diego

Fri 3/6

4:38 pm-11:53 pm

1 stop6h 15m

$281

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 2/20

11:00 am-12:30 pm

Nonstop2h 30m

San Diego

Tue 2/24

8:35 am-3:55 pm

1 stop6h 20m

$281

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 2/20

6:55 pm-10:35 pm

1 stop4h 40m

San Diego

Tue 2/24

9:00 am-2:30 pm

1 stop4h 30m

$281

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 3/24

7:59 am-6:22 pm

2 stops11h 23m

San Diego

Mon 3/30

7:30 pm-11:14 am

2 stops14h 44m

$285

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Tue 1/6

1:25 pm-5:28 pm

1 stop5h 03m

San Diego

Tue 1/13

11:08 am-10:06 pm

2 stops9h 58m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 19 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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Colorado Springs-San Diego flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 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 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, January 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 December 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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 61% 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 December 18, 2025.
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
7.9
Good
4,250 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

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
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

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
9,093 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

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 $251, Delta can have you in San Diego from Colorado Springs in 5h 03m. 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 38% 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 $195. While the most popular route (Colorado Springs - San Diego) can be booked for $198 on average, our data indicates $325 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, January 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
Coronado
National City
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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$352FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$230Average$363FlexibilityNo cancel feeOn-time63%

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