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$104 Cheap Flights from Colorado Springs (COS) to San Diego (SAN)

View $104 flight on Tue, Nov 17, 2026Opens in a new window

Popular airlines from Colorado Springs Airport (COS) to San Diego Intl. Airport (SAN)

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Cheap Flights from Colorado Springs to San Diego (COS-SAN)

Prices were available within the past 7 days and start at $104 for one-way flights and $187 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Sat, Oct 3 - Mon, Oct 5
COS
Colorado Springs
SAN
San Diego
$187 Roundtrip, found 3 days ago
$187
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Sat, Oct 3 from Colorado Springs to San Diego, returning Mon, Oct 5, priced at $187 found 3 days ago
Southwest Airlines
Thu, Oct 22 - Tue, Oct 27
COS
Colorado Springs
SAN
San Diego
$191 Roundtrip, found 1 day ago
$191
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Oct 22 from Colorado Springs to San Diego, returning Tue, Oct 27, priced at $191 found 1 day ago
Southwest Airlines
Tue, Oct 6 - Mon, Oct 12
COS
Colorado Springs
SAN
San Diego
$193 Roundtrip, found 3 days ago
$193
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Oct 6 from Colorado Springs to San Diego, returning Mon, Oct 12, priced at $193 found 3 days ago
Southwest Airlines
Fri, Oct 16 - Wed, Oct 21
COS
Colorado Springs
SAN
San Diego
$196 Roundtrip, found 1 day ago
$196
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Oct 16 from Colorado Springs to San Diego, returning Wed, Oct 21, priced at $196 found 1 day ago
Southwest Airlines
Fri, Oct 23 - Fri, Oct 30
COS
Colorado Springs
SAN
San Diego
$205 Roundtrip, found 3 days ago
$205
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Fri, Oct 23 from Colorado Springs to San Diego, returning Fri, Oct 30, priced at $205 found 3 days ago
Southwest Airlines
Thu, Oct 22 - Tue, Oct 27
COS
Colorado Springs
SAN
San Diego
$206 Roundtrip, found 1 day ago
$206
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Oct 22 from Colorado Springs to San Diego, returning Tue, Oct 27, priced at $206 found 1 day ago
Southwest Airlines
Sat, Oct 3 - Mon, Oct 5
COS
Colorado Springs
SAN
San Diego
$211 Roundtrip, found 3 days ago
$211
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Sat, Oct 3 from Colorado Springs to San Diego, returning Mon, Oct 5, priced at $211 found 3 days ago
Delta
Tue, Dec 1 - Sat, Dec 5
COS
Colorado Springs
SAN
San Diego
$230 Roundtrip, found 2 days ago
$230
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Dec 1 from Colorado Springs to San Diego, returning Sat, Dec 5, priced at $230 found 2 days ago
United
Sun, Dec 13 - Tue, Dec 15
COS
Colorado Springs
SAN
San Diego
$287 Roundtrip, just found
$287
Roundtrip
just found
Select United flight, departing Sun, Dec 13 from Colorado Springs to San Diego, returning Tue, Dec 15, priced at $287 just found
American Airlines
Tue, Oct 13 - Tue, Oct 20
COS
Colorado Springs
SAN
San Diego
$427 Roundtrip, just found
$427
Roundtrip
just found
Select American Airlines flight, departing Tue, Oct 13 from Colorado Springs to San Diego, returning Tue, Oct 20, priced at $427 just found

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Diego Intl. SAN. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $325
SAN
San Diego Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $325

What you need to know for your flight from Colorado Springs to San Diego Intl.

Colorado Springs (COS) to San Diego (SAN) at a glance

Travel between Colorado Springs (COS) and San Diego (SAN) with a range of airlines offering convenient options for this domestic short-haul route. Whether you prefer full-service airlines or budget-friendly carriers, you can compare itineraries to find one that aligns with your budget and schedule. Get ready to explore San Diego's renowned attractions and neighborhoods! Here, you'll find essential details for flights from Colorado Springs Airport to San Diego International Airport.

  • Fastest flight duration: around 2h 30m non-stop
  • Route distance: roughly 800 miles (1,290 km)
  • Flights per week: around 12 departures on average
  • Typical fares (one-way): economy tickets often range from $95–$355, depending on seasonality and how far ahead you book

Flights from Colorado Springs Airport (COS) to San Diego International Airport (SAN)

According to recent traveler bookings, here are the top airlines chosen for flights from Colorado Springs to San Diego, featuring both non-stop and one-stop options. Many travelers prefer layovers at Denver International Airport (DEN), Sky Harbor International Airport (PHX), and Harry Reid International Airport (LAS), each offering about a 1-hour and 15-minute layover. This variety allows you to customize your itinerary based on price, total travel time, and cabin class to find the best fit for your journey.

  • Southwest Airlines: This budget-friendly airline provides both non-stop and one-stop flights, with one-way ticket prices generally falling between $95 and $335. It represents around 52% of departures on this route, with a typical in-flight duration of 3 hours and 30 minutes, leading to a total travel time of approximately 4 hours and 30 minutes.
  • United: A comprehensive service airline, United offers one-stop flights with one-way fares usually ranging from $110 to $365. It constitutes about 37% of departures for this route, featuring an in-flight duration of 3 hours and 30 minutes, while the total journey time, including layovers, is roughly 4 hours and 30 minutes.
  • Delta: As a full-service airline, Delta provides one-stop service, with one-way fares typically between $95 and $330. It accounts for roughly 6% of the departures on this route, with an in-flight time of 3 hours and 30 minutes and an overall travel time of around 4 hours and 30 minutes, including layover periods.
  • American Airlines: Another full-service option, American Airlines offers one-stop flights with one-way fares generally ranging from $95 to $375. This carrier represents about 4% of the departures on this route, featuring an in-flight duration of 3 hours and 30 minutes and a total travel time of roughly 4 hours and 30 minutes, including layovers.

Best time to fly from Colorado Springs (COS) to San Diego (SAN)

The most popular months for travelers flying from Colorado Springs to San Diego are March, April, and December, when peak temperatures in San Diego reach up to 60.6°F in April. If you prefer quieter travel, consider September, the least busy time to visit with temperatures around 72°F and typically the lowest average one-way fare (around $170). Flight availability peaks in August, with approximately 15 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 10 flights per week.

  • Cheapest time to fly: September usually offers good deals with average one-way fare around $170, roughly 16% cheaper than the yearly average.
  • More budget-friendly months to fly: October and April typically offer average one-way fares of around $181.
  • Most flight options: August has the highest number of flights from Colorado Springs to San Diego, with approximately 15 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January57.4°F (14.1°C)Average12$209
February56.8°F (13.8°C)Moderately Low10$215
March58.1°F (14.5°C)Moderately High13$222
April60.6°F (15.9°C)Moderately High11$184
May62.6°F (17.0°C)Average13$226
June66.4°F (19.1°C)Moderately Low13$198
July70.5°F (21.4°C)Average13$202
August72.3°F (22.4°C)Average15$192
September72.0°F (22.2°C)Moderately Low12$170
October68.2°F (20.1°C)Average13$178
November62.6°F (17.0°C)Average12$219
December57.4°F (14.1°C)Moderately High13$229

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Colorado Springs (COS) to San Diego (SAN)

  • Denver to San Diego (DEN-SAN): Denver International Airport (DEN) is located approximately 73 miles from Colorado Springs Airport (COS). On this route, one-way economy ticket prices typically vary from $40 to $270, influenced by the season and the timing of your booking. Travelers can usually choose between non-stop and one-stop flights. Major airlines operating on this route include Frontier Airlines, known for its budget-friendly fares, and United. Additionally, there are options for business and first-class service available.

How to find the best prices for flights from Colorado Springs (COS) to San Diego (SAN)

Getting some of the best deals on flights from Colorado Springs to San Diego is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Afternoon departures (12 PM-6 PM) often provide lower prices, although morning flights (5 AM-12 PM) are the most popular. Additionally, flying on Monday typically results in cheaper fares, while Thursday remains the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find San Diego hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at San Diego International Airport from Colorado Springs Airport

San Diego welcomes travelers from Colorado Springs with a range of transport options based on price, convenience, and proximity. Here's how to reach San Diego efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in San Diego, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from San Diego International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at San Diego International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From San Diego International Airport, Seaport, a seaport, is conveniently located just about 0.1 miles away on foot. Meanwhile, Middletown Station, a metro station, is approximately 2.3 miles from the airport and typically reached by car, while B Street Cruise Ship Terminal, a cruise terminal, is around 3 miles away by car.

Frequently asked questions

How much does a flight from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) cost?
You can find cheap one-way flights from $104 and cheap return flights from $187 Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) with Expedia. One-way flights generally range between $173 and $555, and roundtrip flights usually range from $286 to $806. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
The cheapest month to fly from COS to SAN is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
Enter COS to SAN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
Southwest Airlines is one of the cheapest airlines offering nonstop flights from Colorado Springs, CO (COS) to San Diego, CA (SAN) with round-trip tickets starting from around $177. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
To find a cheap flight from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
The best airline to fly with from Colorado Springs, CO (COS) to San Diego, CA (SAN) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. WN also offers the most daily flights from COS to SAN, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
On average, there are around 1 nonstop flights per day from (COS) to San Diego Intl. (SAN). For more options, look at flights that include layovers.
What is the earliest flight from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
The earliest flight from Colorado Springs (COS) to San Diego (SAN) typically departs at around 5:00 AM local time, operated by American Airlines. This service is seasonal, active in June, July, and August, and an early departure allows you to maximize your time in San Diego. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
Flying nonstop from COS to SAN takes around 2 hours 30 minutes, with the route covering approximately 815 miles. Flights with a layover typically take 4 hours 20 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
First class seats are offered on the COS to SAN route. First class cabins are available on:

  • American Airlines
  • United Airlines
  • Delta Air Lines

How do I earn miles on a Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) flight with Expedia?
It's easy to earn miles on a Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Diego from COS (COS)?
From COS (COS), you can fly into San Diego Intl. (SAN) to reach San Diego. Some flights may connect through major hubs like Denver Intl. (DEN), Love Field (DAL), Sky Harbor Intl. (PHX) before reaching San Diego. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) at the last minute?
Typically, booking a last minute flight from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) flight and hotel package?
Securing a Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) San Diego Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.)?
If you booked your Colorado Springs, CO (COS) to San Diego, CA (SAN-San Diego Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Colorado Springs
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$187
Distance
815 mi
Average flight time
2 hours 20 mins

Book with confidence

Colorado Springs to San Diego Flights

The cheapest times to fly from Colorado Springs to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Colorado Springs to San Diego are during the month of October. You can find some of the cheapest flights from Colorado Springs to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Colorado Springs to San Diego

Sunday is one of the best days to book for cheap flights from Colorado Springs to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Colorado Springs to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Colorado Springs to San Diego in 2026. You can also book with separate airlines for your outbound and return journeys, from $104 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Colorado Springs to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Colorado Springs to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Colorado Springs to San Diego Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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