How many flights depart from Colorado to San Diego on average per week?

As of August 2025, there are 152 flights per week flying from Colorado to San Diego. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.

What airlines fly to San Diego?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to San Diego from Colorado according to our data. Frontier is the first choice among our users, with 56% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 9 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

How many flights depart from Colorado to San Diego on average per day?

As of August 2025, 21 flights take off from Colorado and land in San Diego each day. The most common flight departure time for this route is 7:00AM, with 37% of daily flights taking off at noon.

What is the cheapest airline that flies from Colorado to San Diego?

Frontier, Southwest, and United Airlines are the most popular carriers operating from Colorado to San Diego

How long does it take to fly to San Diego?

On average, it takes 2h 15m to fly from Colorado to San Diego if you fly out of Colorado Springs (the most popular airport in Colorado) and into San Diego (the most popular airport in San Diego). If you’re flying out of Denver and into San Diego, then the flight time is around 2h 20m.

When did momondo last update prices for flights from Colorado to San Diego Airport?

Prices for flights from Colorado to San Diego Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Colorado to San Diego Airport?

As of August 2025, there are 7 operators available to choose from for flights from Colorado to San Diego Airport.

How old do you have to be to fly from Colorado to San Diego Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$51 Cheap Flights from Colorado to San Diego in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Colorado to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

12:00 pm - 1:28 pmDEN-SAN

2h 28mnonstop

8:00 am - 3:19 pmSAN-DEN

6h 19m1 stop

$105Frontier

Find Deal

Tue, Nov 4 - Wed, Nov 12

12:00 pm - 1:28 pmDEN-SAN

2h 28mnonstop

8:00 am - 8:04 pmSAN-DEN

11h 04m1 stop

$106Frontier

Find Deal

Wed, Oct 29 - Wed, Nov 12

2:55 pm - 4:15 pmDEN-SAN

2h 20mnonstop

2:35 pm - 5:55 pmSAN-DEN

2h 20mnonstop

$117Southwest

Find Deal

Sat, Sep 20 - Tue, Sep 30

3:00 pm - 6:40 pmDEN-SAN

4h 40m1 stop

10:15 am - 4:00 pmSAN-DEN

4h 45m1 stop

$132Southwest

Find Deal

Wed, Oct 15 - Wed, Oct 22

10:29 pm - 7:29 amDEN-SAN

10h 00m1 stop

10:20 am - 1:59 pmSAN-DEN

2h 39mnonstop

$137

Find Deal

Wed, Sep 10 - Sun, Sep 14

10:29 pm - 7:29 amDEN-SAN

10h 00m1 stop

9:03 pm - 12:38 amSAN-DEN

2h 35mnonstop

$138

Find Deal

Wed, Sep 10 - Sun, Sep 14

4:37 pm - 11:56 pmCOS-SAN

8h 19m1 stop

7:21 am - 3:47 pmSAN-COS

7h 26m1 stop

$197American Airlines

Find Deal

Thu, Nov 13 - Tue, Nov 18

5:10 pm - 8:25 pmCOS-SAN

4h 15m1 stop

4:03 pm - 9:54 pmSAN-COS

4h 51m1 stop

$212United Airlines

Find Deal

Sat, Sep 13 - Fri, Sep 19

11:01 am - 3:53 pmCOS-SAN

5h 52m1 stop

3:55 pm - 11:39 pmSAN-COS

6h 44m1 stop

$225American Airlines

Find Deal

Fri, Oct 3 - Sun, Oct 5

5:30 am - 9:09 amCOS-SAN

4h 39m1 stop

4:03 pm - 9:54 pmSAN-COS

4h 51m1 stop

$227United Airlines

Find Deal

Fri, Sep 19 - Sun, Sep 21

Frontier flights from Colorado to San Diego

Our best Frontier deals on Colorado to San Diego flight tickets

Frontier

Nov 4

DEN12:00 pmDenver Intl

2h 28m

SAN1:28 pmSan Diego

Nov 12

SAN8:00 amSan Diego

6h 19m

1 stop

DEN3:19 pmDenver Intl

$105

Find similar

Frontier

Oct 29

DEN12:00 pmDenver Intl

2h 28m

SAN1:28 pmSan Diego

Nov 12

SAN8:00 amSan Diego

11h 04m

1 stop

DEN8:04 pmDenver Intl

$106

Find similar

Frontier

Sep 10

DEN8:50 pmDenver Intl

2h 34m

SAN10:24 pmSan Diego

Sep 13

SAN10:16 amSan Diego

4h 20m

1 stop

DEN3:36 pmDenver Intl

$107

Find similar

American Airlines flights from Colorado to San Diego

Our best American Airlines deals on Colorado to San Diego flight tickets

American Airlines

Nov 13

COS4:37 pmColorado Springs

8h 19m

1 stop

SAN11:56 pmSan Diego

Nov 18

SAN7:21 amSan Diego

7h 26m

1 stop

COS3:47 pmColorado Springs

$197

Find similar

American Airlines

Oct 3

COS11:01 amColorado Springs

5h 52m

1 stop

SAN3:53 pmSan Diego

Oct 5

SAN3:55 pmSan Diego

6h 44m

1 stop

COS11:39 pmColorado Springs

$225

Find similar

American Airlines

Sep 15

GJT6:38 pmGrand Junction Regnl

4h 14m

1 stop

SAN9:52 pmSan Diego

Oct 2

SAN4:40 pmSan Diego

6h 34m

1 stop

GJT12:14 amGrand Junction Regnl

$229

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Tue 11/4

12:00 pm-1:28 pm

Nonstop2h 28m

San Diego

Wed 11/12

8:00 am-3:19 pm

1 stop6h 19m

$105

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 10/29

12:00 pm-1:28 pm

Nonstop2h 28m

San Diego

Wed 11/12

8:00 am-8:04 pm

1 stop11h 04m

$106

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 9/20

2:55 pm-4:15 pm

Nonstop2h 20m

San Diego

Tue 9/30

2:35 pm-5:55 pm

Nonstop2h 20m

$117

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 10/15

3:00 pm-6:40 pm

1 stop4h 40m

San Diego

Wed 10/22

10:15 am-4:00 pm

1 stop4h 45m

$132

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 9/10

10:29 pm-7:29 am

1 stop10h 00m

San Diego

Sun 9/14

10:20 am-1:59 pm

Nonstop2h 39m

$137

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 9/10

10:29 pm-7:29 am

1 stop10h 00m

San Diego

Sun 9/14

9:03 pm-12:38 am

Nonstop2h 35m

$138

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

5:10 pm-8:25 pm

1 stop4h 15m

San Diego

Fri 9/19

4:03 pm-9:54 pm

1 stop4h 51m

$212

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 10/3

11:01 am-3:53 pm

1 stop5h 52m

San Diego

Sun 10/5

3:55 pm-11:39 pm

1 stop6h 44m

$225

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Fri 9/19

5:30 am-9:09 am

1 stop4h 39m

San Diego

Sun 9/21

4:03 pm-9:54 pm

1 stop4h 51m

$227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of October, then departing from Colorado during the month September is also very affordable. Most momondo users find prices during this month for around $161.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Colorado to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $193. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $253. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $192. Flights at noon are often more expensive with an average ticket price of $307.

What is the cheapest Colorado to San Diego flight route?

Fly from Denver Intl to San Diego for the best Colorado - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $196 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Colorado for as low as $162 on momondo.

What cabin class options are available on Colorado to San Diego flights?

There are 4 cabin classes available to choose from on Colorado to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to San Diego flights?

No. A direct flight is the cheapest option for a flight between Colorado to San Diego.

Cheap Colorado to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to San Diego

Best Price Found	$83
Fastest flight time	2h 15m
Direct flights	Every day
Airports in San Diego	1 airport

The best one-way flight to San Diego from Colorado in the past 72 hours is $83. The best round-trip flight deal from Colorado to San Diego found on momondo in the last 72 hours is $144.

The fastest flight from Colorado to San Diego takes 2h 15m

Direct flights go from Colorado to San Diego every day.

There is 1 airport near San Diego: San Diego (SAN)

Search flight deals

When did momondo last update prices for flights from Colorado to San Diego Airport?
Prices for flights from Colorado to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to San Diego Airport?
As of August 2025, there are 7 operators available to choose from for flights from Colorado to San Diego Airport.
How old do you have to be to fly from Colorado to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Colorado to San Diego?
Based on momondo bookings for flights between Colorado and San Diego, the leading plane model is Airbus A321neo, making up 18.54% of the total bookings. Other popular models include Boeing 737 MAX 8 with 15.60%, Boeing 737-800 with 12.41%, and Airbus A320neo with 10.51%.

Best airlines flying from Colorado to San Diego

Compare and see reviews for airlines that fly from Colorado to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $65	Free Cancellation	Rating 5.8 3,207 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $137	Free Cancellation	Rating 7.8 2,672 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $138	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $157	Free Cancellation	Rating 8.0 4,245 reviews	Search Southwest flights
United Airlines	PriceFrom $158	Free Cancellation	Rating 7.4 8,930 reviews	Search United Airlines flights
Delta	PriceFrom $206	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $212	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Coronado

Chula Vista

El Cajon

Julian

La Mesa

National City

Imperial Beach

Poway

San Ysidro

Borrego Springs

Alpine

Lemon Grove

Santee

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to San Diego?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Colorado to San Diego. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Colorado to San Diego with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Diego from Colorado which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado to San Diego?

Once you have performed a search for Colorado to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Colorado to San Diego right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Colorado to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 8/26

Tue 9/2

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing California

Popular cities in the United States

Flights to New Yorkfrom $47

Flights to Los Angelesfrom $47

Flights to Miamifrom $50

Flights to Chicagofrom $45

Flights to Orlandofrom $47

Flights to Las Vegasfrom $25

Flights to San Franciscofrom $54

Flights to Washington, D.C.from $52

Flights to Bostonfrom $47

Flights to Atlantafrom $48

Flights to Dallasfrom $50

Flights to Seattlefrom $76

Cheap flights from Colorado to San Diego from $57

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to San Diego departing on 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Colorado to San Diego

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Colorado to San Diego

Our best Frontier deals on Colorado to San Diego flight tickets

American Airlines flights from Colorado to San Diego

Our best American Airlines deals on Colorado to San Diego flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to San Diego that are best for you.

See travel insights to San Diego from

How to get the cheapest flight ticket from Colorado to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of October, then departing from Colorado during the month September is also very affordable. Most momondo users find prices during this month for around $161.

What is the cheapest day to depart on your flight to San Diego?

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $192. Flights at noon are often more expensive with an average ticket price of $307.

What is the cheapest Colorado to San Diego flight route?

Fly from Denver Intl to San Diego for the best Colorado - San Diego flight prices

How far in advance should I book a flight to San Diego?

What cabin class options are available on Colorado to San Diego flights?

There are 4 cabin classes available to choose from on Colorado to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to San Diego flights?

No. A direct flight is the cheapest option for a flight between Colorado to San Diego.

What is the cheapest airline that flies from Colorado to San Diego?

Frontier, Southwest, and United Airlines are the most popular carriers operating from Colorado to San Diego

What airlines fly to San Diego?

How many flights depart from Colorado to San Diego on average per day?

As of August 2025, 21 flights take off from Colorado and land in San Diego each day. The most common flight departure time for this route is 7:00AM, with 37% of daily flights taking off at noon.

How many flights depart from Colorado to San Diego on average per week?

As of August 2025, there are 152 flights per week flying from Colorado to San Diego. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.

How long does it take to fly to San Diego?

On average, it takes 2h 15m to fly from Colorado to San Diego if you fly out of Colorado Springs (the most popular airport in Colorado) and into San Diego (the most popular airport in San Diego). If you’re flying out of Denver and into San Diego, then the flight time is around 2h 20m.

Cheap Colorado to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to San Diego

Best Price Found

Fastest flight time

Direct flights

Airports in San Diego

When did momondo last update prices for flights from Colorado to San Diego Airport?

How many operators does momondo search for flights from Colorado to San Diego Airport?

How old do you have to be to fly from Colorado to San Diego Airport?

What documentation or ID do you need to fly to San Diego Airport?

What is the most popular plane model from Colorado to San Diego?

Best airlines flying from Colorado to San Diego

Compare and see reviews for airlines that fly from Colorado to San Diego with momondo

Traveling to a place near San Diego?

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to San Diego?

Can I find flights from Colorado to San Diego with flexible booking policies on momondo?

How can momondo help me find flights from Colorado to San Diego?

I’m not ready to book a flight from Colorado to San Diego right now. Can momondo alert me if prices change?

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California