Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Colorado to San Diego from $53

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 2/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Colorado to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:02 pm - 2:34 pm
DEN
-
SAN
2h 32mnonstop
Frontier Logo
7:10 am - 10:41 am
SAN
-
DEN
2h 31mnonstop
$55Frontier
Wed, Jan 7 - Wed, Jan 14
Frontier Logo
9:45 pm - 11:16 pm
DEN
-
SAN
2h 31mnonstop
Frontier Logo
7:10 am - 10:41 am
SAN
-
DEN
2h 31mnonstop
$56Frontier
Sat, Jan 10 - Tue, Jan 13
Multiple Airlines Logo
3:07 pm - 9:57 am
COS
-
SAN
19h 50m1 stop
Multiple Airlines Logo
2:57 pm - 2:17 pm
SAN
-
COS
22h 20m1 stop
$179Multiple Airlines
Sun, Jan 11 - Sat, Jan 17
United Airlines Logo
7:00 am - 12:59 pm
GJT
-
SAN
6h 59m1 stop
United Airlines Logo
6:30 am - 2:46 pm
SAN
-
GJT
7h 16m1 stop
$197United Airlines
Sun, Jan 25 - Sun, Feb 1
American Airlines Logo
11:47 am - 3:03 pm
DRO
-
SAN
4h 16m1 stop
American Airlines Logo
6:15 am - 11:17 am
SAN
-
DRO
4h 02m1 stop
$200American Airlines
Fri, Jan 23 - Sun, Jan 25
United Airlines Logo
6:10 pm - 10:37 pm
GJT
-
SAN
5h 27m1 stop
United Airlines Logo
6:15 am - 2:46 pm
SAN
-
GJT
7h 31m2 stops
$202United Airlines
Sun, Jan 25 - Sun, Feb 1
American Airlines Logo
1:09 pm - 8:41 pm
ASE
-
SAN
8h 32m1 stop
American Airlines Logo
6:20 am - 4:28 pm
SAN
-
ASE
9h 08m1 stop
$211American Airlines
Fri, Jan 23 - Mon, Jan 26
Delta Logo
1:12 pm - 6:53 pm
EGE
-
SAN
6h 41m1 stop
Delta Logo
6:35 am - 12:29 pm
SAN
-
EGE
4h 54m1 stop
$211Delta
Fri, Jan 9 - Tue, Jan 13
Multiple Airlines Logo
3:07 pm - 9:57 am
COS
-
SAN
19h 50m1 stop
Multiple Airlines Logo
7:10 am - 2:17 pm
SAN
-
COS
30h 07m2 stops
$211Multiple Airlines
Sun, Jan 11 - Sat, Jan 17
Delta Logo
12:00 pm - 8:43 pm
COS
-
SAN
9h 43m2 stops
Delta Logo
11:00 am - 10:23 pm
SAN
-
COS
10h 23m2 stops
$216Delta
Wed, Jan 14 - Wed, Jan 21

Frontier flights from Colorado to San Diego

Our best Frontier deals on Colorado to San Diego flight tickets
Frontier
Jan 7
DEN1:02 pmDenver Intl
2h 32m
SAN2:34 pmSan Diego
Jan 14
SAN7:10 amSan Diego
2h 31m
DEN10:41 amDenver Intl
$55
Find similar
Frontier
Jan 10
DEN9:45 pmDenver Intl
2h 31m
SAN11:16 pmSan Diego
Jan 13
SAN7:10 amSan Diego
2h 31m
DEN10:41 amDenver Intl
$56
Find similar
Frontier
Jan 20
DEN9:44 pmDenver Intl
2h 47m
SAN11:31 pmSan Diego
Jan 27
SAN7:00 amSan Diego
2h 31m
DEN10:31 amDenver Intl
$57
Find similar

United Airlines flights from Colorado to San Diego

Our best United Airlines deals on Colorado to San Diego flight tickets
United Airlines
Jan 10
DEN7:10 pmDenver Intl
2h 32m
SAN8:42 pmSan Diego
Jan 14
SAN6:55 pmSan Diego
2h 34m
DEN10:29 pmDenver Intl
$117
Find similar
United Airlines
Jan 25
GJT7:00 amGrand Junction Regnl
6h 59m
1 stop
SAN12:59 pmSan Diego
Feb 1
SAN6:30 amSan Diego
7h 16m
1 stop
GJT2:46 pmGrand Junction Regnl
$197
Find similar
United Airlines
Jan 25
GJT6:10 pmGrand Junction Regnl
5h 27m
1 stop
SAN10:37 pmSan Diego
Feb 1
SAN6:15 amSan Diego
7h 31m
2 stops
GJT2:46 pmGrand Junction Regnl
$202
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Colorado 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Colorado to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 1/7

1:02 pm-2:34 pm

Nonstop2h 32m

San Diego

Wed 1/14

7:10 am-10:41 am

Nonstop2h 31m

$55

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 1/10

9:45 pm-11:16 pm

Nonstop2h 31m

San Diego

Tue 1/13

7:10 am-10:41 am

Nonstop2h 31m

$56

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sun 1/11

3:07 pm-9:57 am

1 stop19h 50m

San Diego

Sat 1/17

2:57 pm-2:17 pm

1 stop22h 20m

$179

Grand JunctionSan Diego

GJT - SAN

GJTSAN

Grand Junction Regnl

Sun 1/25

7:00 am-12:59 pm

1 stop6h 59m

San Diego

Sun 2/1

6:30 am-2:46 pm

1 stop7h 16m

$197

DurangoSan Diego

DRO - SAN

DROSAN

Durango La Plata County

Fri 1/23

11:47 am-3:03 pm

1 stop4h 16m

San Diego

Sun 1/25

6:15 am-11:17 am

1 stop4h 02m

$200

Grand JunctionSan Diego

GJT - SAN

GJTSAN

Grand Junction Regnl

Sun 1/25

6:10 pm-10:37 pm

1 stop5h 27m

San Diego

Sun 2/1

6:15 am-2:46 pm

2 stops7h 31m

$202

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Fri 1/23

1:09 pm-8:41 pm

1 stop8h 32m

San Diego

Mon 1/26

6:20 am-4:28 pm

1 stop9h 08m

$211

VailSan Diego

EGE - SAN

EGESAN

Vail Eagle County

Fri 1/9

1:12 pm-6:53 pm

1 stop6h 41m

San Diego

Tue 1/13

6:35 am-12:29 pm

1 stop4h 54m

$211

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Sun 1/11

3:07 pm-9:57 am

1 stop19h 50m

San Diego

Sat 1/17

7:10 am-2:17 pm

2 stops30h 07m

$211

Colorado SpringsSan Diego

COS - SAN

COSSAN

Colorado Springs

Wed 1/14

12:00 pm-8:43 pm

2 stops9h 43m

San Diego

Wed 1/21

11:00 am-10:23 pm

2 stops10h 23m

$216

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 January, then departing from Colorado during the month October is also very affordable. Most momondo users find prices during this month for around $157.

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 Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $202. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $244. 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 $187. Flights at noon are often more expensive with an average ticket price of $305.

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 $192 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 $150 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

$94

Fastest flight time

2h 17m

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 $94. The best round-trip flight deal from Colorado to San Diego found on momondo in the last 72 hours is $122.
The fastest flight from Colorado to San Diego takes 2h 17m
Direct flights go from Colorado to San Diego every day.
There is 1 airport in San Diego. From Colorado there are direct flights to 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?

  • 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?

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
FrontierPriceFrom $58Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $78Free CancellationRating
7.8
2,817 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $117Free CancellationRating
8.0
11,432 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $118Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
United AirlinesPriceFrom $127Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Imperial Beach
Poway
La Mesa
Borrego Springs
San Ysidro
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
Sat 1/10
Sat 1/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States