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Cheap flights from San Diego to Colorado from $32

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Colorado departing on 5/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Frontier Logo
6:25 am - 10:00 am
SAN
-
DEN
2h 35mnonstop
Frontier Logo
10:29 pm - 12:08 am
DEN
-
SAN
2h 39mnonstop
$50Frontier
Wed, Mar 18 - Sun, Mar 22
Frontier Logo
9:18 pm - 12:47 am
SAN
-
DEN
2h 29mnonstop
Frontier Logo
10:30 pm - 12:02 am
DEN
-
SAN
2h 32mnonstop
$51Frontier
Mon, Mar 30 - Wed, Apr 8
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
Frontier Logo
10:30 pm - 12:02 am
DEN
-
SAN
2h 32mnonstop
$54Frontier
Wed, Apr 1 - Wed, Apr 8
American Airlines Logo
6:15 am - 4:00 pm
SAN
-
COS
8h 45m
1 stop
American Airlines Logo
1:59 pm - 8:37 pm
COS
-
SAN
7h 38m
1 stop
$177American Airlines
Tue, Mar 10 - Tue, Mar 17
Southwest Logo
5:35 pm - 11:35 pm
SAN
-
COS
5h 00m
1 stop
Southwest Logo
6:00 am - 12:55 pm
COS
-
SAN
7h 55m
2 stops
$182Southwest
Tue, Mar 10 - Tue, Mar 17
Southwest Logo
12:15 pm - 9:20 pm
SAN
-
COS
8h 05m
2 stops
Southwest Logo
6:00 am - 12:55 pm
COS
-
SAN
7h 55m
2 stops
$187Southwest
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
6:30 am - 2:30 pm
SAN
-
COS
7h 00m
1 stop
United Airlines Logo
5:05 pm - 8:51 pm
COS
-
SAN
4h 46m
1 stop
$205United Airlines
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
6:30 am - 12:27 pm
SAN
-
MTJ
4h 57m
1 stop
United Airlines Logo
1:32 pm - 5:40 pm
MTJ
-
SAN
5h 08m
1 stop
$211United Airlines
Mon, Feb 23 - Fri, Feb 27
American Airlines Logo
6:24 am - 11:32 am
SAN
-
GJT
4h 08m
1 stop
American Airlines Logo
4:46 pm - 10:30 pm
GJT
-
SAN
6h 44m
1 stop
$211American Airlines
Sun, Mar 1 - Sat, Mar 7
Alaska Airlines Logo
8:26 pm - 3:43 pm
SAN
-
EGE
18h 17m
1 stop
Alaska Airlines Logo
5:36 pm - 7:01 pm
EGE
-
SAN
2h 25mnonstop
$380Alaska Airlines
Fri, Mar 6 - Mon, Mar 9

Frontier flights from San Diego to Colorado

Our best Frontier deals on San Diego to Colorado flight tickets
Frontier
Mar 18
SAN6:25 amSan Diego
2h 35m
DEN10:00 amDenver Intl
Mar 22
DEN10:29 pmDenver Intl
2h 39m
SAN12:08 amSan Diego
$50
Frontier
Mar 30
SAN9:18 pmSan Diego
2h 29m
DEN12:47 amDenver Intl
Apr 8
DEN10:30 pmDenver Intl
2h 32m
SAN12:02 amSan Diego
$51
Frontier
Apr 1
SAN6:25 amSan Diego
2h 40m
DEN10:05 amDenver Intl
Apr 8
DEN10:30 pmDenver Intl
2h 32m
SAN12:02 amSan Diego
$54

American Airlines flights from San Diego to Colorado

Our best American Airlines deals on San Diego to Colorado flight tickets
American Airlines
Mar 10
SAN12:45 pmSan Diego
8h 25m
1 stop
COS10:10 pmColorado Springs
Mar 17
COS1:59 pmColorado Springs
7h 38m
1 stop
SAN8:37 pmSan Diego
$177
American Airlines
Mar 1
SAN6:24 amSan Diego
4h 08m
1 stop
GJT11:32 amGrand Junction Regnl
Mar 7
GJT4:46 pmGrand Junction Regnl
6h 44m
1 stop
SAN10:30 pmSan Diego
$211
American Airlines
Mar 1
SAN6:24 amSan Diego
4h 08m
1 stop
GJT11:32 amGrand Junction Regnl
Mar 7
GJT12:08 pmGrand Junction Regnl
4h 52m
1 stop
SAN4:00 pmSan Diego
$266

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Colorado 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 February 10, 2026.
Use the filters below to find and compare flights from San Diego to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 3/18

6:25 am-10:00 am

Nonstop2h 35m

Denver Intl

Sun 3/22

10:29 pm-12:08 am

Nonstop2h 39m

$50

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Mon 3/30

9:18 pm-12:47 am

Nonstop2h 29m

Denver Intl

Wed 4/8

10:30 pm-12:02 am

Nonstop2h 32m

$51

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 4/1

6:25 am-10:05 am

Nonstop2h 40m

Denver Intl

Wed 4/8

10:30 pm-12:02 am

Nonstop2h 32m

$54

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

Tue 3/10

6:15 am-4:00 pm

1 stop8h 45m

Colorado Springs

Tue 3/17

1:59 pm-8:37 pm

1 stop7h 38m

$177

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

Tue 3/10

5:35 pm-11:35 pm

1 stop5h 00m

Colorado Springs

Tue 3/17

6:00 am-12:55 pm

2 stops7h 55m

$182

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

Tue 3/10

12:15 pm-9:20 pm

2 stops8h 05m

Colorado Springs

Tue 3/17

6:00 am-12:55 pm

2 stops7h 55m

$187

San DiegoColorado Springs

SAN - COS

SANCOS

San Diego

Tue 2/24

6:30 am-2:30 pm

1 stop7h 00m

Colorado Springs

Sat 2/28

5:05 pm-8:51 pm

1 stop4h 46m

$205

San DiegoMontrose

SAN - MTJ

SANMTJ

San Diego

Mon 2/23

6:30 am-12:27 pm

1 stop4h 57m

Montrose County

Fri 2/27

1:32 pm-5:40 pm

1 stop5h 08m

$211

San DiegoGrand Junction

SAN - GJT

SANGJT

San Diego

Sun 3/1

6:24 am-11:32 am

1 stop4h 08m

Grand Junction Regnl

Sat 3/7

4:46 pm-10:30 pm

1 stop6h 44m

$211

San DiegoVail

SAN - EGE

SANEGE

San Diego

Fri 3/6

8:26 pm-3:43 pm

1 stop18h 17m

Vail Eagle County

Mon 3/9

5:36 pm-7:01 pm

Nonstop2h 25m

$380

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Colorado from

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

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 Colorado?

The month of December is, on average, the cheapest month to fly to Colorado from San Diego, with most prices found around $140. The month of February is another great option to travel to Colorado, with average flight prices from San Diego averaging around $141.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from San Diego to Colorado is on a Friday when prices can be found for as low as $258. On the other hand, Monday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $324.

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $201. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $293 per ticket.

What is the cheapest San Diego to Colorado flight route?

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

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $179 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from San Diego for as low as $144 on momondo.

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

There are 4 cabin classes available to choose from on San Diego to Colorado 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 San Diego to Colorado flights?

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

Cheap San Diego to Colorado flight deals and tips

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

Best Price Found

$106

Fastest flight time

2h 15m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Colorado

87 airports
The best one-way flight to Colorado from San Diego in the past 72 hours is $106. The best round-trip flight deal from San Diego to Colorado found on momondo in the last 72 hours is $158.
The fastest flight from San Diego to Colorado takes 2h 15m
Direct flights go from San Diego to Colorado on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Alaska Airlines.
There are 87 airports in Colorado. From San Diego there are direct flights to Hayden Yampa Valley (HDN), Colorado Springs (COS), Denver Intl (DEN).
Search flight deals

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

    Prices for flights from San Diego Airport to Colorado refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Colorado.

  • What documentation or ID do you need to fly to Colorado?

    The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from San Diego to Colorado

Compare and see reviews for airlines that fly from San Diego to Colorado with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $55Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $68Free CancellationRating
7.8
2,831 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $103Free CancellationRating
8.0
11,871 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $117Free CancellationRating
8.0
4,282 reviews
Search Southwest flights
United AirlinesPriceFrom $129Free CancellationRating
7.4
9,267 reviews
Search United Airlines flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,178 reviews
Search Delta flights
American AirlinesPriceFrom $218Free CancellationRating
7.2
11,260 reviews
Search American Airlines flights

Why use momondo?

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

It is quick and easy to find San Diego to Colorado flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Colorado that suits you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Diego to Colorado.

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

Price alerts on flights to Colorado from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Colorado 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.
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