Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Diego to Denver from $41

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 Denver departing on 12/27. 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 San Diego to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:41 am - 10:18 amSAN-DEN
2h 37mnonstop
Frontier Logo
8:50 pm - 10:25 pmDEN-SAN
2h 35mnonstop
$80Frontier
Find Deal
Tue, Oct 21 - Sat, Oct 25
Frontier Logo
7:00 am - 10:37 amSAN-DEN
2h 37mnonstop
Frontier Logo
8:30 am - 9:57 amDEN-SAN
2h 27mnonstop
$81Frontier
Find Deal
Sat, Oct 25 - Mon, Oct 27
Frontier Logo
6:41 am - 10:18 amSAN-DEN
2h 37mnonstop
Frontier Logo
7:50 am - 9:20 amDEN-SAN
2h 30mnonstop
$82Frontier
Find Deal
Fri, Nov 7 - Sun, Nov 9
Frontier Logo
6:41 am - 10:18 amSAN-DEN
2h 37mnonstop
Frontier Logo
9:48 am - 11:17 amDEN-SAN
2h 29mnonstop
$83Frontier
Find Deal
Sun, Oct 26 - Thu, Oct 30
Frontier Logo
6:41 am - 10:18 amSAN-DEN
2h 37mnonstop
Frontier Logo
9:48 am - 11:17 amDEN-SAN
2h 29mnonstop
$84Frontier
Find Deal
Mon, Nov 3 - Mon, Nov 10
Multiple Airlines Logo
8:15 am - 11:34 amSAN-DEN
2h 19mnonstop
Multiple Airlines Logo
9:48 am - 11:17 amDEN-SAN
2h 29mnonstop
$98Multiple Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
Multiple Airlines Logo
8:14 pm - 11:59 pmSAN-DEN
2h 45mnonstop
Multiple Airlines Logo
10:30 pm - 12:01 amDEN-SAN
2h 31mnonstop
$102Multiple Airlines
Find Deal
Sat, Jan 3 - Thu, Jan 8
Southwest Logo
7:40 pm - 12:35 amSAN-DEN
3h 55m1 stop
Southwest Logo
6:40 am - 8:15 amDEN-SAN
2h 35mnonstop
$132Southwest
Find Deal
Fri, Dec 19 - Wed, Dec 24
United Airlines Logo
5:55 pm - 12:35 amSAN-DEN
5h 40m1 stop
United Airlines Logo
7:24 pm - 8:54 pmDEN-SAN
2h 30mnonstop
$133United Airlines
Find Deal
Sat, Nov 15 - Mon, Nov 24
Southwest Logo
12:45 pm - 4:15 pmSAN-DEN
2h 30mnonstop
Southwest Logo
7:55 am - 9:25 amDEN-SAN
2h 30mnonstop
$137Southwest
Find Deal
Fri, Dec 19 - Sun, Jan 4

Frontier flights from San Diego to Denver

Our best Frontier deals on San Diego to Denver flight tickets
Frontier
Oct 21
SAN6:41 amSan Diego
2h 37m
DEN10:18 amDenver Intl
Oct 25
DEN8:50 pmDenver Intl
2h 35m
SAN10:25 pmSan Diego
$80
Find similar
Frontier
Oct 25
SAN7:00 amSan Diego
2h 37m
DEN10:37 amDenver Intl
Oct 27
DEN8:30 amDenver Intl
2h 27m
SAN9:57 amSan Diego
$81
Find similar
Frontier
Nov 7
SAN6:41 amSan Diego
2h 37m
DEN10:18 amDenver Intl
Nov 9
DEN7:50 amDenver Intl
2h 30m
SAN9:20 amSan Diego
$82
Find similar

Southwest flights from San Diego to Denver

Our best Southwest deals on San Diego to Denver flight tickets
Southwest
Dec 19
SAN7:40 pmSan Diego
3h 55m
1 stop
DEN12:35 amDenver Intl
Dec 24
DEN6:40 amDenver Intl
2h 35m
SAN8:15 amSan Diego
$132
Find similar
Southwest
Dec 19
SAN12:45 pmSan Diego
2h 30m
DEN4:15 pmDenver Intl
Jan 4
DEN7:55 amDenver Intl
2h 30m
SAN9:25 amSan Diego
$137
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Denver 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 October 6, 2025.
Use the filters below to find and compare flights from San Diego to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 10/21

6:41 am-10:18 am

Nonstop2h 37m

Denver Intl

Sat 10/25

8:50 pm-10:25 pm

Nonstop2h 35m

$80

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 10/25

7:00 am-10:37 am

Nonstop2h 37m

Denver Intl

Mon 10/27

8:30 am-9:57 am

Nonstop2h 27m

$81

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 11/7

6:41 am-10:18 am

Nonstop2h 37m

Denver Intl

Sun 11/9

7:50 am-9:20 am

Nonstop2h 30m

$82

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sun 10/26

6:41 am-10:18 am

Nonstop2h 37m

Denver Intl

Thu 10/30

9:48 am-11:17 am

Nonstop2h 29m

$83

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Mon 11/3

6:41 am-10:18 am

Nonstop2h 37m

Denver Intl

Mon 11/10

9:48 am-11:17 am

Nonstop2h 29m

$84

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 11/1

8:15 am-11:34 am

Nonstop2h 19m

Denver Intl

Mon 11/3

9:48 am-11:17 am

Nonstop2h 29m

$98

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 1/3

8:14 pm-11:59 pm

Nonstop2h 45m

Denver Intl

Thu 1/8

10:30 pm-12:01 am

Nonstop2h 31m

$102

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 12/19

7:40 pm-12:35 am

1 stop3h 55m

Denver Intl

Wed 12/24

6:40 am-8:15 am

Nonstop2h 35m

$132

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 11/15

5:55 pm-12:35 am

1 stop5h 40m

Denver Intl

Mon 11/24

7:24 pm-8:54 pm

Nonstop2h 30m

$133

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 12/19

12:45 pm-4:15 pm

Nonstop2h 30m

Denver Intl

Sun 1/4

7:55 am-9:25 am

Nonstop2h 30m

$137

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Denver from

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

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 Denver?

The cheapest month to fly to Denver from San Diego is in January. Flight prices, which tend to average around $136, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until February to fly from San Diego, when ticket prices are also cheap, with an average price of $153.

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

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $270. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Monday, with ticket prices averaging around $330.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $223. Flights in the afternoon are often more expensive with an average ticket price of $327.

What is the cheapest San Diego to Denver Intl flight route?

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

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

You are more likely to see cheaper flights to Denver from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $191 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from San Diego for as low as $154 on momondo.

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

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

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

How have San Diego to Denver flight prices changed over time?

As of October 2025, prices for San Diego to Denver flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to Denver (SAN to DEN) flight deals and tips

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

Best Price Found

$121

Fastest flight time

2h 18m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from San Diego in the past 72 hours is $121. The best round-trip flight deal from San Diego to Denver found on momondo in the last 72 hours is $173.
The fastest flight from San Diego to Denver takes 2h 18m
Direct flights go from San Diego to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is San Diego to Denver Intl by plane?

    The distance between San Diego and Denver Intl is about 832.3 mi. 2h 19m is a normal flight duration for this route.

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

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

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

  • How old do you have to be to fly from San Diego Airport to Denver Intl 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 San Diego Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

  • What is the most popular airline from San Diego to Denver?

Best airlines flying from San Diego to Denver

Compare and see reviews for airlines that fly from San Diego to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $68Free CancellationRating
5.8
3,146 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $68Free CancellationRating
7.8
2,772 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $107Free CancellationRating
8.0
11,027 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $137Free CancellationRating
8.0
4,232 reviews
Search Southwest flights
United AirlinesPriceFrom $157Free CancellationRating
7.4
8,957 reviews
Search United Airlines flights
DeltaPriceFrom $206Free CancellationRating
7.9
7,967 reviews
Search Delta flights

  • Alaska Airlines Flights From San Diego to Denver

    Alaska Airlines flight deals from San Diego to Denver start from $107 round-trip. Over the 21 Alaska Airlines flights for this route in a normal week, average airfare is usually $196 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From San Diego to Denver

    $137 is the best Southwest flight deal from San Diego to Denver found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $264, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,232 user reviews) flies into Denver from San Diego 54 times in an average week so prices can vary.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Boulder
Manitou Springs
Longmont
Lakewood
Greeley
Thornton
Westminster
Winter Park
Copper Mountain
Frisco
Grand Lake
Silverthorne
Central City

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Denver from San Diego.

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

Yes. momondo enables you to select and highlight flights to Denver from San Diego with this policy.

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

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 Denver.

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

Of course. momondo tracks the price of San Diego to Denver 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 Denver 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
Wed 11/5
Wed 11/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States