Find Cheap Flights from San Diego to Denver International (SAN - DEN)

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Sat 11/25
Sat 12/2
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Good to Know

Low Season:
August
Best time to beat the crowds
3%
expected price decrease
High Season:
March
Most popular time to fly
15%
expected price increase
Average Price:
$201
(avg. price over the last 2 weeks)
Good Deal:
$126
or less (round trip)

When to Book Flights from San Diego to Denver International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $126 or less.
The cheapest flight from San Diego to Denver International was found 20 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
High season is considered to be February, March and April. The cheapest month to fly is August.
Morning departure is around 15% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Diego to Denver International Flights

How long does a flight from San Diego to Denver International take?
An average nonstop flight takes 2h 20m, covering a distance of 852 miles.
How many flights are there between San Diego and Denver International?
There are 297 (nonstop) flights between San Diego and Denver International per week, averaging 45 per day.
Which airlines provide the cheapest flights from San Diego to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($87) and Multiple Airlines ($118)
Do I need a passport to fly between San Diego and Denver International?
No.
Which airlines fly most frequently between San Diego and Denver International?
Southwest (15 times daily), Air Canada (11 times daily), United (11 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Diego to Denver International?
For San Diego to Denver International, Wednesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Denver International back to San Diego, the best deals are generally found on Saturday, with Wednesday being the most expensive.

Book cheap flights from San Diego to Denver International (round-trip)

Airports
Origin
San Diego
$87
only
$87
Destination
Denver
$87
only
$87
Wed, Dec 13
SAN
DEN
2h 20m
Thu, Dec 14
DEN
SAN
2h 28m
Trip: 2 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Mediocre 3.0

Inexpensive flight

The crew was very rude to me and other passengers. He talked to us like we were children and that he was better than us, and seemed to enjoy doing it. The plane itself was filthy, small, and uncomfortable.

SAN
DEN
Mediocre 2.0

The change of flights. Had to stay in airport overnight!

SAN
DEN
Okay 4.0

On time and connection very. Lise to original flight

Seats terrible No wi fi Lousy food selection

SAN
DEN
Okay 4.6

Flight was delayed 2 1/2 hours then my bag didn't arrive at baggage claim for 45 minutes

SAN
DEN
Mediocre 2.0

Flight crew did try to make up time.

Extremely late. Should of given us free non alcoholic drinks to make up for being so late.

Sat, Dec 2
SAN
DEN
9h 00m
Sat, Dec 9
DEN
SAN
2h 26m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 12
SAN
DEN
2h 20m
Mon, Dec 18
DEN
SAN
2h 28m
Trip: 7 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Mediocre 2.0

The change of flights. Had to stay in airport overnight!

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 2.0

They nickle and dime you for everything. Charging for drinks and carry-on luggage? No reclining seats, pathetic tray tables. Never again. I'd rather pay more and have a decent flight.

SAN
DEN
Mediocre 2.0

The delayed flight and the smell of puke for the entire duration of the flight after an indicidual puked before leaving the gate.

SAN
DEN
Mediocre 2.0

Flight crew did try to make up time.

Extremely late. Should of given us free non alcoholic drinks to make up for being so late.

Sat, Jan 20
SAN
DEN
2h 20m
Mon, Jan 22
DEN
SAN
2h 28m
Trip: 3 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Mediocre 2.0

The flight coming in before we left got there luggage lost and caused us to miss our flight because there was only one person dealing with all check ins and lost luggage

SAN
DEN
Good 6.0

Over an hour late. Again. Never flying frontier in the future. This was my first and last experience with them.

SAN
DEN
Mediocre 2.0

The delayed flight and the smell of puke for the entire duration of the flight after an indicidual puked before leaving the gate.

SAN
DEN
Mediocre 2.0

I had to buy another ticket on American because the delay would have made me miss my connection. I was going to a wedding and would have missed it.

SAN
DEN
Mediocre 3.0

Inexpensive flight

The crew was very rude to me and other passengers. He talked to us like we were children and that he was better than us, and seemed to enjoy doing it. The plane itself was filthy, small, and uncomfortable.

Thu, Nov 30
SAN
DEN
2h 32m
Thu, Dec 7
DEN
SAN
2h 26m
Trip: 8 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Okay 4.6

Flight was delayed 2 1/2 hours then my bag didn't arrive at baggage claim for 45 minutes

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 2.0

They nickle and dime you for everything. Charging for drinks and carry-on luggage? No reclining seats, pathetic tray tables. Never again. I'd rather pay more and have a decent flight.

SAN
DEN
Mediocre 2.0

The flight coming in before we left got there luggage lost and caused us to miss our flight because there was only one person dealing with all check ins and lost luggage

SAN
DEN
Okay 4.0

On time and connection very. Lise to original flight

Seats terrible No wi fi Lousy food selection

Fri, Dec 15
SAN
DEN
2h 22m
Sun, Dec 17
DEN
SAN
2h 28m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jan 6
SAN
DEN
2h 20m
Sun, Jan 7
DEN
SAN
2h 28m
Trip: 2 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Okay 4.0

On time and connection very. Lise to original flight

Seats terrible No wi fi Lousy food selection

SAN
DEN
Good 6.0

Boarding went smoothly. On time departure and arrival.

Pretty uncomfortable seat. They mentioned returning seat to upright position, I never found a way to recline it. Might have bought a wine if there had been a list in my seat pocket...

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 3.0

Inexpensive flight

The crew was very rude to me and other passengers. He talked to us like we were children and that he was better than us, and seemed to enjoy doing it. The plane itself was filthy, small, and uncomfortable.

SAN
DEN
Mediocre 2.0

The change of flights. Had to stay in airport overnight!

Fri, Feb 2
SAN
DEN
2h 20m
Sun, Feb 4
DEN
SAN
2h 28m
Trip: 3 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Okay 4.0

On time and connection very. Lise to original flight

Seats terrible No wi fi Lousy food selection

SAN
DEN
Mediocre 2.0

The delayed flight and the smell of puke for the entire duration of the flight after an indicidual puked before leaving the gate.

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 3.0

Inexpensive flight

The crew was very rude to me and other passengers. He talked to us like we were children and that he was better than us, and seemed to enjoy doing it. The plane itself was filthy, small, and uncomfortable.

SAN
DEN
Mediocre 2.0

I had to buy another ticket on American because the delay would have made me miss my connection. I was going to a wedding and would have missed it.

Thu, Feb 8
SAN
DEN
2h 20m
Sat, Feb 10
DEN
SAN
2h 28m
Trip: 3 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Mediocre 2.0

The delayed flight and the smell of puke for the entire duration of the flight after an indicidual puked before leaving the gate.

SAN
DEN
Good 6.0

Over an hour late. Again. Never flying frontier in the future. This was my first and last experience with them.

SAN
DEN
Mediocre 2.0

They nickle and dime you for everything. Charging for drinks and carry-on luggage? No reclining seats, pathetic tray tables. Never again. I'd rather pay more and have a decent flight.

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 2.0

The flight coming in before we left got there luggage lost and caused us to miss our flight because there was only one person dealing with all check ins and lost luggage

Sat, Mar 3
SAN
DEN
2h 29m
Thu, Mar 8
DEN
SAN
2h 28m
Trip: 6 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Good 6.0

Over an hour late. Again. Never flying frontier in the future. This was my first and last experience with them.

SAN
DEN
Okay 4.0

On time and connection very. Lise to original flight

Seats terrible No wi fi Lousy food selection

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 2.0

Flight crew did try to make up time.

Extremely late. Should of given us free non alcoholic drinks to make up for being so late.

SAN
DEN
Okay 4.6

Flight was delayed 2 1/2 hours then my bag didn't arrive at baggage claim for 45 minutes

Thu, Mar 8
SAN
DEN
2h 29m
Mon, Mar 12
DEN
SAN
2h 28m
Trip: 4 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Mediocre 2.0

The flight coming in before we left got there luggage lost and caused us to miss our flight because there was only one person dealing with all check ins and lost luggage

SAN
DEN
Mediocre 2.0

Flight crew did try to make up time.

Extremely late. Should of given us free non alcoholic drinks to make up for being so late.

SAN
DEN
Okay 4.0

On time and connection very. Lise to original flight

Seats terrible No wi fi Lousy food selection

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 2.0

They nickle and dime you for everything. Charging for drinks and carry-on luggage? No reclining seats, pathetic tray tables. Never again. I'd rather pay more and have a decent flight.

Sat, Apr 28
SAN
DEN
2h 29m
Fri, May 4
DEN
SAN
2h 22m
Trip: 7 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Mediocre 2.0

The delayed flight and the smell of puke for the entire duration of the flight after an indicidual puked before leaving the gate.

SAN
DEN
Good 6.0

Boarding went smoothly. On time departure and arrival.

Pretty uncomfortable seat. They mentioned returning seat to upright position, I never found a way to recline it. Might have bought a wine if there had been a list in my seat pocket...

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 2.0

They nickle and dime you for everything. Charging for drinks and carry-on luggage? No reclining seats, pathetic tray tables. Never again. I'd rather pay more and have a decent flight.

SAN
DEN
Mediocre 2.0

The change of flights. Had to stay in airport overnight!

Fri, May 4
SAN
DEN
2h 24m
Sun, May 6
DEN
SAN
2h 22m
Trip: 3 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Mediocre 2.0

The flight coming in before we left got there luggage lost and caused us to miss our flight because there was only one person dealing with all check ins and lost luggage

SAN
DEN
Mediocre 3.0

Inexpensive flight

The crew was very rude to me and other passengers. He talked to us like we were children and that he was better than us, and seemed to enjoy doing it. The plane itself was filthy, small, and uncomfortable.

SAN
DEN
Mediocre 2.0

I didn't die.

Tiny seats, no accommodations, but at least I didn't die.

SAN
DEN
Mediocre 2.0

The change of flights. Had to stay in airport overnight!

SAN
DEN
Mediocre 2.0

Flight crew did try to make up time.

Extremely late. Should of given us free non alcoholic drinks to make up for being so late.

Thu, May 17
SAN
DEN
2h 26m
Sun, May 20
DEN
SAN
2h 22m
Trip: 4 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 357 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAN
DEN
Okay 4.6

Flight was delayed 2 1/2 hours then my bag didn't arrive at baggage claim for 45 minutes

SAN
DEN
Okay 4.0

On time and connection very. Lise to original flight

Seats terrible No wi fi Lousy food selection

SAN
DEN
Mediocre 2.0

Flight crew did try to make up time.

Extremely late. Should of given us free non alcoholic drinks to make up for being so late.

SAN
DEN
Mediocre 2.0

The flight coming in before we left got there luggage lost and caused us to miss our flight because there was only one person dealing with all check ins and lost luggage

SAN
DEN
Mediocre 2.0

They nickle and dime you for everything. Charging for drinks and carry-on luggage? No reclining seats, pathetic tray tables. Never again. I'd rather pay more and have a decent flight.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.