Cheap Flights from San Diego to Colorado from $72 Return

Flight deals from San Diego to Colorado

Looking for cheap tickets from San Diego to Colorado, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Denver.$36 per passenger.Departing Wed, 28 Jan.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from San Diego International on Wed, 28 Jan, arriving in Denver International.Price includes taxes and charges.From $36, select.

Colorado Springs.$160 per passenger.Departing Sat, 17 Jan.One-way flight with United.Outbound indirect flight with United, departs from San Diego International on Sat, 17 Jan, arriving in Colorado Springs Peterson Field.Price includes taxes and charges.From $160, select.

Vail.$179 per passenger.Departing Tue, 13 Jan.One-way flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Tue, 13 Jan, arriving in Vail Eagle County.Price includes taxes and charges.From $179, select.

Aspen.$180 per passenger.Departing Mon, 19 Jan.One-way flight with United.Outbound indirect flight with United, departs from San Diego International on Mon, 19 Jan, arriving in Aspen.Price includes taxes and charges.From $180, select.

Montrose.$195 per passenger.Departing Tue, 9 Dec.One-way flight with United.Outbound indirect flight with United, departs from San Diego International on Tue, 9 Dec, arriving in Montrose.Price includes taxes and charges.From $195, select.

Grand Junction.$384 per passenger.Departing Fri, 19 Dec.One-way flight with United.Outbound indirect flight with United, departs from San Diego International on Fri, 19 Dec, arriving in Grand Junction.Price includes taxes and charges.From $384, select.

Durango.$512 per passenger.Departing Sat, 20 Dec.One-way flight with United.Outbound indirect flight with United, departs from San Diego International on Sat, 20 Dec, arriving in Durango La Plata.Price includes taxes and charges.From $512, select.

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Flying from San Diego to Colorado

Arm yourself with these facts on the fly.

Cheapest flight found	$36
Cheapest month to fly	January
Average flight time	2 hrs, 30 mins
Cheapest airport to fly from	San Diego International
Most popular airline	Southwest Airlines

How to find cheap flights from San Diego to Colorado

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from San Diego to Colorado. Other savvy travellers recently found return flights from $72 and one-way tickets from $36 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from San Diego International into Denver International

At the moment, the lowest priced flight tickets to Colorado are from San Diego International Airport to Denver International Airport.

Fly in January

We crunched the flight calendar and found the cheapest time to fly from San Diego to Colorado is currently January.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from San Diego to anywhere you choose in Colorado.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from San Diego to Colorado go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Colorado to Colorado flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average San Diego to Colorado flight price?

We looked at all of the upcoming return flights from San Diego to Colorado we could find over the next 12 months. It looks like $72 is the best price. This is good, compared to the average Colorado ticket price of $329.

What is the cheapest month to fly from San Diego to Colorado?

The cheapest month to fly from San Diego to Colorado Springs Peterson Field Airport is usually January. The cheapest month to fly from San Diego to Montrose Airport is usually January. The cheapest month to fly from San Diego to Aspen Airport is usually January. And the cheapest month to fly from San Diego to Gunnison Airport is usually August.

Which upcoming date is cheapest to fly from San Diego to Colorado on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to Colorado on Wednesday, 14 January 2026.

Are there any direct flights from San Diego to Colorado?

San Diego International Airport offers direct flights to Colorado.

If I'm flying from San Diego, where in Colorado is cheapest to fly into?

If you're flying from San Diego, the cheapest city in Colorado to fly into is Denver. The cheapest airport serving Denver at the moment is Denver International.