$216 Cheap Flights from Aspen (ASE) to San Diego (SAN)

View $216 flight on Mon, Nov 24, 2025Opens in a new window

Popular airlines from Aspen/Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN)

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Cheap Flights from Aspen to San Diego (ASE-SAN)

Prices were available within the past 7 days and start at $216 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Sep 11 - Sat, Sep 13
ASE
Aspen
SAN
San Diego
$229 Roundtrip, found 12 hours ago
$229
Roundtrip
found 12 hours ago
Select Delta flight, departing Thu, Sep 11 from Aspen to San Diego, returning Sat, Sep 13, priced at $229 found 12 hours ago
United
Thu, Sep 25 - Sat, Sep 27
ASE
Aspen
SAN
San Diego
$234 Roundtrip, found 4 days ago
$234
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 25 from Aspen to San Diego, returning Sat, Sep 27, priced at $234 found 4 days ago
Delta
Thu, Sep 11 - Sun, Sep 14
ASE
Aspen
SAN
San Diego
$239 Roundtrip, found 12 hours ago
$239
Roundtrip
found 12 hours ago
Select Delta flight, departing Thu, Sep 11 from Aspen to San Diego, returning Sun, Sep 14, priced at $239 found 12 hours ago
Delta
Mon, Sep 8 - Sun, Sep 14
ASE
Aspen
SAN
San Diego
$249 Roundtrip, found 12 hours ago
$249
Roundtrip
found 12 hours ago
Select Delta flight, departing Mon, Sep 8 from Aspen to San Diego, returning Sun, Sep 14, priced at $249 found 12 hours ago
United
Thu, Sep 11 - Mon, Sep 15
ASE
Aspen
SAN
San Diego
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 11 from Aspen to San Diego, returning Mon, Sep 15, priced at $253 found 1 day ago
United
Thu, Sep 25 - Sat, Sep 27
ASE
Aspen
SAN
San Diego
$259 Roundtrip, found 4 days ago
$259
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 25 from Aspen to San Diego, returning Sat, Sep 27, priced at $259 found 4 days ago
United
Thu, Sep 11 - Tue, Sep 16
ASE
Aspen
SAN
San Diego
$264 Roundtrip, found 6 days ago
$264
Roundtrip
found 6 days ago
Select United flight, departing Thu, Sep 11 from Aspen to San Diego, returning Tue, Sep 16, priced at $264 found 6 days ago
United
Thu, Sep 11 - Mon, Sep 15
ASE
Aspen
SAN
San Diego
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 11 from Aspen to San Diego, returning Mon, Sep 15, priced at $268 found 1 day ago
United
Thu, Sep 11 - Tue, Sep 16
ASE
Aspen
SAN
San Diego
$268 Roundtrip, found 6 days ago
$268
Roundtrip
found 6 days ago
Select United flight, departing Thu, Sep 11 from Aspen to San Diego, returning Tue, Sep 16, priced at $268 found 6 days ago
American Airlines
Thu, Sep 11 - Mon, Sep 15
ASE
Aspen
SAN
San Diego
$294 Roundtrip, found 1 day ago
$294
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 11 from Aspen to San Diego, returning Mon, Sep 15, priced at $294 found 1 day ago

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Diego Intl. SAN. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $478
SAN
San Diego Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $478
Flights from Aspen (ASE) to San Diego (SAN)
Origin airport
Pitkin County
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$228
Distance
730 mi

Aspen to San Diego Flights

The cheapest times to fly from Aspen to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Aspen to San Diego are during the month of September. You can find some of the cheapest flights from Aspen to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Aspen to San Diego

Sunday is one of the best days to book for cheap flights from Aspen to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Aspen to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Aspen to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $216 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Aspen to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Aspen to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN) cost?
Get a cheap one-way flight from $216 or cheap return flight from $229 from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN)?
Planning your trip for September may help you find better deals, as it's the cheapest month for flights between ASE and SAN. You'll typically find the lowest fares during the off-season.
Which airlines fly direct from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN)?
You can't fly nonstop from Aspen, CO (ASE-Pitkin County) to San Diego Intl. Airport (SAN). However, you can seamlessly travel to San Diego without any layovers by departing from Eagle County Regional Airport (EGE).
What is the cheapest airline that flies from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN)?
To find the cheapest airline flying from ASE to SAN, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN)?
You'll have to hop on a flight with a layover if you're traveling from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from ASE to SAN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN)?
To avoid potential delays on the Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN) route, travel before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN) last-minute?
Last-minute bookings from ASE to SAN are generally more expensive. To secure the best rates, start looking for flights well ahead of time. That said, if you're flexible with your travel dates, you may find a cheap ticket right before your trip.
Is it cheaper to book an ASE to SAN flight and hotel package?
Compared with arranging flights and hotels separately, booking an ASE to SAN flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the stress out of planning your trip. Simply secure your flights and choose from our wide range of hotels, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Pitkin County Airport (ASE) to San Diego Intl. Airport (SAN)?
Typically, you can modify or cancel your ASE to SAN flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need further details, head to our Customer Service portal.

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*Available to One Key members.