HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Aspen

$216+ Cheap flights from San Diego to Aspen (SAN - ASE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ASE
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Aspen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Diego to Aspen Pitkin County are usually found in June or April, booked 22 days in advance, depart on a Friday or Saturday and return on a Tuesday

Cheap flight deals from San Diego to Aspen

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Aspen (ASE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$229
(American Airlines)

One-way from

$216
(Delta)

Popular in

October

Cheapest in

June

Average price

$613
From San Diego to Aspen Pitkin County
Search Deals
One-way flight from San Diego to Aspen Pitkin County
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from San Diego to Aspen

Cheapest flights from San Diego to Aspen
Explore the most affordable flight options available from San Diego to Aspen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:13 amSAN - ASE
1 stop7h 57mAmerican Airlines
Fri 9/194:49 pmASE - SAN
1 stop6h 47mAmerican Airlines
Deal found 8/17$229
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:00 amSAN - ASE
1 stop6h 51mDelta
Sat 9/612:05 pmASE - SAN
1 stop7h 00mDelta
Deal found 8/18$249
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:00 amSAN - ASE
1 stop6h 51mDelta
Mon 9/812:05 pmASE - SAN
1 stop7h 00mDelta
Deal found 8/16$269
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/29:02 amSAN - ASE
1 stop4h 48mUnited Airlines
Sat 9/611:32 amASE - SAN
2 stops7h 51mUnited Airlines
Deal found 8/18$273
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:48 pmSAN - ASE
1 stop7h 02mAmerican Airlines
Tue 12/3012:03 pmASE - SAN
1 stop6h 48mAmerican Airlines
Deal found 8/17$294
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:00 amSAN - ASE
1 stop6h 50mUnited Airlines
Wed 9/178:10 amASE - SAN
1 stop6h 30mUnited Airlines
Deal found 8/17$299
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/52:21 pmSAN - ASE
2 stops5h 58mUnited Airlines
Mon 9/86:15 pmASE - SAN
1 stop4h 59mUnited Airlines
Deal found 8/18$314
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:54 amSAN - ASE
2 stops8h 15mUnited Airlines
Sat 8/3010:30 amASE - SAN
2 stops11h 18mUnited Airlines
Deal found 8/17$319

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Aspen 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, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from San Diego to Aspen that are best for you.

Fly from

San Diego

Fly to

Aspen

Route

Depart

Return

Price

San DiegoAspen

SAN - ASE

SANASE

San Diego

Sat 9/13

7:13 am-4:10 pm

1 stop7h 57m

Aspen Pitkin County

Fri 9/19

4:49 pm-10:36 pm

1 stop6h 47m

$229

San DiegoAspen

SAN - ASE

SANASE

San Diego

Thu 1/8

8:43 am-6:25 pm

1 stop8h 42m

Aspen Pitkin County

Mon 1/12

4:31 pm-9:59 pm

1 stop6h 28m

$229

San DiegoAspen

SAN - ASE

SANASE

San Diego

Tue 9/2

10:00 am-5:51 pm

1 stop6h 51m

Aspen Pitkin County

Sat 9/6

12:05 pm-6:05 pm

1 stop7h 00m

$249

San DiegoAspen

SAN - ASE

SANASE

San Diego

Fri 9/5

10:00 am-5:51 pm

1 stop6h 51m

Aspen Pitkin County

Mon 9/8

12:05 pm-6:05 pm

1 stop7h 00m

$269

San DiegoAspen

SAN - ASE

SANASE

San Diego

Tue 9/2

9:02 am-2:50 pm

1 stop4h 48m

Aspen Pitkin County

Sat 9/6

11:32 am-6:23 pm

2 stops7h 51m

$273

San DiegoAspen

SAN - ASE

SANASE

San Diego

Wed 12/24

12:48 pm-8:50 pm

1 stop7h 02m

Aspen Pitkin County

Tue 12/30

12:03 pm-5:51 pm

1 stop6h 48m

$294

San DiegoAspen

SAN - ASE

SANASE

San Diego

Wed 9/10

7:00 am-2:50 pm

1 stop6h 50m

Aspen Pitkin County

Wed 9/17

8:10 am-1:40 pm

1 stop6h 30m

$299

San DiegoAspen

SAN - ASE

SANASE

San Diego

Sat 10/11

10:00 am-5:52 pm

1 stop6h 52m

Aspen Pitkin County

Wed 10/15

12:10 pm-3:19 pm

1 stop4h 09m

$304

San DiegoAspen

SAN - ASE

SANASE

San Diego

Fri 9/5

2:21 pm-9:19 pm

2 stops5h 58m

Aspen Pitkin County

Mon 9/8

2:40 pm-8:25 pm

1 stop6h 45m

$314

San DiegoAspen

SAN - ASE

SANASE

San Diego

Sun 2/1

6:15 am-2:03 pm

1 stop6h 48m

$216

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 18 results
1
2

Best time to book a flight from San Diego to Aspen

Have a flexible travel schedule? Discover the best time to fly to Aspen from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Aspen

How far ahead should I book a flight from San Diego to Aspen?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Aspen. Price data was last updated on August 8, 2025.

The best time to book flights from San Diego to Aspen is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Diego to Aspen?

Currently, November is the cheapest month in which you can book a flight from San Diego to Aspen (average of $448). Flying from San Diego to Aspen in December is currently the most expensive (average of $665). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to ASE?

Find hourly flight availability from San Diego to Aspen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 17% on flights from San Diego to Aspen by exploring options for tickets in the morning.

How much does it cost to fly round-trip from San Diego to Aspen?

Reviews of airlines servicing Aspen

Get insights into the airlines that provide service to Aspen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Aspen. Reviews last updated August 18, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from San Diego to Aspen by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know
United Airlines
7.4
Good
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Related info for your journey

Find useful and relevant information for your journey from San Diego to Aspen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Diego to Aspen?

    For as low as $273, American Airlines can have you in Aspen from San Diego in 4h 48m. San Diego and Aspen are separated by a distance of 730 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from San Diego to Aspen round-trip?

    Our cheapest airline available from San Diego to Aspen is Delta. Our recent data shows that you can find tickets from as low as $228 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $288 and $328 round-trip. Delta is priced at 57% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from San Diego to Aspen that include hotel bookings?

    Yes. In addition to deals on San Diego to Aspen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Aspen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Aspen.

  • Can I find deals for business class flights from San Diego to Aspen?

    Yes. Cheapflights offers flight deals from San Diego to Aspen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Aspen?

    Currently, November is the cheapest month in which you can book a flight from San Diego to Aspen (average of $448). Flying from San Diego to Aspen in December is currently the most expensive (average of $665). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Aspen?

Book flights to Aspen if you plan to visit one of these locations
Snowmass Village
Carbondale
Buena Vista
Snowmass

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Aspen

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Denver flights
San Francisco to Denver flights
Ontario to Denver flights
Santa Ana to Denver flights
San Jose to Denver flights
San Diego to Denver flights
Las Vegas to Denver flights
Sacramento to Denver flights
Oakland to Denver flights
Burbank to Denver flights
Reno to Denver flights
Santa Barbara to Denver flights
Fresno to Denver flights
Long Beach to Denver flights
Los Angeles to Aspen flights
Los Angeles to Colorado Springs flights
Redding to Denver flights
Palm Springs to Denver flights
San Luis Obispo to Denver flights
Los Angeles to Durango flights
Medford to Denver flights
San Francisco to Aspen flights
San Francisco to Durango flights
San Francisco to Grand Junction flights
San Francisco to Montrose flights
Ontario to Colorado Springs flights
Bakersfield to Denver flights
Arcata to Denver flights
Los Angeles to Vail flights
Los Angeles to Grand Junction flights
San Jose to Grand Junction flights
Oakland to Grand Junction flights
Los Angeles to Montrose flights
Ontario to Vail flights
San Diego to Colorado Springs flights
San Francisco to Colorado Springs flights
San Francisco to Vail flights
San Jose to Durango flights
Monterey to Denver flights
Burbank to Colorado Springs flights
Santa Ana to Grand Junction flights
Santa Rosa to Denver flights
Ontario to Aspen flights
San Jose to Colorado Springs flights
San Jose to Montrose flights
Santa Ana to Colorado Springs flights
Las Vegas to Colorado Springs flights
Los Angeles to Hayden flights
Fresno to Colorado Springs flights

Top 3 airlines flying from San Diego to Aspen

Discover the top 3 airlines that operate flights from San Diego to Aspen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$363FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$398FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$328Average$532FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.