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Aspen

$229+ Cheap flights from San Diego to Aspen (SAN - ASE)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ASE
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Aspen Pitkin County are usually found in April or September, 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 July 3, 2025.

Round-trip from

$234
(United Airlines)

Popular in

August

Cheapest in

April

Average price

$553
From San Diego to Aspen Pitkin County
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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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 July 3, 2025.

This Delta deal was found by Cheapflights users on 7/3. 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 9/309:59 amSAN - ASE
1 stop6h 54mDelta
Tue 10/712:00 pmASE - SAN
1 stop4h 20mDelta
Deal found 7/3$229
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Sat 8/910:49 amSAN - ASE
2 stops6h 33mUnited Airlines
Tue 8/191:15 pmASE - SAN
1 stop5h 14mUnited Airlines
Deal found 7/1$234
This American Airlines deal was found by Cheapflights users on 7/3. 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.
Tue 9/306:15 amSAN - ASE
2 stops8h 55mAmerican Airlines
Tue 10/78:00 amASE - SAN
2 stops12h 45mAmerican Airlines
Deal found 7/3$239

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 July 3, 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

Tue 9/30

9:59 am-5:53 pm

1 stop6h 54m

Aspen Pitkin County

Tue 10/7

12:00 pm-3:20 pm

1 stop4h 20m

$229

San DiegoAspen

SAN - ASE

SANASE

San Diego

Sat 8/9

10:49 am-6:22 pm

2 stops6h 33m

Aspen Pitkin County

Tue 8/19

1:15 pm-5:29 pm

1 stop5h 14m

$234

San DiegoAspen

SAN - ASE

SANASE

San Diego

Tue 9/30

6:15 am-4:10 pm

2 stops8h 55m

Aspen Pitkin County

Tue 10/7

8:00 am-7:45 pm

2 stops12h 45m

$239

San DiegoAspen

SAN - ASE

SANASE

San Diego

Thu 8/7

7:15 am-4:07 pm

1 stop7h 52m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 June 27, 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 $668). 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 July 3, 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 July 3, 2025.
Get a feel of what it's like to fly with 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.
United Airlines
7.4
Good
8,861 reviews

Overall

7.4

Crew

8.1

Entertainment

7.0

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel
United Airlines
7.4
Good
8,861 reviews
United Airlines
7.4
Good
8,861 reviews

Overall

7.4

Crew

8.1

Entertainment

7.0

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,861 reviews

Overall

7.4

Crew

8.1

Entertainment

7.0

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

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.

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

    Our cheapest airline available from San Diego to Aspen is United Airlines. Our recent data shows that you can find tickets from as low as $234 on this airline. An additional option worth looking into is American Airlines, starting at $354. United Airlines is priced at 58% 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 $668). 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 San Diego?

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

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$414FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$358Average$534FlexibilityNo cancel feeOn-time69%

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