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

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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — SAN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Aspen to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Aspen (ASE) to San Diego (SAN). 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 29, 2025.

Round-trip from

$294
(American Airlines)

One-way from

$216
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$491
From Aspen Pitkin County to San Diego
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One-way flight from Aspen Pitkin County to San Diego
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Highest demand for flights based on searches. 25% potential increase in price ($160 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Aspen to San Diego

Cheapest flights from Aspen to San Diego
Explore the most affordable flight options available from Aspen to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 10/178:00 amASE - SAN
1 stop8h 48mAmerican Airlines
Mon 10/2012:28 pmSAN - ASE
1 stop7h 03mAmerican Airlines
Deal found 7/29$294
This United Airlines deal was found by Cheapflights users on 7/28. 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 10/176:15 pmASE - SAN
1 stop5h 00mUnited Airlines
Mon 10/206:00 pmSAN - ASE
2 stops23h 26mUnited Airlines
Deal found 7/28$448

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aspen to San Diego 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 29, 2025.
Use the filters below to find and compare flights from Aspen to San Diego that are best for you.

Fly from

Aspen

Fly to

San Diego

Route

Depart

Return

Price

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Fri 10/17

8:00 am-3:48 pm

1 stop8h 48m

San Diego

Mon 10/20

12:28 pm-8:31 pm

1 stop7h 03m

$294

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Fri 10/17

6:15 pm-10:15 pm

1 stop5h 00m

San Diego

Mon 10/20

6:00 pm-6:26 pm

2 stops23h 26m

$448

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Sat 8/23

4:53 pm-10:30 pm

1 stop6h 37m

$216

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Sat 8/23

8:45 am-8:48 pm

2 stops13h 03m

$274

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Thu 8/7

12:05 pm-3:19 pm

1 stop4h 14m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Aspen to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Aspen 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 Aspen to San Diego

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

Currently, August is the cheapest month in which you can book a flight from Aspen to San Diego (average of $286). Flying from Aspen to San Diego in March is currently the most expensive (average of $366). 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 ASE to SAN?

Find hourly flight availability from Aspen to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

One of the essential ways to save on airfare from Aspen to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 12% on airfare.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated July 29, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Aspen to San Diego to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,977 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Aspen to San Diego. 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 Aspen to San Diego round-trip?

    Flying on American Airlines is currently your cheapest option to San Diego, with prices starting at $294. Another option worth looking into is United Airlines, starting at $448 round trip. American Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Aspen to San Diego one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $216. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Aspen to San Diego for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Aspen to San Diego 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 Aspen to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Aspen to San Diego (average of $286). Flying from Aspen to San Diego in March is currently the most expensive (average of $366). 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
El Cajon
Chula Vista
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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Top airline flying from Aspen to San Diego

Discover the top airline that operate flights from Aspen to San Diego. 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$338Average$491FlexibilityNo cancel feeOn-time69%

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