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$226+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — SAN
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(American Airlines)

One-way from

$226
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$355
Provider with most accurate pricing for Aspen Pitkin County-San Diego flight deals.
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Provider most trusted by Cheapflights users for Aspen Pitkin County-San Diego flights.
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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. 21% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 27, 2025.

This Delta deal was found by Cheapflights users on 10/26. 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.
Thu 11/612:10 pmASE - SAN
1 stop4h 09mDelta
Mon 11/106:35 amSAN - ASE
1 stop4h 47mDelta
Deal found 10/26$309
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/31:42 pmASE - SAN
2 stops7h 10mUnited Airlines
Mon 12/88:45 amSAN - ASE
1 stop6h 46mUnited Airlines
Deal found 10/27$324
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Thu 11/63:34 pmASE - SAN
2 stops9h 10mUnited Airlines
Mon 11/109:00 amSAN - ASE
1 stop4h 36mUnited Airlines
Deal found 10/27$384
This Delta deal was found by Cheapflights users on 10/26. 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.
Wed 10/2912:10 pmASE - SAN
1 stop4h 09mDelta
Mon 11/310:00 amSAN - ASE
1 stop6h 52mDelta
Deal found 10/26$409
This United Airlines deal was found by Cheapflights users on 10/26. 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 10/291:40 pmASE - SAN
1 stop7h 12mUnited Airlines
Mon 11/311:02 amSAN - ASE
2 stops6h 26mUnited Airlines
Deal found 10/26$414
This American Airlines deal was found by Cheapflights users on 10/25. 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 11/112:15 pmASE - SAN
1 stop6h 49mAmerican Airlines
Tue 11/49:42 amSAN - ASE
1 stop8h 49mAmerican Airlines
Deal found 10/25$419
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/261:40 pmASE - SAN
1 stop7h 12mUnited Airlines
Sat 11/294:13 pmSAN - ASE
1 stop4h 55mUnited Airlines
Deal found 10/27$443
This United Airlines deal was found by Cheapflights users on 10/25. 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 10/252:00 pmASE - SAN
2 stops7h 49mUnited Airlines
Mon 10/276:15 amSAN - ASE
1 stop5h 21mUnited Airlines
Deal found 10/25$474

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 October 27, 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

Wed 1/28

1:09 pm-7:12 pm

1 stop7h 03m

San Diego

Sat 1/31

9:21 am-7:04 pm

1 stop8h 43m

$249

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Thu 11/6

12:10 pm-3:19 pm

1 stop4h 09m

San Diego

Mon 11/10

6:35 am-12:22 pm

1 stop4h 47m

$309

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Wed 12/3

2:42 pm-7:52 pm

1 stop6h 10m

San Diego

Mon 12/8

6:30 am-2:26 pm

1 stop6h 56m

$319

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Thu 11/6

12:10 pm-3:19 pm

1 stop4h 09m

San Diego

Sun 11/9

6:35 am-12:22 pm

1 stop4h 47m

$319

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Thu 11/6

3:34 pm-11:44 pm

2 stops9h 10m

San Diego

Mon 11/10

11:20 am-4:31 pm

1 stop4h 11m

$384

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Thu 12/11

12:17 pm-3:23 pm

1 stop4h 06m

San Diego

Mon 12/15

6:20 am-12:38 pm

1 stop5h 18m

$384

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Wed 11/26

1:40 pm-7:52 pm

1 stop7h 12m

San Diego

Sat 11/29

4:13 pm-10:08 pm

1 stop4h 55m

$443

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Thu 4/9

5:00 pm-11:44 pm

2 stops7h 44m

San Diego

Sun 4/12

10:45 am-3:57 pm

1 stop4h 12m

$474

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Wed 4/15

12:00 pm-3:19 pm

1 stop4h 19m

$226

AspenSan Diego

ASE - SAN

ASESAN

Aspen Pitkin County

Sat 2/7

12:12 pm-2:57 pm

1 stop3h 45m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 17 results
1
2

Compare providers for flights from Aspen to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Aspen to San Diego in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Aspen-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Aspen-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Aspen-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Aspen-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Aspen-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, November is the cheapest month in which you can book a flight from Aspen to San Diego (average of $66). Flying from Aspen to San Diego in June is currently the most expensive (average of $228). 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 October 27, 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 October 27, 2025.
Peruse reviews from past customers who have flown with United 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.
United Airlines
7.4
Good
8,997 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.
United Airlines
7.4
Good
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.

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.

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

    Airlines like American Airlines, Delta, and United Airlines fly from Aspen to San Diego in about 4h 09m. The time it takes to get you to your destination can typically vary by up to 2h 54m. Airlines will cover a distance of 730 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Aspen to San Diego round-trip?

    Flying on United Airlines is currently your cheapest option to San Diego, with prices starting at $258. United Airlines is priced at 42% 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 Delta, with whom users have recently found tickets for as low as $226. However, be on the lookout for offers from American Airlines and United Airlines, 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, November is the cheapest month in which you can book a flight from Aspen to San Diego (average of $66). Flying from Aspen to San Diego in June is currently the most expensive (average of $228). 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
La Mesa
Poway
Lemon Grove
Imperial Beach
National City

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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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$487FlexibilityNo cancel feeOn-time69%

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