$205+ Cheap flights from Aspen to San Diego (ASE - SAN)
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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — SAN
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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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
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Best
Last-minute
One-way
Cheapest flights from Aspen to San DiegoExplore 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 26, 2026.
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 26, 2026.
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.
Tue 11/2411:23 am -
1 stop6h 52m
Fri 11/276:20 am -
1 stop6h 16m
Deal found 10/25![United Airlines logo]()
$429
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:23 pm -
1 stop4h 08m
Fri 11/276:15 am -
1 stop6h 27m
Deal found 10/25![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/62:17 pm -
1 stop4h 00m
Tue 11/1012:39 pm -
1 stop4h 48m
Deal found 10/22![United Airlines logo]()
$509
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.
Wed 11/251:30 pm -
2 stops7h 54m
Fri 11/276:20 am -
1 stop6h 16m
Deal found 10/25![United Airlines logo]()
$534
This Delta deal was found by Cheapflights users on 10/22. 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.
Sat 10/2412:04 pm -
1 stop4h 06m
Tue 10/273:00 pm -
1 stop4h 14m
Deal found 10/22![Delta logo]()
$554
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 10/227:30 am -
1 stop7h 47m
Tue 10/2712:20 pm -
1 stop7h 01m
Deal found 10/22![American Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 10/21. 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 10/238:30 am -
1 stop5h 25m
Tue 10/278:45 am -
1 stop4h 52m
Deal found 10/21![United Airlines logo]()
$609
Best flights from Aspen to San DiegoDiscover carefully curated flight deals from Aspen to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Aspen to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:23 pm -
1 stop4h 08m
Fri 11/276:15 am -
1 stop6h 27m
Deal found 10/25![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/62:17 pm -
1 stop4h 00m
Tue 11/1012:39 pm -
1 stop4h 48m
Deal found 10/22![United Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/67:30 am -
2 stops9h 09m
Tue 11/101:05 pm -
2 stops22h 19m
Deal found 10/22![American Airlines logo]()
$826
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.
Wed 11/251:30 pm -
2 stops7h 54m
Fri 11/276:20 am -
1 stop6h 16m
Deal found 10/25![United Airlines logo]()
$534
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.
Tue 11/2411:23 am -
2 stops6h 54m
Fri 11/276:20 am -
2 stops7h 17m
Deal found 10/25![United Airlines logo]()
$618
Last-minute flights from Aspen to San DiegoDiscover last-minute flight deals from Aspen to San Diego. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Aspen to San Diego. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/62:17 pm -
1 stop4h 00m
Tue 11/1012:39 pm -
1 stop4h 48m
Deal found 10/22![United Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/67:30 am -
2 stops9h 09m
Tue 11/101:05 pm -
2 stops22h 19m
Deal found 10/22![American Airlines logo]()
$826
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.
Tue 11/2411:23 am -
1 stop6h 52m
Fri 11/276:20 am -
1 stop6h 16m
Deal found 10/25![United Airlines logo]()
$429
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:23 pm -
1 stop4h 08m
Fri 11/276:15 am -
1 stop6h 27m
Deal found 10/25![Delta logo]()
$449
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.
Wed 11/251:30 pm -
2 stops7h 54m
Fri 11/276:20 am -
1 stop6h 16m
Deal found 10/25![United Airlines logo]()
$534
One-way flights from Aspen to San DiegoSearch for one-way flight options from Aspen to San Diego. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Aspen to San Diego. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/23. 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 2/265:01 pm -
1 stop4h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 1/2512:14 pm -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![American Airlines logo]()
$225
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.
Mon 1/2511:31 am -
2 stops9h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 10/22. 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 1/612:00 pm -
1 stop4h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Delta logo]()
$345
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.
Wed 1/612:20 pm -
1 stop7h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![American Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 10/22. 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 1/61:15 pm -
2 stops7h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 10/22. 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 1/16:23 pm -
1 stop5h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$515
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2511:32 am -
3 stops33h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$685
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/611:32 am -
3 stops47h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$2,854
Find 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 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $429 (United Airlines) |
One-way from | $205 (United Airlines) |
Popular in | January |
Cheapest in | November |
Average price | $368 |
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 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from Aspen to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Fri 2/26
5:01 pm-8:44 pm
1 stop4h 43m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$205
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Mon 1/25
11:31 am-8:08 pm
2 stops9h 37m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$280
Quickest round-trip
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Wed 1/6
12:00 pm-3:20 pm
1 stop4h 20m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$345
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Wed 11/25
12:23 pm-3:31 pm
1 stop4h 08m
San Diego
Fri 11/27
6:15 am-1:42 pm
1 stop6h 27m
$449
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Wed 1/6
1:15 pm-8:08 pm
2 stops7h 53m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$450
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Fri 11/6
2:17 pm-5:17 pm
1 stop4h 00m
San Diego
Tue 11/10
12:39 pm-6:27 pm
1 stop4h 48m
$509
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Fri 1/1
6:23 pm-10:32 pm
1 stop5h 09m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$515
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Wed 11/25
1:30 pm-8:24 pm
2 stops7h 54m
San Diego
Fri 11/27
6:20 am-1:36 pm
1 stop6h 16m
$534
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Tue 11/24
11:23 am-5:17 pm
2 stops6h 54m
San Diego
Fri 11/27
6:20 am-2:37 pm
2 stops7h 17m
$618
AspenSan Diego
ASE Aspen Pitkin County - SAN San Diego
ASESAN
Aspen Pitkin County
Mon 1/25
11:32 am-7:38 pm
3 stops33h 06m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$685
Showing 1-10 of 12 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Aspen-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Aspen-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
ASE-SAN
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
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 26, 2026.
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.
Comfort
7.3
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Comfort
7.3
Food
6.7
Crew
8.1
Boarding
7.7
Overall
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
Lemon Grove
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Aspen and San Diego flights
Browse other Aspen and San Diego flight options. Last updated on October 26, 2026.
Other flights from Aspen
Browse through other flights departing from Aspen. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
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Check out other popular destinations found by fellow travelers in 2026
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Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
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 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$268 | Average$388 | FlexibilityNo cancel fee | On-time69% |