Cheap flights from Aspen to San Diego

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      Compare Aspen to San Diego flight deals

      Find the cheapest month or even day of the year to fly to San Diego

      Book the best San Diego fare with no extra fees

      Flight deals from Aspen to San Diego

      Looking for a cheap last-minute deal or the best round-trip flight from Aspen Airport to San Diego? If you want to travel next month, round-trip fares start from $561. Find the lowest prices on one-way and round-trip tickets right here.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Aspen to San Diego found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Aspen to San Diego

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Aspen to San Diego flights are currently cheapest in February.

      Alternative Aspen to San Diego routes

      Looking for the cheapest, fastest or easiest route from Aspen to San Diego? You could fly into the following airports instead.

      Aspen to San Diego: Flight information

      The things to know before you go.
      Cheapest flight found$387
      Cheapest month to flyOctober

      Finding cheap flights from Aspen to San Diego: Frequently asked questions

      There are 2 airports in San Diego: San Diego International and McClellan – Palomar.
      The best price we found for a round-trip flight from Aspen to San Diego is $387. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Aspen to San Diego. But we found flights with one or more stops from $387.
      There are no flights flying from Aspen to San Diego, as of September 2026.
      The cheapest month to fly from Aspen to San Diego is usually October.
      If you're flying from Aspen Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the center of San Diego. We've found flights to this airport from $387.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Aspen Airport to San Diego on Thursday, October 29, 2026.
      No airlines currently offer direct flights between Aspen Airport and San Diego. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.

      In September, the average temperature is usually around 21°C. September is typically the warmest month in San Diego, when it usually averages around 24°C. You can expect the least rain in July. The coldest month is March, with temperatures averaging 12°C. The rainiest month is March.
      Currently, United offers the cheapest flight tickets to San Diego.

      Traveling from Aspen Pitkin County Airport (ASE) to San Diego: what you need to know

      • The timezone in San Diego is UTC-8. The city is one hour behind Aspen, where Aspen Pitkin County Airport is located.

      • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. That way, you won't have to rush to catch your ASE to San Diego flight.

      • Be prepared for longer lines in popular months such as March. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a smart move.

      • The journey from central Aspen to ASE takes about 20 minutes on public transport. If you ride-share, drive or get a cab, you'll cover the 5 kilometers in 10 minutes or so, depending on traffic.

      • Want an easy start to your trip? Stay near ASE. Whether you're catching an early flight from Aspen Pitkin County Airport to San Diego or want to avoid feeling rushed, these hotels are worth a look:

      • 65% of flights leaving from Aspen Pitkin County Airport reach their destination on time.

      • ASE's address is 233 East Airport Road.

      How to find the cheapest flights from Aspen Pitkin County Airport (ASE) to San Diego

      • The best price we've seen for a one-way Aspen Pitkin County Airport to San Diego flight is $193. The cheapest price for a return flight is $387. Remember fares can change due to demand at the time of booking.

      • To pick up cheap flights from ASE to San Diego, book as early as you can. Airlines typically offer lower fares when flights are first released.

      • If you have flexibility with your travel plans, check out the 'Whole month' search tool. It'll find the lowest price across every month when looking for a Aspen Pitkin County Airport to San Diego ticket.

      • There's no need to check in daily to see if fares have dropped when you create a Price Alert. We'll notify you the moment there's an even bigger deal on cheap flights from ASE to San Diego.

      • Tailor your flights with filters. Pick your ideal arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Aspen Pitkin County Airport to San Diego.

      Airports in San Diego

      San Diego International Airport (SAN)

      • San Diego International Airport (SAN) is around 5 kilometers from central San Diego. If you're grabbing a cab or a ride-share, the drive takes roughly 15 minutes.

      • It'll take around 25 minutes to get there using public transport.

      • If you have a late flight from Aspen Pitkin County Airport to San Diego, few things beat the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and snoozing soon after at one of these hotels near SAN:

      • Reserving your ride from San Diego International Airport around two weeks before your flight from ASE to San Diego can help you lock in the lowest rate.

      • The address for SAN is N Harbor Dr.

      McClellan-Palomar Airport (CLD)

      • Central San Diego is around 48 kilometers from McClellan-Palomar Airport (CLD). Disembark your flight from Aspen Pitkin County Airport to San Diego and then keep a lookout for any airport signs that'll help you get to the city center.

      • Following your ASE to San Diego flight, tuck yourself in at a hotel close to CLD. These are some comfortable options that'll help you sink into relaxation mode:

      • Get the vehicle you prefer, not just what's left over, by securing your ride from CLD before your arrival. You'll also avoid paying extra, especially when demand is high.

      Best time to go to San Diego

      • December is the quietest month for flights from Aspen Pitkin County Airport to San Diego, while July is the most popular. Find the best time to go to San Diego based on whether you prefer a bustling atmosphere or a more laid-back vibe.

      • Lock in a Aspen Pitkin County Airport to San Diego plane ticket with a departure in August if you're eager to visit the city during its warmest month. Expect temperatures to range from 16ºC (61ºF) to 27ºC (81ºF).

      • Look for cheap tickets from ASE to San Diego in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC (46ºF) and 22ºC (72ºF) on average.

      More about San Diego

      Explore more of the United States

      • Los Angeles is just one of the many cities in the United States waiting to be explored after you've experienced San Diego. Around 177 kilometers away to the northwest, well-known attractions include Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

      • If you're ready to explore another great destination in the United States, consider Phoenix, roughly 483 kilometers east of San Diego. Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum are among its highlights.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.