ASE - SAN

$249 Find Cheap Flights from Aspen to San Diego

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Aspen to San Diego departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Aspen to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Aspen to San Diego, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Aspen to San Diego (ASE-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Aspen to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Aspen to San Diego

Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:15 pm - 10:14 pmASE-SAN
4h 59m1 stop
United Airlines Logo
1:58 pm - 7:43 pmSAN-ASE
4h 45m1 stop
$249United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:15 pm - 10:14 pmASE-SAN
4h 59m1 stop
United Airlines Logo
2:21 pm - 9:19 pmSAN-ASE
5h 58m2 stops
$254United Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
American Airlines Logo
8:00 am - 3:48 pmASE-SAN
8h 48m1 stop
American Airlines Logo
10:44 am - 8:31 pmSAN-ASE
8h 47m1 stop
$294American Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
American Airlines Logo
8:00 am - 3:48 pmASE-SAN
8h 48m1 stop
American Airlines Logo
9:59 am - 8:31 pmSAN-ASE
9h 32m1 stop
$330American Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
American Airlines Logo
8:00 am - 3:48 pmASE-SAN
8h 48m1 stop
American Airlines Logo
9:59 am - 8:31 pmSAN-ASE
9h 32m1 stop
$360American Airlines
Find Deal
Wed, Aug 27 - Thu, Sep 11
United Airlines Logo
8:10 am - 1:40 pmASE-SAN
6h 30m1 stop
United Airlines Logo
6:32 pm - 9:27 amSAN-ASE
13h 55m1 stop
$377United Airlines
Find Deal
Wed, Aug 27 - Thu, Sep 11
United Airlines Logo
1:15 pm - 5:29 pmASE-SAN
5h 14m1 stop
United Airlines Logo
5:56 pm - 9:27 amSAN-ASE
14h 31m2 stops
$382United Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
United Airlines Logo
1:00 pm - 9:12 amASE-SAN
21h 12m1 stop
United Airlines Logo
6:00 pm - 12:36 pmSAN-ASE
17h 36m2 stops
$435United Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
American Airlines Logo
8:00 am - 3:48 pmASE-SAN
8h 48m1 stop
American Airlines Logo
6:15 am - 8:31 pmSAN-ASE
13h 16m2 stops
$440American Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
3:23 pm - 12:15 amASE-SAN
9h 52m2 stops
United Airlines Logo
2:21 pm - 9:19 pmSAN-ASE
5h 58m2 stops
$450United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Aspen to San Diego flights

Get data-powered insights and trends into flights from Aspen to San Diego to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Aspen to San Diego?

The average price of all round-trip flights from Aspen to San Diego clicked on KAYAK for each day over the last 12 months.

For Aspen to San Diego, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from San Diego back to Aspen, the best deals are generally found on Friday, with Monday being the most expensive.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$249
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Aspen to San Diego

When to book flights from Aspen to San Diego

Are your dates flexible? Find out the best times to travel from Aspen to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Aspen to San Diego

  • What is the cheapest flight from Aspen to San Diego?

    In the last 3 days, the lowest price for a flight from Aspen to San Diego was $251 for a one-way ticket and $249 for a round-trip.

  • Do I need a passport to fly between Aspen and San Diego?

    No

  • Which aircraft models fly most regularly from Aspen to San Diego?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Aspen to San Diego?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Aspen and San Diego, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Aspen to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Aspen to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Aspen to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Aspen is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Aspen to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Aspen with another airline. Booking your flights between Aspen and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Aspen to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Aspen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Aspen to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Aspen to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Aspen to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8904 reviews
8.1Crew
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

2.0 MediocreNatalie, Jul 2025ASE - DEN
Read more United Airlines reviews

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

A bit rush for transit. Food and entertainment are not available

Everything you need to know for your flight from Aspen to San Diego

Information on your arrival and departure airports

Aspen (ASE)
San Diego (SAN)

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