SAN - ASE

$216 Find Cheap Flights from San Diego to Aspen

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Aspen departing on 7/30. 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 Aspen

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

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Aspen 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 San Diego to Aspen

Mon, Aug 4 - Wed, Aug 13
Delta Logo
9:59 am - 5:51 pmSAN-ASE
6h 52m1 stop
Delta Logo
12:05 pm - 3:19 pmASE-SAN
4h 14m1 stop
$229Delta
Find Deal
Sat, Sep 13 - Wed, Sep 17
American Airlines Logo
6:15 am - 4:10 pmSAN-ASE
8h 55m1 stop
American Airlines Logo
10:24 am - 7:24 pmASE-SAN
10h 00m2 stops
$234American Airlines
Find Deal
Wed, Aug 6 - Wed, Aug 13
Delta Logo
9:59 am - 5:51 pmSAN-ASE
6h 52m1 stop
Delta Logo
12:05 pm - 3:19 pmASE-SAN
4h 14m1 stop
$239Delta
Find Deal
Fri, Sep 5 - Mon, Sep 8
Delta Logo
10:00 am - 5:51 pmSAN-ASE
6h 51m1 stop
Delta Logo
12:05 pm - 6:05 pmASE-SAN
7h 00m1 stop
$249Delta
Find Deal
Fri, Sep 5 - Mon, Sep 8
United Airlines Logo
12:52 pm - 6:19 pmSAN-ASE
4h 27m1 stop
United Airlines Logo
6:15 pm - 10:14 pmASE-SAN
4h 59m1 stop
$299United Airlines
Find Deal
Fri, Sep 5 - Mon, Sep 8
United Airlines Logo
10:54 am - 7:43 pmSAN-ASE
7h 49m2 stops
United Airlines Logo
6:15 pm - 10:14 pmASE-SAN
4h 59m1 stop
$304United Airlines
Find Deal
Thu, Jul 24 - Mon, Jul 28
United Airlines Logo
10:54 am - 6:22 pmSAN-ASE
6h 28m2 stops
United Airlines Logo
7:06 pm - 11:44 pmASE-SAN
5h 38m1 stop
$309United Airlines
Find Deal
Sat, Aug 2 - Tue, Aug 5
United Airlines Logo
4:10 pm - 9:19 pmSAN-ASE
4h 09m1 stop
United Airlines Logo
6:15 pm - 10:14 pmASE-SAN
4h 59m1 stop
$318United Airlines
Find Deal
Fri, Oct 10 - Thu, Oct 16
American Airlines Logo
10:45 am - 8:31 pmSAN-ASE
8h 46m1 stop
American Airlines Logo
8:00 am - 3:48 pmASE-SAN
8h 48m1 stop
$324American Airlines
Find Deal
Wed, Aug 6 - Wed, Aug 13
Delta Logo
9:59 am - 5:51 pmSAN-ASE
6h 52m1 stop
Delta Logo
12:05 pm - 3:19 pmASE-SAN
4h 14m1 stop
$329Delta
Find Deal
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KAYAK's insights & trends for San Diego to Aspen flights

Get data-powered insights and trends into flights from San Diego to Aspen 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 San Diego to Aspen?

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

Your flight ticket price will generally be cheaper if you fly to Aspen on a Friday and more expensive on a Monday. On your return trip to San Diego, you should consider flying back on a Friday, and avoid Sundays for better deals.

What is the cheapest month to fly from San Diego to Aspen?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Aspen, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Aspen is April, where tickets cost $398 (return) on average. On the other hand, the most expensive months are August and October, where the average cost of round-trip tickets is $925 and $718 respectively.

How far in advance should I book a flight from San Diego to Aspen?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Aspen, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Aspen, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonMay
High seasonDecember
Cheapest flight$216
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 17% increase in price.
Flight from San Diego to Aspen

When to book flights from San Diego to Aspen

Are your dates flexible? Find out the best times to travel from San Diego to Aspen 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 San Diego to Aspen

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

    In the last 3 days, the lowest price for a flight from San Diego to Aspen was $216 for a one-way ticket and $229 for a round-trip.

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

    No, a passport isn't needed to fly from San Diego to Aspen. However, local authorities might ask for an official ID.

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

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

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

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

  • Which is the best airline for flights from San Diego to Aspen, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to Aspen are Delta and United Airlines. With an average price for the route of $378 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $532 and an overall rating of 7.4.

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

    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 San Diego to Aspen.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Aspen from San Diego 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 San Diego to Aspen?

    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 Aspen with an airline and back to San Diego with another airline. Booking your flights between San Diego and ASE 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 San Diego to Aspen?

    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 Aspen from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San Diego to Aspen

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Aspen. 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 San Diego to Aspen? 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.
8.0
DeltaOverall score based on 7952 reviews
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
8.5Crew
Airline reviews

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

4.0 OkayMrs., Jul 2025LAX - RDU
Read more Delta reviews

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

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