SAN - ASE

$359 Find Cheap Flights from San Diego to Aspen

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Aspen departing on 6/6. 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.
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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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Cheap Flights from San Diego to Aspen

 
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.

Recent round-trip flight deals from San Diego to Aspen

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Diego to Aspen.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
11:31 am - 4:49 pmSAN-ASE
4h 18m1 stop
United Airlines Logo
6:15 pm - 10:24 pmASE-SAN
5h 09m1 stop
$359United Airlines
Find Deal
Fri, Jun 6 - Sun, Jun 8
United Airlines Logo
7:00 am - 2:39 pmSAN-ASE
6h 39m1 stop
United Airlines Logo
2:55 pm - 9:14 pmASE-SAN
7h 19m1 stop
$360United Airlines
Find Deal
Mon, Jun 2 - Mon, Jun 9
United Airlines Logo
11:15 am - 8:12 pmSAN-ASE
7h 57m2 stops
United Airlines Logo
6:15 pm - 10:24 pmASE-SAN
5h 09m1 stop
$364United Airlines
Find Deal
Fri, Jun 6 - Sun, Jun 8
United Airlines Logo
10:43 am - 7:31 pmSAN-ASE
7h 48m1 stop
United Airlines Logo
2:55 pm - 11:46 pmASE-SAN
9h 51m2 stops
$366United Airlines
Find Deal
Mon, Jun 2 - Mon, Jun 9
United Airlines Logo
10:54 am - 7:43 pmSAN-ASE
7h 49m2 stops
United Airlines Logo
2:50 pm - 11:44 pmASE-SAN
9h 54m2 stops
$369United Airlines
Find Deal
Wed, Jul 16 - Tue, Jul 22
United Airlines Logo
11:15 am - 8:12 pmSAN-ASE
7h 57m2 stops
United Airlines Logo
11:35 am - 7:47 pmASE-SAN
9h 12m2 stops
$371United Airlines
Find Deal
Mon, Jun 2 - Mon, Jun 9
Delta Logo
10:00 am - 5:51 pmSAN-ASE
6h 51m1 stop
Delta Logo
12:05 pm - 3:19 pmASE-SAN
4h 14m1 stop
$409Delta
Find Deal
Wed, Jul 2 - Mon, Jul 7
American Airlines Logo
6:25 am - 6:04 pmSAN-ASE
10h 39m2 stops
American Airlines Logo
2:31 pm - 9:48 pmASE-SAN
8h 17m2 stops
$982American Airlines
Find Deal
Fri, Jun 6 - Sun, Jun 8
American Airlines Logo
6:25 am - 6:04 pmSAN-ASE
10h 39m2 stops
American Airlines Logo
2:31 pm - 9:48 pmASE-SAN
8h 17m2 stops
$1,248American Airlines
Find Deal
Fri, Jun 27 - Sun, Jun 29
American Airlines Logo
6:25 am - 6:04 pmSAN-ASE
10h 39m2 stops
American Airlines Logo
4:35 pm - 9:40 pmASE-SAN
6h 05m1 stop
$1,400American Airlines
Find Deal
Wed, Jul 2 - Sun, Jul 6
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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 $718 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonMay
High seasonJanuary
Cheapest flight$359
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 20% lower on average.
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 $359 for a round-trip ticket.

  • 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Diego and Aspen, with SkyTeam 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 $538 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.

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 7936 reviews
7.9Comfort
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
Airline reviews

Delta flight was on time, seats were comfortable, and crew was nice.

8.0 ExcellentAnonymous, Apr 2025LAX - DEN
Read more Delta reviews

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

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.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

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!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

One of the best flights I’ve had. So smooth.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

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

Information on your arrival and departure airports

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