SAN - ASE

$329 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 7/16. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$329
Typical prices: $716-$408
Delta
Thu 7/16Tue 7/21
SAN - ASE • 1 stop
Cheapest one-way
$357
Typical prices: $332-$387
American Airlines
Sun 6/21
SAN - ASE • 1 stop
Top airlines
Cheapest • from $329 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Diego and Aspen. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $453 (round-trip)
Shortest trip • 4h 37m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Aspen!
Flight Deals
Booking Insights
Flight 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

Thu, Jul 16 - Tue, Jul 21
Delta Logo
3:00 pm - 8:26 pm
SAN
-
ASE
4h 26m
1 stop
Delta Logo
12:03 pm - 3:09 pm
ASE
-
SAN
4h 06m
1 stop
$329Delta
Tue, Jul 14 - Sat, Jul 18
United Airlines Logo
1:39 pm - 7:55 pm
SAN
-
ASE
5h 16m
1 stop
United Airlines Logo
7:15 pm - 11:54 pm
ASE
-
SAN
5h 39m
1 stop
$354United Airlines
Wed, May 27 - Fri, May 29
United Airlines Logo
8:45 am - 2:44 pm
SAN
-
ASE
4h 59m
1 stop
United Airlines Logo
7:15 pm - 11:54 pm
ASE
-
SAN
5h 39m
1 stop
$359United Airlines
Wed, May 27 - Fri, May 29
United Airlines Logo
10:49 am - 6:29 pm
SAN
-
ASE
6h 40m
2 stops
United Airlines Logo
6:12 pm - 10:25 pm
ASE
-
SAN
5h 13m
1 stop
$364United Airlines
Fri, Jul 17 - Tue, Jul 21
Delta Logo
3:00 pm - 8:26 pm
SAN
-
ASE
4h 26m
1 stop
Delta Logo
12:03 pm - 3:09 pm
ASE
-
SAN
4h 06m
1 stop
$374Delta
Thu, Jun 4 - Mon, Jun 8
United Airlines Logo
6:35 am - 12:41 pm
SAN
-
ASE
5h 06m
1 stop
United Airlines Logo
7:15 pm - 11:54 pm
ASE
-
SAN
5h 39m
1 stop
$388United Airlines
Fri, Sep 18 - Mon, Sep 21
United Airlines Logo
1:28 pm - 7:57 pm
SAN
-
ASE
5h 29m
1 stop
United Airlines Logo
6:12 pm - 10:27 pm
ASE
-
SAN
5h 15m
1 stop
$392United Airlines
Thu, Jul 16 - Wed, Jul 22
United Airlines Logo
10:55 am - 4:08 pm
SAN
-
ASE
4h 13m
1 stop
United Airlines Logo
5:10 pm - 11:54 pm
ASE
-
SAN
7h 44m
2 stops
$393United Airlines
Thu, Jul 16 - Tue, Jul 21
United Airlines Logo
10:55 am - 4:08 pm
SAN
-
ASE
4h 13m
1 stop
United Airlines Logo
5:10 pm - 11:54 pm
ASE
-
SAN
7h 44m
2 stops
$401United Airlines
Tue, Jul 14 - Sat, Jul 18
United Airlines Logo
10:49 am - 6:29 pm
SAN
-
ASE
6h 40m
2 stops
United Airlines Logo
7:15 pm - 11:54 pm
ASE
-
SAN
5h 39m
1 stop
$421United Airlines
Booking Insights

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.

How much is a round-trip flight from San Diego to Aspen?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to Aspen departing in July.

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 September, where tickets cost $338 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $565 and $563 respectively.

Good to know

Low seasonMay
Cheapest flight$329
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 9% 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 $357 for a one-way ticket and $329 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, and Star Alliance 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 $318 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $441 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 airlines flying 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.
7.9
DeltaOverall score based on 8424 reviews
8.5Crew
8.1Boarding
7.2Food
7.9Comfort
7.8Entertainment
Airline reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

Complimentary light meal would be appreciated. But great flight crew service on all legs

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

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

Information on your arrival and departure airports