SFO - ASE

$209 Find Cheap Flights from San Francisco 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 Francisco to Aspen departing on 9/20. 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 Francisco 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 Francisco to Aspen, as well as popular online travel agencies
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Flight Deals

Cheap Flights from San Francisco to Aspen (SFO-ASE)

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

Sat, Sep 20 - Wed, Sep 24
United Airlines Logo
4:25 pm - 7:43 pmSFO-ASE
2h 18mnonstop
United Airlines Logo
7:08 am - 8:48 amASE-SFO
2h 40mnonstop
$209United Airlines
Find Deal
Sat, Sep 20 - Wed, Sep 24
United Airlines Logo
11:20 am - 7:24 pmSFO-ASE
7h 04m1 stop
United Airlines Logo
7:08 am - 8:48 amASE-SFO
2h 40mnonstop
$219United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
5:05 am - 12:59 pmSFO-ASE
6h 54m1 stop
United Airlines Logo
6:15 pm - 10:57 pmASE-SFO
5h 42m1 stop
$229United Airlines
Find Deal
Sat, Jan 10 - Fri, Jan 16
American Airlines Logo
6:01 am - 4:30 pmSFO-ASE
9h 29m2 stops
American Airlines Logo
12:10 pm - 6:47 pmASE-SFO
7h 37m1 stop
$234American Airlines
Find Deal
Wed, Nov 19 - Thu, Nov 27
United Airlines Logo
6:30 am - 2:36 pmSFO-ASE
7h 06m1 stop
United Airlines Logo
1:40 pm - 5:38 pmASE-SFO
4h 58m1 stop
$254United Airlines
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Wed, Sep 17 - Mon, Sep 22
Delta Logo
10:55 am - 5:53 pmSFO-ASE
5h 58m1 stop
Delta Logo
12:02 pm - 5:18 pmASE-SFO
6h 16m1 stop
$269Delta
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Sat, Jan 10 - Fri, Jan 16
United Airlines Logo
8:30 am - 12:18 pmSFO-ASE
2h 48mnonstop
United Airlines Logo
7:23 pm - 9:09 pmASE-SFO
2h 46mnonstop
$279United Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 7
Alaska Airlines Logo
6:00 am - 1:25 pmSFO-ASE
6h 25m1 stop
Alaska Airlines Logo
7:00 pm - 8:29 amASE-SFO
14h 29m1 stop
$299Alaska Airlines
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Wed, Oct 15 - Wed, Oct 22
American Airlines Logo
6:25 am - 6:59 pmSFO-ASE
11h 34m2 stops
American Airlines Logo
8:00 am - 4:55 pmASE-SFO
9h 55m2 stops
$325American Airlines
Find Deal
Fri, Sep 26 - Tue, Sep 30
Delta Logo
10:55 am - 5:53 pmSFO-ASE
5h 58m1 stop
Delta Logo
12:02 pm - 5:18 pmASE-SFO
6h 16m1 stop
$419Delta
Find Deal
Booking Insights

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

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

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

If you are looking for a flight deal from San Francisco to Aspen, look for departures on Saturdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Aspen, Thursday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco 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 Francisco to Aspen is July, where tickets cost $409 (return) on average. On the other hand, the most expensive months are February and November, where the average cost of round-trip tickets is $664 and $602 respectively.

Can I save money by flying with a layover from San Francisco to Aspen?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $787 on average.

How far in advance should I book a flight from San Francisco 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 Francisco 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 Francisco to Aspen, you should book around 5 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$209
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from San Francisco to Aspen

When to book flights from San Francisco to Aspen

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

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

    In the last 3 days, the lowest price for a flight from San Francisco to Aspen was $225 for a one-way ticket and $209 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the San Francisco to Aspen flight route.

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

    Star Alliance is the only airline alliance operating flights between San Francisco and Aspen.

  • On which days can I fly direct from San Francisco to Aspen?

    There are nonstop flights from San Francisco to Aspen on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Aspen are United Airlines and American Airlines. With an average price for the route of $548 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $400 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from San Francisco 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 Francisco to Aspen.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Aspen from San Francisco 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 Francisco 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 Francisco with another airline. Booking your flights between San Francisco 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 Francisco 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 Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Aspen

  • Looking for a cheap flight? 25% of our users found flights on this route for $298 or less one-way and $379 or less round-trip.

Prefer to fly direct from San Francisco to Aspen?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Aspen Pitkin County.
Find which airlines fly direct from San Francisco Airport to Aspen Pitkin County Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Aspen Pitkin County

Monday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Tuesday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Wednesday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Thursday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Friday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Saturday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Sunday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

See more direct flights

Direct returns

Aspen Pitkin County to San Francisco

Monday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Tuesday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Wednesday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Thursday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Friday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Saturday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

Sunday

Air New Zealand, United Airlines

Air New Zealand, United Airlines

See more direct flights

Reviews of the top airlines flying from San Francisco to Aspen

 
See real verified KAYAK customer reviews for airlines flying from San Francisco 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 Francisco 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.
7.4
United AirlinesOverall score based on 8943 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
8.1Crew
Airline reviews

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

2.0 MediocreMartin, Aug 2025SFO - YVR
Read more United Airlines reviews

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

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.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Was not able to watch most shows on the entertainment site. They would not load

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

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

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

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

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