HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$254+ Cheap flights from Aspen to San Francisco (ASE - SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — SFO
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Aspen to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Aspen to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Aspen (ASE) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$254
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$305

Good round-trip deal

$332 or less

Good one-way deal

$283 or less
Provider with most accurate pricing for Aspen Pitkin County-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Aspen Pitkin County-San Francisco flights.
Search Deals
From Aspen Pitkin County to San Francisco
Search Deals
One-way flight from Aspen Pitkin County to San Francisco
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Aspen Pitkin County to San Francisco.
Search Deals
Price to beat on a one-way flight from Aspen Pitkin County to San Francisco.
Search Deals

Find flight deals from Aspen to San Francisco

Cheapest flights from Aspen to San Francisco
Explore the most affordable flight options available from Aspen to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:15 amASE - SFO
Nonstop3h 03mUnited Airlines
Sun 1/44:20 pmSFO - ASE
Nonstop2h 27mUnited Airlines
Deal found 11/17$269
This Delta deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2012:20 pmASE - SFO
1 stop5h 00mDelta
Wed 12/316:00 amSFO - ASE
1 stop5h 40mDelta
Deal found 11/17$289
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:42 pmASE - SFO
1 stop6h 37mUnited Airlines
Sat 12/66:30 amSFO - ASE
1 stop4h 57mUnited Airlines
Deal found 11/17$309
This Delta deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:17 pmASE - SFO
1 stop6h 26mDelta
Sat 1/36:00 amSFO - ASE
1 stop5h 40mDelta
Deal found 11/17$329
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:15 amASE - SFO
Nonstop3h 03mUnited Airlines
Thu 12/258:25 amSFO - ASE
Nonstop2h 52mUnited Airlines
Deal found 11/17$339
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:30 pmASE - SFO
1 stop5h 25mUnited Airlines
Wed 1/79:00 amSFO - ASE
Nonstop2h 52mUnited Airlines
Deal found 11/17$349
This American Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:11 pmASE - SFO
1 stop4h 47mAmerican Airlines
Sat 1/312:59 amSFO - ASE
1 stop8h 50mAmerican Airlines
Deal found 11/17$359
This American Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:33 amASE - SFO
2 stops13h 56mAmerican Airlines
Wed 12/3110:49 pmSFO - ASE
1 stop10h 02mAmerican Airlines
Deal found 11/17$364
This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:38 pmASE - SFO
Nonstop2h 53mUnited Airlines
Mon 12/294:20 pmSFO - ASE
Nonstop2h 27mUnited Airlines
Deal found 11/18$369
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:30 pmASE - SFO
1 stop5h 25mUnited Airlines
Sun 12/285:00 amSFO - ASE
1 stop6h 49mUnited Airlines
Deal found 11/17$376
This Delta deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:20 pmASE - SFO
1 stop11h 30mDelta
Fri 1/26:00 amSFO - ASE
1 stop5h 40mDelta
Deal found 11/17$377

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aspen to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
Use the filters below to find and compare flights from Aspen to San Francisco that are best for you.

Fly from

Aspen

Fly to

San Francisco

Route

Depart

Return

Price

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Thu 2/5

5:02 pm-10:58 pm

1 stop6h 56m

San Francisco

Mon 2/9

9:00 am-12:52 pm

Nonstop2h 52m

$279

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Sat 12/20

7:38 pm-9:31 pm

Nonstop2h 53m

San Francisco

Sun 1/4

9:15 am-4:10 pm

1 stop5h 55m

$279

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Wed 12/24

12:20 pm-4:20 pm

1 stop5h 00m

San Francisco

Tue 1/6

5:55 am-12:53 pm

1 stop5h 58m

$289

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Thu 12/18

12:17 pm-5:40 pm

1 stop6h 23m

San Francisco

Wed 1/7

5:55 am-12:53 pm

1 stop5h 58m

$289

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Thu 12/18

12:17 pm-5:40 pm

1 stop6h 23m

San Francisco

Sat 1/3

6:00 am-12:40 pm

1 stop5h 40m

$289

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Tue 12/23

7:55 pm-12:26 am

1 stop5h 31m

San Francisco

Sun 1/4

9:15 am-4:10 pm

1 stop5h 55m

$289

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Tue 12/16

12:17 pm-5:40 pm

1 stop6h 23m

San Francisco

Wed 12/31

6:00 am-12:40 pm

1 stop5h 40m

$289

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Tue 12/23

12:20 pm-4:20 pm

1 stop5h 00m

San Francisco

Thu 1/1

6:00 am-12:40 pm

1 stop5h 40m

$289

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Sat 12/20

12:20 pm-4:20 pm

1 stop5h 00m

San Francisco

Fri 1/2

6:00 am-12:40 pm

1 stop5h 40m

$289

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Wed 12/24

12:20 pm-4:20 pm

1 stop5h 00m

San Francisco

Mon 1/5

5:55 am-12:53 pm

1 stop5h 58m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on Aspen-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Aspen-San Francisco flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Aspen-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Aspen-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Aspen-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Aspen to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Aspen with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Aspen to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Aspen to San Francisco (average of $40). Flying from Aspen to San Francisco in April is currently the most expensive (average of $288). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ASE to SFO?

Find hourly flight availability from Aspen to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Aspen to San Francisco in the morning. If you’re flexible enough to do this you can expect to save up to 83% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated November 18, 2025.
Read through reviews of airlines operating flights from Aspen to San Francisco, such as Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,003 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
9,019 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Aspen to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Aspen to San Francisco flight route?

    This flight path from Aspen Pitkin County to San Francisco was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Aspen to San Francisco?

    Airlines like United Airlines and Delta fly from Aspen to San Francisco in about 5h. The time it takes to get you to your destination can typically vary by up to 1h 56m. Aspen and San Francisco are separated by a distance of 845 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Aspen to San Francisco round-trip?

    According to our current data, Delta ($228), and United Airlines ($269) offers the cheapest pricing from Aspen to San Francisco. You may be able to fly from Aspen to San Francisco for 39% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Aspen to San Francisco?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Aspen to San Francisco on time: SkyWest Airlines (89%), United Airlines (89%), Air New Zealand (89%).

  • What are the cheapest flights from Aspen to San Francisco?

    Looking at all options, your cheapest flight can be booked for $253. While the most popular route (Aspen Pitkin County - San Francisco) can be booked for $269 on average, our data indicates $413 when flying from Aspen to San Francisco.

  • Can I find deals for flights from Aspen to San Francisco that include hotel bookings?

    Yes. In addition to deals on Aspen to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Aspen to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Aspen to San Francisco.

  • Can I find deals for business class flights from Aspen to San Francisco?

    Yes. Cheapflights offers flight deals from Aspen to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Aspen to San Francisco (average of $40). Flying from Aspen to San Francisco in April is currently the most expensive (average of $288). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
Vallejo
Hollister
San Bruno
Foster City
Redwood City
Union City
Burlingame
Lodi
San Mateo
Vacaville
Lathrop

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Aspen to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Las Vegas flights
Denver to Los Angeles flights
Denver to Ontario flights
Denver to San Francisco flights
Denver to Santa Ana flights
Denver to San Diego flights
Denver to Palm Springs flights
Denver to Burbank flights
Denver to Sacramento flights
Colorado Springs to Las Vegas flights
Denver to Reno flights
Denver to San Jose flights
Denver to Santa Barbara flights
Denver to Fresno flights
Denver to Monterey flights
Denver to Medford flights
Denver to Long Beach flights
Denver to Oakland flights
Grand Junction to Las Vegas flights
Denver to Redding flights
Denver to San Luis Obispo flights
Colorado Springs to San Diego flights
Colorado Springs to Los Angeles flights
Colorado Springs to Santa Ana flights
Denver to Bakersfield flights
Denver to Arcata flights
Aspen to Los Angeles flights
Grand Junction to San Diego flights
Durango to Reno flights
Grand Junction to Los Angeles flights
Durango to Las Vegas flights
Colorado Springs to Ontario flights
Vail to Los Angeles flights
Durango to San Francisco flights
Colorado Springs to San Jose flights
Vail to Las Vegas flights
Vail to Santa Ana flights
Montrose to Los Angeles flights
Aspen to Las Vegas flights
Grand Junction to San Francisco flights
Montrose to Las Vegas flights
Colorado Springs to Palm Springs flights
Grand Junction to Sacramento flights
Durango to Santa Ana flights
Grand Junction to Ontario flights
Aspen to Ontario flights
Vail to San Diego flights
Durango to Los Angeles flights
Grand Junction to Santa Ana flights

Top 2 airlines flying from Aspen to San Francisco

Discover the top 2 airlines that operate flights from Aspen to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$269Average$379FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.