$345+ Cheap flights from San Francisco to Aspen (SFO - ASE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ASE
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Aspen 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.Cheapflights Tip: The best prices from San Francisco to Aspen Pitkin County are usually found in March or January, booked 80 days in advance, depart on a Saturday or Wednesday and return on a Thursday
Cheap flight deals from San Francisco to Aspen
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Francisco to AspenExplore the most affordable flight options available from San Francisco to Aspen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from San Francisco to Aspen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Fri 10/164:35 pm -
Nonstop2h 32m
Fri 10/239:40 am -
Nonstop2h 45m
Deal found 9/18![United Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Fri 10/94:35 pm -
Nonstop2h 32m
Tue 10/137:12 pm -
1 stop4h 40m
Deal found 9/21![United Airlines logo]()
$534
This Delta deal was found by Cheapflights users on 9/22. 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 10/249:54 am -
1 stop6h 29m
Tue 10/2712:02 pm -
1 stop4h 52m
Deal found 9/22![Delta logo]()
$539
This Delta deal was found by Cheapflights users on 9/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:30 pm -
1 stop4h 50m
Mon 10/512:02 pm -
1 stop4h 52m
Deal found 9/18![Delta logo]()
$549
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Mon 12/284:16 pm -
Nonstop2h 28m
Fri 1/16:23 pm -
1 stop6h 36m
Deal found 9/18![United Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Fri 10/24:35 pm -
Nonstop2h 32m
Mon 10/58:30 am -
1 stop7h 45m
Deal found 9/18![United Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 10/184:35 pm -
Nonstop2h 32m
Sun 10/252:17 pm -
1 stop6h 53m
Deal found 9/18![United Airlines logo]()
$629
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/294:35 pm -
Nonstop2h 32m
Tue 10/69:40 am -
Nonstop2h 45m
Deal found 9/21![United Airlines logo]()
$634
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/106:16 am -
1 stop7h 21m
Sat 11/142:17 pm -
1 stop6h 53m
Deal found 9/21![United Airlines logo]()
$639
Best flights from San Francisco to AspenDiscover carefully curated flight deals from San Francisco to Aspen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from San Francisco to Aspen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This Delta deal was found by Cheapflights users on 9/20. 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 10/249:54 am -
1 stop6h 29m
Tue 10/2712:02 pm -
1 stop4h 52m
Deal found 9/20![Delta logo]()
$539
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Fri 10/24:35 pm -
Nonstop2h 32m
Mon 10/58:30 am -
1 stop7h 45m
Deal found 9/18![United Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 9/19. 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 11/106:16 am -
1 stop7h 21m
Sat 11/142:17 pm -
1 stop6h 53m
Deal found 9/19![United Airlines logo]()
$639
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/74:35 pm -
Nonstop2h 32m
Sun 10/117:12 pm -
1 stop5h 47m
Deal found 9/22![United Airlines logo]()
$639
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Tue 9/2912:35 pm -
1 stop6h 56m
Tue 10/69:40 am -
Nonstop2h 45m
Deal found 9/18![United Airlines logo]()
$644
Last-minute flights from San Francisco to AspenDiscover last-minute flight deals from San Francisco to Aspen. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Aspen. Data last updated September 22, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/294:35 pm -
Nonstop2h 32m
Tue 10/69:40 am -
Nonstop2h 45m
Deal found 9/21![United Airlines logo]()
$634
This Delta deal was found by Cheapflights users on 9/19. 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.
Wed 9/302:30 pm -
1 stop4h 50m
Mon 10/512:02 pm -
1 stop4h 52m
Deal found 9/19![Delta logo]()
$639
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Fri 10/22:20 pm -
1 stop5h 01m
Tue 10/68:00 am -
1 stop6h 12m
Deal found 9/17![United Airlines logo]()
$549
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Fri 10/24:35 pm -
Nonstop2h 32m
Mon 10/58:30 am -
1 stop7h 45m
Deal found 9/18![United Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Fri 10/94:35 pm -
Nonstop2h 32m
Tue 10/137:12 pm -
1 stop4h 40m
Deal found 9/21![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Fri 10/164:35 pm -
Nonstop2h 32m
Fri 10/239:40 am -
Nonstop2h 45m
Deal found 9/18![United Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 10/184:35 pm -
Nonstop2h 32m
Sun 10/252:17 pm -
1 stop6h 53m
Deal found 9/18![United Airlines logo]()
$629
This Delta deal was found by Cheapflights users on 9/22. 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 10/249:54 am -
1 stop6h 29m
Tue 10/2712:02 pm -
1 stop4h 52m
Deal found 9/22![Delta logo]()
$539
One-way flights from San Francisco to AspenSearch for one-way flight options from San Francisco to Aspen. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from San Francisco to Aspen. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Wed 2/247:31 pm -
1 stop16h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 9/17. 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 12/98:10 am -
2 stops12h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 10/307:15 am -
2 stops12h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![American Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 12/108:40 am -
2 stops10h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![American Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 9/2712:28 pm -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 9/22. 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 12/812:05 pm -
2 stops23h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![American Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Fri 12/185:00 am -
1 stop4h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$519
Find flight deals from San Francisco to Aspen
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Aspen (ASE). 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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $519 (United Airlines) |
One-way from | $345 (American Airlines) |
Popular in | June |
Cheapest in | March |
Average price | $601 |
Good round-trip deal | $579 or less |
Good one-way deal | $524 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Aspen 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 7,457,451 searches. Data last updated September 22, 2026.
Use the filters below to find and compare flights from San Francisco to Aspen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Wed 12/9
8:10 am-9:32 pm
2 stops12h 22m
Aspen Pitkin County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$354
Quickest round-trip
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Wed 2/24
7:15 am-10:39 am
Nonstop2h 24m
Aspen Pitkin County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$379
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Fri 1/29
10:05 am-1:45 pm
Nonstop2h 40m
Aspen Pitkin County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$379
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Thu 12/10
4:18 pm-7:49 pm
Nonstop2h 31m
Aspen Pitkin County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$379
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Sat 10/24
9:54 am-5:23 pm
1 stop6h 29m
Aspen Pitkin County
Tue 10/27
12:02 pm-3:54 pm
1 stop4h 52m
$539
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Fri 10/2
4:35 pm-8:07 pm
Nonstop2h 32m
Aspen Pitkin County
Mon 10/5
8:30 am-3:15 pm
1 stop7h 45m
$626
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Tue 11/10
6:16 am-2:37 pm
1 stop7h 21m
Aspen Pitkin County
Sat 11/14
2:17 pm-8:10 pm
1 stop6h 53m
$639
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Wed 10/7
4:35 pm-8:07 pm
Nonstop2h 32m
Aspen Pitkin County
Sun 10/11
7:12 pm-11:59 pm
1 stop5h 47m
$639
San FranciscoAspen
SFO San Francisco - ASE Aspen Pitkin County
SFOASE
San Francisco
Tue 9/29
12:35 pm-8:31 pm
1 stop6h 56m
Aspen Pitkin County
Tue 10/6
9:40 am-11:25 am
Nonstop2h 45m
$644
Sorted by cheapest first
Compare providers for flights from San Francisco to Aspen
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Aspen in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Aspen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Aspen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Aspen flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Aspen flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Francisco-Aspen 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 San Francisco to Aspen
Have a flexible travel schedule? Discover the best time to fly to Aspen from San Francisco with our price prediction graph.
SFO-ASE
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 San Francisco to Aspen
How far ahead should I book a flight from San Francisco to Aspen?
To ensure you get the cheapest price possible for a flight from San Francisco to Aspen, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Francisco to Aspen?
Currently, March is the cheapest month in which you can book a flight from San Francisco to Aspen (average of $439). Flying from San Francisco to Aspen in June is currently the most expensive (average of $689). 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 SFO to ASE?
Find hourly flight availability from San Francisco to Aspen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 22, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Aspen as you normally would.
Reviews of airlines servicing Aspen
Get insights into the airlines that provide service to Aspen. 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 Aspen. Reviews last updated September 22, 2026.
Read through reviews of airlines operating flights from San Francisco to Aspen, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodMoishe,Oct 2024
LGA - DEN
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodMoishe,Oct 2024
LGA - DEN
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodMoishe,Oct 2024
LGA - DEN
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Aspen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Aspen?
Book flights to Aspen if you plan to visit one of these locationsSnowmass Village
Leadville
Snowmass
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.
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Other flights to Aspen
Explore flights to Aspen departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Complete your trip
Complete your trip to Aspen by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Aspen by cabin class
Find flights from San Francisco to Aspen, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Aspen flights
Browse other San Francisco and Aspen flight options. Last updated on September 22, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from San Francisco to Aspen
Discover the top 2 airlines that operate flights from San Francisco to Aspen. 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 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$284 | Average$458 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$339 | Average$578 | FlexibilityNo cancel fee | On-time69% |