$305+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — SFO
Sep 18 — Sep 251
Round-trip
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
Cheapest
Best
Last-minute
One-way
Cheapest flights from Aspen to San FranciscoExplore 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 August 19, 2026.
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 August 19, 2026.
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/79:40 am -
Nonstop2h 45m
Tue 10/134:35 pm -
Nonstop2h 32m
Deal found 8/16![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/78:00 am -
1 stop5h 30m
Sun 10/114:35 pm -
Nonstop2h 32m
Deal found 8/14![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/38:05 am -
1 stop7h 47m
Tue 9/84:20 pm -
Nonstop2h 32m
Deal found 8/14![United Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 8/18. 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.
Wed 10/712:02 pm -
1 stop4h 52m
Sun 10/112:40 pm -
1 stop4h 34m
Deal found 8/18![Delta logo]()
$504
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/23:20 pm -
1 stop5h 18m
Sun 9/61:56 pm -
1 stop5h 30m
Deal found 8/18![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 10/89:40 am -
Nonstop2h 45m
Sun 10/114:35 pm -
Nonstop2h 32m
Deal found 8/18![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/109:40 am -
Nonstop2h 45m
Sun 9/134:20 pm -
Nonstop2h 32m
Deal found 8/17![United Airlines logo]()
$560
This Delta deal was found by Cheapflights users on 8/17. 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.
Tue 8/2512:03 pm -
1 stop4h 47m
Mon 8/3111:54 am -
1 stop7h 30m
Deal found 8/17![Delta logo]()
$564
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/96:05 pm -
1 stop5h 46m
Sun 10/115:00 am -
1 stop6h 34m
Deal found 8/14![United Airlines logo]()
$579
Best flights from Aspen to San FranciscoDiscover carefully curated flight deals from Aspen to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
Discover carefully curated flight deals from Aspen to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
This United Airlines deal was found by Cheapflights users on 8/18. 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 10/69:40 am -
Nonstop2h 45m
Sat 10/104:35 pm -
Nonstop2h 32m
Deal found 8/18![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 8/16. 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 10/712:02 pm -
1 stop4h 52m
Sun 10/112:40 pm -
1 stop4h 34m
Deal found 8/16![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/309:40 am -
Nonstop2h 45m
Wed 10/74:35 pm -
Nonstop2h 32m
Deal found 8/14![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 8/16. 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.
Thu 10/812:02 pm -
1 stop4h 52m
Sun 10/112:40 pm -
1 stop4h 34m
Deal found 8/16![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/113:20 pm -
1 stop6h 52m
Fri 9/184:20 pm -
Nonstop2h 32m
Deal found 8/14![United Airlines logo]()
$489
Last-minute flights from Aspen to San FranciscoDiscover last-minute flight deals from Aspen to San Francisco. Data last updated August 19, 2026 and is based on user searches.
Discover last-minute flight deals from Aspen to San Francisco. Data last updated August 19, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/17. 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 8/2112:03 pm -
1 stop26h 23m
Mon 8/3111:54 am -
1 stop7h 30m
Deal found 8/17![Delta logo]()
$624
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 8/244:45 pm -
1 stop7h 10m
Mon 8/314:20 pm -
Nonstop2h 32m
Deal found 8/17![United Airlines logo]()
$634
This Delta deal was found by Cheapflights users on 8/17. 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.
Tue 8/2512:03 pm -
1 stop4h 47m
Mon 8/3111:54 am -
1 stop7h 30m
Deal found 8/17![Delta logo]()
$564
This Delta deal was found by Cheapflights users on 8/18. 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.
Tue 8/2512:03 pm -
1 stop4h 47m
Sat 8/2911:54 am -
1 stop6h 18m
Deal found 8/18![Delta logo]()
$619
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/29:40 am -
Nonstop2h 45m
Sun 9/64:20 pm -
Nonstop2h 32m
Deal found 8/18![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/109:40 am -
Nonstop2h 45m
Sun 9/134:20 pm -
Nonstop2h 32m
Deal found 8/17![United Airlines logo]()
$560
This Delta deal was found by Cheapflights users on 8/18. 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.
Tue 9/2912:02 pm -
1 stop4h 52m
Mon 10/511:58 am -
1 stop7h 22m
Deal found 8/18![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/296:05 pm -
1 stop5h 46m
Mon 10/54:35 pm -
Nonstop2h 32m
Deal found 8/18![United Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 8/15. 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 9/297:00 am -
1 stop17h 56m
Mon 10/56:00 am -
2 stops13h 21m
Deal found 8/15![American Airlines logo]()
$625
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/309:40 am -
Nonstop2h 45m
Wed 10/74:35 pm -
Nonstop2h 32m
Deal found 8/14![United Airlines logo]()
$479
One-way flights from Aspen to San FranciscoSearch for one-way flight options from Aspen to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
Search for one-way flight options from Aspen to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/297:00 am -
1 stop15h 54m
Deal found 8/17![American Airlines logo]()
$305
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/97:00 am -
1 stop14h 04m
Deal found 8/17![American Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/147:25 am -
Nonstop2h 57m
Deal found 8/14![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/17. 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 10/97:12 pm -
1 stop18h 18m
Deal found 8/17![United Airlines logo]()
$362
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/1010:31 am -
2 stops9h 31m
Deal found 8/17![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 8/17. 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 1/17:11 pm -
Nonstop2h 54m
Deal found 8/17![United Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/17:12 pm -
1 stop4h 50m
Deal found 8/17![United Airlines logo]()
$418
Find 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 August 19, 2026.
Round-trip from | $479 (United Airlines) |
|---|---|
One-way from | $305 (American Airlines) |
Popular in | August |
Cheapest in | November |
Average price | $668 |
Good round-trip deal | $479 or less |
Good one-way deal | $408 or less |
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 7,457,451 searches. Data last updated August 19, 2026.
Use the filters below to find and compare flights from Aspen to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Tue 10/6
9:40 am-11:25 am
Nonstop2h 45m
San Francisco
Sat 10/10
4:35 pm-8:07 pm
Nonstop2h 32m
$479
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Wed 9/30
9:40 am-11:25 am
Nonstop2h 45m
San Francisco
Wed 10/7
4:35 pm-8:07 pm
Nonstop2h 32m
$479
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Fri 9/11
3:20 pm-9:12 pm
1 stop6h 52m
San Francisco
Fri 9/18
4:20 pm-7:52 pm
Nonstop2h 32m
$489
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Wed 10/7
12:02 pm-3:54 pm
1 stop4h 52m
San Francisco
Sun 10/11
2:40 pm-8:14 pm
1 stop4h 34m
$499
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Thu 10/8
12:02 pm-3:54 pm
1 stop4h 52m
San Francisco
Sun 10/11
2:40 pm-8:14 pm
1 stop4h 34m
$499
Cheapest one-way
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Wed 2/3
12:54 pm-11:59 pm
1 stop12h 05m
$343
Quickest one-way
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Thu 9/10
9:40 am-11:25 am
Nonstop2h 45m
$359
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Wed 2/3
7:25 am-9:22 am
Nonstop2h 57m
$359
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Mon 12/14
7:25 am-9:22 am
Nonstop2h 57m
$359
AspenSan Francisco
ASE Aspen Pitkin County - SFO San Francisco
ASESFO
Aspen Pitkin County
Wed 9/9
9:25 am-11:10 am
Nonstop2h 45m
$359
Showing 1-10 of 13 resultsSorted by cheapest first
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.
ASE-SFO
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
Prices
Airlines
What is the cheapest month to book a flight from Aspen to San Francisco?
Currently, November is the cheapest month in which you can book a flight from Aspen to San Francisco (average of $305). Flying from Aspen to San Francisco in August is currently the most expensive (average of $668). 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 August 19, 2026.
A simple way to save on the total cost of your ticket is to fly from Aspen to San Francisco at noon. If you’re flexible enough to do this you can expect to save up to 69% on your trip compared to booking a flight in the afternoon.
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 August 19, 2026.
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.
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
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.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
San Bruno
Emeryville
Roseville
Burlingame
Rancho Cordova
Fairfield
Vallejo
Cupertino
Newark
Hayward
San Ramon
Redwood City
Manteca
San Carlos
Turlock
San Lorenzo
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Aspen
Popular flights
San Francisco flight routes
Alternative routes for Aspen to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Francisco by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Aspen to San Francisco by cabin class
Find flights from Aspen to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Aspen and San Francisco flights
Browse other Aspen and San Francisco flight options. Last updated on August 19, 2026.
Other flights from Aspen
Browse through other flights departing from Aspen. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.
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 7,457,451 searches. Data last updated August 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$263 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$279 | Average$386 | FlexibilityNo cancel fee | On-time69% |