$71+ Cheap flights from San Diego (SAN) to Fort Collins, CO
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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
Jul 16 — Jul 231
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Fort Collins 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 Diego to Fort Collins are usually found in February or January, booked 63 days in advance, depart on a Friday or Saturday and return on a Thursday
Cheap flight deals from San Diego to Fort Collins
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to Fort CollinsExplore the most affordable flight options available from San Diego to Fort Collins. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
Explore the most affordable flight options available from San Diego to Fort Collins. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Tue 8/187:13 am
DEN
- SAN
Nonstop2h 29m
Frontier
Deal found 6/14![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:32 pm
SAN
- DEN
Nonstop2h 34m
Frontier
Sun 10/1110:32 pm
DEN
- SAN
Nonstop2h 27m
Frontier
Deal found 6/11![Frontier logo]()
$126
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Wed 8/127:45 am
DEN
- SAN
Nonstop2h 25m
Frontier
Deal found 6/12![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 6/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Tue 8/47:40 am
DEN
- SAN
Nonstop2h 25m
Frontier
Deal found 6/12![Frontier logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:37 am
SAN
- DEN
Nonstop2h 36m
Frontier
Sun 8/237:13 am
DEN
- SAN
Nonstop2h 29m
Frontier
Deal found 6/11![Frontier logo]()
$132
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Mon 8/107:45 am
DEN
- SAN
Nonstop2h 25m
Frontier
Deal found 6/11![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:17 pm
SAN
- DEN
1 stop4h 29m
Frontier
Sat 8/227:13 am
DEN
- SAN
Nonstop2h 29m
Frontier
Deal found 6/12![Frontier logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:00 am
SAN
- DEN
Nonstop2h 41m
Frontier
Wed 8/510:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 6/11![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:25 am
SAN
- DEN
Nonstop2h 41m
Frontier
Tue 9/89:01 am
DEN
- SAN
1 stop7h 31m
Frontier
Deal found 6/11![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 6/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Sat 8/2210:29 pm
DEN
- SAN
Nonstop2h 24m
Frontier
Deal found 6/14![Frontier logo]()
$143
Best flights from San Diego to Fort CollinsDiscover carefully curated flight deals from San Diego to Fort Collins that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
Discover carefully curated flight deals from San Diego to Fort Collins that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:50 pm
SAN
- DEN
Nonstop2h 20m
Southwest
Sun 9/136:00 am
DEN
- SAN
Nonstop2h 25m
Southwest
Deal found 6/15![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:15 am
SAN
- DEN
1 stop4h 40m
Delta
Mon 11/25:40 am
DEN
- SAN
1 stop4h 26m
Delta
Deal found 6/15![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/246:55 pm
SAN
- DEN
Nonstop2h 32m
United Airlines
Mon 7/277:20 pm
DEN
- SAN
Nonstop2h 26m
United Airlines
Deal found 6/11![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 6/13. 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 10/121:30 pm
SAN
- DEN
1 stop4h 40m
Delta
Fri 10/166:25 pm
DEN
- SAN
1 stop6h 22m
Delta
Deal found 6/13![Delta logo]()
$288
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:10 pm
SAN
- DEN
1 stop4h 10m
Southwest
Sun 7/57:50 am
DEN
- SAN
2 stops6h 40m
Southwest
Deal found 6/12![Southwest logo]()
$508
This Delta deal was found by Cheapflights users on 6/12. 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 10/1910:00 am
SAN
- DEN
2 stops8h 10m
Delta
Thu 10/226:30 am
DEN
- SAN
1 stop5h 00m
Delta
Deal found 6/12![Delta logo]()
$660
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:54 am
SAN
- DEN
1 stop6h 27m
Delta
Mon 9/145:56 pm
DEN
- SAN
2 stops6h 46m
Delta
Deal found 6/15![Delta logo]()
$660
This Delta deal was found by Cheapflights users on 6/13. 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 9/1710:54 am
SAN
- DEN
2 stops7h 36m
Delta
Sun 9/205:30 am
DEN
- SAN
1 stop4h 11m
Delta
Deal found 6/13![Delta logo]()
$660
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/43:59 pm
SAN
- DEN
1 stop6h 01m
Delta
Mon 12/712:45 pm
DEN
- SAN
2 stops7h 10m
Delta
Deal found 6/15![Delta logo]()
$695
This Delta deal was found by Cheapflights users on 6/11. 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 7/186:15 am
SAN
- DEN
2 stops7h 38m
Delta
Fri 7/247:09 pm
DEN
- SAN
1 stop5h 40m
Delta
Deal found 6/11![Delta logo]()
$695
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:55 am
SAN
- DEN
2 stops8h 06m
Delta
Sun 8/166:28 pm
DEN
- SAN
1 stop6h 22m
Delta
Deal found 6/15![Delta logo]()
$705
Last-minute flights from San Diego to Fort CollinsDiscover last-minute flight deals from San Diego to Fort Collins. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Fort Collins. Data last updated June 16, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:00 am
SAN
- DEN
Nonstop2h 41m
Frontier
Wed 8/510:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 6/11![Frontier logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Wed 7/87:40 am
DEN
- SAN
Nonstop2h 25m
Frontier
Deal found 6/12![Frontier logo]()
$156
This Super.com deal was found by Cheapflights users on 6/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:00 am
SAN
- DEN
Nonstop2h 41m
Frontier
Tue 7/217:40 am
DEN
- SAN
Nonstop2h 25m
Frontier
Deal found 6/13![Frontier logo]()
$157
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Fri 7/2410:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 6/14![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 6/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Tue 8/47:40 am
DEN
- SAN
Nonstop2h 25m
Frontier
Deal found 6/12![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Tue 8/410:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 6/12![Frontier logo]()
$147
One-way flights from San Diego to Fort CollinsSearch for one-way flight options from San Diego to Fort Collins. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
Search for one-way flight options from San Diego to Fort Collins. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:57 am
SAN
- DEN
1 stop4h 41m
Frontier
Deal found 6/11![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Deal found 6/14![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Deal found 6/11![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Deal found 6/15![Frontier logo]()
$78
This Trip.com deal was found by Cheapflights users on 6/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:00 am
SAN
- DEN
Nonstop2h 41m
Frontier
Deal found 6/13![Frontier logo]()
$82
This Frontier deal was found by Cheapflights users on 6/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Deal found 6/13![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/284:12 pm
SAN
- DEN
1 stop26h 34m
Frontier
Deal found 6/13![Frontier logo]()
$85
This WAYA deal was found by Cheapflights users on 6/14. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:12 pm
SAN
- DEN
1 stop4h 37m
Frontier
Deal found 6/14![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:51 pm
SAN
- DEN
1 stop5h 57m
Frontier
Deal found 6/14![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/53:03 pm
SAN
- DEN
1 stop5h 38m
Frontier
Deal found 6/11![Frontier logo]()
$90
Find flight deals from San Diego to Fort Collins
Keep the following information in mind while searching for San Diego to Fort Collins flight deals. Data was last updated June 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $124 (Cheapflightsfares) |
One-way from | $71 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $266 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Fort Collins 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 June 16, 2026.
Use the filters below to find and compare flights from San Diego to Fort Collins that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Fri 9/11
7:50 pm-11:10 pm
Nonstop2h 20m
Denver Intl
Sun 9/13
6:00 am-7:25 am
Nonstop2h 25m
$197
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Mon 10/26
6:15 am-11:55 am
1 stop4h 40m
Denver Intl
Mon 11/2
5:40 am-9:06 am
1 stop4h 26m
$217
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Mon 10/12
1:30 pm-7:10 pm
1 stop4h 40m
Denver Intl
Fri 10/16
6:25 pm-11:47 pm
1 stop6h 22m
$288
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Fri 7/24
6:55 pm-10:27 pm
Nonstop2h 32m
Denver Intl
Mon 7/27
7:20 pm-8:46 pm
Nonstop2h 26m
$347
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Thu 7/2
5:10 pm-10:20 pm
1 stop4h 10m
Denver Intl
Sun 7/5
7:50 am-1:30 pm
2 stops6h 40m
$508
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Mon 10/19
10:00 am-7:10 pm
2 stops8h 10m
Denver Intl
Thu 10/22
6:30 am-10:30 am
1 stop5h 00m
$660
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Wed 9/9
10:54 am-6:21 pm
1 stop6h 27m
Denver Intl
Mon 9/14
5:56 pm-11:42 pm
2 stops6h 46m
$660
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Thu 9/17
10:54 am-7:30 pm
2 stops7h 36m
Denver Intl
Sun 9/20
5:30 am-8:41 am
1 stop4h 11m
$660
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Fri 12/4
3:59 pm-11:00 pm
1 stop6h 01m
Denver Intl
Mon 12/7
12:45 pm-6:55 pm
2 stops7h 10m
$695
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Sat 7/18
6:15 am-2:53 pm
2 stops7h 38m
Denver Intl
Fri 7/24
7:09 pm-11:49 pm
1 stop5h 40m
$695
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from San Diego to Fort Collins
Have a flexible travel schedule? Discover the best time to fly to Fort Collins from San Diego with our price prediction graph.
SAN-DEN
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 Diego to Fort Collins
SAN-FC9
SAN-DEN
What is the cheapest time of day to fly from SAN to FC9?
Find hourly flight availability from San Diego to Fort Collins. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 16, 2026.
When flying from San Diego to Fort Collins, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight in the afternoon.
Weekly flight availability from San Diego to Fort Collins
Explore weekly flight availability from San Diego to Fort Collins. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 16, 2026.
The most flights from SAN to FC9 are scheduled on a Monday (33 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from San Diego to Fort Collins?
What is the cheapest day to fly from San Diego to Fort Collins?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Fort Collins. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their San Diego to Fort Collins flight should consider departing on Tuesday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Fort Collins
Get insights into the airlines that provide service to Fort Collins. 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 Fort Collins. Reviews last updated June 16, 2026.
Read through reviews of airlines operating flights from San Diego to Fort Collins, such as Alaska Airlines,Southwest, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.1
Boarding
8.1
Entertainment
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.1
Boarding
8.1
Entertainment
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.1
Boarding
8.1
Entertainment
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.1
Boarding
8.1
Entertainment
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.1
Boarding
8.1
Entertainment
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.1
Boarding
8.1
Entertainment
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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San Diego and Fort Collins flights
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Top 5 airlines flying from San Diego to Fort Collins
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$49 | Average$147 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$167 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$113 | Average$206 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$117 | Average$229 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$274 | FlexibilityNo cancel fee | On-time69% |