$89+ Cheap flights from San Diego (SAN) to Fort Collins, CO
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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
Oct 14 — Oct 211
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 September 14, 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 September 14, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/204:53 pm -
Nonstop2h 31m
Tue 10/2710:29 pm -
1 stop21h 09m
Deal found 9/10![Frontier logo]()
$100
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 11/136:25 am -
Nonstop2h 34m
Mon 11/167:00 am -
1 stop4h 11m
Deal found 9/10![Frontier logo]()
$101
This Frontier deal was found by Cheapflights users on 9/9. 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.
Thu 11/266:30 am -
Nonstop2h 34m
Wed 12/22:20 pm -
Nonstop2h 26m
Deal found 9/9![Frontier logo]()
$102
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/134:53 pm -
Nonstop2h 32m
Tue 11/177:00 am -
1 stop4h 11m
Deal found 9/11![Frontier logo]()
$103
This Frontier deal was found by Cheapflights users on 9/14. 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.
Mon 11/236:30 am -
Nonstop2h 34m
Wed 12/22:20 pm -
Nonstop2h 26m
Deal found 9/14![Frontier logo]()
$104
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Wed 11/1110:56 am -
1 stop21h 44m
Sun 11/1510:29 pm -
Nonstop2h 28m
Deal found 9/10![Frontier logo]()
$105
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:53 pm -
Nonstop2h 32m
Sun 11/82:38 pm -
Nonstop2h 30m
Deal found 9/13![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 9/11. 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.
Tue 10/276:25 am -
Nonstop2h 34m
Sat 10/312:28 pm -
Nonstop2h 30m
Deal found 9/11![Frontier logo]()
$107
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Sat 10/106:25 am -
Nonstop2h 33m
Mon 10/127:12 am -
1 stop8h 17m
Deal found 9/9![Frontier logo]()
$108
This CheapOair deal was found by Cheapflights users on 9/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:53 pm -
Nonstop2h 31m
Tue 10/2710:29 pm -
Nonstop2h 28m
Deal found 9/12![Frontier logo]()
$110
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:54 pm -
Nonstop2h 28m
Wed 10/142:29 pm -
Nonstop2h 29m
Deal found 9/9![Frontier logo]()
$111
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 September 14, 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 September 14, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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 11/210:57 am -
1 stop5h 49m
Tue 11/1010:45 am -
1 stop6h 33m
Deal found 9/9![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/234:11 pm -
Nonstop2h 29m
Tue 10/273:45 pm -
Nonstop2h 30m
Deal found 9/10![United Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:05 am -
1 stop6h 19m
Wed 12/97:40 am -
2 stops9h 03m
Deal found 9/13![Alaska Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2212:15 pm -
1 stop3h 50m
Wed 11/2512:25 pm -
2 stops5h 00m
Deal found 9/13![Southwest logo]()
$419
This Delta deal was found by Cheapflights users on 9/13. 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.
Wed 11/111:31 pm -
1 stop5h 58m
Sun 11/155:35 am -
1 stop4h 13m
Deal found 9/13![Delta logo]()
$227
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:43 am -
1 stop6h 27m
Thu 12/36:45 am -
1 stop4h 40m
Deal found 9/14![Delta logo]()
$237
This Delta deal was found by Cheapflights users on 9/10. 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.
Sun 11/2211:05 am -
1 stop6h 47m
Wed 11/256:25 am -
1 stop5h 00m
Deal found 9/10![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/194:11 pm -
Nonstop2h 29m
Sun 9/209:00 pm -
Nonstop2h 28m
Deal found 9/10![United Airlines logo]()
$457
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:33 pm -
Nonstop2h 28m
Mon 10/126:59 pm -
Nonstop2h 35m
Deal found 9/9![Alaska Airlines logo]()
$502
This Delta deal was found by Cheapflights users on 9/9. 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 12/103:00 pm -
2 stops7h 14m
Sun 12/135:35 am -
1 stop4h 23m
Deal found 9/9![Delta logo]()
$775
Last-minute flights from San Diego to Fort CollinsDiscover last-minute flight deals from San Diego to Fort Collins. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Fort Collins. Data last updated September 14, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/14:54 pm -
Nonstop2h 28m
Fri 10/210:29 pm -
Nonstop2h 22m
Deal found 9/10![Frontier logo]()
$112
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/24:54 pm -
Nonstop2h 28m
Tue 10/610:29 pm -
Nonstop2h 22m
Deal found 9/10![Frontier logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 10/26:25 am -
Nonstop2h 34m
Fri 10/1610:29 pm -
Nonstop2h 27m
Deal found 9/9![Frontier logo]()
$114
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:54 pm -
Nonstop2h 28m
Wed 10/142:29 pm -
Nonstop2h 29m
Deal found 9/9![Frontier logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Sat 10/106:25 am -
Nonstop2h 33m
Mon 10/127:12 am -
1 stop8h 17m
Deal found 9/9![Frontier logo]()
$108
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/154:53 pm -
Nonstop2h 31m
Tue 10/202:29 pm -
Nonstop2h 29m
Deal found 9/10![Frontier logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/204:53 pm -
Nonstop2h 31m
Tue 10/2710:29 pm -
1 stop21h 09m
Deal found 9/10![Frontier logo]()
$100
This CheapOair deal was found by Cheapflights users on 9/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:53 pm -
Nonstop2h 31m
Tue 10/2710:29 pm -
Nonstop2h 28m
Deal found 9/12![Frontier logo]()
$110
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/276:25 am -
Nonstop2h 34m
Sat 10/312:28 pm -
Nonstop2h 30m
Deal found 9/10![Frontier logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 10/296:25 am -
Nonstop2h 34m
Sat 10/319:21 am -
1 stop10h 17m
Deal found 9/11![Frontier logo]()
$105
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 September 14, 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 September 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/16:54 pm -
1 stop13h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sun 12/134:41 pm -
Nonstop2h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 9/10. 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.
Wed 9/301:38 pm -
1 stop19h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$92
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Mon 10/192:01 pm -
1 stop8h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/298:32 pm -
2 stops22h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Sat 10/106:25 am -
Nonstop2h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/59:03 pm -
2 stops19h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$101
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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $100 (Cheapflightsfares) |
One-way from | $89 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $217 |
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 7,457,451 searches. Data last updated September 14, 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 San Diego - DEN Denver Intl
SANDEN
San Diego
Wed 10/28
3:20 pm-6:35 pm
Nonstop2h 15m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$102
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Tue 10/13
7:00 am-10:33 am
Nonstop2h 33m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Sat 10/10
10:57 am-6:09 pm
1 stop6h 12m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Fri 10/23
7:00 am-10:33 am
Nonstop2h 33m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Wed 10/21
2:00 pm-7:55 pm
1 stop4h 55m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Sun 11/15
6:45 am-10:19 am
Nonstop2h 34m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Fri 10/23
12:45 pm-5:45 pm
1 stop4h 00m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$114
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Sat 12/12
9:53 am-5:19 pm
1 stop6h 26m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$119
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Wed 10/14
3:59 pm-11:53 pm
1 stop6h 54m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$119
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Fri 10/23
10:57 am-6:09 pm
1 stop6h 12m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$119
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 September 14, 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 28% versus a flight in the morning.
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 September 14, 2026.
The most flights from SAN to FC9 are scheduled on a Friday (34 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).
How much does it cost to fly round-trip from San Diego to Fort Collins?
Airfare is below average for this route at the moment.
San Diego to Fort Collins flights typically cost between $145 and $294 in October.The cheapest round-trip price found within the last 5 days was $100 on Frontier (Oct 20-Oct 27).
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 September 5, 2026.
Travelers seeking maximum savings on their San Diego to Fort Collins flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday 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 September 14, 2026.
Read through reviews of airlines operating flights from San Diego to Fort Collins, such as Southwest,Alaska Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from San Diego to Fort Collins. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Find flights from San Diego to Fort Collins, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Fort Collins flights
Browse other San Diego and Fort Collins flight options. Last updated on September 14, 2026.
Other flights from San Diego
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San Diego to Fort Collins flights
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Top 4 airlines flying from San Diego to Fort Collins
Discover the top 4 airlines that operate flights from San Diego to Fort Collins. 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$46 | Average$144 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$116 | Average$207 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$117 | Average$269 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$276 | FlexibilityNo cancel fee | On-time69% |