$89+ 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
Aug 28 — Sep 41
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 July 29, 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 July 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/183:45 pm
SAN
- DEN
Nonstop2h 35m
Frontier
Wed 8/1912:22 pm
DEN
- SAN
1 stop8h 53m
Frontier
Deal found 7/28![Frontier logo]()
$157
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 9/144:54 pm
SAN
- DEN
Nonstop2h 28m
Frontier
Mon 9/1410:50 pm
DEN
- SAN
1 stop19h 09m
Frontier
Deal found 7/28![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Fri 8/288:59 pm
SAN
- DEN
1 stop5h 49m
Frontier
Wed 9/22:45 pm
DEN
- SAN
1 stop6h 30m
Frontier
Deal found 7/28![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/246:25 am
SAN
- DEN
2 stops10h 35m
Frontier
Mon 8/3112:47 pm
DEN
- SAN
1 stop8h 27m
Frontier
Deal found 7/27![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 7/28. 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.
Wed 9/96:25 am
SAN
- DEN
Nonstop2h 34m
Frontier
Mon 9/148:59 am
DEN
- SAN
1 stop10h 20m
Frontier
Deal found 7/28![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/206:25 am
SAN
- DEN
2 stops10h 35m
Frontier
Mon 8/248:31 pm
DEN
- SAN
1 stop4h 13m
Frontier
Deal found 7/28![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Fri 9/43:45 pm
SAN
- DEN
Nonstop2h 35m
Frontier
Mon 9/76:45 am
DEN
- SAN
1 stop17h 59m
Frontier
Deal found 7/26![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/196:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Thu 8/2012:47 pm
DEN
- SAN
1 stop8h 17m
Frontier
Deal found 7/28![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Fri 8/218:59 pm
SAN
- DEN
1 stop5h 49m
Frontier
Wed 8/2610:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 7/28![Frontier logo]()
$167
This Southwest deal was found by Cheapflights users on 7/28. 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.
Wed 9/1611:45 am
SAN
- DEN
Nonstop2h 25m
Southwest
Sat 9/191:35 pm
DEN
- SAN
2 stops6h 20m
Southwest
Deal found 7/28![Southwest logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/296:25 am
SAN
- DEN
2 stops10h 35m
Frontier
Sun 8/3010:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 7/25![Frontier logo]()
$169
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 July 29, 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 July 29, 2026.
This Southwest deal was found by Cheapflights users on 7/27. 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.
Tue 9/297:25 am
SAN
- DEN
1 stop4h 15m
Southwest
Tue 10/66:55 pm
DEN
- SAN
1 stop4h 10m
Southwest
Deal found 7/27![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 7/24. 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 9/295:01 pm
SAN
- DEN
1 stop4h 39m
Delta
Sat 10/310:45 am
DEN
- SAN
1 stop6h 11m
Delta
Deal found 7/24![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/512:33 pm
SAN
- DEN
Nonstop2h 33m
United Airlines
Mon 9/77:43 am
DEN
- SAN
Nonstop2h 22m
United Airlines
Deal found 7/28![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 7/24. 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 9/2410:54 am
SAN
- DEN
1 stop6h 17m
Delta
Sat 10/31:00 pm
DEN
- SAN
1 stop3h 56m
Delta
Deal found 7/24![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 9/211:06 am
SAN
- DEN
1 stop6h 26m
Alaska Airlines
Tue 9/88:08 am
DEN
- SAN
2 stops11h 29m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$470
This Delta deal was found by Cheapflights users on 7/26. 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 10/2310:57 am
SAN
- DEN
1 stop6h 12m
Delta
Sun 10/256:35 am
DEN
- SAN
1 stop4h 42m
Delta
Deal found 7/26![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 7/25. 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 17m
Delta
Mon 9/147:55 pm
DEN
- SAN
1 stop4h 52m
Delta
Deal found 7/25![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/226:20 am
SAN
- DEN
1 stop7h 02m
United Airlines
Sat 8/227:25 pm
DEN
- SAN
1 stop6h 04m
United Airlines
Deal found 7/26![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 7/28. 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.
Sat 9/512:10 pm
SAN
- DEN
2 stops5h 25m
Southwest
Mon 9/76:40 am
DEN
- SAN
1 stop4h 40m
Southwest
Deal found 7/28![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 7/27. 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 8/265:01 pm
SAN
- DEN
1 stop4h 54m
Delta
Sun 8/306:28 pm
DEN
- SAN
2 stops6h 26m
Delta
Deal found 7/27![Delta logo]()
$801
This Delta deal was found by Cheapflights users on 7/26. 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 8/299:46 am
SAN
- DEN
1 stop4h 16m
Delta
Sun 8/306:28 pm
DEN
- SAN
2 stops6h 26m
Delta
Deal found 7/26![Delta logo]()
$801
Last-minute flights from San Diego to Fort CollinsDiscover last-minute flight deals from San Diego to Fort Collins. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Fort Collins. Data last updated July 29, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 7/24. 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 8/64:28 pm
SAN
- DEN
1 stop4h 21m
Frontier
Fri 8/1410:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 7/24![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 8/64:28 pm
SAN
- DEN
1 stop4h 21m
Frontier
Sat 8/229:15 am
DEN
- SAN
1 stop12h 00m
Frontier
Deal found 7/26![Frontier logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 7/24. 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 8/74:28 pm
SAN
- DEN
1 stop4h 21m
Frontier
Sat 8/1510:29 pm
DEN
- SAN
Nonstop2h 22m
Frontier
Deal found 7/24![Frontier logo]()
$231
This Cheapflightsfares deal was found by Cheapflights users on 7/24. 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 8/77:45 pm
SAN
- DEN
1 stop25h 04m
Frontier
Sun 8/96:45 am
DEN
- SAN
1 stop9h 58m
Frontier
Deal found 7/24![Frontier logo]()
$284
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 July 29, 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 July 29, 2026.
This Southwest deal was found by Cheapflights users on 7/27. 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.
Wed 9/91:40 pm
SAN
- DEN
Nonstop2h 25m
Southwest
Deal found 7/27![Southwest logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/246:25 am
SAN
- DEN
2 stops10h 35m
Frontier
Deal found 7/27![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/206:25 am
SAN
- DEN
2 stops14h 16m
Frontier
Deal found 7/25![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/296:25 am
SAN
- DEN
2 stops14h 16m
Frontier
Deal found 7/27![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 7/25. 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.
Sat 8/223:45 pm
SAN
- DEN
Nonstop2h 35m
Frontier
Deal found 7/25![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/236:25 am
SAN
- DEN
1 stop28h 08m
Frontier
Deal found 7/25![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Fri 9/187:04 pm
SAN
- DEN
1 stop13h 39m
Frontier
Deal found 7/27![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 7/28. 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 8/213:45 pm
SAN
- DEN
Nonstop2h 35m
Frontier
Deal found 7/28![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/178:51 pm
SAN
- DEN
2 stops24h 02m
Frontier
Deal found 7/27![Frontier logo]()
$102
This Trip.com deal was found by Cheapflights users on 7/27. 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.
Thu 9/179:03 pm
SAN
- DEN
1 stop16h 57m
Frontier
Deal found 7/27![Frontier logo]()
$103
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 July 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (Southwest) |
One-way from | $89 (Southwest) |
Popular in | June |
Cheapest in | February |
Average price | $262 |
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 July 29, 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
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Tue 9/29
7:25 am-12:40 pm
1 stop4h 15m
Denver Intl
Tue 10/6
6:55 pm-10:05 pm
1 stop4h 10m
$197
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Tue 9/29
5:01 pm-10:40 pm
1 stop4h 39m
Denver Intl
Sat 10/3
10:45 am-3:56 pm
1 stop6h 11m
$207
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Thu 9/24
10:54 am-6:11 pm
1 stop6h 17m
Denver Intl
Sat 10/3
1:00 pm-3:56 pm
1 stop3h 56m
$217
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Fri 10/23
10:57 am-6:09 pm
1 stop6h 12m
Denver Intl
Sun 10/25
6:35 am-10:17 am
1 stop4h 42m
$217
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Wed 9/9
10:54 am-6:11 pm
1 stop6h 17m
Denver Intl
Mon 9/14
7:55 pm-11:47 pm
1 stop4h 52m
$217
Quickest round-trip
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Sat 9/5
12:33 pm-4:06 pm
Nonstop2h 33m
Denver Intl
Mon 9/7
7:43 am-9:05 am
Nonstop2h 22m
$257
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Sat 8/22
6:20 am-2:22 pm
1 stop7h 02m
Denver Intl
Sat 8/22
7:25 pm-12:29 am
1 stop6h 04m
$292
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Sat 9/5
12:10 pm-6:35 pm
2 stops5h 25m
Denver Intl
Mon 9/7
6:40 am-10:20 am
1 stop4h 40m
$312
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Wed 9/2
11:06 am-6:32 pm
1 stop6h 26m
Denver Intl
Tue 9/8
8:08 am-6:37 pm
2 stops11h 29m
$470
San DiegoDenver
SAN - DEN
SANDEN
San Diego
Wed 8/26
5:01 pm-10:55 pm
1 stop4h 54m
Denver Intl
Sun 8/30
6:28 pm-11:54 pm
2 stops6h 26m
$801
Showing 1-10 of 22 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 July 29, 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 26% 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 July 29, 2026.
The most flights from SAN to FC9 are scheduled on a Monday (34 on average). You will have fewer flight options on Saturday, 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 $159 and $270 in August.The cheapest round-trip price found within the last 5 days was $157 on Frontier (Aug 18-Aug 19).
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 July 25, 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. 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 July 29, 2026.
Read through reviews of airlines operating flights from San Diego to Fort Collins, such as Southwest,Alaska Airlines, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Boarding
8.1
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.
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 San Diego
Popular flights
Top destinations
Alternative routes for San Diego to Fort Collins
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Fort Collins by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Fort Collins by cabin class
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 July 29, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on July 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Diego to Fort Collins flights
Consider these flights traveling from San Diego to Fort Collins.
Top 5 airlines flying from San Diego to Fort Collins
Discover the top 5 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 2,558,603 searches. Data last updated July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$47 | Average$142 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$58 | Average$137 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$115 | Average$207 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$117 | Average$238 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$276 | FlexibilityNo cancel fee | On-time69% |