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£433+ Cheap flights to Fort Collins

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Fort Collins in 2025

Enter your travel dates to find the best prices.

Cheapest flights to Fort Collins
Explore the most affordable flight options available to Fort Collins. Find the lowest fares based on data from user searches, with prices last updated on 26 December 2025.

Tue 30/1212:25LHR - DEN
Nonstop10h 05mBritish Airways
Tue 10/215:14DEN - LHR
1 stop13h 21mBritish Airways
Deal found 25/12£765
Tue 30/1206:35LHR - DEN
1 stop15h 00mMultiple Airlines
Tue 10/208:05DEN - LHR
1 stop20h 45mMultiple Airlines
Deal found 25/12£796
Tue 30/1212:25LHR - DEN
Nonstop10h 05mAmerican Airlines
Tue 10/217:25DEN - LHR
Nonstop9h 10mAmerican Airlines
Deal found 25/12£797
Mon 29/1220:15LHR - DEN
1 stop25h 20mLufthansa
Wed 29/420:20DEN - LHR
Nonstop9h 00mLufthansa
Deal found 24/12£821
Mon 29/1212:25LHR - DEN
Nonstop10h 05mAer Lingus
Wed 29/414:22DEN - LHR
2 stops15h 18mAer Lingus
Deal found 24/12£827
Mon 29/1213:45LHR - DEN
2 stops37h 10mAir Canada
Wed 29/411:05DEN - LHR
2 stops26h 55mAir Canada
Deal found 24/12£834
Wed 31/1209:20LHR - DEN
1 stop14h 32mJetBlue
Mon 5/123:59DEN - LHR
1 stop14h 41mJetBlue
Deal found 26/12£842
Wed 24/1212:20LHR - DEN
1 stop17h 39mJetBlue
Sat 31/111:35DEN - LHR
1 stop14h 55mJetBlue
Deal found 24/12£855
Tue 30/1211:45LHR - DEN
2 stops17h 48mDelta
Tue 10/211:17DEN - LHR
2 stops14h 28mDelta
Deal found 25/12£862
Wed 31/1211:35LHR - DEN
Nonstop9h 50mLufthansa
Mon 5/117:50DEN - LHR
1 stop19h 45mLufthansa
Deal found 26/12£866
Tue 30/1213:00LGW - DEN
1 stop37h 09mMultiple Airlines
Mon 9/200:59DEN - LGW
2 stops22h 01mMultiple Airlines
Deal found 25/12£875
Tue 30/1210:00LCY - DEN
2 stops19h 46mKLM
Tue 10/206:41DEN - LCY
2 stops18h 29mKLM
Deal found 25/12£896

Find flight deals to Fort Collins

Find the latest flights to Fort Collins in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 26 December 2025.

Return from

£498

One-way from

£433

Popular in

December

Cheapest in

September

Average price

£708
British Airways
  • British Airways
  • 15/1-19/3
  • 4 total stops
  • 62h 24m total
  • London to Denver
Search Deals
25/5
  • 25/5
  • 3 total stops
  • 45h 45m total
  • London to Fort Collins
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£4 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Locate flights to Fort Collins that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 26 December 2025.
Use the filters below to find and compare flights to Fort Collins that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonDenver

LCY - DEN

LCYDEN

London City

Thu 15/1

08:40-22:24

2 stops20h 44m

Denver Intl

Thu 19/3

09:10-08:50

2 stops41h 40m

£498

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sun 12/4

14:50-17:45

Nonstop9h 55m

Denver Intl

Thu 23/4

20:20-12:20

Nonstop9h 00m

£498

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sat 11/4

13:35-16:30

Nonstop9h 55m

Denver Intl

Thu 23/4

12:54-08:05

1 stop12h 11m

£505

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sun 12/4

13:35-16:30

Nonstop9h 55m

Denver Intl

Wed 22/4

12:54-14:25

1 stop18h 31m

£505

LondonDenver

LCY - DEN

LCYDEN

London City

Wed 7/1

15:30-22:24

2 stops37h 54m

Denver Intl

Wed 14/1

08:44-14:05

2 stops22h 21m

£511

LondonDenver

LCY - DEN

LCYDEN

London City

Tue 3/2

10:00-22:46

2 stops19h 46m

Denver Intl

Wed 6/5

06:40-16:40

2 stops27h 00m

£511

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 11/5

16:10-22:19

2 stops37h 09m

Denver Intl

Sat 16/5

14:22-10:30

2 stops37h 08m

£513

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 14/5

07:30-22:19

2 stops21h 49m

Denver Intl

Sat 16/5

14:22-10:30

2 stops37h 08m

£513

LondonDenver

LCY - DEN

LCYDEN

London City

Fri 16/1

07:50-22:24

2 stops21h 34m

Denver Intl

Wed 21/1

10:45-14:05

2 stops20h 20m

£518

LondonDenver

LCY - DEN

LCYDEN

London City

Thu 15/1

18:15-14:35

2 stops27h 20m

Denver Intl

Thu 19/3

16:55-17:40

1 stop18h 45m

£520

Flights are sorted by cheapest return flights first.

Deals found on 25/12

Showing 1-10 of 60 results
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Best time to book a flight to Fort Collins

Have a flexible travel schedule? Discover the best time to fly to Fort Collins with our price prediction graph.
Estimated return 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 to Fort Collins

When is the best time to book a flight to Fort Collins?

Use this chart to determine the optimal time to book a return flight from London to Fort Collins. Price data was last updated on 19 December 2025.

To ensure you get the cheapest price possible for a flight to Fort Collins, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to Fort Collins?

On average, a flight from London to Fort Collins takes 16 hours 28 minutes. Flights to Fort Collins from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Fort Collins?

Use this chart to determine the cheapest time to fly return from London to Fort Collins. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Fort Collins should consider flying on Thursday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Wednesday evenings, when prices are usually at their highest.

Weekly flight availability to Fort Collins

The most flights from London to Fort Collins are scheduled on a Monday (11 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

What are the most popular airlines that fly to Fort Collins?

The most popular airlines flying from London to Fort Collins are British Airways, Lufthansa and United Airlines.

British Airways
British Airways
From £425
Lufthansa
Lufthansa
From £398
Icelandair
Icelandair
From £354
United Airlines
United Airlines
From £336

What are the cheapest airlines that fly to Fort Collins?

The cheapest airlines flying from London to Fort Collins are Icelandair, Air Canada and Aer Lingus.

Rainfall in Fort Collins by month

Plan your trip to Fort Collins by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Fort Collins ranges from 13.0 - 58.0 inches per month. May is typically the wettest month, when rainfall can reach 58.0 mm. January is typically the driest time to visit Fort Collins when rainfall is around 13.0 mm.

Temperature in Fort Collins by month

Plan your trip to Fort Collins by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Fort Collins, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

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 26 December 2025.
See what other customers who have flown with Austrian Airlines, United Airlines, andIcelandair to the United States have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
884 reviews
Check prices

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Austrian Airlines
7.6
Good
884 reviews
Austrian Airlines
7.6
Good
884 reviews
Check prices

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
United Airlines
7.4
Good
9,115 reviews
Austrian Airlines
7.6
Good
884 reviews
Check prices

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Icelandair
7.0
Good
592 reviews
Austrian Airlines
7.6
Good
884 reviews
Check prices

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Lufthansa
6.8
Okay
7,655 reviews
Austrian Airlines
7.6
Good
884 reviews
Check prices

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
British Airways
6.7
Okay
7,617 reviews
Austrian Airlines
7.6
Good
884 reviews
Check prices

Entertainment

6.8

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

FAQs about flying to Fort Collins

  • Can I find cheaper flights to Fort Collins if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Fort Collins on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Fort Collins?

    Based on reviews from Cheapflights users, Delta is rated the highest out of the airlines that fly to Fort Collins.

  • How much is a return flight to Fort Collins?

    A return flight to Fort Collins will typically cost around £368, however they can be found for as little as £60.

  • Where does the fastest flight to Fort Collins depart from?

    For those looking to save time traveling to Fort Collins, London offers the quickest one-way flight (9 hours 50 minutes).

  • Does Denver Intl have car hire?

    Yes. Those touching down at Denver Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Denver Intl?

    Yes. Denver Intl has hotels nearby for those requiring accommodations. The Westin Denver International Airport is the closest property to Denver Intl (0.0 mi away from Denver Intl).

See more FAQs

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Millions of users choose and trust Cheapflights to book the best flight deals to Fort Collins for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights to Fort Collins with no change fees?

Certainly. Search results for flights to Fort Collins shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights to Fort Collins become cheaper?

Yes, Cheapflights offers price alerts on Fort Collins flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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