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£401+ 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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
2 Jan — 9 Jan1
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 3 December 2025.

Thu 11/1211:35LHR - DEN
Nonstop9h 50mAustrian Airlines
Thu 25/1217:35DEN - LHR
Nonstop9h 05mAustrian Airlines
Deal found 1/12£522
Wed 17/1213:25LHR - DEN
1 stop13h 30mAir Canada
Mon 12/111:15DEN - LHR
1 stop12h 55mAir Canada
Deal found 1/12£531
Mon 8/1212:35LHR - DEN
1 stop30h 08mIberia
Sat 13/1217:30DEN - LHR
1 stop31h 45mIberia
Deal found 1/12£537
Wed 10/1211:55LHR - DEN
1 stop15h 22mIberia
Wed 17/1207:26DEN - LHR
1 stop17h 49mIberia
Deal found 2/12£542
Wed 10/1220:35LHR - DEN
1 stop28h 30mIcelandair
Wed 7/115:40DEN - LHR
1 stop12h 10mIcelandair
Deal found 1/12£545
Wed 10/1211:35LHR - DEN
Nonstop9h 50mMultiple Airlines
Thu 25/1217:35DEN - LHR
Nonstop9h 05mMultiple Airlines
Deal found 2/12£572
Fri 26/1209:55LHR - DEN
1 stop19h 36mAmerican Airlines
Tue 13/112:28DEN - LHR
1 stop12h 47mAmerican Airlines
Deal found 2/12£572
Wed 10/1210:15LHR - DEN
1 stop14h 31mBritish Airways
Wed 7/117:25DEN - LHR
Nonstop9h 10mBritish Airways
Deal found 1/12£574
Wed 10/1212:25LHR - DEN
Nonstop10h 05mBritish Airways
Wed 17/1208:10DEN - LHR
1 stop15h 40mBritish Airways
Deal found 2/12£582
Wed 10/1212:25LHR - DEN
Nonstop10h 05mAmerican Airlines
Wed 7/117:25DEN - LHR
Nonstop9h 10mAmerican Airlines
Deal found 1/12£588
Tue 30/1209:35LHR - DEN
2 stops17h 36mAmerican Airlines
Tue 13/108:44DEN - LHR
1 stop15h 06mAmerican Airlines
Deal found 2/12£594
Wed 10/1207:15LCY - DEN
2 stops22h 50mBritish Airways
Wed 17/1211:51DEN - LCY
2 stops21h 34mBritish Airways
Deal found 2/12£605

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 3 December 2025.

Return from

£496

One-way from

£401

Popular in

December

Cheapest in

September

Average price

£697
Lufthansa
  • Lufthansa
  • 6/5-15/5
  • 2 total stops
  • 42h 55m total
  • London to Denver
Search Deals
JetBlue
  • JetBlue
  • 25/3
  • 1 total stop
  • 18h 24m total
  • London to Fort Collins
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£11 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 3 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

Mon 26/1

09:15-19:55

2 stops17h 40m

Denver Intl

Thu 19/2

11:15-09:20

2 stops15h 05m

£532

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sat 9/5

11:25-14:15

Nonstop9h 50m

Denver Intl

Sun 10/5

20:20-12:20

Nonstop9h 00m

£534

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 30/3

11:25-14:15

Nonstop9h 50m

Denver Intl

Sun 12/4

20:20-12:20

Nonstop9h 00m

£536

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 29/5

11:25-14:05

Nonstop9h 40m

Denver Intl

Sat 13/6

10:40-10:00

1 stop16h 20m

£537

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 30/3

11:25-14:15

Nonstop9h 50m

Denver Intl

Sun 12/4

11:05-06:30

1 stop12h 25m

£538

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 7/5

11:25-14:15

Nonstop9h 50m

Denver Intl

Wed 13/5

17:30-11:50

1 stop11h 20m

£539

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Sat 9/5

11:25-14:15

Nonstop9h 50m

Denver Intl

Wed 13/5

17:30-11:50

1 stop11h 20m

£539

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 28/5

11:25-14:05

Nonstop9h 40m

Denver Intl

Wed 10/6

07:45-06:35

1 stop15h 50m

£539

LondonDenver

LCY - DEN

LCYDEN

London City

Thu 22/1

18:15-16:34

2 stops29h 19m

Denver Intl

Sun 25/1

15:55-17:40

1 stop18h 45m

£540

LondonDenver

LCY - DEN

LCYDEN

London City

Wed 4/2

07:50-14:14

2 stops37h 24m

Denver Intl

Sun 8/3

17:58-14:35

2 stops38h 37m

£542

Flights are sorted by cheapest return flights first.

Deals found on 1/12

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 28 November 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 14 hours 53 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 Monday, which is when the least amount of flights are scheduled (11 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 £436
Lufthansa
Lufthansa
From £408
Icelandair
Icelandair
From £361
United Airlines
United Airlines
From £344

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 3 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
875 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Austrian Airlines
7.6
Good
875 reviews
Austrian Airlines
7.6
Good
875 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
United Airlines
7.4
Good
9,063 reviews
Austrian Airlines
7.6
Good
875 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Icelandair
7.0
Good
584 reviews
Austrian Airlines
7.6
Good
875 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Lufthansa
6.8
Okay
7,603 reviews
Austrian Airlines
7.6
Good
875 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
British Airways
6.7
Okay
7,550 reviews
Austrian Airlines
7.6
Good
875 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the 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 £113, 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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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?

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