$309 Find Cheap Flights from the United Kingdom to Colorado

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Colorado
These are the airlines KAYAK users have selected most often from within our search results for flights to Colorado
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

What is the cheapest flight to Colorado?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Colorado from the United Kingdom found in the last 72 hours was to Denver, at $651 round-trip. The most popular route is London Heathrow Airport (LHR) to Denver (DEN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $651.

What is the cheapest month to fly from the United Kingdom to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United Kingdom to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from the United Kingdom to Colorado is March, when tickets cost $728 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of round-trip tickets is $1,002 and $975 respectively.

How far in advance should I book a flight from the United Kingdom to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from the United Kingdom to Colorado, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Which is the cheapest airport to fly into in Colorado?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Colorado is Denver Intl Airport (DEN), with an average flight price of $854.


Good to know

Low seasonMarch
High seasonSeptember
Cheapest flight$309
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from London Stansted Airport to Denver

FAQs for booking flights from the United Kingdom to Colorado

  • Is DIA convenient for getting to Dinosaur National Monument?

    Dinosaur National Monument is in the north-western corner of the state of Colorado and is about 268 mi from DIA, a drive that takes almost 5h. As an alternative, you could take a connecting flight from DIA to Vernal Airport (VEL) in Utah, which is only 17 mi away from the landmark – less than 30min by car.

  • How do I visit Mesa Verde National Park from DIA?

    Mesa Verde National Park is located in the state’s south-western corner, so after your flight to Colorado you can either take the scenic route and drive 395 mi via US Highway S (about 7h 15min) or get a connecting flight from DIA to Cortez Municipal Airport (CEZ) with Boutique Air. This airport is only 15 mi away from the park by car.

  • How far is Grand Junction from DIA?

    The city of Grand Junction lies due west of Denver and is home to many popular attractions including the Colorado National Monument. It is about 267 mi from DIA if you drive, which should take about 4h 25min via the interstate. There are also flights from DIA to Grand Junction Airport (GJT), but it is usually cheaper to drive there.

  • Where can I exchange local currency at DIA?

    Once you clear immigrations and customs at DIA there are several methods you can use to obtain some US dollars. Worldwide Money Exchange and Western Union operate offices at the airport to facilitate financial transactions and foreign exchange, and there is also a full service branch of Public Service Credit Union if preferred. Of course, ATMs are always available as a further option.

  • How does KAYAK find such low prices on flights from the United Kingdom to Colorado?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from the United Kingdom to Colorado.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from the United Kingdom to Colorado?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United Kingdom to Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from the United Kingdom to Colorado?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from the United Kingdom to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from the United Kingdom to Colorado?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from the United Kingdom to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Colorado?

    Based on KAYAK data, the cheapest day to fly to Colorado is Thursday where round-trip tickets can be as cheap as $819. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $946 on average.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $733 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the evening, which is peak travel time and where the average cost of a ticket is $933.

Top tips for finding a cheap flight out of the United Kingdom

  • Several air carriers including British Airways, Delta and Icelandair offer flights to Colorado from the UK which terminate at Denver International Airport (DEN). The largest airport in the United States, DIA (as it is commonly known) is a focus airport for Southwest Airlines as well as United Airlines.
  • Delta services flights originating in Scotland that depart from Edinburgh Turnhouse Airport (EDI) destined for DIA, but there are stopovers involved in this route. Flights in conjunction with KLM will stop at Amsterdam Schiphol Airport (AMS) and either Salt Lake City Airport (SLC) or Minneapolis-St. Paul International Airport (MSP) before landing in Denver.
  • Meanwhile, flights solely with Delta from Edinburgh Turnhouse Airport will make stopovers first at New York’s JFK Airport. From there, connections to Colorado can be made via Hartsfield-Jackson Atlanta International Airport (ATL), Detroit Metropolitan Wayne County Airport (DTW) or Minneapolis-St. Paul Airport.
  • When it comes to airports in the UK capital, Austrian Airlines, Finnair and British Airways all offer direct flights to Colorado, bound for DIA, from London’s Heathrow Airport (LHR). Lufthansa also offers flights from London Heathrow with a stopover at Frankfurt am Main Airport (FRA) before continuing on to Denver.
  • If you are leaving from Manchester Airport (MAN), you can select between Icelandair and Delta, but neither offers direct flights on this route. Icelandair will first stop at Keflavik International Airport (KEF) before connecting to Denver, while flights aboard Delta will stop first at Charles de Gaulle Airport (CDG) and then at Salt Lake City Airport (SLC).

Reviews of the top 5 airlines serving from the United Kingdom to Colorado

 
See real verified KAYAK customer reviews for airlines flying to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Colorado. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from the United Kingdom to Colorado? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8858 reviews
7.0Entertainment
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

Very rough getting into denver. my kid threw up it was so rough.

4.0 OkayKristin, Jun 2025DSM - DEN
Read more United Airlines reviews

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

One of the crew members hit me with the car and not even says anything

They need to start flying on time. We lost 2 days of our time because they delayed flight both ways.

As always a terrible experience. AA stole a day from my vacation days planned to be spent with my Family. Response: delays related to weather issues.

Even in the premium economy, I found the seats incredibly uncomfortable. I hated that booking through Kayak, it wasn't clear that it was a Level flight, not Iberia. Everything felt cheaply made and not at all worth the airfare we paid.

The flight was over two hours delayed. The aircraft was somewhat dated.

Luggage arrived damaged and protective plastic was lost. I need customer service to contact me or the number for customer service. Thanks.

Provided a good service and I will use it again. Thanks,

Boarding was not well coordinated. I asked twice at the Level check-in area about the MIA flight. At no point did they say the check-in would be at another counter. Fortunately, another passenger was equally confused and got the REAL story from the airport’s info center. Further, my minor child was tagged “SSSS” on their boarding pass. Level should have notified TSA about him being a minor. Instead, the entire family went through the SSSS process, not just our son. When his name was called out at the gate, it was announced in Spanish. No English announcement was made. The food on board was bearable. The crew was adequate, despite not being Level/Iberia crew (Level contracted out our flight to “World2Fly Airlines” - a company I have never heard of!). The onboard entertainment was very limited. They did not even offer a flight tracker option. Nor were music selections offered. Like TAP and Aer Lingus, I will think twice before booking Level ever again.

This ticket was canceled and I did not find out until it was time to check in. I believe the vendor is at fault. Cheap tickets.com I would like to elaborate on the situation to kayak. Can you give me an email address?

You get what you pay for. In general I like the service and flight attendants.

I darted through the Frankfurt airport to make my connecting flight. I asked if it was a possibility to upgrade and the agent did. This was the kindest gesture and it made up for the previous delayed flight and distress/anxiety of anticipating that Zi was going to miss my Frankfurt-Chicago connection. I cannot express my gratitude for the upgrade.. I am 5feet 10 inches do the leg space was amazing.

Good legroom. Attentive crew. Wine quality poor, you can do better

It was freezing. I asked crew member for a blanket and was told it might be in front of plane but I never got one. I turned off all the vents but still froze.

Great experience. Flight was on time and reached destination on time

I meant this flight was not good, the one from Tirana to Frankfurt was better!

Easy checkin. Things went off without a hitch. The the movie selection for the flight wasn’t great, though.

food, movie entertainment upgraded current, interconnecting flights being on time, we have a 24-hour overlay

Exit row seat that cost extra to book had a bad monitor marked as out of order, so clearly something they should have fixed.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Never happened. Flight was delayed. Had to be re rojyed

Economy seats are so small and compacted so close together that comfort is negatively affected, especially on long flights. However that is due to aircraft design, not anything the airline can do about it.

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

Book cheap flights from the United Kingdom to Colorado

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Colorado found on KAYAK in the last 72 hours.
8/28Thu
1 stopIcelandair
34h 15mLGW-DEN
9/4Thu
1 stopIcelandair
32h 35mDEN-LGW
$536
8/26Tue
1 stopIcelandair
12h 55mLGW-DEN
9/2Tue
1 stopIcelandair
15h 00mDEN-LGW
$538
8/25Mon
1 stopLufthansa
13h 20mLHR-DEN
9/13Sat
nonstopLufthansa
9h 05mDEN-LHR
$623
11/5Wed
1 stopBritish Airways
16h 20mMAN-DEN
11/25Tue
2 stopsBritish Airways
16h 37mDEN-MAN
$624
9/15Mon
1 stopLufthansa
13h 20mLHR-DEN
9/29Mon
1 stopLufthansa
14h 00mDEN-LHR
$624
9/24Wed
1 stopBritish Airways
14h 05mMAN-DEN
10/7Tue
2 stopsBritish Airways
17h 10mDEN-MAN
$628
9/5Fri
1 stopUnited Airlines
13h 20mLHR-DEN
9/8Mon
2 stopsUnited Airlines
50h 35mDEN-LHR
$647
9/1Mon
2 stopsUnited Airlines
31h 33mLHR-DEN
9/14Sun
1 stopUnited Airlines
16h 55mDEN-LHR
$648
9/1Mon
2 stopsIberia
38h 02mLCY-DEN
9/14Sun
2 stopsIberia
39h 53mDEN-LCY
$837
8/31Sun
2 stopsIberia
34h 28mLCY-DEN
9/9Tue
2 stopsIberia
42h 43mDEN-LCY
$872

Search by stops

Search by airline

Search by price

Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Colorado found on KAYAK in the last 72 hours.
9/21Sun
3 stops
52h 21mSTN-DEN
$309
9/30Tue
3 stops
50h 16mSTN-DEN
$319
10/16Thu
3 stops
44h 13mSTN-DEN
$337
9/13Sat
1 stopIcelandair
33h 25mLHR-DEN
$550
7/27Sun
2 stopsIcelandair
45h 34mLHR-DEN
$601
9/19Fri
1 stopLufthansa
13h 40mLCY-DEN
$684
9/17Wed
2 stopsLufthansa
20h 14mLCY-DEN
$712
1/4Sun
1 stopBritish Airways
15h 45mMAN-DEN
$870
9/20Sat
2 stopsBritish Airways
20h 40mLCY-DEN
$888
8/17Sun
2 stopsIberia
16h 46mGLA-DEN
$1,279

Search by stops

Search by airline

Search by price

Last minute flights to Colorado

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Colorado that are departing in the next 10 days.
7/17Thu
multi-stopIcelandair
31h 28mLGW-DEN
7/31Thu
multi-stopIcelandair
27h 56mDEN-LGW
$780
7/17Thu
multi-stopIcelandair
31h 28mLGW-DEN
7/21Mon
multi-stopIcelandair
27h 56mDEN-LGW
$815
7/18Fri
multi-stopLufthansa
13h 50mLHR-DEN
8/2Sat
nonstopLufthansa
9h 00mDEN-LHR
$966
7/18Fri
nonstopLufthansa
9h 45mLHR-DEN
8/2Sat
nonstopLufthansa
9h 00mDEN-LHR
$1,005
7/17Thu
multi-stopAustrian Airlines
16h 42mLHR-DEN
7/29Tue
nonstopAustrian Airlines
9h 00mDEN-LHR
$1,035
7/17Thu
multi-stopIberia
14h 19mLHR-DEN
7/29Tue
multi-stopIberia
12h 59mDEN-LHR
$1,073
7/16Wed
multi-stopIberia
14h 19mLHR-DEN
8/1Fri
multi-stopIberia
12h 59mDEN-LHR
$1,103
7/18Fri
nonstopAustrian Airlines
9h 35mLHR-DEN
8/3Sun
nonstopAustrian Airlines
9h 00mDEN-LHR
$1,120
7/15Tue
nonstopBritish Airways
9h 50mLHR-DEN
7/29Tue
nonstopBritish Airways
9h 00mDEN-LHR
$1,211
7/15Tue
nonstopBritish Airways
9h 50mLHR-DEN
8/1Fri
nonstopBritish Airways
9h 00mDEN-LHR
$1,286

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Colorado

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.