Low season | March |
---|---|
High season | July |
Cheapest flight | £372 |
Find which airlines fly direct from London Heathrow Airport to Denver Intl Airport, which days they fly and book direct flights.
Direct departures
Monday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Tuesday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Wednesday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Thursday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Friday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Saturday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Sunday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Direct returns
Monday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Tuesday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Wednesday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Thursday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Friday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Saturday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Sunday
Aer Lingus, Air Canada, American Airlines, +8 more
Aer Lingus, Air Canada, +9 more
7
8
Food was very ordinary for premium economy, very small portions.
Food was very ordinary for premium economy, very small portions.
i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.
There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.
Our previous flight was delayed but they waited for us to board.
Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.
My American Airlines flight was deleted and you guys never let me know
The entertainment system did not work. And we waited 45 minutes in our seats after we landed before we got to the gate
It was a pleasure definitely going with Iberia on my future travels
Our connecting flight was cancelled and it took us 15 hours to reach our destination.
This has been the worst experiencia I have had traveling overall. More than 3 delays, no one answering questions, no one at the AA counter. No one at customer service and after having to change transportation to airport and spend the night at a hotel paid by me, we were delayed inside of aircraft for more than 2 hours!!! Bad experience!!!
The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.
I was at the back of the plane with earphones, and I could still hear the chatty flight attendants; I wasn't able to sleep at all.
Flight was 3 1/2 hour delayed with no credit or meal vouchers
United airlines was top for my last trip in every way
late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.
Horrible; seating was atrocious - inadequate leg room and seat width tight even for a small individual. Profits shouldn’t be everything!
Liked that we left on time for each flight. Snacks not the best, but we're okay.
It was fine. The flight attendant appeared to be in a bad mood but everything was fine.
Pleasant service from the crew. Arrived early. Efficient boarding and deplaning. Great job!
Everything was perfect except the pad at the top of the seat back. It pushes my head forward in a very uncomfortable position and it is not removable.
One of the worst airlines I ever flew. Boarding is a disaster, they are always late, the planes are overly crowded. Everyone on my flight lost their connection because they were 2h late. Reykjavik is also not the best airport out there.
Everything was great! My only critique is 25 euro for wifi is wild, but I get it
Good, but I feel there should be a separate boarding line for seniors
Plane left an hour late and missed our connecting flight. Your service center was closed ao Alaska Airlines could not change the ticket. Thus we missed the chance to get out that night to San Jose. This is a major operational blunder.
Well! They got me as far as Iceland, let me wait around at the airport since my next flight had either left or canceled, finally gave me my luggage, and sent me to wait quite some time with seven other people for a ride to a hotel. At the hotel we got a chef's salad, a nice room for the night which unfortunately had feather pillows and duvet (allergies), a really great and spectacular buffet for breakfast (small but stunning), taxis back to the airport for the 9:30 Delta flight back to Minneapolis. The Delta flight has free food and liquor included which Icelandair does not. All in all, it falls far short of my worst ever United flight to SGN. Icelandair did change my reservation after my roommate tested positive for COVID and we canceled our plans to travel around Iceland, but the charges were fairly hefty. I had trouble contact Kayak's agents to discuss changing my reservations and finally contacted Icelandair who changed them. (I used their contact form and put in several requests for call backs.) Of course, they called just after I made the change with Icelandair.
never seen an international flight , over 5 hours that had no food provided. we flew from iceland to vancouver, no food, no even a snack. For entertainment you had to buy the headphones which are normally also provided for free on any other airlines.
Flight was delayed. They did a terrible job rebooking me. Agent on the ground was useless. The partner airline who ran the plane was able to help me but Iceland air was useless
did internet check in but still had to get checked in at the counter and this was not the first time. Bummer!
We had to be bussed to the plane. And it was raining. Not a pleasant experience.
The seats are very close to one another and it is a bit uncomfortable, especially since I was in a middle seat.
Great crew dealing with the most unprepared family with a million kids and zero sense.
We were disappointed not to be able to buy out preferred seat from date of my original booking, which was about 40 days before the trip. When we arrived in Hannover on the Oct 10 I tried every day and the weed site said I have to wait until ck in, did that and still was not able to. Get to the airport and out seats were separate from each other. The crew was able to get seats together, was not the most comfortable. Don’t understand why this happened.
Actual flight was smooth but we were delayed 70 minutes. Were promised to make it up to us but were given no refreshments
I had handicap and pre board due to a recent broken arm, was made to find my own help placing carry on baggage in the storage above. My tv and entertainment unit did not work correctly, requested help and it took 30 minutes to get help, she did not fix it or come back to see if it was fixed. I went to her a second time and she did another reset, still did not fix.
Did not fly HOU to SAT as flight was cancelled.
Did not fly to Houston as original flight was cancelled.
Not good. They charged an additional $70 to check a bag we had already paid for on line with Lufstansa
This flight went smoothly and the economy plus free upgrade worked very well.
The hot towels before the second meal was an unexpected surprise. The crew was attentive and personable, and that’s a lot on a nine hour flight. And the hot pretzels were a kind of “auf wiedersehn “ to Germany.
Upgraded to business class and it was worth every dollar! The connection in Denver was way too tight time wise and going through customs there plus re-visiting security screen again caused me to miss my connecting flight. KAYAK should not allow that tight of connection on international flights.
The seats of the Boeing 787-10 Dreamliner were ridiculously uncomfortable. I was on 10 flights during this vacation and this plane was super uncomfortable both times I was on one whereas all of the others were perfectly fine. Additionally, these planes do not have any air vents that passengers can control, the climate is entirely controlled by the crew which made for an extremely uncomfortable temperature for the duration. The flight attendants tried to make everyone happy with the temperature but several people you could tell were excessively warm and just wanted a bit of airflow.
Don't fly thru London Awful and huge U need 4 hrs to transfer cuz u have to tale buses to and fro from airplanes Bad business
Staff with low service level, forgetful. Temperature at 15 C and after asking twice to raise the temperature the crew did nothing.
They had about 20-25 people overbooked. Including me. Why is this?? I was put on a flight to NC an hour later with a 4 hour layover. I was supposed to be home at 1045am instead i was home at 7:30pm. An extra day to pay for dog care.
Boarding is not controlled as groups called was not enforced
Horrible food and uncomfortable plane. One toilet was out of service.
Business class is fantastic! Lie flat seats, great meals, privacy, and lots of nice amenities!
Flight to Seattle was fine. We were delayed getting into our gate. The connection time was short and they make you go through security again which was slow.
The crew was great, the food was great, the seats were torture. I just could not get comfortable. Too narrow, too close to the seat in front. I felt guilty about reclining my seat and resisted but the people in front of me did not feel the same way. I thought both coming and going that the discomfort would conceivably be enough to prevent me from going abroad in the future. Will it? I'm not sure - but it will definitely be a factor in my choice of travel.
Food was pretty good and crew did ok. Boarding was a disaster. Seats and leg room were not conducive to a comfortable flight, especially if you are 6’3” and have the person in front of you leaning their chair all the way back for 9 hours and your are told they are allowed to do that.
Cheapest flights to Denver from London found in 2024 and 2025