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Colorado to London Flight Information

Flights Arrive in London
Flights Depart from Colorado
Flight Price $464
Airlines Brussels Airlines, Lufthansa, Air Canada, American Airlines, Delta, British Airways, Norwegian, Norwegian Air UK, Icelandair, SWISS

Book cheap flights from Colorado to London (round-trip)

Airports
Origin
Denver
$464
only
$464
Destination
London
$464
only
$464
$472
only
$472
$513
only
$513
Wed, Oct 9
DEN
Denver Intl
LTN
London Luton
15h 15m
Wed, Oct 16
LTN
London Luton
DEN
Denver Intl
19h 10m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Oct 7
DEN
Denver Intl
LHR
London Heathrow
9h 05m
Wed, Nov 6
LHR
London Heathrow
DEN
Denver Intl
19h 13m
Trip: 31 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 2,093 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.6
Entertainment
6.4
Food
6.4
BRU
LIS
Good 7.3

Cons: Bus navette between thé flights

BRU
EVN
Mediocre 2.0

Pros: It was on time

Cons: The flight was long and inexpect s to be fed. They didn’t provide free food and beverages.

JFK
BRU
Good 6.6

Pros: Attentive helpful and cheerful staff: on time

Cons: Food

BUD
BRU
Excellent 10.0

Pros: The seats were wide tall and comfortable, there was enough room for the legs as well.

Cons: A little glass of juice would have been nice from the airline.

IAD
BRU
Excellent 9.6

Pros: comfortable leg space

Tue, Oct 1
DEN
Denver Intl
LHR
London Heathrow
9h 05m
Wed, Oct 9
LHR
London Heathrow
DEN
Denver Intl
14h 00m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 25,080 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
AMS
FRA
Okay 5.6

Cons: My luggage did not make it with me.

FRA
TLV
Good 7.3

Pros: Seat was OK

Cons: Good

FRA
ORD
Good 7.6

Pros: Friendly and professional staff, comfortable and on-time flight.

Cons: Clear up-front notification about first checked bag not being included in ticket price. This info did not appear at the time the booking was made. Very frustrating.

SEA
FRA
Good 7.0

Pros: Crew were friendly, boarded promptly

Cons: Food could have been better.

MUC
BOS
Excellent 9.6

Cons: My only suggestion would be to include instructions on how to control the entertainment center and find things such as the headphones in the armrest.

Sun, May 19
DEN
Denver Intl
LHR
London Heathrow
31h 55m
Tue, Jun 4
LHR
London Heathrow
DEN
Denver Intl
16h 38m
Trip: 17 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 23,834 reviews
Overall
7.3
Boarding
7.4
Comfort
7.1
Crew
7.7
Entertainment
6.9
Food
6.5
FLL
YUL
Excellent 8.0

Cons: Improve seat comfort

LHR
YYZ
Good 7.0

Pros: The crew was very accomodating and the entertainment was nice

Cons: It is too crammed on this type of plane. Having three columns of three seats, four seats, and three seats is a bit too much. It seemed this type of plane is going for quantity instead of quality.

LAX
YVR
Okay 4.0

Cons: 2,5 hours delayed. Econ seats are tiny with zero legroom.

AMS
YYZ
Mediocre 3.0

Cons: Screen is slow and outdated. Easy upgrade from one class to another.

PDX
YVR
Good 7.3

Pros: the entertainment and food was good

Cons: our flight attendants were mostly absent -- the other side of the aisle had much more attentive attendants

Wed, Sep 11
DEN
Denver Intl
LHR
London Heathrow
9h 00m
Wed, Sep 18
LHR
London Heathrow
DEN
Denver Intl
9h 50m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 38,352 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.9
Entertainment
6.8
Food
6.7
DFW
ATL
Good 6.0

Cons: I don’t understand the concept of the ability to use your mobile device for entertainment, yet not having a power source to charge your device.

PHX
ELP
Excellent 10.0

Pros: Awesome Customer Service

Cons: Nothing

DFW
FAT
Good 7.0

Pros: Crew was fantastic!

Cons: Go go in flight and in flight video not working for majority of flight.

YYZ
PHL
Excellent 10.0

Pros: The seat was comfortable and the flight attendant was very helpful with all the questions I had, thanks for the wonderful first time flying.

Cons: Nothing give a 10/10

CLT
BWI
Excellent 10.0

Pros: Awesome Customer Service

Cons: Nothing

Tue, Jul 30
DEN
Denver Intl
LHR
London Heathrow
16h 55m
Thu, Aug 22
LHR
London Heathrow
DEN
Denver Intl
17h 45m
Trip: 24 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 24,081 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
DCA
ATL
Excellent 10.0

Pros: Crew was very kind and entertainment was good when available

Cons: WiFi in all flights

PHX
ATL
Good 6.0

Cons: Had to wait for a gate in Sav for 20 minutes and another 20-25 for bags

FLL
ATL
Mediocre 2.0

Pros: There was no flight

Cons: Flight left without notification. This was my dads connecting flight and it was missed, due to delays.

BOS
PHL
Okay 4.0

Pros: The crew was nice, the flight was so short, there was little interaction with them.

Cons: Boarding was a disaster, people didn’t have seats which caused a delay in boarding. It was a mess. The seats were uncomfortable and too small. I know it’s a short flight but it was just too tight in there. The flight was delayed and the communication was all over; the time was constantly changin

DCA
ATL
Good 6.3

Cons: Stop being LATE!!!!

Tue, May 21
DEN
Denver Intl
LGW
London Gatwick
20h 22m
Mon, Jun 3
LGW
London Gatwick
DEN
Denver Intl
32h 08m
Trip: 14 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 20,755 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
LHR
CDG
Mediocre 2.6

Cons: Hard to get over having to recheck our luggage

AMS
LHR
Good 7.2

Pros: On toile.

Cons: We logged 4.1 miles of walking in the airports because of gates and connection flights, baggage and customs.

LHR
PHX
Excellent 10.0

Cons: This flight was run by American Airlines. A new aircraft and a wonderful crew.

LAX
SAN
Mediocre 2.0

Pros: Nothing

Cons: Direct

MAA
LHR
Excellent 10.0

Pros: What can I say about this awesome flight with great crew and a free upgrade? Fan-dabby-dozy-tastic!

Tue, Oct 8
DEN
Denver Intl
LGW
London Gatwick
8h 55m
Thu, Oct 17
LGW
London Gatwick
DEN
Denver Intl
9h 45m
Trip: 10 days
9.1ExcellentShow reviews
Overall 9.1 Excellent
Based on 10 reviews
Boarding
7.0
Comfort
7.0
Crew
7.4
Entertainment
6.9
Food
6.1
LAX
BCN
Good 6.0

Pros: The crew was OK, one lady was excellent. Seats were tight.

Cons: Food was skimpy, Snacks were unavailable, and it was absolutely freezing!

JFK
AMS
Mediocre 2.0

Pros: The price.

Cons: Everything. The service overall is terrible. Experience was nothing to write home about. The attitude of the cabin crew / flight attendants have to be one of the worst in the industry. You get what you pay for.

BCN
EWR
Mediocre 2.0

Pros: Nothing

Cons: I was forced to pay $93 for a carryon that I used with Norwegian 2 weeks before.

CDG
OAK
Mediocre 2.3

Pros: longest wait time, so many crowds, so much chaos

Cons: everything

EWR
FCO
Okay 5.6

Pros: New airplane, seemed clean and well put together.

Cons: I think the tickets should more explicitly advertise which seats include meals or drink service. Was shocked to discover that no water was offered to passengers unless they paid for it separately. Isn't hydration a health concern at high altitudes?

Tue, Sep 24
DEN
Denver Intl
LGW
London Gatwick
8h 55m
Sat, Oct 12
LGW
London Gatwick
DEN
Denver Intl
9h 45m
Trip: 19 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 4 reviews
Boarding
6.3
Comfort
6.3
Crew
6.8
Entertainment
6.5
Food
5.1
ORD
LGW
Mediocre 2.4

Pros: The plane was super nice and new.

Cons: Plane took off 2 hours late while we all sat on the plane with no water. They also ran out of food so there was nothing to eat. The crew sounded like they had no idea what was going on, kept giving these updates— and then going back on what they said earlier. So disorganized and hot on that plane.

MCO
LGW
Mediocre 3.2

Cons: Everything.

JFK
LGW
Good 6.3

Pros: Comfortable seats (787), more-or-less on-time service.

Cons: Probably the unhappiest check-in and flight crew I've flown with. Makes me wonder what Norwegian does to its employees. Be advised that they weigh your carry-on bags, and you may be forced to check them. Basically, add $60 to your ticket price to account for round trip bag fees.

JFK
LGW
Mediocre 3.5

Pros: new plane

Cons: horrible check in and boarding experience

LGW
JFK
Excellent 10.0

Pros: Efficient, quick, well organized

Cons: Nothing really

Tue, Aug 27
DEN
Denver Intl
LGW
London Gatwick
32h 55m
Mon, Sep 30
LGW
London Gatwick
DEN
Denver Intl
12h 35m
Trip: 35 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 8,333 reviews
Overall
7.5
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
AMS
KEF
Good 6.6

Pros: Seat was good, crew friendly, easy boarding

Cons: Newer movies, better sound from media screen, food

CDG
KEF
Excellent 9.6

Pros: When I booked my Economy Light fare from Denver to Paris for $325, I was expecting a trying experience. But to the contrary, I found the entire trip enjoyable. I found the boarding quick and efficient, plus the flight attendants were genuinely friendly and helpful. Connecting in KEF was a delight.

Cons: Short answer: "Nothing". I've travelled extensively around the world and Icelandair is now my favourite low-cost airline. Takk Icelandair.

IAD
KEF
Excellent 8.4

Pros: Paid extra for legroom, but sadly the seat did not recline much due to being in row at the emergency exit

YYZ
KEF
Excellent 10.0

Pros: I like that the flight was very comfortable & there was lots of options for entertainment!

Cons: Honestly it was probably the best flight I have ever taken!

SFO
KEF
Good 6.0

Pros: E ermine was nice. Plane was comfortable

Cons: I didn't know a meal would not be served

Sat, Apr 27
DEN
Denver Intl
LHR
London Heathrow
25h 15m
Mon, Apr 29
LHR
London Heathrow
DEN
Denver Intl
9h 40m
Trip: 3 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 7,997 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
DUS
ZRH
Good 6.3

Cons: The HVAC system was apparently defective and passengers in the mid-section of the plane, myself included, were bundled up in winter jackets and blankets.

MXP
ZRH
Excellent 10.0

Pros: Very short flight so pretty standard.

Cons: The flight attendants and employees at the airport seemed completely miserable. I heard flight attendants telling passengers on multiple occasions that because the flight was short they couldn’t help them.

ZRH
NCE
Excellent 8.0

Pros: Food, crew

Cons: Comfort seats

GVA
JFK
Good 6.3

Cons: There was only one agent checking in business class passengers until a bunch of us complained. The Swiss business lounge is too small with not enough seats

CDG
ZRH
Okay 4.6

Cons: Check in was annoying in Paris as we had to go to ticket counter, and then go to a different counter to pay for luggage. Annoyed in the first place to have to pay for 2 checked bags on international flight, but to have to go into three separate lines in order to do so was pouring salt into a wound.

Mon, Oct 7
DEN
Denver Intl
LHR
London Heathrow
9h 05m
Wed, Nov 6
LHR
London Heathrow
DEN
Denver Intl
19h 13m
Trip: 31 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 2,093 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.6
Entertainment
6.4
Food
6.4
BRU
IAD
Excellent 9.0

Cons: extra taxi in DC

CKY
BJL
Good 6.3

Cons: It was very cold inside the airplane. I have to ask multiple times for blanket.

BRU
AGP
Excellent 10.0

Pros: Very pleased with crew and seats.

BRU
YYZ
Okay 5.3

Cons: Missed my connecting flight from Toronto to Houston. No reason given for late arrival. Yes, they gave me another flight...six hours later! Will be asking for compensation. At least for spending money on airport food. After arriving in Houston, i had already planned on renting a vehicle to my final destination. Because of first delay, i had to drive in the middle of the night and finally arrive at finat destination at 4 am on Oct 5. Im going to bed now.

MAD
BRU
Good 6.4

Cons: There is no entertainment which is ok. You had to pay for everything in flight. Their carry on luggage size allowance is smaller than any airline I’ve ever flown

Mon, Oct 7
DEN
Denver Intl
LTN
London Luton
19h 00m
Wed, Oct 16
LTN
London Luton
DEN
Denver Intl
19h 10m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Aug 13
DEN
Denver Intl
LHR
London Heathrow
9h 05m
Tue, Aug 27
LHR
London Heathrow
DEN
Denver Intl
9h 40m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 25,080 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
ATH
FRA
Good 7.3

Cons: He option to split groups of travellers.

LAX
MUC
Excellent 10.0

Pros: The crew was kind and attentive. The food and complementary drinks were satisfactory. There were many movie and television options.

Cons: The lady next to me got into an argument and no one intervened to defuse it. Not sure what protocol is there. The seats reclined too far into my personal space making me feel uncomfortable.

MUC
YUL
Good 7.6

Pros: Thé entertainment was amazing. I watched a live soccer game

Cons: The space in the plane

LAX
MUC
Excellent 10.0

Pros: Amazing service, the crew the seat was comfortable, the meals exceed my expectations, the movie selection, everything was awesome.

Cons: Can't think of anything..

JFK
MUC
Excellent 9.3

Cons: More tasty food.

Sat, May 18
DEN
Denver Intl
LHR
London Heathrow
31h 50m
Tue, Jun 4
LHR
London Heathrow
DEN
Denver Intl
16h 38m
Trip: 18 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 23,834 reviews
Overall
7.3
Boarding
7.4
Comfort
7.1
Crew
7.7
Entertainment
6.9
Food
6.5
YHZ
YUL
Good 7.3

Pros: Got the seats I wanted, movies were good. Staff was friendly

Cons: In Montreal they took my carry on bag stating it was too big, I have traveled with it many many times and it always fits except the tiny planes, this was a 787. When I got on the plane many people had larger bags then mine and it was the last bag on the carousel at the other end.

YYZ
STL
Excellent 8.0

Pros: Nice crew.

Cons: Would have liked some better movie choices.

YVR
SYD
Excellent 10.0

Pros: Comfortable and a very friendly flight crew.

Cons: Terrible layover in Vancouver. There was not need to make us leave the plan for 3 hours and get back on the same plan

SFO
AMS
Mediocre 2.0

Pros: There was one crew member was passive aggresive and doing his best to annoy the whole trip, I had to get other crew involved, he was hitting on my friend as well.....

Cons: This was a United flight sold as Air Canada to me and Lufthansa to my friend. This made check in twice as long since we went to the wrong counters. The quality was horrendous for an international flight and the entertainment system was broken. I paid atleast 50% more than I should have. Never fly UA

YVR
YOW
Excellent 8.0

Pros: On time, smooth flight, good movie choices

Cons: Cramped seating

Wed, Aug 14
DEN
Denver Intl
LHR
London Heathrow
18h 05m
Wed, Aug 21
LHR
London Heathrow
DEN
Denver Intl
17h 45m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 24,081 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
KIX
HNL
Excellent 8.6

Cons: The pork dinner meal option was burnt … al the way through.

DCA
ATL
Excellent 10.0

Pros: Crew was very kind and entertainment was good when available

Cons: WiFi in all flights

ATL
PHL
Excellent 10.0

Pros: I like flying Delta. Make you feel comfortable and at ease.

BOS
PHL
Okay 4.0

Pros: The crew was nice, the flight was so short, there was little interaction with them.

Cons: Boarding was a disaster, people didn’t have seats which caused a delay in boarding. It was a mess. The seats were uncomfortable and too small. I know it’s a short flight but it was just too tight in there. The flight was delayed and the communication was all over; the time was constantly changin

LGA
ORD
Mediocre 3.0

Pros: Nothing.

Cons: Flight was delayed 2 hours. Even though I had carry on, they checked it and this made me waste my time at baggage claim rather than gate checking. Flight attendants were miserable. Power supply didn’t work at seats.

Tue, May 21
DEN
Denver Intl
LGW
London Gatwick
19h 52m
Tue, May 28
LGW
London Gatwick
DEN
Denver Intl
32h 11m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 20,755 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
EWR
LHR
Good 7.6

Cons: The planes floor plan showed bathrooms which I avoided. But there were none at that spot so we lost out on more comfy seats.

FCO
LHR
Mediocre 3.3

Cons: The flight attendants were awful. Even before the flight had taken off, I watched one hell at a passenger when he couldn’t find his seat

DEN
LHR
Excellent 10.0

Pros: The seats were comfortable

Cons: Everything was ok

BWI
LHR
Excellent 9.2

Pros: Check-in at BWI could not have been nice/more courteous. Great flight and crew!

Cons: We love this BA flight out of BWI.

PRG
LHR
Excellent 9.3

Cons: No online check in, incredibly inconvenient. If is have known would have booked another carrier.

Tue, Sep 17
DEN
Denver Intl
LHR
London Heathrow
11h 55m
Tue, Sep 24
LHR
London Heathrow
DEN
Denver Intl
16h 54m
Trip: 8 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 2,093 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.6
Entertainment
6.4
Food
6.4
CDG
BRU
Excellent 9.6

Pros: Comfort of the plane, service

Cons: No business lounge in CDG before 9am

BRU
LHR
Good 6.0

Pros: This particular flight was parked at the closest bay to immigration at Heathrow. So a late boarding and arrival was made early through not having a mile long walk to passport control.

Cons: Disorganized boarding with the plane load of people huddled around the entrance to the boarding area. No guidance from the crew on how to efficiently pack the overhead bins efficiently with passengers helpless to put their treasures into the overhead bins.

BOM
BRU
Excellent 10.0

Pros: Everything

Cons: NA

MRS
BRU
Excellent 10.0

Pros: The chairs were comfortable the staff was very attentive and nice

Cons: I cant really say anything bad except for the fact that my luggage was broken but i did go to the counter and the person was very nice and handled the issue very proffesionally

ACC
BRU
Excellent 9.3

Pros: Brussels airlines business class seats were the most comfortable I have sat in.

Cons: The United airlines business class seats were too crowded with no privacy. You have to climb over your neighbor to to use the rest room.

Mon, Sep 30
DEN
Denver Intl
LTN
London Luton
15h 15m
Wed, Oct 9
LTN
London Luton
DEN
Denver Intl
19h 10m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Aug 13
DEN
Denver Intl
LHR
London Heathrow
9h 05m
Tue, Aug 27
LHR
London Heathrow
DEN
Denver Intl
9h 40m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 25,080 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
FRA
TLV
Good 7.3

Pros: Seat was OK

Cons: Good

FCO
MUC
Excellent 9.3

Pros: Amazing crew. Took care of people in every possible way and were concerned about their comfort. The food and drinks were above and beyond. Other airline CEO’s should fly Lufthansa and find out what they need to do to impress their customers. side pockets beneath the windows are great to have.

Cons: The only thing I can say is the seating on a long flight needs a little more room. When the person in front lets their seat back it gets to be a little cramped.

FRA
DTW
Mediocre 2.0

Cons: Never happened,missed flight

FRA
JFK
Excellent 9.3

Pros: Nice crew and comfortable seats.

Cons: Not a fan of the sandwich provided.

OKC
IAH
Mediocre 2.0

Pros: I paid to go with Lufthansa airways not with United Airways. And I came to know the day of the flight that I was to board United airways. Really disappointed.

Cons: In the international flight United Airways charge for the Wiskey liquor. And that is ridiculous.

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