Find Cheap Flights from London to Denver International (LON - DEN)

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London to Denver International Flight Information

Avg. Flight Duration 9h 19m
Flights Arrive in Denver International
Flights Depart from London
Flight Price $366
Distance 4,668 miles
Airlines Norwegian Air UK, Icelandair, Air Canada, Lufthansa, British Airways, Brussels Airlines, Finnair

Good to Know

Low Season:
October
Best time to beat the crowds
4%
expected price decrease
High Season:
July
Most popular time to fly
23%
expected price increase
Average Price:
$517
(avg. price over the last 2 weeks)
Good Deal:
$437
or less (round trip)

When to Book Flights from London to Denver International

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $436 or less.
The cheapest flight from London to Denver International was found 52 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is October.
Morning departure is around 61% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking London to Denver International Flights

How long does a flight from London to Denver International take?
An average nonstop flight takes 9h 50m, covering a distance of 4668 miles.
How many flights are there between London and Denver International?
There are 63 (nonstop) flights between London and Denver International per week, averaging 9 per day.
Which airlines provide the cheapest flights from London to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on Norwegian Air UK ($366), Icelandair ($367) and Air Canada ($370).
Do I need a passport to fly between London and Denver International?
Yes.
Which airlines fly most frequently between London and Denver International?
American Airlines (1 times daily), Aer Lingus (1 times daily), Finnair (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly London to Denver International?
For London to Denver International, Saturday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Denver International back to London, the best deals are generally found on Wednesday, with Thursday being the most expensive.

Book cheap flights from London to Denver International (round-trip)

Airports
Origin
London
$367
only
$367
$535
only
$535
$366
only
$366
Destination
Denver
$366
only
$366
Sat, Jan 19
LGW
London Gatwick
DEN
Denver International
9h 50m
Sat, Jan 26
DEN
Denver International
LGW
London Gatwick
8h 40m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 30 reviews
Boarding
5.9
Comfort
6.1
Crew
6.4
Entertainment
6.1
Food
5.1
BOS
LGW
Mediocre 3.0

Cons: Very disappointed in my first longhaul flight on Norwegian Air. Check in staff at Boston was snarly, the food was very average, and the leg room in economy was the least I've ever experienced on an international flight. I am 5 foot three and I do not understand how anyone even a few inches taller than me would not be in imminent danger of developing a blood clot. Horrible. This is a Dreamliner? I only had nightmares.

LGW
JFK
Excellent 10.0

Pros: Efficient, quick, well organized

Cons: Nothing really

JFK
LGW
Mediocre 3.5

Pros: new plane

Cons: horrible check in and boarding experience

LGW
JFK
Mediocre 2.0

Cons: Our flight was suppose to be at 5:10pm. It was cancelled around 10-11pm. Thankfully they were considerate of the fact that I had an infant and found accommodation for us until the next morning, but they were telling passengers at 1am to figure out where to stay until the next flight. Oo and although we knew the flight was cancelled the hassle of getting our bags and going through customs again we didn’t get to our hotel until 2:45am. Most of the staff seemed rude , but that could be because their answer for everything was a sharp “I don’t know”. I can only remember two names of the staff members that were great and put me slightly at ease during this horrible ordeal. Sandy and Suzie were kind and tried to give the best answers they could to the passengers. The flight back was on a Privilege aircraft though Norwegian. The flight attendants were amazing and much more leg room than the newer Norwegian aircraft.

JFK
LGW
Good 6.0

Pros: Excellent enteraintment

Cons: Delayed flight and no food no water and less comfortable seats.

Thu, Jan 17
LHR
London Heathrow
DEN
Denver International
12h 55m
Thu, Mar 7
DEN
Denver International
LHR
London Heathrow
20h 55m
Trip: 50 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 7,986 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
KEF
SFO
Good 6.6

Pros: The crew

Cons: The boarding process was so chaotic at Iceland airport. Also for a 8hr flight food should be given not charged. The movie selection good have been better.

SFO
KEF
Good 6.6

Pros: Clean flight on time and short route

Cons: First time I had a transatlantic flight where there were zero meals or snacks

KEF
SFO
Good 7.6

Pros: Smooth on time flight...helpful responsive crew. Loce watching movies!

Cons: Food was not great...economy seats tight especially when the person in front of you puts their seat back and are essentially sleeping on you lap. This happened to me coming and going....

DEN
KEF
Okay 4.0

Pros: I’m usually easy to please but there wasn’t much to say that’s positive. Maybe the staff was helpful?

Cons: Air was out in coach so everyone was sweating in a sauna, while first class was cold and didn’t want the air any higher, major problem, needed to sleep but could get 15 min in. Worst flight I’ve ever been on, never been that uncomfortable in the air before

KEF
IAD
Excellent 10.0

Pros: The calmness of the staff during the 3-hour delay due to dangerous winds

Cons: The hash winds that nearly swept us off of the steps while deplaning.

Mon, Apr 15
LHR
London Heathrow
DEN
Denver International
29h 13m
Tue, Apr 30
DEN
Denver International
LHR
London Heathrow
9h 00m
Trip: 16 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 23,234 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
LAX
YVR
Okay 4.3

Cons: Compared to other airlines Air Canada is just so bad. Crew are always slow. The flight never boards on time or leaves on time. I don’t think I’ve ever been on an Air Canada flight that leaves on time. It’s incredibly frustrating. The staff were rude and cold on this flight and very very slow. I usually don’t write reviews like this but honestly can’t find anything good to say about this last flight. It was just bad.

YVR
YEG
Excellent 10.0

Pros: They have the best blankets! I always get cold but the blankets are nice and thick. The entertainment system was easy to use with a wide variety to choose from. The seats are comfortable and easy to sleep in. Overall just a great comfortable trip!

YYZ
YVR
Okay 4.0

Cons: Terrible seating and washrooms.

YVR
SFO
Mediocre 2.0

Pros: Absolutely nothing horrible flight

Cons: We were delayed 1hour and 45 minutes leaving Vancouver. As a result we missed our flight to Tokyo. We were promised by the flight attendant that our flights would be rebooked upon arrival in SAN Francisco and they were not.

YVR
YYZ
Okay 4.6

Pros: The staff was nice and food was pretty good

Cons: The plane left ans hour late. The captain said it was to load ciffee on board. I was at yhe airport very early and that plane was sitting at the gate for at least two hours begire take off. There is no excuse fir the coffee not to be aboard. I was sitting in the front row in premium economy. The aet uo for TV screens in that row is awful

Thu, May 2
LHR
London Heathrow
DEN
Denver International
13h 05m
Sun, May 12
DEN
Denver International
LHR
London Heathrow
21h 50m
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,712 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
BOS
FRA
Mediocre 2.0

Pros: I have never been treated so poorly by counter people in my life!

Cons: After 2 hour delay, the flight was cancelled. NO ONE helped to find another flight. After waiting in line for 2 hours, the ticket agent handed me a card and said I had to call the 800 number. The person on the phone said I had to talk to ticket agent to go standby on a flight to Munich and the ticket agent told me I had to call. I was caught in a loop and no one helped. Then when it became apparent I wasn't getting out that night I was informed that there were no hotel vouchers and I would have to find my own hotel! After searching for an hour for a hotel (all were sold out in Boston) I called a friend who lives outside of Boston. No one gave me a taxi voucher because it was not to a hotel. LUFTHANSA customer service is the WORST!!!!!!!!

LHR
MUC
Excellent 8.4

Pros: Everything was on time and efficient.

MUC
DEN
Excellent 9.0

Pros: Loved the German touches like real silverware, good wine, and German movies with English subtitles! Also appreciated lots of liquids and never had to go searching for hydration.

Cons: Everything was great until we landed and I stood up in the aisle. A woman two rows behind opened the overhead compartment and pulled her huge backpack out, landing it right on my head! OUCH! I scolded her and she apologized, but, REALLY? Perhaps the crew needs to reiterate how dangerous this is to do! My head still hurts a little on top, almost a week later. Ugh.

LYS
MUC
Okay 5.3

Pros: Nice entertainment selection

Cons: Too many snacks, food was low quality, flight was delayed with no reason given,

TXL
FRA
Okay 5.6

Pros: Nice crew. Smooth and quick ride which is perfect. No entertainment system or food so cannot comment.

Cons: Worst airport to board from (Tegel). Waited 30 minutes for luggage in frankfurt airport. Unacceptable luggage handling (may related to airport in Frankfurt).

Thu, May 9
LGW
London Gatwick
DEN
Denver International
36h 37m
Thu, May 16
DEN
Denver International
LGW
London Gatwick
17h 24m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 19,597 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
LHR
FCO
Okay 4.6

Cons: I paid extra for exit row seating, but what they didn't tell me was that the flight attendant seat was facing ours, so much for leg room. The actual placement of the seats were aisle row and middle row-so neither of us had a window to look out of or wall to lean against, no overhead lighting or air vent either. Can you say "rip-off?" My husband, who is tall and broad shoulder was constantly being knocked around by the flight attendants and carts. This flight was miserable. I guess I should be thankful for the hour plus delay in departure.

LHR
KUL
Good 7.3

Pros: Excellent crews

Cons: Entertainment system

LHR
EDI
Mediocre 3.3

Cons: Had no idea we had not payed to check a bag. Could have paid online prior to boarding for 30 pounds, but because we did not know, had to pay 65 pounds in order to check a bag at the airport. I am extremely dissatisfied with this flight and with British airways in general. I wish I would have known about the baggage and I could have saved myself a LOT of money. British airway crew were rude and unhelpful. I will not be flying with them again.

VIE
LHR
Good 7.3

Pros: Crew professionalism

Cons: Earphone, squashy seat, limited leg space in economy class

JNB
WDH
Good 7.6

Pros: The flight was great and was on time. Down side, no entertainment at all.

Cons: Lack of entertainment

Thu, Nov 29
LGW
London Gatwick
DEN
Denver International
36h 33m
Thu, Dec 6
DEN
Denver International
LGW
London Gatwick
8h 40m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Dec 1
LHR
London Heathrow
DEN
Denver International
18h 23m
Thu, Dec 6
DEN
Denver International
LHR
London Heathrow
14h 26m
Trip: 6 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 1,945 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.6
Entertainment
6.4
Food
6.4
BUD
BRU
Mediocre 3.6

Cons: It was delayed. I paid very expensive to fly on Business to be on the first row. Because every minute count for me on this trip. But it was delayed. I feel I should get a refund for sum of the money I spent

CDG
BRU
Excellent 9.6

Pros: Comfort of the plane, service

Cons: No business lounge in CDG before 9am

MAD
BRU
Mediocre 2.3

Pros: The food was okay but thats the best thing I can say.

Cons: There was someone that pooped themselves, another that threw up, and the flight attendants were so rude. They kept spraying stuff in the air and even those of us sitting, so much in fact I had an asthma attack and had to use my inhaler. When I told the attendant, she said "theres nothing I can do," and kept spraying the air with this awful spray. The flight harmful to my health, exhausting, and uncomfortable. BEWARE OF THIS AIRLINE! I would have preferred not gone on my trip then fly this airline!

BUD
BRU
Okay 4.3

Cons: Flight delays is a constant problem with this company

VCE
BRU
Excellent 8.3

Pros: The crew was very cool

Cons: The food was ok

Sat, Feb 2
LGW
London Gatwick
DEN
Denver International
9h 50m
Sat, Feb 9
DEN
Denver International
LGW
London Gatwick
8h 40m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 30 reviews
Boarding
5.9
Comfort
6.1
Crew
6.4
Entertainment
6.1
Food
5.1
JFK
LGW
Okay 4.6

Cons: Charged exhorbitant fees delayed the flight and barely apologized

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.

LGW
JFK
Excellent 10.0

Pros: Efficient, quick, well organized

Cons: Nothing really

LGW
AUS
Good 6.0

Pros: Flight attendants very friendly

Cons: Difficult to get water during flight. 2 hour delay sitting on the tarmac at airport.

LGW
JFK
Mediocre 3.3

Pros: NOTHING!!!!!!

Cons: I absolutely hate traveling on this airline and with all the hidden charges realize that they are NOT as budget as one would expect. In this day and age how can one human being pass food or beverage under your nose to the passenger sitting next to you and not have the common courtesy to inquire if you are hungry? It seems odd to serve the "haves" while the "have nots" look on in hunger, the latter group even including children. Surely the better business model and or approach would be an inclusive one. When comparing the additional costs to travel its is far cheaper to take an option whereby luggage and food are included and you are not charged ridiculous amounts for, lets face it microwave meals. The PR for this company is misleading as it does not let the consumer know that this a LOW LOW budget airline and that traditional allowances on long haul flights have been totally obliterated!!!! I have travelled with Norwegian Airlines a total of 3 return flights and have finally had enough, they are an only option at times otherwise the extra 100 dollars for another airline is a pleasure to pay.

Sun, Mar 3
LGW
London Gatwick
DEN
Denver International
13h 25m
Sun, Mar 10
DEN
Denver International
LGW
London Gatwick
12h 15m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 7,986 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
SEA
KEF
Good 7.0

Cons: The pillow and blanket I was given had hairs from other people. It was obvious they were reusedanfnot cleaned

HAM
KEF
Excellent 10.0

Cons: Three hour delay in Reykjavik was needed and appropriate because of harsh/blustery winds. The passengers appreciated the absolute attention to safety in the long delay.

DEN
KEF
Okay 4.0

Pros: I’m usually easy to please but there wasn’t much to say that’s positive. Maybe the staff was helpful?

Cons: Air was out in coach so everyone was sweating in a sauna, while first class was cold and didn’t want the air any higher, major problem, needed to sleep but could get 15 min in. Worst flight I’ve ever been on, never been that uncomfortable in the air before

SFO
KEF
Good 6.6

Pros: Clean flight on time and short route

Cons: First time I had a transatlantic flight where there were zero meals or snacks

KEF
AMS
Good 6.0

Pros: Larger plane with more room

Cons: Boarding was a mess, no rows called; no one at the help desk.

Thu, Apr 18
LHR
London Heathrow
DEN
Denver International
14h 00m
Mon, Jun 10
DEN
Denver International
LHR
London Heathrow
19h 40m
Trip: 54 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,712 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
MUC
IAD
Excellent 8.0

Pros: Crew was so attentive and helpful. Very courteous and friendly. Had great experience.

Cons: Head rest on Seats tilts slightly forward making long flight uncomfortable

OSL
FRA
Mediocre 2.0

Cons: Missed my flight by 2 minutes and couldn’t find any representatives to help me determine my options. Was left to figure it out in my own.

LYS
MUC
Okay 5.3

Pros: Nice entertainment selection

Cons: Too many snacks, food was low quality, flight was delayed with no reason given,

MUC
DEN
Excellent 9.0

Pros: Loved the German touches like real silverware, good wine, and German movies with English subtitles! Also appreciated lots of liquids and never had to go searching for hydration.

Cons: Everything was great until we landed and I stood up in the aisle. A woman two rows behind opened the overhead compartment and pulled her huge backpack out, landing it right on my head! OUCH! I scolded her and she apologized, but, REALLY? Perhaps the crew needs to reiterate how dangerous this is to do! My head still hurts a little on top, almost a week later. Ugh.

AMS
MUC
Excellent 8.0

Pros: Was nice and pleasurable

Cons: Nothing

Fri, Feb 1
LHR
London Heathrow
DEN
Denver International
12h 55m
Fri, Feb 8
DEN
Denver International
LHR
London Heathrow
12h 15m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 7,986 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
KEF
AMS
Good 6.0

Cons: Got email night before that flight had cancelled or changed. Ended up on a flight on United. Got to my destination as scheduled.

HAM
KEF
Excellent 10.0

Cons: Three hour delay in Reykjavik was needed and appropriate because of harsh/blustery winds. The passengers appreciated the absolute attention to safety in the long delay.

KEF
SFO
Good 6.6

Pros: The crew

Cons: The boarding process was so chaotic at Iceland airport. Also for a 8hr flight food should be given not charged. The movie selection good have been better.

KEF
SFO
Good 7.6

Pros: Smooth on time flight...helpful responsive crew. Loce watching movies!

Cons: Food was not great...economy seats tight especially when the person in front of you puts their seat back and are essentially sleeping on you lap. This happened to me coming and going....

SFO
KEF
Good 6.6

Pros: Clean flight on time and short route

Cons: First time I had a transatlantic flight where there were zero meals or snacks

Fri, Feb 1
LHR
London Heathrow
DEN
Denver International
25h 40m
Fri, Feb 15
DEN
Denver International
LHR
London Heathrow
30h 35m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,712 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
AMS
MUC
Excellent 8.0

Pros: Was nice and pleasurable

Cons: Nothing

TXL
FRA
Okay 5.6

Pros: Nice crew. Smooth and quick ride which is perfect. No entertainment system or food so cannot comment.

Cons: Worst airport to board from (Tegel). Waited 30 minutes for luggage in frankfurt airport. Unacceptable luggage handling (may related to airport in Frankfurt).

BOS
FRA
Mediocre 2.0

Pros: I have never been treated so poorly by counter people in my life!

Cons: After 2 hour delay, the flight was cancelled. NO ONE helped to find another flight. After waiting in line for 2 hours, the ticket agent handed me a card and said I had to call the 800 number. The person on the phone said I had to talk to ticket agent to go standby on a flight to Munich and the ticket agent told me I had to call. I was caught in a loop and no one helped. Then when it became apparent I wasn't getting out that night I was informed that there were no hotel vouchers and I would have to find my own hotel! After searching for an hour for a hotel (all were sold out in Boston) I called a friend who lives outside of Boston. No one gave me a taxi voucher because it was not to a hotel. LUFTHANSA customer service is the WORST!!!!!!!!

IAD
IND
Good 7.5

Cons: I did not like the fact that the United flight I came in on was over a MILE of corridors away from the outgoing flight.

MUC
IAD
Excellent 8.0

Pros: Crew was so attentive and helpful. Very courteous and friendly. Had great experience.

Cons: Head rest on Seats tilts slightly forward making long flight uncomfortable

Wed, Dec 5
LGW
London Gatwick
DEN
Denver International
34h 07m
Wed, Dec 12
DEN
Denver International
LGW
London Gatwick
26h 47m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 19,597 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
LHR
KUL
Good 7.3

Pros: Excellent crews

Cons: Entertainment system

VIE
LHR
Good 7.3

Pros: Crew professionalism

Cons: Earphone, squashy seat, limited leg space in economy class

BCN
LHR
Excellent 8.0

Pros: Nice staff.

JNB
WDH
Good 7.6

Pros: The flight was great and was on time. Down side, no entertainment at all.

Cons: Lack of entertainment

LHR
DUS
Good 7.3

Pros: On Time

Cons: No leg room Got hit on the knee by a trolley

Sun, Mar 3
LHR
London Heathrow
DEN
Denver International
28h 30m
Sun, Mar 10
DEN
Denver International
LHR
London Heathrow
12h 15m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 7,986 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
KEF
AMS
Good 6.0

Cons: Got email night before that flight had cancelled or changed. Ended up on a flight on United. Got to my destination as scheduled.

SFO
KEF
Good 6.6

Pros: Clean flight on time and short route

Cons: First time I had a transatlantic flight where there were zero meals or snacks

KEF
SFO
Good 6.6

Pros: The crew

Cons: The boarding process was so chaotic at Iceland airport. Also for a 8hr flight food should be given not charged. The movie selection good have been better.

HAM
KEF
Excellent 10.0

Cons: Three hour delay in Reykjavik was needed and appropriate because of harsh/blustery winds. The passengers appreciated the absolute attention to safety in the long delay.

KEF
SFO
Good 7.6

Pros: Smooth on time flight...helpful responsive crew. Loce watching movies!

Cons: Food was not great...economy seats tight especially when the person in front of you puts their seat back and are essentially sleeping on you lap. This happened to me coming and going....

Mon, Apr 1
LGW
London Gatwick
DEN
Denver International
39h 53m
Mon, Apr 8
DEN
Denver International
LGW
London Gatwick
25h 30m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 19,597 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
BWI
LHR
Okay 5.3

Cons: Dear Sir or Madam: My two colleagues and I bought our tickets from BWI to Geneva, via London Heathrow, through Kayak as I have many times in the past. However, the Kiwi.com travel agency did not flag that the ticket from BWI to London Heathrow allowed for one piece of checked luggage, but the ticket from London Heathrow onwards to Geneva did not allow for any checked luggage. Also astonishingly, we had to pass through Customs, reclaim our checked suitcases from the baggage carousel, and check in again through Customs to board the onward flight, both coming and going through London Heathrow. In addition to the extraordinary inconvenience that we could neither transit at London Heathrow to our connecting flight without going through Customs twice and that we could not check our luggage through to our final destination, we also had to foot a higher baggage charge to allow for checking in our suitcases, now that we had arrived in London Heathrow only to discover this that our onward ticket did not cover one piece of checked luggage. Had we known that the seemingly better price posted by Kiwi.com on Kayak’s comparative offerings came at such a high price of inconvenience and additional expense for the luggage, we would have taken our business elsewhere. It was deceptive of Kiwi.com to engage in such practices, even if it disclosed these conditions in fine print (for no one would expect, nor have I ever seen previously in the hundreds of flights I have taken as a Million Miler on United), without flagging this. And similarly, it was irresponsible of Kayak.com to allow this “apples with oranges” comparison on its website. I’m making three more international trips in December, but I’m inclined not to use either Kayak.com and most certainly not Kiwi.com for future airline ticket purchases.

VIE
LHR
Good 7.3

Pros: Crew professionalism

Cons: Earphone, squashy seat, limited leg space in economy class

LHR
EDI
Mediocre 3.3

Cons: Had no idea we had not payed to check a bag. Could have paid online prior to boarding for 30 pounds, but because we did not know, had to pay 65 pounds in order to check a bag at the airport. I am extremely dissatisfied with this flight and with British airways in general. I wish I would have known about the baggage and I could have saved myself a LOT of money. British airway crew were rude and unhelpful. I will not be flying with them again.

LHR
FCO
Okay 4.6

Cons: I paid extra for exit row seating, but what they didn't tell me was that the flight attendant seat was facing ours, so much for leg room. The actual placement of the seats were aisle row and middle row-so neither of us had a window to look out of or wall to lean against, no overhead lighting or air vent either. Can you say "rip-off?" My husband, who is tall and broad shoulder was constantly being knocked around by the flight attendants and carts. This flight was miserable. I guess I should be thankful for the hour plus delay in departure.

GVA
LHR
Okay 4.6

Cons: Dear Sir or Madam: My two colleagues and I bought our tickets from BWI to Geneva, via London Heathrow, through Kayak as I have many times in the past. However, the Kiwi.com travel agency did not flag that the ticket from BWI to London Heathrow allowed for one piece of checked luggage, but the ticket from London Heathrow onwards to Geneva did not allow for any checked luggage. Also astonishingly, we had to pass through Customs, reclaim our checked suitcases from the baggage carousel, and check in again through Customs to board the onward flight, both coming and going through London Heathrow. In addition to the extraordinary inconvenience that we could neither transit at London Heathrow to our connecting flight without going through Customs twice and that we could not check our luggage through to our final destination, we also had to foot a higher baggage charge to allow for checking in our suitcases, now that we had arrived in London Heathrow only to discover this that our onward ticket did not cover one piece of checked luggage. Had we known that the seemingly better price posted by Kiwi.com on Kayak’s comparative offerings came at such a high price of inconvenience and additional expense for the luggage, we would have taken our business elsewhere. It was deceptive of Kiwi.com to engage in such practices, even if it disclosed these conditions in fine print (for no one would expect, nor have I ever seen previously in the hundreds of flights I have taken as a Million Miler on United), without flagging this. And similarly, it was irresponsible of Kayak.com to allow this “apples with oranges” comparison on its website. I’m making three more international trips in December, but I’m inclined not to use either Kayak.com and most certainly not Kiwi.com for future airline ticket purchases.

Thu, Mar 7
LHR
London Heathrow
DEN
Denver International
14h 15m
Thu, Mar 14
DEN
Denver International
LHR
London Heathrow
19h 35m
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 23,712 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
OSL
FRA
Mediocre 2.0

Cons: Missed my flight by 2 minutes and couldn’t find any representatives to help me determine my options. Was left to figure it out in my own.

IAD
IND
Good 7.5

Cons: I did not like the fact that the United flight I came in on was over a MILE of corridors away from the outgoing flight.

LYS
MUC
Okay 5.3

Pros: Nice entertainment selection

Cons: Too many snacks, food was low quality, flight was delayed with no reason given,

MUC
DEN
Excellent 9.0

Pros: Loved the German touches like real silverware, good wine, and German movies with English subtitles! Also appreciated lots of liquids and never had to go searching for hydration.

Cons: Everything was great until we landed and I stood up in the aisle. A woman two rows behind opened the overhead compartment and pulled her huge backpack out, landing it right on my head! OUCH! I scolded her and she apologized, but, REALLY? Perhaps the crew needs to reiterate how dangerous this is to do! My head still hurts a little on top, almost a week later. Ugh.

LOS
FRA
Excellent 8.3

Pros: The food was good was good

Cons: The entertainment was poor the movies selection was poor

Fri, Jan 25
LGW
London Gatwick
DEN
Denver International
13h 25m
Wed, Feb 6
DEN
Denver International
LGW
London Gatwick
12h 15m
Trip: 13 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 7,986 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
KEF
SFO
Good 6.6

Pros: The crew

Cons: The boarding process was so chaotic at Iceland airport. Also for a 8hr flight food should be given not charged. The movie selection good have been better.

EWR
KEF
Okay 5.6

Pros: Very cheap flight

Cons: No in-flight food, just water. Plane was very small. I’m almost 7 ft tall and asked if I could swap for an exit row, no dice. So I felt like a human-accordion between two rows of seat for the entire flight. I got what I paid for. Cheap airfare= discomfort.

KEF
JFK
Excellent 10.0

Pros: The flight took off and landed on time. There were also a lot of good food options on the flight that were not only edible, but also healthy

KEF
AMS
Good 6.0

Cons: Got email night before that flight had cancelled or changed. Ended up on a flight on United. Got to my destination as scheduled.

MAN
KEF
Mediocre 2.0

Cons: After the 8+ hour delay, Icelandair cancelled the flight. If you have a connection, you’re out of luck with so little flight options.

Sat, Jan 12
LTN
London Luton
DEN
Denver International
22h 29m
Fri, Jan 18
DEN
Denver International
LTN
London Luton
25h 20m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Nov 27
LHR
London Heathrow
DEN
Denver International
9h 55m
Tue, Dec 4
DEN
Denver International
LHR
London Heathrow
9h 00m
$1082
Trip: 8 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 14 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
LHR
DEN
Good 7.3

Pros: inbound crew very friendly - nice plane on outbound flight . service throughout inbound flight

Cons: Food was not good at all on outbound flight, limited vegetarian options inbound and was not able to select preference prior to flight. staff on outbound flight were unfriendly and service stopped after meal.

ORD
HEL
Good 7.6

Pros: Leg room, friendly crew, good choices for entertainment, nice blankets!

Cons: The flight was delayed for an hour, but the transfer in Helsinki was easy, I made it to the connect flight just in time for boarding

LHR
DEN
Excellent 8.3

Pros: Great crew and service

Cons: Uncomfortable seats. Not only no space to get comfortable but the seats themselves are not comfortable. We had better constructed seats on the hopper from Edinburgh to London. It is unconscionable that long flights are so uncomfortable!

LHR
DEN
Excellent 9.0

Pros: Food surprisingly good

Cons: Usual uncomfortable seating

LHR
HEL
Excellent 8.0

Pros: This is a great way to travel from Helsinki to Tampere and avoid the railway and train changing.

Cons: The plane is not comfortable, but the flight is very short. It balances out.

Wed, Nov 21
LHR
London Heathrow
DEN
Denver International
38h 08m
Wed, Nov 28
DEN
Denver International
LHR
London Heathrow
34h 11m
Trip: 8 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 1,945 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.6
Entertainment
6.4
Food
6.4
BRU
YYZ
Excellent 9.3

Pros: Great service, food and entertainment.

TLV
BRU
Mediocre 2.0

Pros: Nothing

Cons: I am handicap, I travel with a scooter. We let them know months in advance and still they did not plan or assist. My scooter was not brought up in Brussels or DC, I refused to leave the plane in DC until they finally brought it to plane. They sat me in row 38...I can only walk a few feet so the airline failed in every aspect...epuc fail. I will never fly Brussels airlines again.

MAD
BRU
Mediocre 2.3

Pros: The food was okay but thats the best thing I can say.

Cons: There was someone that pooped themselves, another that threw up, and the flight attendants were so rude. They kept spraying stuff in the air and even those of us sitting, so much in fact I had an asthma attack and had to use my inhaler. When I told the attendant, she said "theres nothing I can do," and kept spraying the air with this awful spray. The flight harmful to my health, exhausting, and uncomfortable. BEWARE OF THIS AIRLINE! I would have preferred not gone on my trip then fly this airline!

BRU
PRG
Mediocre 2.0

Cons: Delayed. Crew seemed pretty annoyed to have people aboard. Will avoid next time.

BUD
BRU
Mediocre 3.6

Cons: It was delayed. I paid very expensive to fly on Business to be on the first row. Because every minute count for me on this trip. But it was delayed. I feel I should get a refund for sum of the money I spent

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