Find Cheap Flights from Denver International to Cologne Köln/Bonn (DEN - CGN)

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Denver International to Cologne Köln/Bonn Flight Information

Flights Arrive in Cologne Köln/Bonn
Flights Depart from Denver International
Flight Price $803
Distance 4941 miles
Airlines Lufthansa, TAP AIR PORTUGAL, SWISS

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $1104 or less.

FAQs for Booking Denver International to Cologne Köln/Bonn Flights

How long does a flight from Denver International to Cologne Köln/Bonn take?
An average nonstop flight takes 12h 20m, covering a distance of 4941 miles.
Which airlines provide the cheapest flights from Denver International to Cologne Köln/Bonn?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($803), Lufthansa ($1297) and TAP AIR PORTUGAL ($1875).
Do I need a passport to fly between Denver International and Cologne Köln/Bonn?
Yes.
What’s the cheapest day of the week to fly Denver International to Cologne Köln/Bonn?
For Denver International to Cologne Köln/Bonn, Thursday is the cheapest day to fly on average and Friday is the most expensive. Flying from Cologne Köln/Bonn back to Denver International, the best deals are generally found on Monday, with Saturday being the most expensive.

Book cheap flights from Denver International to Cologne Köln/Bonn (round-trip)

Airports
Origin
Denver
$803
only
$803
Destination
Cologne
$803
only
$803
Thu, Oct 11
DEN
CGN
23h 15m
Wed, Oct 24
CGN
DEN
25h 20m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 12
DEN
CGN
15h 30m
Wed, Jun 27
CGN
DEN
13h 10m
$1297
Trip: 16 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 20245 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MUC
CLT
Excellent 10.0

on time Family Check in that the flight was not booked out

TLV
FRA
Excellent 10.0

Cramped seating :-0

DUS
MUC
Excellent 10.0

on time Family Check in

MUC
DBV
Excellent 10.0

Crew was outstanding

BOS
MUC
Good 6.0

I wish service could be a bit faster. Due to turbulence our second meal could not be served at all. Not sure why the passengers were not served as they were seated. Some passengers were served, some didn’t get served at all. It was a long journey coming from Boston. Imagine arriving home after 1 am without any food.

Thu, Jun 14
DEN
CGN
28h 56m
Wed, Jun 27
CGN
DEN
24h 15m
$1875
Trip: 14 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3455 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.7
Food
7.1
LIS
AMS
Good 7.3

TAP Airlines did not fly this route for day and probably hired NEOS Airlines to fly as charter or contract this route only? NEOS Airlines is an Italian airline probably comparable to Southwest Airlines in the USA. It's a cattle car airline with no frills. Crew was very professional, food was actually good. A sandwich that was of course Italian ingredients. Seats were comfortable for the 3 hour flight.

Checking in and paying a $49 excesses baggage fee for I was better off paying a full fare. Discount fare, what a joke!Than finding out that TAP put me on standby status?? But I eventually got a seat. It was no relief thinking I would be left behind and my plans elude be delayed.TAP airlines had only worked the front desk check in, gate check in and don't know about the ramp service. So I can't give a full positive review of TAP Airlines

FRA
LIS
Okay 5.0

Had to check 2 of our luggages, and it cost $95 per piece. Never flown an airline where I had to pay more than $50 per piece. Also carryon has to be less than 8 kg. Our small luggage that we had to check never had any problems with any other airlines about being a carryon but since it was over 8 kg, it had to be checked. Flight was short but no entertainment screen to watch or listen to music. Will not be flying with airline ever again.

ORY
LIS
Good 7.3

Book wheelchair assistance for flight, all went well. At destination Lisbon, no wheelchair no assistance very poor service.

AMS
LIS
Mediocre 2.0

Nothing

I paid for the upgrade to business class and is like wasting money, the seat on business class was not working good

LGW
LIS
Excellent 10.0

I was very comfortable with empty seats in my row.

No entertainment facilities.

Fri, May 18
DEN
CGN
22h 15m
Sat, Jun 2
CGN
DEN
24h 30m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jun 15
DEN
CGN
31h 35m
Fri, Jun 29
CGN
DEN
13h 45m
$2203
Trip: 15 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 6278 reviews
Overall
8.3
Boarding
8.3
Comfort
7.9
Crew
8.7
Entertainment
7.8
Food
8.0
ZRH
ATH
Excellent 8.8

Flight staff was attentive and professional.

The food was mediocre.

ZRH
EWR
Good 6.3

Though our flight got delayed, we arrived almost on time.

Because the flight was delayed, boarding seemed a bit chaotic. Everybody tried to board at the same time. The seat had technical issues - it would either recline or be upright. The crew had to spend quite a bit of time trying to figure out how to return from a flat bed to the upright position. Entertainment was re-booted 3-4 times during the flight to get it to work consistently.

BEG
ZRH
Good 6.0

Food

ZRH
BOS
Excellent 8.0

Very courteous attendants.

ZRH
BOS
Excellent 10.0

Amazing staff ..

Tue, Jun 12
DEN
CGN
17h 30m
Mon, Jun 25
CGN
DEN
21h 03m
$1055
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 12
DEN
CGN
17h 30m
Tue, Jun 26
CGN
DEN
21h 20m
$1124
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 13
DEN
CGN
21h 00m
Mon, Jun 25
CGN
DEN
21h 03m
$1129
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jun 11
DEN
CGN
24h 00m
Mon, Jun 25
CGN
DEN
21h 03m
$1147
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jun 14
DEN
CGN
17h 30m
Mon, Jun 25
CGN
DEN
21h 03m
$1170
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jun 14
DEN
CGN
28h 56m
Fri, Jun 29
CGN
DEN
24h 15m
$2045
Trip: 16 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3455 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.7
Food
7.1
AMS
LIS
Okay 5.0

Nice and clean aircraft, snack on the way to Lisbon

Cramped seats (very),

BOS
LIS
Excellent 8.8

overall good service; seats are full recline leaning type, which isn't the most comfortable solution, but ok.

TAP connecting flight was three hours late

LIS
BOS
Okay 4.6

Had to check 2 of our luggages, and it cost $95 per piece. Never flown an airline where I had to pay more than $50 per piece. Also carryon has to be less than 8 kg. Our small luggage that we had to check never had any problems with any other airlines about being a carryon but since it was over 8 kg, it had to be checked. Took a 7.5 hour flight and the entertainment screen was not working for anyone, as the system was broken. Will not be flying with airline ever again.

AMS
LIS
Mediocre 2.0

Nothing

I paid for the upgrade to business class and is like wasting money, the seat on business class was not working good

LIS
MXP
Excellent 9.3

Flight was three hours late.

Fri, Jun 15
DEN
CGN
14h 15m
Wed, Jun 27
CGN
DEN
13h 10m
$2116
Trip: 13 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 20245 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
BOS
Excellent 10.0

Very comfortable journey, was a pleasure to travel.

Nothing.

BOS
MUC
Good 6.0

I wish service could be a bit faster. Due to turbulence our second meal could not be served at all. Not sure why the passengers were not served as they were seated. Some passengers were served, some didn’t get served at all. It was a long journey coming from Boston. Imagine arriving home after 1 am without any food.

TLV
FRA
Excellent 10.0

Cramped seating :-0

DUS
MUC
Excellent 10.0

on time Family Check in

FRA
SEA
Excellent 9.6

Thanks for continuing to offer complimentary, hot meals on your international flights! Crew very friendly. Despite being in economy cabin, crew attempted to make it a good experience.

Long flight, bathrooms start to look ugly. Incoming plane landed way out on the tarmac, obligating passengers to be all packed into shuttle bus which took a long time to get to terminal.

Wed, Jun 13
DEN
CGN
21h 00m
Tue, Jun 26
CGN
DEN
21h 20m
$1198
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Aug 8
DEN
CGN
29h 20m
Sat, Aug 25
CGN
DEN
16h 31m
$1210
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jun 14
DEN
CGN
28h 56m
Sun, Jul 1
CGN
DEN
35h 50m
$2145
Trip: 18 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3455 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.7
Food
7.1
AMS
LIS
Okay 5.0

Nice and clean aircraft, snack on the way to Lisbon

Cramped seats (very),

LIS
MXP
Excellent 9.3

Flight was three hours late.

LIS
BOS
Okay 4.6

Had to check 2 of our luggages, and it cost $95 per piece. Never flown an airline where I had to pay more than $50 per piece. Also carryon has to be less than 8 kg. Our small luggage that we had to check never had any problems with any other airlines about being a carryon but since it was over 8 kg, it had to be checked. Took a 7.5 hour flight and the entertainment screen was not working for anyone, as the system was broken. Will not be flying with airline ever again.

LIS
MIA
Good 7.0

We had comfort seats and I liked that because of the space you have, 2 simple meals and they served water in between the meals I will fly TAP again

Entertainment is okay, poor sound, and the quality of the screen was so so,

ORY
LIS
Good 7.3

Book wheelchair assistance for flight, all went well. At destination Lisbon, no wheelchair no assistance very poor service.

Tue, Jun 12
DEN
CGN
12h 20m
Fri, Jun 29
CGN
DEN
12h 30m
$2191
Trip: 18 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 20245 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BLR
FRA
Excellent 10.0

Excellent boarding experience. Very good food, overall a very comfortable journey.

Nothing.

SEA
FRA
Excellent 10.0

Rating and bad customer experience shared on web....

SAN
FRA
Good 7.6

Crew

Crew

MUC
EWR
Mediocre 2.0

Comfortable plane, food good, flight attendants professional. No complaints

FRA
SEA
Excellent 9.6

Thanks for continuing to offer complimentary, hot meals on your international flights! Crew very friendly. Despite being in economy cabin, crew attempted to make it a good experience.

Long flight, bathrooms start to look ugly. Incoming plane landed way out on the tarmac, obligating passengers to be all packed into shuttle bus which took a long time to get to terminal.

Mon, Jun 11
DEN
CGN
24h 00m
Tue, Jun 26
CGN
DEN
21h 20m
$1216
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jun 15
DEN
CGN
14h 15m
Sun, Jul 1
CGN
DEN
15h 50m
$2291
Trip: 17 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 20245 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BLR
FRA
Excellent 10.0

Excellent boarding experience. Very good food, overall a very comfortable journey.

Nothing.

FRA
AGP
Excellent 10.0

We liked it all. Great flight!

The big layover but even that worked out well

BOS
MUC
Good 6.0

I wish service could be a bit faster. Due to turbulence our second meal could not be served at all. Not sure why the passengers were not served as they were seated. Some passengers were served, some didn’t get served at all. It was a long journey coming from Boston. Imagine arriving home after 1 am without any food.

MUC
DBV
Excellent 10.0

Crew was outstanding

FRA
BOS
Excellent 10.0

Very comfortable journey, was a pleasure to travel.

Nothing.

Tue, Jun 12
DEN
CGN
17h 30m
Thu, Jun 28
CGN
DEN
17h 23m
$1222
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 12
DEN
CGN
17h 30m
Sat, Jun 30
CGN
DEN
16h 38m
$1233
Trip: 19 days
Overall 0.0 Poor
Based on 0 reviews
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