Find Cheap Flights from Denver International to Basel EuroAirport Swiss (DEN - BSL)

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Looking for a cheap flight? 25% of our users found flights on this route for $919 or less.

FAQs for Booking Denver International to Basel EuroAirport Swiss Flights

How long does a flight from Denver International to Basel EuroAirport Swiss take?
An average nonstop flight takes 12h 15m, covering a distance of 5104 miles.
Which airlines provide the cheapest flights from Denver International to Basel EuroAirport Swiss?
In the past 3 days, the cheapest round-trip tickets were found on KLM ($552), British Airways ($575) and Lufthansa ($745).
Do I need a passport to fly between Denver International and Basel EuroAirport Swiss?
Yes.

Book cheap flights from Denver International to Basel EuroAirport Swiss (round-trip)

Airports
Origin
Denver
$552
only
$552
Destination
Basel
$552
only
$552
Sun, Apr 1
DEN
BSL
16h 20m
Sat, Apr 14
BSL
DEN
30h 30m
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
JNB
AMS
Excellent 8.0

Good multi media access and content

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

KRK
AMS
Mediocre 3.0

Flight way delayed 3 hours. Staff gave no information and wouldn't help rebook us onto other flights. They gave us food vouchers 2 minutes before we finally boarded, so we couldn't use them. The food on the plane had spoiled so we were all starving on the flight, and we all missed our connections. Horrible experience and wouldn't fly with KLM again.

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

Sat, Mar 31
DEN
BSL
19h 20m
Mon, Apr 9
BSL
DEN
13h 30m
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14012 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
SEA
Excellent 8.0

Behavior of board personnel

The delay in London

PHL
LHR
Okay 5.0

I feel like the overall product is so devalued at BA these days. It just doesn't feel classy anymore. As opposed to Lufthansa, which is an example of a European carrier that cares about passenger comfort and experience. Also the typical circling of LHR to get a slot is annoying and makes me want to avoid BA.

OTP
LHR
Mediocre 3.6

No food!!! No coffee!!! No water!!! "Brilliant" like low-cost !!!!! Incredible!!!

LGW
ALC
Okay 4.0

Crew didn't reach middle of plane with Food & Beverage. Lots of fussy/serving of premium passengers but economy not really looked after. Was bashed into 3 times by same member of crew walking up aisle and not once apologised.

LHR
SFO
Okay 5.6

Very big delay!!!

Fri, Feb 2
DEN
BSL
16h 05m
Sun, Feb 11
BSL
DEN
12h 55m
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17345 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BOS
MUC
Okay 5.3

Staff wasn’t particularly friendly, seats were the most uncomfortable ever

MUC
ATH
Okay 5.3

They don’t have order while boarding No space for the carry on- they didn’t ask to check them for free.

PRG
MUC
Good 6.0

Our original flight, one day earlier, was canceled 10 minutes before boarding.

LHR
MUC
Okay 5.0

The flight took off 2 hours late they must have known it was going to be that late, yet they lied saying that it was on time, forcing you to come to the airport early, then when you get to the airport they did the - oh its going to be 20 minutes late, no 40, no 1.5 hours late, heck it will be 2 hours late etc. Micro-tight seat pitch - I could barely sit in the seats.

AMS
FRA
Excellent 10.0

Staff were amazingly helpful n friendly. Food was yummy.

Mon, Jan 1
DEN
BSL
26h 40m
Mon, Jan 8
BSL
DEN
22h 59m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Dec 28
DEN
BSL
15h 10m
Sat, Jan 6
BSL
DEN
23h 41m
$1119
Trip: 10 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 1958 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.2
Entertainment
6.8
Food
7.1
CDG
BEY
Excellent 8.0

It es a good flight back

Items missing on duty free purchases

CDG
RDU
Excellent 8.0

Friendly staff

Window pane was broken on my side and I couldn't shut it down. As it was a day flight the sun heated my skin badly

DTW
CDG
Excellent 8.0

The crew was good and very good pilot's

No leg room between seats

CDG
TLV
Mediocre 3.0

Not checking my carry on weight at check in then letting me walk all the way to security to then check my bag and tell me to go back to check in then the counter is closed and they tell me it's too late and that I need to get ride of my things so that my bag is under weight and barely making the flight

CDG
OUA
Excellent 8.6

Absolutely nice friendly and professional crew. Congrats! Nice food, rich and healthy Right in time despite few delay at departure

Just a need to improve entertainment facilities (digital screen, Wi-Fi. ..)

Fri, Jan 19
DEN
BSL
16h 05m
Fri, Feb 2
BSL
DEN
13h 00m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17345 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BOS
MUC
Okay 5.3

Staff wasn’t particularly friendly, seats were the most uncomfortable ever

MUC
ATH
Okay 5.3

They don’t have order while boarding No space for the carry on- they didn’t ask to check them for free.

SEA
FRA
Excellent 10.0

Service , on time

AMS
FRA
Excellent 10.0

Staff were amazingly helpful n friendly. Food was yummy.

MUC
IAD
Good 7.0

between lunch and supper snack one isle had only one water serving and my isle had none. So for 6 hours we had no water serving. This is why I gave crew rating OK only. Also the supper pizza snack was horrible. By comparison, United gives full drink cans so they last longer. I suggest Lufthansa also should serve full drink cans in long flights.

Sun, Mar 4
DEN
BSL
12h 15m
Tue, Mar 20
BSL
DEN
16h 25m
$1275
Trip: 16 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17345 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
LHR
MUC
Okay 5.0

The flight took off 2 hours late they must have known it was going to be that late, yet they lied saying that it was on time, forcing you to come to the airport early, then when you get to the airport they did the - oh its going to be 20 minutes late, no 40, no 1.5 hours late, heck it will be 2 hours late etc. Micro-tight seat pitch - I could barely sit in the seats.

KRK
MUC
Excellent 8.0

efficient service. timely departures/ arrivals

SFO
MUC
Excellent 9.6

Flight on time

MUC
IAD
Good 7.0

between lunch and supper snack one isle had only one water serving and my isle had none. So for 6 hours we had no water serving. This is why I gave crew rating OK only. Also the supper pizza snack was horrible. By comparison, United gives full drink cans so they last longer. I suggest Lufthansa also should serve full drink cans in long flights.

AMS
FRA
Excellent 10.0

Staff were amazingly helpful n friendly. Food was yummy.

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