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Find cheap flights from Denver to Belgium from $343

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Belgium departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/1
Mon 7/8

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Best Belgium Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Brussels
Brussels2 stops$540

Good to know

Low season

February

High season

July

Cheapest flight

$343
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from Denver to Charleroi Brussels

FAQs - booking Belgium flights

  • How does KAYAK find such low prices on flights from Denver to Belgium?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Belgium.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Belgium?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belgium from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Belgium?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belgium with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Belgium?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belgium from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Belgium

  • Morning departure is around 34% 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

Top 5 airlines serving from Denver to Belgium

 
Need help choosing which airline to fly with from Denver to Belgium? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10754 reviews
7.2Comfort
7.1Entertainment
6.7Food
7.7Boarding
8.1Crew
Airline reviews

Not worth the premium paid for the first class ticket

6.0 GoodMohamud R, Jun 2024DEN - YVR
Read more about United Airlines reviews

Not worth the premium paid for the first class ticket

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

Fine. Though no food or entertainment so the survey needs to be updated with those options.

This was a flight operated by Lufthansa. See me prior comments, which were meant for this experience. The CSA, Ashley, should be reprimanded if not fired for incompetence, being rude, and very, very slow. She was whispering to other CSAs, blaming my flight change on others, unable to give me a seat assignment, telling me could not help without offering any advice (I travel 200,000 miles a year and am a consultant to the airlines, so I know how this gets done PRETTY DAMN WELL). Then, she gave me literally the worst seat on the airline (yes, there were other seats open) - the one right next to the bathroom that was so bad the other PAX next to me left to move to another seat. My seat kept getting rammed (3x) by the crew with their carts (no turbulence to speak of), other passengers grabbing the seat to get in or out of the bathroom, and listening to the bathroom flush all night.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

Good dinner and nice plane.Smootz flight. Breakfast had no sweet option. Seats hardly reclined.

Too many fees (but that seems to apply to all airlines nowadays)

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

I missed my connecting flight due to long lines at security and immigration. Need improvements

Food quality is deteriorating each time, last year was very good. I avoid the plane food lately.

Been flying on various airlines, all over the world, for 50+ years. The food on Brussels Air was easily the worst I ever endured.

I felt the overall quality of the plane and food service was less than that of their partner airlines, United. An example was wine was served in paper cups in premium economy class. There was no real silverware, napkins or a welcome kit other than a pillow and blanket.

Boarding time was a bit slow causing the flight to not leave right at 5 pm,but other than that it was fine.

I like the frequent mails we get when there is an update. Please keep it up

I have traveled to probably over a hundred locations worldwide, but had only one mixup of airport in Shanghai. Until Iceland and Stockholm. Reykjavik has 2 airports, Stockholm 4 (!). Please indicate clearly when a departure flight is scheduled from an aiport other than the international aiport. That would greatly reduce stress. Thanks

in the front - higher class of business - sitting in the same seat (with one empty in the middle) is not acceptable any more. need the business class to be as we paid for.

More than one hour detail with no explanation and no compensation

my husband's monitor did not work. there was a visibly ill family in my husband's row.

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

Everything was good except food. I believe there is room for improvement

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

Book cheap flights from Denver to Belgium

Recent round-trip flight deals

10/23Wed
2 stops
21h 31mDEN-BRU
10/29Tue
2 stops
19h 51mBRU-DEN
$540
9/17Tue
2 stops
21h 45mDEN-BRU
10/31Thu
2 stops
19h 27mBRU-DEN
$577
10/20Sun
2 stopsDelta
23h 50mDEN-BRU
11/10Sun
1 stopDelta
15h 24mBRU-DEN
$735
10/23Wed
2 stopsUnited Airlines
16h 50mDEN-BRU
10/29Tue
1 stopUnited Airlines
14h 26mBRU-DEN
$790
9/17Tue
2 stopsBritish Airways
17h 52mDEN-BRU
10/31Thu
1 stopBritish Airways
26h 55mBRU-DEN
$804
10/12Sat
2 stopsBritish Airways
33h 58mDEN-BRU
10/21Mon
1 stopBritish Airways
28h 30mBRU-DEN
$834
10/11Fri
2 stopsDelta
23h 50mDEN-BRU
10/21Mon
1 stopDelta
20h 04mBRU-DEN
$901
8/25Sun
1 stopLufthansa
11h 35mDEN-BRU
9/1Sun
2 stopsLufthansa
18h 00mBRU-DEN
$937
7/17Wed
1 stopUnited Airlines
15h 30mDEN-BRU
7/24Wed
1 stopUnited Airlines
32h 30mBRU-DEN
$1,056
6/19Wed
1 stopLufthansa
15h 45mDEN-BRU
7/7Sun
1 stopLufthansa
33h 25mBRU-DEN
$1,223

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Recent one-way flight deals

7/5Fri
2 stops
53h 00mDEN-CRL
$343
7/5Fri
2 stops
50h 40mDEN-BRU
$361
6/13Thu
3 stops
26h 59mDEN-CRL
$399
6/13Thu
3 stops
43h 49mDEN-BRU
$423
7/5Fri
3 stops
46h 35mDEN-CRL
$433
7/5Fri
1 stop
29h 15mDEN-BRU
$448
7/24Wed
1 stopAer Lingus
29h 40mDEN-BRU
$527
6/29Sat
1 stopLufthansa
32h 10mDEN-BRU
$813
7/24Wed
2 stopsDelta
15h 31mDEN-BRU
$834
6/13Thu
1 stopKLM
18h 07mDEN-BRU
$891

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Last minute flights from Denver to Belgium

Last minute flight, train and bus deals

6/3Mon
multi-stopKLM
18h 35mDEN-BRU
6/20Thu
multi-stopKLM
20h 02mBRU-DEN
$988
6/2Sun
multi-stopDelta
24h 15mDEN-BRU
6/20Thu
multi-stopDelta
15h 19mBRU-DEN
$992
6/2Sun
multi-stopDelta
24h 50mDEN-BRU
7/2Tue
multi-stopDelta
20h 02mBRU-DEN
$993
6/5Wed
multi-stopSWISS
16h 30mDEN-BRU
6/11Tue
multi-stopSWISS
28h 20mBRU-DEN
$1,009
6/2Sun
multi-stopAir Canada
25h 52mDEN-BRU
7/2Tue
multi-stopAir Canada
27h 47mBRU-DEN
$1,021
6/4Tue
multi-stopLufthansa
12h 10mDEN-BRU
6/11Tue
multi-stopLufthansa
12h 20mBRU-DEN
$1,211
6/4Tue
multi-stopAir Canada
17h 05mDEN-BRU
6/9Sun
multi-stopAir Canada
18h 56mBRU-DEN
$1,233
6/6Thu
multi-stopLufthansa
12h 10mDEN-BRU
6/11Tue
multi-stopLufthansa
12h 20mBRU-DEN
$1,261
6/4Tue
multi-stopIcelandair
12h 10mDEN-BRU
6/8Sat
multi-stopIcelandair
13h 10mBRU-DEN
$1,670
6/5Wed
multi-stopIcelandair
12h 10mDEN-BRU
6/7Fri
multi-stopIcelandair
13h 10mBRU-DEN
$1,986

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Denver - Belgium Flights

Departure:

Denver (DEN)United States

Return flight deals:

Belgium - Denver

Cabin classes: