$533 Find Cheap Flights from Belgium to Colorado

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Colorado, as well as popular online travel agencies
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Useful Info

KAYAK's insights & trends for flights to Colorado

Get data-powered insights and trends for flights to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Belgium to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Belgium to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Belgium to Colorado is September, when tickets cost $621 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $792 and $773 respectively.

How far in advance should I book a flight from Belgium to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Belgium to Colorado, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.


Good to know

Low seasonMarch
High seasonJuly
Cheapest flight$533
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Brussels Airport to Denver

FAQs for booking flights from Belgium to Colorado

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

    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 Belgium to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belgium to Colorado 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 Belgium to Colorado?

    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 from Belgium to Colorado with an airline and back with another airline.

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

    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 from Belgium to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Colorado?

    Based on KAYAK data, the cheapest day to fly to Colorado is Wednesday where round-trip tickets can be as cheap as $768. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,022 on average.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally in the afternoon, when round-trip flights cost $757 on average. The most expensive time of day to fly to Colorado is generally at night, which is peak travel time and where the average cost of a ticket is $862.

Reviews of the top 5 airlines serving from Belgium to Colorado

 
See real verified KAYAK customer reviews for airlines flying to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Belgium to Colorado. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Belgium to Colorado? 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
Brussels AirlinesOverall score based on 355 reviews
6.3Entertainment
7.5Boarding
6.4Food
7.1Comfort
8.0Crew
Airline reviews

All great. Very efficient. Good emails that kept us in the know

10.0 ExcellentGrant, May 2025ALC - BRU
Read more Brussels Airlines reviews

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

It was really good because the employees were very nice and fun to talk to. The entertainment was nice because they had plenty of movies to watch.

Crew was enthusiastic. Meal was surprisingly good. They came to give water very frequently. Negative that the seat reclining didn't work

That was a short flight by the only time I could actually sleep

How can a national carrier and part of Lufthansa group not even provide complimentary water and a snack in such a long flight ?

The flight went well, only during the flight from Brussels to Vilnius I would have liked if they had at least given us plain water to drink.

The boarding process would have been better. When people are flying internationally and the airline is a member of Star Alliance they cannot have different rules for carryon baggage. Brussels Airlines made us adjust the weight of our carryons based on their rules even though we were flying international and our next flight was with United which does not have weight restrictions for carryons. That was just ridiculous.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Not as good as expected Air Can needs to improve totally rated on internet as worst

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

They cancelled my flight and downgraded me to economy and only gave me $250 for the downgrade

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

The flight crew were friendly and attentive. Food was good and they passed out ice cream and drinks awhile after Lunch was done. The ice cream was a nice treat! I found several movies to watch during the flight. There was many movies and tv shows to choose from. We flew Premium economy and there was enough leg room to be comfortable. The seats were also comfortable. I would fly AA again if the airfare isn’t expensive.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Never happened. Flight was delayed. Had to be re rojyed

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

Beautifully maintained airplane, good food, professional crew, top-notch communication. I highly recommend Lufthansa for intercontinental flights between the United States and Europe.

Lufthansa is my favorite airline and have flown oversea with them for the past 25 years: i always found them so professional and incredibly efficient from checking in to arrival. I also love their Munich or Frankfurt airports.

The United flight was excellent! The flight attendants were attentive and nice, and the food was very good! And the glasses are larger than on Lufthansa flights! I don’t want to have to ask for 15 glasses of water because their glasses are ridiculously small!

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

Book cheap flights from Belgium to Colorado

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Colorado found on KAYAK in the last 72 hours.
8/30Sat
1 stopIcelandair
30h 40mBRU-DEN
9/19Fri
1 stopIcelandair
12h 10mDEN-BRU
$533
10/25Sat
1 stopIcelandair
13h 05mBRU-DEN
11/8Sat
1 stopIcelandair
12h 15mDEN-BRU
$557
9/11Thu
1 stopBritish Airways
13h 35mBRU-DEN
9/26Fri
2 stopsBritish Airways
18h 04mDEN-BRU
$558
7/3Thu
2 stopsBritish Airways
28h 30mBRU-DEN
7/16Wed
1 stopBritish Airways
31h 20mDEN-BRU
$560
10/23Thu
1 stopAmerican Airlines
33h 35mBRU-DEN
11/8Sat
1 stopAmerican Airlines
15h 10mDEN-BRU
$569
10/23Thu
2 stopsAmerican Airlines
18h 10mBRU-DEN
11/9Sun
2 stopsAmerican Airlines
14h 18mDEN-BRU
$575
7/3Thu
1 stopUnited Airlines
19h 42mBRU-DEN
7/16Wed
1 stopUnited Airlines
12h 00mDEN-BRU
$690
7/30Wed
1 stopUnited Airlines
20h 30mBRU-DEN
8/4Mon
1 stopUnited Airlines
11h 35mDEN-BRU
$700
6/27Fri
1 stopLufthansa
20h 30mBRU-DEN
7/17Thu
1 stopLufthansa
31h 35mDEN-BRU
$770
6/27Fri
1 stopLufthansa
20h 30mBRU-DEN
7/15Tue
2 stopsLufthansa
19h 25mDEN-BRU
$775

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Colorado found on KAYAK in the last 72 hours.
10/1Wed
1 stopAer Lingus
15h 39mBRU-DEN
$578
12/8Mon
2 stopsAer Lingus
20h 02mBRU-DEN
$595
7/15Tue
1 stopBrussels Airlines
14h 38mBRU-DEN
$666
7/23Wed
1 stopLufthansa
15h 00mBRU-DEN
$678
12/8Mon
1 stopLufthansa
13h 30mBRU-DEN
$695
8/10Sun
1 stopBrussels Airlines
12h 10mBRU-DEN
$728
9/30Tue
1 stopBritish Airways
27h 30mBRU-DEN
$775
8/12Tue
1 stopBritish Airways
13h 30mBRU-DEN
$796
9/29Mon
3 stopsUnited Airlines
21h 13mBRU-DEN
$1,483
10/4Sat
3 stopsUnited Airlines
37h 20mBRU-DEN
$1,484

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Last minute flights to Colorado

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Colorado that are departing in the next 10 days.
6/22Sun
multi-stopBrussels Airlines
16h 20mBRU-DEN
7/18Fri
multi-stopBrussels Airlines
13h 35mDEN-BRU
$867
6/21Sat
multi-stopAir Canada
16h 20mBRU-DEN
7/17Thu
multi-stopAir Canada
30h 20mDEN-BRU
$909
6/22Sun
multi-stopAmerican Airlines
19h 38mBRU-DEN
7/14Mon
multi-stopAmerican Airlines
15h 39mDEN-BRU
$1,127

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Everything you need to know for your flight to Colorado

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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