$417 Find Cheap Flights from Brussels to Colorado - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Brussels to Colorado departing on 9/9. 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
1 adult, Economy, 0 bags

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Book Cheap Brussels to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Brussels to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Brussels to Colorado

Fri, Oct 23 - Sat, Oct 31
Icelandair Logo
1:50 pm - 7:00 pm
BRU
-
DEN
13h 10m
1 stop
Icelandair Logo
4:40 pm - 11:55 am
DEN
-
BRU
12h 15m
1 stop
$721Icelandair
Sun, Aug 30 - Sun, Sep 6
Icelandair Logo
1:50 pm - 7:00 pm
BRU
-
DEN
13h 10m
1 stop
Icelandair Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
$750Icelandair
Thu, Aug 20 - Thu, Sep 3
Icelandair Logo
1:50 pm - 12:40 pm
BRU
-
DEN
30h 50m
1 stop
Icelandair Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
$758Icelandair
Mon, Sep 21 - Sun, Oct 4
Multiple Airlines Logo
7:05 am - 12:17 am
BRU
-
DEN
25h 12m
2 stops
Multiple Airlines Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
$763Multiple Airlines
Mon, Sep 21 - Sat, Oct 10
United Airlines Logo
8:35 am - 1:35 pm
BRU
-
DEN
13h 00m
1 stop
United Airlines Logo
5:35 pm - 1:15 pm
DEN
-
BRU
11h 40m
1 stop
$811United Airlines
Mon, Dec 21 - Sun, Jan 17
United Airlines Logo
7:00 am - 1:40 pm
BRU
-
DEN
14h 40m
1 stop
United Airlines Logo
1:25 pm - 8:55 am
DEN
-
BRU
11h 30m
1 stop
$812United Airlines
Mon, Dec 21 - Fri, Jan 15
United Airlines Logo
7:00 am - 1:40 pm
BRU
-
DEN
14h 40m
1 stop
United Airlines Logo
10:25 am - 7:15 am
DEN
-
BRU
12h 50m
1 stop
$812United Airlines
Mon, Sep 21 - Sat, Oct 10
British Airways Logo
10:50 am - 10:24 pm
BRU
-
DEN
19h 34m
2 stops
British Airways Logo
6:43 pm - 7:55 pm
DEN
-
BRU
17h 12m
2 stops
$840British Airways
Fri, Jan 15 - Mon, Jan 18
British Airways Logo
9:00 pm - 3:10 pm
BRU
-
DEN
26h 10m
1 stop
British Airways Logo
5:01 pm - 9:00 pm
DEN
-
BRU
19h 59m
1 stop
$858British Airways
Fri, Jan 15 - Mon, Jan 18
British Airways Logo
9:00 pm - 3:10 pm
BRU
-
DEN
26h 10m
1 stop
British Airways Logo
5:01 pm - 9:00 pm
DEN
-
BRU
19h 59m
1 stop
$863British Airways
Booking Insights

KAYAK's insights & trends for Brussels to Colorado flights

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

How much is a round-trip flight from Brussels to Colorado?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Brussels to Colorado departing in October.

Flight prices are typical for this route right now.

Flights to Colorado from Brussels usually cost between $612 and $904 in October.
The lowest price found in the past 5 days was $721 on Icelandair (Oct 23-Oct 31).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Brussels 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 Brussels to Colorado is October, when tickets cost $652 (return) on average. On the other hand, the most expensive months are January and June, when the average cost of round-trip tickets is $928 and $846 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Brussels 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 Brussels to Colorado, you should book around 2 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Cheapest flight

$417
Flight from Brussels Airport to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Brussels 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 Brussels to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Brussels 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 Brussels 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 Brussels 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 Brussels 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 Brussels to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Brussels to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Brussels to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. 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 Brussels 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
United AirlinesOverall score based on 10062 reviews
7.3Comfort
7.7Boarding
6.7Food
7.1Entertainment
8.1Crew
Airline reviews

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

6.0 GoodAnonymous, Jul 2026
BRU - IAD
Read more United Airlines reviews

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Flight was late, the only reason I almost missed my flight was that my connection was also late.

Lufthansa seats were much more comfortable than United. While they had about the same video selection, Lufthansa didn't put advertisements in with the movies like United did. And the Lufthansa food was much better than United.

Everything works smoothly once I got to Brussels. Flying with United Airlines from Atlanta to Chicago and Leaving Chicago for Brussels was a nightmare though. Slept at the airport in Chicago because my flight got delayed from Atlanta to Chicago. No accommodation provided because united airlines said I had economy ticket.

In general, flight attendants were not very welcoming. Because of delays in departure and luggage handling, we missed our connecting flight. Offered a later flight on standby but available seats were then taken by 4 or 5 airline crew so slept at airport and got home next day. I am a frequent traveler, and this experience was the worst.

The flight was excellent. The crew was great. The food offerings were very good.

Liked the excellent United crew, the food selection, the comfortable cabin and the excellent movie and tv shows selection. The interface on the screen is also excellent and gives the option to let the crew know to wake you up for meals, or not. I disliked the onboarding experience at the Brussels airport. The process is convoluted and was not explained to any passengers. I also don't understand why thee is an additional security screening when getting off the plane from Africa, when there was none when getting off the plane from the US.

Worst and most inattentive in-flight service I've ever had.

The 787 Dreamliner was probably the smoothest aircraft I have ever flown on. Made for a lovely trip

It was a good flight. The entertainment could be better.

Long line with check in at the DIA British Airway counter.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

There were no gluten-free vegan options available, so food was very limited on this flight, and some of the crew weren’t especially helpful about it. To make matters worse, a passenger was sick on board, and although the area was cleaned, the smell lingered for the rest of the journey. On top of that, we ended up circling for an extra hour, which only made the unpleasant situation drag on even longer.

We never made it onto this flight due to BA's lackluster organisation.

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

I have nothing but amazing things to say about every staff member I encounter on my transport from Brussels (Bru) to New York (jfk) via London (lhr) after many flight delays and changes every colleague I asked for help gave me the utmost respect and did everything in their power to make sure I arrived in Washington DC to make it in time for my brothers wedding. The flight attendants on the flight from Bru to lhr move me to the front of the plane so I could get off quickly and try to make it to my connection to dc, when I missed that wagans at the support desk did everything in his power to get me to dc via two transfers. Especially during the busy holiday season I am so so grateful for the amazing customer service that I encountered today.

Firing with British airways leaves me feeling stressed and disappointed. They are substandard in so many aspects of airline travel.

Worst trans-Atlantic flight in years! The seats were incredibly tight, both in width and depth. The back selection was so cold, it was like traveling in a refrigerator. Although I had an entire row, the seat arms would not go up, so I could not take advantage of it to sleep. However, the crew was smiling and helpful and really seemed to enjoy their jobs. The food was the worst I have ever experienced on any flight. The PA system blasts announcements to the point of hurting my ears when using the audiovisual equipment. Not safe or sat. Also, I did not like the bait and switch tactic. I put in a search with one bag and the other flights had put that into their price, but BA did not and made me pay extra for it which would have made the price comparable to others. Also, even at check in there was no “choice” of seat, unless you paid extra for it even in the same row. No other airline I have been on does this. Once check in begins, normally, you can choose any unoccupied seat in your category. These tactics and the lack of comfort means I will never fly BA again.

An early flight and a bit confusing where to check in with British Airways; good we asked at the information counter the night before as we stayed overnight at the Sheraton on the departure level.

Everything you need to know for your flight from Brussels 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.