BRU - DEN

$455 Find Cheap Flights from Brussels Airport to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bruxelles-National to Denver departing on 5/25. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$676
Overall average: $759
Lufthansa
Thu 2/19Wed 3/4
BRU - DEN • 1 stop
Cheapest one-way
$455
Typical prices: $559-$689
Finnair
Mon 5/25
BRU - DEN • 2 stops
Top airlines
Lufthansa
Cheapest • from $676 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 14% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bruxelles-National to Denver (BRU-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bruxelles-National to Denver 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 Bruxelles-National to Denver

Thu, Feb 19 - Wed, Mar 4
Lufthansa Logo
9:00 am - 1:40 pm
BRU
-
DEN
12h 40m
1 stop
Lufthansa Logo
11:15 am - 8:55 am
DEN
-
BRU
13h 40m
1 stop
$676Lufthansa
Thu, Feb 19 - Wed, Mar 4
Multiple Airlines Logo
9:00 am - 6:08 pm
BRU
-
DEN
17h 08m
2 stops
Multiple Airlines Logo
5:35 pm - 1:15 pm
DEN
-
BRU
11h 40m
1 stop
$683Multiple Airlines
Mon, Feb 23 - Sun, Mar 8
Multiple Airlines Logo
9:00 am - 1:40 pm
BRU
-
DEN
12h 40m
1 stop
Multiple Airlines Logo
6:35 pm - 1:15 pm
DEN
-
BRU
11h 40m
1 stop
$685Multiple Airlines
Mon, Apr 20 - Wed, May 13
Multiple Airlines Logo
11:20 am - 10:40 pm
BRU
-
DEN
19h 20m
2 stops
Multiple Airlines Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
$687Multiple Airlines
Mon, Apr 20 - Wed, May 13
Multiple Airlines Logo
6:30 am - 10:40 pm
BRU
-
DEN
24h 10m
2 stops
Multiple Airlines Logo
9:40 am - 1:15 pm
DEN
-
BRU
19h 35m
2 stops
$692Multiple Airlines
Thu, Feb 19 - Wed, Mar 4
Multiple Airlines Logo
9:00 am - 6:08 pm
BRU
-
DEN
17h 08m
2 stops
Multiple Airlines Logo
1:25 pm - 1:15 pm
DEN
-
BRU
15h 50m
2 stops
$696Multiple Airlines
Thu, Apr 23 - Wed, May 13
Multiple Airlines Logo
10:50 am - 10:47 pm
BRU
-
DEN
19h 57m
2 stops
Multiple Airlines Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
$698Multiple Airlines
Thu, Feb 19 - Wed, Mar 4
Multiple Airlines Logo
7:00 am - 1:40 pm
BRU
-
DEN
14h 40m
1 stop
Multiple Airlines Logo
10:20 am - 8:05 am
DEN
-
BRU
13h 45m
1 stop
$701Multiple Airlines
Thu, Apr 23 - Wed, May 13
Multiple Airlines Logo
10:50 am - 10:47 pm
BRU
-
DEN
19h 57m
2 stops
Multiple Airlines Logo
9:40 am - 1:15 pm
DEN
-
BRU
19h 35m
2 stops
$702Multiple Airlines
Thu, Apr 23 - Wed, May 13
Lufthansa Logo
10:15 am - 4:29 pm
BRU
-
DEN
14h 14m
1 stop
Lufthansa Logo
11:15 am - 9:00 am
DEN
-
BRU
13h 45m
1 stop
$703Lufthansa
Booking Insights

KAYAK's insights & trends for Bruxelles-National to Denver flights

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

What is the cheapest month to fly from Brussels Bruxelles-National Airport to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Brussels Bruxelles-National Airport to Denver, 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 Bruxelles-National Airport to Denver is October, where tickets cost $613 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $928 and $797 respectively.

How far in advance should I book a flight from Brussels Bruxelles-National Airport to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Brussels Bruxelles-National Airport to Denver, 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 Bruxelles-National Airport to Denver, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$455
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Brussels Airport to Denver

When to book flights from Bruxelles-National to Denver

Are your dates flexible? Find out the best times to travel from Bruxelles-National to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Brussels Airport to Denver flights

  • What is the cheapest flight from Brussels Bruxelles-National Airport to Denver?

    In the last 3 days, the lowest price for a flight from Brussels Bruxelles-National Airport to Denver was $455 for a one-way ticket and $676 for a round-trip.

  • Do I need a passport to fly between Brussels Airport and Denver?

    Yes, you’ll need a passport to travel to Denver from Brussels Airport.

  • Which airports will I be using when flying from Brussels Airport to Denver?

    Brussels Airport and Denver are both served by 1 main airport. You will leave Brussels Airport from Brussels Bruxelles-National and will be arriving at Denver Intl.

  • Which aircraft models fly most regularly from Brussels Airport to Denver?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Brussels Airport to Denver?

    oneworld, and Star Alliance are the airline alliances operating flights between Brussels Airport and Denver, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Brussels to Denver, United Airlines or Brussels Airlines?

    The two airlines most popular with KAYAK users for flights from Brussels to Denver are United Airlines and Brussels Airlines. With an average price for the route of $802 and an overall rating of 7.4, United Airlines is the most popular choice. Brussels Airlines is also a great choice for the route, with an average price of $671 and an overall rating of 7.2.

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

    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 Airport to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Brussels Airport 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 Airport to Denver?

    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 Denver with an airline and back to Brussels Airport with another airline. Booking your flights between Brussels Airport and DEN can sometimes prove cheaper using this method.

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

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

Reviews of the top 4 airlines serving from Bruxelles-National to Denver

 
See real verified KAYAK customer reviews for airlines flying from Brussels to Denver. 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 Bruxelles-National to Denver? 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 9256 reviews
6.6Food
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

8.0 ExcellentAnonymous, Jan 2026
SJD - DEN
Read more United Airlines reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

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

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Everything you need to know for your flight from Bruxelles-National to Denver

Information on your arrival and departure airports