$324 Find Cheap Flights from Denver to Brussels

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 Brussels departing on 8/1. 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 Brussels

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

Cheapest round-trip
$697
Typical prices: $810-$666
Icelandair
Fri 10/23Tue 10/27
DEN - BRU • 1 stop
Cheapest one-way
$324
Multiple Airlines
Sat 8/1
DEN - CRL • 2 stops
Top airlines
Cheapest • from $697 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 36% compared to booking last minute.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Brussels (DEN-BRU)

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

Fri, Oct 23 - Tue, Oct 27
Icelandair Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
Icelandair Logo
12:50 pm - 7:05 pm
BRU
-
DEN
13h 15m
1 stop
$697Icelandair
Fri, Sep 4 - Sat, Sep 12
Icelandair Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
Icelandair Logo
1:50 pm - 12:40 pm
BRU
-
DEN
30h 50m
1 stop
$712Icelandair
Fri, Sep 11 - Fri, Sep 18
Icelandair Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
Icelandair Logo
1:50 pm - 7:00 pm
BRU
-
DEN
13h 10m
1 stop
$736Icelandair
Mon, Sep 14 - Tue, Sep 29
Multiple Airlines Logo
5:35 pm - 1:15 pm
DEN
-
BRU
11h 40m
1 stop
Multiple Airlines Logo
1:45 pm - 6:45 pm
BRU
-
DEN
13h 00m
1 stop
$770Multiple Airlines
Tue, Oct 6 - Tue, Oct 13
Brussels Airlines Logo
11:25 am - 7:10 am
DEN
-
BRU
11h 45m
1 stop
Brussels Airlines Logo
9:25 am - 6:46 pm
BRU
-
DEN
17h 21m
1 stop
$775Brussels Airlines
Mon, Sep 14 - Tue, Sep 29
Multiple Airlines Logo
5:35 pm - 1:15 pm
DEN
-
BRU
11h 40m
1 stop
Multiple Airlines Logo
10:30 am - 7:29 pm
BRU
-
DEN
16h 59m
2 stops
$779Multiple Airlines
Mon, Aug 3 - Mon, Aug 17
Icelandair Logo
4:40 pm - 12:55 pm
DEN
-
BRU
12h 15m
1 stop
Icelandair Logo
1:50 pm - 12:40 pm
BRU
-
DEN
30h 50m
1 stop
$780Icelandair
Mon, Sep 14 - Tue, Sep 29
Multiple Airlines Logo
11:25 am - 7:10 am
DEN
-
BRU
11h 45m
1 stop
Multiple Airlines Logo
10:30 am - 7:29 pm
BRU
-
DEN
16h 59m
2 stops
$785Multiple Airlines
Mon, Sep 14 - Tue, Sep 29
United Airlines Logo
8:29 pm - 9:00 am
DEN
-
BRU
28h 31m
1 stop
United Airlines Logo
9:25 am - 10:31 am
BRU
-
DEN
33h 06m
1 stop
$787United Airlines
Mon, Sep 14 - Tue, Sep 29
Scandinavian Airlines Logo
6:40 am - 10:40 am
DEN
-
BRU
20h 00m
2 stops
Scandinavian Airlines Logo
10:20 am - 10:35 pm
BRU
-
DEN
20h 15m
2 stops
$792Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Denver to Brussels flights

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Brussels, 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 Denver to Brussels is December, where tickets cost $426 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $690 and $640 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Brussels, 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 Denver to Brussels, you should book around 4 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Cheapest flight$324
Flight from Denver to Charleroi Brussels

When to book flights from Denver to Brussels

Are your dates flexible? Find out the best times to travel from Denver to Brussels 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 flights from Denver to Brussels

  • What is the cheapest flight from Denver to Brussels?

    In the last 3 days, the lowest price for a flight from Denver to Brussels was $324 for a one-way ticket and $697 for a round-trip.

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

    A passport is required to fly from Denver to Brussels.

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

    On your way to Brussels, you’ll fly out from Denver Intl. You’ll be landing in one of Brussels’s 2 airports: Brussels Bruxelles-National or Charleroi Brussels.

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

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

  • Which airline alliances offer flights from Denver to Brussels?

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

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

    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 Brussels.

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

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

    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 Brussels 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 Brussels?

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

Reviews of the top 5 airlines serving from Denver to Brussels

 
See real verified KAYAK customer reviews for airlines flying from Denver to Brussels. 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 Denver to Brussels? 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 9751 reviews
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
6.6Food
Airline reviews

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

10.0 ExcellentAnonymous, May 2026
DEN - PDX
Read more United Airlines reviews

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Everything was better but france airlines more better than them

Good leg room for people of all sizes. Pleasent crew.

WE didint profit of food , but for the other think all was good

Spacious and clean aircraft. Good food. Economy will always be squeezed but thankfully I had an aisle seat for stretching exercises. Good selection of movies, particularly Spike Lee joint.

Unfriendly, 8 hours delayed, no lounge access even flying business. Don’t fly Brussels

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

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

Repurchased food and it was moldy and expensive. But I figured it was bad luck so I purchased a cup-o-noodles, halfway through them we hit turbulence and the flight attendant was passing with the garbage, it would have been two seconds to grab it, but he was snarky grabbed someone else’s plastic cups and went to buckle up… I used the puke bags to secure the soup before it became an accessory. When he finally came around he gave me a face like a petulant child as I handed him the soup neatly wrapped in the paper then plastic bag. I watched a movie in silence as the rental or headphones was ridiculous at 4€ for those .10€ cheap plastic toys. No English subtitles on an American movie… crazy. I disliked the whinny little tourist trap and now I hope that it sinks into the ocean or erupts in a catastrophic eruption for their beloved “I live on an active volcano” pride.

The Check-in process at CDG was confusing and the crew was not helpful. But the flight was on-time and that is most important to me.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Food choices limited & not enticing Seats quite uncomfortable & difficult to control

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

My luggage was lost at the airport but American Airlines contacted me and got it to me the next day.

24 hour delays aren’t even heard in 3rd world countries with archaic transportation systems. I’m never flying American Airlines again.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

All the above categories was great. Seats entirely too cramped.

Flight was good but temp in the cabin was cold.

Departure was delayed leading to late arrival, 25 min wait for a gate. Basically, missed all our connections & had to be rebooted, which was a very long process.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Everything you need to know for your flight from Denver to Brussels

Information on your arrival and departure airports