$269 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 5/5. 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
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
$602
Typical prices: $845-$650
Turkish Airlines
Sat 4/25Tue 4/28
DEN - BRU • 1 stop
Cheapest one-way
$269
Multiple Airlines
Tue 5/5
DEN - CRL • 3 stops
Top airlines
Cheapest • from $602 (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

Sat, Apr 25 - Tue, Apr 28
Turkish Airlines Logo
8:25 pm - 10:10 am
DEN
-
BRU
29h 45m
1 stop
Turkish Airlines Logo
7:20 am - 6:25 pm
BRU
-
DEN
19h 05m
1 stop
$602Turkish Airlines
Sun, Apr 26 - Sun, May 3
Turkish Airlines Logo
8:25 pm - 5:55 pm
DEN
-
BRU
37h 30m
1 stop
Turkish Airlines Logo
7:20 am - 6:25 pm
BRU
-
DEN
19h 05m
1 stop
$630Turkish Airlines
Tue, Oct 6 - Tue, Oct 13
Turkish Airlines Logo
8:25 pm - 1:25 pm
DEN
-
BRU
33h 00m
1 stop
Turkish Airlines Logo
7:20 am - 6:25 pm
BRU
-
DEN
19h 05m
1 stop
$652Turkish Airlines
Tue, Sep 1 - Thu, Sep 10
Turkish Airlines Logo
8:25 pm - 9:25 pm
DEN
-
BRU
17h 00m
1 stop
Turkish Airlines Logo
7:20 am - 6:25 pm
BRU
-
DEN
19h 05m
1 stop
$655Turkish Airlines
Tue, Oct 6 - Tue, Oct 13
Turkish Airlines Logo
8:25 pm - 10:10 am
DEN
-
BRU
29h 45m
1 stop
Turkish Airlines Logo
7:20 am - 6:25 pm
BRU
-
DEN
19h 05m
1 stop
$659Turkish Airlines
Sat, Apr 25 - Wed, Apr 29
Turkish Airlines Logo
8:25 pm - 9:25 pm
DEN
-
BRU
17h 00m
1 stop
Turkish Airlines Logo
6:50 pm - 6:25 pm
BRU
-
DEN
31h 35m
1 stop
$665Turkish Airlines
Thu, Oct 1 - Mon, Oct 12
Turkish Airlines Logo
8:25 pm - 9:25 pm
DEN
-
BRU
17h 00m
1 stop
Turkish Airlines Logo
6:50 pm - 6:25 pm
BRU
-
DEN
31h 35m
1 stop
$666Turkish Airlines
Sat, Sep 26 - Sun, Oct 4
Turkish Airlines Logo
8:25 pm - 9:25 pm
DEN
-
BRU
17h 00m
1 stop
Turkish Airlines Logo
7:20 am - 6:25 pm
BRU
-
DEN
19h 05m
1 stop
$672Turkish Airlines
Mon, May 18 - Thu, May 28
Multiple Airlines Logo
8:00 pm - 8:25 am
DEN
-
CRL
28h 25m
1 stop
Multiple Airlines Logo
10:15 am - 8:57 am
CRL
-
DEN
30h 42m
2 stops
$1,103Multiple Airlines
Tue, May 12 - Tue, May 19
Multiple Airlines Logo
11:25 am - 2:35 pm
DEN
-
CRL
19h 10m
2 stops
Multiple Airlines Logo
6:55 am - 7:00 pm
CRL
-
DEN
20h 05m
2 stops
$1,125Multiple 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 April.

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 April, where tickets cost $680 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $887 and $881 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 11 weeks before departure.

Good to know

Cheapest flight$269
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 $269 for a one-way ticket and $602 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 9582 reviews
6.6Food
8.1Crew
7.3Comfort
7.1Entertainment
7.7Boarding
Airline reviews

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

10.0 ExcellentMargaret, Apr 2026
DEN - ORD
Read more United Airlines reviews

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

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

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

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

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.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Even if you wait for connecting passengers you should not be an hour late departing waiting their luggage. Your passengers may have connections in the other end and you harm them.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

Nice aircraft. Good crew. Delayed departure from Houston, but arrived on time in London. Main thing I don’t like about flying BA is having to transit through security in London Heathrow. A major pain!

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

We paid for Business Class seats, but system did not have us and they were not available.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

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

Information on your arrival and departure airports