HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

Cheap flights from Denver (DEN) to Brussels

DEN — BRU
Nov 16 — Nov 231
Mon 11/16
Mon 11/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Brussels with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Denver to Brussels

Popular in

December

Cheapest in

November

Average price

$807
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Best time to book a flight from Denver to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Denver with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

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

Booking 29 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Brussels. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to Brussels?

Currently, November is the cheapest month in which you can book a flight from Denver to Brussels (average of $525). Flying from Denver to Brussels in December is currently the most expensive (average of $907). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Brussels

See what other customers who have flown with United Airlines,Brussels Airlines, andIcelandair from Denver to Brussels have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,381 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
10,381 reviews
United Airlines
7.4
Good
10,381 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Brussels Airlines
7.3
Good
435 reviews
United Airlines
7.4
Good
10,381 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Icelandair
6.9
Okay
758 reviews
United Airlines
7.4
Good
10,381 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Lufthansa
6.8
Okay
8,278 reviews
United Airlines
7.4
Good
10,381 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
8,263 reviews
United Airlines
7.4
Good
10,381 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

  • What airport do you fly from for flights from Denver to Brussels?

    Denver Intl (DEN) is the airport you will fly out of if you book a flight from Denver to Brussels. You should not have trouble finding flights to Brussels from Denver Intl; the airport handles an average of 0 outbound flights to Brussels per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Denver airport to Brussels. It is only a 18.5 mi journey to Denver Intl (DEN) from Denver’s city center.

  • What are the cheapest airlines flying from Denver to Brussels round-trip?

    Our cheapest airline available from Denver to Brussels is Icelandair. Our recent data shows that you can find tickets from as low as $466 on this airline. Additional options worth looking into are British Airways and Brussels Airlines, starting at $492 and $593 round-trip. Icelandair is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Denver to Brussels one-way?

    The cheapest airlines for a one-way flight from Denver to Brussels are Icelandair ($240), British Airways ($334), and United Airlines ($344).

  • Can I find deals for flights from Denver to Brussels that include hotel bookings?

    Yes. In addition to deals on Denver to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Brussels.

  • Can I find deals for business class flights from Denver to Brussels?

    Yes. Cheapflights offers flight deals from Denver to Brussels by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Brussels?

    Currently, November is the cheapest month in which you can book a flight from Denver to Brussels (average of $525). Flying from Denver to Brussels in December is currently the most expensive (average of $907). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Denver to Brussels

Denver to Bruxelles-National flights

Top 6 airlines flying from Denver to Brussels

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$466Average$694FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$492Average$804FlexibilityNo cancel feeOn-time70%
Brussels AirlinesCheapest$593Average$1,057FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$623Average$805FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$656Average$870FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$698Average$766FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.