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$632+ Cheap flights from Denver (DEN) to Brussels

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BRU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Brussels are usually found in January or November, booked 75 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Denver to Brussels

Cheapest flights from Denver to Brussels
Explore the most affordable flight options available from Denver to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This FlightHub deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:20 pmDEN - BRU
1 stop18h 50mTurkish Airlines
Fri 12/266:30 pmBRU - DEN
1 stop31h 05mTurkish Airlines
Deal found 12/16$1,712
This FlightHub deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:30 pmDEN - BRU
2 stops30h 20mMultiple Airlines
Tue 12/3010:00 amBRU - DEN
1 stop17h 55mMultiple Airlines
Deal found 12/16$1,728
This Cheapflightsfares deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:35 pmDEN - BRU
2 stops18h 20mLufthansa
Tue 12/3010:30 amBRU - DEN
2 stops16h 58mLufthansa
Deal found 12/18$1,753
This Cheapflightsfares deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1811:20 amDEN - BRU
1 stop13h 35mLufthansa
Wed 12/247:00 amBRU - DEN
1 stop14h 40mLufthansa
Deal found 12/15$1,761
This Cheapflightsfares deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:35 pmDEN - BRU
2 stops14h 40mMultiple Airlines
Fri 12/261:50 pmBRU - DEN
1 stop13h 05mMultiple Airlines
Deal found 12/16$1,794
This Cheapflightsfares deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:45 pmDEN - BRU
2 stops18h 55mLufthansa
Mon 12/297:00 amBRU - DEN
1 stop14h 40mLufthansa
Deal found 12/16$1,813

Find flight deals from Denver to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Round-trip from

$621
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$881
From Denver Intl to Brussels
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Brussels that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Denver to Brussels that are best for you.

Fly from

Denver

Fly to

Brussels

Route

Depart

Return

Price

DenverBrussels

DEN - BRU

DENBRU

Denver Intl

Sun 4/19

8:25 pm-9:25 pm

1 stop17h 00m

Brussels Bruxelles-National

Sat 4/25

2:25 pm-6:25 pm

1 stop36h 00m

$650

DenverBrussels

DEN - BRU

DENBRU

Denver Intl

Mon 2/2

1:10 pm-7:50 pm

2 stops22h 40m

Brussels Bruxelles-National

Fri 2/6

3:10 pm-12:28 am

2 stops41h 18m

$665

DenverBrussels

DEN - BRU

DENBRU

Denver Intl

Mon 4/27

6:30 am-8:30 pm

2 stops30h 00m

Brussels Bruxelles-National

Wed 5/13

10:20 am-10:58 pm

2 stops20h 38m

$667

DenverBrussels

DEN - BRU

DENBRU

Denver Intl

Sat 3/14

8:20 pm-2:15 pm

1 stop34h 55m

Brussels Bruxelles-National

Wed 3/25

3:15 pm-6:35 pm

1 stop34h 20m

$693

DenverBrussels

DEN - BRU

DENBRU

Denver Intl

Tue 2/24

12:55 pm-9:40 am

2 stops36h 45m

Brussels Bruxelles-National

Sat 2/28

10:20 am-10:37 pm

2 stops20h 17m

$695

DenverBrussels

DEN - BRU

DENBRU

Denver Intl

Mon 4/27

6:15 am-10:10 am

2 stops19h 55m

Brussels Bruxelles-National

Wed 5/13

6:50 pm-6:25 pm

1 stop31h 35m

$866

DenverBrussels

DEN - CRL

DENCRL

Denver Intl

Thu 4/9

1:25 pm-4:30 pm

2 stops19h 05m

Charleroi Brussels

Mon 4/13

2:25 pm-2:20 pm

2 stops31h 55m

$871

DenverBrussels

DEN - BRU

DENBRU

Denver Intl

Wed 3/11

6:35 pm-1:15 pm

1 stop11h 40m

Brussels Bruxelles-National

Fri 3/27

10:00 am-7:55 pm

1 stop16h 55m

$882

DenverBrussels

DEN - CRL

DENCRL

Denver Intl

Thu 1/8

1:25 pm-12:35 pm

2 stops15h 10m

Charleroi Brussels

Wed 1/21

3:10 pm-5:35 pm

2 stops34h 25m

$1,231

DenverBrussels

DEN - CRL

DENCRL

Denver Intl

Sun 1/4

1:25 pm-12:45 pm

2 stops15h 20m

Charleroi Brussels

Tue 1/20

8:40 am-6:05 pm

2 stops17h 25m

$1,430

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 11 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Brussels. Price data was last updated on December 12, 2025.

Booking 74 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, May is the cheapest month in which you can book a flight from Denver to Brussels (average of $496). Flying from Denver to Brussels in June is currently the most expensive (average of $709). 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.

What is the cheapest time of day to fly from DEN to BRU?

Find hourly flight availability from Denver to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s optimal to fly from Denver to Brussels in the morning. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Denver to Brussels. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Denver to Brussels flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Denver to Brussels?

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated December 18, 2025.
See what other customers who have flown with United Airlines, Turkish Airlines, and Aer Lingus 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
9,092 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Turkish Airlines
7.3
Good
4,106 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Aer Lingus
7.2
Good
1,395 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Icelandair
7.0
Good
591 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Lufthansa
6.8
Okay
7,634 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Related info for your journey

Find useful and relevant information for your journey from Denver to Brussels. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 7 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.

  • How long is the flight from Denver to Brussels?

    There are many flights that can get you from Denver to Brussels in 17h. Fly via Turkish Airlines or Scandinavian Airlines to get the fastest option. The distance from Denver to Brussels is about 4848 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $496 on this airline. Additional options worth looking into are Turkish Airlines and British Airways, starting at $545 and $636 round-trip. Icelandair is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, May is the cheapest month in which you can book a flight from Denver to Brussels (average of $496). Flying from Denver to Brussels in June is currently the most expensive (average of $709). 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

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Alternative routes for Denver to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Bruxelles-National flights
Colorado Springs to Bruxelles-National flights
Denver to Charleroi Brussels flights
Denver to Antwerp flights

Top 7 airlines flying from Denver to Brussels

Discover the top 7 airlines that operate flights from Denver to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$496Average$718FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$545Average$626FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$636Average$844FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$640Average$878FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$642Average$833FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$691Average$757FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$694Average$908FlexibilityNo cancel feeOn-timeN/A

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