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$361+ Cheap flights from Brussels to Denver (DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — DEN
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Brussels to Denver Intl are usually found in September or October, booked 46 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Brussels to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Brussels (BR1) to Denver (DEN). 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 September 25, 2025.

Round-trip from

$552
(AirNGo)

One-way from

$361
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$614
From Brussels to Denver Intl
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One-way flight from Brussels to Denver Intl
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Highest demand for flights based on searches. 4% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Brussels to Denver

Cheapest flights from Brussels to Denver
Explore the most affordable flight options available from Brussels to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This AirNGo deal was found by Cheapflights users on 9/23. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/31:50 pmBRU - DEN
1 stop13h 05mIcelandair
Sun 10/194:40 pmDEN - BRU
1 stop12h 10mIcelandair
Deal found 9/23$539
This AirNGo deal was found by Cheapflights users on 9/24. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:50 pmBRU - DEN
1 stop13h 15mIcelandair
Wed 11/263:40 pmDEN - BRU
1 stop12h 15mIcelandair
Deal found 9/24$552
This Booking.com deal was found by Cheapflights users on 9/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:50 pmBRU - DEN
1 stop13h 15mIcelandair
Thu 12/43:40 pmDEN - BRU
1 stop12h 15mIcelandair
Deal found 9/25$595
This Flighttix deal was found by Cheapflights users on 9/25. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:50 amBRU - DEN
1 stop13h 40mBritish Airways
Fri 11/1412:32 pmDEN - BRU
2 stops14h 18mBritish Airways
Deal found 9/25$599
This Flighttix deal was found by Cheapflights users on 9/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:15 amBRU - DEN
1 stop13h 15mBritish Airways
Wed 11/2612:12 pmDEN - BRU
2 stops17h 38mBritish Airways
Deal found 9/24$600
This American Airlines deal was found by Cheapflights users on 9/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:00 pmBRU - DEN
1 stop32h 30mAmerican Airlines
Wed 11/2612:12 pmDEN - BRU
2 stops17h 38mAmerican Airlines
Deal found 9/25$605
This American Airlines deal was found by Cheapflights users on 9/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:30 pmBRU - DEN
1 stop30h 00mAmerican Airlines
Sun 11/165:25 pmDEN - BRU
1 stop12h 25mAmerican Airlines
Deal found 9/24$606
This Icelandair deal was found by Cheapflights users on 9/23. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:50 pmBRU - DEN
1 stop13h 15mIcelandair
Thu 11/273:40 pmDEN - BRU
1 stop12h 15mIcelandair
Deal found 9/23$607
This Finnair deal was found by Cheapflights users on 9/23. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:35 pmBRU - DEN
1 stop26h 55mMultiple Airlines
Thu 12/45:25 pmDEN - BRU
1 stop15h 35mMultiple Airlines
Deal found 9/23$608
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:45 pmCRL - DEN
2 stops38h 19mMultiple Airlines
Sun 10/197:55 pmDEN - CRL
1 stop12h 50mMultiple Airlines
Deal found 9/23$1,039
This Mytrip deal was found by Cheapflights users on 9/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:15 pmCRL - DEN
2 stops35h 40mMultiple Airlines
Sat 10/181:25 pmDEN - CRL
2 stops16h 35mMultiple Airlines
Deal found 9/24$1,273
This Mytrip deal was found by Cheapflights users on 9/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/188:35 pmCRL - DEN
2 stops29h 20mMultiple Airlines
Sat 10/257:55 pmDEN - CRL
2 stops19h 10mMultiple Airlines
Deal found 9/23$1,343

Cheapflights Fare Finder

 
Customize your flight search to find flights from Brussels to Denver 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 September 25, 2025.
Use the filters below to find and compare flights from Brussels to Denver that are best for you.

Fly from

Brussels

Fly to

Denver

Route

Depart

Return

Price

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Thu 11/13

12:50 pm-6:05 pm

1 stop13h 15m

Denver Intl

Wed 11/26

3:40 pm-11:55 am

1 stop12h 15m

$552

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Fri 11/7

9:20 pm-3:30 pm

1 stop26h 10m

Denver Intl

Fri 11/14

5:25 pm-5:20 pm

1 stop15h 55m

$599

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Thu 2/12

10:15 am-3:30 pm

1 stop13h 15m

Denver Intl

Sun 2/22

9:00 am-10:50 am

2 stops17h 50m

$605

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Thu 11/13

3:00 pm-3:30 pm

1 stop32h 30m

Denver Intl

Wed 11/26

12:12 pm-1:50 pm

2 stops17h 38m

$605

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Thu 11/13

10:15 am-3:30 pm

1 stop13h 15m

Denver Intl

Wed 11/26

12:12 pm-1:50 pm

2 stops17h 38m

$605

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Fri 11/14

12:50 pm-6:05 pm

1 stop13h 15m

Denver Intl

Thu 11/27

3:40 pm-11:55 am

1 stop12h 15m

$607

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Thu 11/13

8:35 pm-3:30 pm

1 stop26h 55m

Denver Intl

Thu 12/4

5:25 pm-5:00 pm

1 stop15h 35m

$608

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Thu 2/12

10:15 am-3:30 pm

1 stop13h 15m

Denver Intl

Sun 2/22

5:25 pm-4:40 pm

1 stop15h 15m

$608

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Sat 2/21

9:55 am-3:30 pm

1 stop13h 35m

Denver Intl

Sat 2/28

5:25 pm-4:35 pm

1 stop15h 10m

$608

BrusselsDenver

BRU - DEN

BRUDEN

Brussels Bruxelles-National

Wed 2/11

8:30 pm-3:30 pm

1 stop27h 00m

Denver Intl

Sun 2/22

5:25 pm-7:55 pm

1 stop18h 30m

$608

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/23

Showing 1-10 of 30 results
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Best time to book a flight from Brussels to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Brussels 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 Brussels to Denver

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

Use this chart to determine the optimal time to book a round-trip flight from Brussels to Denver. Price data was last updated on September 19, 2025.

The best time to book flights from Brussels to Denver is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Brussels to Denver (average of $197). Flying from Brussels to Denver in March is currently the most expensive (average of $278). 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 BRU to DEN?

Find hourly flight availability from Brussels to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 25, 2025.

One of the essential ways to save on airfare from Brussels to Denver is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 13% on airfare.

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

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated September 25, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Brussels Airlines from Brussels to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Brussels Airlines
7.2
Good
361 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
7,424 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,399 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Brussels to Denver. 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 into for flights to Denver from Brussels?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Denver from Brussels. Booking flights from Brussels to Denver Intl (DEN) should be relatively easy as there are 0 daily inbound flights from Brussels from 5 different airlines.

  • How long is the flight from Brussels to Denver?

    For as low as $552, Icelandair can have you in Denver from Brussels in 13h 15m. There are 4848 mi between Brussels and Denver. This flight may include one or multiple stops.

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

    Currently priced at $540, American Airlines will fly you from Brussels to Denver and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and United Airlines - these airlines can fly you to your destination from $544 and $615, respectively. American Airlines is currently priced 20% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Brussels to Denver 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 Brussels to Denver?

    Currently, October is the cheapest month in which you can book a flight from Brussels to Denver (average of $197). Flying from Brussels to Denver in March is currently the most expensive (average of $278). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Golden
Broomfield
Winter Park
Lakewood
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Alternative routes for Brussels to Denver

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

Top 5 airlines flying from Brussels to Denver

Discover the top 5 airlines that operate flights from Brussels to Denver. 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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$540Average$647FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$544Average$688FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$615Average$688FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$636Average$671FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$636Average$800FlexibilityNo cancel feeOn-time76%

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