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Belfast Intl

$334+ Cheap flights from Denver (DEN) to Belfast Intl (BFS)

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find flight deals from Denver to Belfast Intl

Cheapest flights from Denver to Belfast Intl
Explore the most affordable flight options available from Denver to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/26. 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.
Tue 11/2511:15 amDEN - BFS
2 stops27h 25mMultiple Airlines
Tue 12/25:30 pmBFS - DEN
2 stops29h 30mMultiple Airlines
Deal found 10/26$1,074
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Wed 12/173:40 pmDEN - BFS
2 stops17h 30mMultiple Airlines
Mon 1/267:20 pmBFS - DEN
2 stops26h 15mMultiple Airlines
Deal found 10/26$1,208
This Mytrip deal was found by Cheapflights users on 10/27. 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 11/221:25 pmDEN - BFS
3 stops26h 15mMultiple Airlines
Sat 11/298:10 amBFS - DEN
3 stops35h 27mMultiple Airlines
Deal found 10/27$1,586

Cheap flight deals from Denver to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Belfast Intl (BFS). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,055
(Mytrip)

One-way from

$334
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$667
Provider with most accurate pricing for Denver Intl-Belfast Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Belfast Intl flights.
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From Denver Intl to Belfast Intl
Search Deals
One-way flight from Denver Intl to Belfast Intl
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Highest demand for flights based on searches. 7% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($68 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Belfast Intl 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 October 28, 2025.
Use the filters below to find and compare flights from Denver to Belfast Intl Airport that are best for you.

Fly from

Denver

Fly to

Belfast Intl

Route

Depart

Return

Price

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 11/25

11:15 am-9:40 pm

2 stops27h 25m

Belfast Intl

Tue 12/2

5:30 pm-4:00 pm

2 stops29h 30m

$1,074

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 1/14

1:25 pm-5:25 pm

3 stops21h 00m

Belfast Intl

Mon 1/19

8:55 pm-7:55 pm

3 stops30h 00m

$1,099

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 12/17

3:40 pm-4:10 pm

2 stops17h 30m

Belfast Intl

Mon 1/26

7:20 pm-2:35 pm

2 stops26h 15m

$1,208

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 11/22

1:25 pm-10:40 pm

3 stops26h 15m

Belfast Intl

Sat 11/29

8:10 am-12:37 pm

3 stops35h 27m

$1,586

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 11/7

9:09 am-2:40 pm

3 stops46h 31m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Compare providers for flights from Denver to Belfast Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Belfast Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Belfast Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Belfast Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Belfast Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Belfast Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Belfast Intl Airport

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

Find hourly flight availability from Denver to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s optimal to fly from Denver to Belfast Intl Airport in the morning. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. 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 Belfast Intl. Reviews last updated October 28, 2025.
Peruse reviews from past customers who have flown with British Airways from Denver to Belfast Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,483 reviews

Boarding

6.9

Crew

7.6

Overall

6.7

Comfort

6.7

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,483 reviews
British Airways
6.7
Okay
7,483 reviews

Boarding

6.9

Crew

7.6

Overall

6.7

Comfort

6.7

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

Find useful and relevant information for your journey from Denver to Belfast Intl. 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 Belfast Intl?

    For a flight from Denver to Belfast Intl, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 0 outbound flights to Belfast Intl per day. 1 airline has flights to Belfast Intl from Denver Intl on a regular basis.

  • What is the cheapest airline to fly from Denver to Belfast Intl Airport round-trip?

    Currently priced at $654, British Airways will fly you from Denver to Belfast Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Users have found that British Airways is 25% cheaper than the other options available to this destination.

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

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

  • How can I find direct flights from Denver to Belfast Intl?

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

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

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

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Alternative routes for Denver to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Belfast City flights

Top airline flying from Denver to Belfast Intl

Discover the top airline that operate flights from Denver to Belfast Intl. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$654Average$913FlexibilityNo cancel feeOn-time70%

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