HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belfast City

$398+ Cheap flights from Denver (DEN) to Belfast City (BHD)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BHD
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Belfast City 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 Belfast City

Cheapest flights from Denver to Belfast City
Explore the most affordable flight options available from Denver to Belfast City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Mytrip deal was found by Cheapflights users on 11/5. 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 12/33:40 pmDEN - BHD
2 stops20h 20mMultiple Airlines
Wed 12/107:25 amBHD - DEN
2 stops17h 40mMultiple Airlines
Deal found 11/5$725
This Ovago deal was found by Cheapflights users on 11/5. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:25 pmDEN - BHD
1 stop31h 05mBritish Airways
Wed 12/107:25 pmBHD - DEN
1 stop27h 05mBritish Airways
Deal found 11/5$751

Cheap flight deals from Denver to Belfast City

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Belfast City (BHD). 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 November 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$678
(Cheapflightsfares)

One-way from

$398

Popular in

December

Cheapest in

November

Average price

$634
Provider with most accurate pricing for Denver Intl-Belfast City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Belfast City flights.
Search Deals
From Denver Intl to Belfast City
Search Deals
One-way flight from Denver Intl to Belfast City
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($68 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Belfast City 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 November 6, 2025.
Use the filters below to find and compare flights from Denver to Belfast City Airport that are best for you.

Fly from

Denver

Fly to

Belfast City

Route

Depart

Return

Price

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 4/1

6:40 pm-3:35 pm

1 stop13h 55m

Belfast City

Sun 4/5

3:50 pm-4:35 pm

1 stop31h 45m

$685

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 4/16

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Tue 4/21

8:20 pm-4:35 pm

1 stop27h 15m

$685

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 4/3

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Tue 4/7

6:35 am-4:35 pm

1 stop17h 00m

$686

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 4/1

2:51 pm-1:30 pm

2 stops15h 39m

Belfast City

Tue 4/14

9:35 am-4:35 pm

1 stop14h 00m

$690

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 4/16

5:51 pm-7:20 pm

2 stops18h 29m

Belfast City

Tue 4/21

9:35 am-9:50 pm

2 stops19h 15m

$699

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 1/15

5:25 pm-4:40 pm

1 stop16h 15m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Compare providers for flights from Denver to Belfast City

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 City in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 City Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Belfast City Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Belfast City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Belfast City Airport flights, Cheapflights users trust Expedia the most. Expedia 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 City 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 City

Have a flexible travel schedule? Discover the best time to fly to Belfast City 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.

Reviews of airlines servicing Belfast City

Get insights into the airlines that provide service to Belfast City. 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 City. Reviews last updated November 6, 2025.
Read reviews from past customers who have flown British Airways from Denver to Belfast City Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,500 reviews

Crew

7.6

Food

6.3

Entertainment

6.4

Boarding

6.9

Comfort

6.7

Overall

6.7

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
7,500 reviews
British Airways
6.7
Okay
7,500 reviews

Crew

7.6

Food

6.3

Entertainment

6.4

Boarding

6.9

Comfort

6.7

Overall

6.7

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 City. 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 City?

    Denver Intl (DEN) is the airport you will fly out of if you book a flight from Denver to Belfast City. You should not have trouble finding flights to Belfast City from Denver Intl; the airport handles an average of 0 outbound flights to Belfast City per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Denver airport to Belfast City. 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 Belfast City Airport?

    Departing from Denver to Belfast City Airport will take you 13h 55m. The distance from Denver to Belfast City Airport is about 4347 mi.

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

    According to our current data, British Airways ($608), offers the cheapest pricing from Denver to Belfast City Airport.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Belfast City Airport?

Book flights to Belfast City Airport if you plan to visit one of these locations
Newcastle

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to Belfast City

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

Top airline flying from Denver to Belfast City

Discover the top airline that operate flights from Denver to Belfast City. 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$608Average$628FlexibilityNo cancel feeOn-time70%

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.