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Cheap flights from Denver to Northern Ireland from £331

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Denver to Northern Ireland

Keep the following information in mind while searching for Denver to Northern Ireland flight deals. Data was last updated 12 September 2025.

Round-trip from

£641

One-way from

£331

Popular in

December

Cheapest in

February

Average price

£516
Delta
  • Delta
  • 2/10-12/10
  • 4 total stops
  • 47h 59m total
  • Denver to Northern Ireland
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KLM
  • KLM
  • 2/10
  • 2 total stops
  • 19h 55m total
  • Denver to Northern Ireland
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£52 potential increase over avg. return price).
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Cheapest flight prices on average. 8% potential price decrease (£38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Denver to Northern Ireland

Cheapest flights from Denver to Northern Ireland
Explore the most affordable flight options available from Denver to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Thu 2/1014:00DEN - BHD
2 stops24h 15mDelta
Sun 12/1006:30BHD - DEN
2 stops23h 44mDelta
Deal found 10/9£641
Thu 2/1018:35DEN - BHD
1 stop31h 15mAer Lingus
Sun 12/1007:00BHD - DEN
2 stops17h 59mAer Lingus
Deal found 12/9£665
Thu 2/1018:35DEN - BHD
1 stop31h 15mBritish Airways
Sun 12/1006:50BHD - DEN
1 stop16h 35mBritish Airways
Deal found 10/9£680
Mon 27/1016:40DEN - BFS
3 stops23h 50mMultiple Airlines
Mon 3/1106:30BFS - DEN
2 stops18h 35mMultiple Airlines
Deal found 12/9£899
Sun 12/1012:15DEN - BFS
2 stops19h 40mMultiple Airlines
Mon 20/1008:10BFS - DEN
2 stops16h 49mMultiple Airlines
Deal found 12/9£958
Sat 4/1018:35DEN - BHD
1 stop13h 30mBritish Airways
Wed 8/1020:15BHD - DEN
1 stop27h 10mBritish Airways
Deal found 11/9£1,049
Sat 4/1018:25DEN - BHD
2 stops39h 30mDelta
Wed 8/1006:30BHD - DEN
2 stops16h 12mDelta
Deal found 10/9£1,084
Sat 4/1010:31DEN - BHD
2 stops18h 44mAmerican Airlines
Wed 8/1006:50BHD - DEN
1 stop16h 35mAmerican Airlines
Deal found 9/9£1,198

Cheapflights Fare Finder

 
Customise your flight search to find flights from Denver to Northern Ireland 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 858,174 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Denver to Northern Ireland that are best for you.

Fly from

Denver

Fly to

Northern Ireland

Route

Depart

Return

Price

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

14:00-21:15

2 stops24h 15m

Belfast City

Sun 12/10

06:30-23:14

2 stops23h 44m

£641

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

18:35-08:50

1 stop31h 15m

Belfast City

Sun 12/10

07:00-17:59

2 stops17h 59m

£665

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

16:36-08:50

2 stops33h 14m

Belfast City

Sun 12/10

06:50-16:25

1 stop16h 35m

£701

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 27/10

16:40-22:30

3 stops23h 50m

Belfast Intl

Mon 3/11

06:30-18:05

2 stops18h 35m

£899

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 12/10

12:15-14:55

2 stops19h 40m

Belfast Intl

Mon 20/10

08:10-17:59

2 stops16h 49m

£958

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 4/10

18:35-17:15

1 stop15h 40m

Belfast City

Wed 8/10

13:50-16:25

1 stop33h 35m

£1,049

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 4/10

18:25-16:55

2 stops39h 30m

Belfast City

Wed 8/10

06:30-15:42

2 stops16h 12m

£1,084

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 4/10

10:31-12:15

2 stops18h 44m

Belfast City

Wed 8/10

06:50-16:25

1 stop16h 35m

£1,198

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

14:00-16:55

2 stops19h 55m

£331

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

18:35-08:50

1 stop31h 15m

£440

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 11 results
1
2

Best time to book a flight from Denver to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Denver with our price prediction graph.
Estimated return 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 Northern Ireland
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Denver to Northern Ireland. 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 Northern Ireland?

    Located just 18.5 mi from the city center, Denver Intl (DEN) is the airport most travelers will use when flying to Northern Ireland from Denver.

  • How long is the flight from Denver to Northern Ireland?

    Airlines like Delta, Aer Lingus, and British Airways fly from Denver to Northern Ireland in about 24h 15m. The time it takes to get you to your destination can typically vary by up to 8h 59m. There are 4347 mi between Denver and Northern Ireland. Both multi-stop and direct flights can be found to your destination and back.

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

    Yes. In addition to deals on Denver to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Denver to Northern Ireland?

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

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

    Yes. Cheapflights offers flight deals from Denver to Northern Ireland 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 Northern Ireland?

    Currently, January is the cheapest month in which you can book a flight from Denver to Northern Ireland (average of £67). Flying from Denver to Northern Ireland in July is currently the most expensive (average of £90). 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

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Can Cheapflights find flights from Denver to Northern Ireland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Denver to Northern Ireland, users can toggle the no change fees filter when performing a flight search.

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Of course! You can now track prices for flights from Denver to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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