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Cheap flights from Colorado to Northern Ireland from £256

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Colorado to Northern Ireland

Keep the following information in mind while searching for Colorado to Northern Ireland flight deals. Data was last updated 18 September 2025.

Round-trip from

£695

One-way from

£256

Popular in

December

Cheapest in

November

Average price

£529
Delta
  • Delta
  • 2/10-12/10
  • 4 total stops
  • 44h 01m total
  • Colorado to Northern Ireland
Search Deals
26/9
  • 26/9
  • 3 total stops
  • 26h 26m total
  • Colorado to Northern Ireland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£37 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Colorado to Northern Ireland

Cheapest flights from Colorado to Northern Ireland
Explore the most affordable flight options available from Colorado to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Thu 2/1012:05DEN - BHD
2 stops21h 50mDelta
Sun 12/1006:30BHD - DEN
2 stops22h 11mDelta
Deal found 16/9£695
Thu 2/1018:35DEN - BHD
1 stop31h 15mAer Lingus
Sun 12/1007:00BHD - DEN
2 stops17h 59mAer Lingus
Deal found 16/9£720
Thu 2/1018:35DEN - BHD
1 stop31h 15mBritish Airways
Sun 12/1006:50BHD - DEN
1 stop16h 35mBritish Airways
Deal found 16/9£738
Fri 31/1017:20DEN - BFS
2 stops22h 40mMultiple Airlines
Fri 7/1115:05BFS - DEN
2 stops31h 55mMultiple Airlines
Deal found 15/9£783
Mon 22/1214:45DEN - BHD
2 stops16h 30mMultiple Airlines
Sat 3/111:35BHD - DEN
2 stops19h 19mMultiple Airlines
Deal found 17/9£1,122
Mon 22/1216:55DEN - BHD
2 stops20h 20mBritish Airways
Sat 3/106:35BHD - DEN
1 stop15h 55mBritish Airways
Deal found 17/9£1,186

Cheapflights Fare Finder

 
Customise your flight search to find flights from Colorado 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 18 September 2025.
Use the filters below to find and compare flights from Colorado to Northern Ireland that are best for you.

Fly from

Colorado

Fly to

Northern Ireland

Route

Depart

Return

Price

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

12:05-16:55

2 stops21h 50m

Belfast City

Sun 12/10

06:30-21:41

2 stops22h 11m

£695

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

£720

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

18:35-08:50

1 stop31h 15m

Belfast City

Sun 12/10

06:50-16:25

1 stop16h 35m

£738

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 31/10

17:20-22:00

2 stops22h 40m

Belfast Intl

Fri 7/11

15:05-16:00

2 stops31h 55m

£783

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 22/12

14:45-14:15

2 stops16h 30m

Belfast City

Sat 3/1

11:35-23:54

2 stops19h 19m

£1,122

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 22/12

16:55-20:15

2 stops20h 20m

Belfast City

Sat 3/1

06:35-15:30

1 stop15h 55m

£1,186

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 26/9

23:59-09:25

3 stops26h 26m

£256

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 26/9

23:59-08:10

3 stops49h 11m

£263

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 26/9

12:41-20:45

2 stops25h 04m

£297

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 2/10

14:00-16:55

2 stops19h 55m

£328

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 12 results
1
2

Best time to book a flight from Colorado to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Colorado 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 Colorado to Northern Ireland

How much does it cost for a return flight from Colorado to Northern Ireland?

Related info for your journey

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

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

    There are many flights that can get you from Colorado to Northern Ireland in 21h 50m. Fly via Delta, Aer Lingus, or British Airways to get the fastest option. Colorado and Northern Ireland are separated by a distance of 4347 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Northern Ireland (average of £67). Flying from Colorado 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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Users can book flights with no change fees policies with our dedicated filters. Book flights from Colorado to Northern Ireland flexibly with Cheapflights today.

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