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Cheap flights from Colorado to Northern Ireland from £270

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Colorado to Northern Ireland

Enter your travel dates to find the best prices.

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 10 August 2026.

Sun 15/1117:01 -
1 stop13h 54m
Wed 18/1106:35 -
1 stop15h 35m
Deal found 6/8£704
Wed 28/1016:40 -
2 stops19h 20m
Mon 2/1120:50 -
3 stops30h 37m
Deal found 8/8£720
Wed 28/1018:01 -
1 stop14h 34m
Mon 2/1119:25 -
1 stop26h 45m
Deal found 8/8£726
Mon 7/918:40 -
1 stop13h 50m
Mon 14/915:20 -
1 stop32h 10m
Deal found 7/8£771
Mon 31/818:40 -
1 stop13h 50m
Fri 11/906:30 -
1 stop17h 00m
Deal found 10/8£778
Tue 1/914:21 -
2 stops20h 14m
Fri 11/906:30 -
1 stop17h 00m
Deal found 6/8£789
Tue 1/914:21 -
2 stops17h 59m
Tue 15/918:20 -
1 stop29h 10m
Deal found 6/8£796
Sun 13/916:40 -
2 stops21h 50m
Sun 20/920:25 -
3 stops33h 43m
Deal found 8/8£799
Sat 21/1111:20 -
3 stops25h 15m
Sat 28/1106:00 -
2 stops35h 30m
Deal found 6/8£915
Sun 9/811:25 -
3 stops25h 15m
Sun 16/806:45 -
3 stops35h 35m
Deal found 9/8£1,229

Find 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 10 August 2026.

Round-trip from

£704

One-way from

£270
British Airways
  • British Airways
  • 15/11-18/11
  • 2 total stops
  • 29h 29m total
  • Colorado to Northern Ireland
Search Deals
7/9
  • 7/9
  • 2 total stops
  • 15h 50m total
  • Colorado to Northern Ireland
Search Deals

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 10 August 2026.
Use the filters below to find and compare flights from Colorado to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Sun 15/11

17:01-13:55

1 stop13h 54m

Belfast City

Wed 18/11

06:35-15:10

1 stop15h 35m

£704
Fastest return journey

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Wed 28/10

18:01-14:35

1 stop14h 34m

Belfast City

Mon 2/11

09:25-15:10

1 stop12h 45m

£736

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Wed 28/10

16:40-17:15

2 stops18h 35m

Belfast Intl

Mon 2/11

22:05-14:30

2 stops23h 25m

£776

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Sun 13/9

16:40-21:30

2 stops21h 50m

Belfast Intl

Sun 20/9

20:25-23:08

3 stops33h 43m

£799

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Mon 31/8

18:40-17:30

1 stop15h 50m

Belfast City

Fri 11/9

06:30-20:35

2 stops21h 05m

£805

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Sat 17/10

15:14-15:05

2 stops16h 51m

Belfast City

Sat 24/10

19:05-16:10

1 stop28h 05m

£826

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Sun 31/1

12:17-13:55

2 stops18h 38m

Belfast City

Wed 3/2

09:15-15:10

1 stop12h 55m

£877

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Sat 21/11

11:20-19:35

3 stops25h 15m

Belfast Intl

Sat 28/11

06:00-10:30

2 stops35h 30m

£915
Cheapest one-way

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Mon 7/9

16:40-15:30

2 stops15h 50m

£270

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Mon 7/9

16:40-20:30

2 stops20h 50m

£293

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 12 resultsSorted by cheapest first
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

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 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 13h 54m. Fly via British Airways to get the fastest option. Colorado and Northern Ireland are separated by a distance of 4347 mi.

  • 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.

See more FAQs

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Alternative routes for Colorado to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Colorado to Northern Ireland?

Cheapflights helps you search for flights from Colorado to Northern Ireland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Colorado to Northern Ireland?

Cheapflights simply makes it quick and affordable to book flights from Colorado to Northern Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

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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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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