Find flights
When to book
FAQs

Cheap flights from Colorado to Northern Ireland from £300

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 4 November 2025.

Wed 17/1217:25DEN - BHD
1 stop31h 05mBritish Airways
Wed 24/1209:15BHD - DEN
1 stop13h 15mBritish Airways
Deal found 1/11£757
Sat 8/1117:45DEN - BFS
2 stops21h 55mMultiple Airlines
Wed 12/1118:25BFS - DEN
3 stops30h 40mMultiple Airlines
Deal found 3/11£881
Wed 5/1117:25DEN - BHD
1 stop16h 10mBritish Airways
Fri 7/1107:00BHD - DEN
2 stops39h 30mBritish Airways
Deal found 1/11£900
Wed 5/1115:40DEN - BFS
2 stops19h 15mMultiple Airlines
Fri 7/1106:30BFS - DEN
2 stops18h 35mMultiple Airlines
Deal found 1/11£900
Sat 8/1115:40DEN - BHD
2 stops19h 55mMultiple Airlines
Wed 12/1107:25BHD - DEN
2 stops17h 40mMultiple Airlines
Deal found 3/11£938
Wed 5/1111:15DEN - BHD
3 stops19h 35mMultiple Airlines
Fri 7/1107:20BHD - DEN
2 stops17h 45mMultiple Airlines
Deal found 1/11£979
Sat 8/1117:25DEN - BHD
1 stop33h 40mAer Lingus
Wed 12/1114:35BHD - DEN
1 stop31h 55mAer Lingus
Deal found 3/11£983
Wed 17/1213:59DEN - BHD
2 stops19h 51mKLM
Wed 24/1206:30BHD - DEN
2 stops17h 14mKLM
Deal found 1/11£994
Sat 8/1117:25DEN - BHD
1 stop16h 20mBritish Airways
Wed 12/1118:00BHD - DEN
2 stops28h 30mBritish Airways
Deal found 3/11£1,032

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 4 November 2025.

Round-trip from

£505

One-way from

£300

Popular in

December

Cheapest in

November

Average price

£483
British Airways
  • British Airways
  • 14/2-22/2
  • 3 total stops
  • 42h 58m total
  • Colorado to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 15/1
  • 1 total stop
  • 16h 15m total
  • Colorado to Northern Ireland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£41 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 4 November 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

Sat 14/2

17:25-16:45

1 stop16h 20m

Belfast City

Sun 22/2

20:25-15:30

1 stop26h 05m

£506

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 13/2

17:25-14:15

1 stop13h 50m

Belfast City

Sun 22/2

20:25-15:30

1 stop26h 05m

£506

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 16/4

18:40-15:30

1 stop13h 50m

Belfast City

Tue 21/4

09:35-16:35

1 stop14h 00m

£518

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 2/5

18:40-17:15

1 stop15h 35m

Belfast City

Sun 10/5

06:50-16:35

1 stop16h 45m

£522

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 1/5

18:40-15:30

1 stop13h 50m

Belfast City

Sun 10/5

11:00-16:35

1 stop12h 35m

£522

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 3/5

18:40-17:45

1 stop16h 05m

Belfast City

Mon 11/5

19:30-16:35

1 stop28h 05m

£522

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 2/5

18:40-15:05

1 stop13h 25m

Belfast City

Sat 9/5

19:00-16:35

1 stop28h 35m

£522

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 30/4

18:40-15:30

1 stop13h 50m

Belfast City

Wed 6/5

20:15-16:35

1 stop27h 20m

£522

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 29/4

18:40-13:30

1 stop11h 50m

Belfast City

Wed 6/5

13:50-16:35

1 stop33h 45m

£522

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 1/5

18:40-15:30

1 stop13h 50m

Belfast City

Tue 12/5

18:15-16:35

1 stop29h 20m

£522

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 16 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
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 16h 20m. 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

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 Colorado to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to London City flights
Boston to Heathrow flights
Newark to Gatwick flights
Dulles Intl to Heathrow flights
LaGuardia to Heathrow flights
Los Angeles to Heathrow flights
John F Kennedy Intl to Stansted flights
LaGuardia to Gatwick flights
San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
Newark to London City flights
Dallas/Fort Worth to Heathrow flights
Baltimore to Heathrow flights
Newark to Stansted flights
Newark to Luton flights
Seattle to Heathrow flights
Boston to Gatwick flights
Boston to London City flights
Atlanta to Heathrow flights
Miami to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Los Angeles to Gatwick flights
Dulles Intl to London City flights
Boston to Stansted flights
Orlando to Heathrow flights
Denver to Heathrow flights
Hobby to Heathrow flights
San Francisco to Gatwick flights
Philadelphia to Heathrow flights
Newark to Edinburgh flights
O'Hare Intl to Gatwick flights
Reagan-National to Gatwick flights
Boston to Luton flights
Minneapolis to Heathrow flights
Baltimore to Gatwick flights
Los Angeles to London City flights
O'Hare Intl to London City flights
San Francisco to London City flights
John F Kennedy Intl to Edinburgh flights
Charlotte to Heathrow flights
Detroit to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Los Angeles to Stansted flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

Can Cheapflights notify me if prices for flights from Colorado to Northern Ireland become cheaper?

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!

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.