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$339+ Cheap flights from Colorado to Northern Ireland

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Round-trip from

$686
(Cheapflightsfares)

One-way from

$339
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$674
From Colorado to Northern Ireland
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One-way flight from Colorado to Northern Ireland
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Highest demand for flights based on searches. 7% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($61 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:35 pmDEN - BHD
1 stop19h 10mBritish Airways
Sun 10/126:50 amBHD - DEN
1 stop16h 35mBritish Airways
Deal found 3/30$672
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/812:31 pmDEN - BHD
2 stops17h 29mAmerican Airlines
Mon 9/86:40 amBHD - DEN
1 stop16h 45mAmerican Airlines
Deal found 3/30$694
This Finnair deal was found by Cheapflights users on 3/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:35 pmDEN - BHD
1 stop17h 45mMultiple Airlines
Sun 10/123:50 pmBHD - DEN
2 stops32h 52mMultiple Airlines
Deal found 3/30$699
This Mytrip deal was found by Cheapflights users on 3/30. 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.
Sun 4/275:40 pmDEN - BFS
2 stops21h 40mMultiple Airlines
Sun 5/410:10 pmBFS - DEN
3 stops44h 17mMultiple Airlines
Deal found 3/30$922
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/37:55 pmDEN - BHD
2 stops30h 20mAer Lingus
Sat 5/107:00 pmBHD - DEN
1 stop28h 25mAer Lingus
Deal found 3/30$931

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated March 31, 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

Sun 4/27

6:35 pm-6:45 pm

1 stop17h 10m

Belfast City

Sun 5/4

6:50 am-4:25 pm

1 stop16h 35m

$686

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 5/1

12:07 pm-1:15 pm

2 stops18h 08m

Belfast City

Sat 5/10

7:05 am-4:25 pm

1 stop16h 20m

$694

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 4/29

6:35 pm-7:25 pm

1 stop17h 50m

Belfast City

Mon 5/12

7:05 am-11:29 pm

2 stops23h 24m

$898

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 4/27

5:40 pm-10:20 pm

2 stops21h 40m

Belfast Intl

Sun 5/4

10:10 pm-11:27 am

3 stops44h 17m

$922

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 5/3

7:55 pm-9:15 am

2 stops30h 20m

Belfast City

Sat 5/10

7:00 pm-4:25 pm

1 stop28h 25m

$931

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 4/28

4:40 pm-11:40 am

2 stops36h 00m

$339

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 4/28

4:40 pm-5:20 pm

2 stops17h 40m

$339

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 4/29

6:35 pm-5:30 pm

1 stop15h 55m

$410

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 5/4

11:59 am-4:55 pm

2 stops21h 56m

$431

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 5/3

2:25 pm-4:55 pm

2 stops19h 30m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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 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.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Northern Ireland

What is the cheapest month to book a flight from Colorado to Northern Ireland?

Currently, February is the cheapest month in which you can book a flight from Colorado to Northern Ireland (average of $657). Flying from Colorado to Northern Ireland in June is currently the most expensive (average of $1,189). 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.

What is the cheapest time of day to fly from CO to NIR?

Find hourly flight availability from Colorado to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

When flying from Colorado to Northern Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated March 31, 2025.
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,061 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,713 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Colorado to Northern Ireland one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $410. Delta flights start at $431 while deals on Air France start at $445 one-way.

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Colorado to Northern Ireland (average of $657). Flying from Colorado to Northern Ireland in June is currently the most expensive (average of $1,189). 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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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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Top 2 airlines flying from Colorado to Northern Ireland

Discover the top 2 airlines that operate flights from Colorado to Northern Ireland. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$573Average$680FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$634Average$745FlexibilityNo cancel feeOn-time71%
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