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$481+ Cheap flights from Northern Ireland to Colorado

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DEN
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Northern Ireland to Colorado

Keep the following information in mind while searching for Northern Ireland to Colorado flight deals. Data was last updated June 16, 2025.

Round-trip from

$926

One-way from

$481
(Kiwi.com)
From Northern Ireland to Colorado
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One-way flight from Northern Ireland to Colorado
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Find flight deals from Northern Ireland to Colorado

Cheapest flights from Northern Ireland to Colorado
Explore the most affordable flight options available from Northern Ireland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This deal was found by Cheapflights users on 6/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:50 amBHD - DEN
1 stop16h 35mBritish Airways
Mon 8/116:35 pmDEN - BHD
1 stop14h 05mBritish Airways
Deal found 6/14$926
This Mytrip deal was found by Cheapflights users on 6/15. 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.
Wed 7/303:25 pmBFS - DEN
2 stops34h 30mMultiple Airlines
Wed 8/64:40 pmDEN - BFS
2 stops20h 55mMultiple Airlines
Deal found 6/15$1,198

Cheapflights Fare Finder

Customize your flight search to find flights from Northern Ireland to Colorado 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 June 16, 2025.
Use the filters below to find and compare flights from Northern Ireland to Colorado that are best for you.

Fly from

Northern Ireland

Fly to

Colorado

Route

Depart

Return

Price

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Wed 8/6

6:50 am-4:25 pm

1 stop16h 35m

Denver Intl

Mon 8/11

6:35 pm-3:40 pm

1 stop14h 05m

$926

BelfastDenver

BFS - DEN

BFSDEN

Belfast Intl

Wed 7/30

3:25 pm-6:55 pm

2 stops34h 30m

Denver Intl

Wed 8/6

4:40 pm-8:35 pm

2 stops20h 55m

$1,198

BelfastDenver

BFS - DEN

BFSDEN

Belfast Intl

Mon 9/8

6:10 am-9:49 am

2 stops34h 39m

$481

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Mon 9/8

7:05 am-9:00 am

2 stops32h 55m

$566

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Mon 9/8

6:40 am-4:25 pm

1 stop16h 45m

$767

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Sun 7/13

7:00 am-5:59 pm

2 stops17h 59m

$3,517

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Best time to book a flight from Northern Ireland to Colorado

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

Rainfall in Colorado by month

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

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

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

If weather is an important factor for your trip to Colorado, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated June 16, 2025.
Aer Lingus
7.1
Good
1,118 reviews

Crew

7.9

Entertainment

6.8

Overall

7.1

Boarding

7.2

Food

6.4

Comfort

7.0

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
Aer Lingus
7.1
Good
1,118 reviews
Aer Lingus
7.1
Good
1,118 reviews

Crew

7.9

Entertainment

6.8

Overall

7.1

Boarding

7.2

Food

6.4

Comfort

7.0

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
British Airways
6.6
Okay
7,019 reviews
Aer Lingus
7.1
Good
1,118 reviews

Crew

7.9

Entertainment

6.8

Overall

7.1

Boarding

7.2

Food

6.4

Comfort

7.0

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.

Related info for your journey

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

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Northern Ireland to Colorado (average of $197). Flying from Northern Ireland to Colorado in March is currently the most expensive (average of $278). 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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