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$334+ Cheap flights from Denver (DEN) 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Denver to Northern Ireland

Keep the following information in mind while searching for Denver to Northern Ireland flight deals. Data was last updated June 12, 2025.

Round-trip from

$661
(Expedia)

One-way from

$334
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$995
From Denver Intl to Northern Ireland
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One-way flight from Denver Intl to Northern Ireland
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Highest demand for flights based on searches. 10% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($68 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Denver to Northern Ireland

Cheapest flights from Denver to Northern Ireland
Explore the most affordable flight options available from Denver to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:35 pmDEN - BHD
1 stop13h 45mBritish Airways
Tue 10/285:10 pmBHD - DEN
1 stop29h 15mBritish Airways
Deal found 6/10$661
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 10/26:35 pmDEN - BHD
1 stop11h 40mAmerican Airlines
Sun 10/1211:00 amBHD - DEN
2 stops19h 38mAmerican Airlines
Deal found 6/11$669
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:15 amDEN - BHD
2 stops20h 00mMultiple Airlines
Thu 11/276:35 amBHD - DEN
2 stops20h 30mMultiple Airlines
Deal found 6/11$811
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Tue 7/17:45 amDEN - BFS
2 stops25h 55mMultiple Airlines
Thu 7/106:00 amBFS - DEN
2 stops36h 27mMultiple Airlines
Deal found 6/10$1,124
This oojo deal was found by Cheapflights users on 6/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/147:55 pmDEN - BHD
2 stops18h 00mAer Lingus
Fri 7/184:55 pmBHD - DEN
2 stops32h 04mAer Lingus
Deal found 6/9$1,422

Cheapflights Fare Finder

Customize your flight search to find flights from Denver 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 June 12, 2025.
Use the filters below to find and compare flights from Denver to Northern Ireland that are best for you.

Fly from

Denver

Fly to

Northern Ireland

Route

Depart

Return

Price

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 9/30

6:35 pm-3:20 pm

1 stop13h 45m

Belfast City

Tue 10/28

5:10 pm-4:25 pm

1 stop29h 15m

$661

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 10/2

6:35 pm-1:15 pm

1 stop11h 40m

Belfast City

Sun 10/12

11:00 am-11:38 pm

2 stops19h 38m

$669

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 11/21

11:15 am-2:15 pm

2 stops20h 00m

Belfast City

Thu 11/27

6:35 am-8:05 pm

2 stops20h 30m

$811

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 7/1

7:45 am-4:40 pm

2 stops25h 55m

Belfast Intl

Thu 7/10

6:00 am-11:27 am

2 stops36h 27m

$1,124

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 7/14

7:55 pm-8:55 pm

2 stops18h 00m

Belfast City

Fri 7/18

4:55 pm-5:59 pm

2 stops32h 04m

$1,422

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 8/27

4:40 pm-6:15 pm

2 stops42h 35m

$334

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 8/27

4:40 pm-9:20 am

2 stops33h 40m

$345

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 8/19

6:35 pm-5:30 pm

1 stop15h 55m

$379

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 8/19

5:32 pm-3:20 pm

2 stops14h 48m

$385

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 8/19

7:22 am-12:50 pm

3 stops22h 28m

$716

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Denver to Northern Ireland

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

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

Find hourly flight availability from Denver 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 June 12, 2025.

When flying from Denver 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 June 12, 2025.
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Boarding

7.5

Crew

8.0

Entertainment

6.9

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Boarding

7.5

Crew

8.0

Entertainment

6.9

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
Aer Lingus
7.1
Good
1,117 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Boarding

7.5

Crew

8.0

Entertainment

6.9

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
British Airways
6.6
Okay
7,008 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Boarding

7.5

Crew

8.0

Entertainment

6.9

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Related info for your journey

Find useful and relevant information for your journey from Denver 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 airport do you fly from for flights from Denver to Northern Ireland?

    For a flight from Denver to Northern Ireland, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city.

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

    $379 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on American Airlines and Aer Lingus, with prices starting from $385 and $716, respectively.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Denver to Northern Ireland (average of $657). Flying from Denver 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 Denver to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Denver to Norwich flights
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Hayden to Manchester flights
Denver to Darlington flights
Colorado Springs to Birmingham flights
Denver to Bristol flights

Top airline flying from Denver to Northern Ireland

Discover the top airline that operate flights from Denver 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$606Average$720FlexibilityNo cancel feeOn-time70%

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