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Northern Ireland

$265+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
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 30, 2025.

Round-trip from

$654
(Justfly.com)

One-way from

$265
(Trip.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 30, 2025.

This Justfly.com deal was found by Cheapflights users on 6/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3012:29 pmDEN - BHD
2 stops15h 06mBritish Airways
Wed 10/86:50 amBHD - DEN
1 stop16h 35mBritish Airways
Deal found 6/29$654
This Trip.com deal was found by Cheapflights users on 6/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/254:40 pmDEN - BFS
2 stops23h 20mMultiple Airlines
Wed 9/1010:10 amBFS - DEN
2 stops39h 45mMultiple Airlines
Deal found 6/29$654
This American Airlines deal was found by Cheapflights users on 6/29. 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 9/306:35 pmDEN - BHD
1 stop15h 55mAmerican Airlines
Wed 10/86:50 amBHD - DEN
1 stop16h 35mAmerican Airlines
Deal found 6/29$662
This Virgin Atlantic deal was found by Cheapflights users on 6/29. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:00 pmDEN - BHD
2 stops22h 15mVirgin Atlantic
Tue 10/76:30 amBHD - DEN
2 stops19h 40mVirgin Atlantic
Deal found 6/29$754
This KLM deal was found by Cheapflights users on 6/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:25 pmDEN - BHD
2 stops15h 30mKLM
Tue 10/76:30 amBHD - DEN
2 stops20h 30mKLM
Deal found 6/27$804
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Wed 8/69:40 amDEN - BHD
3 stops27h 15mMultiple Airlines
Tue 8/126:50 pmBHD - DEN
3 stops32h 10mMultiple Airlines
Deal found 6/30$836
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/41:52 pmDEN - BHD
2 stops20h 03mDelta
Mon 8/115:25 pmBHD - DEN
2 stops30h 46mDelta
Deal found 6/30$874
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Wed 8/67:55 pmDEN - BHD
2 stops17h 00mAer Lingus
Tue 8/124:55 pmBHD - DEN
3 stops30h 46mAer Lingus
Deal found 6/30$996

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 30, 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

12:29 pm-10:35 am

2 stops15h 06m

Belfast City

Wed 10/8

6:50 am-4:25 pm

1 stop16h 35m

$654

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 8/25

4:40 pm-11:00 pm

2 stops23h 20m

Belfast Intl

Wed 9/10

10:10 am-6:55 pm

2 stops39h 45m

$654

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 9/30

6:35 pm-5:30 pm

1 stop15h 55m

Belfast City

Wed 10/8

6:50 am-4:25 pm

1 stop16h 35m

$662

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 10/3

4:00 pm-9:15 pm

2 stops22h 15m

Belfast City

Tue 10/7

6:30 am-7:10 pm

2 stops19h 40m

$754

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 10/3

6:25 pm-4:55 pm

2 stops15h 30m

Belfast City

Tue 10/7

6:30 am-8:00 pm

2 stops20h 30m

$804

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 8/6

9:40 am-7:55 pm

3 stops27h 15m

Belfast City

Tue 8/12

6:50 pm-8:00 pm

3 stops32h 10m

$836

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 8/4

1:52 pm-4:55 pm

2 stops20h 03m

Belfast City

Mon 8/11

5:25 pm-5:11 pm

2 stops30h 46m

$874

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 8/6

7:55 pm-7:55 pm

2 stops17h 00m

Belfast City

Tue 8/12

4:55 pm-4:41 pm

3 stops30h 46m

$996

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 8/25

4:40 pm-10:40 pm

2 stops23h 00m

$265

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 8/25

4:40 pm-2:30 pm

2 stops38h 50m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 12 results
1
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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 30, 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.

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 30, 2025.
See what other customers who have flown with Delta, KLM, and Virgin Atlantic from Denver to Northern Ireland have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,140 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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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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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$606Average$745FlexibilityNo cancel feeOn-time70%

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