HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Northern Ireland

$412+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Northern Ireland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 17, 2025.

Round-trip from

$693
(American Airlines)

One-way from

$412
(Cheapflightsfares)

Popular in

December

Cheapest in

February
From Denver Intl to Northern Ireland
Search Deals
One-way flight from Denver Intl to Northern Ireland
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($66 potential savings vs. average RT price).
Search Deals

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 April 17, 2025.

This American Airlines deal was found by Cheapflights users on 4/16. 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 10/126:50 amBHD - DEN
1 stop16h 35mAmerican Airlines
Deal found 4/16$693
This oojo deal was found by Cheapflights users on 4/16. 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.
Thu 10/212:20 pmDEN - BHD
2 stops15h 50mBritish Airways
Sun 10/128:05 pmBHD - DEN
2 stops26h 40mBritish Airways
Deal found 4/16$707
This Mytrip deal was found by Cheapflights users on 4/17. 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 6/812:15 pmDEN - BFS
2 stops28h 05mMultiple Airlines
Sat 6/145:45 amBFS - DEN
2 stops36h 42mMultiple Airlines
Deal found 4/17$870
This Mytrip deal was found by Cheapflights users on 4/17. 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 6/812:15 pmDEN - BHD
2 stops22h 25mMultiple Airlines
Sat 6/147:00 amBHD - DEN
3 stops33h 19mMultiple Airlines
Deal found 4/17$876
This Expedia deal was found by Cheapflights users on 4/16. 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.
Sat 7/57:55 pmDEN - BHD
2 stops30h 10mAer Lingus
Sat 7/126:45 pmBHD - DEN
2 stops54h 14mAer Lingus
Deal found 4/16$1,012

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 April 17, 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

Thu 10/2

6:35 pm-1:15 pm

1 stop11h 40m

Belfast City

Sun 10/12

6:50 am-4:25 pm

1 stop16h 35m

$693

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 10/2

12:20 pm-11:10 am

2 stops15h 50m

Belfast City

Sun 10/12

8:05 pm-3:45 pm

2 stops26h 40m

$707

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 6/8

12:15 pm-11:20 pm

2 stops28h 05m

Belfast Intl

Sat 6/14

5:45 am-11:27 am

2 stops36h 42m

$870

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 6/8

12:15 pm-5:40 pm

2 stops22h 25m

Belfast City

Sat 6/14

7:00 am-9:19 am

3 stops33h 19m

$876

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sat 7/5

7:55 pm-9:05 am

2 stops30h 10m

Belfast City

Sat 7/12

6:45 pm-5:59 pm

2 stops54h 14m

$1,012

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 10/2

6:35 pm-1:15 pm

1 stop11h 40m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 April 17, 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 April 17, 2025.
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.
Aer Lingus
7.0
Good
1,063 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.
British Airways
6.6
Okay
6,771 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.

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

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 Denver to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Heathrow flights
Denver to Gatwick flights
Denver to London City flights
Denver to Edinburgh flights
Denver to Stansted flights
Denver to Glasgow Intl flights
Denver to Luton flights
Denver to Manchester flights
Colorado Springs to Heathrow flights
Colorado Springs to London City flights
Denver to Inverness flights
Denver to Birmingham flights
Grand Junction to Heathrow flights
Durango to Heathrow flights
Denver to Southampton flights
Colorado Springs to Gatwick flights
Colorado Springs to Edinburgh flights
Grand Junction to Edinburgh flights
Denver to Belfast Intl flights
Denver to Belfast City flights
Montrose to Heathrow flights
Denver to Bristol flights
Denver to Cardiff flights
Aspen to Edinburgh flights
Denver to Newcastle upon Tyne flights
Denver to Aberdeen flights
Denver to Southend flights
Denver to Norwich flights
Colorado Springs to Manchester flights
Aspen to Heathrow flights
Denver to Darlington flights
Colorado Springs to Leeds flights
Durango to Edinburgh flights
Durango to Glasgow Intl flights
Denver to Liverpool flights
Colorado Springs to Birmingham flights
Hayden to Manchester flights
Denver to Leeds flights

Top 2 airlines flying from Denver to Northern Ireland

Discover the top 2 airlines 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$573Average$705FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$634Average$745FlexibilityNo cancel feeOn-time71%

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.