How long is the flight from Denver to Northern Ireland?

Airlines like American Airlines and British Airways fly from Denver to Northern Ireland in about 13h 50m. The time it takes to get you to your destination can typically vary by up to 4h 19m. Airlines will cover a distance of 4347 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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.

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).

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.

$678+ Cheap Flights from Denver to Northern Ireland

Q: How much does it cost to fly round-trip from Denver to Northern Ireland?

Airfare is above average for this route at the moment. Denver to Northern Ireland flights typically cost between $648 and $654 in January. The cheapest round-trip price found within the last 3 days was $1,083 on Multiple Airlines (Jan 6-Jan 13).

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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.

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 October 23, 2025.

Sun 11/169:11 amDEN - BHD

2 stops18h 09mAmerican Airlines

Sun 11/236:30 amBHD - DEN

2 stops19h 36mAmerican Airlines

Deal found 10/21

$678

Wed 10/292:57 pmDEN - BHD

2 stops19h 53mKLM

Tue 11/46:30 amBHD - DEN

2 stops19h 26mKLM

Deal found 10/20

$700

Sun 11/165:25 pmDEN - BHD

1 stop31h 15mBritish Airways

Sun 11/239:10 amBHD - DEN

1 stop13h 20mBritish Airways

Deal found 10/21

$850

Wed 10/296:25 pmDEN - BHD

1 stop31h 05mBritish Airways

Tue 11/43:05 pmBHD - DEN

1 stop31h 25mBritish Airways

Deal found 10/20

$900

Fri 12/511:15 amDEN - BFS

3 stops27h 45mMultiple Airlines

Fri 12/126:30 amBFS - DEN

2 stops18h 35mMultiple Airlines

Deal found 10/23

$1,193

Best flights from Denver to Northern Ireland
Discover carefully curated flight deals from Denver to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2025.

Sun 11/169:11 amDEN - BHD

2 stops18h 09mAmerican Airlines

Sun 11/236:30 amBHD - DEN

2 stops19h 36mAmerican Airlines

Deal found 10/21

$678

Fri 4/36:40 pmDEN - BHD

1 stop13h 50mBritish Airways

Tue 4/76:15 pmBHD - DEN

1 stop29h 20mBritish Airways

Deal found 10/20

$691

Fri 4/34:00 pmDEN - BHD

2 stops22h 20mVirgin Atlantic

Tue 4/75:25 pmBHD - DEN

2 stops33h 38mVirgin Atlantic

Deal found 10/22

$726

Tue 1/63:40 pmDEN - BHD

2 stops16h 10mMultiple Airlines

Tue 1/136:35 amBHD - DEN

2 stops18h 30mMultiple Airlines

Deal found 10/23

$743

Tue 1/65:25 pmDEN - BHD

1 stop16h 20mBritish Airways

Tue 1/133:05 pmBHD - DEN

1 stop31h 25mBritish Airways

Deal found 10/23

$692

Tue 1/63:40 pmDEN - BFS

2 stops20h 10mMultiple Airlines

Tue 1/136:30 amBFS - DEN

2 stops20h 25mMultiple Airlines

Deal found 10/23

$1,083

Fri 12/511:15 amDEN - BFS

3 stops27h 45mMultiple Airlines

Fri 12/126:30 amBFS - DEN

2 stops18h 35mMultiple Airlines

Deal found 10/23

$1,193

Last-minute flights from Denver to Northern Ireland
Discover last-minute flight deals from Denver to Northern Ireland. Data last updated October 23, 2025 and is based on user searches.

Wed 10/292:57 pmDEN - BHD

2 stops19h 53mKLM

Tue 11/46:30 amBHD - DEN

2 stops19h 26mKLM

Deal found 10/20

$700

Wed 10/296:25 pmDEN - BHD

1 stop31h 05mBritish Airways

Tue 11/43:05 pmBHD - DEN

1 stop31h 25mBritish Airways

Deal found 10/20

$900

Sun 11/169:11 amDEN - BHD

2 stops18h 09mAmerican Airlines

Sun 11/236:30 amBHD - DEN

2 stops19h 36mAmerican Airlines

Deal found 10/21

$678

Sun 11/165:25 pmDEN - BHD

1 stop31h 15mBritish Airways

Sun 11/239:10 amBHD - DEN

1 stop13h 20mBritish Airways

Deal found 10/21

$850

One-way flights from Denver to Northern Ireland
Search for one-way flight options from Denver to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated October 23, 2025.

Fri 12/54:20 pmDEN - BFS

2 stops21h 10mMultiple Airlines

Deal found 10/21

$1,480

Cheap flight deals from Denver to Northern Ireland

Round-trip from	$678 (American Airlines)
Popular in	December
Cheapest in	November
Average price	$667

From Denver Intl to Northern Ireland

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($76 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease ($68 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 11/16

9:11 am-10:20 am

2 stops18h 09m

Belfast City

Sun 11/23

6:30 am-7:06 pm

2 stops19h 36m

$678

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 4/3

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Tue 4/7

6:15 pm-4:35 pm

1 stop29h 20m

$691

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 1/6

5:25 pm-4:45 pm

1 stop16h 20m

Belfast City

Tue 1/13

3:05 pm-3:30 pm

1 stop31h 25m

$692

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 4/3

4:00 pm-9:20 pm

2 stops22h 20m

Belfast City

Tue 4/7

5:25 pm-8:03 pm

2 stops33h 38m

$726

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 1/6

3:40 pm-2:50 pm

2 stops16h 10m

Belfast City

Tue 1/13

6:35 am-6:05 pm

2 stops18h 30m

$743

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 1/6

3:40 pm-6:50 pm

2 stops20h 10m

Belfast Intl

Tue 1/13

6:30 am-7:55 pm

2 stops20h 25m

$1,083

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 12/5

11:15 am-10:00 pm

3 stops27h 45m

Belfast Intl

Fri 12/12

6:30 am-6:05 pm

2 stops18h 35m

$1,193

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 12/5

4:20 pm-8:30 pm

2 stops21h 10m

$1,480

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

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?

It’s optimal to fly from Denver to Northern Ireland in the morning. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from Denver to Northern Ireland?

Reviews of airlines servicing Northern Ireland

See what other customers who have flown with British Airways 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.

British Airways

6.7

Okay

7,468 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

British Airways

6.7

Okay

7,468 reviews

British Airways

6.7

Okay

7,468 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

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.
How long is the flight from Denver to Northern Ireland?
Airlines like American Airlines and British Airways fly from Denver to Northern Ireland in about 13h 50m. The time it takes to get you to your destination can typically vary by up to 4h 19m. Airlines will cover a distance of 4347 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Denver to Northern Ireland

Denver to Heathrow flights

Denver to Gatwick flights

Denver to London City flights

Denver to Luton flights

Denver to Stansted flights

Denver to Edinburgh flights

Denver to Glasgow Intl flights

Denver to Manchester flights

Montrose to Heathrow flights

Colorado Springs to Heathrow flights

Durango to Heathrow flights

Grand Junction to Heathrow flights

Aspen to Heathrow flights

Colorado Springs to London City flights

Denver to Inverness flights

Grand Junction to Edinburgh flights

Denver to Southend flights

Denver to Leeds flights

Denver to Belfast Intl flights

Denver to Newcastle upon Tyne flights

Denver to Aberdeen flights

Denver to Belfast City flights

Colorado Springs to Edinburgh flights

Denver to Southampton flights

Denver to Birmingham flights

Durango to Edinburgh flights

Denver to Bristol flights

Colorado Springs to Manchester flights

Denver to Liverpool flights

Hayden to Manchester flights

Denver to Cardiff flights

Aspen to Edinburgh flights

Durango to Glasgow Intl flights

Denver to Norwich flights

Denver to Darlington flights

Colorado Springs to Birmingham flights

Colorado Springs to Leeds flights

Colorado Springs to Gatwick flights

Top airline flying from Denver to Northern Ireland

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$608	Average$771	FlexibilityNo cancel fee	On-time70%

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.

$678+ Cheap flights from Denver (DEN) to Northern Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to Northern Ireland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Denver to Northern Ireland

Cheapest flights from Denver to Northern IrelandExplore 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 October 23, 2025.

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 October 23, 2025.

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 October 23, 2025.

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to Northern Ireland that are best for you.

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.

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 October 23, 2025.

How much does it cost to fly round-trip from Denver to Northern Ireland?

Reviews of airlines servicing Northern Ireland

See what other customers who have flown with British Airways 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.

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?

How long is the flight from Denver to Northern Ireland?

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

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

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

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.

Top airline flying from Denver to Northern Ireland

100% Free

Book with Flexibility

Travel Smart

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 October 23, 2025.