HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Northern Ireland

$592+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
Jan 31 — Feb 71
Sat 1/31
Sat 2/7
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

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 January 1, 2026.

This Mytrip deal was found by Cheapflights users on 12/31. 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 2/153:40 pmDEN - BFS
2 stops20h 15mMultiple Airlines
Sun 2/227:10 amBFS - DEN
2 stops17h 55mMultiple Airlines
Deal found 12/31$592
This Cheapflightsfares deal was found by Cheapflights users on 12/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/185:25 pmDEN - BHD
1 stop16h 10mBritish Airways
Fri 2/278:45 amBHD - DEN
1 stop13h 45mBritish Airways
Deal found 12/30$651
This British Airways deal was found by Cheapflights users on 12/31. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:25 pmDEN - BHD
1 stop13h 50mBritish Airways
Tue 2/2411:25 amBHD - DEN
1 stop35h 05mBritish Airways
Deal found 12/31$675
This British Airways deal was found by Cheapflights users on 12/31. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:25 pmDEN - BHD
1 stop16h 10mBritish Airways
Sun 3/18:25 pmBHD - DEN
1 stop26h 05mBritish Airways
Deal found 12/31$675

Find 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 January 1, 2026.

Round-trip from

$592
(Mytrip)

Popular in

March

Cheapest in

February
From Denver Intl to Northern Ireland
Search Deals
High demand for flights, 6% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals

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 January 1, 2026.
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 - BFS

DENBFS

Denver Intl

Sun 2/15

3:40 pm-6:55 pm

2 stops20h 15m

Belfast Intl

Sun 2/22

7:10 am-6:05 pm

2 stops17h 55m

$592

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 2/18

5:25 pm-4:35 pm

1 stop16h 10m

Belfast City

Fri 2/27

8:45 am-3:30 pm

1 stop13h 45m

$651

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 2/20

5:25 pm-2:15 pm

1 stop13h 50m

Belfast City

Tue 2/24

11:25 am-3:30 pm

1 stop35h 05m

$675

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 2/25

5:25 pm-4:35 pm

1 stop16h 10m

Belfast City

Sun 3/1

8:25 pm-3:30 pm

1 stop26h 05m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

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
No data available for this route at this time. Please check back soon.

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 January 1, 2026.
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
7,631 reviews

Entertainment

6.4

Food

6.4

Crew

7.6

Boarding

6.9

Overall

6.7

Comfort

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,631 reviews
British Airways
6.7
Okay
7,631 reviews

Entertainment

6.4

Food

6.4

Crew

7.6

Boarding

6.9

Overall

6.7

Comfort

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely 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.

  • How long is the flight from Denver to Northern Ireland?

    Airlines like British Airways fly from Denver to Northern Ireland in about 16h 10m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4347 mi.

  • 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

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 Stansted flights
Denver to Edinburgh flights
Denver to Glasgow Intl flights
Denver to Luton flights
Denver to Manchester flights
Colorado Springs to Heathrow flights
Montrose to Heathrow flights
Denver to Inverness flights
Aspen to Heathrow flights
Colorado Springs to London City flights
Denver to Belfast Intl flights
Denver to Belfast City flights
Grand Junction to Heathrow flights
Denver to Liverpool flights
Colorado Springs to Gatwick flights
Denver to Birmingham flights
Denver to Newcastle upon Tyne flights
Aspen to Edinburgh flights
Colorado Springs to Edinburgh flights
Grand Junction to Edinburgh flights
Denver to Aberdeen flights
Colorado Springs to Birmingham flights
Durango to Edinburgh flights
Denver to Southampton flights
Denver to Leeds flights
Colorado Springs to Manchester flights
Durango to Heathrow flights
Denver to Bristol flights
Denver to Cardiff flights
Denver to Southend flights
Denver to Norwich flights
Denver to Darlington flights
Hayden to Manchester flights
Durango to Glasgow Intl flights
Colorado Springs to Leeds 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 January 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$654Average$995FlexibilityNo cancel feeOn-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.