$345 Find Cheap Flights from Denver to Northern Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Northern Ireland departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Northern Ireland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Northern Ireland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Northern Ireland, as well as popular online travel agencies
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Flight Deals

Book Cheap Denver to Northern Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Northern Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Northern Ireland

Thu, Jan 15 - Tue, Jan 20
British Airways Logo
5:25 pm - 4:40 pmDEN-BHD
16h 15m1 stop
British Airways Logo
6:35 am - 3:30 pmBHD-DEN
15h 55m1 stop
$666British Airways
Find Deal
Mon, Jan 12 - Thu, Jan 22
British Airways Logo
5:25 pm - 4:05 pmDEN-BHD
15h 40m1 stop
British Airways Logo
6:35 am - 3:30 pmBHD-DEN
15h 55m1 stop
$674British Airways
Find Deal
Thu, Jan 15 - Tue, Jan 20
British Airways Logo
5:25 pm - 4:40 pmDEN-BHD
16h 15m1 stop
British Airways Logo
11:25 am - 10:34 pmBHD-DEN
18h 09m2 stops
$684British Airways
Find Deal
Thu, Jan 15 - Tue, Jan 20
American Airlines Logo
3:17 pm - 4:40 pmDEN-BHD
18h 23m2 stops
American Airlines Logo
10:00 am - 11:16 pmBHD-DEN
20h 16m2 stops
$686American Airlines
Find Deal
Fri, Apr 3 - Tue, Apr 7
British Airways Logo
6:40 pm - 3:30 pmDEN-BHD
13h 50m1 stop
British Airways Logo
6:35 am - 4:35 pmBHD-DEN
17h 00m1 stop
$689British Airways
Find Deal
Mon, Jan 12 - Fri, Jan 23
Delta Logo
11:38 am - 4:50 pmDEN-BHD
22h 12m2 stops
Delta Logo
5:20 pm - 5:28 pmBHD-DEN
31h 08m2 stops
$708Delta
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Fri, Apr 3 - Tue, Apr 7
Delta Logo
12:20 pm - 4:55 pmDEN-BHD
21h 35m2 stops
Delta Logo
6:30 am - 5:37 pmBHD-DEN
18h 07m2 stops
$724Delta
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Fri, Apr 3 - Tue, Apr 7
KLM Logo
6:30 am - 4:55 pmDEN-BHD
27h 25m2 stops
KLM Logo
6:30 am - 5:37 pmBHD-DEN
18h 07m2 stops
$776KLM
Find Deal
Fri, Apr 3 - Tue, Apr 7
KLM Logo
6:30 am - 4:55 pmDEN-BHD
27h 25m2 stops
KLM Logo
6:30 am - 5:37 pmBHD-DEN
18h 07m2 stops
$782KLM
Find Deal
Fri, Apr 3 - Tue, Apr 7
Virgin Atlantic Logo
4:00 pm - 9:20 pmDEN-BHD
22h 20m2 stops
Virgin Atlantic Logo
6:30 am - 6:31 pmBHD-DEN
19h 01m2 stops
$870Virgin Atlantic
Find Deal
Booking Insights

KAYAK's insights & trends for Denver to Northern Ireland flights

Get data-powered insights and trends into flights from Denver to Northern Ireland to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Denver and Northern Ireland?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Denver to Northern Ireland.

There is just one airline that flies from Denver to Northern Ireland direct and that is British Airways. The best round-trip deal found from British Airways for the route is to Belfast City Airport (BHD) and costs $608.

Which airlines provide the cheapest flights from Denver to Northern Ireland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Denver to Northern Ireland were found on British Airways ($666) and American Airlines ($686).

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Good to know

Low seasonNovember
Cheapest flight$345
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Denver to Belfast

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from Denver to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Denver to Northern Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Denver to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Denver to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Northern Ireland?

    The cheapest time of day to fly to Northern Ireland is generally in the morning, when round-trip flights cost $675 on average. Morning departures are around 9% cheaper than evening flights, on average. The most expensive time of day to fly to Northern Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is $745.

Reviews of the top airline flying from Denver to Northern Ireland

 
See real verified KAYAK customer reviews for airlines flying from Denver to Northern Ireland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 7485 reviews
6.7Comfort
6.4Entertainment
7.6Crew
6.9Boarding
6.3Food
Airline reviews

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

10.0 Excellentshamarcus, Oct 2025SEA - LHR
Read more British Airways reviews

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Everything you need to know for your flight from Denver to Northern Ireland

Information on your arrival and departure airports

Denver (DEN)

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