$296 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 5/1. 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

Wed, Feb 18 - Fri, Feb 27
British Airways Logo
9:22 am - 10:15 am
DEN
-
BHD
17h 53m
2 stops
British Airways Logo
6:45 am - 3:30 pm
BHD
-
DEN
15h 45m
1 stop
$673British Airways
Wed, Feb 18 - Fri, Feb 27
British Airways Logo
2:28 pm - 4:35 pm
DEN
-
BHD
19h 07m
2 stops
British Airways Logo
6:45 am - 3:30 pm
BHD
-
DEN
15h 45m
1 stop
$674British Airways
Wed, Feb 18 - Fri, Feb 27
British Airways Logo
9:22 am - 10:15 am
DEN
-
BHD
17h 53m
2 stops
British Airways Logo
6:45 am - 10:37 pm
BHD
-
DEN
22h 52m
2 stops
$676British Airways
Wed, Feb 18 - Fri, Feb 27
British Airways Logo
9:22 am - 10:15 am
DEN
-
BHD
17h 53m
2 stops
British Airways Logo
8:45 am - 10:37 pm
BHD
-
DEN
20h 52m
2 stops
$677British Airways
Wed, Feb 25 - Sun, Mar 1
British Airways Logo
5:25 pm - 7:30 am
DEN
-
BHD
31h 05m
1 stop
British Airways Logo
9:10 am - 3:30 pm
BHD
-
DEN
13h 20m
1 stop
$685British Airways
Wed, Feb 25 - Sun, Mar 1
British Airways Logo
5:25 pm - 7:30 am
DEN
-
BHD
31h 05m
1 stop
British Airways Logo
6:30 am - 3:30 pm
BHD
-
DEN
16h 00m
1 stop
$688British Airways
Sun, May 10 - Sun, May 17
British Airways Logo
8:40 am - 10:30 am
DEN
-
BHD
18h 50m
2 stops
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$690British Airways
Sun, May 10 - Sun, May 17
British Airways Logo
6:40 pm - 5:40 pm
DEN
-
BHD
16h 00m
1 stop
British Airways Logo
3:50 pm - 4:30 pm
BHD
-
DEN
31h 40m
1 stop
$692British Airways
Sat, May 23 - Sun, May 31
Multiple Airlines Logo
8:10 pm - 8:50 pm
DEN
-
BFS
17h 40m
2 stops
Multiple Airlines Logo
8:35 am - 12:25 pm
BFS
-
DEN
34h 50m
2 stops
$1,011Multiple Airlines
Sat, May 23 - Sun, May 31
Multiple Airlines Logo
8:10 pm - 8:50 pm
DEN
-
BFS
17h 40m
2 stops
Multiple Airlines Logo
10:00 pm - 7:00 pm
BFS
-
DEN
28h 00m
3 stops
$1,235Multiple Airlines
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.

How long does a flight from Denver to Northern Ireland take?

The duration of a flight to Northern Ireland depends on your arrival airport. The shortest route to Northern Ireland from Denver is to Belfast, which takes 12h 55m.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$296
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Denver to Belfast City Airport

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.

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 7704 reviews
6.8Comfort
7.6Crew
6.4Food
6.9Boarding
6.4Entertainment
Airline reviews

The issue was not with BA it was with the link yoiu sent fopr booking the flight

2.0 MediocreAnonymous, Jan 2026
LAX - LHR
Read more British Airways reviews

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

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

Information on your arrival and departure airports

Denver (DEN)