$317 Find Cheap Flights from Denver to Northern Ireland - Compare and Save

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 8/26. 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

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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

Mon, Aug 24 - Tue, Sep 1
Multiple Airlines Logo
4:40 pm - 8:50 pm
DEN
-
BFS
21h 10m
2 stops
Multiple Airlines Logo
10:30 pm - 7:00 pm
BFS
-
DEN
27h 30m
2 stops
$938Multiple Airlines
Sun, Sep 6 - Tue, Sep 15
Multiple Airlines Logo
4:40 pm - 9:50 pm
DEN
-
BFS
22h 10m
2 stops
Multiple Airlines Logo
5:55 am - 7:00 pm
BFS
-
DEN
44h 05m
3 stops
$939Multiple Airlines
Sun, Nov 29 - Thu, Dec 3
British Airways Logo
5:01 pm - 1:55 pm
DEN
-
BHD
13h 54m
1 stop
British Airways Logo
5:45 pm - 3:10 pm
BHD
-
DEN
28h 25m
1 stop
$948British Airways
Sun, Nov 29 - Thu, Dec 3
British Airways Logo
5:01 pm - 1:55 pm
DEN
-
BHD
13h 54m
1 stop
British Airways Logo
5:45 pm - 3:10 pm
BHD
-
DEN
28h 25m
1 stop
$949British Airways
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
4:40 pm - 9:45 pm
DEN
-
BFS
22h 05m
2 stops
Multiple Airlines Logo
9:05 pm - 8:17 pm
BFS
-
DEN
30h 12m
3 stops
$957Multiple Airlines
Mon, Aug 24 - Tue, Sep 1
Multiple Airlines Logo
5:40 pm - 10:40 am
DEN
-
BFS
34h 00m
1 stop
Multiple Airlines Logo
10:30 pm - 11:00 pm
BFS
-
DEN
31h 30m
2 stops
$964Multiple Airlines
Sun, Sep 6 - Tue, Sep 15
British Airways Logo
6:40 pm - 2:35 pm
DEN
-
BHD
12h 55m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$976British Airways
Tue, Sep 1 - Fri, Sep 11
British Airways Logo
6:40 pm - 5:35 pm
DEN
-
BHD
15h 55m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$984British Airways
Tue, Sep 1 - Fri, Sep 11
British Airways Logo
6:40 pm - 5:35 pm
DEN
-
BHD
15h 55m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$985British Airways
Mon, Aug 31 - Fri, Sep 11
British Airways Logo
6:40 pm - 3:30 pm
DEN
-
BHD
13h 50m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$989British Airways
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 13h 30m.

Find deals

Good to know

Cheapest flight

$317
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 8129 reviews
6.5Entertainment
7.0Boarding
6.4Food
6.8Comfort
7.7Crew
Airline reviews

Work being done at DIA made it difficult to find BA desk.

8.0 ExcellentAnonymous, Jul 2026
DEN - LHR
Read more British Airways reviews

Work being done at DIA made it difficult to find BA desk.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

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

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

Late in leaving the US. Late in arriving in UK. 2 plua hous on ground in UK before leaving. Late in arriving in Spain. Didn't get our bags until the next night.

Comfortable, pleasant staff, quiet, good entertainment, food, drinks. Better than American (flight back) when we were crammed in and staff sometimes indifferent.

The perfect jet stream back saved over 1 hour in the air.

I was told and paid extra payment to have extra leg space seat but we got surprices only. Such a long hour flights seat leg space to be improved

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

Information on your arrival and departure airports

Denver (DEN)