DEN - BHD

$658 Find Cheap Flights from Denver to Belfast

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Belfast departing on 2/18. 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 Belfast City Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Belfast, 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 Belfast, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$658
British Airways
Wed 2/18Fri 2/27
DEN - BHD • 1 stop
Cheapest one-way
Multiple Airlines
Wed 12/10
DEN - BHD • multi-stop
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We hope you love your trip to Belfast!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Belfast (DEN-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Belfast 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 Belfast

Wed, Feb 18 - Fri, Feb 27
British Airways Logo
5:25 pm - 2:15 pm
DEN
-
BHD
13h 50m1 stop
British Airways Logo
6:45 am - 3:30 pm
BHD
-
DEN
15h 45m1 stop
$658British Airways
Thu, Apr 16 - Tue, Apr 21
British Airways Logo
6:40 pm - 3:30 pm
DEN
-
BHD
13h 50m1 stop
British Airways Logo
6:15 pm - 4:30 pm
BHD
-
DEN
29h 15m1 stop
$664British Airways
Wed, Feb 11 - Sun, Feb 15
British Airways Logo
5:25 pm - 4:35 pm
DEN
-
BHD
16h 10m1 stop
British Airways Logo
8:25 pm - 3:30 pm
BHD
-
DEN
26h 05m1 stop
$673British Airways
Wed, Feb 18 - Fri, Feb 27
British Airways Logo
5:25 pm - 2:15 pm
DEN
-
BHD
13h 50m1 stop
British Airways Logo
6:45 am - 5:20 pm
BHD
-
DEN
17h 35m2 stops
$674British Airways
Fri, Feb 6 - Tue, Feb 10
British Airways Logo
5:25 pm - 5:15 pm
DEN
-
BHD
16h 50m1 stop
British Airways Logo
7:25 pm - 3:30 pm
BHD
-
DEN
27h 05m1 stop
$682British Airways
Thu, Apr 16 - Tue, Apr 21
British Airways Logo
2:51 pm - 3:30 pm
DEN
-
BHD
17h 39m2 stops
British Airways Logo
6:15 pm - 4:30 pm
BHD
-
DEN
29h 15m1 stop
$684British Airways
Wed, Feb 18 - Fri, Feb 27
American Airlines Logo
9:17 am - 10:15 am
DEN
-
BHD
17h 58m2 stops
American Airlines Logo
8:45 am - 8:02 pm
BHD
-
DEN
18h 17m2 stops
$686American Airlines
Sat, May 2 - Sat, May 9
British Airways Logo
6:40 pm - 3:05 pm
DEN
-
BHD
13h 25m1 stop
British Airways Logo
7:00 pm - 4:30 pm
BHD
-
DEN
28h 30m1 stop
$687British Airways
Thu, Apr 16 - Tue, Apr 21
British Airways Logo
12:43 pm - 3:30 pm
DEN
-
BHD
19h 47m2 stops
British Airways Logo
9:35 am - 10:19 pm
BHD
-
DEN
19h 44m2 stops
$688British Airways
Sun, May 3 - Sun, May 10
British Airways Logo
6:40 pm - 5:45 pm
DEN
-
BHD
16h 05m1 stop
British Airways Logo
6:50 am - 4:30 pm
BHD
-
DEN
16h 40m1 stop
$689British Airways
Booking Insights

KAYAK's insights & trends for Denver to Belfast flights

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

Which airlines fly non-stop between Denver and Belfast City Airport?

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 Belfast City Airport.

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

Find deals

Good to know

Cheapest flight$658
Flight from Denver to Belfast

When to book flights from Denver to Belfast

Are your dates flexible? Find out the best times to travel from Denver to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Belfast flights

  • What is the cheapest flight from Denver to Belfast City Airport?

    In the last 3 days, the lowest price for a flight from Denver to Belfast City Airport was $658 for a round-trip ticket.

  • Do I need a passport to fly between Denver and Belfast?

    A passport is required to fly from Denver to Belfast.

  • Which airports will I be using when flying from Denver to Belfast?

    Denver and Belfast are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Belfast City.

  • Which aircraft models fly most regularly from Denver to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Belfast?

    oneworld is the only airline alliance operating flights between Denver and Belfast.

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

    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 Belfast.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Denver 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 Belfast?

    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 to Belfast with an airline and back to Denver with another airline. Booking your flights between Denver and BHD can sometimes prove cheaper using this method.

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

    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 to Belfast from Denver 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 Belfast

 
See real verified KAYAK customer reviews for airlines flying from Denver to Belfast. 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 Belfast? 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 7573 reviews
7.6Crew
6.4Food
6.7Comfort
6.4Entertainment
6.9Boarding
Airline reviews

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

8.0 ExcellentAnonymous, Dec 2025
SFO - LHR
Read more British Airways reviews

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.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

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

Everything you need to know for your flight from Denver to Belfast

Information on your arrival and departure airports

Denver (DEN)
Belfast City (BHD)