Skyscanner

Cheap flight tickets from Denver to Belfast

Compare Denver to Belfast flight deals

Find the cheapest month or even day of the year to fly to Belfast

Book the best Belfast fare with no extra fees

Flight deals from Denver to Belfast

Looking for a cheap last-minute deal or the best return flight from Denver to Belfast? Find the lowest prices on one-way and return tickets right here.
Belfast.RM2,764 per passenger.Departing Sat, 15 Nov, returning Sat, 6 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Denver International on Sat, 15 Nov, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Sat, 6 Dec, arriving in Denver International.Price includes taxes and charges.From RM2,764, select.
Belfast.RM2,843 per passenger.Departing Tue, 18 Nov, returning Thu, 20 Nov.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Denver International on Tue, 18 Nov, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Thu, 20 Nov, arriving in Denver International.Price includes taxes and charges.From RM2,843, select.
Belfast.RM2,915 per passenger.Departing Sun, 10 May, returning Fri, 15 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Denver International on Sun, 10 May, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Fri, 15 May, arriving in Denver International.Price includes taxes and charges.From RM2,915, select.
Belfast.RM2,950 per passenger.Departing Wed, 15 Oct, returning Mon, 20 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Wed, 15 Oct, arriving in Belfast City.Inbound indirect flight with Delta, departs from Belfast City on Mon, 20 Oct, arriving in Denver International.Price includes taxes and charges.From RM2,950, select.
Belfast.RM3,091 per passenger.Departing Mon, 8 Dec, returning Wed, 17 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Denver International on Mon, 8 Dec, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Wed, 17 Dec, arriving in Denver International.Price includes taxes and charges.From RM3,091, select.
Belfast.RM4,764 per passenger.Departing Tue, 2 Jun, returning Sun, 14 Jun.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Denver International on Tue, 2 Jun, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Sun, 14 Jun, arriving in Denver International.Price includes taxes and charges.From RM4,764, select.

Find the cheapest month to fly from Denver to Belfast

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to Belfast flights are currently cheapest in November.
Sep
Find prices
Oct
from RM2,950
Nov
from RM2,843
Dec
from RM3,091
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
from RM2,915
Jun
from RM4,764
Jul
Find prices
Aug
Find prices

Alternative Denver to Belfast routes

Looking for the cheapest, fastest or easiest route from Denver to Belfast? You could fly into the following airports instead.

Denver to Belfast: Flight information

The things to know before you go.
Cheapest flight foundRM2,764
Cheapest month to flyNovember

Finding cheap flights from Denver to Belfast: Frequently asked questions

There are 2 airports in Belfast: Belfast City and Belfast International.
The best price we found for a return flight from Denver to Belfast is RM2,764. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Denver to Belfast. But we found flights with one or more stops from RM2,764.
As of September 2025, there are no flights flying from Denver to Belfast.
The cheapest month to fly from Denver to Belfast is usually November.
If you're flying from Denver, the cheapest airport near Belfast is Belfast City – which is 3.7 km away from the centre of Belfast. We've found flights into this airport from RM2,764.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Belfast on Saturday, 15 November 2025.
No airlines currently offer direct flights between Denver and Belfast. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Belfast but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Belfast is around 40 days in advance, so don’t leave your flight to the last minute.
In September, the average temperature is usually around 13°C. August is typically the warmest month in Belfast, when it usually averages around 17°C. You can expect the least rain in May. The coldest month is January, with temperatures averaging 4°C. The rainiest month is October.
The cheapest airline that flies to Belfast is British Airways .

Travelling from Denver to Belfast: what you need to know

  • Denver International Airport (DEN) is Denver's main airport. Explore your options for reserving a flight from Denver to Belfast departing from here.

  • Step off your plane in Belfast at Belfast International Airport (BFS) or George Best Belfast City Airport (BHD).

  • Belfast is six hours ahead of Denver and is in the UTC+0 timezone.

  • Leave plenty of time to catch your Denver to Belfast flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak month like July? School holidays and other popular seasons can lead to longer lines at check-in and security. Play it safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

How to find the cheapest flights from Denver to Belfast

  • To find cheap Denver to Belfast flights, book in advance. Airlines tend to offer the most competitive fares when tickets first go on sale.

  • Finding cheap plane tickets from Denver to Belfast is easier if you can be flexible with your trip dates. Use the 'Whole month' search tool to see the lowest prices across each month and land a fantastic deal.

  • You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll tell you when there's a better deal on cheap flights from Denver to Belfast.

  • Select your preferred departure and arrival times, airlines and number of stops by using the filters. Alternatively, sort your Denver to Belfast flight results by 'Cheapest,' 'Fastest' or 'Best.'

Flying from Denver

Denver International Airport (DEN)

  • We make it a breeze to find a Denver to Belfast flight with a stopover. To see all the options departing from Denver International Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to see the sights of your chosen city. Top stopovers include:

    • London Heathrow Airport (LHR)

    • Frankfurt Airport (FRA)

    • Charles de Gaulle Airport (CDG)

  • Located around 31 kilometres from the centre of Denver, DEN can be reached in about 35 minutes by car, depending on traffic. The journey on public transport will take roughly 1 hour 30 minutes.

  • In search of a hotel to stay at before your flight from Denver to Belfast? Check out Baymont by Wyndham Denver International Airport. Get a good night's sleep here before heading to Denver International Airport.

  • Denver International Airport scores high marks for on-time performance. 80.23% of flights that depart DEN arrive at their destination as scheduled.

  • DEN is located at 8500 Pena Boulevard.

Arriving in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) is approximately 19 kilometres from the centre of Belfast. If you're catching a cab or a ride-share, the drive takes around 30 minutes.

  • It usually takes 2 hours to get there on public transport.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Denver to Belfast. Reserve one of these accommodation options near BFS instead:

  • Pick up a Belfast International Airport rental car and discover Belfast and beyond with your own set of wheels. Budget, Drivalia and Dollar are popular providers you can book with here.

  • To lock in the lowest price, reserve your vehicle from Belfast International Airport about three weeks in advance of your Denver to Belfast flight.

George Best Belfast City Airport (BHD)

  • As soon as your flight from Denver to Belfast has arrived, you can get to the city centre in about 10 minutes by car. Central Belfast is approximately 5 kilometres from George Best Belfast City Airport (BHD).

  • If you choose to travel on public transport, the journey will take you 20 minutes or so.

  • There are some comfortable places to lay your head close to BHD. Unwind after your Denver to Belfast flight at any of these perfectly located options:

  • No need to worry about public transport schedules or waiting in a long cab line. Grab a George Best Belfast City Airport rental car and take your trip in whatever direction you choose. Compare rates and availability from Budget, Sixt and Alamo.

  • Call dibs on the best options. Securing your ride from BHD two weeks in advance often means better prices and a wider range of vehicles.

Best time to go to Belfast

  • August is the busiest month for flights from Denver to Belfast. To skip the crowds, go to Belfast in January.

  • Lock in a Denver to Belfast ticket departing in July if you're eager to explore the city during its warmest month. You can expect temperatures in Belfast to range from 10ºC (50ºF) to 19ºC (66ºF).

  • If you want cooler conditions, search for a cheap flight from Denver to Belfast in January when temperatures average between 1ºC (34ºF) and 8ºC (46ºF).

More about Belfast

  • Once you've booked your flight from Denver to Belfast, decide where you'll be dropping your bags. Make one of these accommodation options your base for exploring Belfast:

  • There are so many things to see and do in this city it can be difficult to know where to begin. Titanic Belfast, Crumlin Road Gaol Visitor Attraction and Conference Centre and Botanic Gardens are major attractions which should be on any well-planned Belfast itinerary.

Explore more of United Kingdom

  • Birmingham is just one of the many cities in United Kingdom waiting to be explored once you've taken in the sights of Belfast. Around 354 kilometres to the south-east, check out popular attractions including Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • If you're interested in discovering another corner of United Kingdom, consider Bristol, about 418 kilometres south-east of Belfast. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are the start of reasons to visit.

Plan the rest of your trip from Denver to Belfast

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.