Cheap Flights from Belfast to Denver International

Compare Belfast to Denver International flight deals

Find the cheapest month or even day of the year to fly to Denver International

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Flight deals from Belfast to Denver International

Looking for a cheap last-minute deal or the best return flight from Belfast to Denver International Airport? If you want to travel next month, return fares start from R 14,455. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Belfast to Denver International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Belfast to Denver International flights are currently cheapest in September.

Belfast to Denver International: Alternative routes

Compare routes from Belfast to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Belfast to Denver: Flight information

The things to know before you go.
Cheapest flight foundR 7,225
Cheapest month to flySeptember

Finding cheap flights from Belfast to Denver International: Frequently asked questions

The best price we found for a return flight from Belfast to Denver International is R 12,631. 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 Belfast to Denver International. But we found flights with one stop from R 12,631.
As of June 2026, there are no flights flying from Belfast to Denver International.
The cheapest month to fly from Belfast to Denver International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Denver International Airport on Tuesday, 22 September 2026.
No airlines currently offer direct flights between Belfast and Denver International Airport. 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 Denver International 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 Denver is around 40 days in advance, so don’t leave your flight to the last minute.

The cheapest airline that flies to Denver International is easyJet .

Flying from Belfast to Denver International Airport (DEN): What you need to know

  • Denver International Airport is located in Denver. The city follows the UTC-7 timezone and is seven hours behind Belfast.

  • Give yourself enough time to catch your flight from Belfast to DEN. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Head to the airport even earlier during popular months like June. Aim for two hours before a domestic departure and as much as four hours for international flights. Once you've checked in, you can use any extra time to relax or grab something to eat.

Airports in Belfast

Belfast International Airport (BFS)

  • You might be able to make your cheap flight from Belfast to DEN even cheaper with a stopover. Just uncheck 'Direct flights only' during your search to find out where you can stop along the way. Paris Charles de Gaulle Airport (CDG) is an option when flying out of Belfast International Airport (BFS).

  • The journey from central Belfast to BFS takes about 45 minutes by public transport. If you drive, ride-share or grab a taxi, you'll cover the 19 kilometres in 25 minutes or so, depending on traffic.

  • Searching for a comfortable hotel close to Belfast International Airport? If you've booked an early flight from Belfast to Denver International Airport, these accommodation options will put you moments from check-in:

  • 68% of flights leaving from Belfast International Airport touch down at their destination on time.

George Best Belfast City Airport (BHD)

  • Make the most of your trip with a stopover on your flight from Belfast to Denver International Airport. London Heathrow Airport (LHR) is one of the main options between George Best Belfast City Airport and DEN.

  • On public transport, you can travel from central Belfast to BHD in about 25 minutes. The airport is roughly 5 kilometres away, and making the journey by car takes approximately 15 minutes.

  • Get your holiday started early with an extra night away from home. Before your Belfast to DEN flight, stay in one of these hotels close to George Best Belfast City Airport:

  • When it comes to keeping flights punctual, George Best Belfast City Airport has an on-time arrival rate of 69%.

About Denver International Airport (DEN)

  • Once your flight from Belfast to Denver International Airport has landed, unwind and relax at a hotel close by. Baymont by Wyndham Denver International Airport is a comfy option that's not too far from DEN.

  • Grab a Denver International Airport rental car and explore Denver and beyond with your own set of wheels. Routes Car Rentals, Dollar and Budget are top outlets you can book with here.

  • For the best deal, reserve your ride around one week in advance of your Belfast to Denver International Airport flight.

  • You'll find DEN at 8500 Pena Boulevard.

Getting from Denver International Airport (DEN) to central Denver

  • Central Denver is around 40 kilometres from Denver International Airport and takes about 35 minutes to reach by car. Explore your options for getting into the city, whether that's with a taxi, car hire or ride-share.

  • If you're travelling by public transport, expect a journey of about 35 minutes.

How to find the cheapest flights from Belfast to Denver International Airport (DEN)

  • R 7,225 is the lowest price for a one-way ticket from Belfast to Denver International Airport. Return flights start from R 12,631. These fares may change based on availability.

  • Don't leave everything to the last moment. You're more likely to find cheap flights from Belfast to DEN if you book early. Airlines often offer some great early bird deals.

  • Cheap Belfast to Denver International Airport tickets are easier to find when your dates are flexible. Use the 'Whole month' search tool to compare fares across each month and then pick the cheapest day.

  • There's no need to search every day to find out if prices have dropped when you create a Price Alert. We'll notify you as soon as there's a better deal on plane tickets from Belfast to DEN.

  • Tailor your travel plans using filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Belfast to Denver International Airport.

The best time to fly from Belfast to Denver International Airport (DEN)

  • Think about the kind of experience you want when planning your trip dates. September is the quietest month to go to Denver. October is when most people book flights from Belfast to Denver International Airport (DEN), which may be ideal if you're chasing more action.

  • Lock in a Belfast to DEN plane ticket departing in July if you're eager to explore the city during its warmest month. You can expect temperatures in Denver to range from 14ºC (57ºF) to 32ºC (90ºF).

  • Look for cheap tickets from Belfast to Denver International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -9ºC (16ºF) and 7ºC (45ºF).

More about Denver

Explore more of the United States

  • Colorado Springs is just one of the many cities in the United States waiting to be discovered after you've seen Denver. Around 113 kilometres away to the south, check out popular attractions including Garden of the Gods, Pikes Peak Region Attractions and Red Rock Canyon.

  • Around 177 kilometres south of Denver, Pueblo is another essential stop in the United States. Get a taste of what this destination has to offer at Rosemount Museum, Cathedral of the Sacred Heart and Minnequa Lake Park.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.