CA $502 Cheap Flights from Denver (DEN) to Belfast (BFS)

Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip flights from DEN to Belfast International Airport start from CA $1,417. Make your booking ASAP to secure the best price for your journey. Prices and availability are subject to change. Additional terms apply.

Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.

Flights from DIA airport to Belfast International Airport with flexible change policies are available from several carriers. Simply use our "No change fees" filter while searching. You'll only need to pay the cost difference between the two flights, without any added fees to worry about.

You'll have 7,000 kilometres to cover on the long-haul Denver to Crumlin route. Wear comfy clothes and consider taking a pair of noise-cancelling earphones.

At present, no airlines offer flights directly from DIA airport to Belfast International Airport. You'll need to book a flight with one or more stops. To score the best price and connections, lock in your airfare well in advance.

Flight prices change all the time, so it's no sure thing. While last-minute flight deals between Denver Airport and Belfast International Airport are possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some carriers announce their prices up to a year ahead of the departure date. Expedia is continuously updating the biggest bargains around, so keep checking back and be ready to lock in your seat when the price is low.