$252 Cheap Flights from Denver (DEN) to Belfast (BHD)

View $252 flight on Sun, Aug 30, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Belfast (BHD-George Best Belfast City)

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Cheap Flights from Denver to Belfast (DEN-BHD)

Prices were available within the past 7 days and start at $252 for one-way flights and $677 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Mar 9 - Mon, Mar 16
DEN
Denver
BHD
Belfast
$677 Roundtrip, found 8 hours ago
$677
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Mon, Mar 9 from Denver to Belfast, returning Mon, Mar 16, priced at $677 found 8 hours ago
American Airlines
Mon, Mar 2 - Mon, Mar 9
DEN
Denver
BHD
Belfast
$681 Roundtrip, found 1 day ago
$681
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Mar 2 from Denver to Belfast, returning Mon, Mar 9, priced at $681 found 1 day ago
American Airlines
Mon, Mar 2 - Mon, Mar 9
DEN
Denver
BHD
Belfast
$683 Roundtrip, found 1 day ago
$683
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Mar 2 from Denver to Belfast, returning Mon, Mar 9, priced at $683 found 1 day ago
American Airlines
Mon, Mar 9 - Mon, Mar 16
DEN
Denver
BHD
Belfast
$687 Roundtrip, found 8 hours ago
$687
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Mon, Mar 9 from Denver to Belfast, returning Mon, Mar 16, priced at $687 found 8 hours ago
American Airlines
Mon, Mar 9 - Mon, Mar 16
DEN
Denver
BHD
Belfast
$687 Roundtrip, found 8 hours ago
$687
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Mon, Mar 9 from Denver to Belfast, returning Mon, Mar 16, priced at $687 found 8 hours ago
American Airlines
Mon, Mar 9 - Mon, Mar 16
DEN
Denver
BHD
Belfast
$689 Roundtrip, found 8 hours ago
$689
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Mon, Mar 9 from Denver to Belfast, returning Mon, Mar 16, priced at $689 found 8 hours ago
British Airways
Wed, Apr 15 - Wed, Apr 29
DEN
Denver
BHD
Belfast
$695 Roundtrip, just found
$695
Roundtrip
just found
Select British Airways flight, departing Wed, Apr 15 from Denver to Belfast, returning Wed, Apr 29, priced at $695 just found
Virgin Atlantic
Wed, Mar 4 - Sun, Mar 8
DEN
Denver
BHD
Belfast
$715 Roundtrip, found 1 day ago
$715
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Wed, Mar 4 from Denver to Belfast, returning Sun, Mar 8, priced at $715 found 1 day ago
Delta
Wed, Feb 25 - Wed, Mar 4
DEN
Denver
BHD
Belfast
$715 Roundtrip, found 7 hours ago
$715
Roundtrip
found 7 hours ago
Select Delta flight, departing Wed, Feb 25 from Denver to Belfast, returning Wed, Mar 4, priced at $715 found 7 hours ago
KLM
Wed, Feb 25 - Fri, Mar 13
DEN
Denver
BHD
Belfast
$771 Roundtrip, found 3 days ago
$771
Roundtrip
found 3 days ago
Select KLM flight, departing Wed, Feb 25 from Denver to Belfast, returning Fri, Mar 13, priced at $771 found 3 days ago

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Alternative airports near Belfast

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Best Belfast City BHD. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $715
BHD
George Best Belfast City
CheapestClosest
Average driving time to city center6 min
Flights from $715

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD) cost?
Grab a cheap one-way flight from $252 or cheap return flight from $677 from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD)?
Planning your trip for March can help you save, as it's the cheapest month for flights between DEN and BHD. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DEN to BHD flight.
How many flights per day from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD)?
Direct flights from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DEN to BHD?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD)?
Opt for a flight from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD) last-minute?
Waiting until right before your break to book a flight from DEN to BHD often results in higher prices. While you may find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to boost your chances of snagging a bargain.
Is it cheaper to book a DEN to BHD flight and hotel package?
Securing a DEN to BHD flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to George Best Belfast City Airport (BHD)?
If you reserved your DEN to BHD flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport
Denver Intl.
Destination airport
George Best Belfast City
Airlines serving
Aer Lingus, American Airlines, British Airways, Delta, Finnair, KLM, Virgin Atlantic
Roundtrip price
$676
Distance
4350 mi

Book with confidence

Denver to Belfast Flights

The cheapest times to fly from Denver to Belfast

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Belfast are during the month of March. You can find some of the cheapest flights from Denver to Belfast with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Belfast

Sunday is one of the best days to book for cheap flights from Denver to Belfast: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Belfast

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Belfast in 2026. You can also book with separate airlines for your outbound and return journeys, from $252 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Belfast flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Belfast airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to Belfast Flights

*Flight schedules are subject to change.

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