£729 Find Cheap Flights from Denver to Belfast – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£728
Typical prices: £515-£988
British Airways
Thu 1/3Sun 4/3
DEN - BHD • 1 stop
Direct flights
Not available
There are currently no direct flights between Denver and Belfast. You'll need to take a connecting flight to reach the destination.
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Flight Deals

Cheap Flights from Denver to Belfast (DEN-BHD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Denver to Belfast

Mon, 1 Mar - Fri, 5 Mar
British Airways Logo
17:01 - 14:15DEN  Denver Intl-BHD Belfast City
14h 14m1 stop London Heathrow
British Airways Logo
08:35 - 15:10BHD  Belfast City-DEN Denver Intl
13h 35m1 stop London Heathrow
£728British Airways
Mon, 1 Mar - Thu, 4 Mar
British Airways Logo
17:01 - 14:15DEN  Denver Intl-BHD Belfast City
14h 14m1 stop London Heathrow
British Airways Logo
08:50 - 15:10BHD  Belfast City-DEN Denver Intl
13h 20m1 stop London Heathrow
£729British Airways
Wed, 10 Mar - Mon, 22 Mar
British Airways Logo
12:24 - 10:05DEN  Denver Intl-BHD Belfast City
14h 41m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
19:40 - 22:48BHD  Belfast City-DEN Denver Intl
33h 08m2 stops London Heathrow Dallas/Fort Worth
£735British Airways
Wed, 10 Mar - Mon, 22 Mar
British Airways Logo
17:01 - 14:35DEN  Denver Intl-BHD Belfast City
14h 34m1 stop London Heathrow
British Airways Logo
19:40 - 22:48BHD  Belfast City-DEN Denver Intl
33h 08m2 stops London Heathrow Dallas/Fort Worth
£736British Airways
Wed, 10 Mar - Mon, 22 Mar
British Airways Logo
17:01 - 13:15DEN  Denver Intl-BHD Belfast City
13h 14m1 stop London Heathrow
British Airways Logo
19:40 - 16:10BHD  Belfast City-DEN Denver Intl
26h 30m1 stop London Heathrow
£745British Airways
Sun, 18 Apr - Sat, 24 Apr
Multiple Airlines Logo
18:40 - 17:40DEN  Denver Intl-BHD Belfast City
16h 00m1 stop London Heathrow
Multiple Airlines Logo
12:10 - 19:00BHD  Belfast City-DEN Denver Intl
37h 50m3 stops Edinburgh Turnhouse Kastrup Copenhagen Reykjavik Keflavik Intl
£758Multiple Airlines
Sun, 18 Apr - Sat, 24 Apr
British Airways Logo
18:40 - 17:40DEN  Denver Intl-BHD Belfast City
16h 00m1 stop London Heathrow
British Airways Logo
07:05 - 16:30BHD  Belfast City-DEN Denver Intl
16h 25m1 stop London Heathrow
£762British Airways
Sun, 18 Apr - Sat, 24 Apr
British Airways Logo
09:18 - 14:35DEN  Denver Intl-BHD Belfast City
22h 17m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
07:05 - 16:30BHD  Belfast City-DEN Denver Intl
16h 25m1 stop London Heathrow
£771British Airways
Fri, 27 Nov - Fri, 4 Dec
Multiple Airlines Logo
15:40 - 19:00DEN  Denver Intl-BHD Belfast City
20h 20m3 stops Reykjavik Keflavik Intl Dublin London Luton
Multiple Airlines Logo
11:30 - 00:08BHD  Belfast City-DEN Denver Intl
43h 38m3 stops London Gatwick Lisbon Humberto Delgado San Francisco
£804Multiple Airlines
Tue, 8 Dec - Sun, 13 Dec
British Airways Logo
17:01 - 14:50DEN  Denver Intl-BHD Belfast City
14h 49m1 stop London Heathrow
British Airways Logo
09:20 - 15:10BHD  Belfast City-DEN Denver Intl
12h 50m1 stop London Heathrow
£812British Airways
Booking Insights

Price, demand, and travel trends for Denver to Belfast flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Denver to Belfast?

Return flights from Denver to Belfast typically range from £515 to £988. The lowest price found in the past 5 days was £728 on British Airways.

What's the cheapest day of the week to fly from Denver to Belfast?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Denver to Belfast. It's 41% cheaper than the average day, while Saturday is the most expensive, with prices 28% higher.

Find deals

Key details for Denver to Belfast flights

Cheapest flight

£728
Return flight from Denver to Belfast City Airport

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 return price

Your Denver to Belfast flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Denver to Belfast?

    Only Economy class is available on flights from Denver to Belfast.

  • How long is a flight from Denver to Belfast?

    A direct flight from Denver to Belfast takes 00m, covering 4,346 miles.

  • Do I need a passport to fly from Denver to Belfast?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Denver to Belfast flight?

    Return flights from Denver to Belfast range from £515 to £988, with an average of £860 over the past 12 months. Anything below £515 counts as a good deal.

  • What car hire options are available in Belfast?

    Since Belfast is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
    Near Belfast City Airport (BHD) – daily rates from around £31:

    • Budget
    • Sixt
    • Enterprise Rent-A-Car
    • Avis
    • Hertz

    Near Belfast Intl Airport (BFS) – daily rates from around £28:

    • Budget
    • DRIVALIA
    • Sixt
    • Alamo
    • Hertz

  • Which airports can I use when flying from Denver to Belfast?

    Flights from Denver to Belfast usually depart from Denver Intl (DEN) and may arrive at several airports in Belfast area, including Belfast Intl (BFS) and Belfast City (BHD).

  • Which airports do connecting flights from Denver to Belfast pass through?

    Most connecting flights from Denver to Belfast pass through London Heathrow (LHR), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Denver to Belfast?

    Yes. Flexible dates can save you up to 54% on flights from Denver to Belfast. Monday is the cheapest departure day at £515 return on average, while Saturday is the most expensive at £1,109, a difference of £594.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Denver and Belfast?

    Belfast is 6 hours ahead of Denver (British Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Belfast?

    Some of the most popular sights in Belfast are Waterfront Hall, SSE Arena, and Grand Opera House. These are among the most viewed places in Belfast on KAYAK.

Your guide to booking Denver to Belfast flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Saturday. On this route, Monday flights average £515, about £594 less than Saturday fares (54% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Belfast City Airport.

    • Titanic Hotel Belfast
    • Park Avenue
    • Premier Inn Belfast Titanic Quarter

More options for your flight from Denver to Belfast

Complete your trip to Belfast with a hotel stay or car hire

Car hire in Belfast
Hotels in Belfast
Holidays in Belfast