Find flights
When to book
FAQs

Cheap flights from Northern Ireland to Denver from £313

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DEN
18 Apr — 25 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Denver
Explore the most affordable flight options available from Northern Ireland to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 March 2026.

Mon 13/415:20
BHD
-
DEN
1 stop32h 00m
Multiple Airlines
Mon 20/418:40
DEN
-
BHD
1 stop13h 50m
Multiple Airlines
Deal found 15/3£672
Mon 13/408:40
BFS
-
DEN
2 stops17h 20m
Multiple Airlines
Mon 20/416:40
DEN
-
BFS
2 stops21h 15m
Multiple Airlines
Deal found 15/3£675
Wed 15/408:55
BFS
-
DEN
2 stops21h 50m
Multiple Airlines
Wed 22/418:30
DEN
-
BFS
1 stop18h 45m
Multiple Airlines
Deal found 18/3£696
Wed 15/409:50
BHD
-
DEN
2 stops19h 39m
KLM
Wed 22/418:01
DEN
-
BHD
2 stops15h 54m
KLM
Deal found 18/3£706
Sun 12/415:50
BHD
-
DEN
1 stop31h 30m
Multiple Airlines
Sun 19/418:30
DEN
-
BHD
1 stop13h 05m
Multiple Airlines
Deal found 15/3£716
Wed 15/406:30
BHD
-
DEN
1 stop16h 50m
British Airways
Wed 22/418:30
DEN
-
BHD
1 stop12h 05m
British Airways
Deal found 18/3£716
Mon 13/409:50
BHD
-
DEN
2 stops21h 46m
KLM
Mon 20/406:40
DEN
-
BHD
2 stops19h 40m
KLM
Deal found 15/3£717
Mon 13/409:40
BHD
-
DEN
1 stop13h 40m
British Airways
Mon 20/418:30
DEN
-
BHD
1 stop14h 00m
British Airways
Deal found 15/3£720
Wed 22/410:05
BHD
-
DEN
1 stop13h 15m
British Airways
Sun 26/418:30
DEN
-
BHD
1 stop13h 05m
British Airways
Deal found 14/3£725
Sun 12/421:05
BFS
-
DEN
3 stops29h 50m
Multiple Airlines
Sun 19/417:40
DEN
-
BFS
2 stops20h 20m
Multiple Airlines
Deal found 15/3£1,047

Find flight deals from Northern Ireland to Denver

Keep the following information in mind while searching for Northern Ireland to Denver flight deals. Data was last updated 19 March 2026.

Round-trip from

£672

One-way from

£313
13/4-20/4
  • 13/4-20/4
  • 2 total stops
  • 45h 50m total
  • Northern Ireland to Denver
Search Deals
29/5
  • 29/5
  • 3 total stops
  • 39h 35m total
  • Northern Ireland to Denver
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 March 2026.
Use the filters below to find and compare flights from Northern Ireland to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Mon 13/4

15:20-16:20

1 stop32h 00m

Denver Intl

Mon 20/4

18:40-15:30

1 stop13h 50m

£672

BelfastDenver

BFS - DEN

BFSDEN

Belfast Intl

Mon 13/4

08:40-19:00

2 stops17h 20m

Denver Intl

Mon 20/4

16:40-20:55

2 stops21h 15m

£675

BelfastDenver

BFS - DEN

BFSDEN

Belfast Intl

Wed 15/4

08:55-23:45

2 stops21h 50m

Denver Intl

Wed 22/4

18:30-20:15

1 stop18h 45m

£696

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Wed 15/4

09:50-22:29

2 stops19h 39m

Denver Intl

Wed 22/4

18:01-16:55

2 stops15h 54m

£706

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Wed 15/4

06:30-16:20

1 stop16h 50m

Denver Intl

Wed 22/4

18:30-13:35

1 stop12h 05m

£716

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Mon 13/4

09:40-16:20

1 stop13h 40m

Denver Intl

Mon 20/4

14:41-15:30

2 stops17h 49m

£722
Fastest return journey

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Wed 22/4

10:05-16:20

1 stop13h 15m

Denver Intl

Sun 26/4

18:30-14:35

1 stop13h 05m

£725

BelfastDenver

BFS - DEN

BFSDEN

Belfast Intl

Sun 12/4

21:05-19:55

3 stops29h 50m

Denver Intl

Sun 19/4

11:10-13:50

3 stops19h 40m

£1,135

BelfastDenver

BFS - DEN

BFSDEN

Belfast Intl

Sat 2/5

16:55-18:25

3 stops32h 30m

Denver Intl

Sat 9/5

16:05-23:05

2 stops24h 00m

£1,214
Cheapest one-way

BelfastDenver

BHD - DEN

BHDDEN

Belfast City

Fri 29/5

07:00-16:10

3 stops40h 10m

£382

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Northern Ireland to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Northern Ireland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Denver
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Northern Ireland?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly into when you book flights from Northern Ireland to Denver.

  • How long is the flight from Northern Ireland to Denver?

    KLM and British Airways can get you from Northern Ireland to Denver in just under 16h 50m. Your travel time can differ by up to 2h 49m. Airlines will cover a distance of 4347 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Northern Ireland to Denver that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Denver.

  • Can I find deals for business class flights from Northern Ireland to Denver?

    Yes. Cheapflights offers flight deals from Northern Ireland to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Northern Ireland to Denver

Discover the top airline that operate flights from Northern Ireland to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£536Average£744FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Northern Ireland to Denver?

Cheapflights helps you search for flights from Northern Ireland to Denver via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Denver?

Cheapflights helps you find that perfect flight to Denver from Northern Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Northern Ireland to Denver with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to Denver flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Northern Ireland to Denver become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.