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Cheap flights from Denver to Northern Ireland from £638

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
13 Jul — 20 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Denver to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Denver to Northern Ireland
Explore the most affordable flight options available from Denver to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2026.

Tue 1/916:40
DEN
-
BFS
2 stops23h 30m
Multiple Airlines
Sat 12/907:40
BFS
-
DEN
2 stops36h 00m
Multiple Airlines
Deal found 10/6£638
Tue 15/918:40
DEN
-
BHD
1 stop13h 40m
British Airways
Thu 8/1009:35
BHD
-
DEN
1 stop13h 50m
British Airways
Deal found 9/6£691
Tue 1/920:10
DEN
-
BHD
2 stops14h 40m
Multiple Airlines
Sat 12/910:45
BHD
-
DEN
2 stops32h 55m
Multiple Airlines
Deal found 10/6£696
Sun 13/918:40
DEN
-
BHD
1 stop12h 55m
British Airways
Thu 17/920:35
BHD
-
DEN
1 stop26h 55m
British Airways
Deal found 10/6£707
Tue 17/1117:25
DEN
-
BHD
1 stop16h 20m
British Airways
Thu 19/1117:45
BHD
-
DEN
1 stop28h 45m
British Airways
Deal found 8/6£708
Tue 15/910:31
DEN
-
BHD
2 stops17h 14m
American Airlines
Thu 8/1006:30
BHD
-
DEN
1 stop16h 55m
American Airlines
Deal found 9/6£709
Tue 1/918:40
DEN
-
BHD
1 stop15h 55m
British Airways
Tue 15/906:30
BHD
-
DEN
1 stop17h 00m
British Airways
Deal found 10/6£734
Tue 1/918:40
DEN
-
BHD
1 stop15h 55m
British Airways
Fri 11/906:30
BHD
-
DEN
1 stop17h 00m
British Airways
Deal found 11/6£734
Mon 31/818:40
DEN
-
BHD
1 stop13h 50m
British Airways
Fri 11/906:30
BHD
-
DEN
1 stop17h 00m
British Airways
Deal found 10/6£737
Tue 15/916:40
DEN
-
BFS
2 stops23h 40m
Multiple Airlines
Thu 8/1006:10
BFS
-
DEN
2 stops19h 50m
Multiple Airlines
Deal found 9/6£756
Thu 1/1016:40
DEN
-
BFS
2 stops22h 00m
Multiple Airlines
Sun 11/1007:10
BFS
-
DEN
3 stops35h 10m
Multiple Airlines
Deal found 10/6£788
Mon 6/716:40
DEN
-
BFS
2 stops22h 55m
Multiple Airlines
Wed 15/722:45
BFS
-
DEN
3 stops43h 35m
Multiple Airlines
Deal found 11/6£789

Find flight deals from Denver to Northern Ireland

Keep the following information in mind while searching for Denver to Northern Ireland flight deals. Data was last updated 13 June 2026.

Round-trip from

£638
1/9-12/9
  • 1/9-12/9
  • 4 total stops
  • 59h 30m total
  • Denver to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Denver to Northern Ireland 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 13 June 2026.
Use the filters below to find and compare flights from Denver to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 1/9

16:40-23:10

2 stops23h 30m

Belfast Intl

Sat 12/9

07:40-12:40

2 stops36h 00m

£638

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 20/9

18:40-14:35

1 stop12h 55m

Belfast City

Thu 24/9

20:35-16:30

1 stop26h 55m

£707

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 17/11

17:25-16:45

1 stop16h 20m

Belfast City

Thu 19/11

17:45-15:30

1 stop28h 45m

£708
Fastest return journey

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 31/8

18:40-15:30

1 stop13h 50m

Belfast City

Fri 11/9

06:30-16:30

1 stop17h 00m

£738

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 1/9

14:21-15:20

2 stops17h 59m

Belfast City

Fri 11/9

09:35-16:30

1 stop13h 55m

£755

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 1/9

14:21-15:20

2 stops17h 59m

Belfast City

Tue 15/9

06:30-16:30

1 stop17h 00m

£755

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 15/9

16:40-23:20

2 stops23h 40m

Belfast Intl

Thu 8/10

06:10-19:00

2 stops19h 50m

£756

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 1/9

12:42-10:45

2 stops15h 03m

Belfast City

Tue 15/9

06:30-16:57

2 stops17h 27m

£761

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 1/10

16:40-21:40

2 stops22h 00m

Belfast Intl

Sun 11/10

07:10-11:20

3 stops35h 10m

£788

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 6/7

16:40-22:35

2 stops22h 55m

Belfast Intl

Wed 15/7

22:45-11:20

3 stops43h 35m

£789

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 13 resultsSorted by cheapest first
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Best time to book a flight from Denver to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Denver 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 Denver to Northern Ireland
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 Denver to Northern Ireland. 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 from for flights from Denver to Northern Ireland?

    Located just 18.5 mi from the city center, Denver Intl (DEN) is the airport most travelers will use when flying to Northern Ireland from Denver.

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

    Airlines like British Airways fly from Denver to Northern Ireland in about 12h 55m. The time it takes to get you to your destination can typically vary by up to . There are 4347 mi between Denver and Northern Ireland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Northern Ireland 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

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Denver to Northern Ireland for you. Better yet — we are completely free to use.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Denver to Northern Ireland, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from Denver to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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