Cheap flights from Reykjavik Keflavik Intl Airport to Northern Ireland from £139
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Keflavik Intl to Northern Ireland
Cheapest flights from Keflavik Intl to Northern IrelandExplore the most affordable flight options available from Keflavik Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 Oktober 2025.
Explore the most affordable flight options available from Keflavik Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 Oktober 2025.
Cheap flight deals from Keflavik Intl to Northern Ireland
Keep the following information in mind while searching for Keflavik Intl to Northern Ireland flight deals. Data was last updated 10 Oktober 2025.
Round-trip from | £139 |
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Cheapflights Fare Finder
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Northern Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ReykjavikBelfast
KEF - BFS
KEFBFS
Reykjavik Keflavik Intl
Mo 1/12
11:55-08:20
1 stop20h 25m
Belfast Intl
Di 16/12
08:10-17:45
1 stop9h 35m
ReykjavikBelfast
KEF - BFS
KEFBFS
Reykjavik Keflavik Intl
Mo 1/12
11:55-08:20
1 stop20h 25m
Belfast Intl
Mi 17/12
10:50-18:25
1 stop7h 35m
ReykjavikBelfast
KEF - BHD
KEFBHD
Reykjavik Keflavik Intl
Mo 1/12
11:55-11:40
1 stop23h 45m
Belfast City
Di 16/12
12:15-11:15
1 stop23h 00m
ReykjavikBelfast
KEF - BFS
KEFBFS
Reykjavik Keflavik Intl
Mo 24/11
12:45-09:55
1 stop21h 10m
Belfast Intl
Mo 1/12
21:00-10:15
1 stop13h 15m
ReykjavikBelfast
KEF - BFS
KEFBFS
Reykjavik Keflavik Intl
Mo 1/12
12:00-21:55
1 stop9h 55m
Belfast Intl
Mi 17/12
14:50-11:40
2 stops20h 50m
ReykjavikBelfast
KEF - BFS
KEFBFS
Reykjavik Keflavik Intl
Mo 1/12
12:00-21:55
1 stop9h 55m
Belfast Intl
Di 16/12
09:25-11:00
2 stops25h 35m
ReykjavikBelfast
KEF - BHD
KEFBHD
Reykjavik Keflavik Intl
Mo 1/12
19:35-11:40
1 stop16h 05m
Belfast City
Di 16/12
12:15-11:00
2 stops22h 45m
ReykjavikBelfast
KEF - BHD
KEFBHD
Reykjavik Keflavik Intl
Mo 1/12
20:20-20:30
2 stops24h 10m
Belfast City
Mi 17/12
16:50-11:40
2 stops18h 50m
ReykjavikBelfast
KEF - BHD
KEFBHD
Reykjavik Keflavik Intl
So 1/3
20:05-21:00
1 stop24h 55m
Belfast City
Do 5/3
06:30-10:25
1 stop27h 55m
ReykjavikBelfast
KEF - BHD
KEFBHD
Reykjavik Keflavik Intl
Do 12/3
11:25-21:00
1 stop9h 35m
Belfast City
Mo 16/3
06:30-19:05
1 stop12h 35m
Best time to book a flight from Keflavik Intl to Northern Ireland
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