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Cheap flights from Belfast to Reykjavik Keflavik Intl Airport from £78

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — KEF
16 Aug — 23 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to Keflavik Intl

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Keflavik Intl
Explore the most affordable flight options available from Belfast to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 July 2026.

Fri 13/1106:05
BFS
-
KEF
1 stop11h 45m
Multiple Airlines
Sun 13/1220:45
KEF
-
BFS
2 stops23h 50m
Multiple Airlines
Deal found 15/7£181
Wed 26/807:30
BFS
-
KEF
2 stops28h 55m
Multiple Airlines
Sat 29/808:30
KEF
-
BFS
1 stop7h 00m
Multiple Airlines
Deal found 13/7£215
Fri 13/1118:00
BHD
-
KEF
1 stop15h 45m
easyJet
Sun 13/1221:45
KEF
-
BHD
1 stop9h 45m
easyJet
Deal found 15/7£219
Wed 26/821:50
BFS
-
KEF
1 stop11h 15m
easyJet
Sat 29/808:30
KEF
-
BFS
1 stop23h 30m
easyJet
Deal found 13/7£226
Thu 27/809:15
BFS
-
KEF
2 stops25h 40m
Multiple Airlines
Thu 3/919:35
KEF
-
BFS
2 stops26h 45m
Multiple Airlines
Deal found 13/7£228
Fri 13/1120:00
BHD
-
KEF
1 stop21h 50m
Multiple Airlines
Sun 13/1207:35
KEF
-
BHD
1 stop4h 20m
Multiple Airlines
Deal found 15/7£231
Thu 1/1006:35
BFS
-
KEF
2 stops13h 05m
Multiple Airlines
Sun 4/1019:00
KEF
-
BFS
2 stops25h 55m
Multiple Airlines
Deal found 16/7£236
Wed 26/807:30
BFS
-
KEF
2 stops28h 55m
Multiple Airlines
Wed 2/908:20
KEF
-
BFS
1 stop10h 30m
Multiple Airlines
Deal found 12/7£238
Thu 1/1015:55
BFS
-
KEF
2 stops19h 00m
Multiple Airlines
Mon 5/1008:35
KEF
-
BFS
2 stops21h 50m
Multiple Airlines
Deal found 16/7£250
Thu 1/1007:00
BHD
-
KEF
1 stop10h 45m
easyJet
Sun 4/1009:10
KEF
-
BHD
1 stop5h 55m
easyJet
Deal found 16/7£255
Thu 1/1016:00
BHD
-
KEF
2 stops18h 55m
Multiple Airlines
Mon 5/1008:35
KEF
-
BHD
2 stops22h 00m
Multiple Airlines
Deal found 16/7£258
Mon 23/1119:25
BHD
-
KEF
1 stop15h 30m
British Airways
Thu 26/1111:45
KEF
-
BHD
1 stop7h 25m
British Airways
Deal found 14/7£259

Find flight deals from Belfast to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 July 2026.

Round-trip from

£181

One-way from

£78
13/11-13/12
  • 13/11-13/12
  • 3 total stops
  • 35h 35m total
  • Belfast to Reykjavik
Search Deals
easyJet
  • easyJet
  • 5/9
  • 1 total stop
  • 11h 45m total
  • Belfast to Reykjavik
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Keflavik Intl 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 17 July 2026.
Use the filters below to find and compare flights from Belfast to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Fri 13/11

06:05-17:50

1 stop11h 45m

Reykjavik Keflavik Intl

Sun 13/12

11:05-11:45

1 stop24h 40m

£202

BelfastReykjavik

BHD - KEF

BHDKEF

Belfast City

Fri 13/11

18:00-09:45

1 stop15h 45m

Reykjavik Keflavik Intl

Sun 13/12

21:45-07:30

1 stop9h 45m

£219

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Wed 26/8

21:50-08:05

1 stop11h 15m

Reykjavik Keflavik Intl

Sat 29/8

08:30-09:00

1 stop23h 30m

£226

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Wed 26/8

07:30-11:25

2 stops28h 55m

Reykjavik Keflavik Intl

Wed 2/9

08:20-19:50

1 stop10h 30m

£238

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Wed 26/8

07:30-11:25

2 stops28h 55m

Reykjavik Keflavik Intl

Sat 29/8

19:55-18:55

2 stops22h 00m

£256
Fastest return journey

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Fri 13/11

06:30-17:50

1 stop11h 20m

Reykjavik Keflavik Intl

Sun 13/12

10:05-16:10

1 stop6h 05m

£257

BelfastReykjavik

BHD - KEF

BHDKEF

Belfast City

Mon 23/11

19:25-10:55

1 stop15h 30m

Reykjavik Keflavik Intl

Thu 26/11

11:45-19:10

1 stop7h 25m

£258

BelfastReykjavik

BHD - KEF

BHDKEF

Belfast City

Thu 1/10

16:00-09:55

2 stops18h 55m

Reykjavik Keflavik Intl

Mon 5/10

08:35-07:35

2 stops22h 00m

£258

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Thu 27/8

12:45-09:55

2 stops22h 10m

Reykjavik Keflavik Intl

Thu 3/9

08:45-22:20

1 stop12h 35m

£259

BelfastReykjavik

BHD - KEF

BHDKEF

Belfast City

Tue 1/9

17:30-16:45

2 stops24h 15m

Reykjavik Keflavik Intl

Wed 9/9

20:00-09:20

1 stop12h 20m

£362

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Belfast to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Belfast 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 Belfast to Reykjavik Keflavik Intl Airport

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 Belfast to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Belfast to Reykjavik Keflavik Intl Airport?

    Departing from Belfast to Reykjavik Keflavik Intl Airport will take you 15h 30m. The distance from Belfast to Reykjavik Keflavik Intl Airport is about 870 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Belfast to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Belfast to Keflavik Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Keflavik Intl.

  • Can I find deals for business class flights from Belfast to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Belfast to Keflavik Intl 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

Travelling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Hveragerdi
Kopavogur
Keflavik

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Keflavik Intl flights
Belfast City to Keflavik Intl flights

Fly with Cheapflights

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Keflavik Intl from Belfast.

Can Cheapflights find flights from Belfast to Keflavik Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Belfast to Keflavik Intl flexibly with Cheapflights today.

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