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Cheap flights from Reykjavik Keflavik Intl Airport to Belfast from £100

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — BHD
12 May — 19 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Keflavik Intl to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Keflavik Intl to Belfast
Explore the most affordable flight options available from Keflavik Intl to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2026.

Tue 26/519:55
KEF
-
BFS
2 stops26h 25m
Multiple Airlines
Tue 2/620:15
BFS
-
KEF
2 stops24h 00m
Multiple Airlines
Deal found 11/4£191
Wed 8/419:55
KEF
-
BFS
2 stops38h 55m
Multiple Airlines
Fri 8/519:20
BFS
-
KEF
1 stop13h 30m
Multiple Airlines
Deal found 8/4£281
Wed 8/419:55
KEF
-
BHD
2 stops14h 35m
Multiple Airlines
Fri 8/518:30
BHD
-
KEF
1 stop14h 20m
Multiple Airlines
Deal found 8/4£444
Wed 8/411:00
KEF
-
BHD
1 stop6h 55m
British Airways
Fri 8/520:10
BHD
-
KEF
1 stop14h 15m
British Airways
Deal found 8/4£456

Find flight deals from Keflavik Intl to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Belfast (BF1). 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 12 April 2026.

Round-trip from

£191

One-way from

£100
26/5-2/6
  • 26/5-2/6
  • 4 total stops
  • 50h 25m total
  • Reykjavik to Belfast
Search Deals
easyJet
  • easyJet
  • 30/5
  • 1 total stop
  • 22h 25m total
  • Reykjavik to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Keflavik Intl to Belfast 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 12 April 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 26/5

19:55-23:20

2 stops26h 25m

Belfast Intl

Tue 2/6

23:30-07:40

1 stop9h 10m

£191
Cheapest one-way

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sat 30/5

08:30-07:55

1 stop22h 25m

£100
Fastest single journey

ReykjavikBelfast

KEF - BHD

KEFBHD

Reykjavik Keflavik Intl

Sat 30/5

08:30-15:00

1 stop5h 30m

£125

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sat 12/9

08:30-16:30

1 stop7h 00m

£127

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Fri 29/5

09:05-10:45

2 stops24h 40m

£131

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sun 31/5

19:35-21:30

3 stops24h 55m

£132

ReykjavikBelfast

KEF - BHD

KEFBHD

Reykjavik Keflavik Intl

Sat 12/9

08:30-15:00

1 stop5h 30m

£142

ReykjavikBelfast

KEF - BHD

KEFBHD

Reykjavik Keflavik Intl

Sun 13/9

09:10-09:20

1 stop23h 10m

£157

ReykjavikBelfast

KEF - BHD

KEFBHD

Reykjavik Keflavik Intl

Fri 29/5

09:05-13:50

2 stops27h 45m

£166

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 15/9

10:30-20:55

2 stops9h 25m

£207

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 14 resultsSorted by cheapest first
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Best time to book a flight from Keflavik Intl to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Keflavik Intl 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 Reykjavik Keflavik Intl Airport to Belfast
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 Keflavik Intl to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Keflavik Intl to Belfast

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

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

Need flexible booking options for your flight to Belfast from Keflavik Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Keflavik Intl to Belfast become cheaper?

Not ready to book yet? You can track prices for flights from Keflavik Intl to Belfast on Cheapflights with our Price Alert feature and get notified when better prices are available.

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