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Cheap flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport from £49

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 14/2. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — BFS
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Keflavik Intl to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Keflavik Intl to Belfast Intl
Explore the most affordable flight options available from Keflavik Intl to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.

Tue 2/1218:35KEF - BFS
1 stop27h 30measyJet
Tue 9/1208:10BFS - KEF
1 stop9h 35measyJet
Deal found 3/11£123
Tue 2/1218:35KEF - BFS
1 stop27h 30measyJet
Mon 8/1221:00BFS - KEF
1 stop13h 15measyJet
Deal found 3/11£129
Thu 4/1210:00KEF - BFS
1 stop8h 20measyJet
Thu 11/1207:05BFS - KEF
1 stop10h 55measyJet
Deal found 3/11£141
Thu 4/1210:00KEF - BFS
1 stop8h 20measyJet
Tue 9/1208:10BFS - KEF
1 stop9h 35measyJet
Deal found 3/11£142
Sat 6/1219:45KEF - BFS
1 stop12h 40measyJet
Tue 9/1210:35BFS - KEF
1 stop7h 10measyJet
Deal found 3/11£145
Tue 2/1211:05KEF - BFS
1 stop11h 30measyJet
Wed 10/1210:50BFS - KEF
1 stop7h 35measyJet
Deal found 3/11£151
Sat 6/1219:45KEF - BFS
1 stop12h 40measyJet
Wed 10/1210:50BFS - KEF
1 stop7h 35measyJet
Deal found 3/11£152
Thu 4/1210:00KEF - BFS
1 stop8h 20measyJet
Wed 10/1210:50BFS - KEF
1 stop7h 35measyJet
Deal found 3/11£153
Sat 6/1211:00KEF - BFS
1 stop5h 35measyJet
Thu 11/1207:05BFS - KEF
1 stop10h 55measyJet
Deal found 3/11£158
Fri 7/1119:45KEF - BFS
1 stop11h 10mMultiple Airlines
Sun 9/1123:05BFS - KEF
1 stop12h 25mMultiple Airlines
Deal found 3/11£168
Mon 1/1211:55KEF - BFS
1 stop20h 25measyJet
Wed 17/1219:15BFS - KEF
1 stop22h 00measyJet
Deal found 3/11£184
Mon 1/1212:45KEF - BFS
1 stop8h 00mMultiple Airlines
Tue 9/1208:10BFS - KEF
1 stop9h 35mMultiple Airlines
Deal found 3/11£192

Cheap flight deals from Keflavik Intl to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Belfast Intl (BFS). 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 4 November 2025.

Round-trip from

£112

One-way from

£49
easyJet
  • easyJet
  • 28/2-3/3
  • 2 total stops
  • 20h 40m total
  • Reykjavik to Belfast
Search Deals
easyJet
  • easyJet
  • 14/2
  • 1 total stop
  • 15h 35m total
  • Reykjavik to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Keflavik Intl to Belfast 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 4 November 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport that are best for you.

Fly from

Keflavik Intl

Fly to

Belfast Intl

Route

Depart

Return

Price

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sat 28/2

21:05-10:10

1 stop13h 05m

Belfast Intl

Tue 3/3

08:50-16:25

1 stop7h 35m

£112

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 2/12

18:35-22:05

1 stop27h 30m

Belfast Intl

Tue 9/12

08:10-17:45

1 stop9h 35m

£123

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 2/12

18:35-22:05

1 stop27h 30m

Belfast Intl

Mon 8/12

21:00-10:15

1 stop13h 15m

£129

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Thu 4/12

10:00-18:20

1 stop8h 20m

Belfast Intl

Thu 11/12

07:05-18:00

1 stop10h 55m

£141

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 2/12

11:05-16:35

1 stop5h 30m

Belfast Intl

Thu 11/12

07:05-18:00

1 stop10h 55m

£151

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Thu 4/12

10:00-18:20

1 stop8h 20m

Belfast Intl

Wed 10/12

10:50-18:25

1 stop7h 35m

£153

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sat 6/12

11:00-16:35

1 stop5h 35m

Belfast Intl

Thu 11/12

07:05-18:00

1 stop10h 55m

£158

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Mon 1/12

11:55-08:20

1 stop20h 25m

Belfast Intl

Wed 17/12

19:15-17:15

1 stop22h 00m

£184

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Mon 1/12

12:45-20:45

1 stop8h 00m

Belfast Intl

Tue 9/12

08:10-17:45

1 stop9h 35m

£192

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 2/12

11:05-16:35

1 stop5h 30m

Belfast Intl

Sat 13/12

22:25-09:35

1 stop11h 10m

£193

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 16 results
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Best time to book a flight from Keflavik Intl to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to Belfast 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 Reykjavik Keflavik Intl Airport to Belfast Intl Airport?

    Airlines like easyJet fly from Reykjavik Keflavik Intl Airport to Belfast Intl Airport in about 13h 05m. The time it takes to get you to your destination can typically vary by up to . The distance from Reykjavik Keflavik Intl Airport to Belfast Intl Airport is about 860 mi.

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

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

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

    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 Intl.

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

    Yes. Cheapflights offers flight deals from Keflavik Intl to Belfast 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 Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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Fly with Cheapflights

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How does Cheapflights help users find flights from Keflavik Intl to Belfast Intl?

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Why should you use Cheapflights to find cheap flight tickets from Keflavik Intl to Belfast Intl?

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

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

Yes! Cheapflights helps users easily find flights from Keflavik Intl to Belfast Intl with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Keflavik Intl today and book when prices fit your budget.

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