Find flights
When to book
FAQs

Cheap flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport from £55

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — BFS
14 Dec — 21 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 14 November 2025.

Mon 29/1219:35KEF - BFS
1 stop12h 45measyJet
Mon 5/108:30BFS - KEF
1 stop10h 30measyJet
Deal found 13/11£196
Wed 10/1219:20KEF - BFS
1 stop13h 10measyJet
Wed 17/1219:15BFS - KEF
1 stop22h 00measyJet
Deal found 12/11£199
Mon 29/1219:50KEF - BFS
1 stop13h 05mMultiple Airlines
Mon 5/107:20BFS - KEF
2 stops26h 55mMultiple Airlines
Deal found 13/11£209
Wed 10/1218:05KEF - BFS
1 stop15h 15mMultiple Airlines
Wed 17/1220:40BFS - KEF
2 stops20h 35mMultiple Airlines
Deal found 12/11£223

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 14 November 2025.

Round-trip from

£196

One-way from

£55
easyJet
  • easyJet
  • 29/12-5/1
  • 2 total stops
  • 23h 15m total
  • Reykjavik to Belfast
Search Deals
easyJet
  • easyJet
  • 4/2
  • 1 total stop
  • 8h 20m 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 14 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

Mon 29/12

19:35-08:20

1 stop12h 45m

Belfast Intl

Mon 5/1

08:30-19:00

1 stop10h 30m

£196

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Wed 10/12

19:20-08:30

1 stop13h 10m

Belfast Intl

Wed 17/12

19:15-17:15

1 stop22h 00m

£199

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Mon 29/12

19:50-08:55

1 stop13h 05m

Belfast Intl

Mon 5/1

07:20-10:15

2 stops26h 55m

£209

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Wed 10/12

18:05-09:20

1 stop15h 15m

Belfast Intl

Wed 17/12

20:40-17:15

2 stops20h 35m

£223

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Wed 4/2

11:55-20:15

1 stop8h 20m

£55

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Thu 26/2

09:25-07:50

1 stop22h 25m

£65

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 13/1

11:20-09:55

1 stop22h 35m

£65

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Thu 5/2

09:25-20:55

1 stop11h 30m

£70

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sat 7/2

18:35-08:55

1 stop14h 20m

£70

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 3/2

18:30-13:25

1 stop18h 55m

£71

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 16 results
1
2

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 12h 45m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other flights to Belfast Intl

Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 November 2025.
East Midlands to Belfast Intl flights
Edinburgh to Belfast Intl flights
Stansted to Belfast Intl flights
Manchester to Belfast Intl flights
Southampton to Belfast Intl flights
Liverpool to Belfast Intl flights
Belfast Intl Airport to Nottingham flights
Belfast Intl Airport to Edinburgh flights
Belfast Intl Airport to Antalya flights
Belfast Intl Airport to Newcastle upon Tyne flights
Belfast Intl Airport to Faro flights
Belfast Intl Airport to Nottingham flights
Belfast Intl Airport to Glasgow Intl Airport flights
Belfast Intl Airport to London Stansted Airport flights
Belfast Intl Airport to London Luton Airport flights
Belfast Intl Airport to Edinburgh flights
Belfast Intl Airport to London Gatwick Airport flights
Belfast Intl Airport to London Stansted Airport flights
Belfast Intl Airport to London Luton Airport flights
Belfast Intl Airport to Manchester flights
Belfast Intl Airport to Málaga flights
Belfast Intl Airport to Manchester flights
Belfast Intl Airport to Birmingham flights
Belfast Intl Airport to Krakow flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Belfast Intl from Keflavik Intl today with Cheapflights!

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.