Find flights
When to book
FAQs

Cheap flights from Belfast Intl Airport to Reykjavik Keflavik Intl Airport from £107

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — KEF
19 Jun — 26 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Keflavik Intl

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Keflavik Intl
Explore the most affordable flight options available from Belfast Intl to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 May 2026.

Mon 30/1106:40
BFS
-
KEF
1 stop12h 05m
easyJet
Thu 3/1210:00
KEF
-
BFS
1 stop10h 20m
easyJet
Deal found 16/5£194
Mon 8/621:55
BFS
-
KEF
2 stops21h 30m
Multiple Airlines
Mon 15/618:25
KEF
-
BFS
2 stops16h 50m
Multiple Airlines
Deal found 19/5£203
Thu 11/621:40
BFS
-
KEF
2 stops22h 00m
Multiple Airlines
Mon 15/620:30
KEF
-
BFS
2 stops23h 10m
Multiple Airlines
Deal found 17/5£235
Fri 12/622:15
BFS
-
KEF
1 stop10h 35m
easyJet
Mon 15/620:30
KEF
-
BFS
1 stop9h 55m
easyJet
Deal found 16/5£239
Fri 12/619:55
BFS
-
KEF
2 stops24h 20m
Multiple Airlines
Mon 15/618:25
KEF
-
BFS
2 stops16h 50m
Multiple Airlines
Deal found 16/5£242
Sun 12/707:10
BFS
-
KEF
2 stops26h 05m
Multiple Airlines
Thu 23/701:10
KEF
-
BFS
1 stop12h 55m
Multiple Airlines
Deal found 18/5£243
Fri 26/619:20
BFS
-
KEF
1 stop13h 30m
Multiple Airlines
Fri 3/718:25
KEF
-
BFS
2 stops15h 20m
Multiple Airlines
Deal found 19/5£248

Find flight deals from Belfast Intl to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) 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 20 May 2026.

Round-trip from

£203

One-way from

£128
8/6-15/6
  • 8/6-15/6
  • 4 total stops
  • 38h 20m total
  • Belfast to Reykjavik
Search Deals
easyJet
  • easyJet
  • 7/10
  • 1 total stop
  • 19h 15m total
  • Belfast to Reykjavik
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl 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 20 May 2026.
Use the filters below to find and compare flights from Belfast Intl Airport 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

Mon 8/6

21:55-18:25

2 stops21h 30m

Reykjavik Keflavik Intl

Mon 15/6

20:30-07:25

1 stop9h 55m

£215

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Fri 12/6

22:15-07:50

1 stop10h 35m

Reykjavik Keflavik Intl

Mon 15/6

20:30-07:25

1 stop9h 55m

£239

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Fri 12/6

19:55-19:15

2 stops24h 20m

Reykjavik Keflavik Intl

Mon 15/6

18:25-12:15

2 stops16h 50m

£242
Fastest return journey

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Fri 7/8

22:15-07:50

1 stop10h 35m

Reykjavik Keflavik Intl

Wed 12/8

08:20-17:50

1 stop8h 30m

£250

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Sat 11/7

21:40-08:15

1 stop11h 35m

Reykjavik Keflavik Intl

Thu 23/7

01:10-15:05

1 stop12h 55m

£266

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Fri 26/6

22:15-07:50

1 stop10h 35m

Reykjavik Keflavik Intl

Fri 3/7

19:30-08:25

1 stop11h 55m

£278

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Sat 11/7

21:40-08:15

1 stop11h 35m

Reykjavik Keflavik Intl

Thu 23/7

08:45-22:20

1 stop12h 35m

£284

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Mon 8/6

15:35-07:50

1 stop17h 15m

Reykjavik Keflavik Intl

Mon 15/6

20:30-07:25

1 stop9h 55m

£296

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Sat 11/7

06:55-18:40

2 stops12h 45m

Reykjavik Keflavik Intl

Wed 22/7

08:20-19:50

1 stop10h 30m

£325
Cheapest one-way

BelfastReykjavik

BFS - KEF

BFSKEF

Belfast Intl

Mon 22/6

14:40-07:50

1 stop18h 10m

£110

Flights are sorted by cheapest return flights first.

Deals found on 19/5

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Belfast Intl to Keflavik Intl

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

    There are many flights that can get you from Belfast Intl Airport to Reykjavik Keflavik Intl Airport in 10h 35m. Fly via easyJet to get the fastest option. The distance between Belfast Intl Airport and Reykjavik Keflavik Intl Airport is about 860 mi.

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl 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
Keflavik

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.

Alternative routes for Belfast Intl to Keflavik Intl

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

Deals for Belfast Intl to Keflavik Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast Intl to Keflavik Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Belfast Intl to Keflavik Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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.