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Cheap flights from Reykjavik Keflavik Intl Airport to Belfast from £148

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Reykjavik Keflavik Intl Airport to Belfast departing on 25/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Reykjavik Keflavik Intl Airport to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
easyJet Logo
09:50 - 22:20
KEF
-
BFS
12h 30m
1 stop
easyJet Logo
19:15 - 10:05
BFS
-
KEF
14h 50m
1 stop
£150easyJet
Fri, 6 Mar - Fri, 13 Mar
Multiple Airlines Logo
09:50 - 20:25
KEF
-
BFS
10h 35m
1 stop
Multiple Airlines Logo
14:30 - 09:40
BFS
-
KEF
19h 10m
2 stops
£192Multiple Airlines
Fri, 6 Mar - Fri, 13 Mar

momondo Fare Finder

 
Customise your flight search to find flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport 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, momondo users made 279,928 searches. Data last updated 22 January 2026.
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

Fly to

Route

Depart

Return

Price

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Fri 6/3

09:50-22:20

1 stop12h 30m

Belfast Intl

Fri 13/3

19:15-10:05

1 stop14h 50m

£150

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Fri 6/3

09:50-20:25

1 stop10h 35m

Belfast Intl

Fri 13/3

14:30-09:40

2 stops19h 10m

£192

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Thu 25/6

08:45-22:20

1 stop12h 35m

£148

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 30/6

10:30-07:05

2 stops19h 35m

£150

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sun 28/6

08:55-08:15

1 stop22h 20m

£150

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sat 27/6

10:30-21:15

2 stops9h 45m

£156

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Fri 26/6

10:30-20:40

2 stops9h 10m

£176

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Thu 25/6

10:30-23:10

2 stops11h 40m

£181

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Sun 28/6

10:30-08:15

2 stops20h 45m

£185

ReykjavikBelfast

KEF - BFS

KEFBFS

Reykjavik Keflavik Intl

Tue 30/6

08:35-10:15

1 stop24h 40m

£206

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

When to book flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Reykjavik Keflavik Intl Airport to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Reykjavik Keflavik Intl Airport to Belfast Intl Airport (KEF to BFS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Reykjavik Keflavik Intl Airport to Belfast Intl Airport

Fastest flight time

12h 30m

Direct flights

None
The fastest flight from Reykjavik Keflavik Intl Airport to Belfast Intl Airport takes 12h 30m
There are no direct flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport. There are no popular flight routes from Reykjavik Keflavik Intl Airport to Belfast Intl Airport.
Search flight deals

  • How far is Reykjavik Keflavik Intl to Belfast Intl by plane?

    The straight-line distance from Reykjavik Keflavik Intl to Belfast Intl is 859.9 mi. 12h 30m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport?

    Prices for flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport refresh daily.

  • How old do you have to be to fly from Reykjavik Keflavik Intl Airport to Belfast Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Reykjavik Keflavik Intl Airport to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The required travel and health documents for your Belfast Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport?

    Price Alerts will notify you by email when the price for flights to Belfast Intl Airport from Reykjavik Keflavik Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Reykjavik Keflavik Intl Airport to Belfast Intl Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near Belfast?

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

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Why should I use momondo to find a flight deal from Reykjavik to Belfast?

It is quick and easy to find Reykjavik to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

Can I find flights from Reykjavik to Belfast with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Reykjavik to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from Reykjavik to Belfast?

Once you have performed a search for Reykjavik to Belfast flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Reykjavik to Belfast right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Reykjavik to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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