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Cheap flights from Northern Ireland to the United Kingdom from £17

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to the United Kingdom departing on 29/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
easyJet Logo
09:55 - 10:45
BFS
-
EDI
0h 50mdirect
easyJet Logo
06:00 - 06:50
EDI
-
BFS
0h 50mdirect
£37easyJet
Sun, 18 Jan - Mon, 19 Jan
easyJet Logo
20:20 - 21:10
BFS
-
EDI
0h 50mdirect
easyJet Logo
21:45 - 22:35
EDI
-
BFS
0h 50mdirect
£37easyJet
Fri, 16 Jan - Fri, 23 Jan
easyJet Logo
12:10 - 13:05
BFS
-
EDI
0h 55mdirect
easyJet Logo
10:50 - 11:40
EDI
-
BFS
0h 50mdirect
£38easyJet
Tue, 17 Mar - Tue, 24 Mar
Ryanair Logo
07:20 - 08:15
BFS
-
EDI
0h 55mdirect
Ryanair Logo
14:00 - 14:55
EDI
-
BFS
0h 55mdirect
£40Ryanair
Sat, 3 Jan - Mon, 5 Jan
easyJet Logo
16:30 - 17:40
BFS
-
LTN
1h 10mdirect
easyJet Logo
07:00 - 08:20
LTN
-
BFS
1h 20mdirect
£40easyJet
Thu, 26 Feb - Fri, 27 Feb
Ryanair Logo
22:20 - 23:40
BFS
-
STN
1h 20mdirect
Ryanair Logo
21:25 - 22:45
STN
-
BFS
1h 20mdirect
£41Ryanair
Mon, 5 Jan - Sat, 10 Jan
British Airways Logo
06:35 - 08:10
BHD
-
LHR
1h 35mdirect
British Airways Logo
15:20 - 16:50
LHR
-
BHD
1h 30mdirect
£76British Airways
Mon, 12 Jan - Mon, 12 Jan
British Airways Logo
06:45 - 08:20
BHD
-
LHR
1h 35mdirect
British Airways Logo
09:45 - 11:10
LHR
-
BHD
1h 25mdirect
£83British Airways
Fri, 20 Mar - Sun, 22 Mar
Multiple Airlines Logo
07:05 - 18:30
BFS
-
LHR
11h 25m1 stop
Multiple Airlines Logo
20:30 - 07:55
LHR
-
BFS
11h 25m1 stop
£173Multiple Airlines
Tue, 3 Feb - Wed, 4 Feb
Multiple Airlines Logo
16:05 - 21:30
BFS
-
LHR
5h 25m1 stop
Multiple Airlines Logo
07:20 - 11:30
LHR
-
BFS
4h 10m1 stop
£234Multiple Airlines
Fri, 23 Jan - Sun, 25 Jan

British Airways flights from Northern Ireland to United Kingdom

Our best British Airways deals on Northern Ireland to United Kingdom flight tickets
British Airways
12 Jan
BHD06:35Belfast City
1h 35m
LHR08:10London Heathrow
12 Jan
LHR15:20London Heathrow
1h 30m
BHD16:50Belfast City
£76
Find similar
British Airways
20 Mar
BHD06:45Belfast City
1h 35m
LHR08:20London Heathrow
22 Mar
LHR09:45London Heathrow
1h 25m
BHD11:10Belfast City
£83
Find similar
British Airways
7 Feb
BHD18:00Belfast City
1h 20m
LHR19:20London Heathrow
8 Feb
LHR07:45London Heathrow
1h 25m
BHD09:10Belfast City
£90
Find similar

KLM flights from Northern Ireland to United Kingdom

Our best KLM deals on Northern Ireland to United Kingdom flight tickets
KLM
14 Jan
BHD17:20Belfast City
16h 10m
1 stop
LCY09:30London City
21 Jan
LCY10:00London City
6h 50m
1 stop
BHD16:50Belfast City
£213
Find similar
KLM
24 Dec
BHD06:30Belfast City
9h 35m
1 stop
LHR16:05London Heathrow
31 Dec
LHR17:05London Heathrow
3h 55m
1 stop
BHD21:00Belfast City
£233
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to United Kingdom 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 18 December 2025.
Use the filters below to find and compare flights from Northern Ireland to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastEdinburgh

BFS - EDI

BFSEDI

Belfast Intl

Sun 18/1

09:55-10:45

Nonstop0h 50m

Edinburgh Turnhouse

Mon 19/1

06:00-06:50

Nonstop0h 50m

£37

BelfastEdinburgh

BFS - EDI

BFSEDI

Belfast Intl

Fri 16/1

20:20-21:10

Nonstop0h 50m

Edinburgh Turnhouse

Fri 23/1

21:45-22:35

Nonstop0h 50m

£37

BelfastEdinburgh

BFS - EDI

BFSEDI

Belfast Intl

Tue 17/3

12:10-13:05

Nonstop0h 55m

Edinburgh Turnhouse

Tue 24/3

10:50-11:40

Nonstop0h 50m

£38

BelfastEdinburgh

BFS - EDI

BFSEDI

Belfast Intl

Sat 3/1

07:20-08:15

Nonstop0h 55m

Edinburgh Turnhouse

Mon 5/1

14:00-14:55

Nonstop0h 55m

£40

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Thu 26/2

16:30-17:40

Nonstop1h 10m

London Luton

Fri 27/2

07:00-08:20

Nonstop1h 20m

£40

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Mon 5/1

22:20-23:40

Nonstop1h 20m

London Stansted

Sat 10/1

21:25-22:45

Nonstop1h 20m

£41

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Mon 12/1

06:35-08:10

Nonstop1h 35m

London Heathrow

Mon 12/1

15:20-16:50

Nonstop1h 30m

£76

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Fri 20/3

06:45-08:20

Nonstop1h 35m

London Heathrow

Sun 22/3

09:45-11:10

Nonstop1h 25m

£83

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Tue 3/2

07:05-18:30

1 stop11h 25m

London Heathrow

Wed 4/2

20:30-07:55

1 stop11h 25m

£173

BelfastLondon

BFS - LHR

BFSLHR

Belfast Intl

Fri 23/1

16:05-21:30

1 stop5h 25m

London Heathrow

Sun 25/1

07:20-11:30

1 stop4h 10m

£234

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Northern Ireland to United Kingdom

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Northern Ireland is in January. Flight prices, which tend to average around £43, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of January, then departing from Northern Ireland during the month March is also very affordable. Most momondo users find prices during this month for around £44.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Northern Ireland to United Kingdom is on a Thursday. Travellers who choose to depart for United Kingdom on a Thursday will often find tickets for as low as £69. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Northern Ireland to United Kingdom for around £81.

What is the cheapest time of day to depart on your flight to United Kingdom?

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £106. Try not to purchase tickets in the afternoon because they tend to be around £569. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Northern Ireland to United Kingdom flight route?

Fly from Belfast Intl to Manchester for the best Northern Ireland - United Kingdom flight prices

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Northern Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £123 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Northern Ireland for as low as £96 on momondo.

What cabin class options are available on Northern Ireland to United Kingdom flights?

There are 3 cabin classes available to choose from on Northern Ireland to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Northern Ireland to United Kingdom flights?

No. A direct flight is the cheapest option for a flight between Northern Ireland to United Kingdom.

Cheap Northern Ireland to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to United Kingdom

Best price found

£15

Fastest flight time

0h 45m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Northern Ireland in the past 72 hours is £15. The best return flight deal from Northern Ireland to United Kingdom found on momondo in the last 72 hours is £27.
The fastest flight from Northern Ireland to United Kingdom takes 0h 45m
Direct flights go from Northern Ireland to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Northern Ireland there are direct flights to London Luton (LTN), Edinburgh Turnhouse (EDI).
Search flight deals

  • When did momondo last update prices for flights from Northern Ireland to United Kingdom?

    Prices for flights from Northern Ireland to United Kingdom are updated daily.

  • How many operators does momondo search for flights from Northern Ireland to United Kingdom?

  • How old do you have to be to fly from Northern Ireland to United Kingdom?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Northern Ireland to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Northern Ireland to United Kingdom?

Best airlines flying from Northern Ireland to United Kingdom

Compare and see reviews for airlines that fly from Northern Ireland to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £16Free CancellationRating
6.3
117 reviews
Search Ryanair flights
easyJetPriceFrom £28Free CancellationRating
6.9
1,851 reviews
Search easyJet flights
RyanairPriceFrom £33Free CancellationRating
6.8
5,223 reviews
Search Ryanair flights
Aer LingusPriceFrom £44Free CancellationRating
7.2
1,399 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £79Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
LoganairPriceFrom £134Free CancellationRating
0.0
0 reviews
Search Loganair flights

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to United Kingdom?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Northern Ireland to United Kingdom for you.

Can I find flights from Northern Ireland to United Kingdom with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to United Kingdom from Northern Ireland with this policy.

How can momondo help me find flights from Northern Ireland to United Kingdom?

Once you have performed a search for Northern Ireland to United Kingdom 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 Northern Ireland to United Kingdom right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to United Kingdom from Northern Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to the United Kingdom

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £31
Flights to Manchesterfrom £33
Flights to Edinburghfrom £31
Flights to Birminghamfrom £31
Flights to Belfastfrom £30
Flights to Glasgowfrom £29
Flights to Bristolfrom £31
Flights to Newcastle upon Tynefrom £30
Flights to Aberdeenfrom £43
Flights to Liverpoolfrom £31
Flights to Leedsfrom £55
Flights to Invernessfrom £32