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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 12/2. 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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Cheap return flights

Enter your travel dates to find the best prices.
easyJet Logo
07:00 - 08:10
BFS
-
LTN
1h 10mdirect
easyJet Logo
15:00 - 16:15
LTN
-
BFS
1h 15mdirect
£35easyJet
Wed, 18 Feb - Tue, 24 Feb
easyJet Logo
20:00 - 21:20
BHD
-
LTN
1h 20mdirect
easyJet Logo
08:00 - 09:25
LTN
-
BHD
1h 25mdirect
£35easyJet
Thu, 12 Mar - Mon, 16 Mar
Ryanair Logo
16:35 - 17:35
BFS
-
MAN
1h 00mdirect
Ryanair Logo
05:45 - 06:45
MAN
-
BFS
1h 00mdirect
£35Ryanair
Thu, 26 Feb - Sun, 1 Mar
Ryanair Logo
22:45 - 00:05
BFS
-
STN
1h 20mdirect
Ryanair Logo
07:45 - 09:05
STN
-
BFS
1h 20mdirect
£35Ryanair
Sun, 8 Mar - Tue, 10 Mar
easyJet Logo
21:00 - 22:10
BFS
-
LTN
1h 10mdirect
easyJet Logo
07:00 - 08:20
LTN
-
BFS
1h 20mdirect
£36easyJet
Thu, 26 Feb - Sat, 28 Feb
Ryanair Logo
06:00 - 07:00
BFS
-
MAN
1h 00mdirect
Ryanair Logo
21:00 - 22:00
MAN
-
BFS
1h 00mdirect
£36Ryanair
Sat, 21 Mar - Sat, 28 Mar
British Airways Logo
19:25 - 20:45
BHD
-
LHR
1h 20mdirect
British Airways Logo
06:15 - 07:40
LHR
-
BHD
1h 25mdirect
£97British Airways
Mon, 16 Mar - Tue, 17 Mar
British Airways Logo
19:25 - 20:45
BHD
-
LHR
1h 20mdirect
British Airways Logo
07:00 - 08:25
LHR
-
BHD
1h 25mdirect
£99British Airways
Wed, 18 Mar - Mon, 23 Mar
Multiple Airlines Logo
11:40 - 20:00
BHD
-
STN
8h 20m
1 stop
Multiple Airlines Logo
06:05 - 14:30
STN
-
BHD
8h 25m
1 stop
£105Multiple Airlines
Wed, 29 Apr - Thu, 30 Apr
Multiple Airlines Logo
18:20 - 22:40
BHD
-
STN
4h 20m
1 stop
Multiple Airlines Logo
06:05 - 11:55
STN
-
BHD
5h 50m
1 stop
£110Multiple Airlines
Wed, 20 May - Mon, 25 May

KLM flights from Northern Ireland to United Kingdom

Our best KLM deals on Northern Ireland to United Kingdom flight tickets
KLM
4 Mar
BHD06:30Belfast City
10h 50m
1 stop
LCY17:20London City
7 Mar
LCY08:40London City
8h 10m
1 stop
BHD16:50Belfast City
£203
KLM
16 Feb
BHD17:20Belfast City
20h 30m
1 stop
LHR13:50London Heathrow
24 Feb
LHR15:45London Heathrow
5h 15m
1 stop
BHD21:00Belfast City
£219

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 Feb
BHD09:05Belfast City
1h 30m
LHR10:35London Heathrow
12 Feb
LHR12:50London Heathrow
1h 25m
BHD14:15Belfast City
£91
British Airways
16 Mar
BHD19:25Belfast City
1h 20m
LHR20:45London Heathrow
18 Mar
LHR09:05London Heathrow
1h 25m
BHD10:30Belfast City
£96
British Airways
16 Mar
BHD19:25Belfast City
1h 20m
LHR20:45London Heathrow
17 Mar
LHR06:15London Heathrow
1h 25m
BHD07:40Belfast City
£97

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 6 February 2026.
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

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Wed 18/2

07:00-08:10

Nonstop1h 10m

London Luton

Tue 24/2

15:00-16:15

Nonstop1h 15m

£35

BelfastLondon

BHD - LTN

BHDLTN

Belfast City

Thu 12/3

20:00-21:20

Nonstop1h 20m

London Luton

Mon 16/3

08:00-09:25

Nonstop1h 25m

£35

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Thu 26/2

16:35-17:35

Nonstop1h 00m

Manchester

Sun 1/3

05:45-06:45

Nonstop1h 00m

£35

BelfastLondon

BFS - STN

BFSSTN

Belfast Intl

Sun 8/3

22:45-00:05

Nonstop1h 20m

London Stansted

Tue 10/3

07:45-09:05

Nonstop1h 20m

£35

BelfastLondon

BFS - LTN

BFSLTN

Belfast Intl

Thu 26/2

21:00-22:10

Nonstop1h 10m

London Luton

Sat 28/2

07:00-08:20

Nonstop1h 20m

£36

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Sat 21/3

06:00-07:00

Nonstop1h 00m

Manchester

Sat 28/3

21:00-22:00

Nonstop1h 00m

£36

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Mon 16/3

19:25-20:45

Nonstop1h 20m

London Heathrow

Tue 17/3

06:15-07:40

Nonstop1h 25m

£97

BelfastLondon

BHD - LHR

BHDLHR

Belfast City

Wed 18/3

19:25-20:45

Nonstop1h 20m

London Heathrow

Mon 23/3

07:00-08:25

Nonstop1h 25m

£99

BelfastLondon

BHD - STN

BHDSTN

Belfast City

Wed 29/4

11:40-20:00

1 stop8h 20m

London Stansted

Thu 30/4

06:05-14:30

1 stop8h 25m

£105

BelfastLondon

BHD - STN

BHDSTN

Belfast City

Wed 20/5

18:20-22:40

1 stop4h 20m

London Stansted

Mon 25/5

06:05-11:55

1 stop5h 50m

£110

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 March. Flight prices, which tend to average around £44, 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 March, then departing from Northern Ireland during the month January is also very affordable. Most momondo users find prices during this month for around £48.

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 £68. 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 £86.

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 £108. Try not to purchase tickets in the afternoon because they tend to be around £581. 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 Glasgow Intl 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 £122 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 £101 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

£17

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 £17. The best return flight deal from Northern Ireland to United Kingdom found on momondo in the last 72 hours is £34.
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), Manchester (MAN).
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 £15Free CancellationRating
6.4
125 reviews
Search Ryanair flights
easyJetPriceFrom £18Free CancellationRating
6.9
1,869 reviews
Search easyJet flights
RyanairPriceFrom £33Free CancellationRating
6.9
5,258 reviews
Search Ryanair flights
Aer LingusPriceFrom £39Free CancellationRating
7.2
1,445 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £81Free CancellationRating
6.7
7,719 reviews
Search British Airways flights
LoganairPriceFrom £133Free 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 £32
Flights to Birminghamfrom £37
Flights to Edinburghfrom £30
Flights to Belfastfrom £31
Flights to Glasgowfrom £30
Flights to Bristolfrom £31
Flights to Newcastle upon Tynefrom £32
Flights to Liverpoolfrom £32
Flights to Aberdeenfrom £37
Flights to Leedsfrom £40
Flights to Invernessfrom £38