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Cheap flights from Belfast Intl Airport to the United Kingdom from £15

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LHR
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to United Kingdom

Keep the following information in mind while searching for Belfast Intl to United Kingdom flight deals. Data was last updated 6 November 2025.

Round-trip from

£34

One-way from

£15

Popular in

June

Cheapest in

January

Average price

£50

Good round-trip deal

£16 or less

Good one-way deal

£16 or less
easyJet
  • easyJet
  • 26/11-3/12
  • Nonstop
  • 1h 40m total
  • Belfast to United Kingdom
Search Deals
easyJet
  • easyJet
  • 4/12
  • Nonstop
  • 1h 05m total
  • Belfast to United Kingdom
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Belfast Intl to United Kingdom.
Search Deals
Price to beat on a one-way flight from Belfast Intl to United Kingdom.
Search Deals

Find flight deals from Belfast Intl to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to United Kingdom
Explore the most affordable flight options available from Belfast Intl to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 November 2025.

Tue 16/1207:05BFS - MAN
Nonstop1h 00measyJet
Thu 1/121:25MAN - BFS
Nonstop1h 00measyJet
Deal found 3/11£34
Wed 26/1121:05BFS - EDI
Nonstop0h 50measyJet
Wed 3/1207:00EDI - BFS
Nonstop0h 50measyJet
Deal found 4/11£34
Sat 15/1122:25BFS - MAN
Nonstop1h 00mRyanair
Tue 18/1107:55MAN - BFS
Nonstop1h 00mRyanair
Deal found 3/11£35
Sun 21/1206:00BFS - EDI
Nonstop0h 50measyJet
Sun 28/1207:20EDI - BFS
Nonstop0h 50measyJet
Deal found 6/11£35
Fri 19/1207:05BFS - MAN
Nonstop1h 00measyJet
Fri 26/1221:20MAN - BFS
Nonstop1h 00measyJet
Deal found 2/11£37
Mon 15/1221:15BFS - EDI
Nonstop0h 50measyJet
Thu 18/1207:05EDI - BFS
Nonstop0h 50measyJet
Deal found 5/11£37
Wed 19/1120:55BFS - MAN
Nonstop0h 55measyJet
Wed 26/1106:40MAN - BFS
Nonstop1h 00measyJet
Deal found 4/11£38
Tue 9/1216:30BFS - MAN
Nonstop0h 55measyJet
Thu 11/1212:45MAN - BFS
Nonstop1h 00measyJet
Deal found 5/11£38
Mon 17/1121:15BFS - EDI
Nonstop0h 50measyJet
Wed 19/1107:00EDI - BFS
Nonstop0h 50measyJet
Deal found 5/11£39
Fri 19/1206:30BFS - LGW
Nonstop1h 30measyJet
Fri 26/1206:40LGW - BFS
Nonstop1h 40measyJet
Deal found 4/11£39
Mon 17/1121:00BFS - LTN
Nonstop1h 10measyJet
Tue 2/1207:00LTN - BFS
Nonstop1h 20measyJet
Deal found 4/11£40
Mon 15/1206:00BFS - STN
Nonstop1h 20measyJet
Tue 16/1207:50STN - BFS
Nonstop1h 20measyJet
Deal found 4/11£40

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl 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, Cheapflights users made 858,174 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to the United Kingdom that are best for you.

Fly from

Belfast Intl

Fly to

United Kingdom

Route

Depart

Return

Price

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Fri 16/1

21:00-21:55

Nonstop0h 55m

Manchester

Mon 19/1

19:15-20:15

Nonstop1h 00m

£34

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Fri 13/2

21:00-21:55

Nonstop0h 55m

Manchester

Sun 15/2

09:10-10:10

Nonstop1h 00m

£34

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Tue 16/12

07:05-08:05

Nonstop1h 00m

Manchester

Thu 1/1

21:25-22:25

Nonstop1h 00m

£34

BelfastEdinburgh

BFS - EDI

BFSEDI

Belfast Intl

Wed 26/11

21:05-21:55

Nonstop0h 50m

Edinburgh Turnhouse

Wed 3/12

07:00-07:50

Nonstop0h 50m

£34

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Sat 15/11

22:25-23:25

Nonstop1h 00m

Manchester

Tue 18/11

07:55-08:55

Nonstop1h 00m

£35

BelfastEdinburgh

BFS - EDI

BFSEDI

Belfast Intl

Wed 3/12

17:00-17:55

Nonstop0h 55m

Edinburgh Turnhouse

Wed 10/12

07:00-07:50

Nonstop0h 50m

£35

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Mon 12/1

20:50-21:45

Nonstop0h 55m

Manchester

Sun 18/1

09:10-10:10

Nonstop1h 00m

£36

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Fri 5/12

18:00-19:00

Nonstop1h 00m

Manchester

Sun 7/12

05:45-06:45

Nonstop1h 00m

£37

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Tue 9/12

20:55-21:50

Nonstop0h 55m

Manchester

Thu 11/12

07:30-08:30

Nonstop1h 00m

£37

BelfastManchester

BFS - MAN

BFSMAN

Belfast Intl

Fri 19/12

07:05-08:05

Nonstop1h 00m

Manchester

Fri 26/12

21:20-22:20

Nonstop1h 00m

£37

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 60 results
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6

Best time to book a flight from Belfast Intl to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to the United Kingdom

What is the cheapest month to book a flight from Belfast Intl Airport to United Kingdom?

Currently, March is the cheapest month in which you can book a flight from Belfast Intl Airport to United Kingdom (average of £15). Flying from Belfast Intl Airport to United Kingdom in January is currently the most expensive (average of £18). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BFS to GB?

Find hourly flight availability from Belfast Intl to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 November 2025.

A simple way to save on the total cost of your ticket is to fly from Belfast Intl Airport to United Kingdom in the evening. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight at midday.

What is the cheapest day to fly from Belfast Intl Airport to United Kingdom?

Use this chart to determine the cheapest time to fly return from Belfast Intl to United Kingdom. Price data was last updated on 2 November 2025.

Travellers seeking maximum savings on their Belfast Intl Airport to United Kingdom flight should consider departing on Tuesday at midday when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated 6 November 2025.
Check out reviews from past customers who have flown with Aer Lingus, easyJet, andRyanair from Belfast Intl Airport to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
Aer Lingus
7.2
Good
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
easyJet
6.9
Okay
1,841 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
Ryanair
6.8
Okay
5,186 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
British Airways
6.7
Okay
7,496 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
Ryanair
6.3
Okay
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to United Kingdom. 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 United Kingdom?

    Departing from Belfast Intl Airport to United Kingdom will take you 55m. The distance between Belfast Intl Airport and United Kingdom is about 183 mi. Generally, flights for this route are direct.

  • What are the most popular routes from Belfast Intl Airport to United Kingdom?

    The most popular route from Belfast Intl Airport to United Kingdom is Belfast Intl - London Gatwick. You may also consider Belfast Intl - London Luton or Belfast Intl - Manchester.

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

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

  • How can I find direct flights from Belfast Intl to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to United Kingdom.

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

    Yes. Cheapflights offers flight deals from Belfast Intl to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Belfast Intl Airport to United Kingdom?

    Currently, March is the cheapest month in which you can book a flight from Belfast Intl Airport to United Kingdom (average of £15). Flying from Belfast Intl Airport to United Kingdom in January is currently the most expensive (average of £18). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Belfast Intl to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Belfast Intl to United Kingdom

Discover the top 5 airlines that operate flights from Belfast Intl to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£17Average£50FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£29Average£80FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£34Average£59FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£51Average£96FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£79Average£129FlexibilityNo cancel feeOn-time70%
Search British Airways 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 United Kingdom?

When you search for this flight from Belfast Intl to United Kingdom, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Belfast Intl to United Kingdom by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to United Kingdom from Belfast Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to United Kingdom from Belfast Intl today and book when prices fit your budget.

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