Cheap flights from the United Kingdom to Belfast from £18

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BHD
5 Jun — 12 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Belfast
Explore the most affordable flight options available from United Kingdom to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 May 2026.

Sat 6/610:55
MAN
-
BFS
Nonstop1h 00m
Ryanair
Sun 7/607:10
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 1/5£33
Thu 14/514:20
MAN
-
BFS
Nonstop1h 00m
Ryanair
Thu 14/522:45
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 4/5£34
Thu 7/514:20
MAN
-
BFS
Nonstop1h 00m
Ryanair
Thu 7/522:45
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 1/5£35
Wed 6/506:05
MAN
-
BFS
Nonstop1h 00m
Ryanair
Thu 7/512:45
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 4/5£35
Sat 27/620:15
MAN
-
BFS
Nonstop1h 00m
Ryanair
Tue 30/607:35
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 1/5£36
Fri 29/507:30
MAN
-
BFS
Nonstop1h 00m
Ryanair
Mon 1/608:40
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 6/5£37
Fri 5/607:30
MAN
-
BFS
Nonstop1h 00m
Ryanair
Sun 7/607:10
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 1/5£38
Tue 2/606:25
MAN
-
BFS
Nonstop1h 00m
easyJet
Tue 9/607:00
BFS
-
MAN
Nonstop1h 00m
easyJet
Deal found 2/5£38
Sat 6/620:00
MAN
-
BFS
Nonstop1h 00m
easyJet
Mon 8/607:05
BFS
-
MAN
Nonstop1h 00m
easyJet
Deal found 4/5£39
Fri 18/918:30
MAN
-
BFS
Nonstop1h 00m
Ryanair
Sun 20/922:00
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 4/5£40
Sat 30/520:15
MAN
-
BFS
Nonstop1h 00m
Ryanair
Sun 31/507:10
BFS
-
MAN
Nonstop1h 00m
Ryanair
Deal found 3/5£41
Fri 29/521:40
STN
-
BFS
Nonstop1h 20m
Ryanair
Mon 1/609:15
BFS
-
STN
Nonstop1h 20m
Ryanair
Deal found 2/5£41

Find flight deals from United Kingdom to Belfast

Keep the following information in mind while searching for United Kingdom to Belfast flight deals. Data was last updated 6 May 2026.

Round-trip from

£33

One-way from

£18

Popular in

July

Cheapest in

January

Average price

£78
Ryanair
  • Ryanair
  • 6/6-7/6
  • Nonstop
  • 2h 00m total
  • United Kingdom to Belfast
Ryanair
  • Ryanair
  • 18/7
  • Nonstop
  • 1h 00m total
  • United Kingdom to Belfast
Highest demand for flights based on searches. 24% potential increase in price (£16 potential increase over avg. return price).
Cheapest flight prices on average. 7% potential price decrease (£4 potential savings vs. average return price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Belfast 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 May 2026.
Use the filters below to find and compare flights from the United Kingdom to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Wed 9/9

14:15-15:15

Nonstop1h 00m

Belfast Intl

Fri 11/9

17:05-18:05

Nonstop1h 00m

£35

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Sat 27/6

20:15-21:15

Nonstop1h 00m

Belfast Intl

Tue 30/6

07:35-08:35

Nonstop1h 00m

£36

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Wed 20/5

06:05-07:05

Nonstop1h 00m

Belfast Intl

Thu 21/5

22:45-23:45

Nonstop1h 00m

£36

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Fri 29/5

07:30-08:30

Nonstop1h 00m

Belfast Intl

Mon 1/6

08:40-09:40

Nonstop1h 00m

£37

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Fri 2/10

07:30-08:30

Nonstop1h 00m

Belfast Intl

Sun 4/10

07:10-08:10

Nonstop1h 00m

£38

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Sat 30/5

20:15-21:15

Nonstop1h 00m

Belfast Intl

Sun 31/5

07:10-08:10

Nonstop1h 00m

£41

LondonBelfast

STN - BFS

STNBFS

London Stansted

Tue 16/6

14:55-16:15

Nonstop1h 20m

Belfast Intl

Tue 23/6

20:15-21:35

Nonstop1h 20m

£41

LondonBelfast

STN - BFS

STNBFS

London Stansted

Fri 12/6

21:40-23:00

Nonstop1h 20m

Belfast Intl

Sat 13/6

20:15-21:35

Nonstop1h 20m

£41

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Tue 26/5

06:25-07:25

Nonstop1h 00m

Belfast Intl

Tue 2/6

08:00-09:00

Nonstop1h 00m

£43
Fastest return journey

ManchesterBelfast

MAN - BFS

MANBFS

Manchester

Tue 23/6

06:25-07:25

Nonstop1h 00m

Belfast Intl

Sat 27/6

21:30-22:25

Nonstop0h 55m

£44

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6

Best time to book a flight from United Kingdom to Belfast

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

How far ahead should I book a flight from United Kingdom to Belfast?

The price you pay for your flight from United Kingdom to Belfast may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Belfast (average of £68). Flying from United Kingdom to Belfast in August is currently the most expensive (average of £104). 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 GB to BFS?

Find hourly flight availability from United Kingdom to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 May 2026.

A simple way to save on the total cost of your ticket is to fly from United Kingdom to Belfast in the morning. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight at midday.

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

Use this chart to determine the cheapest time to fly return from United Kingdom to Belfast. Price data was last updated on 2 May 2026.

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

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 6 May 2026.
Check out reviews from past customers who have flown with Aer Lingus,easyJet, andBritish Airways from the United Kingdom to Belfast 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.

Entertainment

7.0

Comfort

7.2

Food

6.6

Overall

7.3

Boarding

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Entertainment

7.0

Comfort

7.2

Food

6.6

Overall

7.3

Boarding

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Entertainment

7.0

Comfort

7.2

Food

6.6

Overall

7.3

Boarding

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Entertainment

7.0

Comfort

7.2

Food

6.6

Overall

7.3

Boarding

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Ryanair
6.4
Okay

Entertainment

7.0

Comfort

7.2

Food

6.6

Overall

7.3

Boarding

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

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

    For as low as £35, Ryanair can have you in Belfast from United Kingdom in 1h. United Kingdom and Belfast are separated by a distance of 183 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from United Kingdom to Belfast one-way?

    One-way options have recently been found by users for as low as £15 on Ryanair. Other airlines that offer cheap prices include easyJet from £18 and Ryanair from £19 one-way.

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom to Belfast 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 United Kingdom to Belfast?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to Belfast (average of £68). Flying from United Kingdom to Belfast in August is currently the most expensive (average of £104). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to Belfast

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from United Kingdom to Belfast

Discover the top 7 airlines that operate flights from United Kingdom to Belfast. 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 May 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£17Average£55FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£18Average£47FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£22Average£75FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£38Average£99FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LoganairCheapest£87Average£187FlexibilityNo cancel feeOn-time79%
Search Loganair flights
British AirwaysCheapest£87Average£190FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£194Average£302FlexibilityNo cancel feeOn-time75%
Search KLM flights

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How does Cheapflights help users find flights from United Kingdom to Belfast?

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from United Kingdom.

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

Yes! Cheapflights helps users easily find flights from United Kingdom to Belfast with no change fees.

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