LHR

£51 Find Cheap Flights from Belfast to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Heathrow departing on 21/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to London, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Belfast to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belfast to Heathrow

Thu, 4 Dec - Fri, 5 Dec
British Airways Logo
20:00 - 21:20BHD-LHR
1h 20mdirect
British Airways Logo
06:05 - 07:30LHR-BHD
1h 25mdirect
£88British Airways
Find Deal
Fri, 5 Dec - Sun, 7 Dec
British Airways Logo
19:35 - 20:55BHD-LHR
1h 20mdirect
British Airways Logo
06:50 - 08:15LHR-BHD
1h 25mdirect
£88British Airways
Find Deal
Fri, 5 Dec - Mon, 8 Dec
British Airways Logo
19:35 - 20:55BHD-LHR
1h 20mdirect
British Airways Logo
07:00 - 08:25LHR-BHD
1h 25mdirect
£89British Airways
Find Deal
Sun, 19 Oct - Mon, 20 Oct
British Airways Logo
18:05 - 19:25BHD-LHR
1h 20mdirect
British Airways Logo
07:45 - 09:05LHR-BHD
1h 20mdirect
£90British Airways
Find Deal
Tue, 9 Sep - Thu, 11 Sep
British Airways Logo
20:20 - 21:40BHD-LHR
1h 20mdirect
British Airways Logo
07:30 - 08:50LHR-BHD
1h 20mdirect
£91British Airways
Find Deal
Tue, 19 Aug - Tue, 26 Aug
British Airways Logo
18:30 - 19:50BHD-LHR
1h 20mdirect
British Airways Logo
08:00 - 09:20LHR-BHD
1h 20mdirect
£91British Airways
Find Deal
Sat, 4 Oct - Sun, 5 Oct
British Airways Logo
19:00 - 20:20BHD-LHR
1h 20mdirect
British Airways Logo
10:55 - 12:15LHR-BHD
1h 20mdirect
£92British Airways
Find Deal
Tue, 9 Sep - Wed, 10 Sep
British Airways Logo
18:15 - 19:35BHD-LHR
1h 20mdirect
British Airways Logo
07:40 - 09:00LHR-BHD
1h 20mdirect
£93British Airways
Find Deal
Thu, 28 Aug - Thu, 4 Sep
 Logo
07:00 - 21:25BFS-LHR
14h 25m1 stop
 Logo
07:35 - 19:40LHR-BFS
12h 05m1 stop
Fri, 19 Sep - Sun, 21 Sep
 Logo
20:05 - 21:25BHD-LHR
1h 20mdirect
 Logo
21:40 - 08:35LHR-BHD
10h 55m1 stop
Useful Info

KAYAK's insights & trends for Belfast to Heathrow flights

Get data-powered insights and trends into flights from Belfast to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Belfast to London Heathrow Airport?

What is the cheapest Belfast to London Heathrow Airport flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Belfast to London Heathrow Airport.

Our data shows that the cheapest route for a return flight from Belfast to London Heathrow Airport cost £94 and was between Belfast City Airport (BHD) and London Heathrow Airport (LHR). On average, the best prices are found if you fly from Londonderry (LDY) to London Heathrow Airport (LHR). The average price for a return flight for this route is £94.

What’s the cheapest day of the week to fly from Belfast to London Heathrow Airport?

The average price of all round-trip flights from Belfast to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

For Belfast to London Heathrow Airport, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from London Heathrow Airport back to Belfast, the best deals are generally found on Monday, with Sunday being the most expensive.

What is the cheapest month to fly from Belfast to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Belfast to London Heathrow Airport is January, where tickets cost £88 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £140 and £137 respectively.

How far in advance should I book a flight from Belfast to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Belfast to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Belfast to London Heathrow Airport, you should book around 6 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.


Good to know - Cheap tickets from Belfast to London Heathrow Airport

Cheapest flight£51
Flight from Belfast City Airport to London Heathrow Airport

When to book flights from Belfast to Heathrow

Are your dates flexible? Find out the best times to travel from Belfast to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Belfast to London Heathrow Airport flights

  • What is the cheapest flight from Belfast to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Belfast to London Heathrow Airport was £68 for a one-way ticket and £118 for a return.

  • Which airports will I be using when flying from Belfast to London Heathrow Airport?

    Belfast is served by 2 major airports and there is only 1 main airport in London Heathrow Airport. You will leave Belfast from one of these airports: Belfast Intl or Belfast City. You will be arriving at London Heathrow.

  • Which aircraft models fly most regularly from Belfast to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Belfast to London Heathrow Airport?

    oneworld is the only airline alliance operating flights between Belfast and London Heathrow Airport.

  • How does KAYAK find such low prices on flights from Belfast to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Belfast to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Belfast is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Belfast to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Belfast with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Belfast up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Belfast to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Belfast to London Heathrow.
Find which airlines fly direct from Belfast to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Belfast to London Heathrow

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

London Heathrow to Belfast

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top airlines flying from Belfast to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Belfast to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Belfast to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.9
easyJetOverall score based on 1818 reviews
5.5Entertainment
7.6Crew
6.7Boarding
6.7Comfort
5.9Food
Airline reviews

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

10.0 ExcellentAnonymous, Jun 2025PFO - LGW
Read more easyJet reviews

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

This was our first time using them. I gave okay ratings for food and entertainment because it was minimal or not provided so I couldn't judge, but much better than most budget carriers we have ever used.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

I was hesitant to book with a low cost airline due to previous experience but Easy Jet surpassed my expectations. I would definitely book a flight with them again! Seemless booking, upfront about baggage fees, professional, and helpful staff.

Kayak sent several notifications that the flight was late. This contradicted the information on the airport boards. This was extremely confusing and we very nearly missed the flight purely because we double checked with the info desk when the flight stays said’closed’. Kayak notifications are therefore unreliable and pointlesa

I never got the flight. Someone hacked your information and sold me a fake flight. Didn't know this till I tried to check in and was told the flight didn't exsist and it was a fraudulent ticket. I'm not sure how to get this fixed but I had to pay $1500 to book a last minute flight. I understand that this was not Kayak company that sold me a fake flight but I was sold a fake flight based on my booking with Kayak. I ended up having to pay for an extra night hotel stay. I guess I need to start by contacting someone at kayak to get this resolved. My bank has stopped all bank transactions because of it.

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

the airline check in attendant made me check my carry on bag which was VERY small and contained medicine for both of my parents stating it was a full flight. Upon boarding there were several open seats and available compartments where my bag would have fit. DO NOT SELL tickets inclusive of a carry-on with the intention of REQUIRING people to check it.

Very bad because flight was cancelled and they never informed me i have to wait for three days in hotel to get another flight

Every flight was delayed. They lost our luggage for days.

On time. Clean. Efficient. Just what is required for the short hop.

I love my flight from Munich to San Diego — highly recommend British Airways.

Very crowded, no real explanation of food "chicken or pasta?" After dinner no drinks service. Plane was clean, but little help with finding soaces fir luggage to get into overhead bins. Many passengers putting 2 bags, hats, duty free in overhead bins so no space for roll ons

The boarding was smooth, seats comfortable, crew friendly and helpful.

The crew were good. The flight was on time. The food was bad.

Everything you need to know for your flight from Belfast to Heathrow

Information on your arrival and departure airports

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