BFS - LHR

£84 Find Cheap Flights from Belfast Intl Airport to London Heathrow Airport – Compare and Save

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 Intl to Heathrow departing on 21/10. 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, 0 bags

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£165
Typical prices: £113-£205
Multiple Airlines
Tue 4/8Tue 11/8
BFS - LHR • 1 stop
Cheapest one-way flight
£84
Typical prices: £57-£96
Multiple Airlines
Wed 21/10
BFS - LHR • 1 stop
When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belfast Intl to Heathrow (BFS-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast Intl 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 Intl to Heathrow

Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
05:55 - 07:30
BFS
-
LHR
25h 35m
1 stop
Multiple Airlines Logo
18:15 - 07:05
LHR
-
BFS
12h 50m
1 stop
£165Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
07:00 - 19:00
BFS
-
LHR
12h 00m
1 stop
Multiple Airlines Logo
20:35 - 10:00
LHR
-
BFS
13h 25m
1 stop
£169Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
16:40 - 20:55
BFS
-
LHR
4h 15m
1 stop
Multiple Airlines Logo
15:50 - 22:50
LHR
-
BFS
7h 00m
2 stops
£273Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
16:40 - 20:55
BFS
-
LHR
4h 15m
1 stop
Multiple Airlines Logo
15:50 - 22:50
LHR
-
BFS
7h 00m
2 stops
£278Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
16:40 - 20:55
BFS
-
LHR
4h 15m
1 stop
Multiple Airlines Logo
16:50 - 22:50
LHR
-
BFS
6h 00m
2 stops
£279Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
16:40 - 20:55
BFS
-
LHR
4h 15m
1 stop
Multiple Airlines Logo
15:50 - 22:50
LHR
-
BFS
7h 00m
2 stops
£280Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
15:55 - 21:00
BFS
-
LHR
5h 05m
1 stop
Multiple Airlines Logo
21:35 - 07:50
LHR
-
BFS
10h 15m
1 stop
£287Multiple Airlines
Mon, 20 Jul - Thu, 30 Jul
Multiple Airlines Logo
20:35 - 07:55
BFS
-
LHR
11h 20m
1 stop
Multiple Airlines Logo
06:15 - 11:45
LHR
-
BFS
5h 30m
1 stop
£288Multiple Airlines
Sun, 26 Jul - Wed, 29 Jul
Multiple Airlines Logo
18:00 - 07:55
BFS
-
LHR
13h 55m
1 stop
Multiple Airlines Logo
09:55 - 00:05
LHR
-
BFS
14h 10m
1 stop
£307Multiple Airlines
Mon, 3 Aug - Mon, 10 Aug
Multiple Airlines Logo
20:35 - 07:55
BFS
-
LHR
11h 20m
1 stop
Multiple Airlines Logo
08:55 - 19:55
LHR
-
BFS
11h 00m
1 stop
£313Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Belfast Intl to Heathrow flights

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

How much is a return flight from Belfast Intl Airport to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Belfast Intl Airport to London Heathrow Airport departing in August.

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

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

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

What is the cheapest month to fly from Belfast Intl Airport 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 Intl Airport 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 Intl Airport to London Heathrow Airport is December, where tickets cost £117 (return) on average. On the other hand, the most expensive months are August and May, where the average cost of round-trip tickets is £145 and £143 respectively.

How far in advance should I book a flight from Belfast Intl Airport 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 Intl Airport 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 Intl Airport to London Heathrow Airport, you should book around 6 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

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

Low seasonApril
Cheapest flight£84
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (6% more expensive on average)
Flight from Belfast Intl Airport to London Heathrow Airport

When to book flights from Belfast Intl to Heathrow

Are your dates flexible? Find out the best times to travel from Belfast Intl 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 Intl Airport to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from Belfast Intl Airport to London Heathrow Airport was £84 for a one-way ticket and £165 for a return.

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

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

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

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

  • Which is the best airline for flights from Belfast to London, easyJet or British Airways?

    The two airlines most popular with KAYAK users for flights from Belfast to London are easyJet and British Airways. With an average price for the route of £67 and an overall rating of 6.9, easyJet is the most popular choice. British Airways is also a great choice for the route, with an average price of £137 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Belfast Intl Airport 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 Intl Airport 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 Intl Airport 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 Intl Airport 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 Intl Airport 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 Intl Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast Intl Airport 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 Intl Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Belfast Intl 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 Intl 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 1910 reviews
7.7Crew
6.8Comfort
5.9Food
6.7Boarding
5.5Entertainment
Airline reviews

Fast boarding, smooth takeoff and landing. plenty of space in seats. Excellent air-conditioning on a hot day. Perfect experience

10.0 ExcellentJing, Jun 2026
LTN - CDG
Read more easyJet reviews

Fast boarding, smooth takeoff and landing. plenty of space in seats. Excellent air-conditioning on a hot day. Perfect experience

Whole way through - far more professional and slick than I expected

Good news was that Bag Check was open two and a half hours before the flight, which is essential with the chaotic immigration process. Flight was okay, but sitting at the back of the aircraft, 3 overhead bins on both sides were filled with crew bags and other misc items, so we couldn't put our cabin bags anywhere near us. To add insult, twice the crew managed to drop items that they were taking out of the overhead bins onto my wife's head, who was sitting in an aisle seat.

It was good; the only down side is that once you get to the airport everything is self service, there is no one assisting. I felt like I was working while I was on vacation during the check in process and dropping off the luggage. Really uncertain on what the airlines use payroll nowadays.

You need to make signage at Berlin Airport clearer. Having checked in online we had our boarding passes onlour phones. You do not make it clear that you need to check in again to receive a printed luggage tag. You get to baggage drop off and it says you can only do it with a luggage tag BUT not how to get this.

It was good except they could offer free water and tea/coffe

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

There was an older steward, he is top notch. He is very attentive at the passengers. I do not know his name. Thank you to him.

Good was great. Some of the older crew were grumpy and not customer friendly.

All good, professional service, and arrived close to on time.

Service and food was amazing. Aircraft configuration is weird - stare at a stranger at take off and landing, during flight someone is crawling over your seat. It was lame.

BA Canceled this flight and put us on a flight leaving Aberdeen at 8:00 PM, delaying our return to the states by a full day. The cancellation caused us expenses in both Aberdeen and London and BA was completely unhelpful on the phone and at the airport.

First time flying with them! Loved it! Specially the schedule from Miami and being able to come back directly to New Orleans :)

They lost my luggage on my way to Namibia (I was unable to review that flight as I was in the bush/off line) It took 3 days to get my bag and I had to pay $375.00 to have it transported to my location as it was over 100 Kilometers from that Airport and the local Airlink carrier would not got that far.

Unable to check in online until the morning of flight. No early baggage check available nor any BA personnel present. Poor customer service.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

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

Information on your arrival and departure airports