LHR

€37 Find Cheap Flights 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 to Heathrow departing on 8/9. 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 for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
Travellers love KAYAK
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Everything you should know

Cheapest return fare
€85
Typical prices: €125-€181
British Airways
Wed 13/5Thu 28/5
DUB - LHR • Direct
Cheapest one-way flight
€37
Typical prices: €67-€118
British Airways
Tue 8/9
DUB - LHR • Direct
Top airlines
Most flights • 142 per week
Best reviews • 7.2 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
+1
Top routes
Cheapest
Most popular
Insights
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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
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Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
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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 to Heathrow

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

Wed, 13 May - Thu, 28 May
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
British Airways Logo
16:30 - 18:00
LHR
-
DUB
1h 30mdirect
€85British Airways
Sat, 25 Apr - Sun, 26 Apr
British Airways Logo
20:15 - 21:30
DUB
-
LHR
1h 15mdirect
British Airways Logo
06:20 - 07:45
LHR
-
DUB
1h 25mdirect
€86British Airways
Wed, 6 May - Wed, 13 May
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
British Airways Logo
13:10 - 14:35
LHR
-
DUB
1h 25mdirect
€87British Airways
Mon, 27 Apr - Wed, 29 Apr
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
British Airways Logo
06:15 - 07:40
LHR
-
DUB
1h 25mdirect
€88British Airways
Thu, 7 May - Thu, 14 May
British Airways Logo
20:20 - 21:35
DUB
-
LHR
1h 15mdirect
British Airways Logo
18:05 - 19:30
LHR
-
DUB
1h 25mdirect
€89British Airways
Thu, 7 May - Thu, 14 May
Aer Lingus Logo
20:30 - 21:45
ORK
-
LHR
1h 15mdirect
Aer Lingus Logo
22:25 - 23:50
LHR
-
ORK
1h 25mdirect
€104Aer Lingus
Thu, 7 May - Thu, 14 May
Aer Lingus Logo
20:30 - 21:45
ORK
-
LHR
1h 15mdirect
Aer Lingus Logo
22:25 - 23:50
LHR
-
ORK
1h 25mdirect
€105Aer Lingus
Sat, 11 Apr - Mon, 20 Apr
Aer Lingus Logo
20:30 - 21:45
ORK
-
LHR
1h 15mdirect
Aer Lingus Logo
22:25 - 23:50
LHR
-
ORK
1h 25mdirect
€105Aer Lingus
Thu, 16 Apr - Mon, 20 Apr
Aer Lingus Logo
20:30 - 21:45
ORK
-
LHR
1h 15mdirect
Aer Lingus Logo
22:25 - 23:50
LHR
-
ORK
1h 25mdirect
€106Aer Lingus
Wed, 13 May - Mon, 18 May
Multiple Airlines Logo
10:40 - 18:55
KIR
-
LHR
8h 15m
1 stop
Multiple Airlines Logo
20:10 - 10:00
LHR
-
KIR
13h 50m
1 stop
€193Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to Heathrow

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

What is the cheapest flight to London Heathrow Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Dublin, at €85 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €104 in the last 3 days.

How much is a flight to London Heathrow Airport?

The average and cheapest price for all round-trip flights to London Heathrow Airport from each origin found by users searching on KAYAK in the last month.

A flight to London Heathrow Airport costs €623 on average. The cheapest price found on KAYAK in the last 2 weeks cost €57 and departed from Shannon. The most popular routes on KAYAK are Dublin to London Heathrow Airport which costs €780 on average, and Shannon to London Heathrow Airport, which costs €706 on average.

See prices from:

What is the cheapest day to fly to London?

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

Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as €569. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €729 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to London Heathrow Airport is January, where tickets cost €117 on average for return flights. On the other hand, the most expensive months are August and December, where the average cost of tickets from Ireland is €164 and €162 respectively. For one-way flights, the best month to travel is January with an average price of €98.

What is the cheapest time of day to fly to London Heathrow Airport?

The average price for all round-trip flights to London Heathrow Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to London Heathrow Airport is generally at night, when round-trip flights cost €366 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is €795.

What is a good deal for flights to London Heathrow Airport?

If you’re looking for cheap airfare to London Heathrow Airport, 25% of our users found tickets to London Heathrow Airport for the following prices or less: From Shannon €193 return, from Dublin €571 return, from Cork €648 return.

How far in advance should I book a flight 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 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, 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 11 weeks before departure.

Good to know – Book Cheap London Heathrow Airport Plane Tickets

Low seasonFebruary
Cheapest flight€37
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from Dublin to London Heathrow Airport

When to book flights to Heathrow

Are your dates flexible? Find out the best times to travel 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. The information is for flights to London based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking London Heathrow Airport flights

  • What is the cheapest flight to London Heathrow Airport?

    In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Dublin, at €85 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €104 in the last 3 days.

  • How far is London Heathrow Airport from central London?

    The distance between London Heathrow Airport and the city centre of London is 23 km.

  • How much is a flight to London?

    On average, a flight to London costs €623. The cheapest price found on KAYAK in the last 2 weeks cost €57 and departed from Shannon Airport.

  • How does KAYAK find such low prices on flights 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 to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

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

Top tips for finding cheap flights to London Heathrow Airport

  • Looking for cheap airfare to London Heathrow Airport? 25% of our users found return tickets to London Heathrow Airport for the following prices or less: From Shannon €125, from Dublin €712, from Cork €3,151
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Reviews of the top airlines flying to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
7.2
Aer LingusOverall score based on 1487 reviews
7.4Boarding
6.6Food
8.1Crew
7.1Comfort
7.0Entertainment
Airline reviews

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

2.0 MediocreAnonymous, Mar 2026
BHD - MAN
Read more Aer Lingus reviews

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experiences I've have had in along time. Would fly with them again.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

Old plane, sold out on snacks, just trashy seats..broken..etc

Good flight. Only negative was the bus journey from plane to the terminal. Didn’t exit t this either BA at T5

Nothing! They canceled our flight to Greece the morning we were supposed to leave and offered us another one 5 days later (for a 9 day trip). They said it was an “operational decision”! Yeah a 777 that was 2/3rds empty, so they probably sent it to the Middle East to make a fortune getting people out of there!!

WiFi wasn’t available to economy until the end of the flight.

Boarding crew were extremely rude. At check in, I showed a medical note from a surgeon stating that I had a medical problem that caused me to end up in an emergency room. The surgeon requested that I get an upgrade so I can travel back home comfortably since I was in a lot of pain. I was alone with my daughters (9 and 14). They made a huge deal about giving me seats although there were so many empty seats in business. Finally, I paid a hefty price for it and the seats were exactly the same as in economy cabins but not as good because there was a forced tray in the middle seat that I couldnt even lift so I can lay down.

Very good staff members with sincere passion and responsibility in their job.

We were unable to check in on line with no explanation! Despite arriving at the airport 3 hours before deprture, my wife and I had no allocated seats and ended up being seated seperately. This is unacceptable! We were both ib the middle of the centre of the aircraft, despite having previously requested an aisle and seat next to it when booking and having been an Exec Club member for 25 years - so much for loyalty! The seats were extremely uncomfortable for such a long flight. I fly a lot and these were, by far, the most uncomfortable seats I've had in many years. It was all fine until we arrived at LHR where we got off the plane quickly, but then had to wait more than 45 minutes in the baggage hall for our bags to arrive, despite the fact that some luggage was already off when we got to the carousel. After 14 1/2 hours flying, this is completely unacceptable and ruined the experience for us.

Very please with the seating that the Kayak staff booked for us!

I liked the movie selection and the speed getting the luggage. I did not like the fact that for premium they did not have a personal kit with toothpaste, I travel all the time in premium economy and bussiness and althought the kit might bot be the same at least you have the smalles kit in premium economy. I did not like either that because i was in the last row of premium economy nothing made it to my seat. They run out of the food I wanted ( it is a surprise because there were only 6-7 rows. They would run out of orange jouice were thy were passing water/orange juice around, they run out of some alcohol. I am undertand running out of it but I don’t understand why mot getting kore. The service I received in row 11 was different from the service in rows 7,8…. Also the screen on my tv was broken. It did not respond to touch. So, in conclusion, if I compare my flight going to Europe with an American airline plane in premium and the one with British, British expereince was significantly much worse. This company is declining fast.

The crew on the flight were not particularly pleasant and fluid restriction was an issue. I was not allowed to fill my water bottle. Crew didn't check on passengers other than meal service.

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Stansted
Luton
Wembley
Gatwick
Hounslow
Milton Keynes
Croydon
Watford
Ilford
Richmond
Guildford
Eastbourne
Hayes
Slough
Southend-on-Sea
Northampton
Maidenhead
Worthing
Ipswich
Swindon

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London