€31 Find Cheap Flights to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 21/5. 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

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

 
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
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Cheap Flight Deals to London

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

Recent return flight deals to London

KAYAK's recommended return flight deals from the most popular airlines that fly to London.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Ryanair Logo
09:55 - 11:05DUB-LTN
1h 10mdirect
Ryanair Logo
09:55 - 11:10LTN-DUB
1h 15mdirect
€60Ryanair
Find Deal
Fri, 9 May - Sun, 11 May
Ryanair Logo
21:35 - 22:55DUB-STN
1h 20mdirect
Ryanair Logo
22:35 - 23:55STN-DUB
1h 20mdirect
€60Ryanair
Find Deal
Wed, 25 Jun - Tue, 15 Jul
British Airways Logo
20:20 - 21:40DUB-LHR
1h 20mdirect
British Airways Logo
06:20 - 07:45LHR-DUB
1h 25mdirect
€80British Airways
Find Deal
Wed, 4 Jun - Tue, 10 Jun
British Airways Logo
20:20 - 21:40DUB-LHR
1h 20mdirect
British Airways Logo
06:20 - 07:45LHR-DUB
1h 25mdirect
€81British Airways
Find Deal
Wed, 4 Jun - Tue, 10 Jun
 Logo
20:45 - 19:55DUB-STN
23h 10m1 stop
 Logo
08:15 - 09:35STN-DUB
1h 20mdirect
Tue, 10 Jun - Tue, 24 Jun
 Logo
22:05 - 08:00DUB-STN
9h 55m1 stop
 Logo
16:30 - 17:50STN-DUB
1h 20mdirect
Sat, 7 Jun - Sat, 14 Jun
Aer Lingus Logo
20:30 - 21:45ORK-LHR
1h 15mdirect
Aer Lingus Logo
22:25 - 23:45LHR-ORK
1h 20mdirect
€109Aer Lingus
Find Deal
Sat, 24 May - Sat, 31 May
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
€112Aer Lingus
Find Deal
Fri, 9 May - Tue, 13 May
Norwegian Logo
08:55 - 16:20DUB-LGW
7h 25m1 stop
Norwegian Logo
20:45 - 08:15LGW-DUB
11h 30m1 stop
€123Norwegian
Find Deal
Wed, 11 Jun - Tue, 17 Jun
Norwegian Logo
08:55 - 14:50DUB-LGW
5h 55m1 stop
Norwegian Logo
20:45 - 08:15LGW-DUB
11h 30m1 stop
€135Norwegian
Find Deal
Wed, 11 Jun - Tue, 17 Jun

KAYAK's insights & trends for flights to London

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

What is the cheapest flight to London?

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 was found on the route from Cork, at €52 return. The most popular connection is from Dublin to London and KAYAK users have found return deals for as low as €33 in the last 3 days.

How much is a flight to London?

The average and cheapest price for all round-trip flights to London from each origin found by users searching on KAYAK in the last month.
A flight to London costs €298 on average. The cheapest price found on KAYAK in the last 2 weeks cost €66 and departed from Cork. The most popular routes on KAYAK are Dublin to London which costs €312 on average, and Shannon to London, which costs €562 on average.
See prices from:

What is the cheapest day to fly to London?

The average price of all round-trip flights to London 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 €415. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €635 on average.

What is the cheapest month to fly to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London, 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 is January, where tickets cost €64 on average for return flights. On the other hand, the most expensive months are May and April, where the average cost of tickets from Ireland is €131 and €120 respectively. For one-way flights, the best month to travel is January with an average price of €48.

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

The average price for all round-trip flights to London 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 is generally at night, when round-trip flights cost €181 on average. The most expensive time of day to fly to London is generally in the evening, which is peak travel time and where the average cost of a ticket is €891.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From Dublin €171 return, from Shannon €172 return, from Cork €262 return.

How far in advance should I book a flight to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London, 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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Stansted Airport (STN), with an average flight price of €66.

Good to know – Book Cheap London Plane Tickets

Low season

January

High season

August

Cheapest flight

€31
Best time to beat the crowds (46% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from Cork to London Gatwick Airport

When to book flights to London

Are your dates flexible? Find out the best times to travel to London 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 flights

  • What is the cheapest flight to London?

    In the last 3 days, the cheapest flight deal to London was found on the route from Cork, at €52 return. The most popular connection is from Dublin to London and KAYAK users have found return deals for as low as €33 in the last 3 days.

  • Which London airport is closest to central London?

    The distance between London City and the city centre of London is 12 km, which makes it the closest of the 6 London airports airports. London Heathrow Airport is 23 km away from the centre, London Gatwick Airport is 38 km away, and London Luton Airport is 45 km away from the city centre London.

  • How much is a flight to London?

    On average, a flight to London costs €298. The cheapest price found on KAYAK in the last 2 weeks cost €66 and departed from Cork Airport.

  • How does KAYAK find such low prices on flights to London?

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London 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?

    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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to London are there each week?

    Each week there are around 436 direct flights from within Ireland to London. The most common day for departures is Friday, with 15% of flights taking off on this day.

See more FAQs

Top tips for finding cheap flights to London

  • Looking for a cheap flight? 25% of our users found flights on this route for €144 or less one-way and €185 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Prefer to fly direct to London?

Find which airlines fly direct to London, which days they fly and book direct flights.

Direct departures

Ireland to London

Monday

ANA, AccesRail, Aegean Airlines, +121 more

ANA, AccesRail, +122 more

Tuesday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Wednesday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Thursday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Friday

ANA, AccesRail, Aegean Airlines, +124 more

ANA, AccesRail, +125 more

Saturday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Sunday

ANA, AccesRail, Aegean Airlines, +126 more

ANA, AccesRail, +127 more

See more direct flights

Direct returns

London to Ireland

Monday

ANA, AccesRail, Aegean Airlines, +121 more

ANA, AccesRail, +122 more

Tuesday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Wednesday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Thursday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Friday

ANA, AccesRail, Aegean Airlines, +124 more

ANA, AccesRail, +125 more

Saturday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Sunday

ANA, AccesRail, Aegean Airlines, +126 more

ANA, AccesRail, +127 more

See more direct flights
See more direct flights

Top 3 airlines flying to London

 
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 London? 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.
7.0
Aer LingusOverall score based on 1068 reviews
7.0Comfort
6.4Food
7.2Boarding
6.7Entertainment
7.9Crew
Airline reviews

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

8.0 ExcellentAnonymous, Apr 2025DUB - LAX
Read more Aer Lingus reviews

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

Plane and seats ok. Dinners going and coming back were not fantastic. Breakfast from Seattle to London fine with bagel, cheese and fried egg. Second meal on London to Seattle not my favorite of kind of pizza sauce in a pastry. Came with water about three different times on each of my long flights. Staff on all very friendly and helpful.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

We ordered kids meals - which were not kid friendly at all! (the breakfast that is - scrambled eggs on a bed of spinach and asparagus?)

Uncomfortable seats. Crazy seat assignments separating families when they could easily have put them together. Good communication from pilot about arrival time after delay in departure. Toilet ran out of water in sink. Snack box poor for flight of this length.

The bed in Club class was not very comfortable, everything else was good.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Great room between the seats, food was excellent, very comfortable overall and could have stayed on the plane even longer

I have noticed that the airlines, including this flight, pretend there is going to be turbulence, announce such, and say they can’t do beverage service. There is no turbulence and the seat belt light goes off 10 minutes before they ask for tray tables up and seat belts back on. They are just trying to spend less money and it’s quite transparent

Gate is far at Leeds Bradford Airport. However, as the flight was less than half full, it was calm and not stressful. Great take off and landing. Friendly staff

Boarding was started early and we were lined up in. A glass tunnel on the tarmac we were left standing there for an hour with no information the flight left and arrived 30 mins late

It was great. We arrived a few minutes late but the crew were concert and kind about it. It was a nice smooth fly thanks be to Jesus. I prayed for smooth flight and Yahuwah answered my prayer.

Need more check in desks at Marrakech. Even if you are travelling with hand luggage only, you still need to 'check in' to get the old style boarding pass. Unfortunately they haven't thought to separate out the people checking in luggage to a separate desk. Flight was delayed leaving but arrived on time. Limited food options on board and very overpriced.

We bought tickets for £30 from kayak but we paid £55 for check in to rayan , they slaught us

Flight was delayed so long we missed our second flight. Entire trip had to be cancelled. Ryanair refused to help us.

Stanton airport is outdated, pure equiped, airport. Fire alarms, power outages is a common routine, wich result ir flights delay , additional money spending and huge gathering of people in airport wich is unsafe.

After you made us check-in I tried to add a suitcase in the internet and also to get help by chet. Nothing work and we pay 60 pounds at Airport. Comper to Easyjet to do the same, was easy and customer friendly.

Boarding was like being hoarded like cattle, all penned in in an area way to small

I missed the flight from Manchester to Dublin because of poor informations from Aer Lingus and the airport, no possibility to check in online, they don't respond to phone calls, I had to buy another tickets to enable me travel to Dublin from Manchester. I want my money to refund.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Stansted
Luton
Gatwick
Milton Keynes
Wembley
Richmond
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Watford
Guildford
Hounslow
Croydon
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Slough
Canterbury
Chelmsford
High Wycombe
Bishop's Stortford
Maidstone
Bedford
Harrow

Everything you need to know for your flight to London

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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