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€34 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 19/10. 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
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Search 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
In the last 7 days, travellers have searched 45,960,529 times on KAYAK, and here's why:

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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 round-trip 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
22:00 - 23:15DUB-LTN
1h 15mdirect
09:00 - 10:15LTN-DUB
1h 15mdirect
€53Ryanair
Find Deal
Thu, 31 Oct - Sun, 3 Nov
21:40 - 23:00DUB-STN
1h 20mdirect
08:15 - 09:35STN-DUB
1h 20mdirect
€53Ryanair
Find Deal
Fri, 25 Oct - Sun, 3 Nov
09:00 - 10:20DUB-STN
1h 20mdirect
06:30 - 07:50STN-DUB
1h 20mdirect
Mon, 21 Oct - Mon, 28 Oct
20:30 - 21:50DUB-LHR
1h 20mdirect
06:30 - 07:55LHR-DUB
1h 25mdirect
€60British Airways
Find Deal
Thu, 6 Feb - Mon, 10 Feb
20:25 - 08:15DUB-LHR
11h 50m1 stop
12:05 - 18:00LHR-DUB
5h 55m1 stop
€62SWISS
Find Deal
Mon, 14 Oct - Thu, 17 Oct
20:35 - 21:55DUB-LHR
1h 20mdirect
06:30 - 07:55LHR-DUB
1h 25mdirect
€63British Airways
Find Deal
Fri, 24 Jan - Mon, 27 Jan
22:50 - 00:10DUB-STN
1h 20mdirect
06:30 - 07:50STN-DUB
1h 20mdirect
Fri, 10 Jan - Mon, 13 Jan
14:30 - 15:55DUB-LHR
1h 25mdirect
19:40 - 20:50LHR-DUB
1h 10mdirect
€86Aer Lingus
Find Deal
Wed, 9 Oct - Sat, 19 Oct
21:25 - 22:40SNN-LHR
1h 15mdirect
19:10 - 20:35LHR-SNN
1h 25mdirect
€89Aer Lingus
Find Deal
Tue, 8 Oct - Thu, 10 Oct
12:55 - 17:50DUB-LGW
4h 55m1 stop
18:45 - 12:05LGW-DUB
17h 20m1 stop
€139SWISS
Find Deal
Sat, 16 Nov - Wed, 20 Nov

Flights to London - Travel Insights & Trends

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 prices found by users searching on KAYAK in the last 72 hours.
If travelling to London, the cheapest city to fly from in the last 3 days was Dublin, with flights as low as €30 one-way and €48 return. Flights from Cork are the most searched and start at $198 for a return trip.

How much is a flight to London?

The average and cheapest price for all flights to London from each origin found by users searching on KAYAK in the last month.
On average, a flight to London costs €192. The cheapest price found on KAYAK in the last 2 weeks cost €17 and departed from Dublin. The most popular routes on KAYAK are Dublin to London which costs €194 on average, and Cork to London, which costs €266 on average.
See prices from:

What is the cheapest day to fly to London?

The average price of all 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 Tuesday where tickets can be as cheap as €116. On the other hand, the most expensive day to fly is Sunday, where prices are €141 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 November, where tickets cost €34 on average for one-way flights. On the other hand, the most expensive months are June and August, where the average cost of tickets from Ireland is €193 and €187 respectively. For return trips, the best month to travel is November with an average price of €60.

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

The average price for all 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 in the evening, when flights cost €108 on average. The most expensive time of day to fly to London is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €118.

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 €59 one-way - €112 return, from Knock €80 one-way - €180 return, from Shannon €85 one-way - €307 return.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 175 days 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 City Airport, with an average flight price of €101.

Good to know

Low season

April

High season

December

Cheapest flight

€34
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Dublin to London Heathrow 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?

    If travelling to London, the cheapest city to fly from in the last 3 days was Dublin, with flights as low as €30 one-way and €48 return. Flights from Cork are the most searched and start at $198 for a return trip.

  • 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 €192. The cheapest price found on KAYAK in the last 2 weeks cost €17 and departed from Dublin 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 466 direct flights from within Ireland to London. The most common day for departures is Wednesday, with 15% of flights taking off on this day.

See more FAQs

Top tips for finding cheap flights to London

  • 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, +122 more

ANA, AccesRail, +123 more

Wednesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Thursday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Friday

ANA, AccesRail, Aegean Airlines, +127 more

ANA, AccesRail, +128 more

Saturday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Sunday

ANA, AccesRail, Aegean Airlines, +128 more

ANA, AccesRail, +129 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, +122 more

ANA, AccesRail, +123 more

Wednesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Thursday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Friday

ANA, AccesRail, Aegean Airlines, +127 more

ANA, AccesRail, +128 more

Saturday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Sunday

ANA, AccesRail, Aegean Airlines, +128 more

ANA, AccesRail, +129 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.
7.2
Aer LingusOverall score based on 1138 reviews
6.5Food
7.3Boarding
6.9Entertainment
8.0Crew
7.1Comfort
Airline reviews

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

10.0 ExcellentConner, Sept 2024DUB - ORD
Read more Aer Lingus reviews

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Probably my favorite airline and way to go to Europe. Everything went smoothly! Food was tasty, crew was pleasant. Really cannot complain!

Great customer service. Frequent updates from the pilot. Smooth flight. Good entertainment. Meal service.

The first leg of my 2 flights were delayed, causing me to miss my second flight and have to stay the whole night in Dublin. Super upset with this experience, and I still need to figure out how to get compensated for this.

Plane could have been cleaner. There were many crumbs and crud around the seat mounts.

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Would be better if there is phone charging ports available

On time and reasonably comfortable. These airlines need to find a way of sitting their passengers in queues whilst waiting to board

It was fine. Communication was great as we were delayed

We arrived at the airport by taxi so as to be there two hours ahead of take-off. On arrival I received a message stating that the flight would be 85 minutes later than planned. An hour later another message stated that it would be a further 20 minutes late. There was no mention of the almost 2 hour delay once we boarded. Needless to say, they didn’t trumpet their “arrive-on-time” signal. At least we got there eventually.

I haven't had a ok flight with Ryanair in so long!

Long delay. Terrible airport - too busy, not enough seating or food/drink outlets.

The seat could have had more cushioning. My backside was sore after 30 minutes of the flight

Seats very uncomfortable for a 4 hour flight, what entertainment? Food overpriced. But sure it’s Ryan Air, what else would I expect?

The flight departed and arrived on time. A member of the staff at the gate was awful. She asked me to get the duty free purchases out of the hand luggage to see if it would fit inside their box, which it did. It was the embarrassment in front of the other passengers and the hassle of getting my stuff out of the bag and back in again that was totally unnecessary. They try to squeeze every single euro they can get out of their passengers. The seats were uncomfortable with little space in between them. The flight was quite noisy with lots of announcements trying to sell food, drinks, gifts and souvenirs etc.

Cardiff is a great airport but they pen you in at a gate way too small for passenger numbers. Called to the gate too soon and air conditioning was not in operation despite the heat. Cardiff should do better as a small relatively quiet regional airport.

The second leg of my flight unexpectedly got canceled. I was stuck at the airport for the whole day and instead of flying out that morning I flew out in the evening. For some of my fellow passengers it was the second cancellation and their original flight was supposed to go out the day before. There was no reason given though getting rebooked was quick even though I would have preferred if I would have been on one of the earlier flights that day. Compensation was a £10 voucher for some food at the airport. I eventually arrived without further incident but but due to the cancellation, it was one of my more frustrating travels of my life.

My flight got cancelled the night before suddenly. They rebooked only half my flights back. I couldn’t contact them for help and then I had to book a separate flight on my own to get to the new flight back that they had booked me on. In Flight services were great. But once the flight got cancelled I was left on my own. Same experience for a traveling partner going to a different destination

This flag ght was cancelled at 3:30 AM the morning of departure! My son and I were nearly stranded until BA rep at airport found me alternate flights home. I had paid for seat upgrades, $75 for one suitcase, had no gluten-free food, had to arrive home at JFK instead of EWR, where my driver would have met me. That day was a pure nightmare!

My flight was cancelled and I was rebooked onto 2 flights on American Airlines: one from Heathrow to Charlotte and then one from Charlotte to Tampa.

Firing with British airways leaves me feeling stressed and disappointed. They are substandard in so many aspects of airline travel.

They denied us boarding on our scheduled flight and experienced significant disruption to our travel plans because of overbooking the flight!

My flight out of Miami was delayed by 2 hours which meant I had to quickly make other arrangements for pick-up in Glasgow. A $9 voucher for food was issued. That’s not much of a gesture in my opinion.

Our first flight was cancelled and we were rebooked on a later flight. Our second flight was delayed by 3 hours but nobody told us anything. We were just expected to wait at the gate. No notice or information. We ended up missing our next flight from London but because we booked separately British Airways won’t do anything about it even though we booked our flights with more than a 7 hour gap. We had to then rebook new flights two days later and stay longer in London.

Didn’t even get on the flight!! BA had a system crash and knocked many peoples boarding passes back for the connecting flight which we all would have made but ended up missing due to being refused past the barrier. There was one member of staff on and when he shift swapped the new staff member called us liars and that we were going to be too late for our flight hence the knock back which was false. I was an hour and ten minutes early for my connection flight at the time of scanning the boarding pass. Waited for three hours and ended up having to book a train home myself which was 4 hours long! Staff were useless and entire experience was an inconvenience. I had been travelling for three months and of course it was when I was back in my home country that I had the first muck up! Will not be touching BA to fly again

why couldn't BA confirm my flight from Milan to Phoenix on AA

Book Cheap London Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to London found on KAYAK in the last 72 hours.
31/10Thu
directRyanair
1h 15mDUB-LTN
3/11Sun
directRyanair
1h 15mLTN-DUB
€53
25/10Fri
directRyanair
1h 20mDUB-STN
3/11Sun
directRyanair
1h 20mSTN-DUB
€53
21/10Mon
direct
1h 20mDUB-STN
28/10Mon
direct
1h 20mSTN-DUB
€57
6/2Thu
directBritish Airways
1h 20mDUB-LHR
10/2Mon
directBritish Airways
1h 25mLHR-DUB
€60
14/10Mon
1 stopSWISS
11h 50mDUB-LHR
17/10Thu
1 stopSWISS
5h 55mLHR-DUB
€62
24/1Fri
directBritish Airways
1h 20mDUB-LHR
27/1Mon
directBritish Airways
1h 25mLHR-DUB
€63
10/1Fri
direct
1h 20mDUB-STN
13/1Mon
direct
1h 20mSTN-DUB
€67
9/10Wed
directAer Lingus
1h 25mDUB-LHR
19/10Sat
directAer Lingus
1h 10mLHR-DUB
€86
8/10Tue
directAer Lingus
1h 15mSNN-LHR
10/10Thu
directAer Lingus
1h 25mLHR-SNN
€89
16/11Sat
1 stopSWISS
4h 55mDUB-LGW
20/11Wed
1 stopSWISS
17h 20mLGW-DUB
€139

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to London found on KAYAK in the last 72 hours.
19/10Sat
directBritish Airways
1h 20mDUB-LHR
€34
31/10Thu
directRyanair
1h 15mDUB-LTN
€34
9/3Sun
directRyanair
1h 20mDUB-STN
€34
14/11Thu
directBritish Airways
1h 20mDUB-LHR
€34
8/10Tue
directAer Lingus
1h 25mDUB-LHR
€36
21/10Mon
directAer Lingus
1h 15mORK-LHR
€41
24/9Tue
directRyanair UK
1h 20mDUB-STN
€43
15/10Tue
1 stopVueling
27h 10mDUB-LGW
€45
16/10Wed
1 stopVueling
16h 55mDUB-LGW
€54
12/10Sat
2 stopsRyanair UK
9h 50mDUB-STN
€77

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Recent domestic flight deals

25/10Fri
directeasyJet
1h 35mEDI-LGW
3/11Sun
directeasyJet
1h 30mLGW-EDI
€64
23/9Mon
directeasyJet
1h 20mEDI-STN
25/9Wed
directeasyJet
1h 20mSTN-EDI
€64
17/1Fri
directeasyJet
1h 10mBFS-LTN
26/1Sun
directeasyJet
1h 15mLTN-BFS
€64
11/12Wed
directBritish Airways
1h 30mEDI-LHR
16/12Mon
directBritish Airways
1h 30mLHR-EDI
€78
28/11Thu
directBritish Airways
1h 35mEDI-LHR
1/12Sun
directBritish Airways
1h 25mLHR-EDI
€79
27/9Fri
direct
1h 10mBFS-LTN
30/9Mon
multi-stop
2h 55mLTN-BFS
€128
26/10Sat
direct
1h 20mBHD-LHR
29/10Tue
multi-stop
3h 35mLHR-BHD
€192
1/2Sat
multi-stopKLM
6h 20mEDI-LHR
4/2Tue
multi-stopKLM
6h 10mLHR-EDI
€230
12/3Wed
multi-stopKLM
5h 50mEDI-LHR
19/3Wed
multi-stopKLM
4h 00mLHR-EDI
€232
3/10Thu
multi-stopLoganair
10h 55mEDI-LHR
6/10Sun
multi-stopLoganair
10h 35mLHR-EDI
€866

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Last minute flights to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to London that are departing in the next 10 days.
17/9Tue
directRyanair
1h 20mDUB-LGW
20/9Fri
directRyanair
1h 25mLGW-DUB
€63
18/9Wed
directRyanair
1h 19mDUB-STN
22/9Sun
multi-stopRyanair
3h 30mSTN-DUB
€76
18/9Wed
multi-stop
9h 15mDUB-STN
19/9Thu
direct
1h 25mSTN-DUB
€78
13/9Fri
directBritish Airways
1h 45mDUB-LGW
16/9Mon
directBritish Airways
1h 45mLGW-DUB
€98
14/9Sat
directBritish Airways
1h 20mDUB-LHR
18/9Wed
directBritish Airways
1h 25mLHR-DUB
€99
14/9Sat
direct
1h 20mDUB-STN
15/9Sun
multi-stop
7h 45mSTN-DUB
€105
17/9Tue
directAer Lingus
1h 15mSNN-LHR
18/9Wed
directAer Lingus
1h 30mLHR-SNN
€119
18/9Wed
directAer Lingus
1h 25mDUB-LHR
25/9Wed
directAer Lingus
1h 20mLHR-DUB
€131
18/9Wed
multi-stopSWISS
13h 10mDUB-LHR
17/10Thu
multi-stopSWISS
19h 00mLHR-DUB
€179
17/9Tue
multi-stopSWISS
13h 10mDUB-LHR
18/10Fri
multi-stopSWISS
10h 10mLHR-DUB
€187

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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.