€30 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 3/10. 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

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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Flights Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to London

Tue, 23 Sep - Sat, 27 Sep
Ryanair Logo
20:15 - 21:25DUB-LTN
1h 10mdirect
Ryanair Logo
16:10 - 17:25LTN-DUB
1h 15mdirect
€33Ryanair
Find Deal
Tue, 23 Sep - Sat, 27 Sep
Ryanair Logo
13:00 - 14:20DUB-STN
1h 20mdirect
Ryanair Logo
16:30 - 17:50STN-DUB
1h 20mdirect
€33Ryanair
Find Deal
Fri, 25 Jul - Fri, 1 Aug
 Logo
22:15 - 07:25DUB-STN
9h 10m1 stop
 Logo
22:50 - 00:10STN-DUB
1h 20mdirect
Thu, 28 Aug - Tue, 2 Sep
British Airways Logo
08:35 - 10:10DUB-LHR
1h 35mdirect
British Airways Logo
06:20 - 07:45LHR-DUB
1h 25mdirect
€86British Airways
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Wed, 17 Sep - Sat, 20 Sep
British Airways Logo
10:50 - 12:30DUB-LHR
1h 40mdirect
British Airways Logo
14:55 - 16:20LHR-DUB
1h 25mdirect
€87British Airways
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Sat, 26 Jul - Sat, 2 Aug
 Logo
22:05 - 08:00DUB-STN
9h 55m1 stop
 Logo
22:00 - 23:20STN-DUB
1h 20mdirect
Fri, 11 Jul - Tue, 15 Jul
Aer Lingus Logo
13:05 - 14:30NOC-LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35LHR-NOC
1h 30mdirect
€105Aer Lingus
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Mon, 23 Jun - Tue, 24 Jun
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
€105Aer Lingus
Find Deal
Tue, 8 Jul - Wed, 9 Jul
Vueling Logo
19:05 - 07:00DUB-LGW
11h 55m1 stop
Vueling Logo
19:50 - 07:35LGW-DUB
11h 45m1 stop
€136Vueling
Find Deal
Tue, 8 Jul - Wed, 9 Jul
Vueling Logo
19:05 - 07:00DUB-LGW
11h 55m1 stop
Vueling Logo
19:50 - 07:35LGW-DUB
11h 45m1 stop
€145Vueling
Find Deal
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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 Dublin, at €28 return. The most popular connection is from Cork to London and KAYAK users have found return deals for as low as €53 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 €323 on average. The cheapest price found on KAYAK in the last 2 weeks cost €60 and departed from Dublin. The most popular routes on KAYAK are Dublin to London which costs €332 on average, and Shannon to London, which costs €524 on average.

See prices from:

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 €62 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 €110 and €108 respectively. For one-way flights, the best month to travel is May with an average price of €39.

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 Knock €157 return, from Shannon €179 return, from Dublin €208 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 €60.

Good to know – Book Cheap London Plane Tickets

Low seasonFebruary
High seasonAugust
Cheapest flight€30
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly (24% more expensive on average)
Flight from Dublin to London Luton 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 Dublin, at €28 return. The most popular connection is from Cork to London and KAYAK users have found return deals for as low as €53 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 €323. The cheapest price found on KAYAK in the last 2 weeks cost €60 and departed from Dublin Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as €410. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €642 on average.

  • 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.

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

    The cheapest time of day to fly to London is generally at night, when round-trip flights cost €186 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 €870.

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

    Each week there are around 426 direct flights from within Ireland to London. The most common day for departures is Friday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to London

  • Looking for a cheap flight? 25% of our users found flights on this route for €141 or less one-way and €184 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, +120 more

ANA, AccesRail, +121 more

Wednesday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Thursday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Sunday

ANA, AccesRail, Aegean Airlines, +127 more

ANA, AccesRail, +128 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, +120 more

ANA, AccesRail, +121 more

Wednesday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Thursday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Sunday

ANA, AccesRail, Aegean Airlines, +127 more

ANA, AccesRail, +128 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.
7.1
Aer LingusOverall score based on 1117 reviews
6.4Food
6.8Entertainment
7.2Boarding
7.0Comfort
7.9Crew
Airline reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

4.0 OkayLeo, May 2025DUB - LHR
Read more Aer Lingus reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

Seats weren't very comfortable for a long haul flight but the service made up for it.

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

I liked how they looked after couples by providing a row of 4 seats if available.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

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

The payment system was not working so was unable to connect wifi the entire flight

The boarding call announcements versus the Staff announcements versus the digital signage board on the out-going and returning flights WERE NOT IN SYNC. I was sent through check and re-checks 3 times. WHY?

Absolutely the worst airline. Can’t find anything positive to say. We were in business which is the same as most airlines coach

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

When checking our bags we were told our bags would go through our final destination. This did not happen. When boarding, after group 3 it was a free for all, everyone boards. When served lunch, I asked for anything without dairy, I was given popcorn and gummy snacks. She said she would come back with more options, she never did. Also, when traveling through London, they don’t tell you your gate number until 1 hour before flight leaves, causing everyone to run to their gate.

Full flight, but crew was great. No wifi and no seatback entertainment, so had to read...argh!

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

The crew did not really interact with me which was no problem as I was fine. I did see that they were somewhat short with some passengers but that was not common. Just in general, they did not seem friendly - no requirement to be so but I am used to a friendly crew on most flights. The food was just ok but with a flight that large, I would think it hard to make something more elaborate.

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

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
Wembley
Milton Keynes
Richmond
Watford
Ilford
Hounslow
Slough
Croydon
Guildford
Eastbourne
Canterbury
High Wycombe
Maidstone
Maidenhead
Bishop's Stortford
Harrow
Bedford

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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