€15 Find Cheap Flights to London – Compare and Save

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Everything you should know

Cheapest return flight
€30
Typical prices: €61-€171
Ryanair
Sat 6/10Sat 13/10
ORK - STN • Direct
Cheapest direct flights
€30
Typical prices: €61-€171
Ryanair
Sat 29/9Sun 30/9
ORK - LGW • Direct
Direct flights
You can fly direct with Ryanair, Aer Lingus, and British Airways. Average duration is 1h 26m
FAQs
FAQs
Top airlines
Most flights • 232 per week
Best reviews • 7.3 score
Airline reviews
+1
Airline reviews
+1
Top routes
Cheapest • 49% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 9 weeks in advance save around 46% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to London

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

Recent return flight deals to London

Tue, 29 Sep - Wed, 30 Sep
Ryanair Logo
08:10 - 09:40ORK  Cork-LGW London Gatwick
1h 30mdirect
Ryanair Logo
12:30 - 14:00LGW  London Gatwick-ORK Cork
1h 30mdirect
€30Ryanair
Fri, 16 Oct - Sun, 18 Oct
Ryanair Logo
06:05 - 07:30ORK  Cork-STN London Stansted
1h 25mdirect
Ryanair Logo
07:20 - 08:45STN  London Stansted-ORK Cork
1h 25mdirect
€30Ryanair
Mon, 5 Oct - Tue, 6 Oct
Multiple Airlines Logo
20:55 - 22:20ORK  Cork-STN London Stansted
1h 25mdirect
Multiple Airlines Logo
06:25 - 07:50STN  London Stansted-ORK Cork
1h 25mdirect
€30Multiple Airlines
Sat, 3 Oct - Tue, 6 Oct
Ryanair Logo
20:15 - 21:40ORK  Cork-STN London Stansted
1h 25mdirect
Ryanair Logo
06:25 - 07:50STN  London Stansted-ORK Cork
1h 25mdirect
€30Ryanair
Mon, 21 Sep - Wed, 23 Sep
Multiple Airlines Logo
20:55 - 22:20ORK  Cork-STN London Stansted
1h 25mdirect
Multiple Airlines Logo
06:30 - 07:55STN  London Stansted-ORK Cork
1h 25mdirect
€31Multiple Airlines
Thu, 24 Sep - Mon, 28 Sep
Multiple Airlines Logo
22:00 - 23:20DUB  Dublin-STN London Stansted
1h 20mdirect
Multiple Airlines Logo
22:45 - 00:05STN  London Stansted-DUB Dublin
1h 20mdirect
€40Multiple Airlines
Thu, 22 Oct - Thu, 29 Oct
Aer Lingus Logo
21:15 - 22:40SNN  Shannon-LHR London Heathrow
1h 25mdirect
Aer Lingus Logo
10:00 - 11:30LHR  London Heathrow-SNN Shannon
1h 30mdirect
€83Aer Lingus
Wed, 21 Oct - Wed, 28 Oct
Aer Lingus Logo
19:00 - 20:20DUB  Dublin-LHR London Heathrow
1h 20mdirect
Aer Lingus Logo
07:50 - 09:10LHR  London Heathrow-DUB Dublin
1h 20mdirect
€86Aer Lingus
Mon, 1 Mar - Thu, 4 Mar
British Airways Logo
20:40 - 22:00DUB  Dublin-LHR London Heathrow
1h 20mdirect
British Airways Logo
18:20 - 19:40LHR  London Heathrow-DUB Dublin
1h 20mdirect
€89British Airways
Thu, 7 Jan - Sun, 10 Jan
British Airways Logo
17:55 - 19:15DUB  Dublin-LHR London Heathrow
1h 20mdirect
British Airways Logo
16:15 - 17:45LHR  London Heathrow-DUB Dublin
1h 30mdirect
€92British Airways
Booking Insights

Price, demand, and travel trends for Ireland to London flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Ireland to London with more confidence.

What is the cheapest flight to London?

Cork to London is the cheapest route at €30 return, found in the past 5 days on KAYAK. Dublin to London is the most popular connection with return deals from €40.

How much is a flight to London?

A return flight to London costs €105 on average, based on data over the past 12 months on KAYAK. Return fares from Milltown (Kerry) average €55, while Dublin runs a bit higher at €101.

What is the cheapest day to fly to London?

Tuesday is the cheapest day to fly to London at €109 return on average over the past 12 months on KAYAK. Friday is the most expensive at €129.

What is the cheapest month to fly to London?

  • January and February are the cheapest months to fly to London with an average price of €91 return.
  • July (€120) and June (€120) are the most expensive.
  • Based on KAYAK data over the past 12 months.

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

Night flights to London are the cheapest at €119 return on average. Afternoon flights are the most expensive at €126.

What is a good deal for flights to London?

Flights under €61 are considered a good deal. 25% of KAYAK users found return flights to London at or below these prices, with the lowest fares from:

  • Milltown (Kerry) €43
  • Dublin €60
.

When are flights to London the cheapest?

Flights to London are cheapest 9 weeks before departure. Booking in this window typically costs about 46% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to London

Low season

February

Cheapest flight

€15
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (14% more expensive on average)
Flights from Shannon 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

Your questions about flights to London, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What is the difference between the most popular and the most frequent airline at London?

    Ryanair operates the most flights from Ireland to London at 232 per week, and for this route Ryanair is also the airline most often selected by KAYAK users searching for flights from Ireland to London. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Which airports serve London?

    Flights to London arrive at: London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

  • Which airports serve London and the surrounding area?

    Flights to London can arrive at several major airports serving the metro area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Nearby alternatives within 80.5 km of London include London City (LCY). This airport is not in London itself but may be useful depending on your route, airline, and onward travel plans.

  • How long are direct flights to London from different departure cities?

    Direct flight time to London varies depending on your departure city:
    • from Milltown (Kerry): 1h 20m
    • from Cork: 1h 15m
    • from Dublin: 1h 15m
    • from Shannon: 1h 20m
    • from Knock: 1h 15m

  • How many flights serve London?

    London receives 64 flights per day and 445 per week from across the world. Dublin has the most flights to London with 305 weekly flights.

  • How do I know if a flight to London is a good deal?

    A good deal on a flight to London is around €61 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How expensive are last-minute flights to London?

    Last-minute fares to London – booked within 2 weeks of departure – run 30% above the average return fare of €105.

  • Which airlines should I consider for flights to London?

Your guide to booking London flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to London, aim to book around 9 weeks before you fly. That window historically saves about 46% versus last-minute pricing based on KAYAK booking data over the last 12 months.
  • For flights to London, recent KAYAK data shows that stronger deals tend to be around €61 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to London in January. Return fares historically average €91 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to evening to save up to €8 per return. Evening flights to London average €119 compared to €126 for midday flights. See the time-of-day chart above for the full breakdown.
  • Bag allowances vary by airline, fare type, cabin class, and route. On flights to London, some airlines may include bags at no extra cost. For example, Ryanair includes a cabin bag and a checked bag in Economy class, Aer Lingus includes a cabin bag and a checked bag in Economy class, and British Airways includes a cabin bag and a checked bag in Economy class. Always check the fare details before booking, since bag policies can change by ticket type.
  • Once you arrive in London, a few great places to start are Hyde Park, London Victoria Station, and Paddington Station. These are popular with first-time visitors and can give you a good feel for the area.

Reviews of the top 3 airlines flying to London

 
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.
7.3
Aer LingusOverall score based on 1754 reviews
7.2Comfort
6.7Food
7.0Entertainment
7.5Boarding
8.1Crew
Airline reviews

Excellent cabin crew. They helped a number of passengers with mobility challenges and a mother with a 3 year old and an infant. Better than most other airlines by far. Well done Eduardo!

10.0 ExcellentRon, Aug 2026
Read more Aer Lingus reviews

Excellent cabin crew. They helped a number of passengers with mobility challenges and a mother with a 3 year old and an infant. Better than most other airlines by far. Well done Eduardo!

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

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

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

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

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

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.

Short flight so not much to rate. Surprised I had to pay for a soda.

Very good need to offer better choice of food for business

Air Lingus flights were delayed on each of the three flights we took. Not a very good , and organized airline.

On time! The wait to board standing outside was miserable. The “priority” boarding is misleading as it does not help the boarding process at all. The bag charges were very high and my expected carry on did not quite fit in the measurement box. The lobby experience at the airport was terrible! Signage and directions were inadequate. The staff was all lovely.

Sadly the experience with the airline is worse one ever. Starting from the state of the inside that was filthy that flies was flying around our legs. The food is expensive than a restaurant, imagine a family of 4 spending almost £50 for just sandwich of bread and ham no tomatoes and lettuce in it and a small container of crips that is not up to 20 pieces and a can of coke or Pepsi, and unfortunately that is a person ffour hours pay of work before tax. I know the blame will go to high cost of living but even at that the price is too much.

Food and entertainment were not available, so my rating on those items isn't actually correct. There should be a "Not relevant" or "Didn't use it" option.

The flight boarded nice and early and this meant there was no sudden rush at the gate. The only down side was the cabin was very cold 🥶

Flying from Hamburg to Stansted was a nightmare if I have to be honest, the flight was due to leave at 15:50 and we ended up not taking off properly till 16:56. They really don’t have enough people doing the sorting of baggage where you get the sticker for your case before the security check, going through security was 10x more faster then the whole baggage situation.

Unnecessarily delayed and remarkably inefficient boarding contributed to a significantly delayed departure. Seats/legroom astonishingly uncomfortable even by Ryanair standards (minimal legroom plus reinforced plastic seat backs ensure you get punched hard in the knees every time the person in front moves, and as a 6-foot passenger I had nowhere else to put my legs. Upon late arrival at the gate in Luton we were kept waiting another 20 minutes before being allowed off the plane. Both Easyjet and Wizzair are currently a better bet.

Big delay on run way not much explanation why, missed a important meeting in Dublin, maybe if they did nt persist measuring everyone bag over 2 cm we would have got off on time.

The lady at the boarding gate was so rude. She was challenging people being in priority and looking them up and down as if they weren’t dressed for first class. This was Ryan air priority. We all sit in the same seats. She loudly called out to embarrass a man who she believed had cheated and got in the priority line. He had a valid priority ticket and even worked for Ryanair. Also challenging visas insisting people download them until they proved on the government website it wasn’t required to print. The Ryanair employee who was challenged said she is always like this. She also pulled people from regular boarding as they were fashionably dressed and upgraded them to priority and changed their seats. That was comical. I think she felt she should be working for Emirates first class, although they would t have stood for her rude behaviour

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.

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

Boarding was seamless, crew were great. Less disruptions on the night flight would have improved the experience and turning off lights earlier.

We loved our flight attendant (Emma, from Scotland), the meals were perfectly spaced out, and the in-flight entertainment was super generous and delightful.

Why don't they board from the back of the plane to the front. We have to move by all the people and their luggage to get to the seats.

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?

With three empty seats across the aisle from me I politely asked the crew if I could sit in one of those seats. They initially told me I couldn't do it for my safety. When I pressed them again they blamed the captain. So which was it? I didn't appreciate either nonsense explanation simply because they didn't want to honor my request.

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

Flight was great (only a short hop from London to Dublin). Wi-Fi available on board(around 2 euros), power sockets, complimentary water and biscuit. Landin/ takeoff all went without a flaw.

The issue wasn’t necessarily with British Airlines but was a reaction to their delayed flight from Miami to London on Aug 18. Due to the delay out of Miami, we missed our BA flight with Aer Linguis on the 19th from London to Cork, Ireland. The attendant in London was helpful and rebooked us for a flight later that same day ($120). However, she failed to mention that as a result of the missed flight, our returning flight was also cancelled and the rebooking cost was $451. Disappointed at the lack of communication between airlines and between the agent and the customer.

Lost bag on an hour and a half flight with no connections - ridiculous!

You lost my luggage on the trip to Dublin and again on the way back, still waiting on luggage.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Stansted
Luton
Wembley
Gatwick
Hounslow
Croydon
Ilford
Milton Keynes
Watford
Slough
Southend-on-Sea
Guildford
St. Albans
Ipswich
Maidstone
Hayes
Eastbourne
Richmond
Kingston upon Thames
Crawley

More options for your flight to London