€21 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 16/11. 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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Flight 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

Sat, 15 Nov - Mon, 17 Nov
Ryanair Logo
20:00 - 21:25ORK-STN
1h 25mdirect
Ryanair Logo
06:00 - 07:25STN-ORK
1h 25mdirect
€33Ryanair
Find Deal
Fri, 31 Oct - Sun, 2 Nov
Ryanair Logo
22:20 - 23:45ORK-STN
1h 25mdirect
Ryanair Logo
05:50 - 07:15STN-ORK
1h 25mdirect
€35Ryanair
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Ryanair Logo
07:45 - 09:10ORK-STN
1h 25mdirect
Ryanair Logo
05:55 - 07:20STN-ORK
1h 25mdirect
€35Ryanair
Find Deal
Fri, 28 Nov - Mon, 1 Dec
Multiple Airlines Logo
22:00 - 23:20DUB-STN
1h 20mdirect
Multiple Airlines Logo
06:30 - 07:50STN-DUB
1h 20mdirect
€42Multiple Airlines
Find Deal
Sun, 16 Nov - Mon, 17 Nov
Multiple Airlines Logo
06:30 - 07:50DUB-STN
1h 20mdirect
Multiple Airlines Logo
06:30 - 07:50STN-DUB
1h 20mdirect
€47Multiple Airlines
Find Deal
Sat, 1 Nov - Mon, 3 Nov
Ryanair Logo
15:15 - 16:35DUB-STN
1h 20mdirect
Ryanair Logo
06:30 - 07:50STN-DUB
1h 20mdirect
€54Ryanair
Find Deal
Sat, 8 Nov - Wed, 26 Nov
British Airways Logo
17:55 - 19:15DUB-LHR
1h 20mdirect
British Airways Logo
15:30 - 17:00LHR-DUB
1h 30mdirect
€75British Airways
Find Deal
Mon, 10 Nov - Mon, 17 Nov
Aer Lingus Logo
20:05 - 21:25SNN-LHR
1h 20mdirect
Aer Lingus Logo
10:00 - 11:30LHR-SNN
1h 30mdirect
€85Aer Lingus
Find Deal
Thu, 30 Oct - Sat, 1 Nov
British Airways Logo
20:40 - 22:00DUB-LHR
1h 20mdirect
British Airways Logo
13:35 - 15:05LHR-DUB
1h 30mdirect
€86British Airways
Find Deal
Tue, 4 Nov - Tue, 11 Nov
Aer Lingus Logo
20:05 - 21:25SNN-LHR
1h 20mdirect
Aer Lingus Logo
15:15 - 16:45LHR-SNN
1h 30mdirect
€88Aer Lingus
Find Deal

Everything you should know

Top airlines
Ryanair
Most flights • 257 per week
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DUB-LON
Cheapest
ORK-LON
Most popular
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 34% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
€33
Overall average: €89
Ryanair
Sat 15/11Mon 17/11
ORK - STN • Direct
Cheapest one-way flight
€21
Typical prices: €33-€84
Ryanair
Sun 16/11
DUB - LGW • Direct
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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 London!
Booking Insights

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.

If travelling to London, the cheapest city to fly from in the last 3 days was Dublin, with flights as low as €24 one-way and €38 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 round-trip flights to London from each origin found by users searching on KAYAK in the last month.

On average, a flight to London costs €257. The cheapest price found on KAYAK in the last 2 weeks cost €50 and departed from Dublin. The most popular routes on KAYAK are Dublin to London which costs €258 on average, and Knock to London, which costs €220 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 May, where tickets cost €27 on average for one-way flights. On the other hand, the most expensive months are September and August, where the average cost of tickets from Ireland is €214 and €202 respectively. For return trips, the best month to travel is January with an average price of €64.

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 Cork €85 one-way - €490 return, from Dublin €97 one-way - €133 return, from Shannon €104 one-way - €193 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 66 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 Stansted Airport, with an average flight price of €69.

Good to know – Book Cheap London Plane Tickets

Low seasonFebruary
Cheapest flight€21
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flight from Dublin 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?

    If travelling to London, the cheapest city to fly from in the last 3 days was Dublin, with flights as low as €24 one-way and €38 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 €257. The cheapest price found on KAYAK in the last 2 weeks cost €50 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 tickets can be as cheap as €449. On the other hand, the most expensive day to fly is Sunday, where prices are €668 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 flights cost €191 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 €776.

Top tips for finding cheap flights to London

  • Looking for a cheap flight? 25% of our users found flights on this route for €96 or less one-way and €214 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?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop 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, +118 more

ANA, AccesRail, +119 more

Tuesday

ANA, AccesRail, Aegean Airlines, +114 more

ANA, AccesRail, +115 more

Wednesday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Thursday

ANA, AccesRail, Aegean Airlines, +117 more

ANA, AccesRail, +118 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +117 more

ANA, AccesRail, +118 more

Sunday

ANA, AccesRail, Aegean Airlines, +129 more

ANA, AccesRail, +130 more

See more direct flights

Direct returns

London to Ireland

Monday

ANA, AccesRail, Aegean Airlines, +118 more

ANA, AccesRail, +119 more

Tuesday

ANA, AccesRail, Aegean Airlines, +114 more

ANA, AccesRail, +115 more

Wednesday

ANA, AccesRail, Aegean Airlines, +120 more

ANA, AccesRail, +121 more

Thursday

ANA, AccesRail, Aegean Airlines, +117 more

ANA, AccesRail, +118 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +117 more

ANA, AccesRail, +118 more

Sunday

ANA, AccesRail, Aegean Airlines, +129 more

ANA, AccesRail, +130 more

See more direct flights

Reviews of the 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 1336 reviews
6.5Food
7.4Boarding
7.1Comfort
6.9Entertainment
8.0Crew
Airline reviews

The seats needs to be comfortables, at least please add more padding to the seats.

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

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

They out me in the baby row so I was surrounded by toddlers, they also did not send my luggage and was not able to book my connecting flight

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

There was a mixup with our tickets. They said they did not receive payment for them but yet we had seat assignments. We had to purchase last-minute tickets which cost us three times as much. that’s why they got a rated of a one.

Terrible. So upset either way this flight. We scrambled to make it as it was delayed an hour.

Good but could be better for comfort and entertainment aspect

Overall it was not a pleasant experience, I was given the middle seat even though I asked for a change they didn’t honor

No WiFi working on either flight. No leg room at all, the seat in front of me left dents in my knees. If I put the tray down, it was so low it was propped up by my knees. (I’m only 182.9 cm) I’m usually cool on planes, but the planes were both hot during taxi and take-off.

Very bad.i will never book British flights for future

Moved me away from my family and refused to fix it.

I noticed the crew was so much nicer and friendlier. It would be nice if British Airways would serve soft drinks during the flight

Must have had an elderly tour on the trip. Plane boarded via tarmac and had both front and tail stairway access. We waited about ten minutes at the rear entrance while elderly folks entered the forward access and walked all the way back to last rows of the aircraft! We could not access the row until every one of them finally reached the final rows. There should have been an agent directing folks Forward and Aft based on seat row. It was comical.

The airport experience at check-in, just to drop a bag, was horrible. The were two agents working, two watching. We stood in line for just short of one hour. I asked the agent if this were normal and he said, "Well, yes. Just two computer terminals." No apologies. BA needs to fix this ASAP. Meanwhile, I've moved BA to the very bottom of my booking list.

Good shuttle to Europe. Face check boarding needs overhaul. 2 stations for 200 people and still with passport check. Why have both? Why is this now slower than 5 years ago?

Tickets get checked 4 separate times by different staff, would save time if only the person at the entrance and the person who scans the tickets checks them!

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
Wembley
Gatwick
Milton Keynes
Hounslow
Richmond
Watford
Ilford
Croydon
Guildford
Eastbourne
Slough
Worthing
Maidstone
Harrow
High Wycombe
Maidenhead
Southend-on-Sea
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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