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Cheap Flights from Shannon to London Heathrow

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Compare Shannon to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Shannon to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Shannon to London Heathrow? Find the lowest prices on one-way and return tickets right here.
London.ر.ق.‏ 195 per passenger.Departing Thu, 6 Mar.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Thu, 6 Mar, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 195, select.
London.ر.ق.‏ 208 per passenger.Departing Sun, 18 May.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Sun, 18 May, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 208, select.
London.ر.ق.‏ 212 per passenger.Departing Tue, 1 Apr.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Tue, 1 Apr, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 212, select.
London.ر.ق.‏ 239 per passenger.Departing Tue, 3 Jun.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Tue, 3 Jun, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 239, select.
London.ر.ق.‏ 307 per passenger.Departing Fri, 8 Aug.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Fri, 8 Aug, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 307, select.
London.ر.ق.‏ 308 per passenger.Departing Fri, 28 Feb.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Fri, 28 Feb, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 308, select.
London.ر.ق.‏ 308 per passenger.Departing Mon, 1 Sep.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Mon, 1 Sep, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 308, select.
London.ر.ق.‏ 308 per passenger.Departing Wed, 2 Jul.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Shannon on Wed, 2 Jul, arriving in London Heathrow.Price includes taxes and charges.From ر.ق.‏ 308, select.

Find the cheapest month to fly from Shannon to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Shannon to London Heathrow flights are currently cheapest in March.
Feb
from ر.ق.‏ 308
Mar
from ر.ق.‏ 195
Apr
from ر.ق.‏ 212
May
from ر.ق.‏ 208
Jun
from ر.ق.‏ 239
Jul
from ر.ق.‏ 308
Aug
from ر.ق.‏ 307
Sep
from ر.ق.‏ 308
Oct
from ر.ق.‏ 308
Nov
from ر.ق.‏ 308
Dec
from ر.ق.‏ 308
Jan
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Direct flights from Shannon to London Heathrow

Shannon to London Heathrow: Alternative routes

Compare routes from Shannon to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Shannon to London: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 195
Cheapest month to flyMarch
Average flight time1 hr, 26 mins
Most popular airlineAer Lingus
Average flights per week83

Finding cheap flights from Shannon to London Heathrow: Frequently asked questions

The best price we found for a return flight from Shannon to London Heathrow is ر.ق.‏ 424. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 26 minutes is the average flight time from Shannon to London Heathrow.
Aer Lingus, British Airways and Qatar Airways fly direct from Shannon to London Heathrow.
As of February 2025, there are 83 flights per week flying from Shannon to London Heathrow.
The cheapest month to fly from Shannon to London Heathrow is usually February 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Shannon Airport to London Heathrow Airport on Saturday, 22 March 2025.
Yes – the average flight time is 1 hour and 26 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Aer Lingus offers the cheapest flight tickets to London Heathrow.

Travelling from Shannon Airport (SNN) to London Heathrow Airport (LHR): what you need to know

  • Expect to be in the skies for 1 hour 23 minutes. On average, that's the duration of a direct flight from Shannon Airport to London Heathrow Airport. London and Shannon have the same timezone — UTC+0.

  • Each week, there are 28 flights from Shannon Airport to London Heathrow Airport. To take off as soon as possible, go for the 07:40 Aer Lingus flight. If you'd rather make the most of your day before flying, the last departure from SNN to LHR is 21:25 with Aer Lingus.

  • You can expect bigger queues during popular months such as August and other peak seasons. Arriving up to fours hours ahead of an international flight and two hours for domestic departures will help ensure a smooth travel experience.

  • Getting to London (and then exploring more of United Kingdom!) is simple with Aer Lingus. This popular carrier offers direct flights from Shannon Airport to London Heathrow Airport.

  • If you'd like to break up your flight from Shannon Airport to London Heathrow Airport, add a stopover to your trip. Simply uncheck 'Direct flights only' and find a destination that interests you. Popular stopovers on the SNN - LHR route include:

    • Edinburgh Airport

    • Manchester Airport

    • Charles de Gaulle Airport

  • Before booking your cheap ticket from SNN to LHR, check whether you need a visa to enter United Kingdom. Travel document and visa requirements can vary and are updated frequently. For the latest information, contact the nearest embassy or consulate of the country you're flying to.

How to find the cheapest flights from Shannon Airport (SNN) to London Heathrow Airport (LHR)

  • The best price we've seen for a one-way ticket from Shannon Airport to London Heathrow Airport is ر.ق.‏ 195. The cheapest price for a return flight is ر.ق.‏ 424. Remember that fares may change due to availability at the time of booking.

  • To get cheap flight tickets from SNN to LHR, book your journey 9 months ahead of your departure.

  • May is the cheapest month for flight tickets from Shannon Airport to London Heathrow Airport. If you want to travel at a different time of year, the 'Whole month' tool will give you the lowest airfares across every month.

  • Getting a cheap ticket from SNN to LHR is straightforward with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Use filters to tailor your flights from Shannon Airport to London Heathrow Airport. Pick your preferred departure and arrival times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to find the best deals.

Handy information about Shannon Airport (SNN)

  • Located around 5 kilometres from central Shannon, Shannon Airport can be reached in approximately 7 minutes by car (depending on traffic). The same journey by public transport takes roughly 10 minutes.

  • Have an early flight from Shannon Airport to London Heathrow Airport? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by choosing one of these stays close to SNN:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • From London Heathrow Airport, London is approximately 31 kilometres away. It takes around 57 minutes to get to the centre driving.

  • If you're taking public transport, expect a journey of around 1 hour and 1 minute.

When to fly to London Heathrow Airport (LHR)

  • The quietest month for a flight from Shannon Airport to London Heathrow Airport is February, while July is the busiest. Pick the ideal time to go to London based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When reserving your flight from Shannon Airport to London Heathrow Airport, think about the type of weather you enjoy. July is the warmest month in London, with the temperature ranging from 11 ºC to 26 ºC.

  • Search for cheap flight tickets from SNN to LHR in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 0 ºC and 9 ºC on average.

More about London

Complete your London trip with hotels and a car rental

  • We don't just compare flights. Once you've booked your cheap ticket to London Heathrow Airport, browse our great car rental deals that'll give you the flexibility to travel around at your own pace. Then, take a look at our exclusive rates for hotels to find your perfect London stay.

Plan the rest of your trip from Shannon to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.