£50 Cheap Flights from London (LHR) to Shannon (SNN)

Popular airlines from Heathrow Airport (LHR) to Shannon Airport (SNN)

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Cheap Flights from London (LHR) to Shannon (SNN)

Prices were available within the past 7 days and start at £50 for one-way flights and £101 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
British Airways

Find the cheapest month to fly from London (LHR) to Shannon (SNN)

March is typically the cheapest month to fly

From £75 - £169 per traveller.

Graph displaying average flight prices per month

Flight from London to Shannon route information
Origin airport
Heathrow
Destination airport
Shannon
Airlines serving
Aer Lingus, British Airways
Return price
£100
Distance
590 km
Average flight time
1 hour 28 mins

Compare flights from London to Shannon easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Shannon. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Shannon in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Shannon.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Shannon (SNN)

The easiest way to view the best deals on flights from London to Shannon today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Shannon start at just £101 and range up to £219.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Shannon
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Shannon flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Shannon for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to Shannon Airport?
If you're planning on travelling from Heathrow Airport (LHR) to SNN, round-trip flights start from £101. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Heathrow to Shannon Airport?
This differs between airlines, as each has its own set of terms and conditions. Head to the Customer Service Portal, where there are instructions on how to cancel your flight online.
How do I find cheap flights from Heathrow Airport to SNN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for LHR to Shannon Airport (SNN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from London Heathrow to Shannon Airport?
You might not get through a whole movie on this flight — it's just 590 kilometres from Hounslow to Shannon. Find your seat, buckle up and you'll be touching down before long.
Which airlines fly direct from Heathrow Airport to SNN?
A favourite with many travellers, Aer Lingus (EI) operates 82 flights every month from London Heathrow to Shannon Airport. Pick the one that fits with your travel plans and book your fare today.
Are Heathrow Airport (LHR) to SNN flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Heathrow Airport (LHR) to Shannon Airport (SNN) at the last minute could be your ticket to a fantastic deal. However, you might miss out on a flight altogether! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

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