LHR - SNN

£46 Find Cheap Flights from London Heathrow Airport to Shannon – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£92
Typical prices: £123-£186
Aer Lingus
Wed 7/11Mon 26/11
LHR - SNN • Direct
Cheapest one-way flight
£46
Typical prices: £78-£124
Aer Lingus
Fri 23/11
LHR - SNN • Direct
Direct flights
You can fly direct with Aer Lingus. Average duration is 1h 28m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travellers who book at least 13 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Shannon!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Heathrow to Shannon (LHR-SNN)

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

Recent return flight deals from Heathrow to Shannon

Wed, 4 Nov - Wed, 11 Nov
Aer Lingus Logo
18:05 - 19:25LHR  London Heathrow-SNN Shannon
1h 20mdirect
Aer Lingus Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£92Aer Lingus
Thu, 19 Nov - Thu, 26 Nov
Aer Lingus Logo
15:15 - 16:45LHR  London Heathrow-SNN Shannon
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£92Aer Lingus
Sat, 7 Nov - Fri, 13 Nov
Aer Lingus Logo
14:15 - 15:45LHR  London Heathrow-SNN Shannon
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£92Aer Lingus
Sat, 7 Nov - Thu, 26 Nov
Aer Lingus Logo
14:15 - 15:45LHR  London Heathrow-SNN Shannon
1h 30mdirect
Aer Lingus Logo
17:30 - 18:55SNN  Shannon-LHR London Heathrow
1h 25mdirect
£92Aer Lingus
Tue, 10 Nov - Thu, 19 Nov
Aer Lingus Logo
15:15 - 16:45LHR  London Heathrow-SNN Shannon
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£93Aer Lingus
Thu, 5 Nov - Thu, 26 Nov
Aer Lingus Logo
15:15 - 16:45LHR  London Heathrow-SNN Shannon
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£93Aer Lingus
Mon, 2 Nov - Mon, 9 Nov
Aer Lingus Logo
18:05 - 19:25LHR  London Heathrow-SNN Shannon
1h 20mdirect
Aer Lingus Logo
17:30 - 18:55SNN  Shannon-LHR London Heathrow
1h 25mdirect
£93Aer Lingus
Wed, 18 Nov - Wed, 25 Nov
Aer Lingus Logo
18:05 - 19:25LHR  London Heathrow-SNN Shannon
1h 20mdirect
Aer Lingus Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£93Aer Lingus
Wed, 4 Nov - Wed, 11 Nov
Multiple Airlines Logo
15:15 - 16:45LHR  London Heathrow-SNN Shannon
1h 30mdirect
Multiple Airlines Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£103Multiple Airlines
Fri, 6 Nov - Sun, 8 Nov
Multiple Airlines Logo
18:05 - 19:25LHR  London Heathrow-SNN Shannon
1h 20mdirect
Multiple Airlines Logo
20:05 - 21:25SNN  Shannon-LHR London Heathrow
1h 20mdirect
£103Multiple Airlines
Booking Insights

Price, demand, and travel trends for London Heathrow Airport to Shannon flights

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

How much is a return flight from London Heathrow Airport to Shannon?

Return flights from London Heathrow Airport to Shannon typically range from £123 to £186. The lowest price found in the past 5 days was £92 on Aer Lingus.

What's the cheapest day of the week to fly from London Heathrow Airport to Shannon?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from London Heathrow Airport to Shannon. It’s 19% cheaper than the average day, while Sunday is the most expensive, with prices 15% higher.

What is the cheapest month to fly from London Heathrow Airport to Shannon?

•January is the cheapest month to fly from London Heathrow Airport to Shannon at £123 return.
•December (£170) and May (£166) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 38% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from London Heathrow Airport to Shannon the cheapest?

Flights from London Heathrow Airport to Shannon are cheapest 13 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Heathrow to Shannon

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Key details for London Heathrow Airport to Shannon flights

Low season

January

Cheapest flight

£46
Beat the crowds with an average 45% drop in traveller numbers.
One-way flight from London Heathrow Airport to Shannon

When to book flights from Heathrow to Shannon

Are your dates flexible? Find out the best times to travel from Heathrow to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Heathrow Airport to Shannon flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from London Heathrow Airport to Shannon?

    These are the earliest and latest flight times available from London Heathrow Airport to Shannon:

    • Earliest: departs at 09:50 and lands at 11:18
    • Latest: departs at 19:10 and lands at 20:38.

    The flight takes about 1h 28m.

  • Which cabin classes can I book on flights from London Heathrow Airport to Shannon?

    Only Economy class is available on flights from London Heathrow Airport to Shannon.

  • How long is a flight from London Heathrow Airport to Shannon?

    A direct flight from London Heathrow Airport to Shannon takes 1h 28m, covering 368 miles.

  • Do I need a passport to fly from London Heathrow Airport to Shannon?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London Heathrow Airport to Shannon flight?

    Return flights from London Heathrow Airport to Shannon range from £123 to £186, with an average of £149 over the past 12 months. Anything below £123 counts as a good deal.

  • How expensive are last-minute London Heathrow Airport to Shannon flights?

    Last-minute fares on this route (booked within two weeks of departure) run 24% above the £149 route average. Book 13 weeks before departure for the lowest fares.

  • What is the standard checked bag allowance on flights from London Heathrow Airport to Shannon?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £17–£76 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from London Heathrow Airport to Shannon?

    The Airbus A321neo family is used most often on this route, operated mainly by Aer Lingus and British Airways. Other aircraft seen on the route include Airbus A320neo variants.

  • How are flight departures from London Heathrow Airport to Shannon spread across the day?

    Morning is the busiest departure period on London Heathrow Airport to Shannon flights, with 34% leaving in that window. Afternoon departures account for 33%, Evening flights for 33%, and Night flights for 0%.

  • How are flight prices from London Heathrow Airport to Shannon looking right now?

    One-way fares from London Heathrow Airport to Shannon are currently lower than usual. Average one-way flight prices are about £55, which is 42% below the typical average for this route.

  • Which car hire options are available at Shannon Airport (SNN)?

    Shannon Airport (SNN) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:

    • Budget
    • Sixt
    • Europcar
    • Easirent
    • Thrifty

  • Which airports can I use when flying from London Heathrow Airport to Shannon?

    Flights from London Heathrow Airport to Shannon usually depart from London Heathrow (LHR) and arrive at Shannon (SNN).

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Shannon?

    Yes. Flexible dates can save you up to 30% on flights from London Heathrow Airport to Shannon. Tuesday is the cheapest departure day at £121 return on average, while Sunday is the most expensive at £173, a difference of £51.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from London Heathrow Airport to Shannon?

    Only Aer Lingus operates flights between London Heathrow Airport and Shannon.

  • Which airlines offer extra legroom and free seat selection on London Heathrow Airport to Shannon flights?

    Among airlines operating London Heathrow Airport to Shannon flights:

    • Aer Lingus: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on London Heathrow Airport to Shannon flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aer Lingus: a cabin bag and a checked bag in Economy class
    • British Airways: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

  • Can I find direct flights from London airports to Shannon Airport?

    Yes, you can fly direct from three airports in London to Shannon. With London Heathrow Airport, London Gatwick Airport, and London Stansted Airport offering regular flights with airlines such as Ryanair and Aer Lingus, you’ll be at your destination in no time at all.

  • Can I fast-track at London airports?

    To make sure you aren’t in a rush at the airport, you can get a fast track to ensure you fly through security. For around £12.50 at Heathrow Airport, or £5 Gatwick and Stansted, you can ensure that you are not held up by queues. All you need to do is book 24h in advance and show your QR code on arrival during the time slot you are given.

  • Are there currency exchange bureaus available upon arrival at Shannon Airport?

    Shannon Airport has a range of currency exchange options for you when you land in Ireland. You can either use the ATMs located in the arrivals hall to withdraw Euros for your trip, or you can visit the International Currency Exchange office in the customs hall of the airport to exchange your Pounds Sterling for Euros.

  • How can I get from Shannon Airport to Shannon?

    You can get a bus from the airport to the city centre, which will take you about 10min and cost about €2.40 (£2.10). You should get on the 343 bus towards Limerick, which can be found just in front of the airport. You can also walk the distance in about 1h, should your bags not be too heavy.

Your guide to booking London Heathrow Airport to Shannon flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average £121, about £51 less than Sunday fares (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 32% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to Shannon trip for January. Fares historically average £123 return in that month – typically £47 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Shannon Airport.

    • Park Inn by Radisson Shannon Airport
    • Treacys Oakwood Hotel, Shannon
    • Carrygerry Country House
  • There are 3 airports that offer direct flights from London to Shannon Airport. If you fly from Heathrow Airport, you have easy access from the city centre, whereas Stansted Airport is good for those in north London and Gatwick is good for those in the south of the city.
  • From Shannon Airport, not only are you in a great position to see Shannon itself, but you are also well positioned to see other places too. Limerick is about 25min away by car, whilst Galway is around a 1h drive away.
  • Ahead of your flight from London, you can relax at one of the lounges at London Airports. At London Heathrow and London Gatwick, you can pay about £25 to use a lounge like Aspire Lounge, which offers complimentary food and drinks as well as Wi-Fi. Similarly, at Stansted, you can get these facilities at Escape Lounge for about £20.
  • Make sure you have exchanged your currency ahead of your flight to Shannon, so you can get going as soon as you land. At Heathrow Terminals 2, 3, and 4 you can use a Travelex desk, and at Terminal 5 there is a Moneycorp. For those flying direct from Gatwick or Stansted Airport, you can use an International Currency Exchange bureau. These are located prominently in the departure areas, so you won't find them hard to locate.
  • On arrival at Shannon Airport, you can catch up with all the latest news, video calls to your family and friends, and check your emails by using the free Wi-Fi on offer at the airport.

Prefer to fly direct from London Heathrow Airport to Shannon?

 
Find which airlines fly direct from London Heathrow Airport to Shannon Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Shannon

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

Shannon to London Heathrow

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

More options for your flight from Heathrow to Shannon

Complete your trip to Shannon with a hotel stay or car hire