LHR - SNN

£49 Find Cheap Flights from London Heathrow Airport to Shannon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Shannon departing on 19/5. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Shannon, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£94
Typical prices: £182-£114
Aer Lingus
Tue 26/5Thu 28/5
LHR - SNN • Direct
Cheapest one-way flight
£49
Typical prices: £71-£125
Aer Lingus
Tue 19/5
LHR - SNN • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
BA's Euro Traveller includes a carry-on bag.
Aer Lingus offers 17” wide seats with 30” pitch.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
Every day
You can fly direct with Aer Lingus. Average duration is 1h 28m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 14% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Shannon!
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Flight Deals

Cheap Flights from Heathrow to Shannon (LHR-SNN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Shannon 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 from Heathrow to Shannon

Tue, 26 May - Thu, 28 May
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£94Aer Lingus
Tue, 26 May - Tue, 9 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£95Aer Lingus
Tue, 26 May - Sun, 31 May
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£112Aer Lingus
Tue, 19 May - Sat, 23 May
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
17:25 - 18:55
SNN
-
LHR
1h 30mdirect
£112Aer Lingus
Mon, 1 Jun - Mon, 8 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£114Aer Lingus
Thu, 28 May - Sun, 7 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£116Aer Lingus
Fri, 29 May - Mon, 1 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£117Aer Lingus
Fri, 29 May - Mon, 1 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£117Aer Lingus
Fri, 29 May - Mon, 1 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£118Aer Lingus
Fri, 19 Jun - Sun, 21 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£119Aer Lingus
Booking Insights

KAYAK’s insights & trends for Heathrow to Shannon flights

Get data-powered insights and trends into flights from Heathrow to Shannon to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Shannon, Clare departing in May.

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

The average price of all round-trip flights from London Heathrow Airport to Shannon clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Shannon on a Friday and more expensive on a Sunday. On your return trip to London Heathrow Airport, you should consider flying back on a Thursday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Shannon, 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 from London Heathrow Airport to Shannon is February, where tickets cost £117 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £151 and £150 respectively.

How far in advance should I book a flight from London Heathrow Airport to Shannon?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Shannon, 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 on the flight from London Heathrow Airport to Shannon, you should book around 2 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

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Expert advice

Expert advice for your flight from Heathrow to Shannon

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

Read more
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.

Read more

Good to know - Cheap tickets from London Heathrow Airport to Shannon

Low seasonJanuary
Cheapest flight£49
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (10% more expensive on average)
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
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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Shannon flights

  • 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.

  • What is the cheapest flight from London Heathrow Airport to Shannon?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Shannon was £49 for a one-way ticket and £94 for a return.

  • Which airlines offer Wi-Fi service onboard planes from London Heathrow Airport to Shannon?

    KLM, Air France, and Virgin Atlantic offer inflight Wi-Fi service on the London Heathrow Airport to Shannon flight route.

  • Which aircraft models fly most regularly from London Heathrow Airport to Shannon?

    The Airbus A321neo is the aircraft model that flies most regularly on the London Heathrow Airport to Shannon flight route.

  • On which days can I fly direct from London Heathrow Airport to Shannon?

    There are direct flights from London Heathrow Airport to Shannon on a daily basis.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Shannon?

    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 from London Heathrow Airport to Shannon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Shannon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Shannon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Shannon with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Shannon?

    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 Shannon from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London Heathrow Airport to Shannon

  • Looking for a cheap flight from Shannon to London Heathrow Airport? 25% of our users found flights on this route for £85 or less one-way and £133 or less round-trip.
  • 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?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow 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

Reviews of the top airline flying from Heathrow to Shannon

 
See real verified KAYAK customer reviews for airlines flying from London to Shannon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Shannon? 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 1543 reviews
7.0Entertainment
7.4Boarding
6.6Food
7.2Comfort
8.1Crew
Airline reviews

Crew was friendly and seats were comfortable. The connection however there were no free snacks or drinks.

8.0 ExcellentMichelle, May 2026
EWR - DUB
Read more Aer Lingus reviews

Crew was friendly and seats were comfortable. The connection however there were no free snacks or drinks.

Our flight from Dublin to Coruna did not exist any more. Apparently it was cancelled in February and I was not advised, nor was I offered any flights for rebooking. Happily Aer Lingus found another flight to another city in Spain that was 500 miles from Coruna; I had to pay for a hotel overnight and a revise my rental car that incurred additional costs, and I did not get to Coruna for another 24 hours. I was not at all impressed with Kayak or Chatdeal or Hertz.

Satin first class and absolutely no snacks are offered. Surface was awful.

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Poor. Plane left EWR late hence missed connecting flight in Dublin. No pro active info from flight staff on connection, only when probed a couple of lies on where we would dock, and on lilelyhood catching connecting flight. Lies as they will have known our EWR-DUB would be parked furthest away from the transit spit - lying it would be next to the AMS flight.

The seat area was way too compact. The person in front reclined, and the TV screen was right in my face. There was a metal box secured to the floor in my foot area, further limiting space. Food was OK. The last service was provided too late in the flight, so the crew was rushing at the end. The ticket counter in the Naples airport was extremely slow. The staff on the flight was friendly.

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

I heard that the pilots were actually leprechauns, but I was not able to confirm. Can you please provide documentation if this is true?

The check in process at the front desk felt slow and it was frustrating that we could not check in online. Everything about the actual flight was great, including very kind flight attendants and a nice larger bathroom. Only thing is that it was very cold in the plane!

I flew economy class. Seats were very good and the crew was excellent

Everything you need to know for your flight from Heathrow to Shannon

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Shannon (SNN)