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 15/7. 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 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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Flights 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, 29 Jul - Thu, 31 Jul
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
07:40 - 09:05SNN-LHR
1h 25mdirect
£97Aer Lingus
Find Deal
Wed, 23 Jul - Tue, 29 Jul
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
£111Aer Lingus
Find Deal
Tue, 19 Aug - Thu, 28 Aug
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
£113Aer Lingus
Find Deal
Wed, 23 Jul - Tue, 29 Jul
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
£114Aer Lingus
Find Deal
Mon, 28 Jul - Thu, 31 Jul
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
07:40 - 09:05SNN-LHR
1h 25mdirect
£116Aer Lingus
Find Deal
Tue, 22 Jul - Tue, 22 Jul
Aer Lingus Logo
14:40 - 16:10LHR-SNN
1h 30mdirect
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
£117Aer Lingus
Find Deal
Mon, 28 Jul - Thu, 31 Jul
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
£118Aer Lingus
Find Deal
Mon, 28 Jul - Thu, 31 Jul
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
07:40 - 09:05SNN-LHR
1h 25mdirect
£120Aer Lingus
Find Deal
Wed, 8 Oct - Thu, 16 Oct
 Logo
06:55 - 13:55LHR-SNN
7h 00m1 stop
 Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
Wed, 8 Oct - Thu, 16 Oct
 Logo
06:55 - 13:55LHR-SNN
7h 00m1 stop
 Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
Expert advice

Expert advice for your flight from Heathrow to Shannon

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Aer Lingus

Aer Lingus offers 17” wide seats with 30” pitch on short-haul flights.


Aer Lingus AerSpace fare provides front-row seating with blocked middle seats for extra comfort.

British Airways

BA offers 31-inch legroom on most planes, ensuring comfort for short-haul flights.


BA's Euro Traveller fares include a carry-on bag, unlike many budget carriers.

Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa Garcia

Marisa Garcia

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
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

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
Useful Info

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.

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 Tuesday. On your return trip to London Heathrow Airport, you should consider flying back on a Sunday, and avoid Tuesdays 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 January, where tickets cost £88 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £164 and £149 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. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.


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

Low seasonJanuary
High seasonAugust
Cheapest flight£49
Best time to beat the crowds (32% less expensive on average)
Most popular time to fly (12% 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 £66 for a one-way ticket and £132 for a return.

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

    Virgin Atlantic, KLM, and Air France 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.

  • Which airline alliances offer flights from London Heathrow Airport to Shannon?

    oneworld, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Shannon, with oneworld being the most commonly used for this 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.

  • Which is the best airline for flights from London to Shannon, Aer Lingus or British Airways?

    The two airlines most popular with KAYAK users for flights from London to Shannon are Aer Lingus and British Airways. With an average price for the route of £133 and an overall rating of 7.1, Aer Lingus is the most popular choice. British Airways is also a great choice for the route, with an average price of £218 and an overall rating of 6.6.

  • 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 £294 or less one-way and £142 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, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Thursday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Friday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Saturday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Sunday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

See more direct flights

Direct returns

Shannon to London Heathrow

Monday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Thursday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Friday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Saturday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Sunday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

See more direct flights

Reviews of the top airlines 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.
7.1
Aer LingusOverall score based on 1151 reviews
7.0Comfort
6.8Entertainment
7.2Boarding
8.0Crew
6.4Food
Airline reviews

The Nice airport was a horrible boarding experience. I have never experienced the kind of compressed mob (in the B12-B17 gate area) of people all unclear what was happening and no airport staff to assist. There was no signage and 1000’s of people waiting for any info for 2 hours.

2.0 MediocreTim, Jul 2025NCE - DUB
Read more Aer Lingus reviews

The Nice airport was a horrible boarding experience. I have never experienced the kind of compressed mob (in the B12-B17 gate area) of people all unclear what was happening and no airport staff to assist. There was no signage and 1000’s of people waiting for any info for 2 hours.

The food was mediocre, the coffee was terrible. The entertaining selection was plentiful. They lost my checked luggage which put a damper on my 10-day vacation.

Weeeeeeell, you folks know economy class on Airbuses well--you're packed in like sardines. We may actually spring for more expensive seats next time, with a little room to stretch out. NO room to stretch out in Airbus economy class! :-) Apart from this, the food was decent (considering that it's mass-produced, and has severe spatial restrictions of its own), the staff were friendly enough, and there was a wide selection of movies, etc. to watch. Overall, I'd tend to use the word "adequate" rather than "exceptional" for my experience. But really, how could it be otherwise?

Excellent service, full flight but all went well ; slightly delayed start at Faro but arrived in Cork on time.

The ease of boarding was good. I wish they had something to eat on the plane.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. The check in desk wasn’t even opened on time (3 hours prior to departure) and there was no communication about when it would open or why there was a delay. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

Seats were less comfortable and tight from Newark to Dublin, than my second flight ( small segment from Dublin to Lyon). Movie audio was with frying sound overall. Yet the worst was as follows: one male, (dark hair , glasses on) from the crew member was so cold and rough, while I remained with constancy polite and kind. Per exple with the noise level I could not hear him at first for beverages, he rolled his eyes at the third times I finally heard him. From the start, loading my small hand bags , he directly spoke to me and said “ I had to keep my shopping bad by my seat, under , while there was sufficient room and I was among the last to sit. I show him the space , his face was always dull, stoic, not welcoming as the usual crew members from any airline companies are. When I think of my experience I liard w Aer Lingus, this is the image that gets back to me. Needless to say that as a passenger and client, I felt belittled since all this happened in front of the surrendering passengers. It s an affront and not a pleasant feeling especially when being traveling which oftentimes involves stress with carrying, and making it on time. I m not happy with the experience I had to be honest and I fly four times a year. Thank you for allowing me to share this statement with your company.

Really helpful staff at the airport and the flight was comfortable with good entertainment options and food service

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. At the expected boarding time, we were told we would be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

Cancelled flight, limited information and chaotic rebooking and accommodation provision. Apathetic crew who were more interested in taking about their layover plans than remembering passengers orders and actually bringing them (after 3 reminders). To top it off, priority baggage checked in at The Wing (LHR’s first class checkin) was delivered last to the baggage belt.

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

Only for BA because we had to get to Edinburgh at a certain time. Baggage lost, late boarding with only one person checking, again, our passports and boarding passes until the despatch controller had to step in to get us away. Will never fly BA again.

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

They lost my luggage. Lady who was helping with it in Austin was rude. Not very helpful!

Waited 3.25 hours in plane only to have the flight cancelled.

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

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