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LHR - SNN

£138 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 10/5. 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
0 bags
Sun 26/5
Sun 2/6

Search 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
In the last 7 days, travellers have searched 44,738,066 times on KAYAK, and here's why:

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Cheap flight deals from Heathrow to Shannon (LHR-SNN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 and deals for you by selecting your travel dates.
Choose your dates
06:15 - 11:50LHR-SNN
5h 35m1 stop
07:10 - 18:35SNN-LHR
11h 25m1 stop
Thu, 23 May - Thu, 30 May
14:45 - 16:10LHR-SNN
1h 25mdirect
07:10 - 08:30SNN-LHR
25h 20m1 stop
Thu, 23 May - Thu, 30 May
06:15 - 11:50LHR-SNN
5h 35m1 stop
16:55 - 18:20SNN-LHR
1h 25mdirect
Thu, 23 May - Mon, 3 Jun
19:10 - 20:35LHR-SNN
1h 25mdirect
07:10 - 19:25SNN-LHR
12h 15m2 stops
£409Aer Lingus
Find Deal
Fri, 14 Jun - Sun, 16 Jun
14:45 - 16:10LHR-SNN
1h 25mdirect
07:10 - 21:35SNN-LHR
38h 25m2 stops
£422Aer Lingus
Find Deal
Thu, 16 May - Sun, 19 May
19:10 - 20:35LHR-SNN
1h 25mdirect
13:45 - 09:30SNN-LHR
19h 45m1 stop
£2,259British Airways
Find Deal
Tue, 23 Jul - Fri, 26 Jul
09:50 - 11:20LHR-SNN
1h 30mdirect
13:45 - 09:30SNN-LHR
19h 45m1 stop
£2,267British Airways
Find Deal
Tue, 14 May - Wed, 15 May
12:00 - 10:30LHR-SNN
22h 30m1 stop
12:30 - 08:20SNN-LHR
19h 50m1 stop
£12,479Lufthansa
Find Deal
Tue, 14 May - Wed, 15 May
13:05 - 07:30LHR-SNN
18h 25m1 stop
09:30 - 05:55SNN-LHR
20h 25m1 stop
£13,115United Airlines
Find Deal
Thu, 23 May - Thu, 30 May
13:05 - 07:30LHR-SNN
18h 25m1 stop
09:30 - 08:30SNN-LHR
23h 00m1 stop
£13,164United Airlines
Find Deal
Thu, 23 May - Thu, 30 May

Flights from Heathrow to Shannon - Travel Insights & Trends

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 flights from London Heathrow Airport to Shannon clicked on KAYAK for each day over the last 12 months.
When flying from London Heathrow Airport to Shannon, you should consider leaving on a Tuesday and avoid Wednesdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

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 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 £37 on average. On the other hand, the most expensive months are December and August, where the average cost of tickets is £92 and £67 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from London Heathrow Airport to Shannon, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 40 days before departure.

Which airlines provide the cheapest flights from London Heathrow Airport to Shannon?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting London Heathrow Airport to Shannon were found on Aer Lingus (£409) and British Airways (£2,259). British Airways proposed the cheapest one-way flight at £138.

Which airlines fly direct between London Heathrow Airport and Shannon?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from London Heathrow Airport to Shannon.
There is just one airline that flies from London Heathrow Airport to Shannon direct and that is Aer Lingus. The best one-way deal found from Aer Lingus for the route is £89.

How many flights are there between London Heathrow Airport and Shannon per day?

Each day, there are between 2 and 3 nonstop flights that take off from London Heathrow Airport and land in Shannon, with an average flight time of 1h 26m. The most common departure time is 09:00 and most flights take off in the afternoon. Each week, there are 20 flights. The most frequent day of departure is Thursday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between London Heathrow Airport and Shannon?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from London Heathrow Airport to Shannon take?

The average direct flight takes 1h 25m, covering a distance of 368 miles.

What’s the earliest departure time from London Heathrow Airport to Shannon?

Early birds can take the earliest flight from London Heathrow Airport at 09:50 and will be landing in Shannon at 11:20.

What’s the latest departure time from London Heathrow Airport to Shannon?

If you prefer to fly at night, the latest flight from London Heathrow Airport to Shannon jets off at 19:10 and lands at 20:35.

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

Low season

January

High season

August

Cheapest flight

£138
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (8% 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 £173 for a one-way ticket and £432 for a return.

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

    Virgin Atlantic, Air France, KLM, and Delta 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 £135 and an overall rating of 7.2, Aer Lingus is the most popular choice. British Airways is also a great choice for the route, with an average price of £199 and an overall rating of 6.8.

  • 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.

See more FAQs

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 £108 or less one-way and £143 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.
See more tips

Prefer to fly direct from London Heathrow Airport to Shannon?

Find which airlines fly direct from Heathrow to Shannon, 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
See more direct flights

Top 3 airlines serving 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.
7.2
Aer LingusOverall score based on 1350 reviews
7.1comfort
7.0entertainment
7.3boarding
6.6food
8.0crew
Airline reviews

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

10.0 ExcellentAnonymous, Apr 2024EWR - DUB
Read more about Aer Lingus reviews

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Flight staff very friendly and helpful where possible. Late flight and travelling with young child, cabin lights remained on for the duration of the flight which was a little disappointing considering the time of the flight. Overall very happy to travel with Aer Lingus.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

Both flights were delayed due to maintenance issues. Because they where late boarding all four of our bags where left behind on our last connecting flight.

Aer Lingus interior is not the cleanest. I've seen crumbs on the seat and wrappers on the floor when I boarded

Speakers were blaring. It's like being in a Moroccan market and you keep getting shouted at with what's for sale

We missed the flight due to very slow security control and lack of last call announcement. We only found out at the gate that the gate is closed. Altogether 14 or 15 people missed the flight FR4500 from Cologne to Dublin.

Everything went according to plan. Check in, boarding etc all were very efficient.

What can you say Ryanair get you there,no frills Not so cheap anymore ..... but what is now days! Would use again as always. Good flight times for us.

Very unpleasant staff, disgusting service, ignoring requests, refusal to help

Late again rude staff at gate bullying passengers made us stand in the cold 3degrees for 40 mins before they let us board

The usual average Ryanair flight, but we landed 20 min before due time, which was very good.

The flight boarded and departed Venice on time (more or less), the cabin crew were super friendly and efficient, the flight crew kept us informed of progress, and the flight arrived early in Dublin. All in all, this flight was as close to perfect as is possible to achieve. Well done, Ryanair. The fact that Ryanair aircraft arrive and depart from gates that are in the back of beyond in Dublin's Terminal 1 is a bummer - in terms of the length of the walk need on both ends of a return flight. But I suspect that this is not Ryanair's fault

Enjoyed our flight with Ryanair to Arrecife. Flight boarded pretty much on time, crew were welcoming and very good. Generally good for a frequent low cost flight, Seats could however have been more comfortable.

I wouldn't like to fly with them anymore, I don't like their service, you can hardly take carry-on luggage because they charge you for everything, you can't ask for a glass of water, and the flight attendant tells you that they don't have any, that you have to Paying 3 euros for a bottle of water horrible, I don't recommend it, and they don't have anything low cost, because the plane ticket may not be expensive but what they charge you later for the rest, the flight becomes more expensive, it's the only airline that I don't like it so far, and I traveled a lot.

We paid to have overhead carry-on baggage. When we got to the gate we were told that our carry on bags would need to be checked and go below because the flight was full. Notably we were nowhere near the last people to board and about 30 other passengers also had to check their carry-on bags. Other than that the flight was fine.

Very bad plain although I paid A business class ticket I was stuck in a stiff fixed seat without any entertainment or Wi Fi for 5 hours I will never ever book a flight on British airline.

Self check in Kiosk did not recognize that I had prepaid for my luggage. This caused a 40 minute delay even though I had my British Airways email receipt for the prepaid luggage.

Crew were very friendly and helpful. They explained to us in detail the delay in our takeoff due to the storm that rolled in from Belfast and did their best to make up the time. Always great to fly BA!

Staff were very helpful. The free WiFi for messages was also very useful to keep in touch

Crew was more interested on looking at their phones than welcoming passengers during boarding.

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Missed my flight to final destination because of delayed British Airways flight. Had to spend 12 hours in airport and $1500 for new plane tickets

The crew on board were all very pleasant and happy to help. The flight had the old business class seats. The departure board in the business lounge did not update and kept on saying ' gate open' but never said boarding. When I got nervous about the departure time and walked to the gate I was told off rudely for being late.

Offered vegetable curry when it was actually tofu which I don’t care for.

Book cheap flights from London to Shannon

Cheapest flights to Shannon from London found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Shannon found on KAYAK in the last 72 hours.
10/5Fri
directBritish Airways
1h 25mLHR-SNN
£138
10/5Fri
directBritish Airways
1h 25mLHR-SNN
£139
29/5Wed
1 stop
15h 05mLHR-SNN
£177
18/5Sat
1 stop
15h 15mLHR-SNN
£184
24/5Fri
directAer Lingus
1h 25mLHR-SNN
£190
1/5Wed
1 stop
15h 05mLHR-SNN
£202
8/5Wed
1 stop
22h 05mLHR-SNN
£222
18/6Tue
2 stopsAer Lingus
40h 15mLHR-SNN
£308
10/5Fri
1 stopLufthansa
26h 30mLHR-SNN
£2,671
21/7Sun
1 stopLufthansa
26h 30mLHR-SNN
£2,765

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Last minute flights from Heathrow to Shannon

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Shannon that are departing in the next 10 days.
28/4Sun
direct
1h 25mLHR-SNN
2/5Thu
multi-stop
12h 15mSNN-LHR
£528
27/4Sat
directBritish Airways
1h 25mLHR-SNN
29/4Mon
multi-stopBritish Airways
16h 05mSNN-LHR
£2,274
28/4Sun
multi-stop
26h 30mLHR-SNN
2/5Thu
multi-stop
26h 10mSNN-LHR
£3,812
27/4Sat
multi-stop
20h 30mLHR-SNN
29/4Mon
multi-stop
16h 05mSNN-LHR
£4,594
27/4Sat
multi-stopUnited Airlines
18h 30mLHR-SNN
29/4Mon
multi-stopUnited Airlines
17h 50mSNN-LHR
£13,244
27/4Sat
multi-stopUnited Airlines
18h 30mLHR-SNN
29/4Mon
multi-stopUnited Airlines
17h 50mSNN-LHR
£13,293

Search by stops

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London Heathrow Airport - Shannon Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Destination:

Shannon (SNN)Ireland

Return flight deals:

Shannon - London Heathrow Airport

Cabin classes:

£1,933
£310
£105

Browse destinations: