£47 Find Cheap Flights from London Heathrow Airport to Limerick – Compare and Save

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 Limerick departing on 17/9. 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

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Everything you should know

Cheapest return fare
£74
Typical prices: £99-£153
Aer Lingus
Wed 9/9Mon 28/9
LHR - SNN • Direct
Cheapest one-way flight
£47
Typical prices: £77-£120
Aer Lingus
Thu 17/9
LHR - SNN • Direct
Arrival airport
You can’t fly directly to Limerick. It is served by Shannon (SNN), located 12.4 miles from Limerick.
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Flight Deals

Cheap Flights from Heathrow to Limerick (LHR-SNN)

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

Wed, 9 Sep - Mon, 28 Sep
Aer Lingus Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN  Shannon-LHR London Heathrow
1h 25mdirect
£74Aer Lingus
Fri, 25 Sep - Sun, 27 Sep
Aer Lingus Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN  Shannon-LHR London Heathrow
1h 25mdirect
£74Aer Lingus
Fri, 2 Oct - Thu, 8 Oct
Aer Lingus Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Aer Lingus Logo
07:30 - 09:05SNN  Shannon-LHR London Heathrow
1h 35mdirect
£76Aer Lingus
Wed, 9 Sep - Wed, 16 Sep
Aer Lingus Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Aer Lingus Logo
07:30 - 09:05SNN  Shannon-LHR London Heathrow
1h 35mdirect
£77Aer Lingus
Wed, 9 Sep - Tue, 15 Sep
Aer Lingus Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN  Shannon-LHR London Heathrow
1h 25mdirect
£77Aer Lingus
Fri, 4 Sep - Fri, 11 Sep
Aer Lingus Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN  Shannon-LHR London Heathrow
1h 25mdirect
£77Aer Lingus
Tue, 8 Sep - Wed, 16 Sep
Aer Lingus Logo
14:40 - 16:10LHR  London Heathrow-SNN Shannon
1h 30mdirect
Aer Lingus Logo
07:30 - 09:05SNN  Shannon-LHR London Heathrow
1h 35mdirect
£77Aer Lingus
Thu, 10 Sep - Tue, 15 Sep
Aer Lingus Logo
14:40 - 16:10LHR  London Heathrow-SNN Shannon
1h 30mdirect
Aer Lingus Logo
21:15 - 22:40SNN  Shannon-LHR London Heathrow
1h 25mdirect
£78Aer Lingus
Wed, 9 Sep - Tue, 22 Sep
Multiple Airlines Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Multiple Airlines Logo
16:05 - 09:10SNN  Shannon-LHR London Heathrow
17h 05m2 stops Manchester Barcelona-El Prat
£135Multiple Airlines
Thu, 24 Sep - Sun, 27 Sep
Multiple Airlines Logo
19:10 - 20:35LHR  London Heathrow-SNN Shannon
1h 25mdirect
Multiple Airlines Logo
20:35 - 21:45SNN  Shannon-LHR London Heathrow
25h 10m2 stops Liverpool J. Lennon Dublin
£139Multiple Airlines
Useful Info

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

Low season

January

Cheapest flight

£47
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from London Heathrow Airport to Shannon

When to book flights from Heathrow to Limerick

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

FAQs for booking flights from London Heathrow Airport to Limerick

  • Which airports will I be using when flying from London Heathrow Airport to Limerick?

    When flying out of London Heathrow Airport you’ll be using London Heathrow. Limerick does not have its own airport so you’ll be flying into nearby Shannon airport, which is 12.4 mi away.

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

    Direct flights cover the 368 miles separating London Heathrow Airport and Limerick in about 1h 25m.

  • How many flights are there between London Heathrow Airport and Limerick?

    14 direct flights run between London Heathrow Airport and Limerick on a daily basis. On average, there are about 100 departures each week.

  • What’s the cheapest day of the week to fly between London Heathrow Airport and Limerick?

    Consider leaving on a Tuesday and avoid Saturdays if you're looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

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

    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 Limerick.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Limerick 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 Limerick?

    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 Limerick 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 Limerick?

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

Top tips for finding cheap flights from London Heathrow Airport to Limerick

  • There is no airport in Limerick. Instead, you’ll be flying into Shannon Airport when flying between London Heathrow Airport and Limerick.
  • The cheapest flight from London Heathrow Airport to Limerick was found 62 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be April, May and June. The cheapest month to fly is February.

Reviews of the top airline flying from Heathrow to Limerick

 
Need help choosing which airline to fly with from Heathrow to Limerick? 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 1693 reviews
7.2Comfort
6.7Food
7.5Boarding
8.1Crew
7.0Entertainment
Airline reviews

Like getting a bus. No great luxury but will get you there

8.0 ExcellentJmH, Jan 2026
Read more Aer Lingus reviews

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

I liked that I went thru customs in Dublin instead of having to do that in LA.

Baggage fees are deceptive! When I booked this flight, I purchased two tickets and had indicated that I wanted one checked bag. That increased the ticket price by about $100 PER TICKET!. When we went to check in, I was told that I could only check ONE bag, even though I had purchased TWO tickets. I had to pay an additional $50 each way for my wife’s bag. In my opinion, I paid twice for her bag.

Delays resulting in missed connecting flight. Attendant failed to arrange special assistance as promised to get us on connecting flight. Robyn was the particular attendant.

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

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

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

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

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

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