£46 Find Cheap Flights from London Heathrow Airport to Limerick

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 14/1. 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
£90
Overall average: £162
Aer Lingus
Thu 1/1Thu 15/1
LHR - SNN • Direct
Cheapest one-way flight
£46
Typical prices: £45-£64
Aer Lingus
Wed 14/1
LHR - SNN • Direct
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Flight Deals
Useful Info
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

Thu, 1 Jan - Thu, 15 Jan
Aer Lingus Logo
15:15 - 16:45
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£90Aer Lingus
Mon, 19 Jan - Tue, 20 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
17:30 - 18:55
SNN
-
LHR
1h 25mdirect
£93Aer Lingus
Mon, 5 Jan - Tue, 6 Jan
Aer Lingus Logo
18:05 - 19:25
LHR
-
SNN
1h 20mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£94Aer Lingus
Sat, 17 Jan - Sun, 18 Jan
Aer Lingus Logo
14:15 - 15:45
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
07:50 - 09:15
SNN
-
LHR
1h 25mdirect
£95Aer Lingus
Thu, 8 Jan - Sun, 11 Jan
Aer Lingus Logo
18:05 - 19:25
LHR
-
SNN
1h 20mdirect
Aer Lingus Logo
07:50 - 09:15
SNN
-
LHR
1h 25mdirect
£96Aer Lingus
Mon, 12 Jan - Tue, 13 Jan
Aer Lingus Logo
18:05 - 19:25
LHR
-
SNN
1h 20mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£102Aer Lingus
Sun, 18 Jan - Thu, 22 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£114Aer Lingus
Sat, 3 Jan - Sun, 11 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£117Aer Lingus
Fri, 30 Jan - Fri, 6 Feb
Aer Lingus Logo
15:15 - 16:45
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£118Aer Lingus
Tue, 17 Mar - Tue, 31 Mar
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
£120Aer Lingus
Useful Info

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

Low seasonJanuary
Cheapest flight£46
Best time to beat the crowds (41% 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 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 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 20m.

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

    12 direct flights run between London Heathrow Airport and Limerick on a daily basis. On average, there are about 88 departures each week.

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

    Consider leaving on a Monday 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 Thursdays and the most expensive ones on Sundays.

  • 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.

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

    In the last 72 hours, the cheapest one-way ticket between London Heathrow Airport and Limerick found on KAYAK was with Aer Lingus for £44. Ryanair offered a return connection from £22 and Aer Lingus from £80.

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 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 November, December and January. The cheapest month to fly is January.

Reviews of the top airlines 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.
7.2
Aer LingusOverall score based on 1399 reviews
7.1Comfort
8.0Crew
6.9Entertainment
6.6Food
7.4Boarding
Airline reviews

This is a bit of a rant, but I'll try to keep it civil. The flight was delayed for 2 hours with almost ZERO updates from agents. Just "there's technical issues, we don't know if or when it'll be resolved" once an hour maybe? And the gate signs, and app never updated to show the delay until it was finally resolved. So when I called Aer Lingus to see if I could rebook, I had literally the dumbest conversation with the person on the phone there where he says "It's showing your flight departed at 11:10. So it's already departed!", where I responded, "Well, it's 12:45 and I'm on the phone with you, standing in the airport, staring at the plane. So...I'm not sure what your system is saying, but we aren't in the air right now.". He said "Nothing I can do. Since it doesn't show delayed in my system, you would be charged to reschedule." Once we finally departed 2 hours late, things were going smoothly as I would expect, except in another very strange way. The stewardesses were rolling the cart down the aisle offering drinks and I asked for a water, to which they said "Sure, you can buy a bottle". I'm not sure if this is an Aer Lingus thing. Maybe something I'd expect from Ryan Air, but for a 3 hour international flight, to not have complimentary water available for customers is an absolute first, in 15 years of flying for me. I'm not upset with the plane staff at all. They were very friendly, but Aer Lingus' policies, how they handled the delay, and the unbelievable conversation with the customer service representative, leaves a lot to be desired in those areas. Also, I'm not upset about the delay. Things happen. Technical issues. But this is a place where airlines really need to clearly communicate with their customers. They also changed gates from 12N to 13N and there was no notification on any app, or announcement over the PA. End of rant. I hope they get some feedback on how to improve communication, because otherwise, they were great. And the second leg of my trip was incredibly smooth - no nickle and diming water, no communication issues. Very professional and efficient and even landed early

2.0 MediocreAnonymous, Dec 2025
WAW - DUB
Read more Aer Lingus reviews

This is a bit of a rant, but I'll try to keep it civil. The flight was delayed for 2 hours with almost ZERO updates from agents. Just "there's technical issues, we don't know if or when it'll be resolved" once an hour maybe? And the gate signs, and app never updated to show the delay until it was finally resolved. So when I called Aer Lingus to see if I could rebook, I had literally the dumbest conversation with the person on the phone there where he says "It's showing your flight departed at 11:10. So it's already departed!", where I responded, "Well, it's 12:45 and I'm on the phone with you, standing in the airport, staring at the plane. So...I'm not sure what your system is saying, but we aren't in the air right now.". He said "Nothing I can do. Since it doesn't show delayed in my system, you would be charged to reschedule." Once we finally departed 2 hours late, things were going smoothly as I would expect, except in another very strange way. The stewardesses were rolling the cart down the aisle offering drinks and I asked for a water, to which they said "Sure, you can buy a bottle". I'm not sure if this is an Aer Lingus thing. Maybe something I'd expect from Ryan Air, but for a 3 hour international flight, to not have complimentary water available for customers is an absolute first, in 15 years of flying for me. I'm not upset with the plane staff at all. They were very friendly, but Aer Lingus' policies, how they handled the delay, and the unbelievable conversation with the customer service representative, leaves a lot to be desired in those areas. Also, I'm not upset about the delay. Things happen. Technical issues. But this is a place where airlines really need to clearly communicate with their customers. They also changed gates from 12N to 13N and there was no notification on any app, or announcement over the PA. End of rant. I hope they get some feedback on how to improve communication, because otherwise, they were great. And the second leg of my trip was incredibly smooth - no nickle and diming water, no communication issues. Very professional and efficient and even landed early

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

It all went very well, except for the ramp coordination upon landing in Boston. That, however, was resolved in fairly short order.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

On time arrival but the aircraft had seen better days and needed a deep clean.

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

Flight was fine, crew were good, cabin director spoke far too much; disembarking at Dublin Airport and entry into the terminal building was just dreadful, like entering the back door of a neglected factory building. What an awful impression it must give to first time visitors to Ireland.

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

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