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Cheap flights from Limerick to London Heathrow Airport from £35

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORK — LHR
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Limerick to Heathrow

Keep the following information in mind while searching for Limerick to Heathrow flight deals. Data was last updated 12 September 2025.

Round-trip from

£78

One-way from

£35

Popular in

August

Cheapest in

February

Average price

£121
Aer Lingus
  • Aer Lingus
  • 17/10-20/10
  • Nonstop
  • 2h 50m total
  • Limerick to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 11/10
  • Nonstop
  • 1h 25m total
  • Limerick to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Limerick to Heathrow

Cheapest flights from Limerick to Heathrow
Explore the most affordable flight options available from Limerick to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Fri 17/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Mon 20/1019:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 11/9£78
Thu 2/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Sun 5/1009:50LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 10/9£78
Thu 9/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Mon 13/1009:50LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 12/9£79
Wed 8/1016:55SNN - LHR
Nonstop1h 25mAer Lingus
Wed 15/1014:40LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 11/9£81
Wed 15/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Thu 16/1014:40LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 11/9£86
Thu 16/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Sat 18/1014:20LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 11/9£89
Sun 5/1007:40SNN - LHR
Nonstop1h 25mAer Lingus
Sun 12/1009:50LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 11/9£92
Fri 26/921:15SNN - LHR
Nonstop1h 25mAer Lingus
Tue 30/909:50LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 10/9£96
Sun 26/1020:05SNN - LHR
Nonstop1h 20mAer Lingus
Sun 2/1118:05LHR - SNN
Nonstop1h 20mAer Lingus
Deal found 11/9£97
Fri 14/1120:05SNN - LHR
Nonstop1h 20mAer Lingus
Sun 16/1110:00LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 11/9£98

Cheapflights Fare Finder

 
Customise your flight search to find flights from Limerick to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Limerick to London Heathrow Airport that are best for you.

Fly from

Limerick

Fly to

Heathrow

Route

Depart

Return

Price

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 10/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 13/10

19:10-20:35

Nonstop1h 25m

£78

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 2/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Sun 5/10

09:50-11:20

Nonstop1h 30m

£78

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 15/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Thu 16/10

14:40-16:10

Nonstop1h 30m

£86

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 16/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Sat 18/10

14:20-15:50

Nonstop1h 30m

£89

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 8/11

17:25-18:50

Nonstop1h 25m

London Heathrow

Sat 15/11

10:00-11:30

Nonstop1h 30m

£97

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sun 26/10

20:05-21:25

Nonstop1h 20m

London Heathrow

Sun 2/11

18:05-19:25

Nonstop1h 20m

£97

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 14/11

20:05-21:25

Nonstop1h 20m

London Heathrow

Sun 16/11

10:00-11:30

Nonstop1h 30m

£99

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 22/11

17:25-18:50

Nonstop1h 25m

London Heathrow

Sun 23/11

10:00-11:30

Nonstop1h 30m

£99

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 18/10

07:40-09:05

Nonstop1h 25m

London Heathrow

Sat 18/10

14:20-15:50

Nonstop1h 30m

£100

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 25/10

16:50-18:20

Nonstop1h 30m

London Heathrow

Sat 1/11

10:00-11:30

Nonstop1h 30m

£105

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 22 results
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2
3

Best time to book a flight from Limerick to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Limerick with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Limerick to London Heathrow Airport

What is the cheapest month to book a flight from Limerick to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Limerick to London Heathrow Airport (average of £112). Flying from Limerick to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LR9 to LHR?

Find hourly flight availability from Limerick to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

When flying from Limerick to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Limerick to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Limerick to Heathrow. Price data was last updated on 7 September 2025.

Travellers seeking maximum savings on their Limerick to London Heathrow Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Limerick to London Heathrow Airport

Explore weekly flight availability from Limerick to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 September 2025.

The most flights from LR9 to LHR are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost for a return flight from Limerick to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 12 September 2025.
Read through reviews of airlines operating flights from Limerick to London Heathrow Airport, such as Aer Lingus. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,271 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.3

Comfort

7.1

Overall

7.2

Food

6.5

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Aer Lingus
7.2
Good
1,271 reviews
Aer Lingus
7.2
Good
1,271 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.3

Comfort

7.1

Overall

7.2

Food

6.5

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.

Related info for your journey

Find useful and relevant information for your journey from Limerick to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Limerick to London Heathrow Airport?

    Aer Lingus can get you from Limerick to London Heathrow Airport in just under 1h 25m. Your travel time will be generally consistent. The distance from Limerick to London Heathrow Airport is about 368 mi. Most flights are nonstop.

  • What are the most reliable airlines from Limerick to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Limerick, check out the most reliable airlines to get you to your destination on time: British Airways (93%), Qatar Airways (92%), Aer Lingus( 92%).

  • What are the cheapest flights from Limerick to London Heathrow Airport?

    While on average a flight from Limerick to London Heathrow Airport is generally £372, our data shows the cheapest flight currently is £48. When looking at the most popular route, (Shannon - London Heathrow), you can expect to pay £95 for that flight.

  • Can I find deals for flights from Limerick to Heathrow that include hotel bookings?

    Yes. In addition to deals on Limerick to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Limerick to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Limerick to Heathrow.

  • Can I find deals for business class flights from Limerick to Heathrow?

    Yes. Cheapflights offers flight deals from Limerick to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Limerick to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Limerick to London Heathrow Airport (average of £112). Flying from Limerick to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Winchester
Chichester
Ipswich
Swindon
Dartford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Limerick to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Heathrow flights
Dublin to Southend flights
Dublin to London City flights
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Shannon to Heathrow flights
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Cork to Luton flights
Cork to Stansted flights
Knock to Heathrow flights
Shannon to Gatwick flights
Shannon to Stansted flights
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Milltown (Kerry) to Luton flights
Knock to Luton flights
Knock to Stansted flights
Milltown (Kerry) to Stansted flights
Shannon to London City flights
Milltown (Kerry) to Gatwick flights
Knock to Southend flights
Knock to London City flights
Shannon to Southend flights

Top 2 airlines flying from Limerick to Heathrow

Discover the top 2 airlines that operate flights from Limerick to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£70Average£133FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£137Average£153FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Limerick to Heathrow?

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Why should you use Cheapflights to find cheap flight tickets from Limerick to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Limerick to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Limerick to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Limerick to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Limerick to Heathrow become cheaper?

Yes! Start tracking prices for Limerick to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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