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Cheap flights from Limerick to London Heathrow Airport from £45

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORK — LHR
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£94

One-way from

£45

Popular in

July

Cheapest in

February

Average price

£141
Aer Lingus
  • Aer Lingus
  • 14/7-15/7
  • Nonstop
  • 2h 55m total
  • Limerick to London
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Aer Lingus
  • Aer Lingus
  • 10/7
  • Nonstop
  • 1h 25m total
  • Limerick to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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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 4 July 2025.

Thu 10/721:15SNN - LHR
Nonstop1h 25mAer Lingus
Mon 14/719:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 3/7£93
Thu 17/721:15SNN - LHR
Nonstop1h 25mMultiple Airlines
Mon 21/721:40LHR - SNN
1 stop14h 55mMultiple Airlines
Deal found 4/7£128
Wed 13/816:55SNN - LHR
Nonstop1h 25mBritish Airways
Sun 17/819:10LHR - SNN
Nonstop1h 25mBritish Airways
Deal found 3/7£212

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 4 July 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

Mon 14/7

21:15-22:40

Nonstop1h 25m

London Heathrow

Tue 15/7

14:40-16:10

Nonstop1h 30m

£94

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 17/7

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 21/7

21:40-12:35

1 stop14h 55m

£128

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 13/8

16:55-18:20

Nonstop1h 25m

London Heathrow

Sun 17/8

19:10-20:35

Nonstop1h 25m

£212

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 10/7

21:15-22:40

Nonstop1h 25m

£45

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 27/8

14:20-20:50

1 stop6h 30m

£95

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 9/7

21:15-22:40

Nonstop1h 25m

£98

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 15/10

13:45-06:30

1 stop16h 45m

£902

Flights are sorted by cheapest return flights first.

Deals found on 3/7

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 4 July 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 30 June 2024.

Travellers seeking maximum savings on their Limerick to London Heathrow Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Wednesday 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 4 July 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 4 July 2025.
Read through reviews of airlines operating flights from Limerick to London Heathrow Airport, such as JetBlue, Aer Lingus, andBritish Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Crew

8.0

Boarding

7.5

Overall

7.3

Entertainment

7.3

Food

6.7

Reviews

1 / 20
4.0
Okay

Charles,Aug 2024

MCO - BDL

we were told the night before that the flight would be delayed ~50 minutes but that we should show up on time. We did but at the new doors open time people were still deplaning from our aircraft. We finally left the gate 1:48 minutes late but the captain said an indicator showed and we weren't allowed to taxi. Maintenace came on board did some stuff, then we took off. Because of Tropical storm Debbie we went way east over the ocean. It was still rough though no fault of Jet Blue.
JetBlue
7.3
Good
2,916 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Crew

8.0

Boarding

7.5

Overall

7.3

Entertainment

7.3

Food

6.7

Reviews

1 / 20
4.0
Okay

Charles,Aug 2024

MCO - BDL

we were told the night before that the flight would be delayed ~50 minutes but that we should show up on time. We did but at the new doors open time people were still deplaning from our aircraft. We finally left the gate 1:48 minutes late but the captain said an indicator showed and we weren't allowed to taxi. Maintenace came on board did some stuff, then we took off. Because of Tropical storm Debbie we went way east over the ocean. It was still rough though no fault of Jet Blue.
Aer Lingus
7.1
Good
1,144 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Crew

8.0

Boarding

7.5

Overall

7.3

Entertainment

7.3

Food

6.7

Reviews

1 / 20
4.0
Okay

Charles,Aug 2024

MCO - BDL

we were told the night before that the flight would be delayed ~50 minutes but that we should show up on time. We did but at the new doors open time people were still deplaning from our aircraft. We finally left the gate 1:48 minutes late but the captain said an indicator showed and we weren't allowed to taxi. Maintenace came on board did some stuff, then we took off. Because of Tropical storm Debbie we went way east over the ocean. It was still rough though no fault of Jet Blue.
British Airways
6.6
Okay
7,093 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Crew

8.0

Boarding

7.5

Overall

7.3

Entertainment

7.3

Food

6.7

Reviews

1 / 20
4.0
Okay

Charles,Aug 2024

MCO - BDL

we were told the night before that the flight would be delayed ~50 minutes but that we should show up on time. We did but at the new doors open time people were still deplaning from our aircraft. We finally left the gate 1:48 minutes late but the captain said an indicator showed and we weren't allowed to taxi. Maintenace came on board did some stuff, then we took off. Because of Tropical storm Debbie we went way east over the ocean. It was still rough though no fault of Jet Blue.

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.

  • What are the cheapest airlines to fly from Limerick to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £45 on Aer Lingus. Other airlines that offer cheap prices include British Airways from £98 and JetBlue from £902 one-way.

  • 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: Qatar Airways (96%), Air Canada (95%), Aer Lingus( 95%).

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

    While on average a flight from Limerick to London Heathrow Airport is generally £134, our data shows the cheapest flight currently is £56. When looking at the most popular route, (Shannon - London Heathrow), you can expect to pay £93 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 Limerick?

Book flights to Limerick if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
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Slough
Wembley
Crawley
Eastbourne
Ilford
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Watford
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Swindon
Maidstone

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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.
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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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£70Average£130FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£137Average£153FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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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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