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Cheap flights from Limerick to London Heathrow Airport from £55

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORK — LHR
19 Jan — 26 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Limerick to Heathrow

Enter your travel dates to find the best prices.

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 20 December 2025.

Tue 23/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Fri 26/1218:05LHR - SNN
Nonstop1h 20mAer Lingus
Deal found 19/12£129
Tue 23/1220:05SNN - LHR
Nonstop1h 20mMultiple Airlines
Fri 26/1219:05LHR - SNN
1 stop16h 05mMultiple Airlines
Deal found 19/12£189
Sun 21/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Wed 24/1210:00LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 20/12£203
Sat 20/1217:25SNN - LHR
Nonstop1h 25mAer Lingus
Wed 24/1215:15LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 20/12£206
Wed 24/1217:30SNN - LHR
Nonstop1h 25mAer Lingus
Sat 27/1214:15LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 20/12£208
Wed 24/1217:30SNN - LHR
Nonstop1h 25mBritish Airways
Wed 31/1210:00LHR - SNN
Nonstop1h 30mBritish Airways
Deal found 18/12£218
Mon 29/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Thu 1/115:15LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 20/12£233
Mon 29/1223:15SNN - LHR
2 stops13h 50mMultiple Airlines
Thu 1/115:15LHR - SNN
Nonstop1h 30mMultiple Airlines
Deal found 20/12£252
Sat 20/1217:25SNN - LHR
Nonstop1h 25mMultiple Airlines
Wed 24/1219:05LHR - SNN
2 stops38h 10mMultiple Airlines
Deal found 20/12£256
Wed 24/1207:40SNN - LHR
2 stops12h 10mMultiple Airlines
Sat 27/1214:15LHR - SNN
Nonstop1h 30mMultiple Airlines
Deal found 20/12£263
Sun 21/1223:55SNN - LHR
2 stops21h 10mMultiple Airlines
Wed 24/1210:00LHR - SNN
Nonstop1h 30mMultiple Airlines
Deal found 20/12£274

Find flight deals from Limerick to Heathrow

Keep the following information in mind while searching for Limerick to Heathrow flight deals. Data was last updated 20 December 2025.

Round-trip from

£123

One-way from

£55

Popular in

August

Cheapest in

February

Average price

£138
Aer Lingus
  • Aer Lingus
  • 2/2-9/2
  • Nonstop
  • 2h 50m total
  • Limerick to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 5/1
  • Nonstop
  • 1h 20m total
  • Limerick to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 20 December 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 12/1

17:30-18:55

Nonstop1h 25m

London Heathrow

Tue 13/1

10:00-11:30

Nonstop1h 30m

£128

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 7/1

20:05-21:25

Nonstop1h 20m

London Heathrow

Sat 10/1

10:00-11:30

Nonstop1h 30m

£128

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sun 8/2

20:05-21:25

Nonstop1h 20m

London Heathrow

Tue 10/2

18:05-19:25

Nonstop1h 20m

£129

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 17/1

17:25-18:50

Nonstop1h 25m

London Heathrow

Mon 19/1

10:00-11:30

Nonstop1h 30m

£129

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 9/1

20:05-21:25

Nonstop1h 20m

London Heathrow

Sun 11/1

10:00-11:30

Nonstop1h 30m

£129

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 6/2

17:30-18:55

Nonstop1h 25m

London Heathrow

Sat 21/2

10:00-11:30

Nonstop1h 30m

£135

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Mon 12/1

17:30-18:55

Nonstop1h 25m

London Heathrow

Tue 13/1

20:50-12:10

2 stops15h 20m

£155

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 8/1

07:50-09:15

Nonstop1h 25m

London Heathrow

Sun 11/1

20:50-10:55

2 stops38h 05m

£158

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 19/2

17:30-18:55

Nonstop1h 25m

London Heathrow

Sun 22/2

10:00-11:30

Nonstop1h 30m

£170

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 7/1

07:40-19:50

2 stops12h 10m

London Heathrow

Sat 10/1

10:00-11:30

Nonstop1h 30m

£171

Flights are sorted by cheapest return flights first.

Deals found on 20/12

Showing 1-10 of 20 results
1
2

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, February is the cheapest month in which you can book a flight from Limerick to London Heathrow Airport (average of £31). Flying from Limerick to London Heathrow Airport in July is currently the most expensive (average of £114). 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 20 December 2025.

When flying from Limerick to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 76% versus a flight in the morning.

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 20 December 2025.

Travellers seeking maximum savings on their Limerick to London Heathrow Airport flight should consider departing on Saturday evenings 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.

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 20 December 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
1,406 reviews
Check prices

Crew

8.0

Boarding

7.4

Comfort

7.1

Entertainment

6.9

Food

6.6

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,406 reviews
Aer Lingus
7.2
Good
1,406 reviews
Check prices

Crew

8.0

Boarding

7.4

Comfort

7.1

Entertainment

6.9

Food

6.6

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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 20m. 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: Aer Lingus (87%), British Airways (87%), Qatar Airways( 86%).

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

    While on average a flight from Limerick to London Heathrow Airport is generally £275, our data shows the cheapest flight currently is £64. When looking at the most popular route, (Shannon - London Heathrow), you can expect to pay £123 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, February is the cheapest month in which you can book a flight from Limerick to London Heathrow Airport (average of £31). Flying from Limerick to London Heathrow Airport in July is currently the most expensive (average of £114). 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
Slough
Hounslow
Northampton
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Hayes
Watford
Crawley
Swindon
Winchester
Bedford
Romford
Chichester
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Limerick to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Gatwick flights
Dublin to Stansted flights
Dublin to Luton flights
Dublin to London City flights
Dublin to Heathrow flights
Dublin to Southend flights
Cork to Stansted flights
Cork to Heathrow flights
Cork to Gatwick flights
Shannon to Stansted flights
Shannon to Gatwick flights
Shannon to Heathrow flights
Shannon to Luton flights
Cork to Luton flights
Cork to London City flights
Knock to Gatwick flights
Knock to Luton flights
Knock to Heathrow flights
Knock to Stansted flights
Knock to London City flights
Shannon to Southend flights
Milltown (Kerry) to Luton flights
Shannon to London City flights
Milltown (Kerry) to Stansted flights
Milltown (Kerry) to Gatwick flights
Knock 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 20 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£71Average£140FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£139Average£166FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Limerick today with Cheapflights!

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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