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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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORK — LHR
7 Aug — 14 Aug1
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 8 July 2026.

Wed 5/821:15
SNN
-
LHR
Nonstop1h 25m
Aer Lingus
Sun 30/819:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 6/7£87
Mon 10/821:15
SNN
-
LHR
Nonstop1h 25m
Aer Lingus
Tue 11/819:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 8/7£90
Wed 5/807:30
SNN
-
LHR
Nonstop1h 35m
Aer Lingus
Tue 18/814:40
LHR
-
SNN
Nonstop1h 30m
Aer Lingus
Deal found 7/7£91
Wed 5/807:30
SNN
-
LHR
Nonstop1h 35m
Aer Lingus
Mon 10/819:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 7/7£92
Mon 13/721:15
SNN
-
LHR
Nonstop1h 25m
Aer Lingus
Thu 27/819:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 8/7£93
Mon 3/821:15
SNN
-
LHR
Nonstop1h 25m
Aer Lingus
Mon 10/819:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 6/7£93
Wed 5/821:15
SNN
-
LHR
Nonstop1h 25m
Aer Lingus
Tue 11/819:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 6/7£94
Wed 19/807:30
SNN
-
LHR
Nonstop1h 35m
Aer Lingus
Mon 31/809:50
LHR
-
SNN
Nonstop1h 30m
Aer Lingus
Deal found 3/7£95
Thu 13/807:30
SNN
-
LHR
Nonstop1h 35m
Aer Lingus
Mon 17/819:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 3/7£96
Thu 16/721:15
SNN
-
LHR
Nonstop1h 25m
Aer Lingus
Mon 20/719:10
LHR
-
SNN
Nonstop1h 25m
Aer Lingus
Deal found 6/7£97
Wed 19/807:30
SNN
-
LHR
Nonstop1h 35m
Aer Lingus
Wed 26/814:40
LHR
-
SNN
Nonstop1h 30m
Aer Lingus
Deal found 5/7£98

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 8 July 2026.

Round-trip from

£87

One-way from

£45

Popular in

June

Cheapest in

January

Average price

£154
Aer Lingus
  • Aer Lingus
  • 5/8-30/8
  • Nonstop
  • 2h 50m total
  • Limerick to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 20/7
  • Nonstop
  • 1h 25m total
  • Limerick to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£9 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 2026
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 8 July 2026.
Use the filters below to find and compare flights from Limerick to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 5/8

07:30-09:05

Nonstop1h 35m

London Heathrow

Mon 10/8

19:10-20:35

Nonstop1h 25m

£92
Fastest return journey

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 6/8

21:15-22:40

Nonstop1h 25m

London Heathrow

Sun 9/8

19:10-20:35

Nonstop1h 25m

£117

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 27/8

07:10-14:15

1 stop7h 05m

London Heathrow

Mon 31/8

09:50-11:20

Nonstop1h 30m

£147

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sun 16/8

21:15-22:40

Nonstop1h 25m

London Heathrow

Wed 19/8

15:10-23:35

2 stops8h 25m

£158

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 23/7

16:50-18:20

Nonstop1h 30m

London Heathrow

Mon 27/7

14:40-16:10

Nonstop1h 30m

£215

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 6/8

16:50-18:20

Nonstop1h 30m

London Heathrow

Sun 9/8

14:35-16:05

Nonstop1h 30m

£215

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 30/7

21:15-22:40

Nonstop1h 25m

London Heathrow

Sun 2/8

09:50-11:20

Nonstop1h 30m

£215

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 29/8

17:25-18:55

Nonstop1h 30m

London Heathrow

Mon 31/8

19:10-20:35

Nonstop1h 25m

£215

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 6/8

21:15-22:40

Nonstop1h 25m

London Heathrow

Sun 9/8

15:10-22:15

2 stops7h 05m

£218

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Mon 20/7

08:10-20:20

2 stops12h 10m

London Heathrow

Tue 28/7

07:40-16:10

2 stops8h 30m

£289

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 20 resultsSorted by cheapest first
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 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 8 July 2026.

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 67% versus a flight in the morning.

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 8 July 2026.

The most flights from LR9 to LHR are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (14 on average).

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

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 4 July 2026.

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 8 July 2026.
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
7.3
Good
1,648 reviews
Check prices

Comfort

7.2

Crew

8.1

Boarding

7.4

Overall

7.3

Entertainment

7.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Lama,May 2026

DUB - ALC

Seats were super small, there was no food, and they lost my bag.
Aer Lingus
7.3
Good
1,648 reviews
Aer Lingus
7.3
Good
1,648 reviews
Check prices

Comfort

7.2

Crew

8.1

Boarding

7.4

Overall

7.3

Entertainment

7.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Lama,May 2026

DUB - ALC

Seats were super small, there was no food, and they lost my bag.

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 and British Airways can get you from Limerick to London Heathrow Airport in just under 1h 30m. 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: American Airlines (93%), Air Canada (93%), Aer Lingus( 93%).

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

    While on average a flight from Limerick to London Heathrow Airport is generally £131, our data shows the cheapest flight currently is £48. When looking at the most popular route, (Shannon - London Heathrow), you can expect to pay £91 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.

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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Croydon
Ilford
Hayes
Brentford
Colchester
Northampton
Watford
Kingston upon Thames
Eastbourne
Swindon
Poole
Southall
Aylesbury
Romford

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.

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 8 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£83Average£136FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£158Average£182FlexibilityNo 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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