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Cheap flights from Limerick to London Heathrow Airport from £90

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORK — LHR
31 Mar — 7 Apr1
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 26 March 2025.

Round-trip from

£90

Popular in

July

Cheapest in

February

Average price

£117
Aer Lingus
  • Aer Lingus
  • 5/4-14/4
  • Nonstop
  • 2h 50m total
  • Limerick to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£17 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 March 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 26 March 2025.

Wed 26/320:05SNN - LHR
Nonstop1h 20mBritish Airways
Fri 28/318:05LHR - SNN
Nonstop1h 20mBritish Airways
Deal found 25/3£277
Fri 9/521:15SNN - LHR
Nonstop1h 25mMultiple Airlines
Fri 16/510:35LHR - SNN
1 stop4h 35mMultiple Airlines
Deal found 25/3£328
Thu 10/407:10SNN - LHR
2 stops11h 45mAer Lingus
Fri 11/419:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 26/3£377
Wed 1/1012:30SNN - LHR
1 stop32h 10mLufthansa
Sat 4/1015:20LHR - SNN
1 stop18h 55mLufthansa
Deal found 25/3£6,300
Wed 26/314:00SNN - LHR
1 stop18h 40mAmerican Airlines
Sun 30/309:45LHR - SNN
1 stop20h 10mAmerican Airlines
Deal found 26/3£7,355
Sat 10/512:30SNN - LHR
1 stop18h 15mUnited Airlines
Sat 17/516:00LHR - SNN
1 stop18h 15mUnited Airlines
Deal found 26/3£10,304

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 26 March 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 9/5

21:15-22:40

Nonstop1h 25m

London Heathrow

Fri 16/5

10:35-15:10

1 stop4h 35m

£328

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 10/4

07:10-18:55

2 stops11h 45m

London Heathrow

Fri 11/4

19:10-20:35

Nonstop1h 25m

£377

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 11/4

07:40-09:05

Nonstop1h 25m

London Heathrow

Tue 15/4

14:40-16:10

Nonstop1h 30m

£717

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 11/4

14:40-11:05

1 stop20h 25m

London Heathrow

Tue 15/4

09:45-05:55

1 stop20h 10m

£7,355

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 10/5

12:30-06:45

1 stop18h 15m

London Heathrow

Sat 17/5

16:00-10:15

1 stop18h 15m

£10,304

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 2/7

12:30-07:15

1 stop18h 45m

London Heathrow

Sat 5/7

09:30-10:15

1 stop24h 45m

£10,471

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Tue 17/6

08:20-15:55

2 stops7h 35m

£132

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sun 21/9

13:45-06:30

1 stop16h 45m

£875

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 14/6

12:30-20:40

1 stop32h 10m

£1,759

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 27/8

09:30-11:45

1 stop26h 15m

£3,520

Flights are sorted by cheapest return flights first.

Deals found on 26/3

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 26 March 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 Friday mornings 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 26 March 2025.
To help decide which airline to fly from Limerick to London, see what other customers have to say about United Airlines, JetBlue and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,608 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.3
Good
2,922 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.0
Good
1,062 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.7
Okay
6,952 reviews
United Airlines
7.4
Good
8,608 reviews
Check prices

Comfort

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 £875 on JetBlue. Other airlines that offer cheap prices include Lufthansa from £1,759 and United Airlines from £3,520 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: Air Canada (93%), Aer Lingus (92%), British Airways( 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 £1,285, our data shows the cheapest flight currently is £44. When looking at the most popular route, (Shannon - London Heathrow), you can expect to pay £84 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
Deal
Milton Keynes
Gatwick
Croydon
Luton
Slough
Eastbourne
Wembley
Northampton
Swindon
Hayes
Ilford
Crawley
Southend-on-Sea
Winchester
Maidstone
Ipswich
Watford
Southall

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.
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Shannon to Heathrow flights
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Cork to Stansted flights
Knock to Luton flights
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Shannon to Stansted flights
Cork to Luton flights
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Shannon to Gatwick flights
Knock to Gatwick flights
Milltown (Kerry) to Luton flights
Milltown (Kerry) to Stansted flights
Shannon to London City flights
Milltown (Kerry) to Gatwick flights
Knock to London City flights
Knock to Southend 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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£74Average£125FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£134Average£159FlexibilityNo 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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