How long is the flight from London Heathrow Airport to Shannon, Clare?

For as low as £97, Aer Lingus can have you in Shannon, Clare from London Heathrow Airport in 1h 30m. Airlines will cover a distance of 368 mi. Most flights are nonstop.

What is the cheapest airline to fly from London Heathrow Airport to Shannon, Clare round-trip?

Flying on Aer Lingus is currently your cheapest option to Shannon, Clare, with prices starting at £94. Aer Lingus is priced at 34% lower than the current average price of a flight leaving 3 months from now.

Weekly flight availability from London Heathrow Airport to Shannon, Clare

The most flights from LHR to SNN are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

In terms of precipitation, rainfall in Shannon, Clare ranges from 59.0 - 105.0 inches per month. October is typically the wettest month, when rainfall can reach 105.0 mm. April is typically the driest time to visit Shannon, Clare when rainfall is around 59.0 mm.

If weather is an important factor for your trip to Shannon, Clare, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.0 C).

What are the cheapest flights from London Heathrow Airport to Shannon, Clare?

While on average a flight from London Heathrow Airport to Shannon, Clare is generally £260, our data shows the cheapest flight currently is £61. When looking at the most popular route, (London Heathrow - Shannon), you can expect to pay £97 for that flight.

What are the most reliable airlines from London Heathrow Airport to Shannon, Clare?

Before booking your flight to Shannon, Clare from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (84%), Qatar Airways (84%), Air Canada( 84%).

What airport do you fly into for flights to Shannon from London Heathrow?

For a flight from London Heathrow to Shannon, you will be flying into Shannon. Shannon (SNN) is just 2.1 mi from the center of the city. Shannon is the only Shannon airport and it handles 14 inbound flights from London Heathrow per day. 1 airline has flights to Shannon from London Heathrow on a regular basis.

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

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

How can I find direct flights from Heathrow to Shannon?

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

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

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

£48+ Cheap Flights from London Heathrow Airport to Shannon

Cheapflights Tip: The best prices from London Heathrow to Shannon are usually found in February or March, booked 62 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Heathrow to Shannon

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to Shannon
Explore the most affordable flight options available from Heathrow to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Tue 24/1115:15 -

Nonstop1h 30m

Tue 1/1217:30 -

Nonstop1h 25m

Deal found 10/10£91

Sat 7/1114:15 -

Nonstop1h 30m

Fri 13/1120:05 -

Nonstop1h 20m

Deal found 7/10£92

Sat 7/1114:15 -

Nonstop1h 30m

Wed 11/1117:30 -

Nonstop1h 25m

Deal found 10/10£93

Mon 2/1115:15 -

Nonstop1h 30m

Thu 5/1120:05 -

Nonstop1h 20m

Deal found 11/10£94

Sat 7/1114:15 -

Nonstop1h 30m

Mon 9/1117:30 -

Nonstop1h 25m

Deal found 11/10£94

Sat 14/1110:00 -

Nonstop1h 30m

Sun 15/1107:50 -

Nonstop1h 25m

Deal found 11/10£95

Sat 7/1114:15 -

Nonstop1h 30m

Tue 17/1117:30 -

Nonstop1h 25m

Deal found 8/10£97

Wed 4/1118:05 -

Nonstop1h 20m

Wed 11/1117:30 -

Nonstop1h 25m

Deal found 7/10£98

Mon 2/1118:05 -

Nonstop1h 20m

Mon 9/1117:30 -

Nonstop1h 25m

Deal found 7/10£99

Find flight deals from Heathrow to Shannon

Round-trip from	£91
One-way from	£48
Popular in	May
Cheapest in	February
Average price	£147
Good round-trip deal	£193 or less
Good one-way deal	£84 or less

Aer Lingus
24/11-1/12
Nonstop
2h 55m total
London to Shannon

Search Deals

Aer Lingus
19/10-31/12
Nonstop
1h 25m total
London to Shannon

Search Deals

Highest demand for flights based on searches. 7% 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 October 2026

Search Deals

Price to beat on a round-trip flight from London Heathrow to Shannon.

Search Deals

Price to beat on a one-way flight from London Heathrow to Shannon.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Shannon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Wed 25/11

15:15-16:45

Nonstop1h 30m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£48

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Wed 21/10

19:10-20:35

Nonstop1h 25m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£48

Fastest return journey

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Fri 4/12

18:05-19:25

Nonstop1h 20m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£49

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Wed 11/11

18:05-19:25

Nonstop1h 20m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£51

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Mon 9/11

10:00-11:30

Nonstop1h 30m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£51

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Tue 10/11

10:00-11:30

Nonstop1h 30m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£51

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Thu 12/11

15:15-16:45

Nonstop1h 30m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£51

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Wed 2/12

20:50-20:10

2 stops23h 20m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£89

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Wed 21/10

15:10-23:35

2 stops8h 25m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£91

LondonShannon

LHR London Heathrow - SNN Shannon

LHRSNN

London Heathrow

Sat 14/11

12:10-07:30

2 stops19h 20m

Shannon

Wed 31/12

00:00-00:00

Nonstop0h 00m

£94

Flights are sorted by cheapest return flights first.

Deals found on 10/10

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from Heathrow to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Heathrow with our price prediction graph.

LHR-SNN

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 London Heathrow Airport to Shannon

Prices

Airlines

How far ahead should I book a flight from London Heathrow Airport to Shannon, Clare?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Shannon, Clare, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Shannon, Clare (average of £119). Flying from London Heathrow Airport to Shannon, Clare in May is currently the most expensive (average of £165). 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 LHR to SNN?

When flying from London Heathrow Airport to Shannon, Clare, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 72% versus a flight in the morning.

How much does it cost for a return flight from London Heathrow Airport to Shannon, Clare?

Airfare is below average for this route at the moment.

London Heathrow Airport to Shannon, Clare flights typically cost between £125 and £182 in November.
The cheapest return price found within the last 5 days was £91 on Aer Lingus (24 Nov–1 Dec).

Reviews of airlines servicing Shannon

Check out reviews from past customers who have flown with Aer Lingus from London Heathrow Airport to Shannon to help guide your decision. 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

1,819 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2026

BOS - SNN

Seats were very uncomfortable and mine was falling apart. My entertainment system didn’t work at all, just a black screen. It was hot in the plane, the airflow alternated between room temperature and warm. The food was gross.

Aer Lingus

7.3

Good

1,819 reviews

Aer Lingus

7.3

Good

1,819 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2026

BOS - SNN

Related info for your journey

What airport do you fly into for flights to Shannon from London Heathrow?
For a flight from London Heathrow to Shannon, you will be flying into Shannon. Shannon (SNN) is just 2.1 mi from the center of the city. Shannon is the only Shannon airport and it handles 14 inbound flights from London Heathrow per day. 1 airline has flights to Shannon from London Heathrow on a regular basis.
How long is the flight from London Heathrow Airport to Shannon, Clare?
For as low as £97, Aer Lingus can have you in Shannon, Clare from London Heathrow Airport in 1h 30m. Airlines will cover a distance of 368 mi. Most flights are nonstop.
What is the cheapest airline to fly from London Heathrow Airport to Shannon, Clare round-trip?
Flying on Aer Lingus is currently your cheapest option to Shannon, Clare, with prices starting at £94. Aer Lingus is priced at 34% lower than the current average price of a flight leaving 3 months from now.
What are the most reliable airlines from London Heathrow Airport to Shannon, Clare?
Before booking your flight to Shannon, Clare from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (84%), Qatar Airways (84%), Air Canada( 84%).
What are the cheapest flights from London Heathrow Airport to Shannon, Clare?
While on average a flight from London Heathrow Airport to Shannon, Clare is generally £260, our data shows the cheapest flight currently is £61. When looking at the most popular route, (London Heathrow - Shannon), you can expect to pay £97 for that flight.
Can I find deals for flights from Heathrow to Shannon that include hotel bookings?
Yes. In addition to deals on Heathrow to Shannon flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Shannon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Shannon.
Can I find deals for business class flights from Heathrow to Shannon?
Yes. Cheapflights offers flight deals from Heathrow to Shannon 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 London Heathrow Airport to Shannon, Clare?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Shannon, Clare (average of £119). Flying from London Heathrow Airport to Shannon, Clare in May is currently the most expensive (average of £165). 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.

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Top airline flying from Heathrow to Shannon

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£94	Average£141	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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

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 Shannon from Heathrow today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Shannon.

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

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

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Cheap flights from London Heathrow Airport to Shannon from £48

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Shannon

Cheapest flights from Heathrow to ShannonExplore the most affordable flight options available from Heathrow to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Explore the most affordable flight options available from Heathrow to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Best flights from Heathrow to ShannonDiscover carefully curated flight deals from Heathrow to Shannon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Discover carefully curated flight deals from Heathrow to Shannon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Direct flights from Heathrow to ShannonExplore direct flight options from Heathrow to Shannon based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Explore direct flight options from Heathrow to Shannon based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Last-minute flights from Heathrow to ShannonDiscover last-minute flight deals from Heathrow to Shannon. Data last updated 12 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Shannon. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Heathrow to ShannonSearch for one-way flight options from Heathrow to Shannon. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Search for one-way flight options from Heathrow to Shannon. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Find flight deals from Heathrow to Shannon

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Popular in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Shannon that are best for you.

Best time to book a flight from Heathrow to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Heathrow with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from London Heathrow Airport to Shannon, Clare?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Shannon, Clare, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Shannon, Clare?

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

When flying from London Heathrow Airport to Shannon, Clare, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 72% versus a flight in the morning.

How much does it cost for a return flight from London Heathrow Airport to Shannon, Clare?

Airfare is below average for this route at the moment.

London Heathrow Airport to Shannon, Clare flights typically cost between £125 and £182 in November.The cheapest return price found within the last 5 days was £91 on Aer Lingus (24 Nov–1 Dec).

Weekly flight availability from London Heathrow Airport to Shannon, Clare

The most flights from LHR to SNN are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Shannon

Check out reviews from past customers who have flown with Aer Lingus from London Heathrow Airport to Shannon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Shannon from London Heathrow?

How long is the flight from London Heathrow Airport to Shannon, Clare?

What is the cheapest airline to fly from London Heathrow Airport to Shannon, Clare round-trip?

What are the most reliable airlines from London Heathrow Airport to Shannon, Clare?

What are the cheapest flights from London Heathrow Airport to Shannon, Clare?

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

How can I find direct flights from Heathrow to Shannon?

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

What is the cheapest month to book a flight from London Heathrow Airport to Shannon, Clare?

Travelling to a place near Shannon?

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Alternative routes for Heathrow to Shannon

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Complete your trip

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Direct flights to Ireland

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Search flights from Heathrow to Shannon by cabin class

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Heathrow and Shannon flights

Browse other Heathrow and Shannon flight options. Last updated on 12 October 2026.

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Explore flights to Shannon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 October 2026.

Top airline flying from Heathrow to Shannon

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

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

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Cheapest flights from Heathrow to Shannon
Explore the most affordable flight options available from Heathrow to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Best flights from Heathrow to Shannon
Discover carefully curated flight deals from Heathrow to Shannon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Direct flights from Heathrow to Shannon
Explore direct flight options from Heathrow to Shannon based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Last-minute flights from Heathrow to Shannon
Discover last-minute flight deals from Heathrow to Shannon. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Heathrow to Shannon
Search for one-way flight options from Heathrow to Shannon. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

London Heathrow Airport to Shannon, Clare flights typically cost between £125 and £182 in November.
The cheapest return price found within the last 5 days was £91 on Aer Lingus (24 Nov–1 Dec).