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Cheap flights from London Heathrow Airport to Shannon from €55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Shannon departing on 26/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from London Heathrow Airport to Shannon

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€107Aer Lingus
Tue, 26 May - Thu, 28 May
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€114Aer Lingus
Tue, 26 May - Tue, 2 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€115Aer Lingus
Tue, 26 May - Wed, 3 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€117Aer Lingus
Tue, 26 May - Thu, 28 May
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
07:30 - 09:05
SNN
-
LHR
1h 35mdirect
€133Aer Lingus
Tue, 2 Jun - Wed, 10 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€134Aer Lingus
Tue, 9 Jun - Thu, 18 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€136Aer Lingus
Thu, 4 Jun - Mon, 15 Jun
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€137Aer Lingus
Tue, 26 May - Fri, 29 May
Aer Lingus Logo
19:10 - 20:35
LHR
-
SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€137Aer Lingus
Fri, 29 May - Mon, 1 Jun
Aer Lingus Logo
09:50 - 11:20
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
21:15 - 22:40
SNN
-
LHR
1h 25mdirect
€138Aer Lingus
Tue, 9 Jun - Tue, 9 Jun

Aer Lingus flights from London Heathrow Airport to Shannon, Clare

Our best Aer Lingus deals on London Heathrow Airport to Shannon, Clare flight tickets
Aer Lingus
26 May
LHR19:10London Heathrow
1h 25m
SNN20:35Shannon
28 May
SNN21:15Shannon
1h 25m
LHR22:40London Heathrow
€107
Aer Lingus
19 May
LHR19:10London Heathrow
1h 25m
SNN20:35Shannon
20 May
SNN21:15Shannon
1h 25m
LHR22:40London Heathrow
€111
Aer Lingus
26 May
LHR19:10London Heathrow
1h 25m
SNN20:35Shannon
2 Jun
SNN21:15Shannon
1h 25m
LHR22:40London Heathrow
€114

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Shannon, Clare 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, momondo users made 13,528 searches. Data last updated 14 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 26/5

19:10-20:35

Nonstop1h 25m

Shannon

Thu 28/5

21:15-22:40

Nonstop1h 25m

€107

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 26/5

19:10-20:35

Nonstop1h 25m

Shannon

Tue 2/6

21:15-22:40

Nonstop1h 25m

€114

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 26/5

19:10-20:35

Nonstop1h 25m

Shannon

Wed 3/6

21:15-22:40

Nonstop1h 25m

€115

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 26/5

19:10-20:35

Nonstop1h 25m

Shannon

Thu 28/5

21:15-22:40

Nonstop1h 25m

€117

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 2/6

19:10-20:35

Nonstop1h 25m

Shannon

Wed 10/6

07:30-09:05

Nonstop1h 35m

€133

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 9/6

19:10-20:35

Nonstop1h 25m

Shannon

Thu 18/6

21:15-22:40

Nonstop1h 25m

€134

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 4/6

19:10-20:35

Nonstop1h 25m

Shannon

Mon 15/6

21:15-22:40

Nonstop1h 25m

€136

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 26/5

19:10-20:35

Nonstop1h 25m

Shannon

Fri 29/5

21:15-22:40

Nonstop1h 25m

€137

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 29/5

19:10-20:35

Nonstop1h 25m

Shannon

Mon 1/6

21:15-22:40

Nonstop1h 25m

€137

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 9/6

09:50-11:20

Nonstop1h 30m

Shannon

Tue 9/6

21:15-22:40

Nonstop1h 25m

€138

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Shannon from

How to get the cheapest flight ticket from London Heathrow Airport to Shannon, Clare

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Shannon, Clare?

What is the cheapest month to fly to Shannon, Clare?

The month of January is another great option to travel to Shannon, Clare, with average flight prices from London Heathrow Airport averaging around €137.

What is the cheapest day to depart on your flight to Shannon, Clare?

The cheapest day to depart on your flight to Shannon, Clare is on a Tuesday when prices can be found for as low as €134. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €171.

What is the cheapest time of day to depart on your flight to Shannon, Clare?

In the morning is the cheapest time of day to fly from London Heathrow Airport to Shannon, Clare when you can find flight prices for as low as €131. Flying to Shannon, Clare in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Shannon, Clare is in the evening when prices are around €171.

What is the cheapest London Heathrow to Shannon flight route?

Fly from London Heathrow to Shannon for the best London Heathrow - Shannon flight prices

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

You are more likely to see cheaper flights to Shannon, Clare from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Shannon, Clare for around €159 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Shannon, Clare from London Heathrow Airport for as low as €131 on momondo.

How have London Heathrow Airport to Shannon, Clare flight prices changed over time?

As of May 2026, prices for London Heathrow Airport to Shannon, Clare flights are approximately 17% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Shannon, Clare

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Shannon, Clare according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Shannon, Clare (LHR to SNN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Shannon, Clare

Best price found

€140

Fastest flight time

1h 25m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Shannon, Clare

1 airport
The best flight deal from London Heathrow Airport to Shannon, Clare found on momondo in the last 72 hours is €140
The fastest flight from London Heathrow Airport to Shannon, Clare takes 1h 25m
Direct flights go from London Heathrow Airport to Shannon, Clare on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights..
There is 1 airport in Shannon, Clare. From London Heathrow Airport there are direct flights to Shannon (SNN).
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Shannon, Clare

  • How far is London Heathrow to Shannon by plane?

    London Heathrow and Shannon are 589.8 km apart from one another. By plane, this route typically takes 1h 25m.

  • When did momondo last update prices for flights from London Heathrow Airport to Shannon Airport?

    Prices for flights from London Heathrow Airport to Shannon Airport are refreshed on a daily basis.

  • How old do you have to be to fly from London Heathrow Airport to Shannon Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Shannon Airport.

  • What documentation or ID do you need to fly to Shannon Airport?

    The required travel and health documents for your Shannon Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Shannon Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Shannon, Clare?

Travelling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Ennis
Tipperary
Killaloe
Nenagh
Lahinch
Adare
Bunratty

Why use momondo?

Why should I use momondo to find a flight deal from London to Shannon?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Shannon from London.

Can I find flights from London to Shannon with flexible booking policies on momondo?

momondo does allow users to show only those flights to Shannon from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Shannon?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Shannon from London.

I’m not ready to book a flight from London to Shannon right now. Can momondo alert me if prices change?

Price alerts on flights to Shannon from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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