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Cheap flights from London Heathrow Airport to Shannon from £46

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 14/1. 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
18:05 - 19:25
LHR
-
SNN
1h 20mdirect
Aer Lingus Logo
17:25 - 18:50
SNN
-
LHR
1h 25mdirect
£85Aer Lingus
Wed, 14 Jan - Sat, 24 Jan
Aer Lingus Logo
15:15 - 16:45
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£90Aer Lingus
Thu, 1 Jan - Thu, 15 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£93Aer Lingus
Mon, 19 Jan - Fri, 23 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
07:50 - 09:15
SNN
-
LHR
1h 25mdirect
£94Aer Lingus
Wed, 14 Jan - Wed, 21 Jan
Aer Lingus Logo
14:15 - 15:45
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
07:50 - 09:15
SNN
-
LHR
1h 25mdirect
£95Aer Lingus
Sat, 17 Jan - Sun, 18 Jan
Aer Lingus Logo
18:05 - 19:25
LHR
-
SNN
1h 20mdirect
Aer Lingus Logo
07:50 - 09:15
SNN
-
LHR
1h 25mdirect
£96Aer Lingus
Thu, 8 Jan - Sun, 11 Jan
Aer Lingus Logo
18:05 - 19:25
LHR
-
SNN
1h 20mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£102Aer Lingus
Mon, 12 Jan - Tue, 13 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
17:25 - 18:50
SNN
-
LHR
1h 25mdirect
£109Aer Lingus
Sun, 11 Jan - Sat, 17 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£114Aer Lingus
Sun, 18 Jan - Thu, 22 Jan
Aer Lingus Logo
10:00 - 11:30
LHR
-
SNN
1h 30mdirect
Aer Lingus Logo
20:05 - 21:25
SNN
-
LHR
1h 20mdirect
£117Aer Lingus
Sat, 3 Jan - Sun, 11 Jan

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
1 Jan
LHR15:15London Heathrow
1h 30m
SNN16:45Shannon
15 Jan
SNN20:05Shannon
1h 20m
LHR21:25London Heathrow
£90
Find similar
Aer Lingus
19 Jan
LHR10:00London Heathrow
1h 30m
SNN11:30Shannon
23 Jan
SNN20:05Shannon
1h 20m
LHR21:25London Heathrow
£93
Find similar
Aer Lingus
5 Jan
LHR18:05London Heathrow
1h 20m
SNN19:25Shannon
6 Jan
SNN20:05Shannon
1h 20m
LHR21:25London Heathrow
£94
Find similar

British Airways flights from London Heathrow Airport to Shannon, Clare

Our best British Airways deals on London Heathrow Airport to Shannon, Clare flight tickets
British Airways
18 Dec
LHR15:15London Heathrow
1h 30m
SNN16:45Shannon
22 Dec
SNN20:05Shannon
1h 20m
LHR21:25London Heathrow
£253
Find similar
British Airways
18 Dec
LHR15:15London Heathrow
1h 30m
SNN16:45Shannon
21 Dec
SNN20:05Shannon
1h 20m
LHR21:25London Heathrow
£274
Find similar
British Airways
21 Dec
LHR10:00London Heathrow
1h 30m
SNN11:30Shannon
26 Dec
SNN20:05Shannon
1h 20m
LHR21:25London Heathrow
£401
Find similar

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 279,928 searches. Data last updated 18 December 2025.
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

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Wed 14/1

18:05-19:25

Nonstop1h 20m

Shannon

Sat 24/1

17:25-18:50

Nonstop1h 25m

£85

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 1/1

15:15-16:45

Nonstop1h 30m

Shannon

Thu 15/1

20:05-21:25

Nonstop1h 20m

£90

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Mon 19/1

10:00-11:30

Nonstop1h 30m

Shannon

Fri 23/1

20:05-21:25

Nonstop1h 20m

£93

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Wed 14/1

10:00-11:30

Nonstop1h 30m

Shannon

Wed 21/1

07:50-09:15

Nonstop1h 25m

£94

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 17/1

14:15-15:45

Nonstop1h 30m

Shannon

Sun 18/1

07:50-09:15

Nonstop1h 25m

£95

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 8/1

18:05-19:25

Nonstop1h 20m

Shannon

Sun 11/1

07:50-09:15

Nonstop1h 25m

£96

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Mon 12/1

18:05-19:25

Nonstop1h 20m

Shannon

Tue 13/1

20:05-21:25

Nonstop1h 20m

£102

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sun 11/1

10:00-11:30

Nonstop1h 30m

Shannon

Sat 17/1

17:25-18:50

Nonstop1h 25m

£109

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sun 18/1

10:00-11:30

Nonstop1h 30m

Shannon

Thu 22/1

20:05-21:25

Nonstop1h 20m

£114

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 3/1

10:00-11:30

Nonstop1h 30m

Shannon

Sun 11/1

20:05-21:25

Nonstop1h 20m

£117

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 cheapest month to fly to Shannon, Clare?

In general, January is the cheapest month to fly from London Heathrow Airport to Shannon, Clare. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £78. If you’re not able to fly to Shannon, Clare in January, then March is your next best option. Flight prices from London Heathrow Airport to Shannon, Clare during March average around £108.

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

According to our data, Thursday is the cheapest day to fly to Shannon, Clare from London Heathrow Airport. The lowest ticket price found for a Thursday departure recently was £93. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from London Heathrow Airport to Shannon, Clare on a Sunday will generally be more expensive and average around £151. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest London Heathrow Airport to Shannon, Clare flights are usually those with departure times in the afternoon. Our users have found flights to Shannon, Clare in the afternoon for as low as £79. Flights to Shannon, Clare are more costly in the morning, with an average ticket price of £128. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 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 £130 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 £108 on momondo.

What cabin class options are available on London Heathrow to Shannon flights?

There are 2 cabin classes available to choose from on London Heathrow to Shannon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of December 2025, prices for London Heathrow Airport to Shannon, Clare flights are approximately 27% 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

£343

Fastest flight time

1h 20m

Direct flights

Every day

Airports in Shannon, Clare

1 airport
The best one-way flight to Shannon, Clare from London Heathrow Airport in the past 72 hours is £343. The best return flight deal from London Heathrow Airport to Shannon, Clare found on momondo in the last 72 hours is £172.
The fastest flight from London Heathrow Airport to Shannon, Clare takes 1h 20m
Direct flights go from London Heathrow Airport to Shannon, Clare every day.
There is 1 airport in Shannon, Clare. From London Heathrow Airport there are direct flights to Shannon (SNN).
Search flight deals

  • How far is London Heathrow to Shannon by plane?

    The straight-line distance from London Heathrow to Shannon is 366.5 mi. Typically, this will take 1h 20m by plane in normal conditions.

  • 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 many operators does momondo search for flights from London Heathrow Airport to Shannon Airport?

  • 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 travel and health documents required for your trip to Shannon Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Shannon Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from London Heathrow Airport to Shannon, Clare

Compare and see reviews for airlines that fly from London Heathrow Airport to Shannon, Clare with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £22Free CancellationRating
6.8
5,222 reviews
Search Ryanair flights
Aer LingusPriceFrom £82Free CancellationRating
7.2
1,395 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From London Heathrow Airport to Shannon, Clare

    Aer Lingus flight deals from London Heathrow Airport to Shannon, Clare start from £82 round-trip. Over the 19 Aer Lingus flights for this route in a normal week, average airfare is usually £137 round-trip - but some users have found much cheaper deals with momondo.

Travelling to a place near Shannon?

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

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?

Yes. All flights to Shannon from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

If you are not ready to book a flight from London to Shannon now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Shannon and let you know when they change.

An easier way to manage your Shannon, Clare trip

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