Aer Lingus Cheap Flights from London to Shannon

View €72 flight on Sat, 7 Feb 2026Opens in a new window
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Prices were available within the past 7 days and start at €72 for one-way flights and €123 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Mon, 2 Mar - Mon, 9 Mar
LHR
London
SNN
Shannon
€123 Return, found 2 hours ago
€123
Return
found 2 hours ago
Select Aer Lingus flight, departing Mon, 2 Mar from London to Shannon, returning Mon, 9 Mar, priced at €123 found 2 hours ago
Aer Lingus
Wed, 27 May - Wed, 3 Jun
LHR
London
SNN
Shannon
€125 Return, found 22 hours ago
€125
Return
found 22 hours ago
Select Aer Lingus flight, departing Wed, 27 May from London to Shannon, returning Wed, 3 Jun, priced at €125 found 22 hours ago
Aer Lingus
Fri, 15 May - Sun, 17 May
LHR
London
SNN
Shannon
€134 Return, found 3 days ago
€134
Return
found 3 days ago
Select Aer Lingus flight, departing Fri, 15 May from London to Shannon, returning Sun, 17 May, priced at €134 found 3 days ago
Aer Lingus
Mon, 19 Jan - Mon, 26 Jan
LHR
London
SNN
Shannon
€135 Return, found 1 day ago
€135
Return
found 1 day ago
Select Aer Lingus flight, departing Mon, 19 Jan from London to Shannon, returning Mon, 26 Jan, priced at €135 found 1 day ago
Aer Lingus
Thu, 2 Apr - Mon, 6 Apr
LHR
London
SNN
Shannon
€137 Return, found 2 days ago
€137
Return
found 2 days ago
Select Aer Lingus flight, departing Thu, 2 Apr from London to Shannon, returning Mon, 6 Apr, priced at €137 found 2 days ago
Aer Lingus
Thu, 22 Jan - Sun, 25 Jan
LHR
London
SNN
Shannon
€140 Return, found 16 hours ago
€140
Return
found 16 hours ago
Select Aer Lingus flight, departing Thu, 22 Jan from London to Shannon, returning Sun, 25 Jan, priced at €140 found 16 hours ago

Find the cheapest month to fly from London (LHR) to Shannon (SNN)

March is typically the cheapest month to fly

From €87 - €170 per traveller.

Alternative airports near Shannon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Shannon Airport SNN. Cheapest and Closest option available. Average driving time to city centre is 7 minutes. Flights from €125
SNN
Shannon Airport
CheapestClosest
Average driving time to city centre7 min
Flights from €125
London to Shannon route information
Origin airport
Heathrow
Destination airport
Shannon
Airlines serving
Aer Lingus, British Airways, Lufthansa
Popular airline
Aer Lingus
Distance
590 km
Average flight time
1 hour 26 mins

Frequently asked questions

How much is an Aer Lingus flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Use the "Price (lowest to highest)" filter on Expedia to look for cheap Aer Lingus round-trip flights from €123 from LHR to SNN. Affordable one-way tickets from €72 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LHR to SNN with Aer Lingus?
January is one of the most affordable months to get away to Shannon with Aer Lingus. You could also find great prices on one-way and return fares in February.
Does Aer Lingus fly nonstop from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Hop on one of Aer Lingus's 20 weekly direct flights from Heathrow Airport (LHR) to Shannon Airport (SNN). To see your options, enter your dates, origin and destination and hit search. Then use the "Nonstop" and "Airline" filters.
How long does it take to fly from LHR to SNN with Aer Lingus?
It takes around 1h 25m to fly nonstop from Heathrow Airport (LHR) to Shannon Airport (SNN) with Aer Lingus.
Which day of the week has the most Aer Lingus flights from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Aer Lingus has the most flights from Heathrow Airport (LHR) to Shannon Airport (SNN) on Wednesday. With up to 3 daily departures, you'll get the most flexibility on this day.
What airports does Aer Lingus fly into in Shannon?
Aer Lingus flights from Heathrow Airport (LHR) to Shannon land at Shannon Airport (SNN). This is the main gateway here.
What kind of luggage can I take on an Aer Lingus flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
For checked luggage, passengers can take 1 checked-in bag weighing up to 23 kgs (50 lbs) with dimensions not exceeding 157 centimetres. You can also travel with 1 cabin bag in the cabin when flying standard economy from LHR to SNN with Aer Lingus. This carry-on has to weigh less than 10 kgs (22 lbs) and be no larger than 53 centimetres x 38 centimetres x 23 centimetres. Going over these limits can mean additional charges, so read Aer Lingus's baggage allowance policies before you pack.
What type of plane does Aer Lingus fly from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Aer Lingus generally uses Airbus A321neo planes for flights from Heathrow Airport (LHR) to Shannon Airport (SNN). This airline also operates the Airbus A320 on this route. Keep in mind that aircraft type can change depending on operational reasons, so the plane you catch could be different on the day.
Can I change or cancel my Aer Lingus flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
You can usually cancel or modify your flight, although additional fees may apply if your booking was made more than 24 hours ago. Prefer to keep your options open? Make use of Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you have to revise your plans. To update your booking, go to "Trips," select your flight and click on "Manage Booking" for more details.

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