£44 Cheap Aer Lingus flights from London to Shannon (LHR→SNN)

View £44 flight on Wed, 15 Oct 2025Opens in a new window
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Aer Lingus flights from London to Shannon (LHR→SNN)

Prices were available within the past 7 days and start at £44 for one-way flights and £90 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Mon, 6 Oct - Wed, 8 Oct
LHR
London
SNN
Shannon
£90 Return, found 4 hours ago
£90
Return
found 4 hours ago
Select Aer Lingus flight, departing Mon, 6 Oct from London to Shannon, returning Wed, 8 Oct, priced at £90 found 4 hours ago
Aer Lingus
Tue, 30 Sept - Wed, 1 Oct
LHR
London
SNN
Shannon
£91 Return, found 2 days ago
£91
Return
found 2 days ago
Select Aer Lingus flight, departing Tue, 30 Sept from London to Shannon, returning Wed, 1 Oct, priced at £91 found 2 days ago
Aer Lingus
Thu, 2 Oct - Tue, 7 Oct
LHR
London
SNN
Shannon
£91 Return, found 4 hours ago
£91
Return
found 4 hours ago
Select Aer Lingus flight, departing Thu, 2 Oct from London to Shannon, returning Tue, 7 Oct, priced at £91 found 4 hours ago
Aer Lingus
Mon, 6 Oct - Wed, 8 Oct
LHR
London
SNN
Shannon
£95 Return, found 4 hours ago
£95
Return
found 4 hours ago
Select Aer Lingus flight, departing Mon, 6 Oct from London to Shannon, returning Wed, 8 Oct, priced at £95 found 4 hours ago
Aer Lingus
Fri, 10 Oct - Mon, 13 Oct
LHR
London
SNN
Shannon
£98 Return, found 2 hours ago
£98
Return
found 2 hours ago
Select Aer Lingus flight, departing Fri, 10 Oct from London to Shannon, returning Mon, 13 Oct, priced at £98 found 2 hours ago
Aer Lingus
Tue, 30 Sept - Mon, 13 Oct
LHR
London
SNN
Shannon
£99 Return, found 14 hours ago
£99
Return
found 14 hours ago
Select Aer Lingus flight, departing Tue, 30 Sept from London to Shannon, returning Mon, 13 Oct, priced at £99 found 14 hours ago
Flight from London to Shannon route information
Origin airport
Heathrow
Destination airport
Shannon
Airlines serving
Aer Lingus, British Airways
Popular airline
Aer Lingus
Distance
590 km
Average flight time
1 hour 28 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 £90 from LHR to SNN. Affordable one-way tickets from £44 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 kg (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 kg (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.
*Available to Expedia members.