A coastal cliff with a person standing on the edge, overlooking the sea during sunset.

₩215,500 Cheap Flights from London (LHR) to Shannon (SNN)

View ₩215,500 flight on Wed, Dec 30, 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Shannon Airport (SNN)

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Cheap Flights from London to Shannon (LHR-SNN)

Prices were available within the past 7 days and start at ₩215,500 for one-way flights and ₩396,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩396,300 Roundtrip, found 2 hours ago
₩396,300
Roundtrip
found 2 hours ago
Select British Airways flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩396,300 found 2 hours ago
Aer Lingus
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩401,100 Roundtrip, found 2 hours ago
₩401,100
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩401,100 found 2 hours ago
Aer Lingus
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩405,500 Roundtrip, found 2 hours ago
₩405,500
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩405,500 found 2 hours ago
Aer Lingus
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩414,500 Roundtrip, found 2 hours ago
₩414,500
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩414,500 found 2 hours ago
British Airways
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩425,400 Roundtrip, found 2 hours ago
₩425,400
Roundtrip
found 2 hours ago
Select British Airways flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩425,400 found 2 hours ago
British Airways
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩481,800 Roundtrip, found 2 hours ago
₩481,800
Roundtrip
found 2 hours ago
Select British Airways flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩481,800 found 2 hours ago
British Airways
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩510,900 Roundtrip, found 2 hours ago
₩510,900
Roundtrip
found 2 hours ago
Select British Airways flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩510,900 found 2 hours ago
British Airways
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩540,000 Roundtrip, found 2 hours ago
₩540,000
Roundtrip
found 2 hours ago
Select British Airways flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩540,000 found 2 hours ago
Aer Lingus
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩541,700 Roundtrip, found 2 hours ago
₩541,700
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩541,700 found 2 hours ago
American Airlines
Wed, Dec 30 - Sat, Jan 2
LHR
London
SNN
Shannon
₩5,147,200 Roundtrip, found 2 hours ago
₩5,147,200
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Dec 30 from London to Shannon, returning Sat, Jan 2, priced at ₩5,147,200 found 2 hours ago

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

October is typically the cheapest month to fly

From ₩152,753 - ₩268,092 per traveler.

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to Shannon Airport?
If you're planning on traveling from Heathrow Airport (LHR) to SNN, round-trip flights start from ₩396,300. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Heathrow to Shannon Airport?
This differs between airlines, as each has its own set of terms and conditions. Head to the Customer Service Portal, where there are instructions on how to cancel your flight online.
How do I find cheap flights from Heathrow Airport to SNN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for LHR to Shannon Airport (SNN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from London Heathrow to Shannon Airport?
You might not get through a whole movie on this flight — it's just 590 kilometers from Hounslow to Shannon. Find your seat, buckle up and you'll be touching down before long.
Which airlines fly direct from Heathrow Airport to SNN?
A favorite with many travelers, Aer Lingus (EI) operates 82 flights every month from London Heathrow to Shannon Airport. Pick the one that fits with your travel plans and book your fare today.
Are Heathrow Airport (LHR) to SNN flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Heathrow Airport (LHR) to Shannon Airport (SNN) at the last minute could be your ticket to a fantastic deal. However, you might miss out on a flight altogether! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

Travel information

Origin airport
Heathrow
Destination airport
Shannon
Roundtrip price
₩396,300
Distance
590 km
Average flight time
1 hour 28 mins

Book with confidence

London to Shannon Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from London to Shannon will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Shannon.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with LHR to SNN flights that won’t make your bank account wince. Ready to temporarily leave behind London for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SNN with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

London to Shannon Flights
*Available to Expedia members.