S$184 Cheap Flights from London to Shannon

View S$184 flight on Fri, 6 Mar, 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 S$184 for one-way flights and S$336 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Fri, 6 Mar - Sat, 7 Mar
LHR
London
SNN
Shannon
S$336 Return, found 1 day ago
S$336
Return
found 1 day ago
Select Aer Lingus flight, departing Fri, 6 Mar from London to Shannon, returning Sat, 7 Mar, priced at S$336 found 1 day ago
Aer Lingus
Thu, 15 Jan - Sun, 18 Jan
LHR
London
SNN
Shannon
S$345 Return, found 5 days ago
S$345
Return
found 5 days ago
Select Aer Lingus flight, departing Thu, 15 Jan from London to Shannon, returning Sun, 18 Jan, priced at S$345 found 5 days ago
Aer Lingus
Thu, 15 Jan - Sun, 18 Jan
LHR
London
SNN
Shannon
S$350 Return, found 5 days ago
S$350
Return
found 5 days ago
Select Aer Lingus flight, departing Thu, 15 Jan from London to Shannon, returning Sun, 18 Jan, priced at S$350 found 5 days ago
Aer Lingus
Thu, 15 Jan - Sun, 18 Jan
LHR
London
SNN
Shannon
S$363 Return, found 5 days ago
S$363
Return
found 5 days ago
Select Aer Lingus flight, departing Thu, 15 Jan from London to Shannon, returning Sun, 18 Jan, priced at S$363 found 5 days ago
Aer Lingus
Fri, 6 Mar - Sat, 7 Mar
LHR
London
SNN
Shannon
S$364 Return, found 1 day ago
S$364
Return
found 1 day ago
Select Aer Lingus flight, departing Fri, 6 Mar from London to Shannon, returning Sat, 7 Mar, priced at S$364 found 1 day ago
Aer Lingus
Sat, 4 Apr - Fri, 10 Apr
LHR
London
SNN
Shannon
S$367 Return, found 23 hours ago
S$367
Return
found 23 hours ago
Select Aer Lingus flight, departing Sat, 4 Apr from London to Shannon, returning Fri, 10 Apr, priced at S$367 found 23 hours ago
Aer Lingus
Fri, 6 Mar - Sat, 7 Mar
LHR
London
SNN
Shannon
S$369 Return, found 1 day ago
S$369
Return
found 1 day ago
Select Aer Lingus flight, departing Fri, 6 Mar from London to Shannon, returning Sat, 7 Mar, priced at S$369 found 1 day ago
British Airways
Fri, 6 Mar - Sat, 7 Mar
LHR
London
SNN
Shannon
S$370 Return, found 1 day ago
S$370
Return
found 1 day ago
Select British Airways flight, departing Fri, 6 Mar from London to Shannon, returning Sat, 7 Mar, priced at S$370 found 1 day ago
Aer Lingus
Sat, 4 Apr - Fri, 10 Apr
LHR
London
SNN
Shannon
S$372 Return, found 23 hours ago
S$372
Return
found 23 hours ago
Select Aer Lingus flight, departing Sat, 4 Apr from London to Shannon, returning Fri, 10 Apr, priced at S$372 found 23 hours ago
British Airways
Fri, 6 Mar - Sat, 7 Mar
LHR
London
SNN
Shannon
S$374 Return, found 1 day ago
S$374
Return
found 1 day ago
Select British Airways flight, departing Fri, 6 Mar from London to Shannon, returning Sat, 7 Mar, priced at S$374 found 1 day ago

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

March is typically the cheapest month to fly

From S$130 - S$256 per traveller.
London to Shannon route information
Origin airport
Heathrow
Destination airport
Shannon
Airlines serving
Aer Lingus, British Airways
Return price
S$336
Distance
590 km
Average flight time
1 hour 26 mins

Perfect flights from London to Shannon

Your Journey from London to Shannon

Start your unforgettable journey with Expedia. Our broad selection of flights from London to Shannon caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Aer Lingus, British Airways, Lufthansa. Our selection of flights from Heathrow to Shannon caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with London to Shannon Flights

Experience the joy of finding cheap flights from Heathrow to Shannon that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$184 and roundtrip prices from S$336*.
 

Pre-Flight Essentials

Ensure a smooth journey from London to Shannon with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Shannon

Picture yourself stepping off the plane in Shannon and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your London to Shannon Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from London to Shannon.
 

Beyond the Flight – Exploring Shannon

With Expedia, your adventure extends beyond the flight. Explore Shannon at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from London to Shannon with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from London to Shannon with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to Shannon Airport?
If you're planning on travelling from Heathrow Airport (LHR) to SNN, round-trip flights start from S$336. 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 kilometres 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 favourite with many travellers, 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.

Explore a world of travel with Expedia

*Available to Expedia members.