$64 Cheap Flights from London (LHR) to Shannon (SNN)

View $64 flight on Sun, Nov 9, 2025Opens in a new window

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

Cheap Flights from London to Shannon (LHR-SNN)

Prices were available within the past 7 days and start at $64 for one-way flights and $129 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Mon, Nov 3 - Tue, Nov 4
LHR
London
SNN
Shannon
$129 Roundtrip, found 2 hours ago
$129
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Mon, Nov 3 from London to Shannon, returning Tue, Nov 4, priced at $129 found 2 hours ago
Aer Lingus
Thu, Nov 13 - Tue, Nov 18
LHR
London
SNN
Shannon
$130 Roundtrip, found 1 day ago
$130
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Thu, Nov 13 from London to Shannon, returning Tue, Nov 18, priced at $130 found 1 day ago
Aer Lingus
Mon, Nov 3 - Tue, Nov 4
LHR
London
SNN
Shannon
$147 Roundtrip, found 2 hours ago
$147
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Mon, Nov 3 from London to Shannon, returning Tue, Nov 4, priced at $147 found 2 hours ago
Aer Lingus
Thu, Nov 13 - Tue, Nov 18
LHR
London
SNN
Shannon
$148 Roundtrip, found 1 day ago
$148
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Thu, Nov 13 from London to Shannon, returning Tue, Nov 18, priced at $148 found 1 day ago
Aer Lingus
Sat, Nov 29 - Sun, Nov 30
LHR
London
SNN
Shannon
$150 Roundtrip, found 1 day ago
$150
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Sat, Nov 29 from London to Shannon, returning Sun, Nov 30, priced at $150 found 1 day ago
Aer Lingus
Tue, Nov 11 - Wed, Nov 12
LHR
London
SNN
Shannon
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Aer Lingus flight, departing Tue, Nov 11 from London to Shannon, returning Wed, Nov 12, priced at $157 just found
Aer Lingus
Thu, Nov 13 - Tue, Nov 18
LHR
London
SNN
Shannon
$157 Roundtrip, found 1 day ago
$157
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Thu, Nov 13 from London to Shannon, returning Tue, Nov 18, priced at $157 found 1 day ago
Aer Lingus
Mon, Nov 3 - Tue, Nov 4
LHR
London
SNN
Shannon
$163 Roundtrip, found 2 hours ago
$163
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Mon, Nov 3 from London to Shannon, returning Tue, Nov 4, priced at $163 found 2 hours ago
British Airways
Tue, Nov 4 - Thu, Nov 6
LHR
London
SNN
Shannon
$290 Roundtrip, found 17 hours ago
$290
Roundtrip
found 17 hours ago
Select British Airways flight, departing Tue, Nov 4 from London to Shannon, returning Thu, Nov 6, priced at $290 found 17 hours ago
Lufthansa
Thu, May 21 - Thu, May 28
LHR
London
SNN
Shannon
$329 Roundtrip, found 3 days ago
$329
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, May 21 from London to Shannon, returning Thu, May 28, priced at $329 found 3 days ago

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

March is typically the cheapest month to fly

From $101 - $196 per traveler.

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 center is 7 minutes. Flights from $130
SNN
Shannon Airport
CheapestClosest
Average driving time to city center7 min
Flights from $130
Flights from London (LHR) to Shannon (SNN)
Origin airport
Heathrow
Destination airport
Shannon
Airlines serving
Aer Lingus, British Airways, Lufthansa
Roundtrip price
$129
Distance
369 mi
Average flight time
1 hour 26 mins

London to Shannon Flights

The cheapest times to fly from London to Shannon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Shannon are during the month of November. You can find some of the cheapest flights from London to Shannon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Shannon

Sunday is one of the best days to book for cheap flights from London to Shannon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Shannon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Shannon in 2025. You can also book with separate airlines for your outbound and return journeys, from $64 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Shannon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Shannon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Shannon Airport (SNN) cost?
Secure a cheap one-way flight from $64 or cheap return flight from $129 from Heathrow Airport (LHR) to Shannon Airport (SNN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Shannon Airport (SNN)?
The cheapest month to fly from LHR to SNN is November, when there's less demand. Off-peak season is usually when better flight deals are available between these airports.
Which airlines fly direct from Heathrow Airport (LHR) to Shannon Airport (SNN)?
If you're departing from Heathrow Airport (LHR), you can hop on a direct flight to Shannon Airport (SNN) with Aer Lingus.
What is the cheapest airline that flies from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from LHR to SNN. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Heathrow Airport (LHR) to Shannon Airport (SNN)?
With, on average, 2 nonstop flights departing from Heathrow Airport (LHR) to Shannon Airport (SNN) daily, you'll be up in the air in no time.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Flights between LHR and SNN are their busiest at 10 AM. If you're after a more relaxed experience and possibly cheaper tickets, look for a departure that's outside typical rush times.
What day of the week has the most flights from LHR to SNN?
Fly on a Thursday if you're searching for the biggest selection of flights from Heathrow Airport (LHR) to Shannon Airport (SNN).
What is the earliest flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Catch the earliest flight at around 10:00AM UTC+0, heading out of Heathrow Airport (LHR). You'll be traveling for approximately 1h 30m, reaching Shannon Airport (SNN) at approximately 11:30AM UTC+0.
How long does it take to fly from Heathrow Airport (LHR) to Shannon Airport (SNN)?
The average flight duration from LHR to SNN is 1 hour and 25 minutes, covering a distance of 370 mi.
What is the best time to fly from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Opt for a flight from Heathrow Airport (LHR) to Shannon Airport (SNN) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Shannon from Heathrow Airport (LHR)?
Shannon Airport (SNN) is the only airport in Shannon with direct flights from Heathrow Airport (LHR). Browse your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Shannon Airport (SNN) last-minute?
Booking your plane ticket from LHR to SNN just before your journey is generally more expensive. However, if there's some wiggle room with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a LHR to SNN flight and hotel package?
You can save money by booking a LHR to SNN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After selecting your ideal accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
In most cases, you're able to reschedule or cancel your LHR to SNN flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need further details, go to our Customer Service portal.

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*Available to One Key members.