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£46 Cheap Flights from London (LHR) to Shannon (SNN)

View £46 flight on Thu, 26 Nov 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £46 for one-way flights and £85 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Thu, 5 Nov - Sun, 8 Nov
LHR
London
SNN
Shannon
£85 Return, found 6 hours ago
£85
Return
found 6 hours ago
Select Aer Lingus flight, departing Thu, 5 Nov from London to Shannon, returning Sun, 8 Nov, priced at £85 found 6 hours ago
Aer Lingus
Thu, 26 Nov - Fri, 27 Nov
LHR
London
SNN
Shannon
£86 Return, just found
£86
Return
just found
Select Aer Lingus flight, departing Thu, 26 Nov from London to Shannon, returning Fri, 27 Nov, priced at £86 just found
Aer Lingus
Thu, 5 Nov - Sun, 8 Nov
LHR
London
SNN
Shannon
£90 Return, found 6 hours ago
£90
Return
found 6 hours ago
Select Aer Lingus flight, departing Thu, 5 Nov from London to Shannon, returning Sun, 8 Nov, priced at £90 found 6 hours ago
Aer Lingus
Mon, 21 Sept - Mon, 28 Sept
LHR
London
SNN
Shannon
£92 Return, found 14 hours ago
£92
Return
found 14 hours ago
Select Aer Lingus flight, departing Mon, 21 Sept from London to Shannon, returning Mon, 28 Sept, priced at £92 found 14 hours ago
Aer Lingus
Fri, 16 Oct - Sun, 18 Oct
LHR
London
SNN
Shannon
£94 Return, just found
£94
Return
just found
Select Aer Lingus flight, departing Fri, 16 Oct from London to Shannon, returning Sun, 18 Oct, priced at £94 just found
Aer Lingus
Sun, 27 Sept - Tue, 29 Sept
LHR
London
SNN
Shannon
£95 Return, found 11 hours ago
£95
Return
found 11 hours ago
Select Aer Lingus flight, departing Sun, 27 Sept from London to Shannon, returning Tue, 29 Sept, priced at £95 found 11 hours ago
Aer Lingus
Thu, 8 Oct - Sun, 11 Oct
LHR
London
SNN
Shannon
£97 Return, just found
£97
Return
just found
Select Aer Lingus flight, departing Thu, 8 Oct from London to Shannon, returning Sun, 11 Oct, priced at £97 just found
Aer Lingus
Thu, 8 Oct - Sun, 11 Oct
LHR
London
SNN
Shannon
£100 Return, just found
£100
Return
just found
Select Aer Lingus flight, departing Thu, 8 Oct from London to Shannon, returning Sun, 11 Oct, priced at £100 just found
Lufthansa
Wed, 16 Jun - Sat, 19 Jun
LHR
London
SNN
Shannon
£206 Return, found 3 days ago
£206
Return
found 3 days ago
Select Lufthansa flight, departing Wed, 16 Jun from London to Shannon, returning Sat, 19 Jun, priced at £206 found 3 days ago
British Airways
Fri, 25 Sept - Sun, 27 Sept
LHR
London
SNN
Shannon
£221 Return, just found
£221
Return
just found
Select British Airways flight, departing Fri, 25 Sept from London to Shannon, returning Sun, 27 Sept, priced at £221 just found

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 £147
SNN
Shannon Airport
CheapestClosest
Average driving time to city centre7 min
Flights from £147

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

September is typically the cheapest month to fly

From £82 - £127 per traveller.

Frequently asked questions

How much does a flight from London (LHR) to Shannon (SNN) cost?
You can find one-way and return flights from London (LHR) to Shannon (SNN) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when LHR to SNN ticket fares go up or down.
What is the cheapest month to fly from London (LHR-Heathrow) to Shannon (SNN)?
If you're looking for the cheapest time to fly from London Heathrow (LHR) to Shannon (SNN), October is typically your best bet! You can expect average return fares around £127. October often sees lower prices because it's outside the peak summer travel season, and before the busy Christmas period, meaning less demand and better deals for you. Other budget-friendly months to consider for this route include March and November.
Which airlines fly direct from London (LHR-Heathrow) to Shannon (SNN)?
Only one airline offers direct flights from London Heathrow (LHR) to Shannon (SNN).Aer Lingus operates 20 direct flights from London Heathrow (LHR) to Shannon (SNN) every week.
How do I find cheap flights from London (LHR-Heathrow) to Shannon (SNN)?
To find a cheap flight from London (LHR-Heathrow) to Shannon (SNN), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from London (LHR-Heathrow) to Shannon (SNN)?
The best airline to fly with from London Heathrow (LHR) to Shannon (SNN) will differ from traveler to traveler. If you like to fly early, Aer Lingus offers early morning flights. If price is the most important factor, Aer Lingus typically offers the lowest fares. Lufthansa offers the most daily flights from London Heathrow (LHR) to Shannon (SNN), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from London (LHR) to Shannon (SNN)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LHR-Heathrow) to Shannon (SNN)?
You'll find approximately 3 nonstop flights per day from London Heathrow (LHR) to Shannon (SNN). For even more choices, look at flights that include layovers, as there are around 14 connecting flights per day. Some common connection points include Franz Josef Strauss Intl. (MUC), Hamburg (HAM), and All Airports (BER).
What is the earliest flight from London (LHR-Heathrow) to Shannon (SNN)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from LHR to SNN. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LHR-Heathrow) to Shannon (SNN)?
You'll generally find the most flights from London (LHR-Heathrow) to Shannon (SNN) on a Thursday, with around 11 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Aer Lingus, Lufthansa, and Eurowings. Thursdays offer notably more flight options compared to other days of the week, making it a convenient day to fly.
What are the most popular departure times for flights from London (LHR-Heathrow) to Shannon (SNN)?
The most popular departure times for flights from London Heathrow (LHR) to Shannon (SNN) are in the evening, from 6pm to 9pm. Many major carriers, including Lufthansa, Aer Lingus and Eurowings, offer flights during this window. Many travellers prefer this timing as it allows for a full day of activities before an evening flight, and you'll arrive in Shannon at a reasonable hour.
How long does it take to fly from London (LHR-Heathrow) to Shannon (SNN)?
A non-stop flight from London Heathrow (LHR) to Shannon (SNN) typically takes around 1 hour 30 minutes. This route covers a distance of approximately 594 kilometers. If you opt for a flight with one stop, your journey will be significantly longer, usually around 19 hours 30 minutes, due to the layover. Flights with two or more stops are even longer, averaging about 24 hours 30 minutes. Keep in mind that actual flight times can vary based on factors like wind patterns and air traffic.
Can you fly business or first class from London (LHR-Heathrow) to Shannon (SNN)?
You can fly business class between LHR and SNN. Airlines that offer business class service on this route include:
  • Lufthansa
  • Med View Airlines
  • Eurowings
  • Elf Air
How do I earn miles on a London (LHR-Heathrow) to Shannon (SNN) flight with Expedia?
It's easy to earn miles on a London (LHR-Heathrow) to Shannon (SNN) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from London (LHR-Heathrow) to Shannon (SNN) at the last minute?
Typically, booking a last minute flight from London (LHR-Heathrow) to Shannon (SNN) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR-Heathrow) to Shannon (SNN) flight and hotel package?
Securing a London (LHR-Heathrow) to Shannon (SNN) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR-Heathrow) to Shannon (SNN)?
If you booked your London (LHR-Heathrow) to Shannon (SNN) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Heathrow
Destination airport
Shannon
Airlines serving
Aer Lingus, British Airways, Lufthansa
Return price
£85
Distance
590 km
Average flight time
1 hour 28 mins

Book with confidence

Compare flights from London to Shannon easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Shannon. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Shannon in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Shannon.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Shannon (SNN)

The easiest way to view the best deals on flights from London to Shannon today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Shannon start at just £85 and range up to £221.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Shannon
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Shannon flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Shannon for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from London to Shannon easily and book with confidence

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*Available to Expedia members.