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SNN - LHR

€108 Find cheap flights from Shannon to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Shannon to Heathrow departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Shannon to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Shannon to London, as well as popular online travel agencies
In the last 7 days, travellers have searched 46,397,547 times on KAYAK, and here's why:

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Cheap flight deals from Shannon to London Heathrow Airport (SNN-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Shannon to London Heathrow Airport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
21:25 - 22:40SNN-LHR
1h 15mdirect
18:10 - 07:55LHR-SNN
13h 45m2 stops
€187
Find Deal
Fri, 20 Sep - Tue, 24 Sep
21:25 - 22:40SNN-LHR
1h 15mdirect
19:10 - 20:35LHR-SNN
1h 25mdirect
€188
Find Deal
Thu, 3 Oct - Sun, 6 Oct
17:30 - 18:55SNN-LHR
1h 25mdirect
19:10 - 20:35LHR-SNN
1h 25mdirect
€213Aer Lingus
Find Deal
Sat, 21 Sep - Mon, 23 Sep
07:10 - 20:20SNN-LHR
13h 10m2 stops
09:50 - 11:20LHR-SNN
1h 30mdirect
€232Aer Lingus
Find Deal
Thu, 3 Oct - Thu, 10 Oct
21:25 - 22:40SNN-LHR
1h 15mdirect
14:45 - 16:10LHR-SNN
1h 25mdirect
€243British Airways
Find Deal
Fri, 4 Oct - Sun, 6 Oct
16:55 - 18:20SNN-LHR
1h 25mdirect
09:50 - 11:20LHR-SNN
1h 30mdirect
€245British Airways
Find Deal
Fri, 4 Oct - Mon, 7 Oct
13:45 - 08:05SNN-LHR
18h 20m1 stop
09:45 - 05:35LHR-SNN
19h 50m1 stop
€7,967American Airlines
Find Deal
Thu, 26 Sep - Sun, 29 Sep
13:45 - 09:25SNN-LHR
19h 40m1 stop
09:45 - 05:35LHR-SNN
19h 50m1 stop
€7,988American Airlines
Find Deal
Sat, 21 Sep - Mon, 23 Sep
12:30 - 06:20SNN-LHR
17h 50m1 stop
18:00 - 10:30LHR-SNN
16h 30m1 stop
€12,006United Airlines
Find Deal
Fri, 4 Oct - Mon, 7 Oct
12:30 - 07:10SNN-LHR
18h 40m1 stop
16:00 - 10:30LHR-SNN
18h 30m1 stop
€12,039United Airlines
Find Deal
Fri, 4 Oct - Sun, 6 Oct

Flights from Shannon to Heathrow - Travel Insights & Trends

Get data-powered insights and trends into flights from Shannon to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Shannon to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Shannon to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Shannon to London Heathrow Airport is January, where tickets cost €108 on average. On the other hand, the most expensive months are August and July, where the average cost of tickets is €168 and €163 respectively.

Can I save money by flying with a stopover from Shannon to London Heathrow Airport?

The average price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of €652, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Shannon to London Heathrow Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Shannon to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Shannon to London Heathrow Airport, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 111 days before departure.

Good to know

Low season

November

High season

April

Cheapest flight

€108
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (5% more expensive on average)
Flight from Shannon to London Heathrow Airport

When to book flights from Shannon to Heathrow

Are your dates flexible? Find out the best times to travel from Shannon to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Shannon to London Heathrow Airport flights

  • What is the cheapest flight from Shannon to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Shannon to London Heathrow Airport was €120 for a one-way ticket and €208 for a return.

  • Which airports will I be using when flying from Shannon to London Heathrow Airport?

    On your way to London Heathrow Airport, you’ll fly out from Shannon. You’ll be landing at London Heathrow.

  • Which aircraft models fly most regularly from Shannon to London Heathrow Airport?

    The Airbus A321neo is the aircraft model that flies most regularly on the Shannon to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Shannon to London Heathrow Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Shannon and London Heathrow Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Shannon to London Heathrow Airport?

    There are direct flights from Shannon to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Shannon to London, Aer Lingus or British Airways?

    The two airlines most popular with KAYAK users for flights from Shannon to London are Aer Lingus and British Airways. With an average price for the route of €140 and an overall rating of 7.2, Aer Lingus is the most popular choice. British Airways is also a great choice for the route, with an average price of €192 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Shannon to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Shannon to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Shannon to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Shannon is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Shannon to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Shannon with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Shannon to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Shannon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Shannon to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for €109 or less one-way and €284 or less round-trip.

Prefer to fly direct from Shannon to London Heathrow?

Find which airlines fly direct from Shannon Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Shannon to London Heathrow

Monday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Thursday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Friday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Saturday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Sunday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

See more direct flights

Direct returns

London Heathrow to Shannon

Monday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Thursday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Friday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Saturday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

Sunday

Aer Lingus, Air Canada, American Airlines, +2 more

Aer Lingus, Air Canada, +3 more

See more direct flights
See more direct flights

Top airlines flying from Shannon to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Shannon to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Shannon to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1141 reviews
6.5Food
7.1Comfort
7.3Boarding
8.0Crew
6.9Entertainment
Airline reviews

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

10.0 ExcellentBarton, Aug 2024DUB - SFO
Read more Aer Lingus reviews

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Great customer service. Frequent updates from the pilot. Smooth flight. Good entertainment. Meal service.

The flight got us safely from point a to point b and on time. For a transatlantic flight that isnt nothing. Flight crew was kind and professional. The seats are super uncomfortable (worse than domestic budget airlines) and the cabin was DIRTY.

Plane could have been cleaner. There were many crumbs and crud around the seat mounts.

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Short flight so not much to rate. Surprised I had to pay for a soda.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

why couldn't BA confirm my flight from Milan to Phoenix on AA

I’ll fly with any other airline. Besides all the fees and not being able to change a flight even to a later flight without paying £150 charge. Or that the last flight the WiFi didn’t work, the food was so bad, and ran out of options. Seat didn’t recline. And the headset jack didn’t work. This isn’t my first flight with them, and on every flight there is always something wrong that makes the long 10 hours feel like an eternity. Never flying them again.

On this flight I was in BA business class. I am used to flying United Airlines Polaris class and I was underwhelmed by BA’s business suite class. A few things: - the lounge at LAS was very basic and crowded and the LHR/T3 lounge a bit better, but still not like the Polaris lounges - boarding was chaotic, no one knew what group was supposed to board - the suites were nice, but the padding was not really made for sleeping on - crew were friendly, but only really one tray/serving for the dinner service. None of “drink first, then dinner with 1-2 pourings of wine, then dessert”. UA might not be known for the best service in the industry, but compared to BA they are super attentive. During the BA flight there was no one checking in on you after you got your one tray. - arrival at LHR was busses taking us back to the terminal, surprising for a long flight. Once again chaotic. The bus for First/Business was completely packed with anyone who could get on and the driver was screaming at passengers to get every inch packed before he drove to the terminal. By the time I arrived I felt like BA had sold me a superior flight experience and delivered a mediocre economy class experience just because they can and do not really care about their customers. Very disappointing.

Flight left late and we missed our connection in London requiring an 8 hour wait in Heathrow for the next available flight. One of flight attendants was not helpful with my husband’s necessary crutches.

Pretty good flight in general. Connection in London was extremely slow. The security was slow and understaffed. It took 35 minutes to get through and it was not even crowded.

Sardine can layout in Business Class, where you spend the flight starin st your seat neighbors. nowhere to put a book or phone or anything. How an airline could buy a seat design with such a terrible layout is beyond reason! Clearly the people who bought this mess of a seat design weren’t frequent flyers. I’ve had better experiences on other carrier’s premium economy. Would not recommend. Expensive prices and terrible hard product!

These 777 planes really shouldn’t have 3-4-3 seats in economy. Very little leg room and the aisles were tiny. It was very uncomfortable for a 7 hour flight. (These same planes used to be 3-3-3 for seats until 2018).

The flight was not too long, so entertainment and food were not applicable, but the crew was really nice and kind. The flights left 30 minutes late but either made up the lost time or it was calculated into the flight time, which was very important for people who connected to another flight at that huge airport.

The issue wasn’t necessarily with British Airlines but was a reaction to their delayed flight from Miami to London on Aug 18. Due to the delay out of Miami, we missed our BA flight with Aer Linguis on the 19th from London to Cork, Ireland. The attendant in London was helpful and rebooked us for a flight later that same day ($120). However, she failed to mention that as a result of the missed flight, our returning flight was also cancelled and the rebooking cost was $451. Disappointed at the lack of communication between airlines and between the agent and the customer.

American Airlines is the worst airline to fly. you can’t get on an earlier flight if you don’t have ‘status’, they cancel their flights with no warning, and they lie about why their flights are delayed so they don’t have to pay for meals or hotels. They lost me as a customer after this trip. I’ll be flying Delta or Untied from now on.

Book cheap flights from Shannon to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Shannon to London found on KAYAK in the last 72 hours.
11/10Fri
2 stops
44h 30mSNN-LHR
€108
26/9Thu
directBritish Airways
1h 15mSNN-LHR
€111
18/9Wed
directBritish Airways
1h 25mSNN-LHR
€112
23/10Wed
2 stops
13h 15mSNN-LHR
€114
23/10Wed
1 stop
12h 05mSNN-LHR
€115
16/11Sat
2 stops
13h 55mSNN-LHR
€122
9/10Wed
1 stopJetBlue
16h 45mSNN-LHR
€925
5/10Sat
1 stopJetBlue
16h 45mSNN-LHR
€1,281
18/9Wed
1 stopUnited Airlines
23h 00mSNN-LHR
€4,068
12/9Thu
1 stopUnited Airlines
26h 15mSNN-LHR
€4,074

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Last minute flights from Shannon to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Shannon to London that are departing in the next 10 days.
9/9Mon
directAer Lingus
1h 15mSNN-LHR
16/9Mon
directAer Lingus
1h 25mLHR-SNN
€147
9/9Mon
directAer Lingus
1h 15mSNN-LHR
12/9Thu
directAer Lingus
1h 30mLHR-SNN
€164
9/9Mon
direct
1h 15mSNN-LHR
16/9Mon
multi-stop
15h 35mLHR-SNN
€270
9/9Mon
direct
1h 15mSNN-LHR
12/9Thu
multi-stop
12h 10mLHR-SNN
€327
9/9Mon
multi-stop
4h 35mSNN-LHR
16/9Mon
multi-stop
15h 35mLHR-SNN
€627
9/9Mon
multi-stop
4h 35mSNN-LHR
12/9Thu
multi-stop
12h 10mLHR-SNN
€639
7/9Sat
directBritish Airways
1h 25mSNN-LHR
11/9Wed
directBritish Airways
1h 25mLHR-SNN
€853
7/9Sat
directBritish Airways
1h 25mSNN-LHR
11/9Wed
multi-stopBritish Airways
15h 10mLHR-SNN
€1,220
9/9Mon
multi-stopAer Lingus
28h 05mSNN-LHR
12/9Thu
directAer Lingus
1h 30mLHR-SNN
€1,320
7/9Sat
multi-stopAmerican Airlines
18h 20mSNN-LHR
11/9Wed
multi-stopAmerican Airlines
15h 10mLHR-SNN
€7,967

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Everything you need to know for your flight from Shannon to Heathrow

Information on your arrival and departure airports