SNN - LHR

€81 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 8/6. 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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Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
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 41,299,237 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 return 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.

Recent return flight deals from Shannon to Heathrow

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Shannon to Heathrow.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
17:30 - 18:55SNN-LHR
1h 25mdirect
09:05 - 14:45LHR-SNN
5h 40m1 stop
€183
Find Deal
Thu, 9 Jan - Thu, 16 Jan
20:05 - 21:25SNN-LHR
1h 20mdirect
21:00 - 20:00LHR-SNN
23h 00m1 stop
€186
Find Deal
Mon, 13 Jan - Fri, 17 Jan
17:25 - 18:50SNN-LHR
1h 25mdirect
15:20 - 16:45LHR-SNN
1h 25mdirect
€187Aer Lingus
Find Deal
Sat, 22 Feb - Sun, 23 Feb
20:05 - 21:25SNN-LHR
1h 20mdirect
09:05 - 20:00LHR-SNN
10h 55m1 stop
€190
Find Deal
Tue, 7 Jan - Sat, 18 Jan
07:45 - 09:15SNN-LHR
1h 30mdirect
20:50 - 13:50LHR-SNN
17h 00m2 stops
€194
Find Deal
Tue, 21 Jan - Thu, 23 Jan
17:30 - 18:55SNN-LHR
1h 25mdirect
15:20 - 16:45LHR-SNN
1h 25mdirect
€197Aer Lingus
Find Deal
Fri, 17 Jan - Sun, 19 Jan
17:30 - 18:55SNN-LHR
1h 25mdirect
10:00 - 11:30LHR-SNN
1h 30mdirect
€250British Airways
Find Deal
Thu, 9 Jan - Sun, 12 Jan
17:30 - 18:55SNN-LHR
1h 25mdirect
10:00 - 11:30LHR-SNN
1h 30mdirect
€251British Airways
Find Deal
Thu, 9 Jan - Fri, 17 Jan
14:45 - 07:50SNN-LHR
17h 05m1 stop
11:25 - 06:15LHR-SNN
18h 50m1 stop
€8,108American Airlines
Find Deal
Sat, 28 Dec - Mon, 30 Dec
14:45 - 05:55SNN-LHR
15h 10m1 stop
10:35 - 06:15LHR-SNN
19h 40m1 stop
€8,132American Airlines
Find Deal
Thu, 9 Jan - Mon, 13 Jan

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’s the cheapest day of the week to fly from Shannon to London Heathrow Airport?

The average price of all round-trip flights from Shannon to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to London Heathrow Airport on a Tuesday and more expensive on a Saturday. On your return trip to Shannon, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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 round-trip 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 €122 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is €180 and €173 respectively.

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

The average return 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 €147, 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 weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.
To get a below average price on the flight from Shannon to London Heathrow Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low season

May

High season

April

Cheapest flight

€81
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (2% 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 €85 for a one-way ticket and €192 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 €149 and an overall rating of 7.1, Aer Lingus is the most popular choice. British Airways is also a great choice for the route, with an average price of €204 and an overall rating of 6.6.

  • 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 €70 or less one-way and €131 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.
7.1
Aer LingusOverall score based on 1078 reviews
6.8Entertainment
7.3Boarding
8.0Crew
7.0Comfort
6.4Food
Airline reviews

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

2.0 MediocreValerie, Dec 2024DUB - BCN
Read more Aer Lingus reviews

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

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.

This was a HORRIBLE experience. I booked a two-leg flight from Reykjavik to Istanbul. My first flight ran 3 hours late and I then missed my flight to Istanbul. British Airways put me on a Turkish Airlines flight to Istanbul. No harm done, right? Wrong. The Turkish Airlines flight turned out to be overbooked. By the time I learned of this, British Airways closed their help desk. To add insult to injury, they helped one person in front of me before casually putting up a closed sign even though they knew I was stranded (their fault!) and needed help. I ended up spending $1000+ out of pocket to clean up their mess (including the flight to Johannesburg I had to rebook since BA delayed me so much) and haven’t heard a word about reimbursement. I have never had such an awful travel experience in my life. I know delays happen, but they need to take care of their passengers when these things happen, not leave us stranded in a foreign country in the middle of the night with nowhere to go.

The seats are incredibly uncomfortable. My luggage didn't make it on my flight from London to Nashville.

5 days later I have not yet received my luggage so terrible and unacceptable

everything on the flight was a great experience except the food could have been better!

The seats were uncomfy and the food tasteless, crew clueless

Easy and quick check in, clean and nice seats. Overall excellent experience.

My problem was with the onward connection between London Heathrow and Washington IAD. The flight was several times changed.

The A350 is a great plane but BA's seating was incredibly tight (eg compared to the same plane as flown by BA's partner Finnair) and with a middle seat it was very claustrophobic

Flights were on time. Crew was courteous. Food was much better than I expected. Heathrow is a good transit hub - great selection at the duty free.

The seats in airbus from LA to London are uncomfortable. They are too narrow. I am a slim person but felt cramped. The way the seats are laid out really hinders privacy. You are forced to look at the person next to you which is awkward, Also the entertainment on the same leg was limited. The crew was excellent and attentive and the food was decent. The seats on London to Delhi leg were way better. The crew again was very attentive and polite.

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.
8/6Sun
directAer Lingus
1h 15mSNN-LHR
€81
19/4Sat
directAer Lingus
1h 25mSNN-LHR
€92
30/1Thu
1 stop
5h 20mSNN-LHR
€100
10/6Tue
1 stop
8h 10mSNN-LHR
€103
1/1Wed
1 stop
12h 55mSNN-LHR
€104
29/1Wed
1 stop
15h 15mSNN-LHR
€105
8/6Sun
1 stop
6h 45mSNN-LHR
€107
30/12Mon
directBritish Airways
1h 20mSNN-LHR
€303
16/1Thu
1 stopJetBlue
15h 10mSNN-LHR
€1,007
30/12Mon
1 stopJetBlue
15h 10mSNN-LHR
€1,272

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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.
21/12Sat
directAer Lingus
1h 25mSNN-LHR
24/12Tue
directAer Lingus
1h 25mLHR-SNN
€363
23/12Mon
directBritish Airways
1h 20mSNN-LHR
27/12Fri
directBritish Airways
1h 20mLHR-SNN
€386
22/12Sun
direct
1h 20mSNN-LHR
26/12Thu
multi-stop
6h 15mLHR-SNN
€406
20/12Fri
direct
1h 25mSNN-LHR
21/12Sat
multi-stop
16h 35mLHR-SNN
€478
20/12Fri
directAer Lingus
1h 25mSNN-LHR
21/12Sat
directAer Lingus
1h 30mLHR-SNN
€492
22/12Sun
multi-stop
28h 40mSNN-LHR
26/12Thu
direct
1h 20mLHR-SNN
€1,275
23/12Mon
multi-stopAer Lingus
18h 40mSNN-LHR
27/12Fri
directAer Lingus
1h 20mLHR-SNN
€1,353
20/12Fri
multi-stop
15h 50mSNN-LHR
21/12Sat
multi-stop
20h 10mLHR-SNN
€2,947
20/12Fri
multi-stop
15h 10mSNN-LHR
21/12Sat
multi-stop
17h 05mLHR-SNN
€7,879
23/12Mon
multi-stopAmerican Airlines
28h 10mSNN-LHR
27/12Fri
multi-stopAmerican Airlines
18h 50mLHR-SNN
€8,156

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

Information on your arrival and departure airports

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