Find Cheap Flights from Shannon to London Heathrow (SNN - LHR)

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Shannon to London Heathrow flight information

Avg. flight duration 1h 30m
Flights arrive in London Heathrow
Flights depart from Shannon
Flight price €137
Distance 593 km
Airlines Aer Lingus

Good to know

Low season:
February
Best time to beat the crowds
3%
expected price decrease
High season:
March
Most popular time to fly
3%
expected price increase
Average price:
€188
(avg. price over the last 2 weeks)
Good deal:
€141
or less (return)

When to Book Flights from Shannon to London Heathrow

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

Looking for a cheap flight? 25% of our users found flights on this route for €140 or less.
The cheapest flight from Shannon to London Heathrow was found, on average, 84 days before departure.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be February, March and April. The cheapest month to fly is February.
Morning departure is around 156% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Shannon to London Heathrow Flights

How long does a flight from Shannon to London Heathrow take?
An average non-stop flight takes 1h 25m, covering a distance of 594 km.
How many flights are there between Shannon and London Heathrow?
There are 150 (non-stop) flights between Shannon and London Heathrow per week, averaging 22 per day.
Which airlines provide the cheapest flights from Shannon to London Heathrow?
In the past 3 days, the cheapest return tickets were found on Aer Lingus (€137)
Which airlines fly most frequently between Shannon and London Heathrow?
Air Canada (4 times daily), Aer Lingus (4 times daily), British Airways (4 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly from Shannon to London Heathrow?
For Shannon to London Heathrow, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from London Heathrow back to Shannon, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Book cheap flights from Shannon to London Heathrow (return)

Airports
Origin
Shannon
€137
only
€137
Destination
London
€137
only
€137
Fri, 22 Mar
SNN
Shannon
LHR
London Heathrow
1h 25m
Mon, 25 Mar
LHR
London Heathrow
SNN
Shannon
1h 25m
€137
Trip: 4 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SEA
DUB
Excellent 8.0

Pros: Great equipment. Decent entertainment, sparsely filled cabin. Seat change to isle request before boarding readily made with no fuss. I noticed that passengers could actually make out pa announcements both at PDX and in flight. Doesn’t bother me anymore when I can’t but can be very concerning to anyone who rarely flies. Never understood going to the trouble of making announcements both pre-boarding & on-board pre-flight, that no one can even make out. That was not an issue here.

Cons: Better lumbar support is always appreciated, adjustable lumbar would be very nice and could make or break an entire flight. No seat on any flight should ever be even the slightest ill repaired. Again, this equipmemt all seemed great. Lastly, since I prefer to always have a water, coke or coffe and or snack in front of me during entire flight, a bit of self serve (grab a water, coffee or snack yourself without having to make staff work a simple task would be nice on every flight. The flight from SEA-DUB was basically great and equipment is always of the utmost importantance.

DUB
BOS
Good 6.6

Pros: The entertainment system has been upgraded on planes I've flown on recently and is very good. Food is normal airline blah, no better no worse.

Cons: The crew are very fussy. Can't wear headphone on takeoff and landing whereas other airlines allow, They charge for alcohol so the drink service takes twice as long while they collect money/credit cards. Constant, constant, constant announcements. Impossible to watch a movie without some interruption. No, I don't care who is chief flight attendant in business class. Towards the end of the flight, they subject you to a charity video. You have to listen/watch. The inflight entertainment is interrupted (again) for this.

EWR
DUB
Excellent 10.0

Pros: The welcome, hospitality and service by the crew were all excellent

SNN
LHR
Excellent 9.6

Pros: Boarding was effortless

Cons: Nothing at this stage.

AMS
DUB
Excellent 10.0

Pros: The whole crew was amazing! Meals were very tasty. The pillow and blanket was a nice touch. We really enjoyed the fact we all had entertainment screens.

Cons: The selection of movies was not very grand.

Sun, 7 Apr
SNN
Shannon
LHR
London Heathrow
1h 35m
Sat, 13 Apr
LHR
London Heathrow
SNN
Shannon
1h 30m
€139
Trip: 7 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
OK 4.6

Cons: Paying for beverages seemed a bit much.

DUB
BRU
Excellent 8.5

Pros: Pilots were very smooth with the controls, especially on landing unlike Ryanair!

SNN
LHR
Good 6.6

Cons: Short flight but had to pay for snacks or drinks on Aer Lingus.

SNN
LHR
OK 5.0

Pros: Ahead is schedule

Cons: Even had to pay for coffee

SNN
LHR
Good 6.0

Pros: We were late for our connecting flight because of a plane issue and no one from the Air Lingus did anything to help us get to our next flight out of London to Munich. We asked several times and they said follow the signs .

Fri, 12 Apr
SNN
Shannon
LHR
London Heathrow
1h 30m
Sun, 14 Apr
LHR
London Heathrow
SNN
Shannon
1h 30m
€147
Trip: 3 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
Excellent 8.0

Pros: took off early once they had accounted for everyone, and arrived a little early too.

Cons: While I didn't have to check my bag on the first longer flight, I did have to check it on the connecting flight which delayed me somewhat in getting into the city of London. Not awful, but strange... Free-for-all when boarding, not nearly as organized as it was at JFK.

BOS
DUB
Good 7.3

Cons: Overall pleasant More pleasant than with some other carriers recently

SNN
LHR
Excellent 8.3

Pros: Nice seats food was decent crew excellent

Cons: Not enough room

SNN
LHR
OK 4.3

Pros: We landed safely.

Cons: Mobile check-in not an option. Seats not available until check-in without paying. Nothing is complimentary on a rather expensive flight.

LHR
DUB
Excellent 10.0

Pros: Good price , good career

Thu, 28 Feb
SNN
Shannon
LHR
London Heathrow
1h 35m
Thu, 28 Mar
LHR
London Heathrow
SNN
Shannon
1h 25m
€153
Trip: 28 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
DUB
PHL
OK 5.0

Cons: See above

DUB
MCO
Good 7.3

Pros: The entertainment was great.

Cons: It was hard coming home since we can't bring any food with meat on the international flight coming back to the USA. Or at least the food I brought, a sandwich was not allowed because of customs. I can't eat the food that was offered. I'm glutten intolerant and dairy involerant. Not sure there's a whole lot to do about it besides buy prepackaged food that don't have meat, vegtabjes or fruit. Protien bars may have worked. We brought two bottles of water each from the terminal. I could have used more, even with the drink service. The flight attendants we're having thier own personal conversation while passing out food and ran by when it came to the final trash clean up. When I got up to use the facilities I tried throwing my trash away but was ignored by a crew member while she was resting.

DUB
BOD
Excellent 10.0

Pros: No time... Good service

SNN
LHR
Excellent 8.5

Pros: When I finally settled into my seat on the British Airline and that Hostess came around and offered me a couple of free drinks that was the best thing that happened to me all day.

Cons: For an older couple like us did not like having to climb the steps up into the Plane and being out in the rain did not help. However that was not the worst part of the arrangement between getting off the Aer Lingus plane and with so little time to reach the gate for our BA flight to Denver it was a total disaster. Due to a minor problem my wife had with her foot I had asked for a wheel-chair to be available when we got off the plane at Heatrow. Good job that I did because with out their help we would never have made it in time for your flight to Denver. Between up and down in elevators, running along the corridors, in and out of a bus and I myself trying to catch up with those poor attendants. I was sorry that I did not get a second wheel chair for my self. Only for the flight was delayed by about 20 minutes we would have missed the flight. Who ever was responsible for making the arrangements of just allowing a time of 1 hour and 10 minutes between flights needs to figure out a better time schedule before people of our age ends up getting stressed out and end up with a heart attack. Very stressful indeed, believe I will never let this happen to me again. Fly/Us you need to fix this.

LHR
DUB
Mediocre 2.0

Cons: Lost my luggage

Fri, 3 May
SNN
Shannon
LHR
London Heathrow
1h 35m
Sun, 5 May
LHR
London Heathrow
SNN
Shannon
1h 30m
€159
Trip: 3 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
BOS
DUB
Mediocre 2.0

Cons: The flight was delayed. I suggested I take another flight, they kept on saying we will not be late . Well i missed both connecting flights.

SNN
LHR
Excellent 10.0

Pros: I love Aer Lingus, they appear to be always on time and nice comfy seats. No problem boarding, was nice and quick.

Cons: Nothing to not like at mo.

DUB
ORD
Excellent 10.0

Pros: No problems

DUB
LBA
Mediocre 2.0

Pros: I liked the service once we left Dublin but once it was time to arrive to Leeds everything went downhill.

Cons: Our flight did not land to Leeds but to Manchester. I thought this would not be an issue to get my connecting flight to London. As I tried to explain to the airline attendants about my connecting flight they had no idea what was going on and said it wasn't their issue I would have to go to Leeds and explain to them what was happening. I asked if there was a way we could call them and see if I could just get a flight to London from Manchester. They said no. I tried to get a number to call myself still nothing. They sent everyone from the flight onto a coach bus to Leeds. Once I arrived to Leeds, I spoke with Ben and explained my situation. He said there were no more flights to London or anywhere near there. And there wasn't any flights to Austin, TX which was my end point either. He explained there wasn't anything they could do except fly me in the morning to London. I agreed but then come to find out he had to send me back to Manchester. Now I had already had my arrangements to stay in London for the night so I did not have much money left. He said they would take care of the accommodations and the flight to London. I was VERY PATIENT. Within this he was telling me how close they were to closing. I explained I needed everything in place before they even left because I was traveling alone in an unknown country or city. He arranged a cab to take me back to Manchester and a hotel to stay in with dinner and breakfast available. I thought everything would get better but of course it didn't. Ben clearly knew I had my checked bag and carry on. When I'm about to board the flight to London they charged me 60 pounds for my CHECKED BAG. Now this was already included on flight to begin with if all of this had not happened. The attendant did not want to listen to my story and kept passing me to another attendant that said there's nothing they could do. I had to pay since I couldn't leave my belongings. Once i arrived to London. I had to get my bag and RECHECK IN MY BAG. AGAIN they tried to charge me for my checked bag. This time I had enough of your airline and explained it was all included in my flight and I went on a rant with the attendant. He just stared and printed out the ticket for my bag. Didn't look at the computer. Didn't even explain why it's all of sudden taken care of that I don't have to pay anymore. I had no patience to hear his excuse but just wanted to get back home. This has been the worst experience I have ever had with an airline. Frontier isn't even this unorganized. Shouldn't there be a process for these kind of situations already?

DUB
MCO
Good 7.3

Pros: The entertainment was great.

Cons: It was hard coming home since we can't bring any food with meat on the international flight coming back to the USA. Or at least the food I brought, a sandwich was not allowed because of customs. I can't eat the food that was offered. I'm glutten intolerant and dairy involerant. Not sure there's a whole lot to do about it besides buy prepackaged food that don't have meat, vegtabjes or fruit. Protien bars may have worked. We brought two bottles of water each from the terminal. I could have used more, even with the drink service. The flight attendants we're having thier own personal conversation while passing out food and ran by when it came to the final trash clean up. When I got up to use the facilities I tried throwing my trash away but was ignored by a crew member while she was resting.

Fri, 31 May
SNN
Shannon
LHR
London Heathrow
1h 35m
Mon, 3 Jun
LHR
London Heathrow
SNN
Shannon
1h 25m
€215
Trip: 4 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
Excellent 10.0

Pros: Efficient staff and timely I would book again for sure

SNN
LHR
Excellent 10.0

Pros: Flight attendants were nice looking, very friendly, smelled nice they could not have been warmer people!!

DUB
BOD
Excellent 10.0

Pros: No time... Good service

LIS
DUB
Mediocre 2.3

Cons: No delay

DUB
LHR
Excellent 10.0

Pros: From check in to security to boarding everything was smooth with no waiting. Thanks for a great flight.

Wed, 7 Aug
SNN
Shannon
LHR
London Heathrow
1h 30m
Fri, 9 Aug
LHR
London Heathrow
SNN
Shannon
1h 30m
€220
Trip: 3 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
DUB
JFK
Excellent 8.6

Pros: Very happy with my choice of this AE LIGUS Comfortabke seats and great crew Love it

SNN
LHR
Good 6.6

Cons: Short flight but had to pay for snacks or drinks on Aer Lingus.

SFO
DUB
Good 6.6

Pros: The staff are always lovley

Cons: They lost my bags and 5 days later I still don’t have them.. traveling alone with a baby for Christmas.. all my gifts were in that bag so Christmas is a bit of a loss.. I find it way to difficult to get refunded or reimbursed for my loss

DUB
BOD
Excellent 10.0

Pros: No time... Good service

LHR
DUB
Excellent 10.0

Pros: Good price , good career

Mon, 25 Feb
SNN
Shannon
LHR
London Heathrow
1h 35m
Thu, 28 Feb
LHR
London Heathrow
SNN
Shannon
1h 25m
€323
Trip: 4 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 44 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
BOS
DUB
Excellent 10.0

Pros: Friendly people, plenty of food on the plane..

EWR
DUB
Excellent 10.0

Pros: The welcome, hospitality and service by the crew were all excellent

SNN
LHR
Excellent 9.6

Pros: Boarding was effortless

Cons: Nothing at this stage.

SNN
LHR
Excellent 10.0

Pros: I love Aer Lingus, they appear to be always on time and nice comfy seats. No problem boarding, was nice and quick.

Cons: Nothing to not like at mo.

LHR
DUB
Excellent 10.0

Pros: Good price , good career

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.