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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
2%
expected price decrease
High season:
August
Most popular time to fly
9%
expected price increase
Average price:
€161
(avg. price over the last 2 weeks)
Good deal:
€144
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 €144 or less.
The cheapest flight from Shannon to London Heathrow was found, on average, 44 days before departure.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be July, August and September. The cheapest month to fly is February.
Morning departure is around 205% 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?
The average direct flight takes 1h 30m, covering a distance of 594 km.
How many flights are there between Shannon and London Heathrow?
There are 106 (direct) flights between Shannon and London Heathrow per week, averaging 16 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 (3 times daily), Aer Lingus (3 times daily), British Airways (3 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, Saturday 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 Sunday, with Monday being the most expensive.

Book cheap flights from Shannon to London Heathrow (return)

Airports
Origin
Shannon
€137
only
€137
Destination
London
€137
only
€137
Sat, 22 Jun
SNN
Shannon
LHR
London Heathrow
1h 30m
Sun, 30 Jun
LHR
London Heathrow
SNN
Shannon
1h 30m
€137
Trip: 9 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
DUB
PRG
Excellent 8.0

Pros: Seat was fine ! I was very thirsty and no free water..

Cons: Free drink/ water !!!

ORK
AMS
Excellent 9.6

Pros: Yes

SFO
DUB
OK 5.6

Pros: Non stop flight, boarding

Cons: Food was terrible and seat comfort is bad

DUB
FCO
Good 6.0

Cons: The seats were very tight and narrow

DUB
BRU
Excellent 8.5

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

Fri, 12 Jul
SNN
Shannon
LHR
London Heathrow
1h 30m
Sun, 14 Jul
LHR
London Heathrow
SNN
Shannon
1h 25m
€142
Trip: 3 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
SNN
LHR
Excellent 9.3

Pros: Staff was professional

Cons: Need to post the gate assignment sooner for those of us traveli g with the elderly.

PHL
DUB
Excellent 9.0

Cons: My seat was broken, so I had to move to another. Fodd options were less than expected. Overall experience was good. Would definitely fly again, but bring my own snacks.

DUB
BRU
Excellent 8.5

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

DUB
FCO
Excellent 10.0

Pros: Same comments

Cons: Same comments

JFK
DUB
Good 6.0

Pros: The staff was great

Cons: Wifi didn’t work for me

Tue, 13 Aug
SNN
Shannon
LHR
London Heathrow
1h 30m
Fri, 16 Aug
LHR
London Heathrow
SNN
Shannon
1h 30m
€142
Trip: 4 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
BOS
DUB
Excellent 9.3

Cons: The seats could have been more comfortable and . The plane was over booked

DUB
FCO
Excellent 10.0

Pros: Same comments

Cons: Same comments

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.

SNN
LHR
Good 6.6

Pros: Very polite and helpful.

Cons: Unknown

BCN
DUB
Good 7.3

Pros: Take off and landing was so smooth.

Thu, 2 May
SNN
Shannon
LHR
London Heathrow
1h 35m
Tue, 7 May
LHR
London Heathrow
SNN
Shannon
1h 25m
€146
Trip: 6 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
LHR
DUB
Good 6.4

Pros: The crew was very good.

Cons: Please add more hindi movies

CDG
DUB
Good 7.0

Pros: It was a comfortable and roomy (nice leg room) flight

Cons: Their entertainment system was not working, nor was their WiFi

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.

CDG
DUB
OK 5.0

Pros: Not crowded, lots of empty seats

Cons: Poor customer service. I think I said thank you many more times than the flight attendants who barely acknowledged me and seemed annoyed about performing any type of basic service (serving food/water/collecting rubbish/etc.).

DUB
FCO
Good 6.0

Cons: The seats were very tight and narrow

Tue, 30 Apr
SNN
Shannon
LHR
London Heathrow
1h 35m
Tue, 7 May
LHR
London Heathrow
SNN
Shannon
1h 25m
€175
Trip: 8 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
DUB
BRU
Excellent 8.5

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

SNN
LHR
Good 6.0

Pros: We left on time and landed a bit early. Only 1 1/2 hour flight, so no food, drink or service, but it got us there.

PHL
DUB
Excellent 9.0

Cons: My seat was broken, so I had to move to another. Fodd options were less than expected. Overall experience was good. Would definitely fly again, but bring my own snacks.

SNN
LHR
Excellent 8.0

Pros: Shannon is a very easy airport.

Cons: I was unable to get my seats assigned from America. I had to go to the Aer Lingus desk when I arrived to get seat assignment.

ORK
AMS
Good 7.5

Pros: Hostess were helpful and friendly

Cons: Middle seat in first row and my bag half way down the plane so although I could’ve been first off I was in actual effect the very last.

Mon, 29 Jul
SNN
Shannon
LHR
London Heathrow
1h 30m
Wed, 31 Jul
LHR
London Heathrow
SNN
Shannon
1h 30m
€197
Trip: 3 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
EWR
DUB
Excellent 9.6

Pros: Overall everything went better than expected. Flew Aer Lingus from East Coast through Dublin to Rome. Making the connection in Dublin was the easiest connection I’ve ever made and I fly multiple times every month. I would fly Aer Lingus to Europe again for sure.

Cons: We did not get to select the seats. I did get an extremely low priced fare so I was prepared. The seats were in the very back of the plane from Dublin to Rome even though there were many seats open throughout the plane. I couldn’t figure out how to purchase upgrades using the app.

ORD
DUB
Mediocre 2.0

Pros: I'm very angry that the ticket sold to me was British Airways and I was told on the airport by British Airways that I should check in at the Air Lingus counter! This is cheating and false advertising!!!

Cons: Everything could have been better!

SNN
LHR
Excellent 9.6

Pros: Boarding was effortless

Cons: Nothing at this stage.

BOS
DUB
Excellent 10.0

Pros: The crew was as amazing as they were 9 years ago when I flew Aer Lingus. The plane was very clean and comfortable. The entertainment that we could choose from very good. Something for everyone was provided.

Cons: One thing that I would like to see improved is for the announcements to be spoken slower than they were. The announcements were so quick that I could not understand what was being said. This should be an easy fix so I have no worries .

SNN
LHR
Good 6.3

Cons: NO complimentary drinks or snacks. Seats are bolt upright. Not comfortable.

Fri, 3 May
SNN
Shannon
LHR
London Heathrow
1h 35m
Sun, 5 May
LHR
London Heathrow
SNN
Shannon
1h 30m
€198
Trip: 3 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
ORK
AMS
Excellent 9.6

Pros: Yes

SFO
DUB
OK 5.6

Pros: Non stop flight, boarding

Cons: Food was terrible and seat comfort is bad

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.

ORK
AMS
Good 7.5

Pros: Hostess were helpful and friendly

Cons: Middle seat in first row and my bag half way down the plane so although I could’ve been first off I was in actual effect the very last.

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.

Thu, 5 Sep
SNN
Shannon
LHR
London Heathrow
1h 35m
Sun, 8 Sep
LHR
London Heathrow
SNN
Shannon
1h 30m
€234
Trip: 4 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
SNN
LHR
Excellent 8.0

Pros: Shannon is a very easy airport.

Cons: I was unable to get my seats assigned from America. I had to go to the Aer Lingus desk when I arrived to get seat assignment.

DUB
ORD
Excellent 8.3

Pros: Plane was 1/2 full and I moved to empty row to stetch out and sleep. Quite comfy. Excellent music selection at least for classical.

Cons: Poor water service. Attendents came around twice on 8 hour flight offering a small plastic glass of water. Should have brought my own.

BCN
DUB
Good 7.3

Pros: Take off and landing was so smooth.

LHR
DUB
Good 6.4

Pros: The crew was very good.

Cons: Please add more hindi movies

SFO
DUB
OK 5.6

Pros: Non stop flight, boarding

Cons: Food was terrible and seat comfort is bad

Mon, 30 Sep
SNN
Shannon
LHR
London Heathrow
1h 30m
Sun, 6 Oct
LHR
London Heathrow
SNN
Shannon
13h 45m
€318
Trip: 7 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 45 reviews
Overall
7.6
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.1
Food
6.8
ORD
DUB
Excellent 8.0

Pros: Everything was good except the flight from Dublin to Prague..., I was really thirsty.., and they charged me even for water..!

Cons: Free drink/ water on the second flight !

SNN
LHR
Good 6.6

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

PHL
DUB
Excellent 8.0

Cons: No middle seat

EWR
DUB
Excellent 9.6

Pros: Overall everything went better than expected. Flew Aer Lingus from East Coast through Dublin to Rome. Making the connection in Dublin was the easiest connection I’ve ever made and I fly multiple times every month. I would fly Aer Lingus to Europe again for sure.

Cons: We did not get to select the seats. I did get an extremely low priced fare so I was prepared. The seats were in the very back of the plane from Dublin to Rome even though there were many seats open throughout the plane. I couldn’t figure out how to purchase upgrades using the app.

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.

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