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

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Shannon to London Heathrow flight information

Avg. flight duration 1h 29m
Flights arrive in London Heathrow
Flights depart from Shannon
Flight price €135
Distance 595 km
Airlines Aer Lingus, British Airways

Good to know

Low season:
November
Best time to beat the crowds
3%
expected price decrease
High season:
December
Most popular time to fly
2%
expected price increase
Average price:
€149
(avg. price over the last 2 weeks)
Good deal:
€139
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 €138 or less.
The cheapest flight from Shannon to London Heathrow was found, on average, 90 days before departure.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 16% 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 595 km.
How many flights are there between Shannon and London Heathrow?
There are 87 (non-stop) flights between Shannon and London Heathrow per week, averaging 13 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 (€135) and British Airways (€739)
Which airlines fly most frequently between Shannon and London Heathrow?
Air Canada (2 times daily), Aer Lingus (2 times daily), Etihad Airways (2 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 Friday is the most expensive. Flying from London Heathrow back to Shannon, the best deals are generally found on Friday, with Saturday being the most expensive.

Book cheap flights from Shannon to London Heathrow (return)

Airports
Origin
Shannon
€135
only
€135
Destination
London
€135
only
€135
Sat, 2 Feb
SNN
Shannon
LHR
London Heathrow
1h 35m
Sun, 3 Feb
LHR
London Heathrow
SNN
Shannon
1h 25m
€135
Trip: 2 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
Good 6.6

Pros: The efficient flight but no drinks or snacks w/o purchase

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.

SNN
LHR
Excellent 8.3

Pros: Nice seats food was decent crew excellent

Cons: Not enough room

SNN
LHR
OK 5.0

Pros: Ahead is schedule

Cons: Even had to pay for coffee

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.

Mon, 10 Dec
SNN
Shannon
LHR
London Heathrow
1h 35m
Thu, 13 Dec
LHR
London Heathrow
SNN
Shannon
1h 25m
€139
Trip: 4 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 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.

SNN
LHR
Excellent 10.0

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

SNN
LHR
Excellent 8.3

Pros: Nice seats food was decent crew excellent

Cons: Not enough room

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.

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.

Thu, 24 Jan
SNN
Shannon
LHR
London Heathrow
1h 35m
Sun, 27 Jan
LHR
London Heathrow
SNN
Shannon
1h 25m
€149
Trip: 4 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
OK 5.0

Pros: Ahead is schedule

Cons: Even had to pay for coffee

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.

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.

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
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.

Thu, 7 Mar
SNN
Shannon
LHR
London Heathrow
1h 35m
Thu, 21 Mar
LHR
London Heathrow
SNN
Shannon
1h 25m
€152
Trip: 14 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
OK 5.0

Pros: Ahead is schedule

Cons: Even had to pay for coffee

SNN
LHR
Good 6.6

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

SNN
LHR
Good 6.3

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

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.

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.

Sun, 2 Dec
SNN
Shannon
LHR
London Heathrow
1h 35m
Wed, 5 Dec
LHR
London Heathrow
SNN
Shannon
1h 25m
€153
Trip: 4 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
Good 6.6

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

SNN
LHR
Good 6.6

Pros: The efficient flight but no drinks or snacks w/o purchase

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.

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.

SNN
LHR
OK 4.6

Cons: Paying for beverages seemed a bit much.

Mon, 11 Feb
SNN
Shannon
LHR
London Heathrow
1h 35m
Wed, 13 Feb
LHR
London Heathrow
SNN
Shannon
1h 25m
€155
Trip: 3 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
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.

SNN
LHR
Good 6.6

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

SNN
LHR
Excellent 8.3

Pros: Nice seats food was decent crew excellent

Cons: Not enough room

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.

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.

Thu, 22 Nov
SNN
Shannon
LHR
London Heathrow
1h 35m
Mon, 26 Nov
LHR
London Heathrow
SNN
Shannon
1h 25m
€158
Trip: 5 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
SNN
LHR
Good 6.6

Pros: The efficient flight but no drinks or snacks w/o purchase

SNN
LHR
OK 4.6

Cons: Paying for beverages seemed a bit much.

SNN
LHR
Excellent 10.0

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

SNN
LHR
Good 6.3

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

SNN
LHR
Good 6.6

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

Fri, 8 Mar
SNN
Shannon
LHR
London Heathrow
1h 25m
Sun, 17 Mar
LHR
London Heathrow
SNN
Shannon
1h 25m
€739
Trip: 9 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 5 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
BCN
LHR
Mediocre 2.0

Cons: I missed my connection because of the late arrival

GLA
LHR
Good 7.6

Pros: Helpful and friendly staff

Cons: Filth plane

SNN
LHR
Good 7.0

Pros: Service flight crw

Cons: Terribly crowded

DEN
LHR
Excellent 8.3

Pros: My flight was over four hours delayed and I appreciated that when I got to the airport and found that out, I didn’t have to ask for anything but was immediately greeted with a food voucher. I lost an entire days worth of vacation in Germany, so well I do feel the British Airways should have done better and should’ve compensated me better, the fact that they immediately took steps to make the situation better was greatly appreciated. That level of customer service was beyond any I’ve received with an American-based airline. Also, the crew on the plane was fantastic and a great choice of movies. I flew American on the way home and was shocked at the lack of customer service and rudeness, I will happily fly British Airways again and again.

Cons: A plane that was over four hours late costing me an entire day in Germany.

MAN
LHR
Excellent 8.0

Cons: I didnt like the fact that we had to pay for a cup of tea. Surely that should be complimentary.

Thu, 22 Nov
SNN
Shannon
LHR
London Heathrow
1h 35m
Sun, 25 Nov
LHR
London Heathrow
SNN
Shannon
1h 25m
€251
Trip: 4 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
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.

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.

SNN
LHR
OK 4.6

Cons: Paying for beverages seemed a bit much.

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.

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.

Fri, 16 Nov
SNN
Shannon
LHR
London Heathrow
1h 35m
Sun, 18 Nov
LHR
London Heathrow
SNN
Shannon
1h 25m
€274
Trip: 3 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 43 reviews
Overall
7.5
Boarding
7.6
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.8
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.

SNN
LHR
Excellent 10.0

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

SNN
LHR
Good 6.6

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

SNN
LHR
OK 4.6

Cons: Paying for beverages seemed a bit much.

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.

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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.