Find cheap flights from Shannon to London Heathrow Airport

SNN - LHR

Find cheap flights from Shannon to London Heathrow Airport

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London Heathrow
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Good to know

Low season

September Best time to beat the crowds (6% less expensive on average)

High season

October Most popular time to fly (14% more expensive on average)

Average price round-trip

€138 (avg. price over the last 2 weeks)

Good deal round-trip

€152 or less

Good deal one-way

€65 or less

When to book flights from Shannon to London Heathrow

Estimated return price
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 €53 or less one-way and €125 or less round-trip.
  • The cheapest flight from Shannon to London Heathrow Airport was found, on average, 66 days before departure.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be September, October and November. The cheapest month to fly is September.

FAQs for booking Shannon to London Heathrow Airport flights

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Top airlines flying Shannon to London Heathrow

Scores according to KAYAK customer reviews

7.4
Aer Lingus
Overall score based on 6,074 reviews
7.6
Boarding
7.3
Comfort
8.0
Crew
7.1
Entertainment
6.8
Food
Airline reviews

Pros: "Seating and leg room much better than Ryan Air!"

Pros: "It was short and with friendly staff."
Cons: "No complimentary refreshments."

Pros: "Everything except the food"
Cons: "The food."

Cons: "2 hour delay on an hour flight"

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."

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."

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

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."

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."

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

Cons: "Paying for inflight drinks. All US airlines provide FREE complimentary drinks and snacks. Seemed in poor taste to charge for such things made the airlines appear cheap."

Pros: "On time"
Cons: "We had to spend $1000 on tickets because Kayak DID NOT book us on the flight we had a confirmation for"

Cons: "They lost our strollers which put us into a really difficult situation, since we had to carry our two toddlers + our infant during the 5hour connection time in LND."

Cons: "Extremely uncomfortable. The seats were too close together and not enough room, but overall the airline is great. Will travel with them again, but will travel business class next time."

Pros: "Nice seats food was decent crew excellent"
Cons: "Not enough room"

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

Pros: "Boarding went quickly but there was no discomfort on the plane. Staff was friendly and efficient and they made an effort to take off and arrive early to our destination."
Cons: "Nothing, excellent trip"

Pros: "Ahead is schedule"
Cons: "Even had to pay for coffee"

Pros: "Does not apply"
Cons: "Does not apply"

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

Cons: "Paying for beverages seemed a bit much."

Cons: "Custom made bike box erroneously classified oversized, but they didn't charge for it so ok"

Pros: "Flight was nice and was told when there would be turbulence"
Cons: "Boarded/left 20 minutes late"

Pros: "Journey was good"
Cons: "Air lingus checked on my bag under someone else's name, now I am stuck in San Diego with no luggage and no answer as to where my bag is, very disappointed"

Pros: "entertainment was great on board food was good (for airline food) staff was friendly and helpful"

Cons: "Airline lost my luggage..."

Cons: "Seats don't recline. Didn't tell all snacks and beverages were not complimentary"

Pros: "Short flight on time."
Cons: "Not even water to drink. Have to ride a bus, climb stairs to board plane."

Cons: "The customer service did not help at all."

Pros: "The British Airways portion was exceptional! The Aer Lingus portion was not!"
Cons: "On Departure for Dublin, waited in long line to check in at Aer Lingus only to learn it was co chaired by British Airways, so Aer Lingus would not service us at all. We had no way of knowing since it was sold by Aer Lingus and had an Aer Lingus flight number. Tried to check in on line, but was unable. Waited for Aer Lingus customer service on telephone customer service for more than one hour and finally just gave up. Aer Lingus has no Customer Service at all. Do not deal with Aer Lingus under any circumstances. British Airways met our needs!!"

Pros: "IT was dope!"
Cons: "I was hungover."

Pros: "Boarding was quick and efficient. I was seated quickly and the flight took off on time. No complaints."

Pros: "Quick and efficient."
Cons: "N/A"

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."

Pros: "The personnel involved with wheelchair services who took us to our gate was very helpful and engaging. We thank them for this service. The gate personnel and flight attendants were helpful to get us on the flight earlier that was helpful with my husband" visual disability."

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

Cons: "The problem I had is that this was not a British Airways flight, nor were my flights to Dublin. I was not aware of this. When I checked in online I was allowed to check in with British Airways, so I had no idea that this was an Aer Lingus flight, which is in a different terminal with a different flight number. My phone didn't work in Ireland so it was extremely difficult figuring out where I should have been. If I was on a different airline that is affiliated with British Airways, and I booked through British Airways, there should be some way of looking up where I should be going. Also, any emails about my trip should have told me which airline I was on. I fly often, and often to other countries. This was the most confusing and difficult flying experience (the entire trip -- getting to and from Dublin) I have ever had."

Pros: "Friendly crew."
Cons: "Having to use steps at Cork airport . The cost of tea served in a disposable cup is too expensive."

Pros: "Good flight. No problems during check in. Flight left and arrived on-time."
Cons: "No issues."

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."

Cons: "I'm soooo upset about the service after my flight canceled. 1.the staff ignored me when I asked if I could have a VIP to rebook my tickets earlier because my mom got cancel and was going to do the surge . But he went away and never came back, no any response of YES or NO. 2.I don't know why the airline company still need 11 hours to rebook the tickets with all our flight information and our passport liscen numbers already , making us waiting till 3 am at the airport. 3. I asked my boyfriend to talk to the staff on phone, and the staff told my BF that he didn't know my English was not good. I said to him loudly that I had told him , but the manager besides said "don't shout at my staff"to me, even without asking me what happened . I don't think that was a good attitude for the service department, especially to a foreigner. My email address is Chentongtong@wku.edu.cn"

Pros: "Preferential seating, though I had to pay for it."
Cons: "Having to pay for a cup of tea."

Cons: "I requested an aisle or window seat and was not able to get one."

Pros: "Crew was friendly. Boarding was efficient."
Cons: "Hard landing."

Cons: "Our clothes and baggage wet with beer. Three days of holiday ruined trying to get clean clothes and unsucessfully to remove smell from luggage."

Pros: "Very polite and helpful."
Cons: "Unknown"

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 ."

Pros: "Friendly efficient service and complimentary late flight snacks with beverages a nice touch you don't get on other transatlantic flights"

Cons: "I could not get a seat assignment until the airport. I was sent an email to check in & was not allowed to. I called the airline & still could not get a seat assignment."

Pros: "The people were nice."

Pros: "The crew was nice"
Cons: "There was absolutely no room for me in the seat. It was very cramped. The planes from Dublin to Munich and Munich to London looked dated and shabby. There was no entertainment available. The food was mediocre to bad."

Pros: "The flight was reasonably priced."
Cons: "British Air flight attendants kept bumping into me, hitting my face with curtains, etc but never once apologized for the inconvenience. They would not provide water on a three hour flight! Their competitors provide that and a snack for similar length flights. Their boarding process is also the most chaotic I've ever experienced. I will never fly with them again."

Pros: "Overall the experience was excellent. However, there was a delay that caused me to miss my connecting flight. Upon asking the crew about my connection, they reassured me that I would be put on the next available flight."

Pros: "Service is great"

Cons: "All beverages cost extra, including water"

Pros: "Attendance were friendly and helpful and courteous. The plane was clean and we arrived ahead of schedule."

Pros: "I like the way they treat people. Each crew member was friendly and worked very hard to please everyone"
Cons: "I have no negative comments."

Pros: "On Time"
Cons: "Seat Spacing Boarding and check-in was unnecessarily long"

Pros: "Courtesy of staff Cleanliness of the cabin Comfort of the World Traveler Plus cabin"
Cons: "Nothing"

Cons: "Boarding at Charles de Gaule airport in Paris. Always a mess."

Pros: "The duration"
Cons: "N/a"

Pros: "Staff was excellent"
Cons: "Seats were very cramped"

Cons: "No water was even available for free"

Pros: "I could not have been happier with my flight to London."
Cons: "The flight back could not have had worse service. I paid for an upgrade and got none of the treatment I expected from the flight there."

Pros: "Qutar flight Nice crew"
Cons: "Late departure One hour wait at border control in heathrow Worst ever wait They are not even trying You should hammer them"

Pros: "The folks at Birtish Air are oh so nice and helpful the nicest I have dealt with flying"
Cons: "Need to charge a few more pounds for their fares so they provide a decent snack and drink had to pay extra for everything"

Pros: "No issues."
Cons: "You need to pay for drinks and snacks - feels like low cost airline."

Pros: "flight attendants excellent...food was not good.but Fri is were great. Thank you"

Pros: "Nothing"
Cons: "Overcharged for baggage as the BA online baggage payment system was not working."

Cons: "Massively cramped seating. BA needs to work out if it is the national carrier or a budget airline. The seat back of the passenger in front, when reclined, basically trapped me in my seat and made the entertainment screen very hard to see.The crew were efficient but quite rude to the passenger next to me when she hesitated over a meal choice. I will go quite a long way out of my way to avoid traveling on BA in the future, based on this experience."

Cons: "Beverages not included and food only by asking"

Cons: "Butt hurt seat was uncomfortable"

Pros: "Early arrival!"

Cons: "Waiting an hour and a half in the customer service line when you make it in time for your flight but they won't let you on your flight two make your connecting flight it was still on the ground they didn't hold it. There were more than 10 people on my flight that missed their connection. I planned a two-hour layover thinking that would be plenty."

Pros: "Crew was friendly, food was good, tv entertainment has a lot more choices now, decent leg room, smooth landing and take off,"
Cons: "Flight being late 2 hours and we had to sit in the plane for that amount of time, they didn't their refreshment service early"

Pros: "The crew were awesome-very polite, friendly and helpful! Food was also excellent."

Pros: "OVERALL EXPERIENCE WAS MADE DIFFICULT AT BEST"
Cons: "INITIAL FLIGHT TO LONDON CANCELLED ONLY HOURS BEFORE FLIGHT...MANCHESTER FLIGHT WAS LATE TO HEATHROW WAS LATE,THEREFORE MISSED FLIGHT TO L.A. AND HAD TO STAY IN LONDON...LASTLY,I HAD UPGRADED MY SEATS TO MAKE MAKES WIFE'S FIRST OVERSEAS TRIP COMFORTABLE....WE WERE SEATED IN BACK OF PLANE...WILL REQUEST MY SEAT MONEY FOR ROUND TRIP BACK..."

Cons: "Flight delayed 2 hours in Athens due to London fog. BA did nothing for passengers with connections. No information given nor attempts to hold connections. Missed our connection by 5 minutes. Could see the airplane pulling out after RUNNING through the airport for 15 minutes to catch it. There were 7 passengers on this connection. This was unacceptable"

Pros: "Their uniforms"
Cons: "The fact that the plane took off more than enough hours late with no communications to the passengers.the collect email and phone number berserk but not once sent any information about the delay when we finally got on the plane, we to wait another 40 minutes because there was only one luggage loader and it was being used on another plane. I even asked a flight attendant if I should speak to someone and she said no because it will "be sorted when we get to London."It wasn't"

Pros: "We were in coach. They would not allow us to take any water on board the plane unless we were in business or first class. Really wierd. This was a night flight, so we slept most of the way.."

Cons: "We had a good experience overall but the food was lousy."

Pros: "The flight was on time."

Pros: "Service flight crw"
Cons: "Terribly crowded"

Cons: "Even though we had assigned seats we did not get them. Flight was late to depart and really close to lose our connection flight, which for a flight that is less than 1hr you are hoping that should never happen."

Pros: "nothing"
Cons: "I have flown the same route 4 weeks earlier with British airways. comfort was much better (seats, food, service) this flight was a huge disappointment and fulfilled the basic need to transportation"

Cons: "Our flights were cancelled without our knowledge. I only found out after calling British Airways. We got the usual 24-hour alert but when I tried to check in online, I could not do it. I had to scramble and spend 40 minutes on the phone from our hotel lobby to finally get the tickets reissued. Two agents assured me that everything was ok. When we arrived at the Dublin Airport, the agents at the BA counter said that there was no record of our tickets being reissued. After furiously typing away for what seemed like forever, one gal finally got us aboard the plane. I purchased the tickets 6 months ago!"

Cons: "There should have been some entertainment on this flight- tv or wifi"

Cons: "It takes a long time to clear security/customs in London."

Cons: "My luggage did not arrive on time"

Pros: "Flights on time. Food was OK"
Cons: "BA lounge cramped and unattractive. We were more comfortable in the general boarding area. Outraged that after spending over $7,000 on tickets, we had to pay an additional $241 to select seat locations."

Pros: "Bulkhead seat Good choice of movies"
Cons: "Seat recline broken. Sarcastic male steward. Terrible food. Contracted Norovirus from the plane. Need to better disinfect between flights."

Pros: "Good boarding, very polite. Smooth ride, and plenty of leg room (when no bag under seat in front)."
Cons: "Sitting on the isle, it was extremely cold. The air is from above on the 777, so the isle seats are the ones that receive the coldest air. I couldn't warm up, and didn't want to put on a sweater when it was +35 in Dubai."

Cons: "BA ticket price on Kayak, and possibly on other sites as well, does not disclose that you cannot reserve a seat without paying additional $50 for this normal process. To compare "apples to apples" or prices with other competitive airlines we should add this $50.00 per ticket, but there is no disclosure regarding this "minor" change. I could not do "on-line" checking as well in less than 24-hour prior to the flight time. When I call the agent I received the same answer: you cannot check in now: the system prohibit it. To my surprise I found that most of the passengers, who probably paid this ransom of $50 successfully checked-in. The remaining seats were the most uncomfortable one (middle of the row)."

Pros: "I appreciated the orange express card to help me get through Heathrow"
Cons: "Heathrow was very stressful to get through to my connecting flight. Everyone was helpful"

Cons: "I had to go vegetarian, because they were out of chicken sandwiches. It may sound like a detail, but when you are traveling for 18 hours, and you did not have time for a breakfast, it makes a difference."

Pros: "the crew, food and service was wonderful"
Cons: "getting to the connecting flight was absolutely horrendous!"

Pros: "The flight was comfortable and the crew was excellent."
Cons: "The check-in process at Nice airport was extremely slow and a bit chaotic. The boarding process at the gate was also a bit chaotic."

Pros: "Everything was fine. The crew was helpful and friendly."

Pros: "Everything was very organized and very fish and it was a very enjoyable trip."

Read more about Aer Lingus
COVID-19 information

Safety measures for airlines flying from Shannon to London Heathrow

Airlines flying from Shannon to London Heathrow have enacted additional safety measures and adjusted policies to better accommodate travellers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Shannon to London Heathrow

Mandatory masks

Masks required on board, masks provided on flights from Shannon to London Heathrow

Social distancing seating

Middle seats unavailable to book on flights from Shannon to London Heathrow

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Shannon to London Heathrow

Book cheap flights from Shannon to London Heathrow Airport

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