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Heathrow

$56+ Cheap flights from Shannon (SNN) to Heathrow (LHR)

SNN — LHR
Dec 6 — Dec 131
Sun 12/6
Sun 12/13
1 adult, Economy
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Cheap flight deals from Shannon to Heathrow

Cheapest flights from Shannon to Heathrow

Mon 11/308:05 pm -
Nonstop1h 20m
Wed 12/910:00 am -
Nonstop1h 30m
Deal found 11/3$121
Fri 11/208:05 pm -
Nonstop1h 20m
Tue 11/246:05 pm -
Nonstop1h 20m
Deal found 11/4$122
Tue 12/18:05 pm -
Nonstop1h 20m
Fri 12/46:05 pm -
Nonstop1h 20m
Deal found 11/2$123
Sat 11/215:10 pm -
Nonstop1h 25m
Mon 11/236:05 pm -
Nonstop1h 20m
Deal found 11/4$124
Tue 11/178:05 pm -
Nonstop1h 20m
Wed 11/183:15 pm -
Nonstop1h 30m
Deal found 11/3$125
Fri 11/208:05 pm -
Nonstop1h 20m
Mon 11/2310:00 am -
Nonstop1h 30m
Deal found 11/5$140
Sun 11/227:50 am -
Nonstop1h 25m
Tue 11/2410:00 am -
Nonstop1h 30m
Deal found 11/4$142
Thu 11/268:05 pm -
Nonstop1h 20m
Sat 11/282:15 pm -
Nonstop1h 30m
Deal found 11/4$145
Thu 11/127:50 am -
Nonstop1h 25m
Thu 11/123:15 pm -
Nonstop1h 30m
Deal found 11/4$149
Fri 11/208:05 pm -
Nonstop1h 20m
Sun 11/2210:00 am -
Nonstop1h 30m
Deal found 11/4$158
Wed 12/28:05 pm -
Nonstop1h 20m
Wed 12/163:15 pm -
Nonstop1h 30m
Deal found 11/2$161
Fri 11/138:05 pm -
Nonstop1h 20m
Fri 11/206:05 pm -
Nonstop1h 20m
Deal found 11/6$171

Find flight deals from Shannon to Heathrow

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$121
(Booking.com)

One-way from

$56
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$154

Good round-trip deal

$618 or less

Good one-way deal

$87 or less
Provider with most accurate pricing for Shannon-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Shannon-London Heathrow flights.
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From Shannon to London Heathrow
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One-way flight from Shannon to London Heathrow
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Highest demand for flights based on searches. 11% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from Shannon to London Heathrow.
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Price to beat on a one-way flight from Shannon to London Heathrow.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Shannon to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Thu 11/12

8:05 pm-9:25 pm

Nonstop1h 20m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$60

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Wed 11/18

8:05 pm-9:25 pm

Nonstop1h 20m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$61

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Fri 12/18

8:05 pm-9:25 pm

Nonstop1h 20m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$61

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Thu 1/21

7:50 am-9:15 am

Nonstop1h 25m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$127

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Thu 11/12

5:15 pm-8:05 am

2 stops14h 50m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$142

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Wed 2/17

8:05 pm-9:25 pm

Nonstop1h 20m

London Heathrow

Wed 2/24

10:00 am-11:30 am

Nonstop1h 30m

$145

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Sat 1/2

7:50 am-9:15 am

Nonstop1h 25m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$148

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Fri 11/13

9:25 am-9:15 am

1 stop23h 50m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$150

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Wed 11/11

2:30 pm-8:25 am

2 stops17h 55m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$180

ShannonLondon

SNN Shannon - LHR London Heathrow

SNNLHR

Shannon

Sat 12/5

12:45 pm-3:30 pm

3 stops26h 45m

London Heathrow

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$196

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Shannon to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Shannon to Heathrow in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Shannon, Clare-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Shannon, Clare-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Shannon, Clare-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Shannon, Clare-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Shannon, Clare-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Shannon to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Shannon with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Shannon to London Heathrow Airport

What is the cheapest month to book a flight from Shannon, Clare to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Shannon, Clare to London Heathrow Airport (average of $153). Flying from Shannon, Clare to London Heathrow Airport in June is currently the most expensive (average of $212). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SNN to LHR?

When flying from Shannon, Clare to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Shannon, Clare to London Heathrow Airport?

Airfare is below average for this route at the moment.

Shannon, Clare to London Heathrow Airport flights typically cost between $127 and $195 in November.
The cheapest round-trip price found within the last 5 days was $121 on Aer Lingus (Nov 30-Dec 9).

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with Aer Lingus from Shannon to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,879 reviews

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.1

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.3
Good
1,879 reviews
Aer Lingus
7.3
Good
1,879 reviews

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.1

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Related info for your journey

  • What airport do you fly from for flights from Shannon to London Heathrow?

    Most people fly from Shannon (SNN) if they book a flight from Shannon to London Heathrow. On average, Shannon has 11 outbound flights to London Heathrow per day from 1 airline. Shannon is conveniently located just 2.1 mi from Shannon’s city center.

  • How long is the flight from Shannon, Clare to London Heathrow Airport?

    There are many flights that can get you from Shannon, Clare to London Heathrow Airport in 1h 25m. Fly via Aer Lingus or British Airways to get the fastest option. Shannon, Clare and London Heathrow Airport are separated by a distance of 368 mi. Most flights are nonstop.

  • What is the cheapest airline to fly from Shannon, Clare to London Heathrow Airport round-trip?

    Our cheapest airline available from Shannon, Clare to London Heathrow Airport is Aer Lingus. Our recent data shows that you can find tickets from as low as $125 on this airline. Aer Lingus is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Shannon, Clare to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Shannon, Clare, check out the most reliable airlines to get you to your destination on time: Air Canada (86%), American Airlines (86%), Aer Lingus( 86%).

  • What are the cheapest flights from Shannon, Clare to London Heathrow Airport?

    Looking for the cheapest flight from Shannon, Clare to London Heathrow Airport? While on average our users pay $549, our data indicates the cheapest price to be $65. The most popular route (Shannon - London Heathrow), is priced around $14,062.

  • Can I find deals for flights from Shannon to Heathrow that include hotel bookings?

    Yes. In addition to deals on Shannon to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Shannon to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to Heathrow.

  • Can I find deals for business class flights from Shannon to Heathrow?

    Yes. Cheapflights offers flight deals from Shannon to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Shannon, Clare to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Shannon, Clare to London Heathrow Airport (average of $153). Flying from Shannon, Clare to London Heathrow Airport in June is currently the most expensive (average of $212). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Dorking
Gatwick
Hounslow
Wembley
Harrow
Southend-on-Sea
Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Kingston upon Thames
Chipping Norton
Slough
Eastbourne
Stansted
Sutton
Luton

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Alternative routes for Shannon to Heathrow

Dublin to Gatwick flights
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Cork to Heathrow flights

Top airline flying from Shannon to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$125Average$165FlexibilityNo cancel feeOn-timeN/A

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