$58+ Cheap flights from Shannon (SNN) to Heathrow (LHR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LHR
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from Shannon to Heathrow with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Shannon to Heathrow
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Best
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One-way
Cheapest flights from Shannon to HeathrowExplore the most affordable flight options available from Shannon to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from Shannon to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This Mytrip deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:05 pm -
Nonstop1h 20m
Mon 12/710:00 am -
Nonstop1h 30m
Deal found 9/18![Aer Lingus logo]()
$113
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:05 pm -
Nonstop1h 20m
Tue 11/103:15 pm -
Nonstop1h 30m
Deal found 9/19![Aer Lingus logo]()
$120
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates ” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:50 pm -
Nonstop1h 30m
Wed 10/219:50 am -
Nonstop1h 30m
Deal found 9/20![Aer Lingus logo]()
$121
This Mytrip deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:05 pm -
Nonstop1h 20m
Mon 11/96:05 pm -
Nonstop1h 20m
Deal found 9/18![Aer Lingus logo]()
$122
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:15 pm -
Nonstop1h 25m
Sun 10/49:50 am -
Nonstop1h 30m
Deal found 9/20![Aer Lingus logo]()
$125
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm -
Nonstop1h 25m
Wed 9/302:40 pm -
Nonstop1h 30m
Deal found 9/23![Aer Lingus logo]()
$127
This Booking.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:10 pm -
Nonstop1h 25m
Mon 11/236:05 pm -
Nonstop1h 20m
Deal found 9/18![Aer Lingus logo]()
$128
This Booking.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:05 pm -
Nonstop1h 20m
Mon 12/710:00 am -
Nonstop1h 30m
Deal found 9/18![Aer Lingus logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm -
Nonstop1h 25m
Sun 10/49:50 am -
Nonstop1h 30m
Deal found 9/23![Aer Lingus logo]()
$132
This Travelocity deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm -
Nonstop1h 25m
Tue 9/299:50 am -
Nonstop1h 30m
Deal found 9/22![Aer Lingus logo]()
$133
Best flights from Shannon to HeathrowDiscover carefully curated flight deals from Shannon to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from Shannon to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:15 pm -
Nonstop1h 25m
Wed 10/217:10 pm -
Nonstop1h 25m
Deal found 9/23![Aer Lingus logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:05 pm -
Nonstop1h 20m
Tue 11/106:50 pm -
2 stops39h 05m
Deal found 9/19![Multiple Airlines logo]()
$188
This British Airways deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:30 pm -
Nonstop1h 25m
Sat 12/510:00 am -
Nonstop1h 30m
Deal found 9/23![British Airways logo]()
$285
This Booking.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:05 pm -
Nonstop1h 20m
Sun 11/2910:00 am -
Nonstop1h 30m
Deal found 9/18![Aer Lingus logo]()
$183
This Booking.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/285:10 pm -
Nonstop1h 25m
Sun 11/2910:00 am -
Nonstop1h 30m
Deal found 9/19![Aer Lingus logo]()
$231
This Booking.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:05 pm -
2 stops17h 50m
Mon 11/306:05 pm -
Nonstop1h 20m
Deal found 9/20![Multiple Airlines logo]()
$259
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:50 am -
Nonstop1h 25m
Wed 11/1111:40 am -
1 stop24h 55m
Deal found 9/20![Multiple Airlines logo]()
$282
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:15 pm -
Nonstop1h 25m
Thu 10/229:10 pm -
2 stops16h 15m
Deal found 9/20![Multiple Airlines logo]()
$287
This Booking.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:20 am -
2 stops9h 45m
Mon 11/306:05 pm -
Nonstop1h 20m
Deal found 9/20![Multiple Airlines logo]()
$335
Last-minute flights from Shannon to HeathrowDiscover last-minute flight deals from Shannon to Heathrow. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Shannon to Heathrow. Data last updated September 23, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm -
Nonstop1h 25m
Wed 9/302:40 pm -
Nonstop1h 30m
Deal found 9/23![Aer Lingus logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm -
Nonstop1h 25m
Sun 10/49:50 am -
Nonstop1h 30m
Deal found 9/23![Aer Lingus logo]()
$132
This Travelocity deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm -
Nonstop1h 25m
Tue 9/299:50 am -
Nonstop1h 30m
Deal found 9/22![Aer Lingus logo]()
$133
This FlightHub deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm -
Nonstop1h 25m
Tue 9/299:50 am -
Nonstop1h 30m
Deal found 9/23![Multiple Airlines logo]()
$155
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:15 pm -
Nonstop1h 25m
Sun 10/49:50 am -
Nonstop1h 30m
Deal found 9/20![Aer Lingus logo]()
$125
This Expedia deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:30 am -
Nonstop1h 35m
Mon 10/127:10 pm -
Nonstop1h 25m
Deal found 9/22![Aer Lingus logo]()
$153
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:50 pm -
Nonstop1h 30m
Wed 10/219:50 am -
Nonstop1h 30m
Deal found 9/20![Aer Lingus logo]()
$121
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:15 pm -
Nonstop1h 25m
Thu 10/222:40 pm -
Nonstop1h 30m
Deal found 9/20![Aer Lingus logo]()
$148
One-way flights from Shannon to HeathrowSearch for one-way flight options from Shannon to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from Shannon to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Mytrip deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:15 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Aer Lingus logo]()
$58
This Mytrip deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:50 am -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Aer Lingus logo]()
$60
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:50 pm -
Nonstop1h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Aer Lingus logo]()
$61
This Booking.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:50 am -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Aer Lingus logo]()
$62
This Booking.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:15 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Aer Lingus logo]()
$63
This Mytrip deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:15 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Aer Lingus logo]()
$64
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:50 pm -
Nonstop1h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Aer Lingus logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:15 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Aer Lingus logo]()
$69
This Booking.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/98:05 pm -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Aer Lingus logo]()
$70
This Booking.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/28:05 pm -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Aer Lingus logo]()
$71
This Booking.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/288:05 pm -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Aer Lingus logo]()
$74
Find flight deals from Shannon to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Shannon (SNN) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $113 (Mytrip) |
One-way from | $58 (Mytrip) |
Popular in | June |
Cheapest in | January |
Average price | $159 |
Good round-trip deal | $130 or less |
Good one-way deal | $133 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Shannon to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 23, 2026.
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
Cheapest round-trip
Quickest round-trip
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Thu 11/19
8:05 pm-9:25 pm
Nonstop1h 20m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$63
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Thu 10/22
9:15 pm-10:40 pm
Nonstop1h 25m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$63
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Tue 12/1
5:30 pm-6:55 pm
Nonstop1h 25m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$64
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Wed 11/11
7:50 am-9:15 am
Nonstop1h 25m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$64
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Fri 10/9
9:15 pm-10:40 pm
Nonstop1h 25m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$65
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Mon 1/25
8:05 pm-9:25 pm
Nonstop1h 20m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$65
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Mon 2/8
8:05 pm-9:25 pm
Nonstop1h 20m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$71
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Wed 10/14
9:15 pm-10:40 pm
Nonstop1h 25m
London Heathrow
Wed 10/21
7:10 pm-8:35 pm
Nonstop1h 25m
$123
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Wed 10/21
10:00 am-8:05 pm
2 stops10h 05m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$125
ShannonLondon
SNN Shannon - LHR London Heathrow
SNNLHR
Shannon
Wed 11/11
2:30 pm-6:00 pm
3 stops27h 30m
London Heathrow
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$152
Showing 1-10 of 19 resultsSorted by cheapest first
- 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.
SNN-LHR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Shannon to London Heathrow Airport
Prices
Airlines
Delays
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 $215). 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?
Find hourly flight availability from Shannon to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 23, 2026.
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 often are flights from Shannon to London delayed?
About 14% of weekly flights between Shannon and London have experienced delays in the past year, with the average delay time being 94 minutes.
What is the most punctual flight time for Shannon to London flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Shannon to London flights?
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 14% of flights being delayed.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated September 23, 2026.
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.
Boarding
7.4
Overall
7.3
Food
6.7
Crew
8.1
Comfort
7.2
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
DUB - EDI
Boarding
7.4
Overall
7.3
Food
6.7
Crew
8.1
Comfort
7.2
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
DUB - EDI
Related info for your journey
Find useful and relevant information for your journey from Shannon to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Dorking
Gatwick
Hounslow
Harrow
Wembley
Southend-on-Sea
Basingstoke
Watford
Northampton
Dartford
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Kingston upon Thames
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Luton
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Alternative routes for Shannon to Heathrow
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Complete your trip
Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Shannon to Heathrow by cabin class
Find flights from Shannon to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.
Shannon and Heathrow flights
Browse other Shannon and Heathrow flight options. Last updated on September 23, 2026.
Other flights from Shannon
Browse through other flights departing from Shannon. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Shannon to Heathrow
Discover the top airline that operate flights from Shannon to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$125 | Average$166 | FlexibilityNo cancel fee | On-timeN/A |