SNN - LHR

$56 Find Cheap Flights from Shannon to London Heathrow Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$121
Typical prices: $148-$213
Aer Lingus
Fri 11/30Sat 12/8
SNN - LHR • Non-stop
Cheapest one-way
$56
Typical prices: $81-$141
Aer Lingus
Fri 3/2
SNN - LHR • Non-stop
Nonstop flights
You can fly direct with Aer Lingus. Average duration is 1h 24m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you love your trip to London Heathrow Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Shannon to Heathrow (SNN-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Shannon to Heathrow

Wed, Dec 2 - Wed, Dec 9
Aer Lingus Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Aer Lingus Logo
6:05 pm - 7:25 pmLHR  London Heathrow-SNN Shannon
1h 20mnonstop
$121Aer Lingus
Mon, Nov 30 - Tue, Dec 8
Aer Lingus Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Aer Lingus Logo
6:05 pm - 7:25 pmLHR  London Heathrow-SNN Shannon
1h 20mnonstop
$121Aer Lingus
Tue, Dec 1 - Thu, Dec 10
Aer Lingus Logo
5:30 pm - 6:55 pmSNN  Shannon-LHR London Heathrow
1h 25mnonstop
Aer Lingus Logo
3:15 pm - 4:45 pmLHR  London Heathrow-SNN Shannon
1h 30mnonstop
$121Aer Lingus
Wed, Dec 2 - Thu, Dec 10
Aer Lingus Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Aer Lingus Logo
3:15 pm - 4:45 pmLHR  London Heathrow-SNN Shannon
1h 30mnonstop
$121Aer Lingus
Mon, Nov 30 - Wed, Dec 9
Aer Lingus Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Aer Lingus Logo
10:00 am - 11:30 amLHR  London Heathrow-SNN Shannon
1h 30mnonstop
$121Aer Lingus
Thu, Dec 3 - Thu, Dec 10
Aer Lingus Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Aer Lingus Logo
3:15 pm - 4:45 pmLHR  London Heathrow-SNN Shannon
1h 30mnonstop
$121Aer Lingus
Fri, Nov 20 - Tue, Nov 24
Aer Lingus Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Aer Lingus Logo
6:05 pm - 7:25 pmLHR  London Heathrow-SNN Shannon
1h 20mnonstop
$122Aer Lingus
Tue, Dec 1 - Fri, Dec 4
Aer Lingus Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Aer Lingus Logo
6:05 pm - 7:25 pmLHR  London Heathrow-SNN Shannon
1h 20mnonstop
$123Aer Lingus
Wed, Dec 2 - Wed, Dec 16
Multiple Airlines Logo
8:05 pm - 9:25 pmSNN  Shannon-LHR London Heathrow
1h 20mnonstop
Multiple Airlines Logo
9:55 am - 9:55 amLHR  London Heathrow-SNN Shannon
24h 00m2 stops Barcelona-El Prat Alicante
$194Multiple Airlines
Sat, Dec 19 - Sat, Dec 26
Multiple Airlines Logo
5:10 pm - 6:35 pmSNN  Shannon-LHR London Heathrow
1h 25mnonstop
Multiple Airlines Logo
6:45 pm - 7:30 amLHR  London Heathrow-SNN Shannon
12h 45m2 stops Dublin Manchester
$212Multiple Airlines
Booking Insights

Price, demand and travel trends for Shannon to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Shannon to London Heathrow Airport?

Round-trip flights from Shannon to London Heathrow Airport typically range from $148 to $213. The lowest price found in the past 5 days was $121, on Aer Lingus.

What's the cheapest day of the week to fly from Shannon to London Heathrow Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Shannon to London Heathrow Airport. It’s 7% cheaper than the average day, while Wednesday is the most expensive, with prices 12% higher.

What’s the cheapest month to fly from Shannon to London Heathrow Airport?

•August is the cheapest month to fly from Shannon to London Heathrow Airport at $147 round-trip.
•October ($212) and May ($204) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 44% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Expert advice

Expert advice for your flight from Shannon to Heathrow

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Key details for Shannon to London Heathrow Airport flights

Low season

September

Cheapest flight

$56
Beat the crowds with an average 22% drop in travelers.
The most popular month to fly with an average 19% increase in travelers.
One-way flight from Shannon to London Heathrow Airport

When to book flights from Shannon to Heathrow

Are your dates flexible? Find out the best times to travel from Shannon to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Shannon to London Heathrow Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Shannon to London Heathrow Airport?

    These are the earliest and latest flight times available from Shannon to London Heathrow Airport:

    • Earliest: departs at 7:50 am and lands at 9:14 am
    • Latest: departs at 8:05 pm and lands at 9:29 pm.

    The flight takes about 1h 24m.

  • What cabin classes can I book on flights from Shannon to London Heathrow Airport?

    Two cabin classes are available on flights from Shannon to London Heathrow Airport:

    • Economy Class
    • Premium Economy Class

  • How long is a flight from Shannon to London Heathrow Airport?

    A nonstop flight from Shannon to London Heathrow Airport takes 1h 24m, covering 368 miles.

  • Do I need a passport to fly from Shannon to London Heathrow Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Shannon to London Heathrow Airport flight?

    Round-trip flights from Shannon to London Heathrow Airport range from $148 to $213, with an average of $174 over the past 12 months. Anything below $148 counts as a good deal.

  • How does on-time performance compare across airlines flying from Shannon to London Heathrow Airport?

    Aer Lingus is the only airline operating Shannon to London Heathrow Airport flights. 86% of its flights are on time.

  • What is the standard checked-bag allowance on flights from Shannon to London Heathrow Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $27–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Shannon to London Heathrow Airport?

    The Airbus A321neo family is used most often on this route, operated mainly by Aer Lingus and British Airways. Other aircraft seen on the route include Airbus A320neo variants.

  • How are flight departures from Shannon to London Heathrow Airport spread across the day?

    Evening is the busiest departure period on Shannon to London Heathrow Airport flights, with 66% of flights leaving in that window. Morning departures account for 34%, afternoon flights for 0%, and night flights for 0%.

  • How are flight prices from Shannon to London Heathrow Airport looking right now?

    One-way fares from Shannon to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $66, which is 37% below the typical average for this route.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates averaging $39 for economy cars. Top options include:

    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Rentacar

  • Which airports can I use when flying from Shannon to London Heathrow Airport?

    Flights from Shannon to London Heathrow Airport usually depart from Shannon (SNN) and arrive at London Heathrow (LHR).

  • What time of day has the fewest delays on flights from Shannon to London Heathrow Airport?

    Evening flights have the fewest delays on this route, while morning departures tend to have the most.

  • At what point is a flight considered delayed from Shannon to London Heathrow Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Shannon to London Heathrow Airport route, 14% of flights were delayed in the past 3 months, with delays averaging 1h 37m.

  • Can I save money by using flexible dates for flights from Shannon to London Heathrow Airport?

    Yes. Flexible dates can save you up to 18% on flights from Shannon to London Heathrow Airport. Thursday is the cheapest departure day at $162 round-trip on average, while Wednesday is the most expensive at $196, a difference of $34.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Shannon to London Heathrow Airport?

    Only Aer Lingus operates flights between Shannon and London Heathrow Airport.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Shannon to London Heathrow Airport flights?

    Among airlines operating Shannon to London Heathrow Airport flights:

    • Aer Lingus: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Shannon to London Heathrow Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aer Lingus: a cabin bag and a checked bag in Economy Class
    • British Airways: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Shannon to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Wednesday. On this route, Thursday flights average $162, about $34 less than Wednesday fares (17% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Shannon to London Heathrow Airport trip for August. Fares historically average $147 round-trip in that month - typically $65 less than the most expensive month, which is October (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.

    • Hilton London Heathrow Airport

Prefer to fly direct from Shannon to London Heathrow Airport?

 
Find which airlines fly direct from Shannon Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Shannon to London Heathrow

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

London Heathrow to Shannon

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

More options for your flight from Shannon to Heathrow

Complete your trip to London with a hotel stay or car rental