$67 Cheap Aer Lingus flights London (LHR) to Shannon (SNN)

View $67 flight on Mon, Oct 6, 2025Opens in a new window

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$67 Cheap Aer Lingus flights London (LHR) to Shannon (SNN)

Prices were available within the past 7 days and start at $67 for one-way flights and $149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, Sep 17 - Fri, Sep 19
LHR
London
SNN
Shannon
$149 Roundtrip, found 1 day ago
$149
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Wed, Sep 17 from London to Shannon, returning Fri, Sep 19, priced at $149 found 1 day ago
Aer Lingus
Wed, Oct 8 - Thu, Oct 9
LHR
London
SNN
Shannon
$149 Roundtrip, found 1 day ago
$149
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Wed, Oct 8 from London to Shannon, returning Thu, Oct 9, priced at $149 found 1 day ago
Aer Lingus
Thu, Sep 25 - Sun, Oct 5
LHR
London
SNN
Shannon
$152 Roundtrip, found 2 days ago
$152
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Thu, Sep 25 from London to Shannon, returning Sun, Oct 5, priced at $152 found 2 days ago
Aer Lingus
Wed, Oct 8 - Thu, Oct 9
LHR
London
SNN
Shannon
$159 Roundtrip, found 1 day ago
$159
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Wed, Oct 8 from London to Shannon, returning Thu, Oct 9, priced at $159 found 1 day ago
Aer Lingus
Fri, Oct 17 - Sun, Oct 19
LHR
London
SNN
Shannon
$159 Roundtrip, found 3 days ago
$159
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Fri, Oct 17 from London to Shannon, returning Sun, Oct 19, priced at $159 found 3 days ago
Aer Lingus
Mon, Sep 1 - Mon, Sep 8
LHR
London
SNN
Shannon
$164 Roundtrip, found 1 day ago
$164
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Mon, Sep 1 from London to Shannon, returning Mon, Sep 8, priced at $164 found 1 day ago
Flights from London (LHR) to Shannon (SNN)
Origin airport
Heathrow
Destination airport
Shannon
Airlines serving
Aer Lingus, British Airways
Popular airline
Aer Lingus
Distance
369 mi
Average flight time
1 hour 28 mins

Frequently asked questions

How much is an Aer Lingus flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
You can discover cheap round-trip Aer Lingus flights from $149 from LHR to SNN by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $67 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LHR to SNN with Aer Lingus?
January is one of the most affordable months to jet off to Shannon with Aer Lingus. You could also find great prices on one-way and return fares in February.
What is the cheapest time to book flights from Heathrow Airport (LHR) to Shannon Airport (SNN) with Aer Lingus?
Start your search for Aer Lingus flights from LHR to SNN about one month before you want to go. The cheapest time to book an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your itinerary or ticket type, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Travelers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Aer Lingus fly nonstop from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Yes, you can travel from Heathrow Airport (LHR) to Shannon Airport (SNN) on one of Aer Lingus's 20 weekly direct flights. Use our "Nonstop" and "Airline" filters to find the Aer Lingus flight that'll take you to SNN at your preferred time.
How long does it take to fly from LHR to SNN with Aer Lingus?
Leave Heathrow Airport (LHR) for Shannon Airport (SNN) on a direct Aer Lingus flight, and you'll be airborne for about 1h 25m.
Which day of the week has the most Aer Lingus flights from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Aer Lingus operates the most flights from Heathrow Airport (LHR) to Shannon Airport (SNN) on Wednesday. With up to 3 daily departures, you'll get the most choice and flexibility on this day.
What is the earliest Aer Lingus flight from LHR to SNN?
The first flight from LHR to SNN with Aer Lingus leaves at 10:00AM UTC+0. You'll land at 11:30AM UTC+0. The final Aer Lingus flight of the day takes off at 6:05PM UTC+0 and arrives at 7:25PM UTC+0. With 20% fewer cancellations for morning and mid-morning departures, jetting out early is typically the best way to go.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Aer Lingus fly into in Shannon?
Shannon Airport (SNN) is the primary Shannon hub for Aer Lingus flights from Heathrow Airport (LHR).
What kind of luggage can I take on an Aer Lingus flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
Aer Lingus allows you to bring 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches on standard economy flights from LHR to SNN. Additionally, you can take 1 cabin bag with you in the cabin. This hand luggage must not exceed 21 inches x 15 inches x 9 inches and weigh less than 22 lb. Baggage rules can vary depending on your fare type and cabin class, so check your booking or Aer Lingus's website to avoid any extra fees at the airport.
Why fly with Aer Lingus from LHR to SNN?
Offering a 4-star airline rating and a rewarding loyalty program, Aer Lingus is a popular option for many passengers heading from LHR to SNN. Also, if you're an Aer Lingus AerClub and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Aer Lingus fly from Heathrow Airport (LHR) to Shannon Airport (SNN)?
You'll likely be seated on an Airbus A321neo or an Airbus A320 when flying Aer Lingus from Heathrow Airport (LHR) to Shannon Airport (SNN). However, keep in mind that a different aircraft may be used due to operational reasons.
Can I change or cancel my Aer Lingus flight from Heathrow Airport (LHR) to Shannon Airport (SNN)?
It's generally possible to cancel or reschedule your flight, although there may be additional fees if you made your booking over 24 hours ago. Need flexible options? Apply the "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you need to revise your plans. To make changes, visit "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.