Cheap Flights From Heathrow (LHR) To Shannon (SNN)

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Cheapest Flights from London (LHR) to Shannon (SNN)

The cheapest flights to Shannon found within the past 7 days were CA $190 round trip and CA $108 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Jan. 18 - Wed, Jan. 21
LHR
London
SNN
Shannon
CA $190 Roundtrip, found 21 hours ago
CA $190
Roundtrip
found 21 hours ago
Select Aer Lingus flight, departing Sun, Jan. 18 from London to Shannon, returning Wed, Jan. 21, priced at CA $190 found 21 hours ago
Sun, Jan. 18 - Wed, Jan. 21
LHR
London
SNN
Shannon
CA $193 Roundtrip, found 21 hours ago
CA $193
Roundtrip
found 21 hours ago
Select Aer Lingus flight, departing Sun, Jan. 18 from London to Shannon, returning Wed, Jan. 21, priced at CA $193 found 21 hours ago
Thu, Oct. 2 - Sun, Oct. 5
LHR
London
SNN
Shannon
CA $207 Roundtrip, found 6 days ago
CA $207
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Thu, Oct. 2 from London to Shannon, returning Sun, Oct. 5, priced at CA $207 found 6 days ago
Thu, Sep. 11 - Mon, Sep. 15
LHR
London
SNN
Shannon
CA $241 Roundtrip, found 5 days ago
CA $241
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Sep. 11 from London to Shannon, returning Mon, Sep. 15, priced at CA $241 found 5 days ago
Thu, Sep. 11 - Mon, Sep. 15
LHR
London
SNN
Shannon
CA $250 Roundtrip, found 5 days ago
CA $250
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Sep. 11 from London to Shannon, returning Mon, Sep. 15, priced at CA $250 found 5 days ago
Thu, Sep. 11 - Mon, Sep. 15
LHR
London
SNN
Shannon
CA $262 Roundtrip, found 5 days ago
CA $262
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Sep. 11 from London to Shannon, returning Mon, Sep. 15, priced at CA $262 found 5 days ago
Thu, Oct. 2 - Sun, Oct. 5
LHR
London
SNN
Shannon
CA $262 Roundtrip, found 6 days ago
CA $262
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Thu, Oct. 2 from London to Shannon, returning Sun, Oct. 5, priced at CA $262 found 6 days ago
Thu, Oct. 2 - Sun, Oct. 5
LHR
London
SNN
Shannon
CA $266 Roundtrip, found 6 days ago
CA $266
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Thu, Oct. 2 from London to Shannon, returning Sun, Oct. 5, priced at CA $266 found 6 days ago
Thu, Sep. 11 - Mon, Sep. 15
LHR
London
SNN
Shannon
CA $275 Roundtrip, found 5 days ago
CA $275
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Sep. 11 from London to Shannon, returning Mon, Sep. 15, priced at CA $275 found 5 days ago
Thu, Sep. 11 - Mon, Sep. 15
LHR
London
SNN
Shannon
CA $284 Roundtrip, found 5 days ago
CA $284
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Sep. 11 from London to Shannon, returning Mon, Sep. 15, priced at CA $284 found 5 days ago

Frequently asked questions

Are there direct flights from Heathrow Airport (LHR) to Shannon Airport?
Be a wise wanderer and book a direct flight from London Heathrow to Shannon Airport with Aer Lingus. This airline is the smart choice if you'd rather reach Shannon as quickly as possible.
What airlines fly from Heathrow Airport to Shannon Airport (SNN)?
If you're searching for an airline that flies directly from LHR to SNN and is highly rated by other travelers, look no further than Aer Lingus. They offer as many as 30 services on this route every month.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.