Cheap flights from London to Shannon from $20 LGW, LHR, STN → SNN

Found recently, and the cheapest we hold

What have prices looked like?

Over 46 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $35 to $91.

At $144, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 3-night return fares leaving within 3 days of 1 Dec to compare.

Every date we hold

4 fares on 3 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $41.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $17 to $21.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 18 Nov to compare.

Every date we hold

10 fares on 4 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $19.

Return

Fares 30 to 59 days before departure were typically 39% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (46 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 7 to 13 days before departure were typically 10% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from London to Shannon?

The cheapest return found recently is $144 with Aer Lingus, 1 Dec to 4 Dec, found 4 days ago. The cheapest return we hold, of any age, is $41 with Ryanair, 5 Dec to 12 Dec, found 5 days ago. The cheapest return fare on each of 3 departure dates is usually $58 to $110.

How much is a one-way flight from London to Shannon?

The cheapest one-way found recently is $20 with Ryanair, 18 Nov, found 5 days ago. The cheapest one-way we hold, of any age, is $19 with Ryanair, 18 Nov, found 6 days ago. The cheapest one-way fare on each of 4 departure dates is usually $21 to $24.

What is the cheapest month to fly from London to Shannon?

December 2026 is the cheapest month for a return, from $41, 5 Dec to 12 Dec, found 5 days ago. November 2026 is the cheapest month for a one-way, from $19, 18 Nov, found 6 days ago.

How far ahead should I book a flight from London to Shannon?

In 46 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 39% lower than 0 to 6 days before departure. In 49 days of prices between 24 Sept and 11 Nov, one-way fares 7 to 13 days before departure were typically 10% lower than 0 to 6 days before departure.

Is there a direct flight from London to Shannon?

Yes, the cheapest nonstop return found recently is $144 with Aer Lingus, 1 Dec to 4 Dec, found 4 days ago. The cheapest nonstop one-way found recently is $20 with Ryanair, 18 Nov, found 5 days ago.

How long is the flight from London to Shannon?

The cheapest nonstop one-way found recently, with Ryanair on 18 Nov, takes 1 h 30 min from London Gatwick Airport (LGW) to Shannon Airport (SNN).

Which airlines have the cheapest flights from London to Shannon?

Between 16 Nov and 5 Dec, Ryanair has the cheapest return on 2 of the 3 departure dates we hold, and Aer Lingus on 1. Between 14 Nov and 7 Jan 2027, Ryanair has the cheapest one-way on all 4 departure dates we hold.