London to Shannon Flights on Aer Lingus from £50.34*

Promo Code

Book London (LON) to Shannon (SNN) flight deals*

Oct 2026
From£50.78*
Seen: 3 hrs ago
Each way/Economy
Nov 2026
From£51.26*
Seen: 7 hrs ago
Each way/Economy
Dec 2026
From£50.34*
Seen: 15 hrs ago
Each way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label £50.78
cmp-daily-histogram-bars-legend-max-price-aria-label £125.86
Displaying fares for October-2026
  • LHR–SNN, 12 Oct 2026 – 15 Oct 2026: From £76.76
    12

    Mo

    OCT

  • LHR–SNN, 13 Oct 2026 – 20 Oct 2026: From £63.03
    13

    Tu

  • LHR–SNN, 14 Oct 2026 – 18 Oct 2026: From £72.51
    14

    We

  • LHR–SNN, 15 Oct 2026 – 19 Oct 2026: From £75.27
    15

    Th

  • LHR–SNN, 16 Oct 2026 – 21 Oct 2026: From £84.76
    16

    Fr

  • LHR–SNN, 17 Oct 2026 – 19 Oct 2026: From £77.02
    17

    Sa

  • LHR–SNN, 18 Oct 2026 – 19 Oct 2026: From £63.76
    18

    Su

  • LHR–SNN, 19 Oct 2026 – 20 Oct 2026: From £51.26
    19

    Mo

  • LHR–SNN, 20 Oct 2026 – 20 Oct 2026: From £51.18
    20

    Tu

  • LHR–SNN, 21 Oct 2026 – 28 Oct 2026: From £50.78
    21

    We

  • LHR–SNN, 22 Oct 2026 – 10 Nov 2026: From £63.76
    22

    Th

  • LHR–SNN, 23 Oct 2026 – 27 Oct 2026: From £125.86
    23

    Fr

  • LHR–SNN, 24 Oct 2026 – 27 Oct 2026: From £92.62
    24

    Sa

  • LHR–SNN, 25 Oct 2026 – 29 Oct 2026: From £94.48
    25

    Su

  • LHR–SNN, 26 Oct 2026 – 27 Oct 2026: From £62.27
    26

    Mo

  • LHR–SNN, 27 Oct 2026 – 12 Nov 2026: From £61.26
    27

    Tu

  • LHR–SNN, 28 Oct 2026 – 12 Nov 2026: From £61.26
    28

    We

  • LHR–SNN, 29 Oct 2026 – 2 Nov 2026: From £63.83
    29

    Th

  • LHR–SNN, 30 Oct 2026 – 25 Feb 2027: From £61.26
    30

    Fr

  • LHR–SNN, 31 Oct 2026 – 10 Nov 2026: From £58.76
    31

    Sa

  • LHR–SNN, 1 Nov 2026 – 7 Nov 2026: From £51.45
    01

    Su

    NOV

  • LHR–SNN, 2 Nov 2026 – 7 Nov 2026: From £51.26
    02

    Mo

  • LHR–SNN, 3 Nov 2026 – 9 Nov 2026: From £51.26
    03

    Tu

  • LHR–SNN, 4 Nov 2026 – 9 Nov 2026: From £51.26
    04

    We

  • LHR–SNN, 5 Nov 2026 – 9 Nov 2026: From £58.76
    05

    Th

  • LHR–SNN, 6 Nov 2026 – 9 Nov 2026: From £60.95
    06

    Fr

  • LHR–SNN, 7 Nov 2026 – 7 Nov 2026: From £52.31
    07

    Sa

  • LON–SNN: cmp-view-offers-disclaimer. Check Availability
    08

    Su

  • LON–SNN: cmp-view-offers-disclaimer. Check Availability
    09

    Mo

  • LHR–SNN, 10 Nov 2026 – 12 Nov 2026: From £52.53
    10

    Tu

  • LHR–SNN, 11 Nov 2026 – 16 Nov 2026: From £51.26
    11

    We

    • Range£50.78-£125.86

    * Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.

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    Book London to Shannon flight deals*

    £
    Book London to Shannon flight deals*
    From
    To
    Fare Type
    Dates
    Price
    London (LHR)Shannon (SNN)Each way
    /
    Economy    		18 May 2027 - 24 May 2027

    From

    £68.86

    Seen: 11 hrs ago

    London (LHR)Shannon (SNN)Each way
    /
    Economy    		19 May 2027 - 24 May 2027

    From

    £69.66

    Seen: 11 hrs ago

    London (LHR)Shannon (SNN)Each way
    /
    Economy    		6 May 2027 - 20 May 2027

    From

    £71.36

    Seen: 7 hrs ago

    London (LHR)Shannon (SNN)Each way
    /
    Economy    		17 May 2027 - 24 May 2027

    From

    £71.36

    Seen: 11 hrs ago

    London (LHR)Shannon (SNN)Each way
    /
    Economy    		25 Jun 2027 - 28 Jun 2027

    From

    £72.33

    Seen: 5 hrs ago

    * Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.