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Cheap flights from Shannon to London from £16

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LON
3 Sep — 10 Sep1
1 adult

Cheap flight deals from Shannon to London

Discover tips and strategies to find the most affordable flight options for your journey from Shannon (SNN) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 August 2025.

Round-trip from

£32

One-way from

£16

Popular in

October

Cheapest in

January

Average price

£132

Good round-trip deal

£20 or less

Good one-way deal

£25 or less
Ryanair
  • Ryanair
  • 25/9-27/9
  • Nonstop
  • 3h 00m total
  • Shannon to London
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Ryanair
  • Ryanair
  • 3/9
  • Nonstop
  • 1h 30m total
  • Shannon to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£3 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Shannon to London (LON).
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Price to beat on a one-way flight from Shannon to London (LON).
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Find flight deals from Shannon to London

Cheapest flights from Shannon to London
Explore the most affordable flight options available from Shannon to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Thu 25/921:50SNN - STN
Nonstop1h 30mRyanair
Sat 27/917:10STN - SNN
Nonstop1h 30mRyanair
Deal found 27/8£32
Fri 5/923:25SNN - STN
Nonstop1h 30mRyanair
Sun 7/907:55STN - SNN
Nonstop1h 30mRyanair
Deal found 28/8£33
Thu 4/921:50SNN - STN
Nonstop1h 30mRyanair
Sat 6/917:10STN - SNN
Nonstop1h 30mRyanair
Deal found 27/8£35
Wed 10/920:45SNN - STN
Nonstop1h 30mRyanair
Sat 13/917:10STN - SNN
Nonstop1h 30mRyanair
Deal found 27/8£36
Wed 10/916:25SNN - LGW
Nonstop1h 35mRyanair
Sat 13/915:45LGW - SNN
Nonstop1h 35mRyanair
Deal found 27/8£38
Sat 11/1019:30SNN - STN
Nonstop1h 30mRyanair
Sat 18/1017:10STN - SNN
Nonstop1h 30mRyanair
Deal found 27/8£38
Mon 13/1012:40SNN - LGW
Nonstop1h 35mRyanair
Tue 14/1015:00LGW - SNN
Nonstop1h 35mRyanair
Deal found 27/8£40
Fri 5/923:25SNN - STN
Nonstop1h 30mRyanair
Mon 8/908:00STN - SNN
Nonstop1h 30mRyanair
Deal found 27/8£41
Sat 11/1013:35SNN - LGW
Nonstop1h 35mRyanair
Sat 18/1015:45LGW - SNN
Nonstop1h 35mRyanair
Deal found 27/8£44
Fri 17/1016:55SNN - LGW
Nonstop1h 35mRyanair
Sat 18/1015:45LGW - SNN
Nonstop1h 35mRyanair
Deal found 27/8£47
Fri 5/1222:00SNN - STN
Nonstop1h 35mRyanair
Mon 8/1207:50STN - SNN
Nonstop1h 35mRyanair
Deal found 27/8£47
Sun 12/1011:20SNN - LGW
Nonstop1h 35mRyanair
Sun 19/1013:20LGW - SNN
Nonstop1h 35mRyanair
Deal found 28/8£53

Cheapflights Fare Finder

 
Customise your flight search to find flights from Shannon to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 August 2025.
Use the filters below to find and compare flights from Shannon to London that are best for you.

Fly from

Shannon

Fly to

London

Route

Depart

Return

Price

ShannonLondon

SNN - STN

SNNSTN

Shannon

Fri 17/10

23:25-00:55

Nonstop1h 30m

London Stansted

Sat 18/10

17:10-18:40

Nonstop1h 30m

£32

ShannonLondon

SNN - STN

SNNSTN

Shannon

Sun 12/10

20:40-22:10

Nonstop1h 30m

London Stansted

Sun 19/10

07:55-09:25

Nonstop1h 30m

£32

ShannonLondon

SNN - STN

SNNSTN

Shannon

Thu 25/9

21:50-23:20

Nonstop1h 30m

London Stansted

Sat 27/9

17:10-18:40

Nonstop1h 30m

£32

ShannonLondon

SNN - STN

SNNSTN

Shannon

Thu 25/9

06:40-08:10

Nonstop1h 30m

London Stansted

Thu 2/10

19:55-21:25

Nonstop1h 30m

£32

ShannonLondon

SNN - STN

SNNSTN

Shannon

Wed 24/9

06:05-07:35

Nonstop1h 30m

London Stansted

Wed 1/10

08:00-09:30

Nonstop1h 30m

£32

ShannonLondon

SNN - STN

SNNSTN

Shannon

Sat 11/10

06:45-08:15

Nonstop1h 30m

London Stansted

Sat 18/10

17:10-18:40

Nonstop1h 30m

£32

ShannonLondon

SNN - STN

SNNSTN

Shannon

Wed 10/9

20:45-22:15

Nonstop1h 30m

London Stansted

Sat 13/9

17:10-18:40

Nonstop1h 30m

£36

ShannonLondon

SNN - LGW

SNNLGW

Shannon

Sat 11/10

13:35-15:10

Nonstop1h 35m

London Gatwick

Sat 18/10

15:45-17:20

Nonstop1h 35m

£38

ShannonLondon

SNN - LGW

SNNLGW

Shannon

Wed 24/9

16:25-18:00

Nonstop1h 35m

London Gatwick

Wed 1/10

18:45-20:20

Nonstop1h 35m

£38

ShannonLondon

SNN - LGW

SNNLGW

Shannon

Wed 10/9

16:25-18:00

Nonstop1h 35m

London Gatwick

Sat 13/9

15:45-17:20

Nonstop1h 35m

£38

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 60 results
1
2
3
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6

Best time to book a flight from Shannon to London

Have a flexible travel schedule? Discover the best time to fly to London from Shannon with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Shannon to London

What is the cheapest month to book a flight from Shannon, Clare to London?

Currently, January is the cheapest month in which you can book a flight from Shannon, Clare to London (average of £112). Flying from Shannon, Clare to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SNN to LON?

Find hourly flight availability from Shannon to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 August 2025.

One of the essential ways to save on airfare from Shannon, Clare to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 40% on airfare.

Weekly flight availability from Shannon, Clare to London

Explore weekly flight availability from Shannon to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 August 2025.

The most flights from SNN to LON are scheduled on a Thursday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 29 August 2025.
Read through reviews of airlines operating flights from Shannon to London, such as Aer Lingus and Ryanair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,240 reviews
Check prices

Comfort

7.1

Food

6.5

Entertainment

6.9

Boarding

7.3

Crew

8.0

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Aer Lingus
7.2
Good
1,240 reviews
Aer Lingus
7.2
Good
1,240 reviews
Check prices

Comfort

7.1

Food

6.5

Entertainment

6.9

Boarding

7.3

Crew

8.0

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Ryanair
6.8
Okay
5,153 reviews
Aer Lingus
7.2
Good
1,240 reviews
Check prices

Comfort

7.1

Food

6.5

Entertainment

6.9

Boarding

7.3

Crew

8.0

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.

Related info for your journey

Find useful and relevant information for your journey from Shannon to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Shannon to London?

    If you book a flight to London from Shannon, you will be flying from Shannon, which is the city’s only airport. Shannon (SNN) is located 2.1 mi from the center of Shannon. There are 12 flights from Shannon to London per day from 2 different airlines.

  • How long is the flight from Shannon, Clare to London?

    Ryanair and Aer Lingus can get you from Shannon, Clare to London in just under 1h 25m. Your travel time will be generally consistent. Shannon, Clare and London are separated by a distance of 368 mi. All flights are typically direct.

  • What are the cheapest airlines flying from Shannon, Clare to London round-trip?

    Flying on Ryanair is currently your cheapest option to London, with prices starting at £35. Another option worth looking into is Aer Lingus, starting at £70 return. These flights start at 65% lower than the current average price 3 months from now.

  • What are the most popular routes from Shannon, Clare to London?

    The most popular route from Shannon, Clare to London is Shannon - London Heathrow. You may also consider Shannon - London Gatwick or Shannon - London Luton.

  • What are the most reliable airlines from Shannon, Clare to London?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Shannon, Clare to London on time: Air Canada (85%), Aer Lingus (84%), British Airways (83%).

  • What are the cheapest flights from Shannon, Clare to London?

    On average you can expect to pay £100 for a flight from Shannon, Clare to London. The cheapest flight overall is £44 while the most popular route, (Shannon - London Heathrow) is currently priced at £91.

  • Can I find deals for flights from Shannon to London that include hotel bookings?

    Yes. In addition to deals on Shannon to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Shannon to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to London.

  • Can I find deals for business class flights from Shannon to London?

    Yes. Cheapflights offers flight deals from Shannon to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Shannon, Clare to London?

    Currently, January is the cheapest month in which you can book a flight from Shannon, Clare to London (average of £112). Flying from Shannon, Clare to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Deal
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Top 2 airlines flying from Shannon to London

Discover the top 2 airlines that operate flights from Shannon to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£35Average£99FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£70Average£128FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Shannon to London?

When you search for this flight from Shannon to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Shannon to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Shannon to London.

Can Cheapflights find flights from Shannon to London with no change fees?

Yes! Cheapflights helps users easily find flights from Shannon to London with no change fees.

Can Cheapflights notify me if prices for flights from Shannon to London become cheaper?

Not ready to book yet? You can track prices for flights from Shannon to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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