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Cheap flights from Shannon to London from £29

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/6. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LON
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Shannon to London are usually found in January or May, booked 46 days in advance, depart on a Wednesday or Friday and return on a Saturday

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 13 June 2025.

Round-trip from

£29

Popular in

October

Cheapest in

January

Average price

£79

Good round-trip deal

£42 or less

Good one-way deal

£13 or less
Ryanair
  • Ryanair
  • 23/6-24/6
  • Nonstop
  • 3h 00m total
  • Shannon to London
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Highest demand for flights based on searches. 12% potential increase in price (£10 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in June 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 13 June 2025.

Sat 26/706:45SNN - STN
Nonstop1h 30mRyanair
Sat 2/817:10STN - SNN
Nonstop1h 30mRyanair
Deal found 11/6£45
Sat 26/713:35SNN - LGW
Nonstop1h 35mRyanair
Sat 2/815:45LGW - SNN
Nonstop1h 35mRyanair
Deal found 11/6£64
Tue 8/721:10SNN - STN
1 stop10h 50mMultiple Airlines
Mon 14/708:00STN - SNN
Nonstop1h 30mMultiple Airlines
Deal found 11/6£84
Mon 23/621:15SNN - LHR
Nonstop1h 25mAer Lingus
Tue 24/619:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 12/6£89
Sat 26/716:45SNN - LGW
1 stop5h 30mMultiple Airlines
Sat 2/815:45LGW - SNN
Nonstop1h 35mMultiple Airlines
Deal found 11/6£119
Tue 1/721:10SNN - LTN
1 stop25h 15mMultiple Airlines
Mon 7/720:00LTN - SNN
2 stops28h 10mMultiple Airlines
Deal found 11/6£129
Fri 27/621:15SNN - LHR
Nonstop1h 25mMultiple Airlines
Tue 1/719:10LHR - SNN
Nonstop1h 25mMultiple Airlines
Deal found 11/6£138
Sat 26/708:50SNN - LTN
2 stops12h 55mRyanair
Sat 2/822:10LTN - SNN
2 stops14h 30mRyanair
Deal found 11/6£163
Tue 17/621:15SNN - LHR
Nonstop1h 25mBritish Airways
Sun 22/609:50LHR - SNN
Nonstop1h 30mBritish Airways
Deal found 11/6£210
Wed 16/720:10SNN - SEN
1 stop16h 45mMultiple Airlines
Wed 23/717:30SEN - SNN
1 stop28h 10mMultiple Airlines
Deal found 11/6£232

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 13 June 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 - LGW

SNNLGW

Shannon

Wed 16/7

16:25-18:00

Nonstop1h 35m

London Gatwick

Wed 23/7

18:45-20:20

Nonstop1h 35m

£69

ShannonLondon

SNN - STN

SNNSTN

Shannon

Fri 18/7

23:25-00:55

Nonstop1h 30m

London Stansted

Sun 20/7

07:55-09:25

Nonstop1h 30m

£75

ShannonLondon

SNN - STN

SNNSTN

Shannon

Tue 8/7

21:10-08:00

1 stop10h 50m

London Stansted

Mon 14/7

08:00-09:30

Nonstop1h 30m

£84

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Mon 23/6

21:15-22:40

Nonstop1h 25m

London Heathrow

Tue 24/6

19:10-20:35

Nonstop1h 25m

£89

ShannonLondon

SNN - LGW

SNNLGW

Shannon

Sat 26/7

16:45-22:15

1 stop5h 30m

London Gatwick

Sat 2/8

15:45-17:20

Nonstop1h 35m

£119

ShannonLondon

SNN - LTN

SNNLTN

Shannon

Tue 1/7

21:10-22:25

1 stop25h 15m

London Luton

Mon 7/7

20:00-00:10

2 stops28h 10m

£129

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 27/6

21:15-22:40

Nonstop1h 25m

London Heathrow

Tue 1/7

19:10-20:35

Nonstop1h 25m

£138

ShannonLondon

SNN - LTN

SNNLTN

Shannon

Sat 26/7

08:50-21:45

2 stops12h 55m

London Luton

Sat 2/8

22:10-12:40

2 stops14h 30m

£163

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 31/7

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 1/9

19:10-20:35

Nonstop1h 25m

£210

ShannonLondon

SNN - SEN

SNNSEN

Shannon

Wed 16/7

20:10-12:55

1 stop16h 45m

London Southend

Wed 23/7

17:30-21:40

1 stop28h 10m

£232

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 25 results
1
2
3

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

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

Use this chart to determine the optimal time to book a return flight from Shannon to London. Price data was last updated on 9 June 2025.

The best time to book flights from Shannon, Clare to London is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 13 June 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 55% 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 13 June 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).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 13 June 2025.
Read reviews from past customers who have flown United Airlines, JetBlue and Aer Lingus from Shannon to London. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
JetBlue
7.3
Good
2,923 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
Aer Lingus
7.1
Good
1,118 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
Ryanair
6.9
Okay
5,123 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
British Airways
6.6
Okay
7,011 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA

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.

  • 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 £29. Additional return tickets that might be worth considering are offered by Aer Lingus and British Airways, with the lowest prices starting at £89 and £210, respectively. These flights start at 69% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Shannon, Clare to London one-way?

    The cheapest airline one-way is Ryanair, with whom users have recently found tickets for as low as £54. However, be on the lookout for offers from Aer Lingus and British Airways, as they are both options that can get you from Shannon, Clare to London for a low price.

  • 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 Stansted or Shannon - London Gatwick.

  • 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 (90%), Aer Lingus (85%), British Airways (85%).

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

    On average you can expect to pay £135 for a flight from Shannon, Clare to London. The cheapest flight overall is £46 while the most popular route, (Shannon - London Heathrow) is currently priced at £105.

  • 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 Shannon?

Book flights to Shannon if you plan to visit one of these locations
Deal
Hounslow
Croydon
Milton Keynes
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Dartford
Guildford

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Alternative routes for Shannon to London

See prices for flight routes from nearby airports that may be better suited for you.
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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£60FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£70Average£118FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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