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Cheap flights from London Heathrow Airport to Shannon from £70

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SNN
22 Jan — 29 Jan1
1 adult

The best prices from London Heathrow to Shannon are usually found in February or January, booked 28 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Heathrow to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Shannon (SNN). 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 17 January 2025.

Round-trip from

£74

One-way from

£70

Popular in

December

Cheapest in

February

Average price

£121
Aer Lingus
  • Aer Lingus
  • 2/2-13/2
  • Nonstop
  • 2h 50m total
  • London to Shannon
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Aer Lingus
  • Aer Lingus
  • 8/5
  • Nonstop
  • 1h 30m total
  • London to Shannon
Search Deals
High demand for flights, 0% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Heathrow to Shannon

Cheapest flights from Heathrow to Shannon
Explore the most affordable flight options available from Heathrow to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Sun 2/210:00LHR - SNN
Nonstop1h 30mAer Lingus
Thu 13/220:05SNN - LHR
Nonstop1h 20mAer Lingus
Deal found 17/1£74
Fri 9/520:40LHR - SNN
1 stop19h 40mMultiple Airlines
Sun 18/521:15SNN - LHR
Nonstop1h 25mMultiple Airlines
Deal found 16/1£122
Thu 16/115:20LHR - SNN
Nonstop1h 25mBritish Airways
Mon 20/120:05SNN - LHR
Nonstop1h 20mBritish Airways
Deal found 16/1£216

Find flights from Heathrow to Shannon within your budget

Customise your flight search to find flights from Heathrow to Shannon 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 21/2

18:05-19:25

Nonstop1h 20m

Shannon

Sun 23/2

20:05-21:25

Nonstop1h 20m

£110

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 9/5

20:40-16:20

1 stop19h 40m

Shannon

Sun 18/5

21:15-22:40

Nonstop1h 25m

£122

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 25/3

18:05-19:25

Nonstop1h 20m

Shannon

Thu 27/3

20:05-21:25

Nonstop1h 20m

£218

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 8/5

14:40-16:10

Nonstop1h 30m

£70

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Wed 2/4

06:55-13:50

1 stop6h 55m

£79

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sun 16/2

15:20-16:45

Nonstop1h 25m

£118

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sun 25/5

08:30-07:30

1 stop23h 00m

£3,563

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Best time to book a flight from Heathrow to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Heathrow 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.

Travel insights for flights from Heathrow to Shannon

Get recent, data-driven insights about flights from Heathrow to Shannon including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Shannon. Price data was last updated on 10 January 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Shannon, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Shannon?

Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Shannon (average of £69). Flying from London Heathrow Airport to Shannon in July is currently the most expensive (average of £126). 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 LHR to SNN?

Find hourly flight availability from Heathrow to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

When flying from London Heathrow Airport to Shannon, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 5% versus a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Shannon?

Use this chart to determine the cheapest time to fly return from Heathrow to Shannon. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Shannon flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to Shannon

Explore weekly flight availability from Heathrow to Shannon. 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 17 January 2025.

The most flights from LHR to SNN are scheduled on a Monday (14 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 Shannon by month

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

In terms of precipitation, rainfall in Shannon ranges from 59.0 - 105.0 inches per month. October is typically the wettest month, when rainfall can reach 105.0 mm. April is typically the driest time to visit Shannon when rainfall is around 59.0 mm.

Temperature in Shannon by month

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

If weather is an important factor for your trip to Shannon, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.0 C).

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. 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 Shannon. Reviews last updated 17 January 2025.
United Airlines
7.4
Good
8,969 reviews
Check prices

Food

6.7

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 10

The staff were pleasant. The food was awful. The earpods were so poor quality I could not enjoy any of the films on offer.

United Airlines
7.4
Good
8,969 reviews
United Airlines
7.4
Good
8,969 reviews
Check prices

Food

6.7

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 10

The staff were pleasant. The food was awful. The earpods were so poor quality I could not enjoy any of the films on offer.

Aer Lingus
7.1
Good
1,077 reviews
United Airlines
7.4
Good
8,969 reviews
Check prices

Food

6.7

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 10

The staff were pleasant. The food was awful. The earpods were so poor quality I could not enjoy any of the films on offer.

British Airways
6.6
Okay
6,824 reviews
United Airlines
7.4
Good
8,969 reviews
Check prices

Food

6.7

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 10

The staff were pleasant. The food was awful. The earpods were so poor quality I could not enjoy any of the films on offer.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Shannon. 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 into for flights to Shannon from London Heathrow?

    For a flight from London Heathrow to Shannon, you will be flying into Shannon. Shannon (SNN) is just 2.1 mi from the center of the city. Shannon is the only Shannon airport and it handles 12 inbound flights from London Heathrow per day. 3 airlines have flights to Shannon from London Heathrow on a regular basis.

  • What are the cheapest airlines flying from London Heathrow Airport to Shannon round-trip?

    According to our current data, Aer Lingus (£74), and British Airways (£218) offers the cheapest pricing from London Heathrow Airport to Shannon. You may be able to fly from London Heathrow Airport to Shannon for 48% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from London Heathrow Airport to Shannon one-way?

    £70 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on British Airways and United Airlines, with prices starting from £118 and £3,563, respectively.

  • What are the most reliable airlines from London Heathrow Airport to Shannon?

    Before booking your flight to Shannon from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (0%), Qatar Airways (0%), Air Canada( 0%).

  • What are the cheapest flights from London Heathrow Airport to Shannon?

    While on average a flight from London Heathrow Airport to Shannon is generally £290, our data shows the cheapest flight currently is £81. When looking at the most popular route, (London Heathrow - Shannon), you can expect to pay £74 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Shannon 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 London Heathrow Airport to Shannon?

    Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Shannon (average of £69). Flying from London Heathrow Airport to Shannon in July is currently the most expensive (average of £126). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Tipperary
Ennis

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Alternative routes for Heathrow to Shannon

See prices for flight routes from nearby airports that may be better suited for you.
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Southend to Shannon flights

Top 3 airlines flying from Heathrow to Shannon

Discover the top 3 airlines that operate flights from Heathrow to Shannon. 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£32Average£45FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£97Average£145FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£177Average£236FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Shannon from Heathrow today with Cheapflights!

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

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 Heathrow to Shannon.

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

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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