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Shannon

$112+ Cheap flights from Heathrow (LHR) to Shannon (SNN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SNN
Mar 11 — Mar 181
Tue 3/11
Tue 3/18
1 adult, Economy
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The best prices from London Heathrow to Shannon are usually found in January or February, booked 80 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

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 March 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$112
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$156

Good round-trip deal

$190 or less

Good one-way deal

$103 or less
Provider with most accurate pricing for London Heathrow-Shannon flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Shannon flights.
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From London Heathrow to Shannon
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High demand for flights, 5% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from London Heathrow to Shannon.
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Price to beat on a one-way flight from London Heathrow to Shannon.
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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 March 6, 2025.

This Mytrip deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/147:50 amLHR - SNN
2 stops10h 20mMultiple Airlines
Sat 3/158:25 pmSNN - LHR
2 stops18h 00mMultiple Airlines
Deal found 3/4$935
This British Airways deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2510:00 amLHR - SNN
Nonstop1h 30mBritish Airways
Thu 3/272:45 pmSNN - LHR
1 stop15h 10mBritish Airways
Deal found 3/5$3,350
This Booking.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/41:20 pmLHR - SNN
1 stop16h 35mAer Lingus
Wed 7/92:40 pmSNN - LHR
1 stop19h 00mAer Lingus
Deal found 3/5$4,208
This Lufthansa deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2612:00 pmLHR - SNN
1 stop22h 15mLufthansa
Mon 4/2812:30 pmSNN - LHR
1 stop22h 55mLufthansa
Deal found 3/5$15,987
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:05 amLHR - SNN
1 stop20h 25mUnited Airlines
Fri 8/299:30 amSNN - LHR
1 stop20h 50mUnited Airlines
Deal found 3/5$17,435

Find flights from Heathrow to Shannon within your budget

Customize 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 2,558,603 searches. Data last updated March 6, 2025.

Fly from

Heathrow

Fly to

Shannon

Route

Depart

Return

Price

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 4/3

2:40 pm-4:10 pm

Nonstop1h 30m

Shannon

Thu 4/10

7:10 am-6:50 pm

2 stops11h 40m

$2,394

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 3/25

10:00 am-11:30 am

Nonstop1h 30m

Shannon

Thu 3/27

2:45 pm-5:55 am

1 stop15h 10m

$3,350

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 7/4

1:20 pm-5:55 am

1 stop16h 35m

Shannon

Wed 7/9

2:40 pm-9:40 am

1 stop19h 00m

$4,208

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 4/26

12:00 pm-10:15 am

1 stop22h 15m

Shannon

Mon 4/28

12:30 pm-11:25 am

1 stop22h 55m

$15,987

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 8/22

11:05 am-7:30 am

1 stop20h 25m

Shannon

Fri 8/29

9:30 am-6:20 am

1 stop20h 50m

$17,435

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 3/20

3:15 pm-6:10 pm

2 stops26h 55m

$119

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 3/13

6:05 pm-7:25 pm

Nonstop1h 20m

$124

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 6/27

7:10 pm-8:35 pm

Nonstop1h 25m

$149

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 5/24

11:05 am-7:30 am

1 stop20h 25m

$4,540

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Compare providers for flights from Heathrow to Shannon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Shannon in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Shannon, Clare flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Shannon, Clare flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Shannon, Clare flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Shannon, Clare flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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, Clare?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Shannon. Price data was last updated on February 28, 2025.

The best time to book flights from London Heathrow Airport to Shannon, Clare is 26 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 London Heathrow Airport to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Shannon, Clare (average of $533). Flying from London Heathrow Airport to Shannon, Clare in June is currently the most expensive (average of $1,007). 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 March 6, 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Shannon, Clare in the afternoon. If you’re flexible enough to do this you can expect to save up to 77% on your trip compared to booking a flight in the morning.

Weekly flight availability from London Heathrow Airport to Shannon, Clare

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 March 6, 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, Clare ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon, Clare when rainfall is around 2.3 in.

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, Clare, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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 March 6, 2025.
United Airlines
7.4
Good
8,653 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20

6.0
Good

May,Apr 2024

EDI - IAD

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
8,653 reviews
United Airlines
7.4
Good
8,653 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20

6.0
Good

May,Apr 2024

EDI - IAD

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
7.0
Good
1,061 reviews
United Airlines
7.4
Good
8,653 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20

6.0
Good

May,Apr 2024

EDI - IAD

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

Lufthansa
6.7
Okay
6,966 reviews
United Airlines
7.4
Good
8,653 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20

6.0
Good

May,Apr 2024

EDI - IAD

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
6,735 reviews
United Airlines
7.4
Good
8,653 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20

6.0
Good

May,Apr 2024

EDI - IAD

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?

    Shannon (SNN), located 2.1 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Shannon. 1 airline have flights to Shannon from London Heathrow on a regular basis. Booking flights from London Heathrow to Shannon should not be difficult; the airport handles an average of 12 inbound flights from London Heathrow per day.

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

    Aer Lingus, at $112, was found to be the cheapest airline from London Heathrow Airport to Shannon, Clare.Alternate airlines to your destination round-trip include British Airways and Lufthansa. These flights start at 35% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from London Heathrow Airport to Shannon, Clare are Aer Lingus ($124), British Airways ($149), and United Airlines ($4,540).

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

    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 London Heathrow Airport to Shannon, Clare on time: American Airlines (0%), Qatar Airways (0%), Air Canada (0%).

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

    On average you can expect to pay $323 for a flight from London Heathrow Airport to Shannon, Clare. The cheapest flight overall is $65 while the most popular route, (London Heathrow - Shannon) is currently priced at $17,261.

  • 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 vacation 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, Clare?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Shannon, Clare (average of $533). Flying from London Heathrow Airport to Shannon, Clare in June is currently the most expensive (average of $1,007). 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.

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Alternative routes for Heathrow to Shannon

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Heathrow to Dublin flights
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Top airline flying from Heathrow to Shannon

Discover the top airline 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 2,558,603 searches. Data last updated March 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$122Average$186FlexibilityNo cancel feeOn-timeN/A
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