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Cheap flights from London Heathrow Airport to Galway from £48

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SNN
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Galway are usually found in January or March, booked 80 days in advance, depart on a Friday or Thursday and return on a Sunday

Cheap flight deals from Heathrow to Galway

Keep the following information in mind while searching for Heathrow to Galway flight deals. Data was last updated 5 November 2025.

Round-trip from

£94

One-way from

£48

Popular in

December

Cheapest in

January

Average price

£122
Aer Lingus
  • Aer Lingus
  • 2/12-9/12
  • Nonstop
  • 2h 40m total
  • London to Galway
Search Deals
Aer Lingus
  • Aer Lingus
  • 3/12
  • Nonstop
  • 1h 20m total
  • London to Galway
Search Deals
High demand for flights, 8% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Heathrow to Galway

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Galway
Explore the most affordable flight options available from Heathrow to Galway. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.

Tue 2/1218:05LHR - SNN
Nonstop1h 20mAer Lingus
Tue 9/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Deal found 4/11£94
Mon 1/1218:05LHR - SNN
Nonstop1h 20mAer Lingus
Mon 8/1217:30SNN - LHR
Nonstop1h 25mAer Lingus
Deal found 3/11£95
Thu 4/1215:15LHR - SNN
Nonstop1h 30mAer Lingus
Sun 7/1207:50SNN - LHR
Nonstop1h 25mAer Lingus
Deal found 3/11£96
Fri 5/1218:05LHR - SNN
Nonstop1h 20mAer Lingus
Sun 7/1207:50SNN - LHR
Nonstop1h 25mAer Lingus
Deal found 4/11£96
Tue 25/1110:00LHR - SNN
Nonstop1h 30mAer Lingus
Sat 29/1117:25SNN - LHR
Nonstop1h 25mAer Lingus
Deal found 4/11£99
Wed 12/1115:15LHR - SNN
Nonstop1h 30mAer Lingus
Wed 19/1117:30SNN - LHR
Nonstop1h 25mAer Lingus
Deal found 3/11£101
Fri 5/1210:00LHR - SNN
Nonstop1h 30mAer Lingus
Fri 12/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Deal found 4/11£102
Sat 6/1214:15LHR - SNN
Nonstop1h 30mAer Lingus
Wed 17/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Deal found 3/11£106
Mon 17/1118:05LHR - SNN
Nonstop1h 20mAer Lingus
Thu 20/1120:05SNN - LHR
Nonstop1h 20mAer Lingus
Deal found 3/11£113
Fri 14/1118:05LHR - SNN
Nonstop1h 20mAer Lingus
Sun 16/1120:05SNN - LHR
Nonstop1h 20mAer Lingus
Deal found 3/11£114
Thu 27/1118:05LHR - SNN
Nonstop1h 20mAer Lingus
Sat 29/1117:25SNN - LHR
Nonstop1h 25mAer Lingus
Deal found 4/11£115

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Galway 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 5 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Galway that are best for you.

Fly from

Heathrow

Fly to

Galway

Route

Depart

Return

Price

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 5/12

18:05-19:25

Nonstop1h 20m

Shannon

Sun 7/12

07:50-09:15

Nonstop1h 25m

£96

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 8/1

15:15-16:45

Nonstop1h 30m

Shannon

Sun 11/1

20:05-21:25

Nonstop1h 20m

£97

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Tue 2/12

10:00-11:30

Nonstop1h 30m

Shannon

Tue 9/12

20:05-21:25

Nonstop1h 20m

£98

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 5/12

18:05-19:25

Nonstop1h 20m

Shannon

Fri 12/12

17:30-18:55

Nonstop1h 25m

£101

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 6/12

14:15-15:45

Nonstop1h 30m

Shannon

Wed 17/12

20:05-21:25

Nonstop1h 20m

£106

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Thu 27/11

18:05-19:25

Nonstop1h 20m

Shannon

Sat 29/11

17:25-18:50

Nonstop1h 25m

£115

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 6/12

14:15-15:45

Nonstop1h 30m

Shannon

Sat 13/12

17:25-18:50

Nonstop1h 25m

£130

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Sat 25/4

09:50-11:20

Nonstop1h 30m

Shannon

Wed 29/4

21:15-22:40

Nonstop1h 25m

£140

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 9/1

18:05-19:25

Nonstop1h 20m

Shannon

Mon 12/1

20:05-21:25

Nonstop1h 20m

£145

LondonShannon

LHR - SNN

LHRSNN

London Heathrow

Fri 14/11

15:15-16:45

Nonstop1h 30m

Shannon

Sun 16/11

20:05-21:25

Nonstop1h 20m

£147

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Heathrow to Galway

Have a flexible travel schedule? Discover the best time to fly to Galway 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Galway

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Galway. Price data was last updated on 31 October 2025.

The price you pay for your flight from London Heathrow Airport to Galway may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Galway (average of £70). Flying from London Heathrow Airport to Galway in August is currently the most expensive (average of £106). 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 G4W?

Find hourly flight availability from Heathrow to Galway. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 November 2025.

It’s typically best to fly out from London Heathrow Airport to Galway at midday. Doing so could potentially save you 49% on the flight price compared to flying in the morning, which is usually more expensive.

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

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

Travellers seeking maximum savings on their London Heathrow Airport to Galway flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday 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 Galway

Explore weekly flight availability from Heathrow to Galway. 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 5 November 2025.

The most flights from LHR to G4W are scheduled on a Monday (13 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 Galway

Get insights into the airlines that provide service to Galway. 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 Galway. Reviews last updated 5 November 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Galway, such as Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Overall

7.2

Boarding

7.4

Comfort

7.1

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
Aer Lingus
7.2
Good
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Food

6.6

Overall

7.2

Boarding

7.4

Comfort

7.1

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.

Related info for your journey

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

  • How long is the flight from London Heathrow Airport to Galway?

    Airlines like Aer Lingus fly from London Heathrow Airport to Galway in about 1h 20m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 368 mi. Most flights are nonstop.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Galway are Qatar Airways (66%), Aer Lingus (66%) and British Airways (66%).

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

    While on average a flight from London Heathrow Airport to Galway is generally £487, our data shows the cheapest flight currently is £70. When looking at the most popular route, (London Heathrow - Shannon), you can expect to pay £94 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Galway 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 Galway?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Galway (average of £70). Flying from London Heathrow Airport to Galway in August is currently the most expensive (average of £106). 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

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Alternative routes for Heathrow to Galway

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Heathrow to Galway

Discover the top airline that operate flights from Heathrow to Galway. 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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£80Average£142FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Galway, users can toggle the no change fees filter when performing a flight search.

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