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Cheap flights from Galway to London Heathrow Airport from £36

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LHR
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Galway to Heathrow

Keep the following information in mind while searching for Galway to Heathrow flight deals. Data was last updated 17 September 2025.

Round-trip from

£70

One-way from

£36

Popular in

August

Cheapest in

February

Average price

£120
Aer Lingus
  • Aer Lingus
  • 15/10-16/10
  • Nonstop
  • 2h 55m total
  • Galway to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 11/10
  • Nonstop
  • 1h 25m total
  • Galway to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Galway to Heathrow

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

Tue 14/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Tue 21/1014:40LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 16/9£71
Sat 11/1017:30SNN - LHR
Nonstop1h 25mAer Lingus
Mon 13/1019:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 16/9£77
Fri 3/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Tue 7/1019:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 16/9£78
Fri 10/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Mon 13/1019:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 15/9£78
Wed 15/1016:55SNN - LHR
Nonstop1h 25mAer Lingus
Thu 16/1014:40LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 16/9£79
Tue 30/921:15SNN - LHR
Nonstop1h 25mAer Lingus
Wed 8/1019:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 14/9£86
Thu 25/921:15SNN - LHR
Nonstop1h 25mAer Lingus
Wed 1/1019:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 15/9£87
Sat 4/1017:30SNN - LHR
Nonstop1h 25mAer Lingus
Mon 6/1019:10LHR - SNN
Nonstop1h 25mAer Lingus
Deal found 15/9£89
Fri 31/1020:05SNN - LHR
Nonstop1h 20mAer Lingus
Fri 7/1118:05LHR - SNN
Nonstop1h 20mAer Lingus
Deal found 16/9£92
Wed 8/1016:55SNN - LHR
Nonstop1h 25mAer Lingus
Sat 11/1014:20LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 15/9£93
Fri 17/1021:15SNN - LHR
Nonstop1h 25mAer Lingus
Sun 19/1009:50LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 16/9£95
Thu 30/1020:05SNN - LHR
Nonstop1h 20mAer Lingus
Thu 6/1115:15LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 15/9£96

Cheapflights Fare Finder

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

Fly from

Galway

Fly to

Heathrow

Route

Depart

Return

Price

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Mon 13/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 20/10

19:10-20:35

Nonstop1h 25m

£77

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 3/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Fri 10/10

19:10-20:35

Nonstop1h 25m

£78

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 2/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Sun 5/10

09:50-11:20

Nonstop1h 30m

£78

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 4/10

17:30-18:55

Nonstop1h 25m

London Heathrow

Mon 6/10

19:10-20:35

Nonstop1h 25m

£89

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 30/10

20:05-21:25

Nonstop1h 20m

London Heathrow

Thu 6/11

15:15-16:45

Nonstop1h 30m

£96

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 23/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Fri 31/10

15:15-16:45

Nonstop1h 30m

£100

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 24/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 27/10

10:00-11:30

Nonstop1h 30m

£103

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sun 28/9

07:40-09:05

Nonstop1h 25m

London Heathrow

Tue 14/10

14:40-16:10

Nonstop1h 30m

£133

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Tue 14/10

13:00-20:20

2 stops7h 20m

London Heathrow

Tue 21/10

19:10-20:35

Nonstop1h 25m

£148

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 31/10

20:05-21:25

Nonstop1h 20m

London Heathrow

Fri 7/11

18:05-19:25

Nonstop1h 20m

£150

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Galway to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Galway 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 Galway to London Heathrow Airport

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

Currently, January is the cheapest month in which you can book a flight from Galway to London Heathrow Airport (average of £112). Flying from Galway to London Heathrow Airport 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 G4W to LHR?

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Galway to London Heathrow Airport as you normally would.

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

Use this chart to determine the cheapest time to fly return from Galway to Heathrow. Price data was last updated on 14 September 2025.

Travellers seeking maximum savings on their Galway to London Heathrow Airport flight should consider departing on Saturday evenings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Galway to London Heathrow Airport

Explore weekly flight availability from Galway to Heathrow. 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 September 2025.

The most flights from G4W to LHR are scheduled on a Monday (12 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 17 September 2025.
Check out reviews from past customers who have flown with Aer Lingus from Galway to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,274 reviews
Check prices

Comfort

7.1

Overall

7.2

Entertainment

6.9

Food

6.5

Crew

8.0

Boarding

7.3

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
1,274 reviews
Aer Lingus
7.2
Good
1,274 reviews
Check prices

Comfort

7.1

Overall

7.2

Entertainment

6.9

Food

6.5

Crew

8.0

Boarding

7.3

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 Galway to Heathrow. 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 Galway to London Heathrow Airport?

    Airlines like Aer Lingus fly from Galway to London Heathrow Airport in about 1h 25m. The time it takes to get you to your destination is usually consistent. The distance from Galway to London Heathrow Airport is about 368 mi. All flights are typically direct.

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

    Consider Air Canada (78%), British Airways (73%) or Aer Lingus (73%) when booking your flight. These represent the most reliable airlines when flying from Galway to London Heathrow Airport.

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

    Looking at all options, your cheapest flight can be booked for £36. While the most popular route (Shannon - London Heathrow) can be booked for £77 on average, our data indicates £137 when flying from Galway to London Heathrow Airport.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Galway to London Heathrow Airport (average of £112). Flying from Galway to London Heathrow Airport 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Swindon
Dartford
Guildford
Brentford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Galway to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Knock to Gatwick flights
Milltown (Kerry) to Stansted flights
Shannon to Southend flights
Knock to Southend flights
Knock to London City flights
Milltown (Kerry) to Gatwick flights

Top airline flying from Galway to Heathrow

Discover the top airline that operate flights from Galway to Heathrow. 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 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£70Average£135FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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

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

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 Galway to Heathrow.

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Galway today and book when prices fit your budget.

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