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Cheap flights from Galway to London Heathrow Airport

SNN — LHR
17 Nov — 24 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Galway to Heathrow

Popular in

June

Cheapest in

January

Average price

£134
Highest demand for flights based on searches. 11% potential increase in price (£12 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

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

What is the cheapest time of day to fly from G4W to LHR?

It’s typically best to fly out from Galway to London Heathrow Airport in the evening. Doing so could potentially save you 73% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Heathrow

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
7.3
Good
1,843 reviews
Check prices

Comfort

7.2

Food

6.7

Boarding

7.5

Overall

7.3

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Aer Lingus
7.3
Good
1,843 reviews
Aer Lingus
7.3
Good
1,843 reviews
Check prices

Comfort

7.2

Food

6.7

Boarding

7.5

Overall

7.3

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Related info for your journey

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

    Consider American Airlines (90%), Qatar Airways (89%) or Aer Lingus (86%) 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 £50. While the most popular route (Shannon - London Heathrow) can be booked for £92 on average, our data indicates £960 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.

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
Hounslow
Milton Keynes
Luton
Slough
Gatwick
Wembley
Hayes
Ilford
Croydon
Colchester
Northampton
Eastbourne
Brentford
Southend-on-Sea
Barnet
Enfield
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Galway to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£90Average£128FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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