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Cheap flights from Galway to London Heathrow Airport 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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LHR
16 Jan — 23 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Galway to Heathrow

Enter your travel dates to find the best prices.

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 December 2025.

Fri 26/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Thu 1/115:15LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 15/12£110
Wed 31/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Sun 4/115:15LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 15/12£131
Wed 31/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Fri 2/118:05LHR - SNN
Nonstop1h 20mAer Lingus
Deal found 15/12£133
Wed 17/1220:05SNN - LHR
Nonstop1h 20mAer Lingus
Thu 18/1218:05LHR - SNN
Nonstop1h 20mAer Lingus
Deal found 15/12£167
Fri 26/1220:05SNN - LHR
Nonstop1h 20mMultiple Airlines
Thu 1/118:45LHR - SNN
2 stops14h 30mMultiple Airlines
Deal found 15/12£198
Wed 17/1220:05SNN - LHR
Nonstop1h 20mMultiple Airlines
Thu 18/1220:30LHR - SNN
2 stops27h 05mMultiple Airlines
Deal found 16/12£215
Wed 24/1217:30SNN - LHR
Nonstop1h 25mBritish Airways
Fri 26/1218:05LHR - SNN
Nonstop1h 20mBritish Airways
Deal found 15/12£218
Tue 16/1220:05SNN - LHR
Nonstop1h 20mMultiple Airlines
Sat 20/1220:30LHR - SNN
2 stops16h 45mMultiple Airlines
Deal found 15/12£241
Tue 16/1205:50SNN - LHR
2 stops14h 00mMultiple Airlines
Thu 18/1215:15LHR - SNN
Nonstop1h 30mMultiple Airlines
Deal found 15/12£308
Sun 21/1215:15SNN - LHR
2 stops18h 20mMultiple Airlines
Mon 22/1218:20LHR - SNN
2 stops30h 45mMultiple Airlines
Deal found 15/12£400

Find 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 December 2025.

Round-trip from

£90

One-way from

£48

Popular in

August

Cheapest in

February

Average price

£137
Aer Lingus
  • Aer Lingus
  • 13/1-20/1
  • Nonstop
  • 2h 45m total
  • Galway to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 19/1
  • Nonstop
  • 1h 25m total
  • Galway to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£10 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 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

Fri 9/1

20:05-21:25

Nonstop1h 20m

London Heathrow

Thu 15/1

10:00-11:30

Nonstop1h 30m

£93

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 15/1

20:05-21:25

Nonstop1h 20m

London Heathrow

Fri 16/1

15:15-16:45

Nonstop1h 30m

£94

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 10/1

17:25-18:50

Nonstop1h 25m

London Heathrow

Fri 16/1

18:05-19:25

Nonstop1h 20m

£95

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 17/1

17:25-18:50

Nonstop1h 25m

London Heathrow

Mon 19/1

15:15-16:45

Nonstop1h 30m

£95

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 14/1

07:50-09:15

Nonstop1h 25m

London Heathrow

Sat 17/1

14:15-15:45

Nonstop1h 30m

£96

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 9/1

20:05-21:25

Nonstop1h 20m

London Heathrow

Sun 11/1

10:00-11:30

Nonstop1h 30m

£113

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sat 10/1

17:25-18:50

Nonstop1h 25m

London Heathrow

Sun 11/1

10:00-11:30

Nonstop1h 30m

£113

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 29/1

17:30-18:55

Nonstop1h 25m

London Heathrow

Thu 5/2

10:00-11:30

Nonstop1h 30m

£119

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 30/1

20:05-21:25

Nonstop1h 20m

London Heathrow

Fri 6/2

15:15-16:45

Nonstop1h 30m

£122

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Tue 13/1

17:30-18:55

Nonstop1h 25m

London Heathrow

Tue 20/1

20:50-12:10

2 stops15h 20m

£140

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 21 results
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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, February is the cheapest month in which you can book a flight from Galway to London Heathrow Airport (average of £31). Flying from Galway to London Heathrow Airport in August is currently the most expensive (average of £123). 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 December 2025.

It’s typically best to fly out from Galway to London Heathrow Airport in the afternoon. Doing so could potentially save you 80% on the flight price compared to flying in the morning, which is usually more expensive.

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 13 December 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. Monday 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 December 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 December 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
1,395 reviews
Check prices

Comfort

7.1

Overall

7.2

Entertainment

6.9

Food

6.6

Crew

8.0

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,395 reviews
Aer Lingus
7.2
Good
1,395 reviews
Check prices

Comfort

7.1

Overall

7.2

Entertainment

6.9

Food

6.6

Crew

8.0

Boarding

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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 20m. 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 British Airways (72%), Qatar Airways (72%) or Aer Lingus (71%) 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 £48. While the most popular route (Shannon - London Heathrow) can be booked for £90 on average, our data indicates £263 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, February is the cheapest month in which you can book a flight from Galway to London Heathrow Airport (average of £31). Flying from Galway to London Heathrow Airport in August is currently the most expensive (average of £123). 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
Slough
Hounslow
Northampton
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Hayes
Watford
Crawley
Swindon
Winchester
Bedford
Romford
Chichester
Eastbourne

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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Milltown (Kerry) to Luton flights
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Milltown (Kerry) to Stansted flights
Knock to Southend 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 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£71Average£140FlexibilityNo 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?

Cheapflights helps you search for flights from Galway to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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.

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

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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