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Cheap flights from Galway to London Heathrow Airport from £81

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LHR
27 Apr — 4 May1
1 adult

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 22 April 2025.

Round-trip from

£81

Popular in

July

Cheapest in

February

Average price

£131
Aer Lingus
  • Aer Lingus
  • 20/5-27/5
  • Nonstop
  • 2h 50m total
  • Galway to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£17 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 April 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 22 April 2025.

Thu 15/521:15SNN - LHR
Nonstop1h 25mAer Lingus
Sun 18/509:50LHR - SNN
Nonstop1h 30mAer Lingus
Deal found 21/4£94
Fri 13/621:15SNN - LHR
Nonstop1h 25mMultiple Airlines
Mon 16/606:15LHR - SNN
1 stop8h 55mMultiple Airlines
Deal found 21/4£125
Thu 1/507:40SNN - LHR
Nonstop1h 25mBritish Airways
Sun 4/519:10LHR - SNN
Nonstop1h 25mBritish Airways
Deal found 21/4£211

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 22 April 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 23/5

21:15-22:40

Nonstop1h 25m

London Heathrow

Mon 26/5

19:10-20:35

Nonstop1h 25m

£146

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Tue 7/10

21:15-22:40

Nonstop1h 25m

London Heathrow

Tue 14/10

19:10-20:35

Nonstop1h 25m

£154

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sun 22/6

07:40-09:05

Nonstop1h 25m

London Heathrow

Mon 23/6

19:10-20:35

Nonstop1h 25m

£211

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Fri 2/5

14:40-07:45

1 stop17h 05m

London Heathrow

Tue 6/5

13:20-05:55

1 stop16h 35m

£7,487

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 5/6

12:30-06:45

1 stop18h 15m

London Heathrow

Thu 12/6

11:05-07:30

1 stop20h 25m

£10,534

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Mon 28/7

07:40-09:05

Nonstop1h 25m

£117

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Sun 29/6

13:15-22:25

1 stop9h 10m

£118

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Tue 2/9

21:15-22:40

Nonstop1h 25m

£155

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Thu 15/5

13:45-06:30

1 stop16h 45m

£1,278

ShannonLondon

SNN - LHR

SNNLHR

Shannon

Wed 4/6

09:30-08:20

1 stop22h 50m

£3,589

Flights are sorted by cheapest return flights first.

Deals found on 21/4

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 22 April 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 30 June 2024.

Travellers seeking maximum savings on their Galway to London Heathrow Airport flight should consider departing on Friday mornings 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 22 April 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).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 22 April 2025.
United Airlines
7.4
Good
8,684 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,684 reviews
United Airlines
7.4
Good
8,684 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.3
Good
2,923 reviews
United Airlines
7.4
Good
8,684 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,684 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.0
Good
1,067 reviews
United Airlines
7.4
Good
8,684 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.6
Okay
6,794 reviews
United Airlines
7.4
Good
8,684 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

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

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £117. Users have also found prices from £155 and £1,278 on Aer Lingus and JetBlue, respectively.

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

    Consider American Airlines (83%), Aer Lingus (82%) or British Airways (82%) 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 £44. While the most popular route (Shannon - London Heathrow) can be booked for £75 on average our data indicates £76 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 Galway?

Book flights to Galway if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Northampton
Ilford
Hayes
Southend-on-Sea
Crawley
Wembley
Ipswich
Maidstone
Winchester
Swindon
Folkestone
Dartford

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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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 22 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£71Average£117FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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