How long is the flight from Graz to London Heathrow Airport?

For as low as £227, SWISS can have you in London Heathrow Airport from Graz in 22h 30m. There are 779 mi between Graz and London Heathrow Airport.

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.

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).

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

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

What airport do you fly from for flights from Graz to London Heathrow?

Graz Thalerhof (GRZ) is the airport you will fly out of if you book a flight from Graz to London Heathrow. You should not have trouble finding flights to London Heathrow from Thalerhof; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Graz airport to London Heathrow. It is only a 5.2 mi journey to Thalerhof (GRZ) from Graz’s city center.

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

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

How can I find direct flights from Graz to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Graz 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.

£110+ Cheap Flights from Graz to London Heathrow Airport

Cheap flight deals from Graz to Heathrow

Enter your travel dates to find the best prices.

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Best

Last-minute

One-way

Cheapest flights from Graz to Heathrow
Explore the most affordable flight options available from Graz to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Sun 20/1209:50 -

1 stop8h 15m

Thu 31/1206:35 -

1 stop8h 10m

Deal found 28/10£185

Wed 16/1209:50 -

1 stop4h 10m

Wed 13/111:10 -

1 stop3h 35m

Deal found 28/10£186

Thu 24/1216:25 -

1 stop5h 35m

Thu 31/1208:45 -

1 stop6h 00m

Deal found 28/10£190

Thu 17/1216:25 -

1 stop4h 10m

Thu 24/1208:45 -

1 stop6h 00m

Deal found 27/10£191

Thu 24/1216:25 -

1 stop5h 35m

Sun 27/1206:00 -

1 stop7h 40m

Deal found 25/10£195

Thu 24/1216:25 -

1 stop5h 35m

Wed 30/1206:00 -

1 stop11h 00m

Deal found 25/10£198

Thu 31/1216:25 -

1 stop4h 10m

Wed 6/106:00 -

1 stop11h 00m

Deal found 25/10£199

Tue 22/1213:50 -

1 stop5h 40m

Thu 24/1206:35 -

1 stop8h 10m

Deal found 25/10£202

Thu 17/1209:50 -

1 stop9h 40m

Fri 25/1217:50 -

1 stop14h 20m

Deal found 29/10£202

Wed 16/1209:50 -

1 stop4h 10m

Wed 6/119:10 -

1 stop13h 00m

Deal found 28/10£205

Thu 31/1216:25 -

1 stop4h 10m

Sun 3/107:40 -

1 stop7h 05m

Deal found 27/10£208

Tue 22/1210:40 -

1 stop6h 40m

Tue 29/1206:35 -

1 stop5h 30m

Deal found 28/10£210

Find flight deals from Graz to Heathrow

Round-trip from	£172
One-way from	£110
Popular in	May
Cheapest in	February
Average price	£260

Lufthansa
12/3-14/3
2 total stops
16h 50m total
Graz to London

Search Deals

Lufthansa
6/1-31/12
1 total stop
4h 10m total
Graz to London

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£14 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Graz to London Heathrow Airport that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Tue 9/3

09:50-18:30

1 stop9h 40m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£111

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Sat 9/1

10:40-21:40

1 stop12h 00m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£116

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Tue 9/3

10:40-19:15

1 stop9h 35m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£117

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Wed 10/3

18:45-16:20

1 stop22h 35m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£117

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Mon 8/3

10:45-16:20

1 stop6h 35m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£117

Fastest return journey

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Sun 7/2

15:30-19:15

1 stop4h 45m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£120

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Wed 25/11

16:25-21:00

1 stop5h 35m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£144

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Sat 30/1

09:50-17:05

1 stop8h 15m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£144

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Tue 8/12

10:40-08:05

1 stop22h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£148

GrazLondon

GRZ Graz Thalerhof - LHR London Heathrow

GRZLHR

Graz Thalerhof

Mon 7/12

10:45-16:20

1 stop6h 35m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£148

Flights are sorted by cheapest return flights first.

Deals found on 24/10

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Graz to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Graz with our price prediction graph.

GRZ-LHR

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 Graz to London Heathrow Airport

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

Currently, February is the cheapest month in which you can book a flight from Graz to London Heathrow Airport (average of £211). Flying from Graz to London Heathrow Airport in May is currently the most expensive (average of £338). 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.

How much does it cost for a return flight from Graz to London Heathrow Airport?

Airfare is below average for this route at the moment.

Graz to London Heathrow Airport flights typically cost between £206 and £286 in March.
The cheapest return price found within the last 5 days was £172 on Lufthansa (12 Mar–14 Mar).

Related info for your journey

What airport do you fly from for flights from Graz to London Heathrow?
Graz Thalerhof (GRZ) is the airport you will fly out of if you book a flight from Graz to London Heathrow. You should not have trouble finding flights to London Heathrow from Thalerhof; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Graz airport to London Heathrow. It is only a 5.2 mi journey to Thalerhof (GRZ) from Graz’s city center.
How long is the flight from Graz to London Heathrow Airport?
For as low as £227, SWISS can have you in London Heathrow Airport from Graz in 22h 30m. There are 779 mi between Graz and London Heathrow Airport.
Can I find deals for flights from Graz to Heathrow that include hotel bookings?
Yes. In addition to deals on Graz to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Graz to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Graz to Heathrow.
Can I find deals for business class flights from Graz to Heathrow?
Yes. Cheapflights offers flight deals from Graz 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 Graz to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Graz to London Heathrow Airport (average of £211). Flying from Graz to London Heathrow Airport in May is currently the most expensive (average of £338). 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.

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Why should you use Cheapflights to find cheap flight tickets from Graz 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 Graz to Heathrow.

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

Need flexible booking options for your flight to Heathrow from Graz? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Graz 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 Graz today and book when prices fit your budget.

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Cheap flights from Graz to London Heathrow Airport from £110

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Graz to Heathrow

Cheapest flights from Graz to HeathrowExplore the most affordable flight options available from Graz to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Graz to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Graz to HeathrowDiscover carefully curated flight deals from Graz to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Graz to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Graz to HeathrowDiscover last-minute flight deals from Graz to Heathrow. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Graz to Heathrow. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Graz to HeathrowSearch for one-way flight options from Graz to Heathrow. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Graz to Heathrow. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Graz to London Heathrow Airport that are best for you.

Best time to book a flight from Graz to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Graz with our price prediction graph.

Cheapflights Insights

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

How much does it cost for a return flight from Graz to London Heathrow Airport?

Airfare is below average for this route at the moment.

Graz to London Heathrow Airport flights typically cost between £206 and £286 in March.The cheapest return price found within the last 5 days was £172 on Lufthansa (12 Mar–14 Mar).

Related info for your journey

What airport do you fly from for flights from Graz to London Heathrow?

How long is the flight from Graz to London Heathrow Airport?

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

How can I find direct flights from Graz to Heathrow?

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

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

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Graz to Heathrow

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Complete your trip

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Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

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

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

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

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Cheapest flights from Graz to Heathrow
Explore the most affordable flight options available from Graz to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Graz to Heathrow
Discover carefully curated flight deals from Graz to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Graz to Heathrow
Discover last-minute flight deals from Graz to Heathrow. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Graz to Heathrow
Search for one-way flight options from Graz to Heathrow. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Graz to London Heathrow Airport flights typically cost between £206 and £286 in March.
The cheapest return price found within the last 5 days was £172 on Lufthansa (12 Mar–14 Mar).