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Cheap flights from London Heathrow Airport to Graz from £121

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GRZ
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Graz

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Graz
Explore the most affordable flight options available from Heathrow to Graz. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 June 2026.

Wed 2/912:10
LHR
-
GRZ
1 stop4h 40m
SWISS
Wed 16/910:50
GRZ
-
LHR
1 stop8h 00m
SWISS
Deal found 9/6£211
Fri 17/713:50
LHR
-
GRZ
1 stop4h 15m
Multiple Airlines
Sun 19/716:50
GRZ
-
LHR
1 stop6h 50m
Multiple Airlines
Deal found 7/6£214
Mon 6/706:00
LHR
-
GRZ
1 stop8h 35m
Austrian Airlines
Mon 13/716:15
GRZ
-
LHR
1 stop6h 25m
Austrian Airlines
Deal found 6/6£214
Thu 20/807:25
LHR
-
GRZ
1 stop4h 10m
Lufthansa
Sun 23/813:15
GRZ
-
LHR
1 stop6h 10m
Lufthansa
Deal found 5/6£216
Thu 3/1206:00
LHR
-
GRZ
1 stop7h 30m
Multiple Airlines
Sun 6/1215:25
GRZ
-
LHR
1 stop4h 50m
Multiple Airlines
Deal found 7/6£218
Fri 28/806:55
LHR
-
GRZ
1 stop4h 40m
Lufthansa
Mon 31/814:45
GRZ
-
LHR
1 stop4h 55m
Lufthansa
Deal found 9/6£220
Mon 24/807:25
LHR
-
GRZ
1 stop4h 10m
Lufthansa
Mon 31/814:45
GRZ
-
LHR
1 stop4h 55m
Lufthansa
Deal found 8/6£220
Sat 7/1107:40
LHR
-
GRZ
1 stop7h 00m
Multiple Airlines
Sun 8/1115:25
GRZ
-
LHR
1 stop4h 50m
Multiple Airlines
Deal found 7/6£222
Fri 17/713:50
LHR
-
GRZ
1 stop4h 15m
SWISS
Fri 24/719:55
GRZ
-
LHR
1 stop18h 05m
SWISS
Deal found 7/6£223

Find flight deals from Heathrow to Graz

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Graz (GRZ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 June 2026.

Round-trip from

£211

One-way from

£121

Popular in

July

Cheapest in

September

Average price

£307
SWISS
  • SWISS
  • 2/9-16/9
  • 2 total stops
  • 12h 40m total
  • London to Graz
Search Deals
15/6
  • 15/6
  • 2 total stops
  • 17h 45m total
  • London to Graz
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Graz 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 9 June 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Graz that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Fri 28/8

13:50-19:05

1 stop4h 15m

Graz Thalerhof

Mon 31/8

14:45-18:40

1 stop4h 55m

£220

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Tue 15/9

20:05-17:50

1 stop20h 45m

Graz Thalerhof

Mon 21/9

10:50-16:25

1 stop6h 35m

£223
Fastest return journey

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Sat 7/11

09:05-13:40

1 stop3h 35m

Graz Thalerhof

Mon 9/11

15:45-18:40

1 stop3h 55m

£223

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Wed 19/8

06:00-17:50

1 stop10h 50m

Graz Thalerhof

Sat 22/8

10:10-19:20

1 stop10h 10m

£224

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Tue 21/7

18:40-10:05

1 stop14h 25m

Graz Thalerhof

Tue 28/7

10:10-07:55

1 stop22h 45m

£224

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Tue 18/8

12:10-10:05

1 stop20h 55m

Graz Thalerhof

Sat 22/8

10:10-21:45

1 stop12h 35m

£224

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Tue 18/8

07:25-16:10

1 stop7h 45m

Graz Thalerhof

Sun 23/8

16:50-22:40

1 stop6h 50m

£226

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Sat 29/8

09:00-16:10

1 stop6h 10m

Graz Thalerhof

Mon 31/8

14:45-18:40

1 stop4h 55m

£232

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Mon 6/7

08:40-08:45

1 stop23h 05m

Graz Thalerhof

Fri 17/7

19:55-07:55

1 stop13h 00m

£244

LondonGraz

LHR - GRZ

LHRGRZ

London Heathrow

Fri 24/7

06:00-19:05

1 stop12h 05m

Graz Thalerhof

Fri 31/7

19:55-16:25

1 stop21h 30m

£244

Flights are sorted by cheapest return flights first.

Deals found on 4/6

Showing 1-10 of 24 resultsSorted by cheapest first
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2
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Best time to book a flight from Heathrow to Graz

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

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

Reviews of airlines servicing Graz

Get insights into the airlines that provide service to Graz. 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 Graz. Reviews last updated 9 June 2026.
Get a feel of what it's like to fly with Austrian Airlines and Lufthansa from London Heathrow Airport to Graz by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
926 reviews
Check prices

Overall

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Austrian Airlines
7.6
Good
926 reviews
Austrian Airlines
7.6
Good
926 reviews
Check prices

Overall

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Lufthansa
6.8
Okay
8,049 reviews
Austrian Airlines
7.6
Good
926 reviews
Check prices

Overall

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Graz. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Graz Thalerhof (GRZ) is the airport you will fly into if you book a flight from London Heathrow to Graz. You should not have trouble finding flights to Thalerhof from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Graz airport from London Heathrow. It is only a 5.2 mi journey from Thalerhof (GRZ) to Graz’s city center.

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

    Airlines like SWISS and Austrian Airlines fly from London Heathrow Airport to Graz in about 3h 35m. The time it takes to get you to your destination can typically vary by up to 17h 10m. The distance from London Heathrow Airport to Graz is about 779 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Graz round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Graz round-trip from £153. Another airline that can offer you cheap pricing is Lufthansa. Users have found that Austrian Airlines is 40% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Graz 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

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Top 2 airlines flying from Heathrow to Graz

Discover the top 2 airlines that operate flights from Heathrow to Graz. 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 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest£153Average£192FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapest£188Average£298FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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

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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 Heathrow to Graz.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Graz flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Heathrow to Graz and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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