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Cheap flights from Trieste to London Heathrow Airport from £66

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — LHR
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Trieste to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Trieste (TRS) to Heathrow (LHR). 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 21 February 2025.

Round-trip from

£136

One-way from

£66

Popular in

August

Cheapest in

February

Average price

£93
Lufthansa
  • Lufthansa
  • 7/4-14/4
  • 2 total stops
  • 16h 15m total
  • Trieste to London
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13/3
  • 13/3
  • 1 total stop
  • 12h 50m total
  • Trieste to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Trieste to Heathrow

Cheapest flights from Trieste to Heathrow
Explore the most affordable flight options available from Trieste to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Mon 7/406:30TRS - LHR
1 stop12h 10mLufthansa
Mon 14/417:30LHR - TRS
1 stop4h 05mLufthansa
Deal found 21/2£136
Mon 16/611:15TRS - LHR
2 stops7h 25mMultiple Airlines
Fri 20/607:30LHR - TRS
1 stop13h 55mMultiple Airlines
Deal found 20/2£234
Thu 20/306:35TRS - LHR
2 stops8h 15mKLM
Thu 20/317:50LHR - TRS
2 stops19h 40mKLM
Deal found 19/2£326
Mon 10/306:35TRS - LHR
2 stops11h 00mAir France
Mon 17/311:30LHR - TRS
2 stops10h 25mAir France
Deal found 20/2£428
Mon 7/406:40TRS - LHR
2 stops15h 10mTurkish Airlines
Thu 10/406:30LHR - TRS
2 stops15h 20mTurkish Airlines
Deal found 20/2£523

Find flights from Trieste to Heathrow within your budget

Customise your flight search to find flights from Trieste 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 21 February 2025.

Fly from

Trieste

Fly to

Heathrow

Route

Depart

Return

Price

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Mon 7/4

06:30-17:40

1 stop12h 10m

London Heathrow

Mon 14/4

17:30-22:35

1 stop4h 05m

£136

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Mon 16/6

11:15-17:40

2 stops7h 25m

London Heathrow

Fri 20/6

07:30-22:25

1 stop13h 55m

£234

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 20/3

06:35-13:50

2 stops8h 15m

London Heathrow

Thu 20/3

17:50-14:30

2 stops19h 40m

£326

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Mon 10/3

06:35-16:35

2 stops11h 00m

London Heathrow

Mon 17/3

11:30-22:55

2 stops10h 25m

£428

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Mon 7/4

06:40-20:50

2 stops15h 10m

London Heathrow

Thu 10/4

06:30-22:50

2 stops15h 20m

£523

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 13/3

08:15-20:05

1 stop12h 50m

£66

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 2/5

06:30-16:40

1 stop11h 10m

£116

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 25/3

06:35-22:25

2 stops16h 50m

£259

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Best time to book a flight from Trieste to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Trieste 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.

Travel insights for flights from Trieste to Heathrow

Get recent, data-driven insights about flights from Trieste to Heathrow including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Trieste to London Heathrow Airport (average of £112). Flying from Trieste to London Heathrow Airport in August is currently the most expensive (average of £163). 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.

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 21 February 2025.
See what other customers who have flown with KLM, Air France and Turkish Airlines from Trieste to London have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,331 reviews
Check prices

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,331 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air France
7.4
Good
1,449 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Turkish Airlines
7.3
Good
3,832 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Lufthansa
6.7
Okay
6,986 reviews
KLM
7.8
Good
1,331 reviews
Check prices

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Trieste to Heathrow. 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 from for flights from Trieste to London Heathrow?

    Trieste Ronchi dei Legionari (TRS) is the airport you will fly out of if you book a flight from Trieste to London Heathrow. You should not have trouble finding flights to London Heathrow from Ronchi dei Legionari; 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 Trieste airport to London Heathrow. It is only a 18.2 mi journey to Ronchi dei Legionari (TRS) from Trieste’s city center.

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

    According to our current data, Lufthansa (£136), KLM (£326), and Air France (£428) offers the cheapest pricing from Trieste to London Heathrow Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trieste 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 Trieste to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Trieste to London Heathrow Airport (average of £112). Flying from Trieste to London Heathrow Airport in August is currently the most expensive (average of £163). 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 Trieste?

Book flights to Trieste if you plan to visit one of these locations
Deal
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Milton Keynes
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Hayes
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Northampton
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Why should you use Cheapflights to find cheap flight tickets from Trieste to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Trieste.

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

Certainly. Search results for flights to Heathrow from Trieste shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Trieste to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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