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Cheap flights from Iaşi to London Heathrow Airport from £81

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 21/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAS — LHR
20 Nov — 27 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Iaşi to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Iaşi (IAS) 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 October 2025.

Round-trip from

£145

One-way from

£81

Popular in

August

Cheapest in

March

Average price

£139
Austrian Airlines
  • Austrian Airlines
  • 13/11-19/11
  • 2 total stops
  • 14h 55m total
  • Iaşi to London
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21/12
  • 21/12
  • 1 total stop
  • 19h 50m total
  • Iaşi to London
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Highest demand for flights based on searches. 37% potential increase in price (£55 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Iaşi to Heathrow

Enter your travel dates to find the best prices.

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

Thu 13/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Wed 19/1106:00LHR - IAS
1 stop7h 20mAustrian Airlines
Deal found 20/10£145
Thu 13/1116:05IAS - LHR
1 stop24h 00mAustrian Airlines
Sat 15/1119:25LHR - IAS
1 stop17h 55mAustrian Airlines
Deal found 19/10£145
Sun 9/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Sat 15/1119:25LHR - IAS
1 stop17h 55mAustrian Airlines
Deal found 20/10£146
Wed 26/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Tue 2/1219:25LHR - IAS
1 stop17h 55mAustrian Airlines
Deal found 20/10£152
Thu 13/1116:05IAS - LHR
2 stops8h 50mMultiple Airlines
Wed 19/1119:25LHR - IAS
1 stop17h 55mMultiple Airlines
Deal found 20/10£161
Thu 13/1116:05IAS - LHR
2 stops8h 50mMultiple Airlines
Sat 15/1114:50LHR - IAS
1 stop22h 30mMultiple Airlines
Deal found 19/10£164
Fri 14/1116:05IAS - LHR
2 stops8h 15mMultiple Airlines
Thu 20/1106:00LHR - IAS
1 stop7h 20mMultiple Airlines
Deal found 20/10£168
Thu 20/1116:05IAS - LHR
2 stops8h 50mLufthansa
Wed 26/1106:35LHR - IAS
2 stops30h 45mLufthansa
Deal found 19/10£177
Thu 13/1116:05IAS - LHR
2 stops8h 50mLufthansa
Wed 19/1119:15LHR - IAS
2 stops18h 05mLufthansa
Deal found 20/10£183

Cheapflights Fare Finder

 
Customise your flight search to find flights from Iaşi 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 October 2025.
Use the filters below to find and compare flights from Iaşi to London Heathrow Airport that are best for you.

Fly from

Iaşi

Fly to

Heathrow

Route

Depart

Return

Price

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 13/11

16:05-21:40

1 stop7h 35m

London Heathrow

Wed 19/11

06:00-15:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 24/11

16:05-14:05

1 stop24h 00m

London Heathrow

Wed 3/12

06:00-15:20

1 stop7h 20m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 20/11

16:05-08:20

1 stop18h 15m

London Heathrow

Wed 26/11

19:25-15:20

1 stop17h 55m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 14/11

16:05-21:40

1 stop7h 35m

London Heathrow

Thu 20/11

06:00-15:20

1 stop7h 20m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 6/11

16:05-21:40

1 stop7h 35m

London Heathrow

Wed 12/11

06:00-15:20

1 stop7h 20m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Wed 12/11

16:05-21:40

1 stop7h 35m

London Heathrow

Sun 16/11

06:00-15:20

1 stop7h 20m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 14/11

16:05-21:40

1 stop7h 35m

London Heathrow

Sun 16/11

06:00-15:20

1 stop7h 20m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Sun 9/11

16:05-21:40

1 stop7h 35m

London Heathrow

Sat 15/11

19:25-15:20

1 stop17h 55m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 12/3

16:05-21:40

1 stop7h 35m

London Heathrow

Sun 15/3

06:00-15:20

1 stop7h 20m

£146

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 21/11

16:05-21:40

1 stop7h 35m

London Heathrow

Wed 26/11

06:00-15:20

1 stop7h 20m

£146

Flights are sorted by cheapest return flights first.

Deals found on 19/10

Showing 1-10 of 23 results
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Best time to book a flight from Iaşi to Heathrow

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

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

Find hourly flight availability from Iaşi 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 21 October 2025.

One of the essential ways to save on airfare from Iaşi to London Heathrow Airport is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 69% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Iaşi 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 Iaşi to London Heathrow?

    If you book a flight to London Heathrow from Iaşi, you will be flying from Iasi, which is the city’s only airport. Iasi (IAS) is located 1.3 mi from the center of Iaşi. There are 0 flights from Iasi to London Heathrow per day from 0 different airlines.

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

    Austrian Airlines can get you from Iaşi to London Heathrow Airport in just under 7h 35m. Your travel time can differ by up to . Airlines will cover a distance of 1289 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Iaşi 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.

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
Gatwick
Hounslow
Northampton
Luton
Wembley
Ilford
Deal
Hayes
Colchester
Watford
Crawley
Winchester
Swindon
Chichester
Romford
Ipswich
Bedford

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Fly with Cheapflights

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

Deals for Iaşi to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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

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

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

Not ready to book yet? You can track prices for flights from Iaşi to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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