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Cheap flights from Iaşi to London Heathrow Airport from £85

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAS — LHR
12 Oct — 19 Oct1
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 12 September 2025.

Round-trip from

£139

One-way from

£85

Popular in

August

Cheapest in

March

Average price

£182
Austrian Airlines
  • Austrian Airlines
  • 7/10-21/10
  • 2 total stops
  • 21h 55m total
  • Iaşi to London
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2/10
  • 2/10
  • 2 total stops
  • 16h 20m total
  • Iaşi to London
Search Deals
Highest demand for flights based on searches. 36% potential increase in price (£52 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Iaşi to Heathrow

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 12 September 2025.

Tue 7/1016:00IAS - LHR
1 stop7h 40mAustrian Airlines
Tue 21/1009:05LHR - IAS
1 stop14h 15mAustrian Airlines
Deal found 10/9£139
Thu 9/1016:00IAS - LHR
1 stop7h 40mAustrian Airlines
Mon 13/1006:00LHR - IAS
1 stop7h 20mAustrian Airlines
Deal found 11/9£145
Thu 2/1016:00IAS - LHR
1 stop7h 40mAustrian Airlines
Wed 8/1006:00LHR - IAS
1 stop7h 20mAustrian Airlines
Deal found 10/9£147
Thu 9/1016:00IAS - LHR
1 stop7h 40mAustrian Airlines
Wed 15/1019:30LHR - IAS
1 stop17h 50mAustrian Airlines
Deal found 12/9£150
Tue 7/1016:00IAS - LHR
1 stop4h 40mMultiple Airlines
Tue 21/1013:45LHR - IAS
2 stops9h 35mMultiple Airlines
Deal found 10/9£157
Sun 19/1016:00IAS - LHR
1 stop7h 40mAustrian Airlines
Thu 23/1009:05LHR - IAS
1 stop14h 15mAustrian Airlines
Deal found 10/9£159
Mon 22/916:00IAS - LHR
1 stop18h 20mAustrian Airlines
Mon 29/919:30LHR - IAS
1 stop17h 50mAustrian Airlines
Deal found 10/9£161
Thu 23/1016:00IAS - LHR
1 stop4h 40mAustrian Airlines
Mon 3/1106:00LHR - IAS
1 stop7h 20mAustrian Airlines
Deal found 12/9£166
Fri 21/1116:05IAS - LHR
2 stops6h 55mMultiple Airlines
Wed 26/1106:00LHR - IAS
1 stop7h 20mMultiple Airlines
Deal found 11/9£168
Fri 10/1016:00IAS - LHR
2 stops8h 10mMultiple Airlines
Sun 19/1009:05LHR - IAS
1 stop14h 15mMultiple Airlines
Deal found 12/9£170

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 12 September 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 9/10

16:00-18:40

1 stop4h 40m

London Heathrow

Mon 13/10

06:00-15:20

1 stop7h 20m

£145

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

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 23/10

16:00-21:40

1 stop7h 40m

London Heathrow

Sun 26/10

06:00-15:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 24/10

05:20-08:20

1 stop5h 00m

London Heathrow

Sun 26/10

06:00-15:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 31/10

16:05-21:40

1 stop7h 35m

London Heathrow

Sun 2/11

05:00-14:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 6/2

16:05-21:40

1 stop7h 35m

London Heathrow

Mon 9/2

06:00-15:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 9/2

16:05-21:40

1 stop7h 35m

London Heathrow

Mon 16/2

06:00-15:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 30/10

16:05-21:40

1 stop7h 35m

London Heathrow

Sun 2/11

05:00-14:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 7/11

16:05-21:40

1 stop7h 35m

London Heathrow

Sun 16/11

06:00-15:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 2/10

16:00-21:40

1 stop7h 40m

London Heathrow

Wed 8/10

06:00-15:20

1 stop7h 20m

£145

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 23 results
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2
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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 12 September 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 morning could potentially save you up to 5% 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 4h 40m. 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.

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

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

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Winchester
Chichester
Ipswich
Swindon
Dartford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Iaşi to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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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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