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 18h 15m. Your travel time can differ by up to . Airlines will cover a distance of 1289 mi.

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 IAS to LHR?

When flying from Iaşi to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

£113+ Flights from Iaşi to London Heathrow Airport

Cheap 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 28 December 2025.

Tue 30/1213:50IAS - LHR

2 stops33h 00mKLM

Tue 6/115:45LHR - IAS

2 stops15h 15mKLM

Deal found 26/12£389

Tue 30/1220:55IAS - LHR

2 stops20h 00mMultiple Airlines

Tue 6/119:25LHR - IAS

1 stop17h 55mMultiple Airlines

Deal found 26/12£937

Sat 27/1211:55IAS - LHR

1 stop6h 55mMultiple Airlines

Sat 27/1222:35LHR - IAS

2 stops12h 50mMultiple Airlines

Deal found 26/12£1,174

Best flights from Iaşi to Heathrow
Discover carefully curated flight deals from Iaşi to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 December 2025.

Mon 26/116:05IAS - LHR

1 stop18h 15mAustrian Airlines

Mon 2/206:00LHR - IAS

1 stop7h 20mAustrian Airlines

Deal found 27/12£138

Mon 2/213:35IAS - LHR

1 stop24h 55mMultiple Airlines

Tue 10/215:15LHR - IAS

1 stop16h 40mMultiple Airlines

Deal found 25/12£138

Mon 2/216:05IAS - LHR

2 stops6h 55mLufthansa

Tue 10/217:50LHR - IAS

2 stops19h 30mLufthansa

Deal found 25/12£178

Mon 12/116:05IAS - LHR

1 stop7h 35mAustrian Airlines

Mon 19/106:00LHR - IAS

1 stop7h 20mAustrian Airlines

Deal found 26/12£138

Mon 2/216:05IAS - LHR

1 stop24h 00mAustrian Airlines

Tue 10/214:50LHR - IAS

1 stop22h 30mAustrian Airlines

Deal found 25/12£138

Mon 26/116:05IAS - LHR

2 stops8h 50mMultiple Airlines

Mon 2/206:00LHR - IAS

1 stop7h 20mMultiple Airlines

Deal found 27/12£154

Fri 23/116:05IAS - LHR

1 stop18h 15mAustrian Airlines

Fri 30/106:00LHR - IAS

1 stop7h 20mAustrian Airlines

Deal found 26/12£141

Fri 23/116:05IAS - LHR

2 stops8h 50mMultiple Airlines

Fri 30/106:00LHR - IAS

1 stop7h 20mMultiple Airlines

Deal found 26/12£157

Mon 26/116:05IAS - LHR

2 stops8h 50mLufthansa

Mon 2/206:30LHR - IAS

2 stops6h 50mLufthansa

Deal found 27/12£181

Thu 5/221:45IAS - LHR

1 stop26h 10mMultiple Airlines

Wed 11/209:55LHR - IAS

2 stops22h 00mMultiple Airlines

Deal found 27/12£167

Last-minute flights from Iaşi to Heathrow
Discover last-minute flight deals from Iaşi to Heathrow. Data last updated 28 December 2025 and is based on user searches.

Mon 12/116:05IAS - LHR

1 stop7h 35mAustrian Airlines

Mon 19/106:00LHR - IAS

1 stop7h 20mAustrian Airlines

Deal found 26/12£138

Mon 12/116:05IAS - LHR

2 stops6h 55mMultiple Airlines

Mon 19/106:00LHR - IAS

1 stop7h 20mMultiple Airlines

Deal found 26/12£155

Mon 12/116:05IAS - LHR

2 stops6h 55mLufthansa

Mon 19/106:30LHR - IAS

2 stops6h 50mLufthansa

Deal found 26/12£188

Thu 22/121:45IAS - LHR

1 stop25h 20mMultiple Airlines

Wed 28/120:45LHR - IAS

1 stop22h 35mMultiple Airlines

Deal found 27/12£187

Fri 23/116:05IAS - LHR

1 stop18h 15mAustrian Airlines

Fri 30/106:00LHR - IAS

1 stop7h 20mAustrian Airlines

Deal found 26/12£141

Fri 23/116:05IAS - LHR

2 stops8h 50mMultiple Airlines

Fri 30/106:00LHR - IAS

1 stop7h 20mMultiple Airlines

Deal found 26/12£157

Fri 23/116:05IAS - LHR

2 stops8h 50mLufthansa

Fri 30/106:30LHR - IAS

2 stops6h 50mLufthansa

Deal found 26/12£187

Mon 26/116:05IAS - LHR

1 stop18h 15mAustrian Airlines

Mon 2/206:00LHR - IAS

1 stop7h 20mAustrian Airlines

Deal found 27/12£138

Mon 26/116:05IAS - LHR

2 stops8h 50mMultiple Airlines

Mon 2/206:00LHR - IAS

1 stop7h 20mMultiple Airlines

Deal found 27/12£154

Mon 26/116:05IAS - LHR

2 stops8h 50mLufthansa

Mon 2/206:30LHR - IAS

2 stops6h 50mLufthansa

Deal found 27/12£181

One-way flights from Iaşi to Heathrow
Search for one-way flight options from Iaşi to Heathrow. Find affordable one-way fares based on user searches. Data last updated 28 December 2025.

Wed 21/116:05IAS - LHR

1 stop7h 35mAustrian Airlines

Deal found 27/12£113

Wed 14/116:05IAS - LHR

1 stop7h 35mAustrian Airlines

Deal found 27/12£114

Wed 14/110:20IAS - LHR

2 stops12h 45mMultiple Airlines

Deal found 27/12£118

Wed 21/116:05IAS - LHR

2 stops8h 50mLufthansa

Deal found 27/12£133

Mon 5/121:00IAS - LHR

2 stops15h 25mMultiple Airlines

Deal found 27/12£171

Find flight deals from Iaşi to Heathrow

Round-trip from	£138
One-way from	£113
Popular in	August
Cheapest in	March
Average price	£104

Austrian Airlines
26/1-2/2
2 total stops
25h 35m total
Iaşi to London

Search Deals

Austrian Airlines
21/1
1 total stop
7h 35m total
Iaşi to London

Search Deals

Highest demand for flights based on searches. 37% potential increase in price (£55 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 26/1

16:05-08:20

1 stop18h 15m

London Heathrow

Mon 2/2

06:00-15:20

1 stop7h 20m

£138

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 2/2

13:35-12:30

1 stop24h 55m

London Heathrow

Tue 10/2

15:15-09:55

1 stop16h 40m

£138

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 12/1

16:05-21:40

1 stop7h 35m

London Heathrow

Mon 19/1

06:00-15:20

1 stop7h 20m

£138

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 2/2

16:05-14:05

1 stop24h 00m

London Heathrow

Tue 10/2

14:50-15:20

1 stop22h 30m

£138

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 23/1

16:05-08:20

1 stop18h 15m

London Heathrow

Fri 30/1

06:00-15:20

1 stop7h 20m

£141

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 26/1

16:05-22:55

2 stops8h 50m

London Heathrow

Mon 2/2

06:00-15:20

1 stop7h 20m

£154

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 23/1

16:05-22:55

2 stops8h 50m

London Heathrow

Fri 30/1

06:00-15:20

1 stop7h 20m

£157

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 5/2

21:45-21:55

1 stop26h 10m

London Heathrow

Wed 11/2

09:55-09:55

2 stops22h 00m

£167

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 2/2

16:05-21:00

2 stops6h 55m

London Heathrow

Tue 10/2

17:50-15:20

2 stops19h 30m

£178

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 26/1

16:05-22:55

2 stops8h 50m

London Heathrow

Mon 2/2

06:30-15:20

2 stops6h 50m

£181

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Showing 1-10 of 14 results

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.

Related info for your journey

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 18h 15m. 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

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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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Cheap flights from Iaşi to London Heathrow Airport from £113

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Iaşi to Heathrow

Cheapest flights from Iaşi to HeathrowExplore 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 28 December 2025.

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 28 December 2025.

Find flight deals from Iaşi to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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?

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

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

How can I find direct flights from Iaşi to Heathrow?

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

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 Iaşi to Heathrow

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

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

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

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

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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 28 December 2025.