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Cheap flights from London Heathrow Airport to Iaşi from £109

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IAS
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Iasi are usually found in January or September, booked 15 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

Cheap flight deals from Heathrow to Iaşi

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Iaşi (IAS). 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 25 March 2025.

Round-trip from

£142

One-way from

£109

Popular in

December

Cheapest in

January

Average price

£198
Austrian Airlines
  • Austrian Airlines
  • 6/5-21/5
  • 2 total stops
  • 19h 55m total
  • London to Iaşi
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Austrian Airlines
  • Austrian Airlines
  • 17/6
  • 1 total stop
  • 7h 20m total
  • London to Iaşi
Search Deals
High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Find flight deals from Heathrow to Iaşi

Cheapest flights from Heathrow to Iaşi
Explore the most affordable flight options available from Heathrow to Iaşi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Tue 6/509:05LHR - IAS
1 stop14h 15mAustrian Airlines
Wed 21/505:20IAS - LHR
1 stop5h 40mAustrian Airlines
Deal found 24/3£142
Tue 6/509:00LHR - IAS
2 stops14h 20mMultiple Airlines
Wed 21/505:20IAS - LHR
1 stop5h 40mMultiple Airlines
Deal found 24/3£163
Tue 6/509:00LHR - IAS
2 stops14h 20mLufthansa
Wed 21/505:20IAS - LHR
2 stops11h 20mLufthansa
Deal found 24/3£196

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Iaşi 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 25 March 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Iaşi that are best for you.

Fly from

Heathrow

Fly to

Iaşi

Route

Depart

Return

Price

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 6/5

09:05-01:20

1 stop14h 15m

Iasi

Wed 21/5

05:20-09:00

1 stop5h 40m

£142

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 6/5

09:00-01:20

2 stops14h 20m

Iasi

Wed 21/5

05:20-09:00

1 stop5h 40m

£163

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 6/5

09:00-01:20

2 stops14h 20m

Iasi

Wed 21/5

05:20-14:40

2 stops11h 20m

£196

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 17/6

06:00-15:20

1 stop7h 20m

£109

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sun 8/6

22:15-19:20

2 stops19h 05m

£110

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 24/4

06:55-01:20

2 stops16h 25m

£137

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Best time to book a flight from Heathrow to Iaşi

Have a flexible travel schedule? Discover the best time to fly to Iaşi 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 Iaşi

How far ahead should I book a flight from London Heathrow Airport to Iaşi?

Use this chart to determine the optimal time to book a return flight from Heathrow to Iaşi. Price data was last updated on 21 March 2025.

The price you pay for your flight from London Heathrow Airport to Iaşi may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Iaşi (average of £69). Flying from London Heathrow Airport to Iaşi in December is currently the most expensive (average of £359). 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.

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

Find hourly flight availability from Heathrow to Iaşi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 March 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Iaşi 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 50% on airfare.

Rainfall in Iaşi by month

Plan your trip to Iaşi by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Iaşi ranges from 20.0 - 70.0 inches per month. June is typically the wettest month, when rainfall can reach 70.0 mm. January is typically the driest time to visit Iaşi when rainfall is around 20.0 mm.

Temperature in Iaşi by month

Plan your trip to Iaşi by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Iaşi, 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 21.0 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 Iaşi

Get insights into the airlines that provide service to Iaşi. 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 Iaşi. Reviews last updated 25 March 2025.
To help decide which airline to fly from London to Iaşi, see what other customers have to say about Austrian Airlines and Lufthansa. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.5
Good
769 reviews
Check prices

Boarding

7.6

Entertainment

6.7

Food

6.8

Overall

7.5

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.5
Good
769 reviews
Austrian Airlines
7.5
Good
769 reviews
Check prices

Boarding

7.6

Entertainment

6.7

Food

6.8

Overall

7.5

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Lufthansa
6.7
Okay
6,950 reviews
Austrian Airlines
7.5
Good
769 reviews
Check prices

Boarding

7.6

Entertainment

6.7

Food

6.8

Overall

7.5

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

Related info for your journey

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

    If you book a flight to Iaşi from London Heathrow, you will be flying to 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 London Heathrow to Iasi per day from 3 different airlines.

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

    Currently priced at £142, Austrian Airlines will fly you from London Heathrow Airport to Iaşi and back. In addition to Austrian Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Lufthansa for as low as £196. Users have found that Austrian Airlines is 43% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Iaşi (average of £69). Flying from London Heathrow Airport to Iaşi in December is currently the most expensive (average of £359). 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

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Alternative routes for Heathrow to Iaşi

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Top 3 airlines flying from Heathrow to Iaşi

Discover the top 3 airlines that operate flights from Heathrow to Iaşi. 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Wizz AirCheapest£82Average£204FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Austrian AirlinesCheapest£162Average£321FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
TAROMCheapest£205Average£351FlexibilityNo cancel feeOn-time86%
Search TAROM flights

Fly with Cheapflights

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

When you search for this flight from Heathrow to Iaşi, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Iaşi for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Iaşi from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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