Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Iaşi from £62

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IAS
19 Aug — 26 Aug1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Iasi are usually found in January or June, booked 78 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 14 August 2025.

Round-trip from

£142

One-way from

£62

Popular in

May

Cheapest in

January

Average price

£318
Austrian Airlines
  • Austrian Airlines
  • 4/10-6/10
  • 2 total stops
  • 22h 50m total
  • London to Iaşi
Search Deals
3/10
  • 3/10
  • 1 total stop
  • 19h 25m total
  • London to Iaşi
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 14 August 2025.

Sat 4/1019:30LHR - IAS
1 stop17h 50mAustrian Airlines
Mon 6/1005:20IAS - LHR
1 stop5h 00mAustrian Airlines
Deal found 12/8£142
Sat 13/919:30LHR - IAS
1 stop17h 50mAustrian Airlines
Sat 20/916:00IAS - LHR
1 stop7h 40mAustrian Airlines
Deal found 12/8£144
Sat 15/1114:50LHR - IAS
1 stop22h 30mAustrian Airlines
Mon 17/1116:05IAS - LHR
1 stop24h 00mAustrian Airlines
Deal found 12/8£150
Thu 11/906:00LHR - IAS
1 stop17h 20mAustrian Airlines
Thu 18/916:00IAS - LHR
1 stop18h 45mAustrian Airlines
Deal found 12/8£151
Mon 22/919:30LHR - IAS
1 stop17h 50mAustrian Airlines
Wed 1/1016:00IAS - LHR
1 stop18h 45mAustrian Airlines
Deal found 13/8£156
Mon 8/906:00LHR - IAS
1 stop7h 20mAustrian Airlines
Tue 16/916:00IAS - LHR
1 stop7h 40mAustrian Airlines
Deal found 12/8£161
Sun 7/906:00LHR - IAS
1 stop17h 20mAustrian Airlines
Thu 11/916:00IAS - LHR
1 stop18h 20mAustrian Airlines
Deal found 13/8£164
Thu 25/906:00LHR - IAS
1 stop17h 20mAustrian Airlines
Thu 2/1016:00IAS - LHR
1 stop7h 40mAustrian Airlines
Deal found 11/8£165
Fri 14/1106:00LHR - IAS
1 stop7h 20mAustrian Airlines
Sun 16/1116:05IAS - LHR
1 stop24h 00mAustrian Airlines
Deal found 12/8£166
Sat 4/1019:30LHR - IAS
1 stop17h 50mMultiple Airlines
Mon 6/1005:20IAS - LHR
2 stops9h 20mMultiple Airlines
Deal found 12/8£170
Wed 10/906:00LHR - IAS
1 stop7h 20mMultiple Airlines
Wed 17/916:00IAS - LHR
2 stops8h 10mMultiple Airlines
Deal found 13/8£171

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 14 August 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

Sat 4/10

19:30-15:20

1 stop17h 50m

Iasi

Mon 6/10

05:20-08:20

1 stop5h 00m

£142

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sat 13/9

19:30-15:20

1 stop17h 50m

Iasi

Sat 20/9

16:00-21:40

1 stop7h 40m

£144

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sat 15/11

14:50-15:20

1 stop22h 30m

Iasi

Mon 17/11

16:05-14:05

1 stop24h 00m

£150

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 11/9

06:00-01:20

1 stop17h 20m

Iasi

Thu 18/9

16:00-08:45

1 stop18h 45m

£151

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 11/9

06:00-15:20

1 stop7h 20m

Iasi

Fri 19/9

05:20-08:45

1 stop5h 25m

£151

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 22/9

19:30-15:20

1 stop17h 50m

Iasi

Wed 1/10

16:00-08:45

1 stop18h 45m

£156

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 8/9

06:00-15:20

1 stop7h 20m

Iasi

Tue 16/9

16:00-21:40

1 stop7h 40m

£161

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Fri 3/10

15:05-12:30

1 stop19h 25m

£62

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 29/9

15:05-12:30

1 stop19h 25m

£69

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 18/9

15:05-12:30

1 stop19h 25m

£91

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 13 results
1
2

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 8 August 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 77 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 14 August 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.

What’s the top stopover airport for flights from London Heathrow Airport to Iaşi?

Share of one-stop return flights from London Heathrow Airport to Iaşi chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Vienna (VIE) – chosen by Cheapflights users on 99% of one-stop itineraries from London Heathrow Airport to Iaşi on Cheapflights.

What’s the cheapest stopover airport for flights from London Heathrow Airport to Iaşi?

Average return fare for one-stop flights from London Heathrow Airport to Iaşi, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Vienna (VIE) is the most affordable one-stop option, with an average return flight price of £317.

What’s the fastest stopover option from London Heathrow Airport to Iaşi?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Iaşi, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Bucharest (OTP) have the shortest average one-way travel time for one-stop routes: 6h 40m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Iaşi?

Average stopover duration for one-stop one-way flights from London Heathrow Airport to Iaşi, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Bucharest (OTP) offer the fastest connection on this route, with an average stopover time of 3h 58m.

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 14 August 2025.
Read reviews from past customers who have flown with Austrian Airlines and Wizz Air from London Heathrow Airport to Iaşi. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
829 reviews
Check prices

Entertainment

6.8

Comfort

7.3

Overall

7.6

Boarding

7.6

Crew

8.1

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
829 reviews
Austrian Airlines
7.6
Good
829 reviews
Check prices

Entertainment

6.8

Comfort

7.3

Overall

7.6

Boarding

7.6

Crew

8.1

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Wizz Air
6.8
Okay
371 reviews
Austrian Airlines
7.6
Good
829 reviews
Check prices

Entertainment

6.8

Comfort

7.3

Overall

7.6

Boarding

7.6

Crew

8.1

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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 2 different airlines.

  • What is the cheapest airline to fly 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. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Iaşi

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Otopeni Intl flights
Stansted to Otopeni Intl flights
Luton to Otopeni Intl flights
Gatwick to Otopeni Intl flights
London City to Otopeni Intl flights
Luton to Cluj Napoca flights
Gatwick to Cluj Napoca flights
Heathrow to Cluj Napoca flights
Luton to Iaşi flights
London City to Cluj Napoca flights
Stansted to Cluj Napoca flights
Heathrow to Suceava flights
Gatwick to Iaşi flights
Southend to Otopeni Intl flights
Stansted to Iaşi flights
Luton to Suceava flights
Heathrow to Sibiu flights
Luton to Sibiu flights
Gatwick to Suceava flights
Stansted to Suceava flights
Luton to Timisoara flights
Luton to Bacău flights
Heathrow to Timisoara flights
London City to Sibiu flights
Stansted to Timisoara flights
Gatwick to Timisoara flights
Stansted to Sibiu flights
London City to Timisoara flights
Gatwick to Sibiu flights
Luton to Craiova flights
Heathrow to Constanţa flights
Luton to Satu Mare flights
Heathrow to Oradea flights
Gatwick to Bacău flights
Luton to Oradea flights
Heathrow to Bacău flights
Luton to Constanţa flights
Heathrow to Satu Mare flights
Gatwick to Craiova flights
Gatwick to Constanţa flights
Stansted to Craiova flights
Stansted to Oradea flights
Stansted to Bacău flights
Stansted to Constanţa flights

Top 2 airlines flying from Heathrow to Iaşi

Discover the top 2 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 14 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Wizz AirCheapest£82Average£212FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Austrian AirlinesCheapest£177Average£301FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.