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Cheap flights from London Heathrow Airport to Iaşi from £73

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Iaşi departing on 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Iaşi

Cheap return flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:05 - 21:40IAS-LHR
7h 35m1 stop
£145Austrian Airlines
Find Deal
mer., 10 déc. - lun., 12 janv.
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:05 - 21:40IAS-LHR
7h 35m1 stop
£151Austrian Airlines
Find Deal
jeu., 6 nov. - mer., 12 nov.
Austrian Airlines Logo
19:25 - 15:20LHR-IAS
17h 55m1 stop
Austrian Airlines Logo
16:05 - 08:20IAS-LHR
18h 15m1 stop
£152Austrian Airlines
Find Deal
sam., 14 mars - lun., 16 mars
Austrian Airlines Logo
19:25 - 15:20LHR-IAS
17h 55m1 stop
Austrian Airlines Logo
16:05 - 08:20IAS-LHR
18h 15m1 stop
£152Austrian Airlines
Find Deal
sam., 14 mars - lun., 16 mars
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:05 - 21:40IAS-LHR
7h 35m1 stop
£153Austrian Airlines
Find Deal
jeu., 6 nov. - mer., 12 nov.
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:05 - 08:20IAS-LHR
18h 15m1 stop
£154Austrian Airlines
Find Deal
jeu., 6 nov. - mer., 12 nov.
Multiple Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Multiple Airlines Logo
16:05 - 10:25IAS-LHR
20h 20m2 stops
£167Multiple Airlines
Find Deal
mer., 10 déc. - lun., 12 janv.
Lufthansa Logo
06:30 - 15:20LHR-IAS
6h 50m2 stops
Lufthansa Logo
16:05 - 21:00IAS-LHR
6h 55m2 stops
£210Lufthansa
Find Deal
dim., 15 févr. - ven., 20 févr.
Lufthansa Logo
06:30 - 15:20LHR-IAS
6h 50m2 stops
Lufthansa Logo
16:05 - 15:50IAS-LHR
25h 45m2 stops
£212Lufthansa
Find Deal
mer., 10 déc. - dim., 14 déc.
Lufthansa Logo
06:30 - 15:20LHR-IAS
6h 50m2 stops
Lufthansa Logo
16:05 - 22:55IAS-LHR
8h 50m2 stops
£213Lufthansa
Find Deal
jeu., 6 nov. - mer., 12 nov.

Austrian Airlines flights from London Heathrow Airport to Iaşi

Our best Austrian Airlines deals on London Heathrow Airport to Iaşi flight tickets
Austrian Airlines
10 Dec
LHR06:00London Heathrow
7h 20m
1 stop
IAS15:20Iasi
12 Jan
IAS16:05Iasi
7h 35m
1 stop
LHR21:40London Heathrow
£145
Find similar
Austrian Airlines
6 Nov
LHR06:00London Heathrow
7h 20m
1 stop
IAS15:20Iasi
12 Nov
IAS16:05Iasi
7h 35m
1 stop
LHR21:40London Heathrow
£151
Find similar
Austrian Airlines
14 Mar
LHR19:25London Heathrow
17h 55m
1 stop
IAS15:20Iasi
16 Mar
IAS16:05Iasi
18h 15m
1 stop
LHR08:20London Heathrow
£152
Find similar

Lufthansa flights from London Heathrow Airport to Iaşi

Our best Lufthansa deals on London Heathrow Airport to Iaşi flight tickets
Lufthansa
15 Feb
LHR06:30London Heathrow
6h 50m
2 stops
IAS15:20Iasi
20 Feb
IAS16:05Iasi
6h 55m
2 stops
LHR21:00London Heathrow
£210
Find similar
Lufthansa
10 Dec
LHR06:30London Heathrow
6h 50m
2 stops
IAS15:20Iasi
14 Dec
IAS16:05Iasi
25h 45m
2 stops
LHR15:50London Heathrow
£212
Find similar
Lufthansa
6 Nov
LHR06:30London Heathrow
6h 50m
2 stops
IAS15:20Iasi
12 Nov
IAS16:05Iasi
8h 50m
2 stops
LHR22:55London Heathrow
£212
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 10 octobre 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Iaşi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

mer. 10/12

06:00-15:20

1 stop7h 20m

Iasi

lun. 12/1

16:05-21:40

1 stop7h 35m

£145

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

jeu. 6/11

06:00-15:20

1 stop7h 20m

Iasi

mer. 12/11

16:05-21:40

1 stop7h 35m

£151

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

sam. 14/3

19:25-15:20

1 stop17h 55m

Iasi

lun. 16/3

16:05-08:20

1 stop18h 15m

£152

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

sam. 14/3

19:25-15:20

1 stop17h 55m

Iasi

lun. 16/3

16:05-08:20

1 stop18h 15m

£152

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

jeu. 6/11

06:00-15:20

1 stop7h 20m

Iasi

mer. 12/11

16:05-21:40

1 stop7h 35m

£153

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

jeu. 6/11

06:00-15:20

1 stop7h 20m

Iasi

mer. 12/11

16:05-08:20

1 stop18h 15m

£154

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

mer. 10/12

06:00-15:20

1 stop7h 20m

Iasi

lun. 12/1

16:05-10:25

2 stops20h 20m

£167

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

dim. 15/2

06:30-15:20

2 stops6h 50m

Iasi

ven. 20/2

16:05-21:00

2 stops6h 55m

£210

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

mer. 10/12

06:30-15:20

2 stops6h 50m

Iasi

dim. 14/12

16:05-15:50

2 stops25h 45m

£212

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

jeu. 6/11

06:30-15:20

2 stops6h 50m

Iasi

mer. 12/11

16:05-22:55

2 stops8h 50m

£212

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Iaşi from

How to get the cheapest flight ticket from London Heathrow Airport to Iaşi

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Iaşi?

What is the cheapest month to fly to Iaşi?

The month of January is, on average, the cheapest month to fly to Iaşi from London Heathrow Airport, with most prices found around £140. If you’re not able to fly to Iaşi in January, then June is your next best option. Flight prices from London Heathrow Airport to Iaşi during June average around £161.

What is the cheapest day to depart on your flight to Iaşi?

The cheapest day to depart from London Heathrow Airport to Iaşi is on a Monday. Travellers who choose to depart for Iaşi on a Monday will often find tickets for as low as £169. Flights from London Heathrow Airport to Iaşi on a Wednesday will generally be more expensive and average around £201. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Iaşi?

Our most recent data shows that the best time of day to fly to Iaşi is in the morning. Flights from London Heathrow Airport to Iaşi during this time can be as low as £173. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £322 on average. Flights to Iaşi from London Heathrow Airport at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Iaşi?

You are more likely to see cheaper flights to Iaşi from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Iaşi for around £247 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Iaşi from London Heathrow Airport for as low as £205 on momondo.

Can stopping save me money on London Heathrow Airport to Iaşi flights?

You could potentially save up to 17% on your flight if you consider stops on a London Heathrow Airport to Iaşi flight.

When to book flights from London Heathrow Airport to Iaşi

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Iaşi according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Iaşi (LHR to IAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Iaşi

Direct flights

None
There are no direct flights from London Heathrow Airport to Iaşi. There are no popular flight routes from London Heathrow Airport to Iaşi.
Search flight deals

  • How far is London Heathrow to Iasi by plane?

    The distance between London Heathrow and Iasi is about 1288.7 mi. In terms of flight time, this usually takes a little over 6h 50m.

  • When did momondo last update prices for flights from London Heathrow Airport to Iasi Airport?

    Prices for flights from London Heathrow Airport to Iasi Airport were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to Iasi Airport?

  • How old do you have to be to fly from London Heathrow Airport to Iasi Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Iasi Airport.

  • What documentation or ID do you need to fly to Iasi Airport?

    The travel and health documents you'll need for your trip to Iasi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Iasi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London Heathrow Airport to Iaşi?

Best airlines flying from London Heathrow Airport to Iaşi

Compare and see reviews for airlines that fly from London Heathrow Airport to Iaşi with momondo
Airline
Rating
Free Cancellation
Price
Wizz AirPriceFrom £83Free CancellationRating
6.8
381 reviews
Search Wizz Air flights
Austrian AirlinesPriceFrom £169Free CancellationRating
7.6
853 reviews
Search Austrian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Iaşi?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Iaşi from London.

Can I find flights from London to Iaşi with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Iaşi flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Iaşi?

momondo helps you find the best flight between London and Iaşi by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Iaşi right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Iaşi, momondo offers a useful price alert feature which will track prices for flights to Iaşi from London and alert you when they change.

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