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Cheap flights from London Heathrow Airport to Iaşi from £114

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 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Iaşi (LHR-IAS)

Cheap return flights

Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:00 - 21:40IAS-LHR
7h 40m1 stop
£143Austrian Airlines
Find Deal
Tue, 23 Sep - Tue, 30 Sep
Austrian Airlines Logo
19:30 - 15:20LHR-IAS
17h 50m1 stop
Austrian Airlines Logo
05:20 - 08:20IAS-LHR
5h 00m1 stop
£149Austrian Airlines
Find Deal
Mon, 22 Sep - Wed, 1 Oct
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:00 - 08:45IAS-LHR
18h 45m1 stop
£151Austrian Airlines
Find Deal
Mon, 15 Sep - Wed, 24 Sep
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
Fri, 26 Dec - Wed, 14 Jan
Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Logo
16:00 - 22:40IAS-LHR
8h 40m2 stops
£166
Find Deal
Tue, 23 Sep - Tue, 30 Sep
Logo
20:25 - 15:20LHR-IAS
16h 55m2 stops
Logo
05:20 - 18:40IAS-LHR
15h 20m1 stop
£180
Find Deal
Mon, 22 Sep - Wed, 1 Oct
Lufthansa Logo
20:25 - 15:20LHR-IAS
16h 55m2 stops
Lufthansa Logo
16:00 - 22:40IAS-LHR
8h 40m2 stops
£200Lufthansa
Find Deal
Mon, 22 Sep - Wed, 1 Oct
Lufthansa Logo
06:30 - 15:20LHR-IAS
6h 50m2 stops
Lufthansa Logo
16:00 - 22:40IAS-LHR
8h 40m2 stops
£205Lufthansa
Find Deal
Tue, 23 Sep - Tue, 30 Sep
KLM Logo
10:00 - 20:30LHR-IAS
8h 30m2 stops
KLM Logo
09:25 - 19:15IAS-LHR
11h 50m2 stops
£288KLM
Find Deal
Fri, 26 Dec - Wed, 14 Jan
KLM Logo
17:05 - 09:00LHR-IAS
13h 55m2 stops
KLM Logo
09:25 - 17:00IAS-LHR
9h 35m2 stops
£301KLM
Find Deal
Thu, 25 Dec - Tue, 13 Jan

Lufthansa flights from London Heathrow Airport to Iaşi

Our best Lufthansa deals on London Heathrow Airport to Iaşi flight tickets
Lufthansa
22 Sept
LHR20:25London Heathrow
16h 55m
2 stops
IAS15:20Iasi
1 Oct
IAS16:00Iasi
8h 40m
2 stops
LHR22:40London Heathrow
£200
Find similar
Lufthansa
23 Sept
LHR06:30London Heathrow
6h 50m
2 stops
IAS15:20Iasi
30 Sept
IAS16:00Iasi
8h 40m
2 stops
LHR22:40London Heathrow
£205
Find similar
Lufthansa
21 Sept
LHR06:30London Heathrow
16h 50m
2 stops
IAS01:20Iasi
30 Sept
IAS16:00Iasi
8h 40m
2 stops
LHR22:40London Heathrow
£210
Find similar

Austrian Airlines flights from London Heathrow Airport to Iaşi

Our best Austrian Airlines deals on London Heathrow Airport to Iaşi flight tickets
Austrian Airlines
23 Sept
LHR06:00London Heathrow
7h 20m
1 stop
IAS15:20Iasi
30 Sept
IAS16:00Iasi
7h 40m
1 stop
LHR21:40London Heathrow
£143
Find similar
Austrian Airlines
22 Sept
LHR19:30London Heathrow
17h 50m
1 stop
IAS15:20Iasi
1 Oct
IAS05:20Iasi
5h 00m
1 stop
LHR08:20London Heathrow
£149
Find similar
Austrian Airlines
15 Sept
LHR06:00London Heathrow
7h 20m
1 stop
IAS15:20Iasi
24 Sept
IAS16:00Iasi
18h 45m
1 stop
LHR08:45London Heathrow
£151
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 25 August 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

Tue 23/9

06:00-15:20

1 stop7h 20m

Iasi

Tue 30/9

16:00-21:40

1 stop7h 40m

£143

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 22/9

19:30-15:20

1 stop17h 50m

Iasi

Wed 1/10

05:20-08:20

1 stop5h 00m

£149

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 15/9

06:00-15:20

1 stop7h 20m

Iasi

Wed 24/9

16:00-08:45

1 stop18h 45m

£151

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Fri 26/12

06:00-15:20

1 stop7h 20m

Iasi

Wed 14/1

16:05-21:40

1 stop7h 35m

£151

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 23/9

06:00-15:20

1 stop7h 20m

Iasi

Tue 30/9

16:00-22:40

2 stops8h 40m

£166

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 22/9

20:25-15:20

2 stops16h 55m

Iasi

Wed 1/10

05:20-18:40

1 stop15h 20m

£180

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 22/9

20:25-15:20

2 stops16h 55m

Iasi

Wed 1/10

16:00-22:40

2 stops8h 40m

£200

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 23/9

06:30-15:20

2 stops6h 50m

Iasi

Tue 30/9

16:00-22:40

2 stops8h 40m

£205

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Fri 26/12

10:00-20:30

2 stops8h 30m

Iasi

Wed 14/1

09:25-19:15

2 stops11h 50m

£288

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 25/12

17:05-09:00

2 stops13h 55m

Iasi

Tue 13/1

09:25-17:00

2 stops9h 35m

£301

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 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 £137. 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 £169.

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 Thursday. Travellers who choose to depart for Iaşi on a Thursday will often find tickets for as low as £171. Flights from London Heathrow Airport to Iaşi on a Saturday will generally be more expensive and average around £194. 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 £172. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £317 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 £253 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 £202 on momondo.

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

You could potentially save up to 11% 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 £82Free CancellationRating
6.8
373 reviews
Search Wizz Air flights
Austrian AirlinesPriceFrom £177Free CancellationRating
7.6
835 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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