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Cheap flights from London Heathrow Airport to Iaşi from £68

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 16/1. 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
£141Austrian Airlines
Find Deal
Mon, 12 Jan - Wed, 21 Jan
Austrian Airlines Logo
19:25 - 15:20LHR-IAS
17h 55m1 stop
Austrian Airlines Logo
16:05 - 21:40IAS-LHR
7h 35m1 stop
£144Austrian Airlines
Find Deal
Sat, 10 Jan - Mon, 19 Jan
Multiple Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Multiple Airlines Logo
16:05 - 08:05IAS-LHR
18h 00m2 stops
£169Multiple Airlines
Find Deal
Mon, 12 Jan - Wed, 21 Jan
Lufthansa Logo
06:35 - 15:20LHR-IAS
30h 45m2 stops
Lufthansa Logo
16:05 - 21:00IAS-LHR
6h 55m2 stops
£174Lufthansa
Find Deal
Tue, 6 Jan - Wed, 14 Jan
Austrian Airlines Logo
19:25 - 15:20LHR-IAS
17h 55m1 stop
Austrian Airlines Logo
16:05 - 08:20IAS-LHR
18h 15m1 stop
£177Austrian Airlines
Find Deal
Sat, 3 Jan - Sun, 18 Jan
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
05:20 - 08:20IAS-LHR
5h 00m1 stop
£186Austrian Airlines
Find Deal
Thu, 9 Apr - Mon, 20 Apr
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:05 - 21:40IAS-LHR
7h 35m1 stop
£187Austrian Airlines
Find Deal
Wed, 31 Dec - Sun, 11 Jan
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
16:00 - 18:40IAS-LHR
4h 40m1 stop
£188Austrian Airlines
Find Deal
Wed, 8 Apr - Sat, 18 Apr
Lufthansa Logo
07:40 - 15:20LHR-IAS
29h 40m2 stops
Lufthansa Logo
16:05 - 13:00IAS-LHR
22h 55m2 stops
£189Lufthansa
Find Deal
Sat, 10 Jan - Mon, 19 Jan
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
Austrian Airlines Logo
05:20 - 08:20IAS-LHR
5h 00m1 stop
£190Austrian Airlines
Find Deal
Wed, 8 Apr - Fri, 17 Apr

Austrian Airlines flights from London Heathrow Airport to Iaşi

Our best Austrian Airlines deals on London Heathrow Airport to Iaşi flight tickets
Austrian Airlines
12 Jan
LHR06:00London Heathrow
7h 20m
1 stop
IAS15:20Iasi
21 Jan
IAS16:05Iasi
7h 35m
1 stop
LHR21:40London Heathrow
£141
Find similar
Austrian Airlines
10 Jan
LHR19:25London Heathrow
17h 55m
1 stop
IAS15:20Iasi
19 Jan
IAS16:05Iasi
7h 35m
1 stop
LHR21:40London Heathrow
£144
Find similar
Austrian Airlines
3 Jan
LHR19:25London Heathrow
17h 55m
1 stop
IAS15:20Iasi
18 Jan
IAS16:05Iasi
18h 15m
1 stop
LHR08:20London Heathrow
£176
Find similar

Lufthansa flights from London Heathrow Airport to Iaşi

Our best Lufthansa deals on London Heathrow Airport to Iaşi flight tickets
Lufthansa
6 Jan
LHR06:35London Heathrow
30h 45m
2 stops
IAS15:20Iasi
14 Jan
IAS16:05Iasi
6h 55m
2 stops
LHR21:00London Heathrow
£174
Find similar
Lufthansa
10 Jan
LHR07:40London Heathrow
29h 40m
2 stops
IAS15:20Iasi
19 Jan
IAS16:05Iasi
22h 55m
2 stops
LHR13:00London Heathrow
£189
Find similar
Lufthansa
12 Jan
LHR06:30London Heathrow
6h 50m
2 stops
IAS15:20Iasi
21 Jan
IAS16:05Iasi
22h 55m
2 stops
LHR13:00London Heathrow
£191
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 26 November 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

Mon 12/1

06:00-15:20

1 stop7h 20m

Iasi

Wed 21/1

16:05-21:40

1 stop7h 35m

£141

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sat 10/1

19:25-15:20

1 stop17h 55m

Iasi

Mon 19/1

16:05-21:40

1 stop7h 35m

£144

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 12/1

06:00-15:20

1 stop7h 20m

Iasi

Wed 21/1

16:05-08:05

2 stops18h 00m

£169

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 6/1

06:35-15:20

2 stops30h 45m

Iasi

Wed 14/1

16:05-21:00

2 stops6h 55m

£174

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sat 3/1

19:25-15:20

1 stop17h 55m

Iasi

Sun 18/1

16:05-08:20

1 stop18h 15m

£176

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 9/4

06:00-15:20

1 stop7h 20m

Iasi

Mon 20/4

05:20-08:20

1 stop5h 00m

£186

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Wed 31/12

06:00-15:20

1 stop7h 20m

Iasi

Sun 11/1

16:05-21:40

1 stop7h 35m

£187

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Wed 8/4

06:00-15:20

1 stop7h 20m

Iasi

Sat 18/4

16:00-18:40

1 stop4h 40m

£188

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sat 10/1

07:40-15:20

2 stops29h 40m

Iasi

Mon 19/1

16:05-13:00

2 stops22h 55m

£189

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Wed 8/4

06:00-15:20

1 stop7h 20m

Iasi

Fri 17/4

05:20-08:20

1 stop5h 00m

£190

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 £141. 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 £162.

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 £168. Flights from London Heathrow Airport to Iaşi on a Wednesday will generally be more expensive and average around £204. 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 £178. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £325 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.

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

You could potentially save up to 19% 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

Fastest flight time

7h 20m

Direct flights

None
The fastest flight from London Heathrow Airport to Iaşi takes 7h 20m
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 £84Free CancellationRating
6.8
393 reviews
Search Wizz Air flights
Austrian AirlinesPriceFrom £171Free CancellationRating
7.6
874 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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