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Cheap flights from Iaşi to London from £86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Iaşi to London departing on 16/9. 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 Iaşi to London

Cheap return flights

Austrian Airlines Logo
05:20 - 09:00IAS-LHR
5h 40m1 stop
Austrian Airlines Logo
09:05 - 01:20LHR-IAS
14h 15m1 stop
£142Austrian Airlines
Find Deal
Wed, 24 Sep - Tue, 30 Sep
Austrian Airlines Logo
16:00 - 08:45IAS-LHR
18h 45m1 stop
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
£144Austrian Airlines
Find Deal
Thu, 18 Sep - Wed, 24 Sep
Austrian Airlines Logo
05:20 - 14:20IAS-LHR
11h 00m1 stop
Austrian Airlines Logo
09:05 - 01:20LHR-IAS
14h 15m1 stop
£145Austrian Airlines
Find Deal
Wed, 8 Oct - Sun, 12 Oct
Austrian Airlines Logo
16:00 - 18:40IAS-LHR
4h 40m1 stop
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
£145Austrian Airlines
Find Deal
Thu, 16 Oct - Mon, 20 Oct
Austrian Airlines Logo
05:20 - 08:45IAS-LHR
5h 25m1 stop
Austrian Airlines Logo
19:30 - 15:20LHR-IAS
17h 50m1 stop
£155Austrian Airlines
Find Deal
Fri, 19 Sep - Mon, 22 Sep
Austrian Airlines Logo
16:00 - 21:40IAS-LHR
7h 40m1 stop
Austrian Airlines Logo
06:00 - 15:20LHR-IAS
7h 20m1 stop
£159Austrian Airlines
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Logo
05:20 - 12:40IAS-LHR
9h 20m2 stops
Logo
09:05 - 01:20LHR-IAS
14h 15m1 stop
£165
Find Deal
Wed, 24 Sep - Tue, 30 Sep
Lufthansa Logo
16:00 - 20:40IAS-LHR
6h 40m2 stops
Lufthansa Logo
09:00 - 15:20LHR-IAS
28h 20m2 stops
£182Lufthansa
Find Deal
Wed, 10 Sep - Sat, 13 Sep
Lufthansa Logo
05:20 - 17:40IAS-LHR
14h 20m2 stops
Lufthansa Logo
19:10 - 15:20LHR-IAS
18h 10m2 stops
£188Lufthansa
Find Deal
Fri, 19 Sep - Mon, 22 Sep
Lufthansa Logo
05:20 - 12:40IAS-LHR
9h 20m2 stops
Lufthansa Logo
11:30 - 01:20LHR-IAS
11h 50m2 stops
£195Lufthansa
Find Deal
Wed, 24 Sep - Tue, 30 Sep

Lufthansa flights from Iaşi to London Heathrow Airport

Our best Lufthansa deals on Iaşi to London Heathrow Airport flight tickets
Lufthansa
10 Sept
IAS16:00Iasi
6h 40m
2 stops
LHR20:40London Heathrow
13 Sept
LHR09:00London Heathrow
28h 20m
2 stops
IAS15:20Iasi
£182
Find similar
Lufthansa
19 Sept
IAS05:20Iasi
14h 20m
2 stops
LHR17:40London Heathrow
22 Sept
LHR19:10London Heathrow
18h 10m
2 stops
IAS15:20Iasi
£188
Find similar
Lufthansa
24 Sept
IAS05:20Iasi
9h 20m
2 stops
LHR12:40London Heathrow
30 Sept
LHR11:30London Heathrow
11h 50m
2 stops
IAS01:20Iasi
£195
Find similar

Austrian Airlines flights from Iaşi to London Heathrow Airport

Our best Austrian Airlines deals on Iaşi to London Heathrow Airport flight tickets
Austrian Airlines
24 Sept
IAS05:20Iasi
5h 40m
1 stop
LHR09:00London Heathrow
30 Sept
LHR09:05London Heathrow
14h 15m
1 stop
IAS01:20Iasi
£142
Find similar
Austrian Airlines
18 Sept
IAS16:00Iasi
18h 45m
1 stop
LHR08:45London Heathrow
24 Sept
LHR06:00London Heathrow
7h 20m
1 stop
IAS15:20Iasi
£144
Find similar
Austrian Airlines
8 Oct
IAS05:20Iasi
11h 00m
1 stop
LHR14:20London Heathrow
12 Oct
LHR09:05London Heathrow
14h 15m
1 stop
IAS01:20Iasi
£145
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Iaşi to London Heathrow Airport 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 14 August 2025.
Use the filters below to find and compare flights from Iaşi to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IaşiLondon

IAS - LHR

IASLHR

Iasi

Wed 24/9

05:20-09:00

1 stop5h 40m

London Heathrow

Tue 30/9

09:05-01:20

1 stop14h 15m

£142

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 18/9

16:00-08:45

1 stop18h 45m

London Heathrow

Wed 24/9

06:00-15:20

1 stop7h 20m

£144

IaşiLondon

IAS - LHR

IASLHR

Iasi

Wed 8/10

05:20-14:20

1 stop11h 00m

London Heathrow

Sun 12/10

09:05-01:20

1 stop14h 15m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 16/10

16:00-18:40

1 stop4h 40m

London Heathrow

Mon 20/10

06:00-15:20

1 stop7h 20m

£145

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 19/9

05:20-08:45

1 stop5h 25m

London Heathrow

Mon 22/9

19:30-15:20

1 stop17h 50m

£155

IaşiLondon

IAS - LHR

IASLHR

Iasi

Tue 7/10

16:00-21:40

1 stop7h 40m

London Heathrow

Sat 11/10

06:00-15:20

1 stop7h 20m

£159

IaşiLondon

IAS - LHR

IASLHR

Iasi

Wed 24/9

05:20-12:40

2 stops9h 20m

London Heathrow

Tue 30/9

09:05-01:20

1 stop14h 15m

£165

IaşiLondon

IAS - LHR

IASLHR

Iasi

Wed 10/9

16:00-20:40

2 stops6h 40m

London Heathrow

Sat 13/9

09:00-15:20

2 stops28h 20m

£182

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 19/9

05:20-17:40

2 stops14h 20m

London Heathrow

Mon 22/9

19:10-15:20

2 stops18h 10m

£188

IaşiLondon

IAS - LHR

IASLHR

Iasi

Wed 24/9

05:20-12:40

2 stops9h 20m

London Heathrow

Tue 30/9

11:30-01:20

2 stops11h 50m

£195

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 London from

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

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 day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Iaşi is on a Saturday. momondo users have found tickets for Saturday departures for as low as £182. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £225.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Iaşi to London Heathrow Airport in the morning for as low as £196. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £206 on average. Flights to London Heathrow Airport from Iaşi in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from Iaşi to London Heathrow Airport

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

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

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

Best price found

£86

Fastest flight time

4h 40m

Direct flights

None
The best one-way flight to London Heathrow Airport from Iaşi in the past 72 hours is £86. The best return flight deal from Iaşi to London Heathrow Airport found on momondo in the last 72 hours is £142.
The fastest flight from Iaşi to London Heathrow Airport takes 4h 40m
There are no direct flights from Iaşi to London Heathrow Airport. Popular non-direct route for this connection is Iasi Airport - London Heathrow Airport.
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  • How far is Iasi to London Heathrow by plane?

    Iasi and London Heathrow are 1288.7 mi apart from one another. By plane, this route typically takes 4h 40m.

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

    Prices for flights from Iasi Airport to London Heathrow Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Iasi Airport to London Heathrow Airport.

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

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

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Luton
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Slough
Maidstone
Swindon
Gatwick
Southend-on-Sea
Canterbury
Stratford-upon-Avon
Ipswich
Ilford
Guildford
Colchester
Swanage
Worthing
Hounslow
Dartford
Dover

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Iaşi to London . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Iaşi to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Iaşi and London 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 Iaşi to London right now. Can momondo alert me if prices change?

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

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