Find flights
When to book
FAQs

Cheap flights from Iaşi to London Heathrow Airport from £53

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAS — LHR
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Iaşi to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Iaşi to Heathrow
Explore the most affordable flight options available from Iaşi to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2026.

Mon 8/610:00
IAS
-
LHR
1 stop13h 50m
Multiple Airlines
Wed 17/607:45
LHR
-
IAS
1 stop10h 15m
Multiple Airlines
Deal found 16/4£206
Mon 1/617:45
IAS
-
LHR
2 stops41h 25m
Multiple Airlines
Mon 8/620:50
LHR
-
IAS
2 stops22h 30m
Multiple Airlines
Deal found 15/4£208
Mon 27/421:20
IAS
-
LHR
1 stop24h 20m
Multiple Airlines
Tue 5/515:00
LHR
-
IAS
1 stop17h 30m
Multiple Airlines
Deal found 12/4£222
Fri 24/418:55
IAS
-
LHR
1 stop27h 10m
Multiple Airlines
Sat 2/520:10
LHR
-
IAS
1 stop24h 00m
Multiple Airlines
Deal found 14/4£246
Tue 11/816:00
IAS
-
LHR
1 stop7h 40m
Austrian Airlines
Mon 31/806:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 13/4£249
Thu 28/516:00
IAS
-
LHR
1 stop18h 20m
Austrian Airlines
Thu 4/606:00
LHR
-
IAS
1 stop17h 20m
Austrian Airlines
Deal found 12/4£251
Fri 24/405:20
IAS
-
LHR
1 stop5h 00m
Austrian Airlines
Sun 3/506:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 14/4£252
Wed 29/405:20
IAS
-
LHR
1 stop5h 00m
Austrian Airlines
Sun 3/506:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 13/4£252
Mon 1/616:00
IAS
-
LHR
1 stop18h 20m
Austrian Airlines
Wed 10/606:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 16/4£254

Find flight deals from Iaşi to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Iaşi (IAS) to Heathrow (LHR). 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 17 April 2026.

Round-trip from

£179

One-way from

£53

Popular in

August

Cheapest in

February

Average price

£192
4/6-12/6
  • 4/6-12/6
  • 2 total stops
  • 22h 45m total
  • Iaşi to London
Search Deals
18/5
  • 18/5
  • 2 total stops
  • 21h 45m total
  • Iaşi to London
Search Deals
Highest demand for flights based on searches. 35% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Iaşi to Heathrow 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 17 April 2026.
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

Cheapest return flight

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 4/6

16:00-21:40

1 stop7h 40m

London Heathrow

Thu 11/6

06:00-01:20

1 stop17h 20m

£252
Fastest return journey

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 27/4

16:00-18:40

1 stop4h 40m

London Heathrow

Tue 5/5

06:00-15:20

1 stop7h 20m

£252

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 1/6

16:00-08:20

1 stop18h 20m

London Heathrow

Wed 10/6

06:00-15:20

1 stop7h 20m

£278

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 4/6

09:15-17:35

2 stops10h 20m

London Heathrow

Thu 11/6

20:55-21:00

2 stops22h 05m

£294

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 1/6

08:55-19:25

2 stops12h 30m

London Heathrow

Mon 8/6

20:55-08:30

2 stops33h 35m

£301

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 11/6

16:00-08:20

1 stop18h 20m

London Heathrow

Wed 17/6

06:00-15:20

1 stop7h 20m

£302

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 4/6

16:00-09:55

2 stops19h 55m

London Heathrow

Thu 11/6

07:25-01:20

2 stops15h 55m

£303

IaşiLondon

IAS - LHR

IASLHR

Iasi

Sat 2/5

16:00-08:20

1 stop18h 20m

London Heathrow

Wed 6/5

19:30-15:20

1 stop17h 50m

£307

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 14/8

16:00-21:40

1 stop7h 40m

London Heathrow

Mon 17/8

06:00-15:20

1 stop7h 20m

£307

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 8/5

05:20-19:40

2 stops16h 20m

London Heathrow

Mon 11/5

17:50-15:20

2 stops19h 30m

£312

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Iaşi to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Iaşi 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.

Related info for your journey

Find useful and relevant information for your journey from Iaşi to Heathrow. 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 from for flights from Iaşi to London Heathrow?

    If you book a flight to London Heathrow from Iaşi, you will be flying from 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 Iasi to London Heathrow per day from 0 different airlines.

  • How long is the flight from Iaşi to London Heathrow Airport?

    Austrian Airlines and KLM can get you from Iaşi to London Heathrow Airport in just under 7h 40m. Your travel time can differ by up to 4h 50m. Airlines will cover a distance of 1289 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Iaşi to Heathrow that include hotel bookings?

    Yes. In addition to deals on Iaşi to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Iaşi to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Iaşi to Heathrow.

  • Can I find deals for business class flights from Iaşi to Heathrow?

    Yes. Cheapflights offers flight deals from Iaşi to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Chelmsford
Ipswich
Southend-on-Sea

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.

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 Iaşi to Heathrow?

Deals for Iaşi to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Iaşi to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Iaşi.

Can Cheapflights find flights from Iaşi to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Iaşi to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Iaşi to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Iaşi to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.