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Cheap flights from Iaşi to London Heathrow Airport from £89

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAS — LHR
24 Apr — 1 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 25 March 2026.

Fri 1/516:00
IAS
-
LHR
1 stop7h 40m
Austrian Airlines
Sun 3/506:00
LHR
-
IAS
1 stop17h 20m
Austrian Airlines
Deal found 23/3£151
Wed 22/416:00
IAS
-
LHR
1 stop4h 40m
Austrian Airlines
Wed 29/406:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 23/3£164
Fri 1/516:00
IAS
-
LHR
2 stops8h 40m
Multiple Airlines
Sun 3/506:00
LHR
-
IAS
1 stop17h 20m
Multiple Airlines
Deal found 23/3£166
Sun 12/416:00
IAS
-
LHR
1 stop18h 20m
Austrian Airlines
Tue 21/406:00
LHR
-
IAS
1 stop17h 20m
Austrian Airlines
Deal found 23/3£169
Thu 7/516:00
IAS
-
LHR
1 stop7h 40m
Austrian Airlines
Wed 13/506:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 22/3£169
Wed 1/405:20
IAS
-
LHR
1 stop18h 20m
Austrian Airlines
Tue 7/406:00
LHR
-
IAS
1 stop17h 20m
Austrian Airlines
Deal found 21/3£170
Wed 6/516:00
IAS
-
LHR
1 stop4h 40m
Austrian Airlines
Wed 13/506:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 22/3£172
Fri 3/405:20
IAS
-
LHR
1 stop5h 00m
Austrian Airlines
Sun 19/409:05
LHR
-
IAS
1 stop14h 15m
Austrian Airlines
Deal found 23/3£172
Wed 22/405:20
IAS
-
LHR
1 stop5h 00m
Multiple Airlines
Wed 29/420:25
LHR
-
IAS
2 stops26h 55m
Multiple Airlines
Deal found 23/3£173
Thu 23/416:00
IAS
-
LHR
1 stop7h 40m
Austrian Airlines
Wed 29/406:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 22/3£174
Fri 8/505:20
IAS
-
LHR
1 stop5h 00m
Austrian Airlines
Fri 15/506:00
LHR
-
IAS
1 stop7h 20m
Austrian Airlines
Deal found 24/3£178
Thu 21/516:00
IAS
-
LHR
1 stop7h 40m
Austrian Airlines
Tue 26/506:00
LHR
-
IAS
1 stop17h 20m
Austrian Airlines
Deal found 23/3£178

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 25 March 2026.

Round-trip from

£151

One-way from

£89

Popular in

July

Cheapest in

February

Average price

£102
Austrian Airlines
  • Austrian Airlines
  • 1/5-3/5
  • 2 total stops
  • 25h 00m total
  • Iaşi to London
Search Deals
27/4
  • 27/4
  • 1 total stop
  • 9h 00m total
  • Iaşi to London
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£36 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 25 March 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 7/5

16:00-21:40

1 stop7h 40m

London Heathrow

Wed 13/5

06:00-15:20

1 stop7h 20m

£169

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 8/5

05:20-20:45

2 stops17h 25m

London Heathrow

Fri 15/5

06:00-15:20

1 stop7h 20m

£197

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 23/4

16:00-08:20

1 stop18h 20m

London Heathrow

Wed 29/4

19:30-15:20

1 stop17h 50m

£202

IaşiLondon

IAS - LHR

IASLHR

Iasi

Sat 2/5

16:00-08:20

1 stop18h 20m

London Heathrow

Sat 9/5

19:30-15:20

1 stop17h 50m

£203

IaşiLondon

IAS - LHR

IASLHR

Iasi

Sat 11/4

16:00-21:40

1 stop7h 40m

London Heathrow

Tue 14/4

12:20-01:20

1 stop11h 00m

£203

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 7/5

16:00-21:40

1 stop7h 40m

London Heathrow

Wed 13/5

20:25-15:20

2 stops16h 55m

£204

IaşiLondon

IAS - LHR

IASLHR

Iasi

Sat 2/5

16:00-11:25

1 stop21h 25m

London Heathrow

Mon 11/5

06:00-15:20

1 stop7h 20m

£211
Fastest return journey

IaşiLondon

IAS - LHR

IASLHR

Iasi

Thu 23/4

16:00-21:40

1 stop7h 40m

London Heathrow

Wed 29/4

06:30-15:20

2 stops6h 50m

£213
Cheapest one-way

IaşiLondon

IAS - LHR

IASLHR

Iasi

Mon 30/3

13:05-20:05

1 stop9h 00m

£92

IaşiLondon

IAS - LHR

IASLHR

Iasi

Fri 24/4

18:55-09:10

1 stop16h 15m

£94

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 can get you from Iaşi to London Heathrow Airport in just under 7h 40m. Your travel time can differ by up to . Airlines will cover a distance of 1289 mi.

  • 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
Eastbourne
Guildford
Watford
Kingston upon Thames
Romford
Ipswich
Swindon
Bedford

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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.

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