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Cheap flights from London Heathrow Airport to Iaşi from £112

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IAS
31 Oct — 7 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London Heathrow to Iasi are usually found in January or June, booked 78 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

Cheap flight deals from Heathrow to Iaşi

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Iaşi (IAS). 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 1 October 2025.

Round-trip from

£144

One-way from

£112

Popular in

May

Cheapest in

January

Average price

£203
Austrian Airlines
  • Austrian Airlines
  • 14/2-18/2
  • 2 total stops
  • 36h 10m total
  • London to Iaşi
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13/3
  • 13/3
  • 1 total stop
  • 16h 55m total
  • London to Iaşi
Search Deals
High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Heathrow to Iaşi

Cheapest flights from Heathrow to Iaşi
Explore the most affordable flight options available from Heathrow to Iaşi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2025.

Thu 13/1106:00LHR - IAS
1 stop7h 20mAustrian Airlines
Thu 20/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Deal found 29/9£145
Sun 5/1009:05LHR - IAS
1 stop14h 15mAustrian Airlines
Wed 15/1005:20IAS - LHR
1 stop5h 40mAustrian Airlines
Deal found 29/9£167
Fri 7/1106:00LHR - IAS
1 stop7h 20mAustrian Airlines
Fri 21/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Deal found 30/9£169
Mon 3/1106:00LHR - IAS
1 stop7h 20mAustrian Airlines
Mon 10/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Deal found 30/9£173
Sun 5/1006:00LHR - IAS
1 stop17h 20mAustrian Airlines
Mon 6/1005:20IAS - LHR
1 stop5h 00mAustrian Airlines
Deal found 29/9£173
Sun 5/1009:05LHR - IAS
1 stop14h 15mAustrian Airlines
Tue 14/1016:00IAS - LHR
1 stop7h 40mAustrian Airlines
Deal found 30/9£176
Thu 13/1106:00LHR - IAS
1 stop7h 20mMultiple Airlines
Thu 20/1116:05IAS - LHR
2 stops8h 15mMultiple Airlines
Deal found 29/9£179
Mon 3/1106:00LHR - IAS
1 stop7h 20mAustrian Airlines
Sun 9/1116:05IAS - LHR
1 stop18h 15mAustrian Airlines
Deal found 29/9£187
Thu 23/1009:05LHR - IAS
1 stop14h 15mAustrian Airlines
Sun 2/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Deal found 30/9£189
Thu 30/1006:00LHR - IAS
1 stop7h 20mAustrian Airlines
Sun 2/1116:05IAS - LHR
1 stop7h 35mAustrian Airlines
Deal found 29/9£190
Fri 7/1106:00LHR - IAS
1 stop7h 20mMultiple Airlines
Fri 21/1116:05IAS - LHR
2 stops6h 55mMultiple Airlines
Deal found 30/9£190

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 1 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Iaşi that are best for you.

Fly from

Heathrow

Fly to

Iaşi

Route

Depart

Return

Price

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 13/11

06:00-15:20

1 stop7h 20m

Iasi

Thu 20/11

16:05-21:40

1 stop7h 35m

£145

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sat 14/3

19:25-15:20

1 stop17h 55m

Iasi

Mon 16/3

16:05-14:05

1 stop24h 00m

£152

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 13/11

06:00-15:20

1 stop7h 20m

Iasi

Thu 20/11

16:05-21:00

2 stops6h 55m

£167

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 3/11

06:00-15:20

1 stop7h 20m

Iasi

Mon 10/11

16:05-21:40

1 stop7h 35m

£173

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Fri 7/11

06:00-15:20

1 stop7h 20m

Iasi

Sun 9/11

16:05-21:40

1 stop7h 35m

£189

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 23/10

09:05-01:20

1 stop14h 15m

Iasi

Sun 2/11

16:05-21:40

1 stop7h 35m

£189

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 3/11

06:00-15:20

1 stop7h 20m

Iasi

Sun 9/11

16:05-21:40

1 stop7h 35m

£190

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 30/10

06:00-15:20

1 stop7h 20m

Iasi

Sun 2/11

16:05-21:40

1 stop7h 35m

£190

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Fri 7/11

06:00-15:20

1 stop7h 20m

Iasi

Fri 21/11

16:05-21:00

2 stops6h 55m

£190

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 27/10

06:00-15:20

1 stop7h 20m

Iasi

Mon 3/11

16:05-21:40

1 stop7h 35m

£193

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 18 results
1
2

Best time to book a flight from Heathrow to Iaşi

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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Iaşi

How far ahead should I book a flight from London Heathrow Airport to Iaşi?

Use this chart to determine the optimal time to book a return flight from Heathrow to Iaşi. Price data was last updated on 26 September 2025.

The price you pay for your flight from London Heathrow Airport to Iaşi may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Iaşi?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Iaşi (average of £69). Flying from London Heathrow Airport to Iaşi in December is currently the most expensive (average of £359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to IAS?

Find hourly flight availability from Heathrow to Iaşi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 October 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Iaşi is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 50% on airfare.

Reviews of airlines servicing Iaşi

Get insights into the airlines that provide service to Iaşi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Iaşi. Reviews last updated 1 October 2025.
Read reviews from past customers who have flown with Austrian Airlines and Wizz Air from London Heathrow Airport to Iaşi. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
850 reviews
Check prices

Overall

7.6

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!
Austrian Airlines
7.6
Good
850 reviews
Austrian Airlines
7.6
Good
850 reviews
Check prices

Overall

7.6

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!
Wizz Air
6.8
Okay
381 reviews
Austrian Airlines
7.6
Good
850 reviews
Check prices

Overall

7.6

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

Related info for your journey

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

    If you book a flight to Iaşi from London Heathrow, you will be flying to 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 London Heathrow to Iasi per day from 2 different airlines.

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

    Airlines like Austrian Airlines fly from London Heathrow Airport to Iaşi in about 7h 20m. The time it takes to get you to your destination can typically vary by up to . London Heathrow Airport and Iaşi are separated by a distance of 1289 mi.

  • What are the cheapest airlines flying from London Heathrow Airport to Iaşi round-trip?

    Currently priced at £83, Wizz Air will fly you from London Heathrow Airport to Iaşi and back. In addition to Wizz Air, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Austrian Airlines for as low as £168. Users have found that Wizz Air is 67% cheaper than the other options available to this destination.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from London Heathrow Airport to Iaşi?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Iaşi (average of £69). Flying from London Heathrow Airport to Iaşi in December is currently the most expensive (average of £359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Heathrow to Iaşi

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Top 2 airlines flying from Heathrow to Iaşi

Discover the top 2 airlines that operate flights from Heathrow to Iaşi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Wizz AirCheapest£83Average£213FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Austrian AirlinesCheapest£168Average£300FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Iaşi?

When you search for this flight from Heathrow to Iaşi, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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

Need flexible booking options for your flight to Iaşi from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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