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Cheap flights from London to Iaşi from $158

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 to Iaşi departing on 9/7. 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 London to Iaşi (LON-IAS)

Cheap round-trip flights

Austrian Airlines Logo
6:00 am - 3:20 pmLHR-IAS
7h 20m1 stop
Austrian Airlines Logo
4:00 pm - 9:40 pmIAS-LHR
7h 40m1 stop
$205Austrian Airlines
Find Deal
Mon, Sep 15 - Wed, Sep 24
Austrian Airlines Logo
6:00 am - 1:20 amLHR-IAS
17h 20m1 stop
Austrian Airlines Logo
4:00 pm - 8:20 amIAS-LHR
18h 20m1 stop
$206Austrian Airlines
Find Deal
Sun, Sep 21 - Tue, Sep 30
Austrian Airlines Logo
10:25 am - 1:20 amLHR-IAS
12h 55m1 stop
Austrian Airlines Logo
4:00 pm - 8:45 amIAS-LHR
18h 45m1 stop
$220Austrian Airlines
Find Deal
Tue, Sep 9 - Sat, Sep 13
Lufthansa Logo
7:10 pm - 3:20 pmLHR-IAS
18h 10m2 stops
Lufthansa Logo
4:00 pm - 10:40 pmIAS-LHR
8h 40m2 stops
$272Lufthansa
Find Deal
Mon, Sep 22 - Wed, Oct 1
Logo
7:30 pm - 3:20 pmLHR-IAS
17h 50m1 stop
Logo
4:00 pm - 10:10 pmIAS-LHR
8h 10m2 stops
$275
Find Deal
Fri, Sep 26 - Mon, Sep 29
Lufthansa Logo
7:30 am - 1:20 amLHR-IAS
15h 50m2 stops
Lufthansa Logo
4:00 pm - 10:40 pmIAS-LHR
8h 40m2 stops
$286Lufthansa
Find Deal
Sun, Sep 21 - Tue, Sep 30
Logo
8:30 am - 5:45 pmLCY-IAS
7h 15m1 stop
Logo
12:15 pm - 9:05 pmIAS-LCY
10h 50m2 stops
$518
Find Deal
Fri, Sep 26 - Mon, Sep 29
KLM Logo
7:45 am - 7:25 pmLCY-IAS
9h 40m2 stops
KLM Logo
9:25 am - 5:20 pmIAS-LCY
9h 55m2 stops
$549KLM
Find Deal
Thu, Dec 18 - Thu, Jan 1
KLM Logo
9:55 am - 7:35 pmLHR-IAS
7h 40m2 stops
KLM Logo
9:15 am - 5:35 pmIAS-LHR
10h 20m2 stops
$587KLM
Find Deal
Mon, Sep 22 - Wed, Oct 1
Turkish Airlines Logo
10:25 pm - 2:00 pmLHR-IAS
13h 35m2 stops
Turkish Airlines Logo
5:25 am - 3:05 pmIAS-LHR
11h 40m2 stops
$979Turkish Airlines
Find Deal
Mon, Sep 22 - Wed, Oct 1

Austrian Airlines flights from London to Iaşi

Our best Austrian Airlines deals on London to Iaşi flight tickets
Austrian Airlines
Sep 15
LHR6:00 amLondon Heathrow
7h 20m
1 stop
IAS3:20 pmIasi
Sep 24
IAS4:00 pmIasi
7h 40m
1 stop
LHR9:40 pmLondon Heathrow
$205
Find similar
Austrian Airlines
Sep 21
LHR6:00 amLondon Heathrow
17h 20m
1 stop
IAS1:20 amIasi
Sep 30
IAS4:00 pmIasi
18h 20m
1 stop
LHR8:20 amLondon Heathrow
$206
Find similar
Austrian Airlines
Sep 9
LHR10:25 amLondon Heathrow
12h 55m
1 stop
IAS1:20 amIasi
Sep 13
IAS4:00 pmIasi
18h 45m
1 stop
LHR8:45 amLondon Heathrow
$220
Find similar

KLM flights from London to Iaşi

Our best KLM deals on London to Iaşi flight tickets
KLM
Dec 18
LCY7:45 amLondon City
9h 40m
2 stops
IAS7:25 pmIasi
Jan 1
IAS9:25 amIasi
9h 55m
2 stops
LCY5:20 pmLondon City
$549
Find similar
KLM
Sep 22
LHR9:55 amLondon Heathrow
7h 40m
2 stops
IAS7:35 pmIasi
Oct 1
IAS9:15 amIasi
10h 20m
2 stops
LHR5:35 pmLondon Heathrow
$587
Find similar
KLM
Sep 15
LCY8:40 amLondon City
8h 55m
2 stops
IAS7:35 pmIasi
Sep 24
IAS9:15 amIasi
10h 05m
2 stops
LCY5:20 pmLondon City
$616
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London 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 832,500 searches. Data last updated August 26, 2025.
Use the filters below to find and compare flights from London to Iaşi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 9/15

6:00 am-3:20 pm

1 stop7h 20m

Iasi

Wed 9/24

4:00 pm-9:40 pm

1 stop7h 40m

$205

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sun 9/21

6:00 am-1:20 am

1 stop17h 20m

Iasi

Tue 9/30

4:00 pm-8:20 am

1 stop18h 20m

$206

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 9/9

10:25 am-1:20 am

1 stop12h 55m

Iasi

Sat 9/13

4:00 pm-8:45 am

1 stop18h 45m

$220

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 9/22

7:10 pm-3:20 pm

2 stops18h 10m

Iasi

Wed 10/1

4:00 pm-10:40 pm

2 stops8h 40m

$272

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Fri 9/26

7:30 pm-3:20 pm

1 stop17h 50m

Iasi

Mon 9/29

4:00 pm-10:10 pm

2 stops8h 10m

$275

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sun 9/21

7:30 am-1:20 am

2 stops15h 50m

Iasi

Tue 9/30

4:00 pm-10:40 pm

2 stops8h 40m

$286

LondonIaşi

LCY - IAS

LCYIAS

London City

Fri 9/26

8:30 am-5:45 pm

1 stop7h 15m

Iasi

Mon 9/29

12:15 pm-9:05 pm

2 stops10h 50m

$518

LondonIaşi

LCY - IAS

LCYIAS

London City

Thu 12/18

7:45 am-7:25 pm

2 stops9h 40m

Iasi

Thu 1/1

9:25 am-5:20 pm

2 stops9h 55m

$549

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 9/22

9:55 am-7:35 pm

2 stops7h 40m

Iasi

Wed 10/1

9:15 am-5:35 pm

2 stops10h 20m

$587

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 9/22

10:25 pm-2:00 pm

2 stops13h 35m

Iasi

Wed 10/1

5:25 am-3:05 pm

2 stops11h 40m

$979

Flights are sorted by cheapest round-trip 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 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 and Iaşi?

What is the cheapest month to fly to Iaşi?

In general, January is the cheapest month to fly from London to Iaşi. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $88. If you are unable to visit Iaşi during the month of January, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around $97.

What is the cheapest day to depart on your flight to Iaşi?

The cheapest day to depart on your flight to Iaşi is on a Friday when prices can be found for as low as $166. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Iaşi is Monday, with ticket prices averaging around $450.

What is the cheapest time of day to depart on your flight to Iaşi?

According to our data, the cheapest time of day to fly to Iaşi is in the evening. momondo users have found flights departing from London to Iaşi in the evening for as low as $171. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Iaşi is in the morning when prices are around $243.

What is the cheapest London to Iasi flight route?

Fly from London Luton to Iasi for the best London - Iasi flight prices

How far in advance should I book a flight to Iaşi?

You are more likely to see cheaper flights to Iaşi from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Iaşi for around $342 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Iaşi from London for as low as $273 on momondo.

What cabin class options are available on London to Iasi flights?

There is only 1 cabin class available to choose from on London to Iasi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Iaşi flights?

No. A direct flight is the cheapest option for a flight between London to Iaşi.

How have London to Iaşi flight prices changed over time?

As of August 2025, prices for London to Iaşi flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from London to Iaşi

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

Cheap London to Iaşi (LON to IAS) flight deals and tips

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

Best Price Found

$146

Direct flights

None
The best one-way flight to Iaşi from London in the past 72 hours is $146. The best round-trip flight deal from London to Iaşi found on momondo in the last 72 hours is $171.
There are no direct flights from London to Iaşi. There are no popular flight routes from London to Iaşi.
Search flight deals

  • How far is London to Iasi by plane?

    The distance between London and Iasi is about 1274.5 mi. By plane, this route typically takes 6h 50m.

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London 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 plane model from London to Iaşi?

  • What is the most popular airline from London to Iaşi?

Best airlines flying from London to Iaşi

Compare and see reviews for airlines that fly from London to Iaşi with momondo
Airline
Rating
Free Cancellation
Price
Wizz AirPriceFrom $100Free CancellationRating
6.7
374 reviews
Search Wizz Air flights

  • Wizz Air Flights From London to Iaşi

    The lowest priced Wizz Air flight from London to Iaşi from the last 72 hours was $100. Generally, Wizz Air has 14 flights on this route every week with an average price of $171. Wizz Air is rated 6.7/10 by our users.

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. All flights to Iaşi from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for London to Iaşi flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Iaşi right now. Can momondo alert me if prices change?

Price alerts on flights to Iaşi from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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