Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to Iaşi from $187

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 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London to Iaşi

Cheap round-trip flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
6:00 am - 3:20 pm
LHR
-
IAS
7h 20m
1 stop
Austrian Airlines Logo
4:00 pm - 9:40 pm
IAS
-
LHR
7h 40m
1 stop
$308Austrian Airlines
Sun, May 3 - Sun, May 10
Austrian Airlines Logo
3:05 pm - 1:20 am
LHR
-
IAS
8h 15m
1 stop
Austrian Airlines Logo
5:20 am - 11:25 am
IAS
-
LHR
8h 05m
1 stop
$309Austrian Airlines
Thu, May 7 - Mon, May 11
Austrian Airlines Logo
7:30 pm - 3:20 pm
LHR
-
IAS
17h 50m
1 stop
Austrian Airlines Logo
4:00 pm - 9:40 pm
IAS
-
LHR
7h 40m
1 stop
$310Austrian Airlines
Mon, Apr 20 - Tue, Apr 28
Austrian Airlines Logo
7:30 pm - 3:20 pm
LHR
-
IAS
17h 50m
1 stop
Austrian Airlines Logo
4:00 pm - 11:25 am
IAS
-
LHR
21h 25m
1 stop
$311Austrian Airlines
Mon, Apr 27 - Tue, May 5
Austrian Airlines Logo
6:00 am - 3:20 pm
LHR
-
IAS
7h 20m
1 stop
Austrian Airlines Logo
4:00 pm - 9:40 pm
IAS
-
LHR
7h 40m
1 stop
$330Austrian Airlines
Sat, May 9 - Sat, May 16
Austrian Airlines Logo
7:30 pm - 3:20 pm
LHR
-
IAS
17h 50m
1 stop
Austrian Airlines Logo
4:00 pm - 8:20 am
IAS
-
LHR
18h 20m
1 stop
$331Austrian Airlines
Fri, Sep 4 - Sun, Sep 13
Multiple Airlines Logo
1:35 pm - 1:20 am
LHR
-
IAS
9h 45m
2 stops
Multiple Airlines Logo
4:00 pm - 8:20 am
IAS
-
LHR
18h 20m
1 stop
$341Multiple Airlines
Tue, Apr 28 - Tue, May 5
KLM Logo
5:50 pm - 8:50 am
LCY
-
IAS
13h 00m
2 stops
KLM Logo
2:15 pm - 7:55 am
IAS
-
LCY
19h 40m
2 stops
$446KLM
Mon, Sep 21 - Fri, Sep 25
KLM Logo
5:10 pm - 8:50 am
LCY
-
IAS
13h 40m
2 stops
KLM Logo
9:15 am - 6:30 pm
IAS
-
LCY
11h 15m
2 stops
$501KLM
Mon, May 11 - Tue, May 19
KLM Logo
5:50 pm - 8:30 am
LCY
-
IAS
12h 40m
2 stops
KLM Logo
9:15 am - 6:30 pm
IAS
-
LCY
11h 15m
2 stops
$585KLM
Tue, Jun 2 - Tue, Sep 1

KLM flights from London to Iaşi

Our best KLM deals on London to Iaşi flight tickets
KLM
Sep 21
LCY5:50 pmLondon City
13h 00m
2 stops
IAS8:50 amIasi
Sep 25
IAS2:15 pmIasi
19h 40m
2 stops
LCY7:55 amLondon City
$446
KLM
May 11
LCY5:10 pmLondon City
13h 40m
2 stops
IAS8:50 amIasi
May 19
IAS9:15 amIasi
11h 15m
2 stops
LCY6:30 pmLondon City
$501
KLM
May 29
LHR6:30 amLondon Heathrow
15h 00m
2 stops
IAS11:30 pmIasi
Jun 1
IAS8:55 amIasi
10h 40m
2 stops
LHR5:35 pmLondon Heathrow
$540

Lufthansa flights from London to Iaşi

Our best Lufthansa deals on London to Iaşi flight tickets
Lufthansa
May 14
LHR6:55 amLondon Heathrow
16h 25m
2 stops
IAS1:20 amIasi
May 17
IAS4:00 pmIasi
25h 40m
2 stops
LHR3:40 pmLondon Heathrow
$374
Lufthansa
May 14
LHR7:25 amLondon Heathrow
15h 55m
2 stops
IAS1:20 amIasi
May 17
IAS4:00 pmIasi
27h 05m
2 stops
LHR5:05 pmLondon Heathrow
$375
Lufthansa
May 7
LHR6:55 amLondon Heathrow
16h 25m
2 stops
IAS1:20 amIasi
May 11
IAS4:00 pmIasi
6h 45m
2 stops
LHR8:45 pmLondon Heathrow
$376

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 April 3, 2026.
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

Cheapest round-trip
Quickest round-trip

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sun 5/3

6:00 am-3:20 pm

1 stop7h 20m

Iasi

Sun 5/10

4:00 pm-9:40 pm

1 stop7h 40m

$308

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Thu 5/7

3:05 pm-1:20 am

1 stop8h 15m

Iasi

Mon 5/11

5:20 am-11:25 am

1 stop8h 05m

$309

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 4/20

7:30 pm-3:20 pm

1 stop17h 50m

Iasi

Tue 4/28

4:00 pm-9:40 pm

1 stop7h 40m

$310

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Mon 4/27

7:30 pm-3:20 pm

1 stop17h 50m

Iasi

Tue 5/5

4:00 pm-11:25 am

1 stop21h 25m

$311

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Sat 5/9

6:00 am-3:20 pm

1 stop7h 20m

Iasi

Sat 5/16

4:00 pm-9:40 pm

1 stop7h 40m

$330

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Fri 9/4

7:30 pm-3:20 pm

1 stop17h 50m

Iasi

Sun 9/13

4:00 pm-8:20 am

1 stop18h 20m

$331

LondonIaşi

LHR - IAS

LHRIAS

London Heathrow

Tue 4/28

1:35 pm-1:20 am

2 stops9h 45m

Iasi

Tue 5/5

4:00 pm-8:20 am

1 stop18h 20m

$341

LondonIaşi

LCY - IAS

LCYIAS

London City

Mon 9/21

5:50 pm-8:50 am

2 stops13h 00m

Iasi

Fri 9/25

2:15 pm-7:55 am

2 stops19h 40m

$446

LondonIaşi

LCY - IAS

LCYIAS

London City

Mon 5/11

5:10 pm-8:50 am

2 stops13h 40m

Iasi

Tue 5/19

9:15 am-6:30 pm

2 stops11h 15m

$501

LondonIaşi

LCY - IAS

LCYIAS

London City

Tue 6/2

5:50 pm-8:30 am

2 stops12h 40m

Iasi

Tue 9/1

9:15 am-6:30 pm

2 stops11h 15m

$585

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $121. If you are unable to visit Iaşi during the month of January, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around $144.

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 Thursday when prices can be found for as low as $157. 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 Tuesday, with ticket prices averaging around $264.

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 $225.

What is the cheapest London to Iasi flight route?

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

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 April 2026, prices for London to Iaşi flights are approximately 10% more expensive 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

$62

Fastest flight time

7h 20m

Direct flights

None
The best one-way flight to Iaşi from London in the past 72 hours is $62. The best round-trip flight deal from London to Iaşi found on momondo in the last 72 hours is $139.
The fastest flight from London to Iaşi takes 7h 20m
There are no direct flights from London to Iaşi. There are no popular flight routes from London to Iaşi.
Search flight deals

Frequently asked questions about flying from London to Iaşi

  • 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 7h 20m.

  • 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
6.8
418 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 7 flights on this route every week with an average price of $166. Wizz Air is rated 6.8/10 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.

An easier way to manage your Iaşi trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 5/3
Sun 5/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Romania