What is the cheapest airline that flies from Chicago to Iasi?

Austrian Airlines is the most popular carrier operating from Chicago to Iasi

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

Prices for flights from Chicago to Iasi Airport refresh daily.

How many operators does momondo search for flights from Chicago to Iasi Airport?

The number of operators available for flights from Chicago to Iasi Airport is 1 as of July 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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.

$322 Cheap Flights from Chicago to Iaşi in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Iaşi

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:20 pm - 1:20 am

ORD

IAS

25h 00m

1 stop

4:00 pm - 1:20 pm

IAS

ORD

29h 20m

1 stop

$994Austrian Airlines

Mon, Aug 24 - Wed, Sep 2

9:40 pm - 1:20 am

ORD

IAS

19h 40m

2 stops

5:20 am - 7:55 pm

IAS

ORD

22h 35m

2 stops

$996Lufthansa

Mon, Aug 24 - Wed, Sep 2

4:20 pm - 3:20 pm

ORD

IAS

15h 00m

1 stop

5:20 am - 12:55 pm

IAS

ORD

15h 35m

2 stops

$999Multiple Airlines

Mon, Aug 24 - Wed, Sep 2

3:35 pm - 1:20 am

ORD

IAS

25h 45m

2 stops

5:20 am - 7:55 pm

IAS

ORD

22h 35m

2 stops

$1,017Lufthansa

Wed, Aug 19 - Wed, Aug 26

8:40 am - 10:30 pm

ORD

IAS

29h 50m

3 stops

7:00 pm - 12:40 pm

IAS

ORD

25h 40m

2 stops

$1,099Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

4:40 pm - 8:35 pm

ORD

IAS

19h 55m

2 stops

3:55 pm - 3:10 pm

IAS

ORD

31h 15m

3 stops

$1,102Multiple Airlines

Mon, Aug 24 - Wed, Sep 2

9:40 pm - 1:20 am

ORD

IAS

19h 40m

2 stops

4:00 pm - 12:55 pm

IAS

ORD

28h 55m

2 stops

$1,126Lufthansa

Sat, Aug 22 - Sat, Aug 29

7:25 am - 5:45 pm

ORD

IAS

26h 20m

2 stops

7:00 pm - 9:25 pm

IAS

ORD

34h 25m

2 stops

$1,157Multiple Airlines

Fri, Sep 4 - Fri, Sep 11

8:40 am - 10:30 pm

ORD

IAS

29h 50m

3 stops

2:15 pm - 3:10 pm

IAS

ORD

32h 55m

3 stops

$1,163Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

9:50 am - 5:45 pm

ORD

IAS

23h 55m

3 stops

7:00 pm - 9:25 pm

IAS

ORD

34h 25m

2 stops

$1,174Multiple Airlines

Fri, Sep 4 - Fri, Sep 11

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Lufthansa flights from Chicago to Iaşi

Our best Lufthansa deals on Chicago to Iaşi flight tickets

Lufthansa

Aug 24

ORD9:40 pmChicago O'Hare Intl

19h 40m

2 stops

IAS1:20 amIasi

Sep 2

IAS5:20 amIasi

22h 35m

2 stops

ORD7:55 pmChicago O'Hare Intl

$996

Lufthansa

Aug 19

ORD3:35 pmChicago O'Hare Intl

25h 45m

2 stops

IAS1:20 amIasi

Aug 26

IAS5:20 amIasi

22h 35m

2 stops

ORD7:55 pmChicago O'Hare Intl

$1,017

Lufthansa

Aug 22

ORD9:40 pmChicago O'Hare Intl

19h 40m

2 stops

IAS1:20 amIasi

Aug 29

IAS4:00 pmIasi

28h 55m

2 stops

ORD12:55 pmChicago O'Hare Intl

$1,126

Austrian Airlines flights from Chicago to Iaşi

Our best Austrian Airlines deals on Chicago to Iaşi flight tickets

Austrian Airlines

Aug 24

ORD4:20 pmChicago O'Hare Intl

25h 00m

1 stop

IAS1:20 amIasi

Sep 2

IAS4:00 pmIasi

29h 20m

1 stop

ORD1:20 pmChicago O'Hare Intl

$994

Austrian Airlines

Jul 28

ORD6:00 pmChicago O'Hare Intl

47h 20m

2 stops

IAS1:20 amIasi

Aug 14

IAS5:20 amIasi

14h 40m

2 stops

ORD12:00 pmChicago O'Hare Intl

$1,435

Austrian Airlines

Jul 26

ORD9:40 pmChicago O'Hare Intl

43h 40m

2 stops

IAS1:20 amIasi

Aug 13

IAS4:00 pmIasi

28h 00m

2 stops

ORD12:00 pmChicago O'Hare Intl

$1,458

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Mon 8/24

4:20 pm-1:20 am

1 stop25h 00m

Iasi

Wed 9/2

4:00 pm-1:20 pm

1 stop29h 20m

$994

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Mon 8/24

9:40 pm-1:20 am

2 stops19h 40m

Iasi

Wed 9/2

5:20 am-7:55 pm

2 stops22h 35m

$996

Quickest round-trip

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Mon 8/24

4:20 pm-3:20 pm

1 stop15h 00m

Iasi

Wed 9/2

5:20 am-12:55 pm

2 stops15h 35m

$999

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 8/19

3:35 pm-1:20 am

2 stops25h 45m

Iasi

Wed 8/26

5:20 am-7:55 pm

2 stops22h 35m

$1,017

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 8/19

8:40 am-10:30 pm

3 stops29h 50m

Iasi

Wed 8/26

7:00 pm-12:40 pm

2 stops25h 40m

$1,099

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Mon 8/24

4:40 pm-8:35 pm

2 stops19h 55m

Iasi

Wed 9/2

3:55 pm-3:10 pm

3 stops31h 15m

$1,102

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Sat 8/22

9:40 pm-1:20 am

2 stops19h 40m

Iasi

Sat 8/29

4:00 pm-12:55 pm

2 stops28h 55m

$1,126

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Fri 9/4

7:25 am-5:45 pm

2 stops26h 20m

Iasi

Fri 9/11

7:00 pm-9:25 pm

2 stops34h 25m

$1,157

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 8/19

8:40 am-10:30 pm

3 stops29h 50m

Iasi

Wed 8/26

2:15 pm-3:10 pm

3 stops32h 55m

$1,163

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Fri 9/4

9:50 am-5:45 pm

3 stops23h 55m

Iasi

Fri 9/11

7:00 pm-9:25 pm

2 stops34h 25m

$1,174

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago 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

Prices

Airlines

What is the cheapest month to fly to Iaşi?

In general, October is the cheapest month to fly from Chicago to Iaşi. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Iaşi during the month of October, then departing from Chicago during the month February is also very affordable. Most momondo users find prices during this month for around $0.

When to book flights from Chicago to Iaşi

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

Estimated round-trip price

Cheap Chicago to Iaşi (CHI to IAS) flight deals and tips

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

Fastest flight time	19h 40m
Direct flights	None

The fastest flight from Chicago to Iaşi takes 19h 40m

There are no direct flights from Chicago to Iaşi. There are no popular flight routes from Chicago to Iaşi.

Search flight deals

Frequently asked questions about flying from Chicago to Iaşi

How far is Chicago to Iasi by plane?
The distance between Chicago and Iasi is about 5117.1 mi. A reasonable flight in good conditions will take 19h 40m.
When did momondo last update prices for flights from Chicago to Iasi Airport?
Prices for flights from Chicago to Iasi Airport refresh daily.
How many operators does momondo search for flights from Chicago to Iasi Airport?
The number of operators available for flights from Chicago to Iasi Airport is 1 as of July 2026.
How old do you have to be to fly from Chicago to Iasi Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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 airline from Chicago to Iaşi?
Based on momondo bookings for flights between Chicago and Iaşi, the leading airline is Austrian Airlines, making up 100% of the total bookings.

Best airlines flying from Chicago to Iaşi

Compare and see reviews for airlines that fly from Chicago to Iaşi with momondo

Airline	Rating	Free Cancellation	Price
Austrian Airlines	PriceFrom $608	Free Cancellation	Rating 7.6 950 reviews		Search Austrian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Iaşi?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Iaşi for you.

Can I find flights from Chicago to Iaşi with flexible booking policies on momondo?

momondo does allow users to show only those flights to Iaşi from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Iaşi.

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

Yes. momondo can track prices for Chicago to Iaşi flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.