$323+ Cheap flights from Boston (BOS) to Iaşi (IAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — IAS
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Iaşi with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Iaşi
Cheapest
Best
One-way
Cheapest flights from Boston to IaşiExplore the most affordable flight options available from Boston to Iaşi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from Boston to Iaşi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:10 pm -
2 stops30h 15m
Sat 12/2610:05 pm -
1 stop22h 50m
Deal found 9/18![Multiple Airlines logo]()
$928
Best flights from Boston to IaşiDiscover carefully curated flight deals from Boston to Iaşi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Boston to Iaşi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:10 pm -
2 stops30h 15m
Sat 12/2610:05 pm -
1 stop22h 50m
Deal found 9/18![Multiple Airlines logo]()
$928
One-way flights from Boston to IaşiSearch for one-way flight options from Boston to Iaşi. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Boston to Iaşi. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:45 pm -
2 stops18h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:50 pm -
3 stops37h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:50 pm -
3 stops42h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:50 pm -
3 stops40h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/278:50 pm -
2 stops30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:50 pm -
3 stops31h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:50 pm -
2 stops31h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$451
Find flight deals from Boston to Iaşi
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $928 (Kiwi.com) |
One-way from | $323 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 7,457,451 searches. Data last updated September 22, 2026.
Use the filters below to find and compare flights from Boston to Iaşi that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonIaşi
BOS Boston Logan Intl - IAS Iasi
BOSIAS
Boston Logan Intl
Mon 9/28
4:45 pm-5:45 pm
2 stops18h 00m
Iasi
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$323
BostonIaşi
BOS Boston Logan Intl - IAS Iasi
BOSIAS
Boston Logan Intl
Tue 9/29
8:50 pm-11:10 am
2 stops31h 20m
Iasi
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$414
BostonIaşi
BOS Boston Logan Intl - IAS Iasi
BOSIAS
Boston Logan Intl
Sun 9/27
9:20 pm-11:10 pm
1 stop18h 50m
Iasi
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$574
Quickest round-trip
BostonIaşi
BOS Boston Logan Intl - IAS Iasi
BOSIAS
Boston Logan Intl
Mon 9/28
5:10 pm-3:20 pm
1 stop15h 10m
Iasi
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$652
BostonIaşi
BOS Boston Logan Intl - IAS Iasi
BOSIAS
Boston Logan Intl
Thu 10/1
5:10 pm-3:20 pm
1 stop15h 10m
Iasi
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$727
BostonIaşi
BOS Boston Logan Intl - IAS Iasi
BOSIAS
Boston Logan Intl
Sat 12/5
10:10 pm-11:25 am
2 stops30h 15m
Iasi
Sat 12/26
10:05 pm-1:55 pm
1 stop22h 50m
$928
Sorted by cheapest first
Compare providers for flights from Boston to Iaşi
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Iaşi in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Iaşi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Iaşi flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Iaşi flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Iaşi flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Iaşi flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boston to Iaşi
Have a flexible travel schedule? Discover the best time to fly to Iaşi from Boston with our price prediction graph.
BOS-IAS
Estimated round-trip 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 Boston to Iaşi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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