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Sibiu

$563+ Cheap flights from Boston (BOS) to Sibiu (SBZ)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SBZ
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Boston to Sibiu

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Sibiu (SBZ). 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 August 14, 2025.

Round-trip from

$563
(Gotogate)

Popular in

May

Cheapest in

August

Average price

$547
From Boston Logan Intl to Sibiu
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($266 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Boston to Sibiu

Cheapest flights from Boston to Sibiu
Explore the most affordable flight options available from Boston to Sibiu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Gotogate deal was found by Cheapflights users on 8/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:05 pmBOS - SBZ
1 stop10h 15mLufthansa
Mon 9/15:55 pmSBZ - BOS
1 stop30h 45mLufthansa
Deal found 8/13$563
This United deal was found by Cheapflights users on 8/13. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:45 amBOS - SBZ
2 stops22h 35mMultiple Airlines
Mon 9/15:55 pmSBZ - BOS
1 stop30h 45mMultiple Airlines
Deal found 8/13$570
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:05 amBOS - SBZ
2 stops22h 15mUnited Airlines
Mon 9/11:55 pmSBZ - BOS
2 stops36h 00mUnited Airlines
Deal found 8/13$576
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 8/228:05 pmBOS - SBZ
1 stop10h 15mLufthansa
Wed 9/36:05 amSBZ - BOS
1 stop18h 35mLufthansa
Deal found 8/12$590
This Ovago deal was found by Cheapflights users on 8/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/228:05 pmBOS - SBZ
1 stop10h 15mLufthansa
Mon 9/15:55 pmSBZ - BOS
1 stop30h 45mLufthansa
Deal found 8/12$620
This United deal was found by Cheapflights users on 8/12. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/225:50 pmBOS - SBZ
2 stops24h 05mMultiple Airlines
Wed 9/36:05 amSBZ - BOS
2 stops18h 41mMultiple Airlines
Deal found 8/12$666
This United deal was found by Cheapflights users on 8/12. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2210:00 pmBOS - SBZ
2 stops19h 55mMultiple Airlines
Mon 9/11:40 pmSBZ - BOS
2 stops33h 20mMultiple Airlines
Deal found 8/12$692

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Sibiu 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 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Boston to Sibiu that are best for you.

Fly from

Boston

Fly to

Sibiu

Route

Depart

Return

Price

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Mon 8/25

8:05 pm-1:20 pm

1 stop10h 15m

Sibiu

Mon 9/1

5:55 pm-5:40 pm

1 stop30h 45m

$563

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Mon 8/25

7:45 am-1:20 pm

2 stops22h 35m

Sibiu

Mon 9/1

5:55 pm-5:40 pm

1 stop30h 45m

$570

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Mon 8/25

8:05 am-1:20 pm

2 stops22h 15m

Sibiu

Mon 9/1

1:55 pm-6:55 pm

2 stops36h 00m

$576

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Thu 1/15

8:40 pm-1:40 pm

1 stop10h 00m

Sibiu

Mon 1/19

2:25 pm-8:20 pm

2 stops36h 55m

$605

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Thu 1/15

8:40 pm-1:40 pm

1 stop10h 00m

Sibiu

Mon 1/19

2:25 pm-6:35 pm

1 stop11h 10m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from Boston to Sibiu

Have a flexible travel schedule? Discover the best time to fly to Sibiu from Boston with our price prediction graph.
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.

Reviews of airlines servicing Sibiu

Get insights into the airlines that provide service to Sibiu. 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 Sibiu. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown Lufthansa from Boston to Sibiu. 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.
Lufthansa
6.8
Okay
7,317 reviews

Crew

7.6

Boarding

7.0

Food

6.3

Comfort

6.8

Entertainment

6.4

Overall

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
Lufthansa
6.8
Okay
7,317 reviews
Lufthansa
6.8
Okay
7,317 reviews

Crew

7.6

Boarding

7.0

Food

6.3

Comfort

6.8

Entertainment

6.4

Overall

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Related info for your journey

Find useful and relevant information for your journey from Boston to Sibiu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Boston to Sibiu round-trip?

    Currently priced at $585, Lufthansa will fly you from Boston to Sibiu and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Lufthansa is currently priced 43% below the average price you’ll pay for this route.

  • Can I find deals for flights from Boston to Sibiu that include hotel bookings?

    Yes. In addition to deals on Boston to Sibiu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Sibiu?

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

  • Can I find deals for business class flights from Boston to Sibiu?

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Boston to Sibiu

Discover the top airline that operate flights from Boston to Sibiu. 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 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$585Average$918FlexibilityNo cancel feeOn-time76%

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