How long is the flight from Boston to Sibiu?

United Airlines can get you from Boston to Sibiu in just under 14h 35m. Your travel time can differ by up to . The distance between Boston and Sibiu is about 4424 mi.

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.

In terms of precipitation, rainfall in Sibiu ranges from 0.8 - 4.3 inches per month. June is typically the wettest month, when rainfall can reach 4.3 in. January is typically the driest time to visit Sibiu when rainfall is around 0.8 in.

If weather is an important factor for your trip to Sibiu, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What is the cheapest time of day to fly from BOS to SBZ?

When flying from Boston to Sibiu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Boston-Sibiu flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Sibiu flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Sibiu flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Boston-Sibiu flights, Cheapflights users trust eDreams the most. eDreams 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-Sibiu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$422+ Flights from Boston to Sibiu

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Cheap 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 diciembre 27, 2025.

mar. 12/307:44 pmBOS - SBZ

2 stops39h 31mLufthansa

sáb. 1/177:00 pmSBZ - BOS

1 stop30h 35mLufthansa

Deal found 12/27

$878

Best flights from Boston to Sibiu
Discover carefully curated flight deals from Boston to Sibiu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 27, 2025.

vie. 1/236:55 pmBOS - SBZ

2 stops35h 50mMultiple Airlines

vie. 2/66:00 amSBZ - BOS

2 stops23h 37mMultiple Airlines

Deal found 12/25

$422

lun. 1/268:40 pmBOS - SBZ

1 stop14h 35mUnited Airlines

vie. 2/66:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$539

dom. 1/258:40 pmBOS - SBZ

1 stop10h 05mUnited Airlines

jue. 2/56:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$539

mar. 1/206:00 amBOS - SBZ

2 stops24h 45mUnited Airlines

jue. 2/56:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$543

mié. 1/219:30 amBOS - SBZ

2 stops25h 45mUnited Airlines

vie. 2/66:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$543

mié. 1/211:31 pmBOS - SBZ

2 stops21h 44mUnited Airlines

jue. 2/56:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$543

dom. 1/258:40 pmBOS - SBZ

1 stop10h 05mUnited Airlines

mié. 2/42:30 pmSBZ - BOS

2 stops16h 19mUnited Airlines

Deal found 12/27

$549

lun. 1/268:40 pmBOS - SBZ

1 stop14h 35mUnited Airlines

mié. 2/42:30 pmSBZ - BOS

2 stops16h 19mUnited Airlines

Deal found 12/27

$549

mar. 1/2012:45 pmBOS - SBZ

2 stops18h 00mUnited Airlines

vie. 2/66:00 amSBZ - BOS

2 stops23h 37mUnited Airlines

Deal found 12/27

$550

mié. 1/2112:45 pmBOS - SBZ

2 stops22h 30mUnited Airlines

mié. 2/42:30 pmSBZ - BOS

2 stops16h 19mUnited Airlines

Deal found 12/27

$553

Last-minute flights from Boston to Sibiu
Discover last-minute flight deals from Boston to Sibiu. Data last updated diciembre 27, 2025 and is based on user searches.

mar. 1/206:00 amBOS - SBZ

2 stops24h 45mUnited Airlines

jue. 2/56:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$543

mar. 1/2012:45 pmBOS - SBZ

2 stops18h 00mUnited Airlines

vie. 2/66:00 amSBZ - BOS

2 stops23h 37mUnited Airlines

Deal found 12/27

$550

mar. 1/206:00 amBOS - SBZ

2 stops24h 45mUnited Airlines

mié. 2/42:30 pmSBZ - BOS

2 stops14h 22mUnited Airlines

Deal found 12/27

$553

mié. 1/218:40 pmBOS - SBZ

1 stop14h 35mLufthansa

vie. 2/66:00 amSBZ - BOS

1 stop19h 35mLufthansa

Deal found 12/27

$544

mié. 1/218:40 pmBOS - SBZ

1 stop14h 35mLufthansa

mar. 2/37:00 pmSBZ - BOS

1 stop30h 35mLufthansa

Deal found 12/27

$554

vie. 1/236:55 pmBOS - SBZ

2 stops35h 50mMultiple Airlines

vie. 2/66:00 amSBZ - BOS

2 stops23h 37mMultiple Airlines

Deal found 12/25

$422

sáb. 1/246:55 pmBOS - SBZ

2 stops35h 50mUnited Airlines

jue. 2/56:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$545

dom. 1/258:40 pmBOS - SBZ

1 stop10h 05mUnited Airlines

vie. 2/66:00 amSBZ - BOS

1 stop19h 35mUnited Airlines

Deal found 12/27

$539

dom. 1/258:40 pmBOS - SBZ

1 stop10h 05mUnited Airlines

mié. 2/42:30 pmSBZ - BOS

2 stops16h 19mUnited Airlines

Deal found 12/27

$549

Find flight deals from Boston to Sibiu

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$422 (Mytrip)

Provider with most accurate pricing for Boston Logan Intl-Sibiu flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-Sibiu flights.

Search Deals

From Boston Logan Intl to Sibiu

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

vie. 1/23

6:55 pm-1:45 pm

2 stops35h 50m

Sibiu

vie. 2/6

6:00 am-10:37 pm

2 stops23h 37m

$422

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

lun. 1/26

8:40 pm-6:15 pm

1 stop14h 35m

Sibiu

vie. 2/6

6:00 am-6:35 pm

1 stop19h 35m

$539

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

dom. 1/25

8:40 pm-1:45 pm

1 stop10h 05m

Sibiu

jue. 2/5

6:00 am-6:35 pm

1 stop19h 35m

$539

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

mar. 1/20

6:00 am-1:45 pm

2 stops24h 45m

Sibiu

jue. 2/5

6:00 am-6:35 pm

1 stop19h 35m

$543

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

mié. 1/21

9:30 am-6:15 pm

2 stops25h 45m

Sibiu

vie. 2/6

6:00 am-6:35 pm

1 stop19h 35m

$543

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

mié. 1/21

1:31 pm-6:15 pm

2 stops21h 44m

Sibiu

jue. 2/5

6:00 am-6:35 pm

1 stop19h 35m

$543

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

dom. 1/25

8:40 pm-1:45 pm

1 stop10h 05m

Sibiu

mié. 2/4

2:30 pm-11:49 pm

2 stops16h 19m

$549

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

lun. 1/26

8:40 pm-6:15 pm

1 stop14h 35m

Sibiu

mié. 2/4

2:30 pm-11:49 pm

2 stops16h 19m

$549

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

mar. 1/20

12:45 pm-1:45 pm

2 stops18h 00m

Sibiu

vie. 2/6

6:00 am-10:37 pm

2 stops23h 37m

$550

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

mié. 1/21

12:45 pm-6:15 pm

2 stops22h 30m

Sibiu

mié. 2/4

2:30 pm-11:49 pm

2 stops16h 19m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Compare providers for flights from Boston to Sibiu

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Sibiu in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Boston-Sibiu flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Sibiu flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Sibiu flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Boston-Sibiu flights, Cheapflights users trust eDreams the most. eDreams 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-Sibiu 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 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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Sibiu

What is the cheapest month to book a flight from Boston to Sibiu?

Currently, November is the cheapest month in which you can book a flight from Boston to Sibiu (average of $387). Flying from Boston to Sibiu in June is currently the most expensive (average of $870). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Sibiu

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

7,653 reviews

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

7,653 reviews

Lufthansa

6.8

Okay

7,653 reviews

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

How long is the flight from Boston to Sibiu?
United Airlines can get you from Boston to Sibiu in just under 14h 35m. Your travel time can differ by up to . The distance between Boston and Sibiu is about 4424 mi.
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.
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.
What is the cheapest month to book a flight from Boston to Sibiu?
Currently, November is the cheapest month in which you can book a flight from Boston to Sibiu (average of $387). Flying from Boston to Sibiu in June is currently the most expensive (average of $870). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Boston to Sibiu

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Top airline flying from Boston to Sibiu

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$585	Average$806	FlexibilityNo cancel fee	On-time76%

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$422+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Sibiu with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boston to Sibiu

Cheapest flights from Boston to SibiuExplore 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 diciembre 27, 2025.

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 diciembre 27, 2025.

Find flight deals from Boston to Sibiu

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Sibiu that are best for you.

Compare providers for flights from Boston to Sibiu

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 Sibiu in December.

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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Sibiu

What is the cheapest month to book a flight from Boston to Sibiu?

Reviews of airlines servicing Sibiu

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.

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.

How long is the flight from Boston to Sibiu?

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

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

How can I find direct flights from Boston to Sibiu?

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

What is the cheapest month to book a flight from Boston to Sibiu?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Sibiu

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Boston to Sibiu

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Travel Smart

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 diciembre 27, 2025.