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Cheap flights from Boston to Sibiu from $409

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Sibiu departing on 4/15. 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

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Find the cheapest flights from Boston to Sibiu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:30 am - 5:30 pm
BOS
-
SBZ
29h 00m
2 stops
Multiple Airlines Logo
1:40 pm - 6:07 pm
SBZ
-
BOS
35h 27m
2 stops
$409Multiple Airlines
Wed, Apr 15 - Wed, May 27
Multiple Airlines Logo
5:30 am - 5:30 pm
BOS
-
SBZ
29h 00m
2 stops
Multiple Airlines Logo
6:15 am - 5:40 pm
SBZ
-
BOS
18h 25m
1 stop
$476Multiple Airlines
Wed, Apr 15 - Wed, May 27
Multiple Airlines Logo
8:05 pm - 1:20 pm
BOS
-
SBZ
10h 15m
1 stop
Multiple Airlines Logo
1:55 pm - 9:56 am
SBZ
-
BOS
27h 01m
2 stops
$515Multiple Airlines
Thu, Apr 9 - Tue, Apr 21
Multiple Airlines Logo
5:45 pm - 1:05 am
BOS
-
SBZ
24h 20m
2 stops
Multiple Airlines Logo
1:55 pm - 9:56 am
SBZ
-
BOS
27h 01m
2 stops
$555Multiple Airlines
Thu, Apr 9 - Tue, Apr 21
Multiple Airlines Logo
5:45 pm - 1:05 am
BOS
-
SBZ
24h 20m
2 stops
Multiple Airlines Logo
1:55 pm - 9:56 am
SBZ
-
BOS
27h 01m
2 stops
$556Multiple Airlines
Thu, Apr 9 - Tue, Apr 21
Multiple Airlines Logo
8:05 pm - 1:20 pm
BOS
-
SBZ
10h 15m
1 stop
Multiple Airlines Logo
12:05 pm - 9:49 am
SBZ
-
BOS
52h 44m
2 stops
$561Multiple Airlines
Thu, Apr 9 - Sun, Apr 19
Multiple Airlines Logo
10:45 am - 1:05 am
BOS
-
SBZ
31h 20m
2 stops
Multiple Airlines Logo
6:15 am - 5:40 pm
SBZ
-
BOS
18h 25m
1 stop
$562Multiple Airlines
Tue, Apr 14 - Tue, May 26
Lufthansa Logo
8:05 pm - 1:20 pm
BOS
-
SBZ
10h 15m
1 stop
Lufthansa Logo
6:15 am - 5:40 pm
SBZ
-
BOS
18h 25m
1 stop
$563Lufthansa
Tue, Apr 14 - Tue, May 26
Multiple Airlines Logo
6:15 am - 1:05 am
BOS
-
SBZ
35h 50m
2 stops
Multiple Airlines Logo
6:05 pm - 12:11 pm
SBZ
-
BOS
49h 06m
2 stops
$572Multiple Airlines
Thu, Apr 9 - Sun, Apr 19
Lufthansa Logo
8:05 pm - 5:30 pm
BOS
-
SBZ
14h 25m
1 stop
Lufthansa Logo
6:15 am - 5:40 pm
SBZ
-
BOS
18h 25m
1 stop
$586Lufthansa
Wed, Apr 15 - Wed, May 27

United Airlines flights from Boston to Sibiu

Our best United Airlines deals on Boston to Sibiu flight tickets
United Airlines
Mar 4
BOS8:40 pmBoston Logan Intl
14h 35m
1 stop
SBZ6:15 pmSibiu
Mar 8
SBZ6:00 amSibiu
34h 02m
2 stops
BOS9:02 amBoston Logan Intl
$598
United Airlines
Mar 4
BOS8:40 pmBoston Logan Intl
14h 35m
1 stop
SBZ6:15 pmSibiu
Mar 8
SBZ6:00 amSibiu
19h 36m
2 stops
BOS6:36 pmBoston Logan Intl
$601
United Airlines
Mar 4
BOS6:00 amBoston Logan Intl
29h 15m
2 stops
SBZ6:15 pmSibiu
Mar 8
SBZ6:00 amSibiu
36h 12m
2 stops
BOS11:12 amBoston Logan Intl
$603

Lufthansa flights from Boston to Sibiu

Our best Lufthansa deals on Boston to Sibiu flight tickets
Lufthansa
Apr 14
BOS8:05 pmBoston Logan Intl
10h 15m
1 stop
SBZ1:20 pmSibiu
May 26
SBZ6:15 amSibiu
18h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$563
Lufthansa
Apr 15
BOS8:05 pmBoston Logan Intl
14h 25m
1 stop
SBZ5:30 pmSibiu
May 27
SBZ6:15 amSibiu
18h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$586
Lufthansa
Apr 9
BOS8:05 pmBoston Logan Intl
10h 15m
1 stop
SBZ1:20 pmSibiu
Apr 21
SBZ6:15 amSibiu
18h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$588

momondo 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, momondo users made 832,500 searches. Data last updated February 6, 2026.
Use the filters below to find and compare flights from Boston to Sibiu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Wed 4/15

5:30 am-5:30 pm

2 stops29h 00m

Sibiu

Wed 5/27

1:40 pm-6:07 pm

2 stops35h 27m

$409

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Wed 4/15

5:30 am-5:30 pm

2 stops29h 00m

Sibiu

Wed 5/27

6:15 am-5:40 pm

1 stop18h 25m

$476

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Thu 4/9

8:05 pm-1:20 pm

1 stop10h 15m

Sibiu

Tue 4/21

1:55 pm-9:56 am

2 stops27h 01m

$515

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Thu 4/9

5:45 pm-1:05 am

2 stops24h 20m

Sibiu

Tue 4/21

1:55 pm-9:56 am

2 stops27h 01m

$555

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Thu 4/9

5:45 pm-1:05 am

2 stops24h 20m

Sibiu

Tue 4/21

1:55 pm-9:56 am

2 stops27h 01m

$556

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Thu 4/9

8:05 pm-1:20 pm

1 stop10h 15m

Sibiu

Sun 4/19

12:05 pm-9:49 am

2 stops52h 44m

$561

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Tue 4/14

10:45 am-1:05 am

2 stops31h 20m

Sibiu

Tue 5/26

6:15 am-5:40 pm

1 stop18h 25m

$562

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Tue 4/14

8:05 pm-1:20 pm

1 stop10h 15m

Sibiu

Tue 5/26

6:15 am-5:40 pm

1 stop18h 25m

$563

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Thu 4/9

6:15 am-1:05 am

2 stops35h 50m

Sibiu

Sun 4/19

6:05 pm-12:11 pm

2 stops49h 06m

$572

BostonSibiu

BOS - SBZ

BOSSBZ

Boston Logan Intl

Wed 4/15

8:05 pm-5:30 pm

1 stop14h 25m

Sibiu

Wed 5/27

6:15 am-5:40 pm

1 stop18h 25m

$586

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Sibiu from

How to get the cheapest flight ticket from Boston to Sibiu

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 airlines fly to Sibiu?

Lufthansa, Turkish Airlines and SWISS are the top three most popular airlines that fly to Sibiu from Boston according to our data. Lufthansa is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Sibiu. Keep in mind that there are 3 different airlines that fly to Sibiu on a routine basis, so you have a few additional options to choose from.

When to book flights from Boston to Sibiu

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Sibiu according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Sibiu (BOS to SBZ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Sibiu

Fastest flight time

14h 35m

Direct flights

None
The fastest flight from Boston to Sibiu takes 14h 35m
There are no direct flights from Boston to Sibiu. There are no popular flight routes from Boston to Sibiu.
Search flight deals

  • How far is Boston Logan Intl to Sibiu by plane?

    There are 4428.1 mi between Boston Logan Intl and Sibiu. Typically, this will take 14h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Sibiu Airport?

    Prices for flights from Boston Logan Intl Airport to Sibiu Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Sibiu Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Sibiu 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 Boston Logan Intl Airport to Sibiu Airport.

  • What documentation or ID do you need to fly to Sibiu Airport?

    The travel and health documents you'll need for your trip to Sibiu 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 Sibiu 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 Boston to Sibiu?

Best airlines flying from Boston to Sibiu

Compare and see reviews for airlines that fly from Boston to Sibiu with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $585Free CancellationRating
6.8
7,762 reviews
Search Lufthansa flights

Traveling to a place near Sibiu?

Book flights to Sibiu if you plan to visit one of these locations
Alba Iulia

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Sibiu?

It is quick and easy to find Boston to Sibiu flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sibiu that suits you.

Can I find flights from Boston to Sibiu with flexible booking policies on momondo?

Yes. All flights to Sibiu from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Boston to Sibiu?

Once you have performed a search for Boston to Sibiu 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 Boston to Sibiu right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boston to Sibiu 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.

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