BOS - SBZ

$528 Find Cheap Flights from Boston to Sibiu

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Sibiu departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sibiu

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sibiu, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sibiu, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$809
Austrian Airlines
Thu 10/15Mon 11/2
BOS - SBZ • 1 stop
Cheapest one-way
$528
Multiple Airlines
Wed 6/24
BOS - SBZ • 3 stops
Top airlines
Austrian Airlines
Cheapest • from $809 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Sibiu. You'll need at least 1 connection.
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We hope you love your trip to Sibiu!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Sibiu (BOS-SBZ)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Sibiu that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Sibiu

Thu, Oct 15 - Mon, Nov 2
Austrian Airlines Logo
5:10 pm - 12:55 pm
BOS
-
SBZ
12h 45m
1 stop
Austrian Airlines Logo
4:05 pm - 1:30 pm
SBZ
-
BOS
28h 25m
1 stop
$809Austrian Airlines
Thu, Oct 15 - Mon, Nov 2
Austrian Airlines Logo
5:10 pm - 12:55 pm
BOS
-
SBZ
12h 45m
1 stop
Austrian Airlines Logo
4:05 pm - 5:25 pm
SBZ
-
BOS
32h 20m
2 stops
$813Austrian Airlines
Thu, Oct 15 - Mon, Nov 2
United Airlines Logo
12:20 pm - 1:20 pm
BOS
-
SBZ
18h 00m
2 stops
United Airlines Logo
2:30 pm - 3:57 pm
SBZ
-
BOS
56h 27m
2 stops
$833United Airlines
Tue, Aug 11 - Wed, Aug 19
Multiple Airlines Logo
5:45 am - 12:55 pm
BOS
-
SBZ
24h 10m
2 stops
Multiple Airlines Logo
1:40 pm - 9:50 am
SBZ
-
BOS
51h 10m
2 stops
$966Multiple Airlines
Thu, Jun 11 - Thu, Jun 18
Austrian Airlines Logo
11:00 am - 12:55 pm
BOS
-
SBZ
18h 55m
2 stops
Austrian Airlines Logo
12:10 pm - 4:38 pm
SBZ
-
BOS
35h 28m
2 stops
$1,111Austrian Airlines
Tue, Aug 11 - Wed, Aug 19
Multiple Airlines Logo
5:10 pm - 12:55 pm
BOS
-
SBZ
12h 45m
1 stop
Multiple Airlines Logo
1:40 pm - 8:10 pm
SBZ
-
BOS
13h 30m
2 stops
$1,118Multiple Airlines
Thu, Jun 11 - Thu, Jun 18
Austrian Airlines Logo
11:00 am - 12:55 pm
BOS
-
SBZ
18h 55m
2 stops
Austrian Airlines Logo
12:10 pm - 1:50 pm
SBZ
-
BOS
32h 40m
1 stop
$1,200Austrian Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
5:50 am - 2:15 pm
BOS
-
SBZ
25h 25m
2 stops
Multiple Airlines Logo
12:10 pm - 8:55 pm
SBZ
-
BOS
39h 45m
3 stops
$1,201Multiple Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
10:45 am - 2:15 pm
BOS
-
SBZ
20h 30m
3 stops
Multiple Airlines Logo
12:10 pm - 8:55 pm
SBZ
-
BOS
39h 45m
3 stops
$1,215Multiple Airlines
Thu, Jun 11 - Thu, Jun 18
Austrian Airlines Logo
5:10 pm - 12:55 pm
BOS
-
SBZ
12h 45m
1 stop
Austrian Airlines Logo
12:10 pm - 1:50 pm
SBZ
-
BOS
32h 40m
1 stop
$1,257Austrian Airlines
Booking Insights

KAYAK's insights & trends for Boston to Sibiu flights

Get data-powered insights and trends into flights from Boston to Sibiu to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Sibiu?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boston to Sibiu were found on Austrian Airlines ($809) and United Airlines ($833).

Find deals

Good to know

Cheapest flight$528
Flight from Boston to Sibiu

When to book flights from Boston to Sibiu

Are your dates flexible? Find out the best times to travel from Boston to Sibiu based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Sibiu

  • What is the cheapest flight from Boston to Sibiu?

    In the last 3 days, the lowest price for a flight from Boston to Sibiu was $528 for a one-way ticket and $809 for a round-trip.

  • Do I need a passport to fly between Boston and Sibiu?

    Yes

  • Which aircraft models fly most regularly from Boston to Sibiu?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Sibiu?

    Star Alliance is the only airline alliance operating flights between Boston and Sibiu.

  • How does KAYAK find such low prices on flights from Boston to Sibiu?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Sibiu.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Sibiu?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sibiu from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Sibiu?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sibiu with an airline and back to Boston with another airline. Booking your flights between Boston and SBZ can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Sibiu?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sibiu from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boston to Sibiu

 
See real verified KAYAK customer reviews for airlines flying from Boston to Sibiu. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Sibiu? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
LufthansaOverall score based on 7962 reviews
7.0Boarding
6.4Entertainment
7.6Crew
6.8Comfort
6.3Food
Airline reviews

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

6.0 GoodDevasena, Apr 2026
ORD - FWA
Read more Lufthansa reviews

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

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

Information on your arrival and departure airports

Boston (BOS)
Sibiu (SBZ)