BOS - OTP

$253 Find Cheap Flights from Boston to Bucharest

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 Bucharest departing on 9/30. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Bucharest Otopeni Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Bucharest.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Bucharest.
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Cheap Flights from Boston to Bucharest (BOS-OTP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Bucharest 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 Bucharest

Sun, Sep 7 - Wed, Sep 17
 Logo
9:40 pm - 3:20 pmBOS-OTP
10h 40m1 stop
 Logo
6:35 am - 1:50 pmOTP-BOS
14h 15m1 stop
Tue, Sep 9 - Tue, Sep 16
SWISS Logo
5:05 pm - 3:20 pmBOS-OTP
15h 15m1 stop
SWISS Logo
6:30 am - 3:25 pmOTP-BOS
15h 55m1 stop
$383SWISS
Find Deal
Wed, Sep 10 - Wed, Sep 17
Lufthansa Logo
8:05 pm - 6:35 pmBOS-OTP
15h 30m1 stop
Lufthansa Logo
6:05 am - 5:40 pmOTP-BOS
18h 35m1 stop
$384Lufthansa
Find Deal
Wed, Sep 10 - Wed, Sep 17
Austrian Airlines Logo
5:10 pm - 12:25 pmBOS-OTP
12h 15m1 stop
Austrian Airlines Logo
6:35 am - 5:18 pmOTP-BOS
17h 43m2 stops
$396Austrian Airlines
Find Deal
Mon, Aug 18 - Wed, Sep 3
Air Canada Logo
5:50 am - 6:35 pmBOS-OTP
29h 45m2 stops
Air Canada Logo
6:00 am - 5:55 pmOTP-BOS
18h 55m2 stops
$403Air Canada
Find Deal
Wed, Sep 10 - Wed, Sep 17
Air Canada Logo
6:00 am - 6:35 pmBOS-OTP
29h 35m2 stops
Air Canada Logo
6:30 am - 9:30 amOTP-BOS
34h 00m2 stops
$419Air Canada
Find Deal
Wed, Sep 10 - Fri, Sep 19
Lufthansa Logo
8:05 pm - 6:35 pmBOS-OTP
15h 30m1 stop
Lufthansa Logo
6:05 am - 5:40 pmOTP-BOS
18h 35m1 stop
$422Lufthansa
Find Deal
Wed, Sep 10 - Fri, Sep 19
United Airlines Logo
8:05 pm - 6:35 pmBOS-OTP
15h 30m1 stop
United Airlines Logo
6:05 am - 5:40 pmOTP-BOS
18h 35m1 stop
$423United Airlines
Find Deal
Wed, Sep 10 - Fri, Sep 19
United Airlines Logo
8:05 pm - 6:35 pmBOS-OTP
15h 30m1 stop
United Airlines Logo
6:00 am - 9:25 pmOTP-BOS
22h 25m2 stops
$430United Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 19
Austrian Airlines Logo
5:10 pm - 12:10 amBOS-OTP
24h 00m1 stop
Austrian Airlines Logo
6:35 am - 1:50 pmOTP-BOS
14h 15m1 stop
$438Austrian Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to Bucharest flights

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

What’s the cheapest day of the week to fly from Boston to Bucharest?

The average price of all round-trip flights from Boston to Bucharest Otopeni Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Boston to Bucharest, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Boston to Bucharest Otopeni Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Bucharest Otopeni Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Bucharest Otopeni Intl Airport is January, where tickets cost $574 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,116 and $864 respectively.

How far in advance should I book a flight from Boston to Bucharest Otopeni Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Bucharest Otopeni Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Bucharest Otopeni Intl Airport, you should book around 3 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$253
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Boston to Bucharest

When to book flights from Boston to Bucharest

Are your dates flexible? Find out the best times to travel from Boston to Bucharest 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 Boston to Bucharest flights

  • What is the cheapest flight from Boston to Bucharest Otopeni Intl Airport?

    In the last 3 days, the lowest price for a flight from Boston to Bucharest Otopeni Intl Airport was $253 for a one-way ticket and $382 for a round-trip.

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

    Yes, you’ll need a passport to travel to Bucharest from Boston.

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

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

  • Which airline alliances offer flights from Boston to Bucharest?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Boston and Bucharest, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Bucharest, SWISS or United Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Bucharest are SWISS and United Airlines. With an average price for the route of $726 and an overall rating of 7.5, SWISS is the most popular choice. United Airlines is also a great choice for the route, with an average price of $864 and an overall rating of 7.4.

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

    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 Bucharest.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bucharest 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 Bucharest?

    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 Bucharest with an airline and back to Boston with another airline. Booking your flights between Boston and OTP 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 Bucharest?

    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 Bucharest 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 5 airlines serving from Boston to Bucharest

 
See real verified KAYAK customer reviews for airlines flying from Boston to Bucharest. 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 Bucharest? 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.
8.0
DeltaOverall score based on 7980 reviews
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
7.9Entertainment
Airline reviews

Delayed and took off even later than the scheduled delay time

8.0 ExcellentAnonymous, Jul 2025DTW - SEA
Read more Delta reviews

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

Everything was very good, except that the plane was an hour and a half late

flight with heavy turbulence old boeing 777 rest wasnt clean dashboard doesn’t work

Light and recline did not work on my seat. Very uncomfortable and could not read in the dark

Bad experience; they are not good anymore. They charge too much for luggage seat are so uncomfortable, Flight delays which may miss your next flight, they don’t care if you miss the flight or not. Zero customer services for front desk representatives Istanbul's airport I’m not using this airline any more.

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

It wasn't good. I didn’t understand. They changed 320 dollars for 2 luggage. My ticket was regular and I paid almost 1200.00 dollars. Why they did charge? I want my money back.. thanks Yılmaz polat

Very punctual, the onboard staff was friendly and correct, the flight was fortunately very calm, the toilets were clean, in short, an excellent experience Thanks

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

Safe arrival. Improvement on Time efficiency Effective Communication will be great.

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

They removed our booking without telling us. Cost us thousands to book last minute

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

The international flight from PHL to Lisbon was one of the worst I’ve experienced, ever. What was really disappointing was the entire experience of comfort and service in the coach cabin after takeoff. The food was inedible and the wine served with dinner was such low quality - it tasted of petrol. I couldn’t eat more than a bite or two of the chicken entree, being worried it would make me ill. The service took so long to reach the entire coach cabin, I ended up having the lights turned off on me as though I had to rush though dinner (though as I mentioned, it wasn’t as if I ate much - only the salad). Most of the attendants seemed generally annoyed and were not friendly or polite. While there was some turbulence, it wasn’t too uncomfortable and I know that is just a chance. The temperature of the cabin was so warm, even a friend a row or two up and on the other side of the plane felt like this. To top it all off, the seat was so uncomfortable and flattened/overused, I had back pains for DAYS afterward.

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

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