BOS - OTP

$313 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 4/15. 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 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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Everything you should know

Cheapest round-trip
$364
Typical prices: $484-$730
Multiple Airlines
Mon 1/12Fri 1/23
BOS - OTP • 1 stop
Cheapest one-way
$313
Typical prices: $639-$671
Lufthansa
Wed 4/15
BOS - OTP • 1 stop
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 31% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

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

Mon, Jan 12 - Fri, Jan 23
Multiple Airlines Logo
10:10 pm - 3:50 pm
BOS
-
OTP
10h 40m1 stop
Multiple Airlines Logo
6:55 am - 5:14 pm
OTP
-
BOS
17h 19m2 stops
$364Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
5:10 pm - 12:25 pm
BOS
-
OTP
12h 15m1 stop
Multiple Airlines Logo
2:35 pm - 7:55 pm
OTP
-
BOS
12h 20m1 stop
$378Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
5:10 pm - 12:25 pm
BOS
-
OTP
12h 15m1 stop
Multiple Airlines Logo
2:35 pm - 7:55 pm
OTP
-
BOS
12h 20m1 stop
$380Multiple Airlines
Mon, Jan 12 - Fri, Jan 23
SWISS Logo
10:10 pm - 3:50 pm
BOS
-
OTP
10h 40m1 stop
SWISS Logo
6:30 am - 8:00 pm
OTP
-
BOS
20h 30m1 stop
$382SWISS
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
5:10 pm - 9:05 am
BOS
-
OTP
32h 55m1 stop
Multiple Airlines Logo
6:35 am - 6:07 pm
OTP
-
BOS
18h 32m2 stops
$383Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
5:10 pm - 6:05 pm
BOS
-
OTP
17h 55m1 stop
Multiple Airlines Logo
6:30 am - 5:57 pm
OTP
-
BOS
18h 27m2 stops
$387Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
5:10 pm - 12:25 pm
BOS
-
OTP
12h 15m1 stop
Multiple Airlines Logo
6:35 am - 6:07 pm
OTP
-
BOS
18h 32m2 stops
$390Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
5:10 pm - 6:05 pm
BOS
-
OTP
17h 55m1 stop
Multiple Airlines Logo
2:35 pm - 7:55 pm
OTP
-
BOS
12h 20m1 stop
$407Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
British Airways Logo
9:38 am - 2:30 pm
BOS
-
OTP
21h 52m2 stops
British Airways Logo
8:25 am - 5:00 pm
OTP
-
BOS
15h 35m1 stop
$410British Airways
Tue, May 5 - Tue, May 12
British Airways Logo
12:57 pm - 3:25 pm
BOS
-
OTP
19h 28m2 stops
British Airways Logo
8:25 am - 10:26 pm
OTP
-
BOS
21h 01m2 stops
$414British Airways
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.

How much is a round-trip flight from Boston to Bucharest Otopeni Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Bucharest Otopeni Intl Airport departing in January.

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 October, where tickets cost $496 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,099 and $849 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 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$313
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 51% 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 $313 for a one-way ticket and $364 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?

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

  • Which is the best airline for flights from Boston to Bucharest, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Boston to Bucharest are Delta and KLM. With an average price for the route of $810 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $840 and an overall rating of 7.7.

  • 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.
7.9
DeltaOverall score based on 8008 reviews
8.5Crew
7.9Comfort
7.9Entertainment
8.1Boarding
7.3Food
Airline reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

10.0 ExcellentMargaret, Dec 2025
BOS - PIT
Read more Delta reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Smooth boarding, on time flight, decent food and entertainment options.

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

I can’t even the whole trip was a catastrophe

Poor. Seats uncomfortable. No leg room. Hot and humid the whole trip. Food and staffs were ok.

The seats were so close together, when the man in front of me put his seat back, the screen in front of me was 9 inches from my face. There is no way to lean forward if I needed to pick something up. It was pretty uncomfortable for a ten hour flight. I was very surprised.

The food was good. Most the staff was pleasant. The flight would be drastically improved with WiFi on a long international flight.

When I needed to get my bag off of the plane so that I could take a train because the connection was 4 hours later, they took 2 hours to take my bag off making me take the train and miss my flight simultaneously. The seat size on the plane is too small for an average aged woman let alone a middle-aged man. It's unacceptable and I will not fly Boeing again.

The cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

The biggest let down was with booking experience through Kayak. I booked a flight with checked bags on Kayak. Right away I got a message from travel agency that the flight is not confirmed and to call them. I called them and they said the flight I have booked is no longer available with the price I have booked it for and I can book it with about $100 more. I already had other options I could book with cheaper price so I asked them to cancel my booking. Then they said I can have the ticket with the same price but a date change which was not working for me as I had to be there for a seminar. So again I said no then they said they will cover the charges and confirm my flight. When comes time for check-in I see I have no checked bag option which means the travel agency deceived me saying I can have my booking as I had booked it. And at that point I ended up paying $155 for my checked bag going back and forth. I am extremely angry and unhappy with this experience

it was like a banya -so hot... They did provide a great experience with special food. one toilet broke midflight In general it was a peaceful and relaxing flight - for business class it was good.

Chicago to Istanbul was a much better experience than I expected since I’m more accustomed to Qatar Airways business class. The business lounge in the Istanbul airport was amazing - loved the lockers and phone charging stations, and the bathroom was a spa experience in itself. The onward leg from Istanbul to Karachi was utterly disappointing. Terrible plane, and I felt like I was in economy - the seats don’t come near to lying flat and the food was mediocre. What a sad downgrade - it isn’t as though the ticket on that leg was cheaper. So, on that front, there’s no contest with Qatar airways.

Second leg of Turkish Airline with Indigo is disaster for following reason. 1) You have to carry your cabin bags through ladder to boeing 777 because it was parked somewhere in parking lot and was not given a gate to board passengers and this seems to be people traveling to and fro from those flights and is not issue with flight itself. 2) I choose non vegetarian food on Turkish portal way ahead of checkin to entire trip, However the Indigo flight gave me random veg food saying they code veg food code from Turkish. 3) Indigo did not served any alcoholic beverages stating some weird reason which is non nonsensical. 4)Indigo have TV screens in front of you but it displays nothing except "Welcome Onboard" with annoying white black ground in dark flight. This is the most stupidest and annoying part because you are held hostage for 7 hours and only thing you could do is stare back at white screen which does not have entertainment package or even flight tracker. Such a shame.

nice and clean plane but the seats and the comfort was not what i expected. i expected more based on all the ads and reviews that i've read. I guess you get what you pay for in economy.

Overall it was good. Food was bad. I ordered gluten free vegetarian meal. But I got gluten free chicken for my long flight from Seattle to Istanbul. I don’t eat any kind of meat. Second meal I got eggplant with meat which I couldn’t eat. I don’t understand why we can’t get gluten free vegetarian meal for a 12 hour flight. I eat the bread and that was it.

Worse worse worse, i would not recommend this airline to anyone. Istanbul airport maybe State of the Art facility but staff is rude, only works if they get tips, and they push you to give tips even though my family had spent $50 in tips. Airline staff doesn't speak english so you really can't understand them. It was a nightmare travelling with Turkish. Never again.

As a big guy the seats are way too small for me. Would prefer more comfortable seats on these long haul flights.

My flight was canceled 1 minute before boarding. The customer service was owful, no one could tell us what was going happened. I spent 30hrs instead of 15 from Washington DC to Brussels. No apologie or help

Boeing 777 is a bad choice for a such a long flight.

The staff at IST airport could have been more helpful. Too much wasted time and the plane from IST to KHI was just horrible. The plane was not clean and smelled bad!

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

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

Information on your arrival and departure airports