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Cheap flights from Boston to Bucharest from $333

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Bucharest departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Multiple Airlines Logo
8:40 pm - 6:35 pmBOS-OTP
14h 55m1 stop
Multiple Airlines Logo
7:10 pm - 2:05 pmOTP-BOS
25h 55m1 stop
$353Multiple Airlines
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Sun, Nov 23 - Mon, Dec 1
Multiple Airlines Logo
10:10 pm - 3:50 pmBOS-OTP
10h 40m1 stop
Multiple Airlines Logo
7:10 pm - 5:01 pmOTP-BOS
28h 51m2 stops
$354Multiple Airlines
Find Deal
Sun, Nov 23 - Mon, Dec 1
British Airways Logo
6:55 pm - 3:45 pmBOS-OTP
13h 50m1 stop
British Airways Logo
8:05 am - 9:55 pmOTP-BOS
20h 50m1 stop
$411British Airways
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Wed, Dec 31 - Wed, Jan 7
British Airways Logo
9:35 pm - 8:00 pmBOS-OTP
15h 25m1 stop
British Airways Logo
8:05 am - 10:40 pmOTP-BOS
21h 35m2 stops
$421British Airways
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Wed, Dec 31 - Wed, Jan 7
United Airlines Logo
6:40 pm - 6:40 pmBOS-OTP
41h 00m2 stops
United Airlines Logo
2:50 pm - 2:52 pmOTP-BOS
31h 02m2 stops
$448United Airlines
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Sun, Nov 23 - Mon, Dec 1
Delta Logo
9:59 am - 12:10 pmBOS-OTP
19h 11m2 stops
Delta Logo
6:30 am - 3:05 pmOTP-BOS
15h 35m1 stop
$450Delta
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Wed, Oct 15 - Thu, Oct 23
United Airlines Logo
8:05 pm - 6:35 pmBOS-OTP
15h 30m1 stop
United Airlines Logo
6:00 am - 5:55 pmOTP-BOS
18h 55m2 stops
$456United Airlines
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Mon, Oct 13 - Tue, Oct 21
Delta Logo
4:50 pm - 1:00 pmBOS-OTP
13h 10m1 stop
Delta Logo
1:45 pm - 1:40 pmOTP-BOS
30h 55m1 stop
$459Delta
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Sun, Oct 12 - Wed, Oct 22
Lufthansa Logo
8:40 pm - 6:35 pmBOS-OTP
14h 55m1 stop
Lufthansa Logo
7:20 pm - 6:35 pmOTP-BOS
30h 15m1 stop
$467Lufthansa
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Sat, Nov 22 - Mon, Dec 1
Lufthansa Logo
4:20 pm - 2:05 pmBOS-OTP
14h 45m1 stop
Lufthansa Logo
5:50 am - 1:25 pmOTP-BOS
14h 35m1 stop
$494Lufthansa
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Thu, Nov 20 - Thu, Dec 4

Lufthansa flights from Boston to Bucharest Otopeni Intl Airport

Our best Lufthansa deals on Boston to Bucharest Otopeni Intl Airport flight tickets
Lufthansa
Nov 22
BOS8:40 pmBoston Logan Intl
14h 55m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Dec 1
OTP7:20 pmBucharest Otopeni Intl
30h 15m
1 stop
BOS6:35 pmBoston Logan Intl
$467
Find similar
Lufthansa
Nov 20
BOS4:20 pmBoston Logan Intl
14h 45m
1 stop
OTP2:05 pmBucharest Otopeni Intl
Dec 4
OTP5:50 amBucharest Otopeni Intl
14h 35m
1 stop
BOS1:25 pmBoston Logan Intl
$494
Find similar
Lufthansa
Oct 10
BOS10:00 pmBoston Logan Intl
18h 40m
1 stop
OTP11:40 pmBucharest Otopeni Intl
Oct 19
OTP6:05 amBucharest Otopeni Intl
18h 35m
1 stop
BOS5:40 pmBoston Logan Intl
$513
Find similar

United Airlines flights from Boston to Bucharest Otopeni Intl Airport

Our best United Airlines deals on Boston to Bucharest Otopeni Intl Airport flight tickets
United Airlines
Nov 23
BOS6:40 pmBoston Logan Intl
41h 00m
2 stops
OTP6:40 pmBucharest Otopeni Intl
Dec 1
OTP2:50 pmBucharest Otopeni Intl
31h 02m
2 stops
BOS2:52 pmBoston Logan Intl
$448
Find similar
United Airlines
Oct 13
BOS8:05 pmBoston Logan Intl
15h 30m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Oct 21
OTP6:00 amBucharest Otopeni Intl
18h 55m
2 stops
BOS5:55 pmBoston Logan Intl
$456
Find similar
United Airlines
Oct 14
BOS12:10 pmBoston Logan Intl
23h 25m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Oct 24
OTP6:00 amBucharest Otopeni Intl
21h 10m
1 stop
BOS8:10 pmBoston Logan Intl
$460
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momondo Fare Finder

 
Customize your flight search to find flights from Boston to Bucharest Otopeni Intl Airport 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 September 16, 2025.
Use the filters below to find and compare flights from Boston to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sun 11/23

8:40 pm-6:35 pm

1 stop14h 55m

Bucharest Otopeni Intl

Mon 12/1

7:10 pm-2:05 pm

1 stop25h 55m

$353

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sun 11/23

10:10 pm-3:50 pm

1 stop10h 40m

Bucharest Otopeni Intl

Mon 12/1

7:10 pm-5:01 pm

2 stops28h 51m

$354

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Wed 12/31

6:55 pm-3:45 pm

1 stop13h 50m

Bucharest Otopeni Intl

Wed 1/7

8:05 am-9:55 pm

1 stop20h 50m

$411

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Wed 12/31

9:35 pm-8:00 pm

1 stop15h 25m

Bucharest Otopeni Intl

Wed 1/7

8:05 am-10:40 pm

2 stops21h 35m

$421

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sun 11/23

6:40 pm-6:40 pm

2 stops41h 00m

Bucharest Otopeni Intl

Mon 12/1

2:50 pm-2:52 pm

2 stops31h 02m

$448

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Wed 10/15

9:59 am-12:10 pm

2 stops19h 11m

Bucharest Otopeni Intl

Thu 10/23

6:30 am-3:05 pm

1 stop15h 35m

$450

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Mon 10/13

8:05 pm-6:35 pm

1 stop15h 30m

Bucharest Otopeni Intl

Tue 10/21

6:00 am-5:55 pm

2 stops18h 55m

$456

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sun 10/12

4:50 pm-1:00 pm

1 stop13h 10m

Bucharest Otopeni Intl

Wed 10/22

1:45 pm-1:40 pm

1 stop30h 55m

$459

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sat 11/22

8:40 pm-6:35 pm

1 stop14h 55m

Bucharest Otopeni Intl

Mon 12/1

7:20 pm-6:35 pm

1 stop30h 15m

$467

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Thu 11/20

4:20 pm-2:05 pm

1 stop14h 45m

Bucharest Otopeni Intl

Thu 12/4

5:50 am-1:25 pm

1 stop14h 35m

$494

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boston to Bucharest Otopeni Intl Airport

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 is the cheapest month to fly to Bucharest Otopeni Intl Airport?

If you aren’t able to travel during the month of October, then book flights to Bucharest Otopeni Intl Airport from Boston during January instead. Flights to Bucharest Otopeni Intl Airport in January, while not as cheap as those in October, still average around $574.

What is the cheapest day to depart on your flight to Bucharest Otopeni Intl Airport?

Our data shows that Monday is the least expensive day to fly to Bucharest Otopeni Intl Airport. Tickets to fly out on this day can be as low as $682. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Bucharest Otopeni Intl Airport for around $890.

What is the cheapest time of day to depart on your flight to Bucharest Otopeni Intl Airport?

Our most recent data shows that the best time of day to fly to Bucharest Otopeni Intl Airport is in the morning. Flights from Boston to Bucharest Otopeni Intl Airport during this time can be as low as $683. In the afternoon is when there is more demand to fly to Bucharest Otopeni Intl Airport, so prices are often more expensive at around $897 per ticket.

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

You are more likely to see cheaper flights to Bucharest Otopeni Intl Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest Otopeni Intl Airport for around $728 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest Otopeni Intl Airport from Boston for as low as $600 on momondo.

How have Boston to Bucharest Otopeni Intl Airport flight prices changed over time?

As of September 2025, prices for Boston to Bucharest Otopeni Intl Airport flights are approximately 293% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Bucharest Otopeni Intl Airport

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

Cheap Boston to Bucharest Otopeni Intl Airport (BOS to OTP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Bucharest Otopeni Intl Airport

Direct flights

None
There are no direct flights from Boston to Bucharest Otopeni Intl Airport. There are no popular flight routes from Boston to Bucharest Otopeni Intl Airport.
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  • How far is Boston Logan Intl to Bucharest Otopeni Intl by plane?

    A flight from Boston Logan Intl to Bucharest Otopeni Intl will travel around 4554.7 mi. Flights usually cover this in 10h 40m, depending on flying conditions and air traffic around both airports.

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

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

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

  • How old do you have to be to fly from Boston Logan Intl Airport to Bucharest Otopeni Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Bucharest Otopeni Intl Airport.

  • What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?

    The required travel and health documents for your Bucharest Otopeni Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bucharest Otopeni Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Boston to Bucharest Otopeni Intl Airport?

Best airlines flying from Boston to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from Boston to Bucharest Otopeni Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $341Free CancellationRating
7.6
1,737 reviews
Search SWISS flights
Scandinavian AirlinesPriceFrom $409Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
Air FrancePriceFrom $426Free CancellationRating
7.4
1,468 reviews
Search Air France flights
British AirwaysPriceFrom $501Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
DeltaPriceFrom $512Free CancellationRating
7.9
7,957 reviews
Search Delta flights
Turkish AirlinesPriceFrom $514Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
KLMPriceFrom $521Free CancellationRating
7.8
1,386 reviews
Search KLM flights
United AirlinesPriceFrom $587Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
LufthansaPriceFrom $608Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Bucharest. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Boston to Bucharest flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Boston and Bucharest by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Bucharest right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to Bucharest flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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