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Cheap flights from Boston to Bucharest from $232

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 9/21. 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

SWISS Logo
5:05 pm - 3:20 pmBOS-OTP
15h 15m1 stop
SWISS Logo
6:30 am - 7:55 pmOTP-BOS
20h 25m1 stop
$437SWISS
Find Deal
Tue, Sep 16 - Fri, Oct 17
Austrian Airlines Logo
5:10 pm - 12:25 pmBOS-OTP
12h 15m1 stop
Austrian Airlines Logo
6:35 am - 5:54 pmOTP-BOS
18h 19m2 stops
$439Austrian Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 30
Logo
9:40 pm - 3:20 pmBOS-OTP
10h 40m1 stop
Logo
6:35 am - 1:50 pmOTP-BOS
14h 15m1 stop
$440
Find Deal
Sun, Sep 7 - Sat, Sep 20
Logo
6:00 am - 6:35 pmBOS-OTP
29h 35m2 stops
Logo
6:30 am - 3:25 pmOTP-BOS
15h 55m1 stop
$444
Find Deal
Tue, Sep 16 - Fri, Sep 26
Lufthansa Logo
8:40 pm - 6:35 pmBOS-OTP
14h 55m1 stop
Lufthansa Logo
6:05 am - 1:25 pmOTP-BOS
14h 20m2 stops
$458Lufthansa
Find Deal
Wed, Nov 5 - Fri, Nov 28
United Airlines Logo
6:25 pm - 12:30 pmBOS-OTP
11h 05m1 stop
United Airlines Logo
5:55 am - 7:12 pmOTP-BOS
20h 17m2 stops
$461United Airlines
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Fri, Nov 7 - Tue, Nov 25
British Airways Logo
8:05 pm - 12:25 amBOS-OTP
21h 20m1 stop
British Airways Logo
8:25 am - 8:35 pmOTP-BOS
19h 10m2 stops
$476British Airways
Find Deal
Wed, Sep 17 - Fri, Sep 26
Lufthansa Logo
8:05 pm - 6:35 pmBOS-OTP
15h 30m1 stop
Lufthansa Logo
6:05 am - 5:40 pmOTP-BOS
18h 35m1 stop
$481Lufthansa
Find Deal
Sun, Sep 7 - Sat, Sep 20
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
$482United Airlines
Find Deal
Sun, Sep 7 - Sat, Sep 20
British Airways Logo
7:40 pm - 12:25 amBOS-OTP
21h 45m1 stop
British Airways Logo
8:25 am - 8:10 pmOTP-BOS
18h 45m1 stop
$496British Airways
Find Deal
Wed, Sep 17 - Fri, Sep 26

SWISS flights from Boston to Bucharest Otopeni Intl Airport

Our best SWISS deals on Boston to Bucharest Otopeni Intl Airport flight tickets
SWISS
Sep 16
BOS5:05 pmBoston Logan Intl
15h 15m
1 stop
OTP3:20 pmBucharest Otopeni Intl
Oct 17
OTP6:30 amBucharest Otopeni Intl
20h 25m
1 stop
BOS7:55 pmBoston Logan Intl
$437
Find similar
SWISS
Nov 6
BOS9:50 pmBoston Logan Intl
19h 35m
1 stop
OTP12:25 amBucharest Otopeni Intl
Nov 27
OTP6:30 amBucharest Otopeni Intl
20h 50m
1 stop
BOS8:20 pmBoston Logan Intl
$441
Find similar
SWISS
Sep 16
BOS9:40 pmBoston Logan Intl
20h 25m
1 stop
OTP1:05 amBucharest Otopeni Intl
Sep 26
OTP6:30 amBucharest Otopeni Intl
15h 55m
1 stop
BOS3:25 pmBoston Logan Intl
$442
Find similar

Austrian Airlines flights from Boston to Bucharest Otopeni Intl Airport

Our best Austrian Airlines deals on Boston to Bucharest Otopeni Intl Airport flight tickets
Austrian Airlines
Sep 1
BOS5:10 pmBoston Logan Intl
12h 15m
1 stop
OTP12:25 pmBucharest Otopeni Intl
Sep 30
OTP6:35 amBucharest Otopeni Intl
18h 19m
2 stops
BOS5:54 pmBoston Logan Intl
$439
Find similar
Austrian Airlines
Sep 22
BOS1:35 pmBoston Logan Intl
15h 50m
2 stops
OTP12:25 pmBucharest Otopeni Intl
Oct 3
OTP6:35 amBucharest Otopeni Intl
14h 15m
1 stop
BOS1:50 pmBoston Logan Intl
$457
Find similar
Austrian Airlines
Sep 22
BOS1:35 pmBoston Logan Intl
15h 50m
2 stops
OTP12:25 pmBucharest Otopeni Intl
Oct 3
OTP6:35 amBucharest Otopeni Intl
18h 19m
2 stops
BOS5:54 pmBoston Logan Intl
$467
Find similar

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 August 18, 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

Tue 9/16

5:05 pm-3:20 pm

1 stop15h 15m

Bucharest Otopeni Intl

Fri 10/17

6:30 am-7:55 pm

1 stop20h 25m

$437

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Mon 9/1

5:10 pm-12:25 pm

1 stop12h 15m

Bucharest Otopeni Intl

Tue 9/30

6:35 am-5:54 pm

2 stops18h 19m

$439

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sun 9/7

9:40 pm-3:20 pm

1 stop10h 40m

Bucharest Otopeni Intl

Sat 9/20

6:35 am-1:50 pm

1 stop14h 15m

$440

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Tue 9/16

6:00 am-6:35 pm

2 stops29h 35m

Bucharest Otopeni Intl

Fri 9/26

6:30 am-3:25 pm

1 stop15h 55m

$444

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Wed 11/5

8:40 pm-6:35 pm

1 stop14h 55m

Bucharest Otopeni Intl

Fri 11/28

6:05 am-1:25 pm

2 stops14h 20m

$458

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Fri 11/7

6:25 pm-12:30 pm

1 stop11h 05m

Bucharest Otopeni Intl

Tue 11/25

5:55 am-7:12 pm

2 stops20h 17m

$461

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Wed 9/17

8:05 pm-12:25 am

1 stop21h 20m

Bucharest Otopeni Intl

Fri 9/26

8:25 am-8:35 pm

2 stops19h 10m

$476

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sun 9/7

8:05 pm-6:35 pm

1 stop15h 30m

Bucharest Otopeni Intl

Sat 9/20

6:05 am-5:40 pm

1 stop18h 35m

$481

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Sun 9/7

8:05 pm-6:35 pm

1 stop15h 30m

Bucharest Otopeni Intl

Sat 9/20

6:05 am-5:40 pm

1 stop18h 35m

$482

BostonBucharest

BOS - OTP

BOSOTP

Boston Logan Intl

Wed 9/17

7:40 pm-12:25 am

1 stop21h 45m

Bucharest Otopeni Intl

Fri 9/26

8:25 am-8:10 pm

1 stop18h 45m

$496

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bucharest from

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 January, then book flights to Bucharest Otopeni Intl Airport from Boston during October instead. Flights to Bucharest Otopeni Intl Airport in October, while not as cheap as those in January, still average around $578.

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 $730 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 August 2025, prices for Boston to Bucharest Otopeni Intl Airport flights are approximately 13% cheaper 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

Best Price Found

$232

Fastest flight time

10h 40m

Direct flights

None
The best one-way flight to Bucharest Otopeni Intl Airport from Boston in the past 72 hours is $232. The best round-trip flight deal from Boston to Bucharest Otopeni Intl Airport found on momondo in the last 72 hours is $437.
The fastest flight from Boston to Bucharest Otopeni Intl Airport takes 10h 40m
There are no direct flights from Boston to Bucharest Otopeni Intl Airport. Popular non-direct route for this connection is Boston Logan Intl Airport - Bucharest Otopeni Intl Airport.
Search flight deals

  • 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 $404Free CancellationRating
7.6
1,699 reviews
Search SWISS flights
Scandinavian AirlinesPriceFrom $409Free CancellationRating
7.4
1,470 reviews
Search Scandinavian Airlines flights
Air FrancePriceFrom $426Free CancellationRating
7.4
1,468 reviews
Search Air France flights
British AirwaysPriceFrom $501Free CancellationRating
6.6
7,277 reviews
Search British Airways flights
DeltaPriceFrom $512Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Turkish AirlinesPriceFrom $514Free CancellationRating
7.3
3,945 reviews
Search Turkish Airlines flights
KLMPriceFrom $521Free CancellationRating
7.8
1,385 reviews
Search KLM flights
United AirlinesPriceFrom $587Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
LufthansaPriceFrom $634Free CancellationRating
6.8
7,330 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.

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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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