$844+ Cheap flights from Boston (BOS) to Bratislava (BTS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BTS
Dec 2 — Dec 91
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Find flight deals from Boston to Bratislava
Cheapest flights from Boston to BratislavaExplore the most affordable flight options available from Boston to Bratislava. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.
Explore the most affordable flight options available from Boston to Bratislava. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:20 pmBOS - BTS
1 stop18h 05mMultiple Airlines
Wed 12/316:00 amBTS - BOS
1 stop13h 50mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$844
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:05 pmBOS - BTS
2 stops24h 20mMultiple Airlines
Wed 12/316:00 amBTS - BOS
1 stop13h 50mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$969
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:45 pmBOS - BTS
2 stops17h 45mMultiple Airlines
Tue 12/306:25 amBTS - BOS
1 stop13h 25mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,095
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:20 pmBOS - BTS
1 stop22h 05mMultiple Airlines
Mon 12/295:00 pmBTS - BOS
1 stop26h 50mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,121
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:20 pmBOS - BTS
1 stop22h 05mMultiple Airlines
Tue 12/306:25 amBTS - BOS
1 stop13h 25mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,123
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:00 amBOS - BTS
2 stops19h 25mMultiple Airlines
Tue 12/306:25 amBTS - BOS
1 stop13h 25mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,219
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:12 amBOS - BTS
2 stops23h 13mMultiple Airlines
Wed 12/316:00 amBTS - BOS
1 stop13h 50mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,259
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:20 pmBOS - BTS
1 stop20h 05mMultiple Airlines
Thu 1/16:10 amBTS - BOS
2 stops16h 40mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,314
Cheap flight deals from Boston to Bratislava
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Bratislava (BTS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 2, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $752 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Bratislava 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, Cheapflights users made 2,558,603 searches. Data last updated November 2, 2025.
Use the filters below to find and compare flights from Boston to Bratislava that are best for you.
Fly from
Boston
Fly to
Bratislava
Route
Depart
Return
Price
BostonBratislava
BOS - BTS
BOSBTS
Boston Logan Intl
Sat 12/27
9:20 pm-9:25 pm
1 stop18h 05m
Bratislava - M. R. Štefánik
Wed 12/31
6:00 am-1:50 pm
1 stop13h 50m
$844
BostonBratislava
BOS - BTS
BOSBTS
Boston Logan Intl
Fri 3/27
11:45 pm-12:40 am
3 stops19h 55m
Bratislava - M. R. Štefánik
Mon 4/6
3:35 pm-8:05 pm
3 stops34h 30m
$856
BostonBratislava
BOS - BTS
BOSBTS
Boston Logan Intl
Sun 12/28
5:05 pm-11:25 pm
2 stops24h 20m
Bratislava - M. R. Štefánik
Wed 12/31
6:00 am-1:50 pm
1 stop13h 50m
$969
BostonBratislava
BOS - BTS
BOSBTS
Boston Logan Intl
Sun 12/28
10:45 pm-10:30 pm
2 stops17h 45m
Bratislava - M. R. Štefánik
Tue 12/30
6:25 am-1:50 pm
1 stop13h 25m
$1,095
BostonBratislava
BOS - BTS
BOSBTS
Boston Logan Intl
Sat 12/27
5:20 pm-9:25 pm
1 stop22h 05m
Bratislava - M. R. Štefánik
Mon 12/29
5:00 pm-1:50 pm
1 stop26h 50m
$1,121
BostonBratislava
BOS - BTS
BOSBTS
Boston Logan Intl
Sat 12/27
5:20 pm-9:25 pm
1 stop22h 05m
Bratislava - M. R. Štefánik
Tue 12/30
6:25 am-1:50 pm
1 stop13h 25m
$1,123
Compare providers for flights from Boston to Bratislava
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Bratislava in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Bratislava flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Bratislava flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Bratislava flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Bratislava flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Bratislava flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boston to Bratislava
Have a flexible travel schedule? Discover the best time to fly to Bratislava from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.