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$301+ Cheap flights from Boston (BOS) to Bratislava (BTS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BTS
Aug 10 — Aug 171
Mon 8/10
Mon 8/17
1 adult, Economy
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Cheap flight deals from Boston to Bratislava

Cheapest flights from Boston to Bratislava
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 July 11, 2026.

This Mytrip deal was found by Cheapflights users on 7/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:45 pm
BOS
-
BTS
2 stops19h 50m
Multiple Airlines
Wed 7/157:50 pm
BTS
-
BOS
2 stops24h 55m
Multiple Airlines
Deal found 7/7$628
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 10/95:25 pm
BOS
-
BTS
1 stop12h 40m
Multiple Airlines
Wed 10/147:50 pm
BTS
-
BOS
2 stops31h 15m
Multiple Airlines
Deal found 7/7$773
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Wed 10/710:55 pm
BOS
-
BTS
1 stop18h 30m
Multiple Airlines
Wed 10/1410:35 am
BTS
-
BOS
2 stops16h 30m
Multiple Airlines
Deal found 7/7$774
This Kiwi.com deal was found by Cheapflights users on 7/8. 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.
Thu 9/1710:55 pm
BOS
-
BTS
1 stop33h 55m
Multiple Airlines
Sun 9/279:00 am
BTS
-
BOS
1 stop18h 45m
Multiple Airlines
Deal found 7/8$785
This Trip.com deal was found by Cheapflights users on 7/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:45 pm
BOS
-
BTS
2 stops16h 15m
Multiple Airlines
Tue 8/259:00 am
BTS
-
BOS
2 stops35h 45m
Multiple Airlines
Deal found 7/7$817
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Thu 10/85:10 pm
BOS
-
BTS
2 stops19h 50m
Multiple Airlines
Wed 10/149:10 am
BTS
-
BOS
1 stop17h 55m
Multiple Airlines
Deal found 7/7$818
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Thu 10/89:15 pm
BOS
-
BTS
1 stop19h 40m
Multiple Airlines
Tue 10/1311:20 pm
BTS
-
BOS
2 stops21h 35m
Multiple Airlines
Deal found 7/7$819
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Thu 10/89:15 pm
BOS
-
BTS
1 stop19h 40m
Multiple Airlines
Mon 10/127:40 pm
BTS
-
BOS
2 stops25h 15m
Multiple Airlines
Deal found 7/7$825
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Wed 10/710:55 pm
BOS
-
BTS
1 stop18h 30m
Multiple Airlines
Mon 10/127:40 pm
BTS
-
BOS
2 stops25h 15m
Multiple Airlines
Deal found 7/7$831

Find 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 July 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$773
(Kiwi.com)

One-way from

$301
(Kiwi.com)
Provider with most accurate pricing for Boston Logan Intl-Bratislava - M. R. Štefánik flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Bratislava - M. R. Štefánik flights.
Search Deals
From Boston Logan Intl to Bratislava - M. R. Štefánik
Search Deals
One-way flight from Boston Logan Intl to Bratislava - M. R. Štefánik
Search Deals

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 July 11, 2026.
Use the filters below to find and compare flights from Boston to Bratislava that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Fri 10/9

5:25 pm-12:05 pm

1 stop12h 40m

Bratislava - M. R. Štefánik

Wed 10/14

7:50 pm-9:05 pm

2 stops31h 15m

$773

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Wed 10/7

10:55 pm-11:25 pm

1 stop18h 30m

Bratislava - M. R. Štefánik

Mon 10/12

7:40 pm-2:55 pm

2 stops25h 15m

$831

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Fri 10/9

5:25 pm-12:05 pm

1 stop12h 40m

Bratislava - M. R. Štefánik

Mon 10/12

7:40 pm-2:55 pm

2 stops25h 15m

$834

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Tue 8/18

8:50 pm-7:00 pm

2 stops16h 10m

Bratislava - M. R. Štefánik

Tue 8/25

9:00 pm-8:55 pm

3 stops29h 55m

$845

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Mon 8/3

5:25 pm-8:35 pm

1 stop21h 10m

Bratislava - M. R. Štefánik

Wed 9/2

10:35 am-9:05 pm

2 stops16h 30m

$847

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Fri 8/21

5:25 pm-12:05 pm

1 stop12h 40m

Bratislava - M. R. Štefánik

Sun 8/30

11:25 am-4:10 pm

2 stops34h 45m

$863
Quickest round-trip

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Tue 7/28

5:40 pm-2:35 pm

2 stops14h 55m

Bratislava - M. R. Štefánik

Wed 9/2

9:10 am-9:05 pm

1 stop17h 55m

$883

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Wed 7/29

9:05 pm-6:20 pm

2 stops15h 15m

Bratislava - M. R. Štefánik

Wed 9/2

9:10 am-9:05 pm

1 stop17h 55m

$942

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Mon 11/30

5:50 pm-2:25 pm

2 stops14h 35m

Bratislava - M. R. Štefánik

Sat 12/12

2:10 pm-1:50 pm

1 stop29h 40m

$947
Cheapest one-way
Quickest one-way

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Wed 9/9

3:35 pm-10:05 am

3 stops36h 30m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 11 resultsSorted by cheapest first
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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 July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Bratislava flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Bratislava flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Related info for your journey

Find useful and relevant information for your journey from Boston to Bratislava. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Boston to Bratislava that include hotel bookings?

    Yes. In addition to deals on Boston to Bratislava flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Bratislava?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Bratislava.

  • Can I find deals for business class flights from Boston to Bratislava?

    Yes. Cheapflights offers flight deals from Boston to Bratislava by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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