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Cheap flights from Boston to Bratislava from $773

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Bratislava departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Boston to Bratislava

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:25 pm - 12:05 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
12h 40m1 stop Dublin
Multiple Airlines Logo
10:55 pm - 9:45 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
52h 50m2 stops Palermo Punta Raisi Barcelona-El Prat
$773Multiple Airlines
Fri, Oct 9 - Fri, Oct 16
Multiple Airlines Logo
8:05 pm - 10:00 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
19h 55m2 stops Munich Franz Josef Strauss Barcelona-El Prat
Multiple Airlines Logo
7:00 am - 6:07 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
17h 07m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$786Multiple Airlines
Fri, Oct 9 - Fri, Oct 16
Multiple Airlines Logo
5:45 pm - 10:00 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
22h 15m3 stops Frankfurt am Main Munich Franz Josef Strauss Barcelona-El Prat
Multiple Airlines Logo
7:00 am - 6:07 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
17h 07m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$831Multiple Airlines
Fri, Oct 9 - Fri, Oct 16
Multiple Airlines Logo
10:50 am - 10:40 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
29h 50m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
11:05 pm - 2:41 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
21h 36m2 stops Dublin Montreal Pierre Elliott Trudeau Intl
$836Multiple Airlines
Tue, Aug 25 - Wed, Sep 2
Multiple Airlines Logo
10:35 am - 2:50 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
22h 15m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
7:50 am - 2:40 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
36h 50m3 stops Warsaw Frederic Chopin Barcelona-El Prat Lisbon Humberto Delgado
$840Multiple Airlines
Sun, Nov 15 - Sat, Nov 28
Multiple Airlines Logo
7:50 pm - 11:35 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
21h 45m3 stops Reykjavik Keflavik Intl London Gatwick Malaga
Multiple Airlines Logo
7:50 am - 2:40 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
36h 50m3 stops Warsaw Frederic Chopin Barcelona-El Prat Lisbon Humberto Delgado
$849Multiple Airlines
Sun, Nov 15 - Sat, Nov 28
Multiple Airlines Logo
7:50 pm - 5:45 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
15h 55m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
9:00 am - 2:40 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
35h 40m2 stops Barcelona-El Prat Lisbon Humberto Delgado
$853Multiple Airlines
Sun, Nov 15 - Sat, Nov 28
Multiple Airlines Logo
9:20 pm - 5:45 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
14h 25m1 stop Dublin
Multiple Airlines Logo
2:10 pm - 2:40 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
30h 30m2 stops Dublin Lisbon Humberto Delgado
$889Multiple Airlines
Sun, Nov 15 - Sat, Nov 28
Multiple Airlines Logo
4:45 pm - 1:10 amBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
26h 25m2 stops Frankfurt am Main Barcelona-El Prat
Multiple Airlines Logo
10:45 pm - 2:45 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
22h 00m2 stops Barcelona-El Prat Frankfurt am Main
$901Multiple Airlines
Wed, Sep 2 - Sat, Sep 5
Multiple Airlines Logo
11:40 pm - 10:40 pmBOS  Boston Logan Intl-BTS Bratislava - M. R. Štefánik
17h 00m1 stop Dublin
Multiple Airlines Logo
2:45 pm - 2:45 pmBTS  Bratislava - M. R. Štefánik-BOS Boston Logan Intl
30h 00m2 stops Barcelona-El Prat Lisbon Humberto Delgado
$912Multiple Airlines
Tue, Aug 25 - Wed, Sep 2

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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, momondo users made 832,500 searches. Data last updated August 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 Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Fri 10/9

5:25 pm-12:05 pm

1 stop12h 40m

Bratislava - M. R. Štefánik

Fri 10/16

10:55 pm-9:45 pm

2 stops52h 50m

$773
Quickest round-trip

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Fri 10/9

8:05 pm-10:00 pm

2 stops19h 55m

Bratislava - M. R. Štefánik

Fri 10/16

7:00 am-6:07 pm

2 stops17h 07m

$786

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Fri 10/9

5:45 pm-10:00 pm

3 stops22h 15m

Bratislava - M. R. Štefánik

Fri 10/16

7:00 am-6:07 pm

2 stops17h 07m

$831

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Tue 8/25

10:50 am-10:40 pm

2 stops29h 50m

Bratislava - M. R. Štefánik

Wed 9/2

11:05 pm-2:41 pm

2 stops21h 36m

$836

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Sun 11/15

10:35 am-2:50 pm

2 stops22h 15m

Bratislava - M. R. Štefánik

Sat 11/28

7:50 am-2:40 pm

3 stops36h 50m

$840

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Sun 11/15

7:50 pm-11:35 pm

3 stops21h 45m

Bratislava - M. R. Štefánik

Sat 11/28

7:50 am-2:40 pm

3 stops36h 50m

$849

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Sun 11/15

7:50 pm-5:45 pm

2 stops15h 55m

Bratislava - M. R. Štefánik

Sat 11/28

9:00 am-2:40 pm

2 stops35h 40m

$853

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Sun 11/15

9:20 pm-5:45 pm

1 stop14h 25m

Bratislava - M. R. Štefánik

Sat 11/28

2:10 pm-2:40 pm

2 stops30h 30m

$889

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Wed 9/2

4:45 pm-1:10 am

2 stops26h 25m

Bratislava - M. R. Štefánik

Sat 9/5

10:45 pm-2:45 pm

2 stops22h 00m

$901

BostonBratislava

BOS Boston Logan Intl - BTS Bratislava - M. R. Štefánik

BOSBTS

Boston Logan Intl

Tue 8/25

11:40 pm-10:40 pm

1 stop17h 00m

Bratislava - M. R. Štefánik

Wed 9/2

2:45 pm-2:45 pm

2 stops30h 00m

$912

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Boston to Bratislava

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

Cheap Boston to Bratislava (BOS to BTS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Bratislava

Fastest flight time

12h 40m

Direct flights

None
The fastest flight from Boston to Bratislava takes 12h 40m
There are no direct flights from Boston to Bratislava. There are no popular flight routes from Boston to Bratislava.
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Frequently asked questions about flying from Boston to Bratislava

  • How far is Boston Logan Intl to Bratislava - M. R. Štefánik by plane?

    Bratislava - M. R. Štefánik is 4061.5 mi away from Boston Logan Intl. Flights usually cover this in 12h 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 Bratislava - M. R. Štefánik Airport?

    Prices for flights from Boston Logan Intl Airport to Bratislava - M. R. Štefánik Airport refresh daily.

  • How old do you have to be to fly from Boston Logan Intl Airport to Bratislava - M. R. Štefánik Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Bratislava - M. R. Štefánik Airport.

  • What documentation or ID do you need to fly to Bratislava - M. R. Štefánik Airport?

    The travel and health documents required for your trip to Bratislava - M. R. Štefánik Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bratislava - M. R. Štefánik Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Boston to Bratislava

  • How do I get Price Alerts for flights from Boston to Bratislava?

    Confirm your travel details to search for the latest offers for flights from Boston to Bratislava. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Boston to Bratislava with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bratislava from Boston.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bratislava from Boston.

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

If you are simply researching potential flights to Bratislava, momondo offers a useful price alert feature which will track prices for flights to Bratislava from Boston and alert you when they change.

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