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Cheap flights from Boston to Bratislava from $515

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 10/16. 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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Cheap round-trip flights

Multiple Airlines Logo
4:45 pm - 10:30 pmBOS-BTS
23h 45m2 stops
Multiple Airlines Logo
11:25 pm - 7:55 pmBTS-BOS
26h 30m2 stops
$515Multiple Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 21
Multiple Airlines Logo
4:00 pm - 2:50 pmBOS-BTS
16h 50m2 stops
Multiple Airlines Logo
10:15 pm - 1:55 pmBTS-BOS
21h 40m2 stops
$520Multiple Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
Multiple Airlines Logo
9:25 pm - 10:30 pmBOS-BTS
19h 05m1 stop
Multiple Airlines Logo
11:25 pm - 2:40 pmBTS-BOS
21h 15m1 stop
$705Multiple Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 21
Multiple Airlines Logo
7:05 pm - 4:05 pmBOS-BTS
15h 00m1 stop
Multiple Airlines Logo
9:00 pm - 9:15 pmBTS-BOS
30h 15m2 stops
$720Multiple Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 21
Multiple Airlines Logo
10:20 am - 2:50 pmBOS-BTS
22h 30m3 stops
Multiple Airlines Logo
10:15 pm - 3:25 pmBTS-BOS
23h 10m2 stops
$783Multiple Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
Multiple Airlines Logo
6:00 am - 10:30 pmBOS-BTS
34h 30m3 stops
Multiple Airlines Logo
10:15 pm - 8:05 pmBTS-BOS
27h 50m3 stops
$794Multiple Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
Multiple Airlines Logo
5:30 pm - 10:30 pmBOS-BTS
23h 00m1 stop
Multiple Airlines Logo
9:25 am - 6:45 pmBTS-BOS
15h 20m2 stops
$854Multiple Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
Multiple Airlines Logo
6:10 pm - 10:30 pmBOS-BTS
22h 20m2 stops
Multiple Airlines Logo
11:25 pm - 8:45 pmBTS-BOS
27h 20m3 stops
$860Multiple Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 21
Multiple Airlines Logo
5:30 pm - 10:30 pmBOS-BTS
23h 00m1 stop
Multiple Airlines Logo
5:25 pm - 6:45 pmBTS-BOS
31h 20m1 stop
$1,160Multiple Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6

momondo 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
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

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/16

4:45 pm-10:30 pm

2 stops23h 45m

Bratislava - M. R. Štefánik

Tue 10/21

11:25 pm-7:55 pm

2 stops26h 30m

$515

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/2

4:00 pm-2:50 pm

2 stops16h 50m

Bratislava - M. R. Štefánik

Mon 10/6

10:15 pm-1:55 pm

2 stops21h 40m

$520

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/16

9:25 pm-10:30 pm

1 stop19h 05m

Bratislava - M. R. Štefánik

Tue 10/21

11:25 pm-2:40 pm

1 stop21h 15m

$705

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/16

7:05 pm-4:05 pm

1 stop15h 00m

Bratislava - M. R. Štefánik

Tue 10/21

9:00 pm-9:15 pm

2 stops30h 15m

$720

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/2

10:20 am-2:50 pm

3 stops22h 30m

Bratislava - M. R. Štefánik

Mon 10/6

10:15 pm-3:25 pm

2 stops23h 10m

$783

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/2

6:00 am-10:30 pm

3 stops34h 30m

Bratislava - M. R. Štefánik

Mon 10/6

10:15 pm-8:05 pm

3 stops27h 50m

$794

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/2

5:30 pm-10:30 pm

1 stop23h 00m

Bratislava - M. R. Štefánik

Mon 10/6

9:25 am-6:45 pm

2 stops15h 20m

$854

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/16

6:10 pm-10:30 pm

2 stops22h 20m

Bratislava - M. R. Štefánik

Tue 10/21

11:25 pm-8:45 pm

3 stops27h 20m

$860

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/2

5:30 pm-10:30 pm

1 stop23h 00m

Bratislava - M. R. Štefánik

Mon 10/6

5:25 pm-6:45 pm

1 stop31h 20m

$1,160

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

Direct flights

None
There are no direct flights from Boston to Bratislava. There are no popular flight routes from Boston to Bratislava.
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  • 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 15h 00m, 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.

  • 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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