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Cheap flights from Boston to Bratislava from $299

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 Bratislava departing on 8/27. 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
11:35 pm - 2:50 pm
BOS
-
BTS
33h 15m
1 stop
Multiple Airlines Logo
9:00 am - 9:45 pm
BTS
-
BOS
18h 45m
1 stop
$639Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
7:50 pm - 9:55 pm
BOS
-
BTS
20h 05m
3 stops
Multiple Airlines Logo
7:05 am - 7:55 pm
BTS
-
BOS
42h 50m
3 stops
$810Multiple Airlines
Sun, Nov 8 - Sat, Nov 14
Multiple Airlines Logo
10:40 am - 7:00 pm
BOS
-
BTS
26h 20m
3 stops
Multiple Airlines Logo
6:55 pm - 8:20 pm
BTS
-
BOS
31h 25m
2 stops
$814Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
10:40 am - 7:00 pm
BOS
-
BTS
26h 20m
3 stops
Multiple Airlines Logo
6:55 pm - 8:20 pm
BTS
-
BOS
31h 25m
3 stops
$822Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
7:50 pm - 9:55 pm
BOS
-
BTS
20h 05m
3 stops
Multiple Airlines Logo
6:25 am - 7:55 pm
BTS
-
BOS
19h 30m
2 stops
$834Multiple Airlines
Sun, Nov 8 - Sat, Nov 14
Multiple Airlines Logo
8:50 pm - 7:00 pm
BOS
-
BTS
16h 10m
2 stops
Multiple Airlines Logo
6:55 pm - 8:20 pm
BTS
-
BOS
31h 25m
2 stops
$867Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
9:20 pm - 5:45 pm
BOS
-
BTS
14h 25m
1 stop
Multiple Airlines Logo
2:10 pm - 1:50 pm
BTS
-
BOS
29h 40m
1 stop
$868Multiple Airlines
Sun, Nov 8 - Sat, Nov 14
Multiple Airlines Logo
11:35 pm - 2:50 pm
BOS
-
BTS
33h 15m
1 stop
Multiple Airlines Logo
9:00 am - 8:20 pm
BTS
-
BOS
17h 20m
2 stops
$877Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
5:25 pm - 8:35 pm
BOS
-
BTS
21h 10m
1 stop
Multiple Airlines Logo
11:15 pm - 6:35 pm
BTS
-
BOS
25h 20m
2 stops
$889Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
7:50 pm - 5:45 pm
BOS
-
BTS
15h 55m
2 stops
Multiple Airlines Logo
6:25 am - 7:55 pm
BTS
-
BOS
19h 30m
2 stops
$910Multiple Airlines
Sun, Nov 8 - Sat, Nov 14

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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 June 29, 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

Sun 10/11

11:35 pm-2:50 pm

1 stop33h 15m

Bratislava - M. R. Štefánik

Sun 10/18

9:00 am-9:45 pm

1 stop18h 45m

$639

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 11/8

7:50 pm-9:55 pm

3 stops20h 05m

Bratislava - M. R. Štefánik

Sat 11/14

7:05 am-7:55 pm

3 stops42h 50m

$810

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 10/11

10:40 am-7:00 pm

3 stops26h 20m

Bratislava - M. R. Štefánik

Sun 10/18

6:55 pm-8:20 pm

2 stops31h 25m

$814

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 10/11

10:40 am-7:00 pm

3 stops26h 20m

Bratislava - M. R. Štefánik

Sun 10/18

6:55 pm-8:20 pm

3 stops31h 25m

$822

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 11/8

7:50 pm-9:55 pm

3 stops20h 05m

Bratislava - M. R. Štefánik

Sat 11/14

6:25 am-7:55 pm

2 stops19h 30m

$834

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 10/11

8:50 pm-7:00 pm

2 stops16h 10m

Bratislava - M. R. Štefánik

Sun 10/18

6:55 pm-8:20 pm

2 stops31h 25m

$867

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 11/8

9:20 pm-5:45 pm

1 stop14h 25m

Bratislava - M. R. Štefánik

Sat 11/14

2:10 pm-1:50 pm

1 stop29h 40m

$868

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 10/11

11:35 pm-2:50 pm

1 stop33h 15m

Bratislava - M. R. Štefánik

Sun 10/18

9:00 am-8:20 pm

2 stops17h 20m

$877

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Mon 8/17

5:25 pm-8:35 pm

1 stop21h 10m

Bratislava - M. R. Štefánik

Mon 8/24

11:15 pm-6:35 pm

2 stops25h 20m

$889
Quickest round-trip

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 11/8

7:50 pm-5:45 pm

2 stops15h 55m

Bratislava - M. R. Štefánik

Sat 11/14

6:25 am-7:55 pm

2 stops19h 30m

$910

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

20h 05m

Direct flights

None
The fastest flight from Boston to Bratislava takes 20h 05m
There are no direct flights from Boston to Bratislava. There are no popular flight routes from Boston to Bratislava.
Search flight deals

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 20h 05m, 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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