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$358+ Cheap flights from Boston (BOS) to Slovakia

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BTS
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
1 adult, Economy
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Cheap flight deals from Boston to Slovakia

Cheapest flights from Boston to Slovakia
Explore the most affordable flight options available from Boston to Slovakia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:55 pm
BOS
-
KSC
1 stop13h 20m
Austrian Airlines
Fri 11/205:20 am
KSC
-
BOS
1 stop14h 10m
Austrian Airlines
Deal found 5/15$811
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:55 pm
BOS
-
KSC
1 stop13h 20m
Austrian Airlines
Fri 11/275:20 am
KSC
-
BOS
2 stops18h 05m
Austrian Airlines
Deal found 5/15$821
This SWISS deal was found by Cheapflights users on 5/12. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:20 pm
BOS
-
KSC
1 stop19h 05m
SWISS
Wed 8/262:50 pm
KSC
-
BOS
1 stop11h 05m
SWISS
Deal found 5/12$825
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:50 pm
BOS
-
KSC
1 stop10h 05m
SWISS
Fri 11/209:45 am
KSC
-
BOS
1 stop16h 35m
SWISS
Deal found 5/15$831
This Travelocity deal was found by Cheapflights users on 5/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:50 pm
BOS
-
KSC
1 stop15h 00m
Multiple Airlines
Fri 11/209:45 am
KSC
-
BOS
2 stops16h 32m
Multiple Airlines
Deal found 5/15$834
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:40 pm
BOS
-
KSC
1 stop14h 45m
Multiple Airlines
Wed 8/265:25 am
KSC
-
BOS
2 stops18h 42m
Multiple Airlines
Deal found 5/12$837
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:55 pm
BOS
-
KSC
1 stop13h 20m
Austrian Airlines
Tue 11/175:20 am
KSC
-
BOS
1 stop14h 10m
Austrian Airlines
Deal found 5/15$840
This Justfly.com deal was found by Cheapflights users on 5/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:55 pm
BOS
-
KSC
1 stop13h 20m
Multiple Airlines
Thu 11/195:20 am
KSC
-
BOS
2 stops17h 37m
Multiple Airlines
Deal found 5/15$841
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:30 pm
BOS
-
KSC
2 stops18h 45m
Austrian Airlines
Tue 11/175:20 am
KSC
-
BOS
1 stop14h 10m
Austrian Airlines
Deal found 5/15$844
This Mytrip deal was found by Cheapflights users on 5/11. 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.
Tue 9/158:50 pm
BOS
-
BTS
2 stops16h 10m
Multiple Airlines
Fri 1/159:00 am
BTS
-
BOS
3 stops41h 00m
Multiple Airlines
Deal found 5/11$871
This Mytrip deal was found by Cheapflights users on 5/14. 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.
Fri 6/1912:30 pm
BOS
-
BTS
3 stops27h 30m
Multiple Airlines
Sat 6/2710:35 am
BTS
-
BOS
3 stops29h 15m
Multiple Airlines
Deal found 5/14$1,063

Find flight deals from Boston to Slovakia

Keep the following information in mind while searching for Boston to Slovakia flight deals. Data was last updated May 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$811
(Cheapflightsfares)

One-way from

$358
(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 Slovakia
Search Deals
One-way flight from Boston Logan Intl to Slovakia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Slovakia 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 May 16, 2026.
Use the filters below to find and compare flights from Boston to Slovakia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Tue 9/15

8:50 pm-7:00 pm

2 stops16h 10m

Bratislava - M. R. Štefánik

Fri 1/15

9:00 am-8:00 pm

3 stops41h 00m

$871

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 7/30

5:10 pm-2:00 pm

1 stop14h 50m

Košice Barca

Tue 9/1

2:45 pm-1:50 pm

1 stop29h 05m

$1,035

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Fri 6/19

12:30 pm-10:00 pm

3 stops27h 30m

Bratislava - M. R. Štefánik

Sat 6/27

10:35 am-9:50 am

3 stops29h 15m

$1,063

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 8/1

5:10 pm-2:10 pm

1 stop15h 00m

Košice Barca

Tue 9/1

5:25 am-5:40 pm

2 stops18h 15m

$1,066

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 8/1

5:10 pm-2:10 pm

1 stop15h 00m

Košice Barca

Tue 9/1

2:45 pm-1:50 pm

1 stop29h 05m

$1,094

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 7/30

5:10 pm-2:00 pm

1 stop14h 50m

Košice Barca

Sun 8/30

5:25 am-5:40 pm

2 stops18h 15m

$1,126

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 8/1

8:05 pm-2:10 pm

2 stops12h 05m

Košice Barca

Sun 8/30

5:25 am-5:40 pm

2 stops18h 15m

$1,150

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Fri 7/31

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Sun 8/30

5:25 am-5:40 pm

2 stops18h 15m

$1,150

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 8/1

8:05 pm-2:10 pm

2 stops12h 05m

Košice Barca

Mon 8/31

5:25 am-5:40 pm

2 stops18h 15m

$1,150

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 7/30

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Sun 8/30

5:25 am-5:40 pm

2 stops18h 15m

$1,150

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight from Boston to Slovakia

Have a flexible travel schedule? Discover the best time to fly to Slovakia 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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Slovakia
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly from for flights from Boston to Slovakia?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Slovakia from Boston.

  • How long is the flight from Boston to Slovakia?

    For as low as $1,035, Austrian Airlines can have you in Slovakia from Boston in 14h 50m. Airlines will cover a distance of 4203 mi.

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

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

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

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

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

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

See more FAQs

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