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$381+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BTS
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 February 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Mon 5/410:50 pm
BOS
-
BTS
1 stop34h 05m
Multiple Airlines
Wed 5/139:10 am
BTS
-
BOS
1 stop17h 55m
Multiple Airlines
Deal found 2/8$724
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:05 pm
BOS
-
KSC
2 stops35h 55m
Lufthansa
Wed 8/125:25 am
KSC
-
BOS
2 stops42h 15m
Lufthansa
Deal found 2/11$921
This Lufthansa deal was found by Cheapflights users on 2/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:10 pm
BOS
-
KSC
1 stop14h 50m
Multiple Airlines
Thu 8/135:25 am
KSC
-
BOS
2 stops18h 15m
Multiple Airlines
Deal found 2/11$925
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:40 pm
BOS
-
KSC
1 stop10h 25m
SWISS
Wed 8/122:50 pm
KSC
-
BOS
1 stop30h 20m
SWISS
Deal found 2/11$952
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:05 pm
BOS
-
KSC
2 stops11h 55m
Lufthansa
Wed 8/122:45 pm
KSC
-
BOS
2 stops32h 55m
Lufthansa
Deal found 2/11$963
This Lufthansa deal was found by Cheapflights users on 2/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:05 pm
BOS
-
KSC
2 stops11h 55m
Lufthansa
Thu 8/135:25 am
KSC
-
BOS
2 stops18h 15m
Lufthansa
Deal found 2/11$965
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:05 pm
BOS
-
KSC
2 stops11h 55m
Lufthansa
Fri 8/145:25 am
KSC
-
BOS
2 stops18h 15m
Lufthansa
Deal found 2/11$981
This SWISS deal was found by Cheapflights users on 2/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:20 pm
BOS
-
KSC
1 stop9h 55m
SWISS
Wed 8/122:50 pm
KSC
-
BOS
1 stop30h 20m
SWISS
Deal found 2/11$990
This Lufthansa deal was found by Cheapflights users on 2/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:10 pm
BOS
-
KSC
1 stop14h 50m
Multiple Airlines
Thu 8/135:25 am
KSC
-
BOS
2 stops18h 15m
Multiple Airlines
Deal found 2/11$1,009
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:20 pm
BOS
-
KSC
1 stop9h 55m
SWISS
Fri 8/1410:00 am
KSC
-
BOS
1 stop15h 55m
SWISS
Deal found 2/11$1,012
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:45 pm
BOS
-
KSC
2 stops14h 15m
Multiple Airlines
Wed 8/122:50 pm
KSC
-
BOS
1 stop30h 20m
Multiple Airlines
Deal found 2/11$1,038
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:05 pm
BOS
-
KSC
2 stops11h 55m
Lufthansa
Sat 8/155:25 am
KSC
-
BOS
2 stops18h 15m
Lufthansa
Deal found 2/11$1,041

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$921
(KAYAK)

One-way from

$381
(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 February 11, 2026.
Use the filters below to find and compare flights from Boston to Slovakia that are best for you.

Fly from

Boston

Fly to

Slovakia

Route

Depart

Return

Price

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Mon 5/4

10:50 pm-2:55 pm

1 stop34h 05m

Bratislava - M. R. Štefánik

Wed 5/13

9:10 am-9:05 pm

1 stop17h 55m

$724

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 7/19

8:05 pm-11:20 pm

2 stops21h 15m

Košice Barca

Wed 8/12

5:25 am-5:40 pm

2 stops42h 15m

$921

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 7/20

8:05 pm-2:00 pm

2 stops35h 55m

Košice Barca

Fri 8/14

5:25 am-5:40 pm

2 stops18h 15m

$921

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 7/16

5:10 pm-2:00 pm

1 stop14h 50m

Košice Barca

Thu 8/13

5:25 am-5:40 pm

2 stops18h 15m

$925

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 7/20

5:20 pm-6:25 pm

1 stop19h 05m

Košice Barca

Wed 8/12

2:50 pm-3:10 pm

1 stop30h 20m

$952

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 7/19

9:40 pm-6:55 pm

1 stop15h 15m

Košice Barca

Wed 8/12

2:50 pm-3:10 pm

1 stop30h 20m

$952

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Fri 7/17

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Thu 8/13

5:25 am-5:40 pm

2 stops18h 15m

$965

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 7/16

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Fri 8/14

5:25 am-5:40 pm

2 stops18h 15m

$981

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 7/20

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Sat 8/15

5:25 am-5:40 pm

2 stops18h 15m

$981

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 7/19

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Sat 8/15

5:25 am-5:40 pm

2 stops18h 15m

$981

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 15 results
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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 $952, Lufthansa can have you in Slovakia from Boston in 19h 05m. Airlines will cover a distance of 4203 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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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