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$207+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BTS
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
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 March 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Sat 5/210:50 pm
BOS
-
BTS
1 stop29h 40m
Multiple Airlines
Wed 5/610:35 am
BTS
-
BOS
2 stops16h 30m
Multiple Airlines
Deal found 3/13$657
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:50 pm
BOS
-
BTS
2 stops19h 10m
Multiple Airlines
Sat 5/99:10 am
BTS
-
BOS
2 stops18h 35m
Multiple Airlines
Deal found 3/12$688
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1110:50 pm
BOS
-
BTS
1 stop29h 40m
Multiple Airlines
Thu 4/165:45 pm
BTS
-
BOS
1 stop33h 20m
Multiple Airlines
Deal found 3/11$755
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:50 pm
BOS
-
BTS
1 stop33h 05m
Multiple Airlines
Sat 9/129:10 am
BTS
-
BOS
1 stop18h 05m
Multiple Airlines
Deal found 3/12$784
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:30 pm
BOS
-
KSC
1 stop12h 30m
Multiple Airlines
Tue 5/58:50 pm
KSC
-
BOS
2 stops54h 15m
Multiple Airlines
Deal found 3/14$791
This KAYAK deal was found by Cheapflights users on 3/15. 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 7/285:20 pm
BOS
-
KSC
1 stop14h 45m
SWISS
Wed 9/22:50 pm
KSC
-
BOS
1 stop11h 05m
SWISS
Deal found 3/15$855
This KAYAK deal was found by Cheapflights users on 3/13. 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 7/289:40 pm
BOS
-
KSC
1 stop10h 25m
SWISS
Mon 8/317:40 pm
KSC
-
BOS
1 stop25h 30m
SWISS
Deal found 3/13$856
This Mytrip deal was found by Cheapflights users on 3/11. 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 3/248:50 pm
BOS
-
BTS
2 stops20h 30m
Multiple Airlines
Tue 3/319:00 pm
BTS
-
BOS
2 stops29h 20m
Multiple Airlines
Deal found 3/11$867
This KAYAK deal was found by Cheapflights users on 3/11. 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.
Wed 7/292:15 pm
BOS
-
KSC
2 stops17h 45m
Austrian Airlines
Fri 8/285:25 am
KSC
-
BOS
1 stop14h 25m
Austrian Airlines
Deal found 3/11$869
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:15 pm
BOS
-
KSC
1 stop14h 45m
Multiple Airlines
Mon 8/317:35 am
KSC
-
BOS
2 stops19h 40m
Multiple Airlines
Deal found 3/11$876
This KAYAK deal was found by Cheapflights users on 3/11. 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.
Wed 7/292:15 pm
BOS
-
KSC
2 stops17h 45m
Austrian Airlines
Wed 9/25:25 am
KSC
-
BOS
2 stops18h 30m
Austrian Airlines
Deal found 3/11$879
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:05 pm
BOS
-
KSC
2 stops17h 35m
Multiple Airlines
Sun 5/31:05 pm
KSC
-
BOS
1 stop14h 55m
Multiple Airlines
Deal found 3/12$905

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 March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$657
(Kiwi.com)

One-way from

$207
(Trip.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 March 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

Sat 5/2

10:50 pm-10:30 am

1 stop29h 40m

Bratislava - M. R. Štefánik

Wed 5/6

10:35 am-9:05 pm

2 stops16h 30m

$657

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sat 4/11

10:50 pm-10:30 am

1 stop29h 40m

Bratislava - M. R. Štefánik

Thu 4/16

5:45 pm-9:05 pm

1 stop33h 20m

$755

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 4/28

11:30 pm-6:00 pm

1 stop12h 30m

Košice Barca

Tue 5/5

8:50 pm-9:05 pm

2 stops54h 15m

$791

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

$914

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 8/1

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Tue 9/1

5:25 am-5:55 pm

2 stops18h 30m

$935

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Sun 4/12

8:50 pm-7:00 pm

2 stops16h 10m

Bratislava - M. R. Štefánik

Thu 4/16

9:10 am-9:05 pm

1 stop17h 55m

$953

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 7/30

5:10 pm-2:00 pm

1 stop14h 50m

Košice Barca

Sun 8/30

2:45 pm-1:50 pm

1 stop29h 05m

$974

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-8:10 pm

2 stops20h 45m

$993

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 6/4

10:50 pm-2:55 pm

1 stop34h 05m

Bratislava - M. R. Štefánik

Thu 6/11

9:10 am-9:05 pm

1 stop17h 55m

$1,002
Quickest round-trip

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 8/1

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Mon 8/31

5:25 am-3:40 pm

2 stops16h 15m

$1,004

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 21 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 $914, 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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