HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Slovakia

$320+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BTS
Aug 4 — Aug 111
Tue 8/4
Tue 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Slovakia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 5, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/3. 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 10/35:25 pm
BOS
-
KSC
1 stop13h 15m
Multiple Airlines
Tue 10/208:50 pm
KSC
-
BOS
2 stops30h 15m
Multiple Airlines
Deal found 7/3$780
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 10/35:25 pm
BOS
-
KSC
1 stop13h 15m
Multiple Airlines
Mon 10/198:25 pm
KSC
-
BOS
2 stops28h 25m
Multiple Airlines
Deal found 7/3$781
This FlightHub deal was found by Cheapflights users on 7/4. 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.
Wed 8/193:35 pm
BOS
-
KSC
2 stops16h 25m
Multiple Airlines
Mon 8/242:45 pm
KSC
-
BOS
2 stops32h 55m
Multiple Airlines
Deal found 7/4$800
This SmartFares deal was found by Cheapflights users on 7/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:40 pm
BOS
-
KSC
1 stop29h 35m
Multiple Airlines
Wed 10/215:25 am
KSC
-
BOS
2 stops18h 39m
Multiple Airlines
Deal found 7/4$812
This Gotogate deal was found by Cheapflights users on 7/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:40 pm
BOS
-
KSC
1 stop29h 35m
SWISS
Wed 10/212:50 pm
KSC
-
BOS
1 stop11h 05m
SWISS
Deal found 7/4$822
This Mytrip deal was found by Cheapflights users on 7/4. 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.
Wed 10/1411:15 pm
BOS
-
BTS
3 stops19h 55m
Multiple Airlines
Wed 10/212:45 pm
BTS
-
BOS
2 stops30h 00m
Multiple Airlines
Deal found 7/4$837
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 10/35:25 pm
BOS
-
KSC
1 stop13h 15m
Multiple Airlines
Fri 10/168:40 pm
KSC
-
BOS
2 stops28h 10m
Multiple Airlines
Deal found 7/3$857
This KAYAK deal was found by Cheapflights users on 7/3. 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 10/79:40 pm
BOS
-
KSC
1 stop29h 35m
SWISS
Wed 10/212:50 pm
KSC
-
BOS
1 stop11h 05m
SWISS
Deal found 7/3$859
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 10/35:25 pm
BOS
-
KSC
1 stop13h 15m
Multiple Airlines
Wed 10/218:40 pm
KSC
-
BOS
2 stops30h 25m
Multiple Airlines
Deal found 7/3$860
This KAYAK deal was found by Cheapflights users on 7/3. 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 10/712:36 pm
BOS
-
KSC
2 stops19h 24m
Austrian Airlines
Thu 10/222:45 pm
KSC
-
BOS
1 stop29h 05m
Austrian Airlines
Deal found 7/3$872
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 10/69:15 pm
BOS
-
KSC
1 stop14h 45m
Multiple Airlines
Fri 10/168:40 pm
KSC
-
BOS
2 stops28h 10m
Multiple Airlines
Deal found 7/3$877
This Mytrip deal was found by Cheapflights users on 7/1. 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 7/315:45 am
BOS
-
BTS
3 stops27h 05m
Multiple Airlines
Fri 8/79:00 am
BTS
-
BOS
2 stops16h 55m
Multiple Airlines
Deal found 7/1$1,118

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 July 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$780
(Kiwi.com)

One-way from

$320
(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 July 5, 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

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Wed 10/14

9:40 pm-9:15 am

1 stop29h 35m

Košice Barca

Wed 10/21

5:25 am-6:04 pm

2 stops18h 39m

$812

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Wed 10/14

9:40 pm-9:15 am

1 stop29h 35m

Košice Barca

Wed 10/21

2:50 pm-7:55 pm

1 stop11h 05m

$822

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Wed 10/14

11:15 pm-1:10 am

3 stops19h 55m

Bratislava - M. R. Štefánik

Wed 10/21

2:45 pm-2:45 pm

2 stops30h 00m

$837

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 10/6

9:40 pm-2:05 pm

1 stop10h 25m

Košice Barca

Mon 10/19

7:40 pm-7:55 pm

1 stop30h 15m

$939

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 10/4

9:40 pm-6:55 pm

1 stop15h 15m

Košice Barca

Mon 10/19

7:40 pm-3:10 pm

1 stop25h 30m

$939

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 10/8

9:40 pm-8:45 am

1 stop29h 05m

Košice Barca

Sat 10/17

9:55 am-7:55 pm

1 stop16h 00m

$999
Quickest round-trip

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 10/4

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Wed 10/21

5:25 am-5:40 pm

2 stops18h 15m

$1,005

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 10/6

2:15 pm-2:00 pm

2 stops17h 45m

Košice Barca

Sun 10/18

2:45 pm-1:50 pm

1 stop29h 05m

$1,022

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Wed 8/19

9:40 pm-2:30 pm

3 stops34h 50m

Košice Barca

Mon 8/24

12:30 pm-6:07 pm

3 stops35h 37m

$1,025

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 10/6

8:05 pm-2:00 pm

2 stops11h 55m

Košice Barca

Sun 10/18

5:25 am-5:40 pm

2 stops18h 15m

$1,070

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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 $822, SWISS can have you in Slovakia from Boston in 29h 35m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.