Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Boston to Slovakia from $297

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 Slovakia departing on 2/28. 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
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Boston to Slovakia

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
5:20 pm - 2:05 pm
BOS
-
KSC
14h 45m
1 stop
SWISS Logo
7:40 pm - 3:10 pm
KSC
-
BOS
25h 30m
1 stop
$571SWISS
Tue, Apr 14 - Mon, Apr 27
Austrian Airlines Logo
5:10 pm - 11:20 pm
BOS
-
KSC
24h 10m
1 stop
Austrian Airlines Logo
2:45 pm - 1:50 pm
KSC
-
BOS
29h 05m
1 stop
$580Austrian Airlines
Tue, Apr 14 - Tue, Apr 28
Austrian Airlines Logo
5:10 pm - 11:20 pm
BOS
-
KSC
24h 10m
1 stop
Austrian Airlines Logo
2:45 pm - 1:50 pm
KSC
-
BOS
29h 05m
1 stop
$581Austrian Airlines
Tue, Apr 14 - Tue, Apr 28
Austrian Airlines Logo
11:17 am - 2:00 pm
BOS
-
KSC
20h 43m
2 stops
Austrian Airlines Logo
2:45 pm - 1:50 pm
KSC
-
BOS
29h 05m
1 stop
$585Austrian Airlines
Mon, Apr 20 - Tue, Apr 28
Austrian Airlines Logo
5:10 pm - 2:00 pm
BOS
-
KSC
14h 50m
1 stop
Austrian Airlines Logo
5:25 am - 6:19 pm
KSC
-
BOS
18h 54m
2 stops
$591Austrian Airlines
Tue, Apr 14 - Tue, Apr 28
Austrian Airlines Logo
11:17 am - 2:00 pm
BOS
-
KSC
20h 43m
2 stops
Austrian Airlines Logo
2:45 pm - 6:19 pm
KSC
-
BOS
33h 34m
2 stops
$595Austrian Airlines
Mon, Apr 20 - Tue, Apr 28
Austrian Airlines Logo
11:17 am - 2:00 pm
BOS
-
KSC
20h 43m
2 stops
Austrian Airlines Logo
2:45 pm - 6:19 pm
KSC
-
BOS
33h 34m
2 stops
$596Austrian Airlines
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
1:00 pm - 2:00 pm
BOS
-
KSC
19h 00m
2 stops
Multiple Airlines Logo
7:40 pm - 3:10 pm
KSC
-
BOS
25h 30m
1 stop
$637Multiple Airlines
Thu, Apr 16 - Mon, Apr 27
Lufthansa Logo
8:05 pm - 11:20 pm
BOS
-
KSC
21h 15m
2 stops
Lufthansa Logo
2:45 pm - 5:40 pm
KSC
-
BOS
32h 55m
2 stops
$640Lufthansa
Tue, Apr 14 - Tue, Apr 28
Multiple Airlines Logo
1:00 pm - 2:00 pm
BOS
-
KSC
19h 00m
2 stops
Multiple Airlines Logo
2:45 pm - 6:19 pm
KSC
-
BOS
33h 34m
2 stops
$649Multiple Airlines
Thu, Apr 16 - Mon, Apr 27

SWISS flights from Boston to Slovakia

Our best SWISS deals on Boston to Slovakia flight tickets
SWISS
Apr 14
BOS5:20 pmBoston Logan Intl
14h 45m
1 stop
KSC2:05 pmKošice Barca
Apr 27
KSC7:40 pmKošice Barca
25h 30m
1 stop
BOS3:10 pmBoston Logan Intl
$571
SWISS
Apr 14
BOS9:40 pmBoston Logan Intl
10h 25m
1 stop
KSC2:05 pmKošice Barca
Apr 24
KSC10:00 amKošice Barca
15h 55m
1 stop
BOS7:55 pmBoston Logan Intl
$846
SWISS
Apr 15
BOS9:40 pmBoston Logan Intl
29h 35m
1 stop
KSC9:15 amKošice Barca
Apr 29
KSC2:50 pmKošice Barca
30h 20m
1 stop
BOS3:10 pmBoston Logan Intl
$946

Austrian Airlines flights from Boston to Slovakia

Our best Austrian Airlines deals on Boston to Slovakia flight tickets
Austrian Airlines
Apr 14
BOS5:10 pmBoston Logan Intl
24h 10m
1 stop
KSC11:20 pmKošice Barca
Apr 28
KSC2:45 pmKošice Barca
29h 05m
1 stop
BOS1:50 pmBoston Logan Intl
$580
Austrian Airlines
Apr 14
BOS5:10 pmBoston Logan Intl
24h 10m
1 stop
KSC11:20 pmKošice Barca
Apr 28
KSC2:45 pmKošice Barca
29h 05m
1 stop
BOS1:50 pmBoston Logan Intl
$581
Austrian Airlines
Apr 20
BOS11:17 amBoston Logan Intl
20h 43m
2 stops
KSC2:00 pmKošice Barca
Apr 28
KSC2:45 pmKošice Barca
29h 05m
1 stop
BOS1:50 pmBoston Logan Intl
$585

momondo 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, momondo users made 832,500 searches. Data last updated January 29, 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

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 4/14

5:20 pm-2:05 pm

1 stop14h 45m

Košice Barca

Mon 4/27

7:40 pm-3:10 pm

1 stop25h 30m

$571

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 4/14

5:10 pm-11:20 pm

1 stop24h 10m

Košice Barca

Tue 4/28

2:45 pm-1:50 pm

1 stop29h 05m

$580

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 4/14

5:10 pm-11:20 pm

1 stop24h 10m

Košice Barca

Tue 4/28

2:45 pm-1:50 pm

1 stop29h 05m

$581

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 4/20

11:17 am-2:00 pm

2 stops20h 43m

Košice Barca

Tue 4/28

2:45 pm-1:50 pm

1 stop29h 05m

$585

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 4/14

5:10 pm-2:00 pm

1 stop14h 50m

Košice Barca

Tue 4/28

5:25 am-6:19 pm

2 stops18h 54m

$591

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 4/20

11:17 am-2:00 pm

2 stops20h 43m

Košice Barca

Tue 4/28

2:45 pm-6:19 pm

2 stops33h 34m

$595

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 4/20

11:17 am-2:00 pm

2 stops20h 43m

Košice Barca

Mon 4/27

2:45 pm-6:19 pm

2 stops33h 34m

$596

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 4/16

1:00 pm-2:00 pm

2 stops19h 00m

Košice Barca

Mon 4/27

7:40 pm-3:10 pm

1 stop25h 30m

$637

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 4/14

8:05 pm-11:20 pm

2 stops21h 15m

Košice Barca

Tue 4/28

2:45 pm-5:40 pm

2 stops32h 55m

$640

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Thu 4/16

1:00 pm-2:00 pm

2 stops19h 00m

Košice Barca

Mon 4/27

2:45 pm-6:19 pm

2 stops33h 34m

$649

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Slovakia from

How to get the cheapest flight ticket from Boston to Slovakia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Boston Logan Intl to Slovakia?

SWISS is the most popular carrier operating from Boston Logan Intl to Slovakia

Cheap Boston to Slovakia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Slovakia

Fastest flight time

12h 40m

Direct flights

None
The fastest flight from Boston to Slovakia takes 12h 40m
There are no direct flights from Boston to Slovakia. There are no popular flight routes from Boston to Slovakia.
Search flight deals

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Slovakia?

    Prices for flights from Boston Logan Intl Airport to Slovakia are updated daily.

  • How old do you have to be to fly from Boston Logan Intl Airport to Slovakia?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Slovakia.

  • What documentation or ID do you need to fly to Slovakia?

    The necessary travel and health documents for your Slovakia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Slovakia?

Finding the right flight to Slovakia from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Slovakia quick and easy, saving you time and money.

Can I find flights from Boston to Slovakia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Slovakia from Boston with this policy.

How can momondo help me find flights from Boston to Slovakia?

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 Slovakia from Boston.

I’m not ready to book a flight from Boston to Slovakia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Slovakia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Slovakia and let you know when they change.

An easier way to manage your Slovakia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 2/28
Sat 3/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Slovakia

Popular cities in Slovakia

Popular flights according to clicks in the last 7 days on momondo
Flights to Bratislavafrom $499
Flights to Košicefrom $505
Flights to Popradfrom $610