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Cheap flights from Boston to Slovakia from $324

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 10/15. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Boston to Slovakia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:25 pm - 12:40 pm
BOS
-
KSC
13h 15m
1 stop
Multiple Airlines Logo
8:50 pm - 9:05 pm
KSC
-
BOS
30h 15m
2 stops
$642Multiple Airlines
Sat, Sep 26 - Tue, Oct 20
Multiple Airlines Logo
9:15 pm - 6:00 pm
BOS
-
KSC
14h 45m
1 stop
Multiple Airlines Logo
8:50 pm - 9:05 pm
KSC
-
BOS
30h 15m
2 stops
$644Multiple Airlines
Tue, Sep 29 - Tue, Oct 20
Multiple Airlines Logo
5:25 pm - 12:40 pm
BOS
-
KSC
13h 15m
1 stop
Multiple Airlines Logo
8:50 pm - 9:05 pm
KSC
-
BOS
30h 15m
2 stops
$651Multiple Airlines
Sat, Oct 10 - Tue, Oct 20
Multiple Airlines Logo
5:25 pm - 12:40 pm
BOS
-
KSC
13h 15m
1 stop
Multiple Airlines Logo
8:40 pm - 9:05 pm
KSC
-
BOS
30h 25m
2 stops
$712Multiple Airlines
Sat, Sep 26 - Wed, Oct 21
Multiple Airlines Logo
9:15 pm - 6:00 pm
BOS
-
KSC
14h 45m
1 stop
Multiple Airlines Logo
8:40 pm - 9:05 pm
KSC
-
BOS
30h 25m
2 stops
$713Multiple Airlines
Tue, Sep 29 - Wed, Oct 21
Multiple Airlines Logo
5:25 pm - 12:40 pm
BOS
-
KSC
13h 15m
1 stop
Multiple Airlines Logo
8:40 pm - 9:05 pm
KSC
-
BOS
30h 25m
2 stops
$721Multiple Airlines
Sat, Oct 10 - Wed, Oct 21
Multiple Airlines Logo
5:25 pm - 12:40 pm
BOS
-
KSC
13h 15m
1 stop
Multiple Airlines Logo
8:50 pm - 9:45 pm
KSC
-
BOS
30h 55m
2 stops
$764Multiple Airlines
Sat, Oct 3 - Tue, Oct 13
SWISS Logo
9:40 pm - 2:05 pm
BOS
-
KSC
10h 25m
1 stop
SWISS Logo
2:40 pm - 8:20 pm
KSC
-
BOS
11h 40m
1 stop
$769SWISS
Tue, Oct 20 - Wed, Nov 4
Multiple Airlines Logo
10:50 pm - 1:55 pm
BOS
-
KSC
10h 05m
1 stop
Multiple Airlines Logo
5:20 am - 1:30 pm
KSC
-
BOS
14h 10m
1 stop
$771Multiple Airlines
Tue, Oct 27 - Tue, Nov 10
Multiple Airlines Logo
9:40 pm - 9:15 am
BOS
-
KSC
29h 35m
1 stop
Multiple Airlines Logo
2:40 pm - 7:02 pm
KSC
-
BOS
34h 22m
2 stops
$772Multiple Airlines
Wed, Oct 21 - Wed, Nov 4

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SWISS flights from Boston to Slovakia

Our best SWISS deals on Boston to Slovakia flight tickets
SWISS
Oct 20
BOS9:40 pmBoston Logan Intl
10h 25m
1 stop
KSC2:05 pmKošice Barca
Nov 4
KSC2:40 pmKošice Barca
11h 40m
1 stop
BOS8:20 pmBoston Logan Intl
$769
SWISS
Oct 18
BOS9:40 pmBoston Logan Intl
15h 15m
1 stop
KSC6:55 pmKošice Barca
Nov 6
KSC9:45 amKošice Barca
16h 35m
1 stop
BOS8:20 pmBoston Logan Intl
$774
SWISS
Nov 4
BOS9:50 pmBoston Logan Intl
29h 10m
1 stop
KSC9:00 amKošice Barca
Nov 20
KSC9:45 amKošice Barca
16h 35m
1 stop
BOS8:20 pmBoston Logan Intl
$804

Austrian Airlines flights from Boston to Slovakia

Our best Austrian Airlines deals on Boston to Slovakia flight tickets
Austrian Airlines
Oct 27
BOS3:35 pmBoston Logan Intl
17h 40m
2 stops
KSC2:15 pmKošice Barca
Nov 10
KSC5:20 amKošice Barca
14h 10m
1 stop
BOS1:30 pmBoston Logan Intl
$776
Austrian Airlines
Oct 20
BOS5:10 pmBoston Logan Intl
14h 50m
1 stop
KSC2:00 pmKošice Barca
Nov 5
KSC2:55 pmKošice Barca
28h 35m
1 stop
BOS1:30 pmBoston Logan Intl
$778
Austrian Airlines
Oct 25
BOS7:55 pmBoston Logan Intl
22h 20m
1 stop
KSC11:15 pmKošice Barca
Nov 12
KSC2:55 pmKošice Barca
28h 35m
1 stop
BOS1:30 pmBoston Logan Intl
$783

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 July 21, 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

Sat 9/26

5:25 pm-12:40 pm

1 stop13h 15m

Košice Barca

Tue 10/20

8:50 pm-9:05 pm

2 stops30h 15m

$642

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 9/29

9:15 pm-6:00 pm

1 stop14h 45m

Košice Barca

Tue 10/20

8:50 pm-9:05 pm

2 stops30h 15m

$644

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 10/10

5:25 pm-12:40 pm

1 stop13h 15m

Košice Barca

Tue 10/20

8:50 pm-9:05 pm

2 stops30h 15m

$651

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 9/26

5:25 pm-12:40 pm

1 stop13h 15m

Košice Barca

Wed 10/21

8:40 pm-9:05 pm

2 stops30h 25m

$712

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 9/29

9:15 pm-6:00 pm

1 stop14h 45m

Košice Barca

Wed 10/21

8:40 pm-9:05 pm

2 stops30h 25m

$713

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 10/10

5:25 pm-12:40 pm

1 stop13h 15m

Košice Barca

Wed 10/21

8:40 pm-9:05 pm

2 stops30h 25m

$721

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 10/3

5:25 pm-12:40 pm

1 stop13h 15m

Košice Barca

Tue 10/13

8:50 pm-9:45 pm

2 stops30h 55m

$764
Quickest round-trip

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 10/20

9:40 pm-2:05 pm

1 stop10h 25m

Košice Barca

Wed 11/4

2:40 pm-8:20 pm

1 stop11h 40m

$769

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 10/27

10:50 pm-1:55 pm

1 stop10h 05m

Košice Barca

Tue 11/10

5:20 am-1:30 pm

1 stop14h 10m

$771

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Wed 10/21

9:40 pm-9:15 am

1 stop29h 35m

Košice Barca

Wed 11/4

2:40 pm-7:02 pm

2 stops34h 22m

$772

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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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?

Austrian Airlines 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

11h 35m

Direct flights

None
The fastest flight from Boston to Slovakia takes 11h 35m
There are no direct flights from Boston to Slovakia. There are no popular flight routes from Boston to Slovakia.
Search flight deals

Frequently asked questions about flying from Boston to Slovakia

  • 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.

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