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Cheap flights from Boston to Slovakia from $347

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 12/10. 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

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Find the cheapest flights from Boston to Slovakia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
1:55 pm - 2:15 pmBOS-KSC
18h 20m2 stops
Austrian Airlines Logo
5:20 am - 2:05 pmKSC-BOS
14h 45m1 stop
$522Austrian Airlines
Find Deal
Mon, Feb 16 - Fri, Feb 27
Austrian Airlines Logo
6:25 pm - 2:15 pmBOS-KSC
13h 50m1 stop
Austrian Airlines Logo
5:20 am - 7:08 pmKSC-BOS
19h 48m2 stops
$528Austrian Airlines
Find Deal
Sun, Feb 15 - Fri, Feb 27
Austrian Airlines Logo
6:25 pm - 2:15 pmBOS-KSC
13h 50m1 stop
Austrian Airlines Logo
5:20 am - 2:05 pmKSC-BOS
14h 45m1 stop
$538Austrian Airlines
Find Deal
Sun, Feb 15 - Fri, Feb 27
Austrian Airlines Logo
6:25 pm - 2:15 pmBOS-KSC
13h 50m1 stop
Austrian Airlines Logo
2:55 pm - 5:21 pmKSC-BOS
32h 26m2 stops
$564Austrian Airlines
Find Deal
Sun, Feb 15 - Sun, Mar 1
Multiple Airlines Logo
5:10 pm - 10:20 amBOS-KSC
11h 10m1 stop
Multiple Airlines Logo
12:30 pm - 8:55 pmKSC-BOS
38h 25m2 stops
$567Multiple Airlines
Find Deal
Sat, Jan 17 - Sat, Jan 24
Austrian Airlines Logo
6:25 pm - 2:15 pmBOS-KSC
13h 50m1 stop
Austrian Airlines Logo
2:55 pm - 2:05 pmKSC-BOS
29h 10m1 stop
$569Austrian Airlines
Find Deal
Sun, Feb 15 - Sat, Feb 28
Austrian Airlines Logo
1:55 pm - 2:15 pmBOS-KSC
18h 20m2 stops
Austrian Airlines Logo
2:55 pm - 2:05 pmKSC-BOS
29h 10m1 stop
$572Austrian Airlines
Find Deal
Mon, Feb 16 - Sat, Feb 28
Multiple Airlines Logo
6:15 am - 6:50 pmBOS-KSC
30h 35m2 stops
Multiple Airlines Logo
5:20 am - 2:05 pmKSC-BOS
14h 45m1 stop
$578Multiple Airlines
Find Deal
Sun, Feb 15 - Fri, Feb 27
Austrian Airlines Logo
6:25 pm - 2:15 pmBOS-KSC
13h 50m1 stop
Austrian Airlines Logo
5:20 am - 7:08 pmKSC-BOS
19h 48m2 stops
$581Austrian Airlines
Find Deal
Tue, Feb 17 - Fri, Feb 27
Multiple Airlines Logo
5:30 am - 2:15 pmBOS-KSC
26h 45m2 stops
Multiple Airlines Logo
5:20 am - 2:05 pmKSC-BOS
14h 45m1 stop
$583Multiple Airlines
Find Deal
Mon, Feb 16 - Fri, Feb 27

Austrian Airlines flights from Boston to Slovakia

Our best Austrian Airlines deals on Boston to Slovakia flight tickets
Austrian Airlines
Feb 16
BOS1:55 pmBoston Logan Intl
18h 20m
2 stops
KSC2:15 pmKošice Barca
Feb 27
KSC5:20 amKošice Barca
14h 45m
1 stop
BOS2:05 pmBoston Logan Intl
$522
Find similar
Austrian Airlines
Feb 15
BOS6:25 pmBoston Logan Intl
13h 50m
1 stop
KSC2:15 pmKošice Barca
Feb 27
KSC5:20 amKošice Barca
19h 48m
2 stops
BOS7:08 pmBoston Logan Intl
$528
Find similar
Austrian Airlines
Feb 15
BOS6:25 pmBoston Logan Intl
13h 50m
1 stop
KSC2:15 pmKošice Barca
Feb 27
KSC5:20 amKošice Barca
14h 45m
1 stop
BOS2:05 pmBoston Logan Intl
$538
Find similar

Lufthansa flights from Boston to Slovakia

Our best Lufthansa deals on Boston to Slovakia flight tickets
Lufthansa
Feb 15
BOS8:40 pmBoston Logan Intl
11h 35m
2 stops
KSC2:15 pmKošice Barca
Mar 1
KSC2:55 pmKošice Barca
52h 15m
2 stops
BOS1:10 pmBoston Logan Intl
$666
Find similar
Lufthansa
Apr 18
BOS8:05 pmBoston Logan Intl
21h 25m
2 stops
KSC11:30 pmKošice Barca
Apr 26
KSC2:45 pmKošice Barca
31h 10m
2 stops
BOS3:55 pmBoston Logan Intl
$746
Find similar
Lufthansa
Apr 16
BOS8:05 pmBoston Logan Intl
21h 25m
2 stops
KSC11:30 pmKošice Barca
Apr 26
KSC2:45 pmKošice Barca
31h 10m
2 stops
BOS3:55 pmBoston Logan Intl
$921
Find similar

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 December 3, 2025.
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

Mon 2/16

1:55 pm-2:15 pm

2 stops18h 20m

Košice Barca

Fri 2/27

5:20 am-2:05 pm

1 stop14h 45m

$522

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 2/15

6:25 pm-2:15 pm

1 stop13h 50m

Košice Barca

Fri 2/27

5:20 am-7:08 pm

2 stops19h 48m

$528

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 2/15

6:25 pm-2:15 pm

1 stop13h 50m

Košice Barca

Fri 2/27

5:20 am-2:05 pm

1 stop14h 45m

$538

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 2/15

6:25 pm-2:15 pm

1 stop13h 50m

Košice Barca

Sun 3/1

2:55 pm-5:21 pm

2 stops32h 26m

$564

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sat 1/17

5:10 pm-10:20 am

1 stop11h 10m

Košice Barca

Sat 1/24

12:30 pm-8:55 pm

2 stops38h 25m

$567

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 2/15

6:25 pm-2:15 pm

1 stop13h 50m

Košice Barca

Sat 2/28

2:55 pm-2:05 pm

1 stop29h 10m

$569

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 2/16

1:55 pm-2:15 pm

2 stops18h 20m

Košice Barca

Sat 2/28

2:55 pm-2:05 pm

1 stop29h 10m

$572

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 2/15

6:15 am-6:50 pm

2 stops30h 35m

Košice Barca

Fri 2/27

5:20 am-2:05 pm

1 stop14h 45m

$578

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 2/17

6:25 pm-2:15 pm

1 stop13h 50m

Košice Barca

Fri 2/27

5:20 am-7:08 pm

2 stops19h 48m

$581

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Mon 2/16

5:30 am-2:15 pm

2 stops26h 45m

Košice Barca

Fri 2/27

5:20 am-2:05 pm

1 stop14h 45m

$583

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 10m

Direct flights

None
The fastest flight from Boston to Slovakia takes 11h 10m
There are no direct flights from Boston to Slovakia. There are no popular flight routes from Boston to Slovakia.
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  • 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.

  • How do I get Price Alerts for flights from Boston to Slovakia?

    Search flight deals from Boston to Slovakia. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Boston to Slovakia with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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

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