Cheap flights from Boston to Slovakia from $515

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Slovakia departing on 10/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Multiple Airlines Logo
4:45 pm - 10:30 pmBOS-BTS
23h 45m2 stops
Multiple Airlines Logo
11:25 pm - 7:55 pmBTS-BOS
26h 30m2 stops
$515Multiple Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 21
Multiple Airlines Logo
4:00 pm - 2:50 pmBOS-BTS
16h 50m2 stops
Multiple Airlines Logo
10:15 pm - 1:55 pmBTS-BOS
21h 40m2 stops
$520Multiple Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
Multiple Airlines Logo
9:50 pm - 6:50 pmBOS-KSC
15h 00m1 stop
Multiple Airlines Logo
9:45 am - 9:27 pmKSC-BOS
17h 42m2 stops
$569Multiple Airlines
Find Deal
Sun, Nov 9 - Fri, Nov 21
SWISS Logo
9:50 pm - 6:50 pmBOS-KSC
15h 00m1 stop
SWISS Logo
7:40 pm - 8:20 pmKSC-BOS
30h 40m1 stop
$574SWISS
Find Deal
Sun, Nov 9 - Mon, Nov 24
Multiple Airlines Logo
9:50 pm - 6:50 pmBOS-KSC
15h 00m1 stop
Multiple Airlines Logo
2:55 pm - 2:05 pmKSC-BOS
29h 10m1 stop
$577Multiple Airlines
Find Deal
Sun, Nov 9 - Thu, Nov 20
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
$585Austrian Airlines
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Tue, Nov 11 - Thu, Nov 20
Austrian Airlines Logo
1:30 pm - 11:15 pmBOS-KSC
27h 45m2 stops
Austrian Airlines Logo
5:20 am - 2:05 pmKSC-BOS
14h 45m1 stop
$590Austrian Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Lufthansa Logo
8:40 pm - 2:15 pmBOS-KSC
35h 35m2 stops
Lufthansa Logo
2:55 pm - 6:35 pmKSC-BOS
33h 40m2 stops
$637Lufthansa
Find Deal
Sun, Nov 9 - Tue, Nov 18
Lufthansa Logo
8:40 pm - 2:15 pmBOS-KSC
11h 35m2 stops
Lufthansa Logo
2:55 pm - 1:25 pmKSC-BOS
52h 30m2 stops
$665Lufthansa
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Sun, Nov 9 - Sun, Nov 23
LOT Logo
3:37 pm - 12:30 pmBOS-KSC
38h 53m2 stops
LOT Logo
5:15 am - 12:14 amKSC-BOS
24h 59m2 stops
$921LOT
Find Deal
Sun, Nov 9 - Sat, Nov 22

Austrian Airlines flights from Boston to Slovakia

Our best Austrian Airlines deals on Boston to Slovakia flight tickets
Austrian Airlines
Nov 11
BOS6:25 pmBoston Logan Intl
13h 50m
1 stop
KSC2:15 pmKošice Barca
Nov 20
KSC2:55 pmKošice Barca
29h 10m
1 stop
BOS2:05 pmBoston Logan Intl
Austrian Airlines
Nov 11
BOS1:30 pmBoston Logan Intl
27h 45m
2 stops
KSC11:15 pmKošice Barca
Nov 18
KSC5:20 amKošice Barca
14h 45m
1 stop
BOS2:05 pmBoston Logan Intl
Austrian Airlines
Nov 9
BOS6:25 pmBoston Logan Intl
22h 50m
1 stop
KSC11:15 pmKošice Barca
Nov 24
KSC2:55 pmKošice Barca
32h 20m
2 stops
BOS5:15 pmBoston Logan Intl

LOT flights from Boston to Slovakia

Our best LOT deals on Boston to Slovakia flight tickets
LOT
Nov 9
BOS3:37 pmBoston Logan Intl
38h 53m
2 stops
KSC12:30 pmKošice Barca
Nov 22
KSC5:15 amKošice Barca
24h 59m
2 stops
BOS12:14 amBoston Logan Intl
LOT
Sep 24
BOS12:20 pmBoston Logan Intl
22h 45m
2 stops
KSC5:05 pmKošice Barca
Oct 2
KSC5:20 amKošice Barca
24h 54m
2 stops
BOS12:14 amBoston Logan Intl

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 September 17, 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

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/16

4:45 pm-10:30 pm

2 stops23h 45m

Bratislava - M. R. Štefánik

Tue 10/21

11:25 pm-7:55 pm

2 stops26h 30m

$515

BostonBratislava

BOS - BTS

BOSBTS

Boston Logan Intl

Thu 10/2

4:00 pm-2:50 pm

2 stops16h 50m

Bratislava - M. R. Štefánik

Mon 10/6

10:15 pm-1:55 pm

2 stops21h 40m

$520

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 11/9

9:50 pm-6:50 pm

1 stop15h 00m

Košice Barca

Fri 11/21

9:45 am-9:27 pm

2 stops17h 42m

$569

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 11/9

9:50 pm-6:50 pm

1 stop15h 00m

Košice Barca

Mon 11/24

7:40 pm-8:20 pm

1 stop30h 40m

$574

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 11/9

9:50 pm-6:50 pm

1 stop15h 00m

Košice Barca

Thu 11/20

2:55 pm-2:05 pm

1 stop29h 10m

$577

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 11/11

6:25 pm-2:15 pm

1 stop13h 50m

Košice Barca

Thu 11/20

2:55 pm-2:05 pm

1 stop29h 10m

$585

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Tue 11/11

1:30 pm-11:15 pm

2 stops27h 45m

Košice Barca

Tue 11/18

5:20 am-2:05 pm

1 stop14h 45m

$590

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 11/9

8:40 pm-2:15 pm

2 stops35h 35m

Košice Barca

Tue 11/18

2:55 pm-6:35 pm

2 stops33h 40m

$637

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 11/9

8:40 pm-2:15 pm

2 stops11h 35m

Košice Barca

Sun 11/23

2:55 pm-1:25 pm

2 stops52h 30m

$665

BostonKošice

BOS - KSC

BOSKSC

Boston Logan Intl

Sun 11/9

3:37 pm-12:30 pm

2 stops38h 53m

Košice Barca

Sat 11/22

5:15 am-12:14 am

2 stops24h 59m

$921

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 day to depart on your flight to Slovakia?

According to our data, Friday is the cheapest day to fly to Slovakia from Boston. The lowest ticket price found for a Friday departure recently was $725. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Slovakia is Monday, with ticket prices averaging around $1,104.

What is the cheapest time of day to depart on your flight to Slovakia?

According to our data, the cheapest time of day to fly to Slovakia is in the evening. momondo users have found flights departing from Boston to Slovakia in the evening for as low as $824. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,004.

Cheap Boston to Slovakia flight deals and tips

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

Direct flights

None
There are no direct flights from Boston to Slovakia. There are no popular flight routes 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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1 adult
Fri 10/17
Fri 10/24

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