BOS - KSC

$629 Find Cheap Flights from Boston to Košice - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$775
Typical prices: $740-$1,080
Multiple Airlines
Sun 11/18Mon 11/26
BOS - KSC • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boston and Košice. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
October
Cheapest • 10% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dublin (DUB)
Cheapest • Avg $740 (round-trip)
Zurich (ZRH)
Shortest trip • 11h 02m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Košice!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Košice (BOS-KSC)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Košice

Wed, Nov 18 - Thu, Nov 26
Multiple Airlines Logo
5:15 pm - 11:55 amBOS  Boston Logan Intl-KSC Košice Barca
12h 40m1 stop Dublin
Multiple Airlines Logo
12:20 pm - 5:50 pmKSC  Košice Barca-BOS Boston Logan Intl
35h 30m2 stops Dublin Reykjavik Keflavik Intl
$775Multiple Airlines
Sat, Nov 14 - Thu, Nov 26
Multiple Airlines Logo
5:15 pm - 2:30 pmBOS  Boston Logan Intl-KSC Košice Barca
15h 15m1 stop Dublin
Multiple Airlines Logo
12:20 pm - 5:50 pmKSC  Košice Barca-BOS Boston Logan Intl
35h 30m2 stops Dublin Reykjavik Keflavik Intl
$779Multiple Airlines
Wed, Nov 4 - Wed, Nov 11
SWISS Logo
9:50 pm - 9:00 amBOS  Boston Logan Intl-KSC Košice Barca
29h 10m1 stop Zurich
SWISS Logo
2:35 pm - 8:20 pmKSC  Košice Barca-BOS Boston Logan Intl
11h 45m1 stop Zurich
$783SWISS
Wed, Nov 18 - Thu, Nov 26
Multiple Airlines Logo
5:15 pm - 11:55 amBOS  Boston Logan Intl-KSC Košice Barca
12h 40m1 stop Dublin
Multiple Airlines Logo
12:20 pm - 5:50 pmKSC  Košice Barca-BOS Boston Logan Intl
35h 30m2 stops Dublin Reykjavik Keflavik Intl
$785Multiple Airlines
Wed, Nov 4 - Wed, Nov 11
Multiple Airlines Logo
8:40 pm - 2:15 pmBOS  Boston Logan Intl-KSC Košice Barca
11h 35m2 stops Munich Franz Josef Strauss Vienna Intl
Multiple Airlines Logo
2:35 pm - 8:20 pmKSC  Košice Barca-BOS Boston Logan Intl
11h 45m1 stop Zurich
$789Multiple Airlines
Wed, Nov 18 - Wed, Nov 25
Multiple Airlines Logo
5:15 pm - 11:55 amBOS  Boston Logan Intl-KSC Košice Barca
12h 40m1 stop Dublin
Multiple Airlines Logo
9:50 am - 1:45 pmKSC  Košice Barca-BOS Boston Logan Intl
33h 55m2 stops London Stansted Frankfurt am Main
$794Multiple Airlines
Sun, Nov 15 - Fri, Nov 27
Austrian Airlines Logo
6:55 pm - 2:15 pmBOS  Boston Logan Intl-KSC Košice Barca
13h 20m1 stop Vienna Intl
Austrian Airlines Logo
5:20 am - 1:30 pmKSC  Košice Barca-BOS Boston Logan Intl
14h 10m1 stop Vienna Intl
$801Austrian Airlines
Wed, Nov 18 - Wed, Nov 25
Multiple Airlines Logo
5:15 pm - 11:55 amBOS  Boston Logan Intl-KSC Košice Barca
12h 40m1 stop Dublin
Multiple Airlines Logo
9:50 am - 1:45 pmKSC  Košice Barca-BOS Boston Logan Intl
33h 55m2 stops London Stansted Frankfurt am Main
$805Multiple Airlines
Wed, Nov 18 - Thu, Nov 26
Multiple Airlines Logo
5:15 pm - 11:55 amBOS  Boston Logan Intl-KSC Košice Barca
12h 40m1 stop Dublin
Multiple Airlines Logo
12:20 pm - 1:55 pmKSC  Košice Barca-BOS Boston Logan Intl
31h 35m1 stop Dublin
$805Multiple Airlines
Wed, Nov 18 - Sun, Nov 29
Multiple Airlines Logo
5:15 pm - 11:55 amBOS  Boston Logan Intl-KSC Košice Barca
12h 40m1 stop Dublin
Multiple Airlines Logo
2:55 pm - 5:50 pmKSC  Košice Barca-BOS Boston Logan Intl
32h 55m2 stops Dublin Reykjavik Keflavik Intl
$807Multiple Airlines
Booking Insights

Price, demand and travel trends for Boston to Košice flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Boston to Košice with more confidence.

What's the cheapest day of the week to fly from Boston to Košice?

Saturday is the cheapest day of the week to fly from Boston to Košice, it is 21% cheaper than the average day. Friday is the most expensive day with flight prices 39% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Boston to Košice flights

Low season

January

Cheapest flight

$629
Most popular time to fly and prices are also 10% lower on average.
Flight from Boston to Košice

When to book flights from Boston to Košice

Are your dates flexible? Find out the best times to travel from Boston to Košice based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Košice flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What cabin classes can I book on flights from Boston to Košice?

    Only Economy Class is available on flights from Boston to Košice.

  • How long is a flight from Boston to Košice?

    A nonstop flight from Boston to Košice takes 0h 00m, covering 4,203 miles.

  • Do I need a passport to fly from Boston to Košice?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Košice flight?

    Round-trip flights from Boston to Košice range from $740 to $1,080, with an average of $839 over the past 12 months. Anything below $740 counts as a good deal.

  • Have flight prices from Boston to Košice changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $775 to $2,302. That means the highest observed fare was about 3x higher than the lowest one.

  • What car rental options are available at Košice Barca Airport (KSC)?

    Košice Barca Airport (KSC) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:
    • Budget
    • Europcar
    • Avis
    • Sixt
    • Alamo

  • Which airports can I use when flying from Boston to Košice?

    Flights from Boston to Košice usually depart from Boston Logan Intl (BOS) and arrive at Košice Barca (KSC).

  • Which airports do connecting flights from Boston to Košice pass through?

    One-stop flights from Boston to Košice most commonly connect through:

    • Vienna Intl (VIE) - 46% of one-stop connections
    • Zurich (ZRH) - 46% of one-stop connections
    • Dublin (DUB) - 8% of one-stop connections

    Vienna Intl (VIE) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Boston to Košice?

    On the Boston to Košice route, being flexible with your departure day can save you up to 43%. Saturday is the cheapest day at $668 round-trip on average, while Friday is the most expensive at $1,171: a $503 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Boston to Košice?

    Flying via Zurich (ZRH) gives the shortest average 1-stop total travel time at 11h 02m, compared with 12h 39m via Dublin (DUB) and 14h 05m via Vienna Intl (VIE).

  • What is the time difference between Boston and Košice?

    Košice is 6 hours ahead of Boston (Central European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Boston to Košice flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Saturday departure instead of Friday. On this route, Saturday flights average $668 - about $503 less than Friday (43% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Košice trip for October. Fares historically average $757 round-trip in that month - typically $1,334 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from Boston to Košice

Complete your trip to Košice with a hotel stay or car rental

Car rentals in Košice
Hotels in Košice