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$446+ Cheap flights from Košice (KSC) to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
KSC — BOS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Košice to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Košice (KSC) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$676
(Austrian Airlines)

One-way from

$446
(Kiwi.com)
From Košice Barca to Boston Logan Intl
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One-way flight from Košice Barca to Boston Logan Intl
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Find flight deals from Košice to Boston

Cheapest flights from Košice to Boston
Explore the most affordable flight options available from Košice to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Austrian Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/62:55 pmKSC - BOS
1 stop29h 10mAustrian Airlines
Mon 11/101:30 pmBOS - KSC
2 stops18h 45mAustrian Airlines
Deal found 7/30$676
This Travelocity deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:25 amKSC - BOS
2 stops18h 15mMultiple Airlines
Tue 8/195:10 pmBOS - KSC
1 stop24h 10mMultiple Airlines
Deal found 7/30$731
This Trip.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/159:40 amKSC - BOS
1 stop11h 45mSWISS
Tue 8/199:40 pmBOS - KSC
1 stop10h 15mSWISS
Deal found 7/30$850

Cheapflights Fare Finder

 
Customize your flight search to find flights from Košice to Boston 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Košice to Boston that are best for you.

Fly from

Košice

Fly to

Boston

Route

Depart

Return

Price

KošiceBoston

KSC - BOS

KSCBOS

Košice Barca

Thu 11/6

2:55 pm-2:05 pm

1 stop29h 10m

Boston Logan Intl

Mon 11/10

1:30 pm-2:15 pm

2 stops18h 45m

$676

KošiceBoston

KSC - BOS

KSCBOS

Košice Barca

Fri 8/15

5:25 am-5:40 pm

2 stops18h 15m

Boston Logan Intl

Tue 8/19

5:10 pm-11:20 pm

1 stop24h 10m

$731

KošiceBoston

KSC - BOS

KSCBOS

Košice Barca

Fri 8/15

9:40 am-3:25 pm

1 stop11h 45m

Boston Logan Intl

Tue 8/19

9:40 pm-1:55 pm

1 stop10h 15m

$850

KošiceBoston

KSC - BOS

KSCBOS

Košice Barca

Mon 8/25

12:25 pm-5:50 pm

3 stops59h 25m

$446

KošiceBoston

KSC - BOS

KSCBOS

Košice Barca

Wed 8/27

2:45 pm-7:55 pm

1 stop11h 10m

$1,173

KošiceBoston

KSC - BOS

KSCBOS

Košice Barca

Sun 8/24

2:45 pm-1:50 pm

1 stop29h 05m

$1,176

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Best time to book a flight from Košice to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Košice with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated July 31, 2025.
See what other customers who have flown with Austrian Airlines and SWISS from Košice to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
823 reviews

Overall

7.6

Boarding

7.6

Food

6.8

Entertainment

6.8

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
823 reviews
Austrian Airlines
7.6
Good
823 reviews

Overall

7.6

Boarding

7.6

Food

6.8

Entertainment

6.8

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,686 reviews
Austrian Airlines
7.6
Good
823 reviews

Overall

7.6

Boarding

7.6

Food

6.8

Entertainment

6.8

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Related info for your journey

Find useful and relevant information for your journey from Košice to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Košice to Boston that include hotel bookings?

    Yes. In addition to deals on Košice to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Košice to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Košice to Boston.

  • Can I find deals for business class flights from Košice to Boston?

    Yes. Cheapflights offers flight deals from Košice to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Košice to Boston?

    Currently, January is the cheapest month in which you can book a flight from Košice to Boston (average of $218). Flying from Košice to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Watertown
Seabrook
Waltham
Framingham
Lowell
Randolph
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
Quincy
York Beach
Chelsea
Saco
Hampton Beach
Swansea
Lincoln

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Alternative routes for Košice to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Bratislava to Boston flights

Top airline flying from Košice to Boston

Discover the top airline that operate flights from Košice to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$555Average$707FlexibilityNo cancel feeOn-time79%

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