KSC - BOS

$619 Find Cheap Flights from Košice to Boston

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Košice to Boston departing on 11/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Košice to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Košice to Boston, as well as popular online travel agencies
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Cheap Flights from Košice to Boston (KSC-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Košice to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Košice to Boston

Thu, Nov 6 - Mon, Nov 10
Austrian Airlines Logo
2:55 pm - 2:05 pmKSC-BOS
29h 10m1 stop
Austrian Airlines Logo
1:30 pm - 2:15 pmBOS-KSC
18h 45m2 stops
$619Austrian Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Austrian Airlines Logo
2:55 pm - 2:05 pmKSC-BOS
29h 10m1 stop
Austrian Airlines Logo
1:30 pm - 2:15 pmBOS-KSC
18h 45m2 stops
$621Austrian Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Austrian Airlines Logo
2:55 pm - 2:05 pmKSC-BOS
29h 10m1 stop
Austrian Airlines Logo
1:30 pm - 2:15 pmBOS-KSC
18h 45m2 stops
$622Austrian Airlines
Find Deal
Sun, Oct 12 - Tue, Oct 28
Multiple Airlines Logo
5:25 am - 4:00 pmKSC-BOS
16h 35m2 stops
Multiple Airlines Logo
10:50 pm - 1:55 pmBOS-KSC
10h 05m1 stop
$626Multiple Airlines
Find Deal
Sun, Oct 12 - Tue, Oct 28
Multiple Airlines Logo
5:25 am - 4:00 pmKSC-BOS
16h 35m2 stops
Multiple Airlines Logo
10:50 pm - 1:55 pmBOS-KSC
10h 05m1 stop
$627Multiple Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Austrian Airlines Logo
2:55 pm - 5:15 pmKSC-BOS
32h 20m2 stops
Austrian Airlines Logo
1:30 pm - 2:15 pmBOS-KSC
18h 45m2 stops
$629Austrian Airlines
Find Deal
Sun, Oct 12 - Tue, Oct 28
Lufthansa Logo
5:25 am - 4:00 pmKSC-BOS
16h 35m2 stops
Lufthansa Logo
5:20 pm - 2:15 pmBOS-KSC
15h 55m2 stops
$654Lufthansa
Find Deal
Sun, Oct 12 - Tue, Oct 28
Lufthansa Logo
5:25 am - 4:00 pmKSC-BOS
16h 35m2 stops
Lufthansa Logo
9:40 pm - 11:15 pmBOS-KSC
20h 35m2 stops
$660Lufthansa
Find Deal
Sat, Mar 7 - Sat, Mar 21
LOT Logo
5:15 am - 6:30 amKSC-BOS
31h 15m2 stops
LOT Logo
3:40 pm - 12:10 amBOS-KSC
27h 30m2 stops
$964LOT
Find Deal
Sat, Mar 7 - Sat, Mar 21
LOT Logo
5:15 am - 6:30 amKSC-BOS
31h 15m2 stops
LOT Logo
12:45 pm - 12:10 amBOS-KSC
30h 25m2 stops
$1,011LOT
Find Deal

Everything you should know

Top airlines
Austrian Airlines
Cheapest • from $619 (round-trip)
SWISS
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$619
Austrian Airlines
Thu 11/6Mon 11/10
KSC - BOS • 1 stop
Cheapest one-way
Multiple Airlines
Thu 9/18
KSC - BOS • multi-stop
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Booking Insights

KAYAK's insights & trends for Košice to Boston flights

Get data-powered insights and trends into flights from Košice to Boston to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Košice to Boston?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Košice to Boston were found on Austrian Airlines ($619) and Lufthansa ($654).

Find deals

Good to know

Cheapest flight$619
Flight from Košice to Boston

When to book flights from Košice to Boston

Are your dates flexible? Find out the best times to travel from Košice to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Košice to Boston

  • What is the cheapest flight from Košice to Boston?

    In the last 3 days, the lowest price for a flight from Košice to Boston was $619 for a round-trip ticket.

  • Do I need a passport to fly between Košice and Boston?

    Yes

  • Which airports will I be using when flying from Košice to Boston?

    Košice and Boston are both served by 1 main airport. You will leave Košice from Košice Barca and will be arriving at Boston Logan Intl.

  • Which aircraft models fly most regularly from Košice to Boston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Košice to Boston?

    Star Alliance is the only airline alliance operating flights between Košice and Boston.

  • How does KAYAK find such low prices on flights from Košice to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Košice to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Košice to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Košice is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Košice to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Košice with another airline. Booking your flights between Košice and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Košice to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Košice up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Košice to Boston

 
See real verified KAYAK customer reviews for airlines flying from Košice to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Košice to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
SWISSOverall score based on 1737 reviews
7.4Comfort
8.2Crew
7.1Food
7.7Boarding
6.8Entertainment
Airline reviews

Even though I paid extra for more room, we were very cramped and the seats were hard. Also, when we checked in they did not post the gate we were to arrive at even though we were half an hour away from boarding. The agent did not know either. Actually, the flight from Porto to Zurich did to have the gate posted, and there were very few agents in the boarding areas who could help us. I would never fly Swiss Air again.

2.0 MediocreJoanne, Sep 2025ZRH - SFO
Read more SWISS reviews

Even though I paid extra for more room, we were very cramped and the seats were hard. Also, when we checked in they did not post the gate we were to arrive at even though we were half an hour away from boarding. The agent did not know either. Actually, the flight from Porto to Zurich did to have the gate posted, and there were very few agents in the boarding areas who could help us. I would never fly Swiss Air again.

Well it was a 2h delay flight so that said it all. With very little if any information. Boarding took for ever with long waits at the terminal and then in the finger. To top it off and increase the delay we had to take a bus in Zurich. A trip to forget

Swiss is the. Only airline I use when I go to Europe. They are on time and they are fantastic!

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

Not good. We returned on united airlines and the food was horrible.

The cabin was warm and few used the blankets. I should’ve upgraded.

The plan was delayed for takeoff by an hour, but we ended up making the landing on time which was a nice surprise.

I can’t even the whole trip was a catastrophe

The food was good. Most the staff was pleasant. The flight would be drastically improved with WiFi on a long international flight.

The crew was very friendly and nice! Very smooth flight.

Everything you need to know for your flight from Košice to Boston

Information on your arrival and departure airports

Košice (KSC)
Boston (BOS)

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