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BOS - KSC

$362 Find cheap flights from Boston to Košice

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Košice departing on 7/14. 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
0 bags
Fri 7/12
Fri 7/19

Search hundreds of travel sites at once for deals on flights to Košice

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Košice, 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 Boston to Košice, as well as popular online travel agencies
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Boston to Košice (BOS-KSC)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Košice 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 and deals for you by selecting your travel dates.
Choose your dates
9:55 pm - 2:10 pmBOS-KSC
10h 15m1 stop
2:55 pm - 8:20 pmKSC-BOS
11h 25m1 stop
$569SWISS
Find Deal
Tue, Nov 12 - Wed, Nov 27
10:25 am - 2:15 pmBOS-KSC
21h 50m2 stops
9:40 am - 9:36 amKSC-BOS
29h 56m2 stops
Wed, Nov 6 - Fri, Nov 29
10:25 am - 6:40 pmBOS-KSC
26h 15m2 stops
4:40 am - 10:29 amKSC-BOS
35h 49m2 stops
Sun, Nov 10 - Wed, Nov 27
5:30 pm - 11:50 pmBOS-KSC
24h 20m1 stop
2:55 pm - 2:10 pmKSC-BOS
29h 15m1 stop
$578Austrian Airlines
Find Deal
Wed, Nov 6 - Tue, Nov 26
1:30 pm - 2:15 pmBOS-KSC
18h 45m2 stops
2:55 pm - 2:10 pmKSC-BOS
29h 15m1 stop
$583Austrian Airlines
Find Deal
Wed, Nov 6 - Tue, Nov 26
10:25 am - 11:50 pmBOS-KSC
31h 25m2 stops
4:40 am - 10:29 amKSC-BOS
35h 49m2 stops
Wed, Nov 6 - Wed, Nov 27
9:00 pm - 2:15 pmBOS-KSC
11h 15m2 stops
4:40 am - 6:35 pmKSC-BOS
19h 55m2 stops
$726Lufthansa
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Fri, Nov 8 - Thu, Nov 28
9:00 pm - 2:15 pmBOS-KSC
35h 15m2 stops
2:55 pm - 1:20 pmKSC-BOS
28h 25m2 stops
$772Lufthansa
Find Deal
Sun, Nov 10 - Tue, Nov 26
3:21 pm - 12:15 amBOS-KSC
26h 54m2 stops
1:00 pm - 12:05 amKSC-BOS
17h 05m2 stops
$1,007LOT
Find Deal
Thu, Nov 7 - Tue, Nov 26
3:21 pm - 5:05 pmBOS-KSC
19h 44m2 stops
5:15 am - 8:46 amKSC-BOS
33h 31m2 stops
$1,092LOT
Find Deal
Wed, Nov 6 - Sat, Nov 30

Good to know

Low season

February

High season

August

Cheapest flight

$362
Best time to beat the crowds with an average 49% drop in price.
Most popular time to fly and prices are also 16% 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
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 Boston to Košice

  • What is the cheapest flight from Boston to Košice?

    In the last 3 days, the lowest price for a flight from Boston to Košice was $362 for a one-way ticket and $569 for a round-trip.

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

    Yes, you’ll need a passport to travel to Košice from Boston.

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

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

  • Which airline alliances offer flights from Boston to Košice?

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

  • Which is the best airline for flights from Boston to Košice, SWISS or Austrian Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Košice are SWISS and Austrian Airlines. With an average price for the route of $712 and an overall rating of 7.7, SWISS is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of $1,104 and an overall rating of 7.6.

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

    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 Boston to Košice.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Košice from Boston 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 Boston to Košice?

    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 Košice with an airline and back to Boston with another airline. Booking your flights between Boston and KSC 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 Boston to Košice?

    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 Košice from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Boston to Košice

 
See real verified KAYAK customer reviews for airlines flying from Boston to Košice. 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 Boston to Košice? 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.
7.7
SWISSOverall score based on 1904 reviews
8.4Crew
7.3Food
7.1Entertainment
7.5Comfort
7.8Boarding
Airline reviews

Wonderful experience! The crew was outstanding and amazing from check in to gate to flight crew! Amazing. Thank you!

10.0 ExcellentAnonymous, Jun 2024ORD - ZRH
Read more about SWISS reviews

Wonderful experience! The crew was outstanding and amazing from check in to gate to flight crew! Amazing. Thank you!

Leave on time so i dont miss my transit flight. Also make it so coffee/tea is free amd not a paid service. The staff treat us like dogs having us wait everywhere. The buses had no ac and we had to wait inside packed like sardines. Horrible experience. Never flying again hopefully and not using kayak.

I arrived 59 minutes before the flight in Tampa due to Massive traffic jam and the flight was closed and I was told that I’d simply have to “book a new ticket on line myself and the gate agents couldn’t help me”. Even though the flight was delayed over 30 minutes, (leaving one hour and 29 minutes before departure, they refused to assist in any way explaining that it’s automatic and there can be no exceptions. Horrible experience due to poor management at gate. I fly this option 2-3 times a year and have a good experience with the cabin crew etc. But, Tampa agents are not trained or allowed customer service. I once was a gate agent for USAir, I know times have changed, but forcing me to purchase a new ticket and complete indifference and inconvenience. No thanks

Crew members were good. Seats were packed and too tight .

Carry on luggage size for economy passengers significantly smaller than other airlines, so nearly all ecomy passengers had their bags taken and checked.

Had a short layover in Zurich, luggage marked expedite and short layover but still didn’t get luggage when arrived in Split until 3 days later even though husband got his.

On time flight, I requested wheelchair in Zurich , when I arrived they were no where to be found, I had one hour between flights I had to walk with great difficulty.

We had issues with upgrading our seats. The flight itself was fine.

we were late to get to this connecting flight and SWISS decided to wait for us . Very nice of them

Horrible experience. They "GAME" with seats they decided to play where you can`t select or get seat during check-in without paying and then forcing you to stay long line at the Customer Service at the gate to get a boarding ticket with seat assigned is pathetic. Will never fly with United again!

No delays, helpful staff, well organised. The check in and boarding procedures ran smoothly. The only thing that put me off is that the meal had spicy peppers in. I would have appreciated at least a warning (if i couldn't have a choice) so as to simply not eat them because they were too spicy.

The crew was attentive but not intrusive, and was always kind in every interaction.

From all the segments I flew it was the only one I did not get the option to choose ni seat, I did not get the quality of seat I had paid for. Crew was nice, airplane was clean, but no food, only water and a small courtesy chocolate. Everything else you had to pay for.

Management and staff att viena wasn’t professional,and they are not good by how to communicate and solve the problem, I was shocked , as I know Austrian airlines was amusing Thank you

I bought the ticket a month before my flight but checked in couple hours before my flight and had to wait seat assignment just before take off. On top of that there was not enough room in the overhead bin for my luggage.

The baggage arrived damaged and i spent EUR 300 on the baggage a month ago. No responsibility from airline or the handles.

Tight connection from Austrian Airlines made this challenging. Our luggage did not make it, delivered the next day at noon. Flight itself was very full, not especially comfortable.

There were a number of passengers scheduled to transfer to the flight from Vienna to Warsaw. None of them made it because the crew failed to assist them in getting to the gate for the Warsaw bound flight in time. It could have been done very easily with proper assistance.

It becomes like Wizz air, no good, bad comfort and you should pay for 20kg bag.

Overall pleasant flight . The lunch was exceptional! Delicious chicken curry with perfect rice and amazing chocolate (Sacher torte) for desert. I have not eaten such a good airplane meal in a very, very long time.

United delayed the flight to assist customers to make the connection. The Ohara customs area was overwhelm which created an issue for customers trying to make the Little Rock connection. The delayed allow several customers to make the final flight into Little Rock.

Missed our flight to London and we were put on coach seats to Munich.

Terrible. Missed our flight to Newark as well as our flight to London. Complete disaster

They canceled our flight last minute and we had to get another flight with twice the cost

Dinner was excellent - beef stew, the eggs for breakfast were only ok. It was soooo nice that there were so many options for movies and games.

Captain waited 45 minutes for late passengers boarding from Washington DC to Munich which was nice for them but caused our luggage to miss boarding our connection on to Bucharest. We then did not receive our luggage for about 48 hours after landing which was very inconvenient for our travel.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Book cheap flights from Boston to Košice

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Košice found on KAYAK in the last 72 hours.
7/14Sun
3 stops
41h 40mBOS-KSC
$362
7/14Sun
2 stops
39h 35mBOS-KSC
$389
7/14Sun
1 stopSWISS
14h 55mBOS-KSC
$782

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Boston - Košice Flights

Departure:

Boston (BOS)United States

Destination:

Košice (KSC)Slovakia

Return flight deals:

Košice - Boston

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