$605 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Ostrava (OSR)

View $605 flight on Wed, Nov 5, 2025Opens in a new window

Popular airlines from Newark Liberty Intl. Airport (EWR) to Ostrava (OSR-Leos Janacek)

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Cheap Flights from Newark Liberty Intl. Airport to Ostrava (EWR-OSR)

Prices were available within the past 7 days and start at $605 for one-way flights and $934 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LOT-Polish Airlines
Mon, Aug 11 - Thu, Oct 2
EWR
New York
OSR
Ostrava
$934 Roundtrip, found 4 days ago
$934
Roundtrip
found 4 days ago
Select LOT-Polish Airlines flight, departing Mon, Aug 11 from New York to Ostrava, returning Thu, Oct 2, priced at $934 found 4 days ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$984 Roundtrip, found 23 hours ago
$984
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $984 found 23 hours ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$991 Roundtrip, found 23 hours ago
$991
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $991 found 23 hours ago
LOT-Polish Airlines
Tue, Aug 26 - Thu, Sep 4
EWR
New York
OSR
Ostrava
$1,003 Roundtrip, found 6 days ago
$1,003
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Tue, Aug 26 from New York to Ostrava, returning Thu, Sep 4, priced at $1,003 found 6 days ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$1,009 Roundtrip, found 23 hours ago
$1,009
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $1,009 found 23 hours ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$1,016 Roundtrip, found 23 hours ago
$1,016
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $1,016 found 23 hours ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$1,026 Roundtrip, found 23 hours ago
$1,026
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $1,026 found 23 hours ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$1,051 Roundtrip, found 23 hours ago
$1,051
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $1,051 found 23 hours ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$1,054 Roundtrip, found 23 hours ago
$1,054
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $1,054 found 23 hours ago
TAP Portugal
Wed, Sep 10 - Wed, Sep 17
EWR
New York
OSR
Ostrava
$1,061 Roundtrip, found 23 hours ago
$1,061
Roundtrip
found 23 hours ago
Select TAP Portugal flight, departing Wed, Sep 10 from New York to Ostrava, returning Wed, Sep 17, priced at $1,061 found 23 hours ago
Flights from Newark Liberty Intl. Airport (EWR) to Ostrava (OSR)
Origin airport
Newark Liberty Intl. Airport
Destination airport
Leos Janacek
Airlines serving
TAP Portugal
Roundtrip price
$933
Distance
4247 mi

Newark Liberty Intl. Airport to Ostrava Flights

The cheapest times to fly from Newark Liberty Intl. Airport to Ostrava

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Newark Liberty Intl. Airport to Ostrava are during the month of August. You can find some of the cheapest flights from Newark Liberty Intl. Airport to Ostrava with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Newark Liberty Intl. Airport to Ostrava

Sunday is one of the best days to book for cheap flights from Newark Liberty Intl. Airport to Ostrava: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Newark Liberty Intl. Airport to Ostrava

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Newark Liberty Intl. Airport to Ostrava in 2025. You can also book with separate airlines for your outbound and return journeys, from $605 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Newark Liberty Intl. Airport to Ostrava flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Newark Liberty Intl. Airport to Ostrava airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Liberty Intl. Airport (EWR) to Leos Janacek Airport (OSR) cost?
Discover the latest flight deals from EWR to OSR by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from EWR to OSR?
The cheapest flights from EWR to OSR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from EWR to OSR?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from EWR to OSR. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Liberty Intl. Airport (EWR) to Leos Janacek Airport (OSR)?
You'll need to catch a flight with a layover when traveling from Liberty Intl. Airport (EWR) to Leos Janacek Airport (OSR). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from EWR to OSR?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Liberty Intl. Airport (EWR) to Leos Janacek Airport (OSR)?
To avoid possible delays on the Liberty Intl. Airport (EWR) to Leos Janacek Airport (OSR) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Liberty Intl. Airport (EWR) to Leos Janacek Airport (OSR) last-minute?
Booking your plane ticket from EWR to OSR shortly before your journey is typically more expensive. But if you're flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an EWR to OSR flight and hotel package?
You'll typically save money by securing an EWR to OSR flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Liberty Intl. Airport (EWR) to Leos Janacek Airport (OSR)?
It's generally possible to cancel or reschedule your EWR to OSR flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.