$168 Cheap Flights from Ostrava (OSR) to London (LHR)

View $168 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from Ostrava (OSR-Leos Janacek) to Heathrow Airport (LHR)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Ostrava to London (OSR-LHR)

Prices were available within the past 7 days and start at $168 for one-way flights and $337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$337 Roundtrip, found 6 days ago
$337
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $337 found 6 days ago
LOT-Polish Airlines
Fri, Jan 2 - Fri, Jan 9
OSR
Ostrava
LHR
London
$386 Roundtrip, found 1 day ago
$386
Roundtrip
found 1 day ago
Select LOT-Polish Airlines flight, departing Fri, Jan 2 from Ostrava to London, returning Fri, Jan 9, priced at $386 found 1 day ago
LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$412 Roundtrip, found 6 days ago
$412
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $412 found 6 days ago
LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$473 Roundtrip, found 6 days ago
$473
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $473 found 6 days ago
LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$473 Roundtrip, found 6 days ago
$473
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $473 found 6 days ago
LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$478 Roundtrip, found 6 days ago
$478
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $478 found 6 days ago
LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$544 Roundtrip, found 6 days ago
$544
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $544 found 6 days ago
LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$544 Roundtrip, found 6 days ago
$544
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $544 found 6 days ago
LOT-Polish Airlines
Fri, Oct 24 - Mon, Oct 27
OSR
Ostrava
LHR
London
$719 Roundtrip, found 6 days ago
$719
Roundtrip
found 6 days ago
Select LOT-Polish Airlines flight, departing Fri, Oct 24 from Ostrava to London, returning Mon, Oct 27, priced at $719 found 6 days ago
LOT-Polish Airlines
Fri, Jan 2 - Fri, Jan 9
OSR
Ostrava
LHR
London
$1,984 Roundtrip, found 1 day ago
$1,984
Roundtrip
found 1 day ago
Select LOT-Polish Airlines flight, departing Fri, Jan 2 from Ostrava to London, returning Fri, Jan 9, priced at $1,984 found 1 day ago

Frequently asked questions

How much does a flight from Leos Janacek Airport (OSR) to Heathrow Airport (LHR) cost?
Secure a cheap one-way flight from $168 or cheap return flight from $337 from Leos Janacek Airport (OSR) to Heathrow Airport (LHR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Leos Janacek Airport (OSR) to Heathrow Airport (LHR)?
The cheapest month to fly from OSR to LHR is October, when there's less demand. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Leos Janacek Airport (OSR) to Heathrow Airport (LHR)?
To find the cheapest airline flying from OSR to LHR, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Leos Janacek Airport (OSR) to Heathrow Airport (LHR)?
You'll need to catch a flight with a layover if you're traveling from Leos Janacek Airport (OSR) to Heathrow Airport (LHR). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from OSR to LHR?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Leos Janacek Airport (OSR) to Heathrow Airport (LHR)?
To avoid potential delays on the Leos Janacek Airport (OSR) to Heathrow Airport (LHR) route, aim to travel before 3 PM. Later flights have a 22% higher chance of being canceled.**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.
What airports do you fly into for London from Leos Janacek Airport (OSR)?
If you're traveling on a direct flight from Leos Janacek Airport (OSR) to London, Stansted Airport (STN) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Leos Janacek Airport (OSR) to Heathrow Airport (LHR) last-minute?
Waiting until right before your break to book your flight from OSR to LHR often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans to boost your chances of getting a bargain.
Is it cheaper to book an OSR to LHR flight and hotel package?
Securing an OSR to LHR flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Leos Janacek Airport (OSR) to Heathrow Airport (LHR)?
It's generally possible to cancel or reschedule your OSR to LHR flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Leos Janacek
Destination airport
Heathrow
Roundtrip price
$336
Distance
821 mi

Book with confidence

Book with confidence

Ostrava to London Flights

The cheapest times to fly from Ostrava to London

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 Ostrava to London are during the month of October. You can find some of the cheapest flights from Ostrava to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ostrava to London

Sunday is one of the best days to book for cheap flights from Ostrava to London: 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 Ostrava to London

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 Ostrava to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $168 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 Ostrava to London 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 Ostrava to London 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.

 

Ostrava to London Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.