14/09/2026
Departure: 20:49
Terminal 1 | Gate -
Arrival: 21:48
Terminal 3 | Gate -
Claim up to €600
AirAdvisor is rated 4.5/5
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Prague to London
Updated 0h 47m ago
Prague 21 Sep
CEST (UTC 02:00)
London 21 Sep
BST (UTC 01:00)
If your BA857 flight status reads as delayed or cancelled we are here to help. Learn your passenger rights and how to file for compensation below.
Search a departure date or browse below
14/09/2026
Departure: 20:49
Terminal 1 | Gate -
Arrival: 21:48
Terminal 3 | Gate -
Claim up to €600
18/09/2026
Departure: 20:49
Terminal 1 | Gate -
Arrival: 21:43
Terminal 3 | Gate -
Claim up to €600
20/09/2026
Departure: 21:20
Terminal 1 | Gate -
Arrival: 22:20
Terminal 3 | Gate -
Claim up to €600
No flights scheduled for selected date
Yes! You could claim up to €600 ≈ £520 + refunds & expenses.
Your British Airways flight from PRG to LHR covers 1043.36km/648 miles, making it eligible for the maximum compensation.
Don't leave your money on the table! Join thousands of passengers who have received their payout by starting your claim now.
If your BA857 flight was a connecting flight, you can use our compensation checker to find out if you are owed compensation.
BA must ordinarily provide you with compensation if your flight is significantly delayed or cancelled. Choose an option below to learn more.
| Delay time | Entitlement |
|---|---|
| 2 hours | No entitlement |
| 3 hours+ | €600 ≈ £520 compensation Care and assistance: AirAdvisor can help you claim back any 'reasonable' expenses if care and assistance isn't provided. |
| New flight | Entitlement |
|---|---|
| Departed less than 1 hour before the original departure time and arrived at final destination within 2 hours of the original arrival time | No entitlement |
| Arrived at final destination less than 4 hours later than the original arrival time | €300 ≈ £260 compensation |
| Arrived at final destination more than 4 hours later than the original arrival time | €600 ≈ £520 compensation |
| New flight | Entitlement |
|---|---|
| Departed less than 2 hours before original departure time, and arrived at final destination within 4 hours of the original arrival time | No entitlement |
| Departed less than 1 hour before original departure time, and arrived at final destination less than 4 hours of the original arrival time | €300 ≈ £260 compensation |
| Arrived at final destination more than 4 hours later than the original arrival time | €600 ≈ £520 compensation |
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