British Airways Flight BA857 Deals & Information (2025/2026)

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British Airways Flight 857 Route Deals From $48

The cheapest prices found with in the last 7 days for return flights were $112 and $48 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 6 - Wed, Nov 12
PRG
Vaclav Havel
LHR
Heathrow
$112 Roundtrip, found 5 hours ago
$112
Roundtrip
found 5 hours ago
Select British Airways flight, departing Thu, Nov 6 from Vaclav Havel to Heathrow, returning Wed, Nov 12, priced at $112 found 5 hours ago
Thu, Nov 6 - Wed, Nov 12
PRG
Vaclav Havel
LHR
Heathrow
$124 Roundtrip, found 5 hours ago
$124
Roundtrip
found 5 hours ago
Select British Airways flight, departing Thu, Nov 6 from Vaclav Havel to Heathrow, returning Wed, Nov 12, priced at $124 found 5 hours ago
Thu, Oct 2 - Sun, Oct 5
PRG
Vaclav Havel
LHR
Heathrow
$127 Roundtrip, found 2 days ago
$127
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Oct 2 from Vaclav Havel to Heathrow, returning Sun, Oct 5, priced at $127 found 2 days ago
Thu, Sep 11 - Wed, Sep 17
PRG
Vaclav Havel
LHR
Heathrow
$129 Roundtrip, found 15 hours ago
$129
Roundtrip
found 15 hours ago
Select British Airways flight, departing Thu, Sep 11 from Vaclav Havel to Heathrow, returning Wed, Sep 17, priced at $129 found 15 hours ago
Thu, Nov 6 - Wed, Nov 12
PRG
Vaclav Havel
LHR
Heathrow
$138 Roundtrip, found 5 hours ago
$138
Roundtrip
found 5 hours ago
Select British Airways flight, departing Thu, Nov 6 from Vaclav Havel to Heathrow, returning Wed, Nov 12, priced at $138 found 5 hours ago
Thu, Nov 6 - Wed, Nov 12
PRG
Vaclav Havel
LHR
Heathrow
$147 Roundtrip, found 5 hours ago
$147
Roundtrip
found 5 hours ago
Select British Airways flight, departing Thu, Nov 6 from Vaclav Havel to Heathrow, returning Wed, Nov 12, priced at $147 found 5 hours ago
Fri, Jul 11 - Mon, Jul 14
PRG
Vaclav Havel
LHR
Heathrow
$149 Roundtrip, found 16 hours ago
$149
Roundtrip
found 16 hours ago
Select British Airways flight, departing Fri, Jul 11 from Vaclav Havel to Heathrow, returning Mon, Jul 14, priced at $149 found 16 hours ago
Thu, Oct 2 - Sun, Oct 5
PRG
Vaclav Havel
LHR
Heathrow
$153 Roundtrip, found 2 days ago
$153
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Oct 2 from Vaclav Havel to Heathrow, returning Sun, Oct 5, priced at $153 found 2 days ago
Thu, Oct 2 - Sun, Oct 5
PRG
Vaclav Havel
LHR
Heathrow
$156 Roundtrip, found 2 days ago
$156
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Oct 2 from Vaclav Havel to Heathrow, returning Sun, Oct 5, priced at $156 found 2 days ago
Thu, Nov 6 - Wed, Nov 12
PRG
Vaclav Havel
LHR
Heathrow
$158 Roundtrip, found 5 hours ago
$158
Roundtrip
found 5 hours ago
Select British Airways flight, departing Thu, Nov 6 from Vaclav Havel to Heathrow, returning Wed, Nov 12, priced at $158 found 5 hours ago

Frequently asked questions

What route does flight number BA857 take?
BA857 jets from Prague Airport (PRG-Vaclav Havel) to Heathrow Airport and flies direct. This service typically takes 2 hours.
What terminal does BA857 fly out of?
Travelers with seats booked on flight number BA857 from Václav Havel Airport Prague to Heathrow Airport normally jet out of Terminal 1.
What kind of plane is on flight number BA857?
The route for flight number BA857 is most commonly Prague Airport (PRG-Vaclav Havel) to Heathrow Airport (LHR), and the Airbus A320 is the type of aircraft you’re likely to be traveling on.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your BA857 flight with Travelocity, please visit our Customer Service Portal.