British Airways Flight A3631 Deals & Information (2025/2026)

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British Airways Flight 631 Route Deals From $63

The cheapest prices found with in the last 7 days for return flights were $152 and $63 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 11 - Sun, Nov 16
ATH
Eleftherios Venizelos
LHR
Heathrow
$152 Roundtrip, found 5 days ago
$152
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, Nov 11 from Eleftherios Venizelos to Heathrow, returning Sun, Nov 16, priced at $152 found 5 days ago
Tue, Nov 11 - Sun, Nov 16
ATH
Eleftherios Venizelos
LHR
Heathrow
$158 Roundtrip, found 5 days ago
$158
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, Nov 11 from Eleftherios Venizelos to Heathrow, returning Sun, Nov 16, priced at $158 found 5 days ago
Mon, Nov 17 - Thu, Nov 20
ATH
Eleftherios Venizelos
LHR
Heathrow
$178 Roundtrip, found 21 hours ago
$178
Roundtrip
found 21 hours ago
Select British Airways flight, departing Mon, Nov 17 from Eleftherios Venizelos to Heathrow, returning Thu, Nov 20, priced at $178 found 21 hours ago
Mon, Nov 17 - Sun, Nov 23
ATH
Eleftherios Venizelos
LHR
Heathrow
$178 Roundtrip, found 1 day ago
$178
Roundtrip
found 1 day ago
Select British Airways flight, departing Mon, Nov 17 from Eleftherios Venizelos to Heathrow, returning Sun, Nov 23, priced at $178 found 1 day ago
Sat, Dec 6 - Thu, Dec 11
ATH
Eleftherios Venizelos
LHR
Heathrow
$179 Roundtrip, found 4 days ago
$179
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 6 from Eleftherios Venizelos to Heathrow, returning Thu, Dec 11, priced at $179 found 4 days ago
Tue, Nov 11 - Mon, Nov 17
ATH
Eleftherios Venizelos
LHR
Heathrow
$180 Roundtrip, found 5 days ago
$180
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, Nov 11 from Eleftherios Venizelos to Heathrow, returning Mon, Nov 17, priced at $180 found 5 days ago
Sat, Dec 20 - Mon, Jan 5
ATH
Eleftherios Venizelos
LHR
Heathrow
$184 Roundtrip, found 5 days ago
$184
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Dec 20 from Eleftherios Venizelos to Heathrow, returning Mon, Jan 5, priced at $184 found 5 days ago
Sat, Dec 20 - Mon, Jan 5
ATH
Eleftherios Venizelos
LHR
Heathrow
$185 Roundtrip, found 5 days ago
$185
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Dec 20 from Eleftherios Venizelos to Heathrow, returning Mon, Jan 5, priced at $185 found 5 days ago
Thu, Nov 27 - Wed, Dec 3
ATH
Eleftherios Venizelos
LHR
Heathrow
$188 Roundtrip, found 1 day ago
$188
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Nov 27 from Eleftherios Venizelos to Heathrow, returning Wed, Dec 3, priced at $188 found 1 day ago
Sat, Feb 21 - Wed, Feb 25
ATH
Eleftherios Venizelos
LHR
Heathrow
$191 Roundtrip, found 4 days ago
$191
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Feb 21 from Eleftherios Venizelos to Heathrow, returning Wed, Feb 25, priced at $191 found 4 days ago
Thu, Mar 26 - Mon, Mar 30
ATH
Eleftherios Venizelos
LHR
Heathrow
$192 Roundtrip, found 6 days ago
$192
Roundtrip
found 6 days ago
Select British Airways flight, departing Thu, Mar 26 from Eleftherios Venizelos to Heathrow, returning Mon, Mar 30, priced at $192 found 6 days ago
Thu, Mar 26 - Mon, Mar 30
ATH
Eleftherios Venizelos
LHR
Heathrow
$199 Roundtrip, found 6 days ago
$199
Roundtrip
found 6 days ago
Select British Airways flight, departing Thu, Mar 26 from Eleftherios Venizelos to Heathrow, returning Mon, Mar 30, priced at $199 found 6 days ago