Austrian Airlines Flight BA451 Deals & Information (2025/2026)

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Austrian Airlines Flight 451 Route Deals From $120

The cheapest prices found with in the last 7 days for return flights were $158 and $120 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 8 - Sat, Oct 18
VIE
Vienna Intl.
LHR
Heathrow
$158 Roundtrip, found 4 days ago
$158
Roundtrip
found 4 days ago
Select Austrian Airlines flight, departing Wed, Oct 8 from Vienna Intl. to Heathrow, returning Sat, Oct 18, priced at $158 found 4 days ago
Mon, Mar 2 - Thu, Mar 5
VIE
Vienna Intl.
LHR
Heathrow
$159 Roundtrip, found 2 hours ago
$159
Roundtrip
found 2 hours ago
Select Austrian Airlines flight, departing Mon, Mar 2 from Vienna Intl. to Heathrow, returning Thu, Mar 5, priced at $159 found 2 hours ago
Tue, Oct 7 - Tue, Oct 14
VIE
Vienna Intl.
LHR
Heathrow
$159 Roundtrip, found 11 hours ago
$159
Roundtrip
found 11 hours ago
Select Austrian Airlines flight, departing Tue, Oct 7 from Vienna Intl. to Heathrow, returning Tue, Oct 14, priced at $159 found 11 hours ago
Wed, Oct 8 - Sat, Oct 18
VIE
Vienna Intl.
LHR
Heathrow
$181 Roundtrip, found 4 days ago
$181
Roundtrip
found 4 days ago
Select Austrian Airlines flight, departing Wed, Oct 8 from Vienna Intl. to Heathrow, returning Sat, Oct 18, priced at $181 found 4 days ago
Sat, Mar 14 - Mon, Mar 16
VIE
Vienna Intl.
LHR
Heathrow
$187 Roundtrip, found 2 days ago
$187
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Sat, Mar 14 from Vienna Intl. to Heathrow, returning Mon, Mar 16, priced at $187 found 2 days ago
Mon, Mar 2 - Thu, Mar 5
VIE
Vienna Intl.
LHR
Heathrow
$191 Roundtrip, found 2 hours ago
$191
Roundtrip
found 2 hours ago
Select Austrian Airlines flight, departing Mon, Mar 2 from Vienna Intl. to Heathrow, returning Thu, Mar 5, priced at $191 found 2 hours ago
Wed, Oct 8 - Sat, Oct 18
VIE
Vienna Intl.
LHR
Heathrow
$194 Roundtrip, found 4 days ago
$194
Roundtrip
found 4 days ago
Select Austrian Airlines flight, departing Wed, Oct 8 from Vienna Intl. to Heathrow, returning Sat, Oct 18, priced at $194 found 4 days ago
Sat, Mar 14 - Mon, Mar 16
VIE
Vienna Intl.
LHR
Heathrow
$195 Roundtrip, found 2 days ago
$195
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Sat, Mar 14 from Vienna Intl. to Heathrow, returning Mon, Mar 16, priced at $195 found 2 days ago
Mon, Mar 2 - Thu, Mar 5
VIE
Vienna Intl.
LHR
Heathrow
$195 Roundtrip, found 2 hours ago
$195
Roundtrip
found 2 hours ago
Select Austrian Airlines flight, departing Mon, Mar 2 from Vienna Intl. to Heathrow, returning Thu, Mar 5, priced at $195 found 2 hours ago
Mon, Mar 2 - Thu, Mar 5
VIE
Vienna Intl.
LHR
Heathrow
$197 Roundtrip, found 2 hours ago
$197
Roundtrip
found 2 hours ago
Select Austrian Airlines flight, departing Mon, Mar 2 from Vienna Intl. to Heathrow, returning Thu, Mar 5, priced at $197 found 2 hours ago
Wed, Oct 8 - Sat, Oct 18
VIE
Vienna Intl.
LHR
Heathrow
$205 Roundtrip, found 4 days ago
$205
Roundtrip
found 4 days ago
Select Austrian Airlines flight, departing Wed, Oct 8 from Vienna Intl. to Heathrow, returning Sat, Oct 18, priced at $205 found 4 days ago

Frequently asked questions

What route does flight number OS451 take?
OS451 jets between Vienna Airport (VIE-Vienna Intl.) and Heathrow Airport and flies direct. This journey usually takes 2 hours and 30 minutes.
What terminal does OS451 fly out of?
Direct flights between Vienna Intl. Airport (VIE) and London Airport (LHR-Heathrow) are served by OS451, and passengers who travel on this flight usually board from Terminal 3.
What kind of plane is on flight number OS451?
There's every chance you'll be on the Airbus A321 if you're on flight number OS451. This flight typically heads off from Vienna Intl. Airport (VIE) and arrives at LHR.
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 OS451 flight with Travelocity, please visit our Customer Service Portal.