Austrian Airlines Flight 451 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 $175 and $120 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Nov 7 - Thu, Nov 13
VIE
Vienna Intl.
LHR
Heathrow
$175 Roundtrip, found 3 days ago
$175
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Fri, Nov 7 from Vienna Intl. to Heathrow, returning Thu, Nov 13, priced at $175 found 3 days ago
Thu, Sep 25 - Tue, Sep 30
VIE
Vienna Intl.
LHR
Heathrow
$196 Roundtrip, found 6 days ago
$196
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Thu, Sep 25 from Vienna Intl. to Heathrow, returning Tue, Sep 30, priced at $196 found 6 days ago
Thu, Sep 18 - Mon, Sep 22
VIE
Vienna Intl.
LHR
Heathrow
$198 Roundtrip, found 4 days ago
$198
Roundtrip
found 4 days ago
Select Austrian Airlines flight, departing Thu, Sep 18 from Vienna Intl. to Heathrow, returning Mon, Sep 22, priced at $198 found 4 days ago
Fri, Oct 17 - Sun, Oct 19
VIE
Vienna Intl.
LHR
Heathrow
$199 Roundtrip, found 2 days ago
$199
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Fri, Oct 17 from Vienna Intl. to Heathrow, returning Sun, Oct 19, priced at $199 found 2 days ago
Thu, Apr 2 - Sat, Apr 11
VIE
Vienna Intl.
LHR
Heathrow
$199 Roundtrip, found 3 days ago
$199
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Thu, Apr 2 from Vienna Intl. to Heathrow, returning Sat, Apr 11, priced at $199 found 3 days ago
Fri, Feb 20 - Sun, Feb 22
VIE
Vienna Intl.
LHR
Heathrow
$202 Roundtrip, found 9 hours ago
$202
Roundtrip
found 9 hours ago
Select Austrian Airlines flight, departing Fri, Feb 20 from Vienna Intl. to Heathrow, returning Sun, Feb 22, priced at $202 found 9 hours 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.