British Airways Flight VS274 Deals & Information (2025/2026)

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British Airways Flight 274 Route Deals From $438

The cheapest prices found with in the last 7 days for return flights were $568 and $438 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 6 - Tue, Oct 14
LAS
Harry Reid Intl.
LHR
Heathrow
$568 Roundtrip, found 3 hours ago
$568
Roundtrip
found 3 hours ago
Select British Airways flight, departing Mon, Oct 6 from Harry Reid Intl. to Heathrow, returning Tue, Oct 14, priced at $568 found 3 hours ago
Sun, Nov 30 - Tue, Dec 9
LAS
Harry Reid Intl.
LHR
Heathrow
$568 Roundtrip, found 4 hours ago
$568
Roundtrip
found 4 hours ago
Select British Airways flight, departing Sun, Nov 30 from Harry Reid Intl. to Heathrow, returning Tue, Dec 9, priced at $568 found 4 hours ago
Wed, Mar 25 - Thu, Apr 2
LAS
Harry Reid Intl.
LHR
Heathrow
$583 Roundtrip, found 1 day ago
$583
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Mar 25 from Harry Reid Intl. to Heathrow, returning Thu, Apr 2, priced at $583 found 1 day ago
Wed, Apr 22 - Wed, Apr 29
LAS
Harry Reid Intl.
LHR
Heathrow
$588 Roundtrip, found 1 day ago
$588
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Apr 22 from Harry Reid Intl. to Heathrow, returning Wed, Apr 29, priced at $588 found 1 day ago
Tue, Apr 14 - Tue, Apr 21
LAS
Harry Reid Intl.
LHR
Heathrow
$588 Roundtrip, found 14 hours ago
$588
Roundtrip
found 14 hours ago
Select British Airways flight, departing Tue, Apr 14 from Harry Reid Intl. to Heathrow, returning Tue, Apr 21, priced at $588 found 14 hours ago

Frequently asked questions

What route does flight number BA274 take?
BA274 jets between McCarran Intl. Airport (LAS) and LHR and is a direct flight. This service generally takes 10 hours and 15 minutes.
How often is BA274 on time?
People flying on British Airways flight number BA274 should be aware that 70% of these flights take off on schedule. If you encounter a delay, the typical wait time is approximately 36 minutes. This service has a 0.45-star rating.
What terminal does BA274 fly out of?
Flights between Las Vegas, NV Airport (LAS-McCarran Intl.) and London Airport (LHR-Heathrow) are served by BA274, and passengers who travel on this route usually take off from Terminal 3.
What kind of plane is on flight number BA274?
You're likely to find yourself traveling aboard a Boeing 777 if you're on flight number BA274. This flight almost always leaves from McCarran Intl. Airport (LAS) and touches down at London Airport (LHR-Heathrow).
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 BA274 flight with Travelocity, please visit our Customer Service Portal.