British Airways flights from SeaTac (SEA) to London (LHR)
Find comprehensive British Airways flight information, schedules, and booking details for direct flights from SeaTac (SEA), US to London (LHR), GB. British Airways operates 2-4 flights daily flights on this route.• Flight Duration: 9h 15m - 10h 50m (average flight time)• Distance: 4812 miles (7743 km) (air miles between airports)• Daily Flights: 2-4 flights (scheduled departures per day)
SeaTac (SEA)
US
London (LHR)
GB
FLIGHT TIME
9h 15m - 10h 50m
FLIGHT DISTANCE
4812 miles (7743 km)
9h 30m - 9h 30m
18:50
18:50
4812 miles (7743 km)
March
1 (Show)
21
Terminal 3 (LHR)
British Airways Flight Schedule from SeaTac (SEA) to London (LHR)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
BA48 |  British Airways | 18:50 | 12:20:00 | Boeing 777-300ER |
British Airways Monthly Flight Calendar
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Route Insights
Pricing patterns: March typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 18:00, offering more flight options and potentially better connections.
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British Airways Policy Highlights
Baggage Policy
Economy Class: 23kg, Business Class: 32kg, First Class: 32kg. Additional charges apply for excess baggage.
For detailed baggage policies, visit British Airways airline page or British Airways official website.
Check-in Information
Online check-in available 24 hours before departure.
British Airways Terminal Information
Departure Terminal at SeaTac (SEA):
Arrival Terminal at London (LHR):
• British Airways flights to London (LHR) arrive at Terminal Terminal 3
• Terminal Terminal 3: British Airways operates from this terminal
Frequently Asked Questions about British Airways Flights
How many British Airways flights operate from Seattle (SEA) to London (LHR)?
British Airways operates 1 flight from Seattle (SEA) to London (LHR).
What city does London (LHR) airport serve?
London (LHR) airport serves London, GB.
How long is the British Airways flight from Seattle (SEA) to London (LHR)?
The flight duration is approximately 9h 15m - 10h 50m.
What is the distance from Seattle (SEA) to London (LHR)?
The distance is 4812 miles (7743 km).
What aircraft does British Airways use on this route?
British Airways uses Boeing 777-300ER on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: Delta Air Lines, Virgin Atlantic.
Which terminal does British Airways use at London (LHR)?
British Airways flights to London (LHR) arrive at Terminal Terminal 3.
What is the cheapest month to fly British Airways from Seattle (SEA) to London (LHR)?
March is typically the cheapest month to fly British Airways on this route.
What is the average price for a British Airways flight from Seattle (SEA) to London (LHR)?
The average price for a round-trip British Airways flight on this route is approximately $856. Prices can vary based on booking time and demand.
How many British Airways flights operate per week on this route?
British Airways operates approximately 21 flights per week from Seattle (SEA) to London (LHR).