British Airways flights from London to Seattle (LON - SEA)

• Can I get a flight from London to Seattle on British Airways for under £800?

  There are 4 flights available on British Airways from London to Seattle for under £800. These prices can change based on many factors including date and time. To find LON-SEA flight prices for your dates, click here.

• How do most travelers feel about British Airways?

  When planning your LON-SEA trip, keep in mind that British Airways is typically rated 8.0/10. This rating comes from 10,826 reviews by Cheapflights users who have traveled with British Airways.

Currently, the most affordable month to book a British Airways flight from London to Seattle in December, with an average price of £594. Conversely, traveling with British Airways from London to Seattle in July will be the most expensive, with an average cost of £802. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).