Cheap flights from Seattle to London from C$ 315

Currently, August is the cheapest month in which you can book a flight from Seattle to London, Ontario (average of C$ 333). Flying from Seattle to London, Ontario in November is currently the most expensive (average of C$ 555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

• Can I find flights from Seattle to London, Ontario for under C$ 600 on Cheapflights?

  Yes, there are multiple flights from Seattle to London, Ontario for under C$ 600. The cheapest flight booked recently is on WestJet for just C$ 594, but on average you can expect to pay C$ 745.

• Are there last-minute flights available from Seattle to London, Ontario for under C$ 700?

  There are currently 3+ open flights from Seattle to London, Ontario within the next 7 days for less than C$ 700.

• What are the cheapest airlines flying from Seattle to London, Ontario round-trip?

  WestJet, at C$ 594, was found to be the cheapest airline from Seattle to London, Ontario. An alternate airline flying to your destination would be Air Canada.

• What does SEA to YXU mean?

  Seattle/Tacoma Intl Airport is SEA and London Airport is YXU. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

• Can I find deals for flights from Seattle to London that include extra baggage allowance?

  The amount of baggage you can bring on your Seattle to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from Seattle to London with specific airlines?

  Yes, Cheapflights allows you to browse and filter Seattle to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from Seattle to London that include hotel bookings?

  Yes. In addition to deals on Seattle to London flights, Cheapflights offers vacation packages that include both flights and hotel.

• How can I find direct flights from Seattle to London?

  After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London.

• Can I find deals for business class flights from Seattle to London?

  Yes. Cheapflights offers flight deals from Seattle to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

• Can I find deals for flights from Seattle to London that allow pets onboard?

  Many airlines flying from Seattle to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from Seattle to London?

  Yes, you can often find last-minute deals on Seattle to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the Seattle to London, Ontario flight deals updated?

  The Seattle to London, Ontario flight deals you see on this page were last updated on 7/5.