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Cheap SEA to LHR Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

London

$555.90

$657.21

$671.21

$755.21

Southend-on-Sea

$662.21

Cheap SEA to LHR Flights

Question : How much is a plane ticket to London (LHR) from Seattle (SEA)?
Answer : Prices vary anywhere from $405 to $10,012. Booking in advance can usually help you get the cheapest rate. Prices are usually cheaper the further out you book.

Question : How long does it take to fly from Seattle to London?
Answer : The average flight from SEA and LHR takes around nine hours and 33 minutes. Remember, there is a time change of eight hours.

Question : Can I change the date of my flight?
Answer : You sure can switch your departure date and you may save yourself some money by doing it. The lowest-cost day to fly in February is Tuesday. Being flexible with your travel days can provide you extra savings when booking.

Question : How much time do people spend in London?
Answer : The average time spent hanging out in London by travelers from Seattle is two weeks.

Question : What is the cheapest day to fly?
Answer : The cheapest day to fly from Seattle to London is on Tuesday. If you would like to save a bit of cash on your next business trip look for flights on that day.

Question : What day has the most flight time options?
Answer : When you’re flying from SEA to LHR, the day with the most flight times is Saturday, with six different options. However, with only four flight times, Wednesday doesn't offer quite as many options when finding that perfect departure time.

Question : How many flights are there per day from Seattle to London?
Answer : The number of flight times varies by day of the week, but on average, SEA to LHR sees five different choices. Compared to the average route departing the United States with nine flight times, you'll have fewer options.

Seattle to London Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to London will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring London.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to LHR flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LHR with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.