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Cheap LHR to SEA Flights

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

London

$447.61

$547.81

$557.51

$5,178.21

Southend-on-Sea

$1,330.58

Cheap LHR to SEA Flights

Question : Which airline has been on time from London Heathrow Airport (LHR) to Seattle-Tacoma International Airport (SEA) the most?
Answer : Delta Air Lines leads the way with a 97% on-time rate. Spend as little time in an airport as necessary by flying with Delta Air Lines. If they are delayed for some reason, it will be just a six-minute delay, as that’s the average.

Question : What are the chances this flight will be delayed?
Answer : This particular route gets passengers to Seattle-Tacoma International Airport on time 78% of the time, which puts it in the top half of the world. When there is a delay, it averages less than half an hour.

Question : How much should a trip from London (LHR) to Seattle (SEA) cost?
Answer : Prices for this trip tend to fluctuate much more than other flights from the United Kingdom. They can range anywhere from $491 to $9,843. The further out you book a route, the more likely you are to save.

Question : What's the expected flight time for LHR to SEA?
Answer : The average flight duration between LHR and SEA is nine hours and 56 minutes.

Question : Which airline is giving the best deals for round-trip flights from London Heathrow Airport (LHR) to Seattle-Tacoma International Airport (SEA)?
Answer : Icelandair is the leader in keeping prices down for their passengers over the next three months. Fares are being booked at just $491 and, when compared to the more expensive bookings of $9,843, it's quite a deal.

Question : From London to Seattle, which day of the week is going to have the most flight times?
Answer : With six total flight time options, Saturday provides the most flexibility from LHR to SEA. The day of the week with the fewest number of options is Wednesday with only three different times.

Question : Have you considered flying out of an airport besides London Heathrow Airport (LHR)?
Answer : London City Airport is just 22 miles away, and, on average, flights are 55% cheaper for the upcoming months. Save now and put it towards your next adventure.

London to Seattle 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 London to Seattle 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 Seattle.

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 LHR to SEA flights that won’t make your bank account wince. Ready to temporarily leave behind London 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 SEA 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.