A business jet on a wet ramp at twilight with its navigation lights reflected in standing water and stars overhead

EGGW to KBFI 4,138 nm NW 322 degrees true

Private Jet CharterLondon to Seattle

4,138 nautical miles direct. About 9h 00m nonstop in a ultra long range jet. Operators bid on this leg without knowing who is flying it.

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Great circle

4,138nm

7,663 km, 4,762 statute miles

Initial track

322°T NW

Departing EGGW toward KBFI

Nonstop block time

9h 00m

In a ultra long range jet, the smallest reference class that flies it nonstop

Clock change

-8h

Seattle against London, year round

The leg

London to Seattle

Measured airport to airport, LTN to BFI is 4,138 nautical miles. A ultra long range jet does it nonstop in something close to 9h 00m once taxi, climb and descent are counted.

At this range the question stops being which cabin you prefer and becomes which aircraft can physically do it. Most of the light and midsize market cannot, and the ones that can will be doing it with a technical stop. Seattle runs 8 hours behind of London year round, which is worth building into the schedule at both ends.

You do not need a large cabin for the distance. A Dassault Falcon 7X in the heavy jet class covers it nonstop with margin left over. A further 3 aircraft can do it nonstop on a good day, and those are the quotes worth reading carefully. A marginal leg becomes a fuel stop the moment the winds turn, the cabin fills, or the departure field is hot and high. 31 of the aircraft we track cannot make it without stopping at all, which does not rule them out. A stop on a cheaper airframe sometimes still wins on total cost, and the bid comparison will show you whether it does.

Book range figures assume long range cruise, standard reserves and a stated payload. Load the cabin, add bags, put the departure field at elevation on a hot afternoon, and the real number comes down. We treat anything above roughly 80 percent of book range as a leg that needs the operator to confirm against the specific tail number rather than the brochure.

Orthographic projection, great circle track Static plot

Aircraft

What flies this leg, and how fast

Block time and nonstop capability across the classes for 4,138 nautical miles. Times are planning estimates in still air.

Aircraft comparison for London to Seattle
Aircraft	Class	Seats	Block time	Book range	This leg
Cessna Citation M2 Gen2	Very Light Jet	6	10h 48m	1,550 nm	Fuel stop
Embraer Phenom 300E	Light Jet	8	9h 27m	2,010 nm	Fuel stop
Cessna Citation XLS+	Midsize Jet	9	9h 55m	2,100 nm	Fuel stop
Bombardier Challenger 350	Super Midsize Jet	9	9h 20m	3,200 nm	Fuel stop
Gulfstream G450	Heavy Jet	13	9h 13m	4,350 nm	Fuel stop
Gulfstream G650ER	Ultra Long Range Jet	14	9h 00m	7,500 nm	Nonstop

Airports

Which runway you actually use

Departing London. Most charter traffic uses London Luton (EGGW / LTN). The credible alternates are Farnborough (FAB), London Biggin Hill (BQH), London City (LCY) and Heathrow (LHR). Which one you leave from is worth deciding on ground time rather than on the map, because twenty minutes of extra driving often buys a cheaper ramp and a faster departure.

London City requires a 5.5 degree steep approach certification for both the aircraft and the crew. Farnborough and Biggin Hill both operate movement caps and defined hours.

Arriving Seattle. Most charter traffic uses Boeing Field King County (KBFI / BFI). The credible alternates are Seattle Tacoma International (SEA) and Paine Field (PAE). Pick the one closest to where you are actually going. The airport with the famous name is frequently the wrong answer.

Runway length, ramp space and operating hours at the arrival field decide the aircraft as often as range does. Have the operator confirm all three against the tail number they are offering.

Airport	ICAO	IATA	Metro	End	Role
London Luton	EGGW	LTN	London	Departure	Preferred
Farnborough	EGLF	FAB	London	Departure	Alternate
London Biggin Hill	EGKB	BQH	London	Departure	Alternate
London City	EGLC	LCY	London	Departure	Alternate
Heathrow	EGLL	LHR	London	Departure	Customs
Boeing Field King County	KBFI	BFI	Seattle	Arrival	Preferred
Seattle Tacoma International	KSEA	SEA	Seattle	Arrival	Customs
Paine Field	KPAE	PAE	Seattle	Arrival	Alternate

Cost

What moves the number

We do not publish a price for this route, and neither should anyone else. Here is what the number is actually made of.

Positioning. Where the aircraft sits when you call. If it is already on your departure ramp you pay for your legs only. If it has to fly in empty and fly home afterwards, someone pays for that, and it is you.
Daily minimum. Most operators bill a minimum number of flight hours per day the aircraft is away. A short leg with a three night stay can price higher than a long leg that returns the same day.
Crew duty. A crew has a legal duty limit. Cross enough time zones or depart late enough and the trip needs a second crew or an overnight, and both cost money.
Ramp and handling. Landing fees, ramp fees, overnight parking and the FBO handling charge vary enormously between fields in the same metro.
Peak days. Operators apply surcharges around the predictable weekends. Thanksgiving Sunday, the Super Bowl, Art Basel, the Fourth of July and the ski season change of week all price differently.
Fuel and stops. A technical stop costs fuel to climb back to altitude, a landing fee, handling, and forty five minutes to an hour of ground time.
De-icing. Winter departures from northern fields add de-icing, which is charged by volume of fluid and can be a serious number on a large aircraft.
International handling. Customs, immigration, overflight permits, landing permits and a local handling agent. On some routings the permits need days of lead time.

Our fee sits on top of the operator price as its own line, visible, so you can see both halves. Send the trip and the operators bid against each other on all of the above at once.

Timing

Season, weather and the clock

The great circle track reaches 68 degrees of latitude, which is further north than the map projection suggests. That routing brings North Atlantic track structure and oceanic clearance requirements into the flight plan.

A white and blue business jet in cruise flight above red desert terrain seen from above and ahead — LTN to BFI

Questions

LTN to BFI

How long is a private jet flight from London to Seattle?

The great circle distance is 4,138 nautical miles, which is about 7,663 km. A ultra long range jet covers it nonstop in roughly 9h 00m block to block. A heavy jet flies the distance in about 9h 13m, and a light jet in about 9h 27m if it can make it without stopping. These are planning estimates in still air and exclude winds and air traffic routing.

Can a light jet fly London to Seattle nonstop?

No. This leg needs about 210 percent of a light jet's published range, so plan on a fuel stop or move up to a class with the legs for it. The smallest aircraft that does it nonstop with margin is the Dassault Falcon 7X.

Which airport should I use in Seattle?

Boeing Field King County (KBFI) handles most charter traffic. The alternates are Seattle Tacoma International (SEA) and Paine Field (PAE). Choose on ground time to your final address rather than on the name you recognise.

Do I clear customs on a private flight from London to Seattle?

Yes. Crossing a border on a private aircraft still means customs and immigration at both ends, but it happens at the private terminal rather than in a terminal queue, and it is usually a matter of minutes. The operator files the passenger manifest in advance, so passport details are needed before departure rather than at the airport. Some routings also need landing or overflight permits with days of lead time, which is worth raising early.

What does a private jet from London to Seattle cost?

We do not publish a figure, because a fixed number for this route would be invented. The dominant variable is where the aircraft is parked when you call, not the aircraft type. Positioning legs, daily minimums, crew duty, ramp fees, peak day surcharges and taxes all move the total. Send the trip through the quote form and certificated operators bid against each other on it, sealed, without knowing who you are.

Are empty legs available on this route?

Sometimes. An empty leg exists when an operator has to reposition an aircraft along this track anyway, so the timing is theirs and not yours. They appear and vanish with little notice and get cancelled when the paying trip behind them changes. Flag empty legs on the quote form and we will include any that fit your window, but do not build a fixed commitment around one.

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