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LLY to BFI: distance & flight time
Mount Holly (South Jersey Regional Airport) → Seattle (Boeing Field King County International Airport)
2,387 mi
3,842 km · 2,075 nm
5h 9m
estimated nonstop flight time
-3h
time difference · heading northwest
See live LLY→BFI fares Phone-only fares on this route — call free
Flight time details
2,387 miles nonstop takes roughly 5h 9m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- LLY — South Jersey Regional Airport · Mount Holly, United States
- BFI — Boeing Field King County International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near LLY
- PHL · Philadelphia International Airport22 mi away
- PNE · Northeast Philadelphia Airport13 mi away
- WRI · Mc Guire Air Force Base14 mi away
- TTN · Trenton Mercer Airport23 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is LLY from BFI?
The flight distance from Mount Holly (LLY) to Seattle (BFI) is 2,387 miles (3,842 km, 2,075 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LLY to BFI?
A nonstop flight takes about 5h 9m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Mount Holly and Seattle?
Seattle is 3 hours behind Mount Holly.
What is the cheapest way to fly from LLY to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LLY–BFI that never appear on search engines, with no booking fees.