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HYC to SEA: distance & flight time
Wycombe (Wycombe Air Park) → Seattle (Seattle Tacoma International Airport)
4,769 mi
7,675 km · 4,144 nm
9h 49m
estimated nonstop flight time
-8h
time difference · heading northwest
See live HYC→SEA fares Phone-only fares on this route — call free
Flight time details
4,769 miles nonstop takes roughly 9h 49m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- HYC — Wycombe Air Park · Wycombe, United Kingdom
- SEA — Seattle Tacoma 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 HYC
- LHR · London Heathrow Airport18 mi away
- LGW · London Gatwick Airport42 mi away
- BEX · RAF Benson12 mi away
- NHT · RAF Northolt17 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is HYC from SEA?
The flight distance from Wycombe (HYC) to Seattle (SEA) is 4,769 miles (7,675 km, 4,144 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HYC to SEA?
A nonstop flight takes about 9h 49m 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 Wycombe and Seattle?
Seattle is 8 hours behind Wycombe.
What is the cheapest way to fly from HYC to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HYC–SEA that never appear on search engines, with no booking fees.