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GAI to HAF: distance & flight time
Gaithersburg (Montgomery County Airpark) → Half Moon Bay (Half Moon Bay Airport)
2,434 mi
3,917 km · 2,115 nm
5h 14m
estimated nonstop flight time
—
time difference · heading west
See live GAI→HAF fares Phone-only fares on this route — call free
Flight time details
2,434 miles nonstop takes roughly 5h 14m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- HAF — Half Moon Bay Airport · Half Moon Bay, 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 GAI
Near HAF
- SFO · San Francisco International Airport10 mi away
- SQL · San Carlos Airport14 mi away
- OAK · Metropolitan Oakland International Airport21 mi away
- PAO · Palo Alto Airport of Santa Clara County21 mi away
Frequently asked questions
How far is GAI from HAF?
The flight distance from Gaithersburg (GAI) to Half Moon Bay (HAF) is 2,434 miles (3,917 km, 2,115 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to HAF?
A nonstop flight takes about 5h 14m 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 cheapest way to fly from GAI to HAF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–HAF that never appear on search engines, with no booking fees.