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HAF to ALN: distance & flight time
Half Moon Bay (Half Moon Bay Airport) → Alton/St Louis (St Louis Regional Airport)
1,755 mi
2,825 km · 1,525 nm
3h 55m
estimated nonstop flight time
—
time difference · heading east
See live HAF→ALN fares Phone-only fares on this route — call free
Flight time details
1,755 miles nonstop takes roughly 3h 55m gate to gate, flying east. 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
- HAF — Half Moon Bay Airport · Half Moon Bay, United States
- ALN — St Louis Regional Airport · Alton/St Louis, 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 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
Near ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is HAF from ALN?
The flight distance from Half Moon Bay (HAF) to Alton/St Louis (ALN) is 1,755 miles (2,825 km, 1,525 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HAF to ALN?
A nonstop flight takes about 3h 55m 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 HAF to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HAF–ALN that never appear on search engines, with no booking fees.