Need help booking?
Unpublished phone-only deals available
LAM to FSM: distance & flight time
Los Alamos (Los Alamos Airport) → Fort Smith (Fort Smith Regional Airport)
669 mi
1,077 km · 582 nm
1h 55m
estimated nonstop flight time
+1h
time difference · heading east
See live LAM→FSM fares Phone-only fares on this route — call free
Flight time details
669 miles nonstop takes roughly 1h 55m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- LAM — Los Alamos Airport · Los Alamos, United States
- FSM — Fort Smith Regional Airport · Fort Smith, 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 LAM
- SAF · Santa Fe Municipal Airport21 mi away
- TSM · Taos Regional Airport52 mi away
- ABQ · Albuquerque International Sunport61 mi away
- LVS · Las Vegas Municipal Airport65 mi away
Near FSM
- FYV · Drake Field47 mi away
- XNA · Northwest Arkansas Regional Airport65 mi away
- MLC · Mc Alester Regional Airport86 mi away
- OKM · Okmulgee Regional Airport92 mi away
Frequently asked questions
How far is LAM from FSM?
The flight distance from Los Alamos (LAM) to Fort Smith (FSM) is 669 miles (1,077 km, 582 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LAM to FSM?
A nonstop flight takes about 1h 55m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from LAM to FSM?
Nonstop service on LAM–FSM depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 55m nonstop estimate.
What is the time difference between Los Alamos and Fort Smith?
Fort Smith is 1 hour ahead of Los Alamos.
What is the cheapest way to fly from LAM to FSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LAM–FSM that never appear on search engines, with no booking fees.
Why are some LAM to FSM fares phone-only?
Consolidator contracts let us sell certain LAM–FSM tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.