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YSM to MMH: distance & flight time
Fort Smith (Fort Smith Airport) → Mammoth Lakes (Mammoth Yosemite Airport)
1,577 mi
2,538 km · 1,370 nm
3h 33m
estimated nonstop flight time
-1h
time difference · heading south
See live YSM→MMH fares Phone-only fares on this route — call free
Flight time details
1,577 miles nonstop takes roughly 3h 33m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- YSM — Fort Smith Airport · Fort Smith, Canada
- MMH — Mammoth Yosemite Airport · Mammoth Lakes, 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 YSM
- YPY · Fort Chipewyan Airport92 mi away
- YFR · Fort Resolution Airport99 mi away
- YBE · Uranium City Airport125 mi away
- YHY · Hay River / Merlyn Carter Airport142 mi away
Near MMH
- BIH · Eastern Sierra Regional Airport31 mi away
- RMY · Mariposa Yosemite Airport66 mi away
- FAT · Fresno Yosemite International Airport76 mi away
- MAE · Madera Municipal Airport83 mi away
Frequently asked questions
How far is YSM from MMH?
The flight distance from Fort Smith (YSM) to Mammoth Lakes (MMH) is 1,577 miles (2,538 km, 1,370 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSM to MMH?
A nonstop flight takes about 3h 33m 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 YSM to MMH?
Nonstop service on YSM–MMH 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 3h 33m nonstop estimate.
What is the time difference between Fort Smith and Mammoth Lakes?
Mammoth Lakes is 1 hour behind Fort Smith.
What is the cheapest way to fly from YSM to MMH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSM–MMH that never appear on search engines, with no booking fees.
Why are some YSM to MMH fares phone-only?
Consolidator contracts let us sell certain YSM–MMH 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.