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GTF to YSP: distance & flight time
Great Falls (Great Falls International Airport) → Marathon (Marathon Airport)
1,153 mi
1,855 km · 1,002 nm
2h 58m
estimated nonstop flight time
+2h
time difference · heading east
See live GTF→YSP fares Phone-only fares on this route — call free
Flight time details
1,153 miles nonstop takes roughly 2h 58m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- YSP — Marathon Airport · Marathon, Canada
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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Near YSP
- YMG · Manitouwadge Airport32 mi away
- YGQ · Geraldton Greenstone Regional Airport76 mi away
- YHN · Hornepayne Municipal Airport78 mi away
- YXZ · Wawa Airport90 mi away
Frequently asked questions
How far is GTF from YSP?
The flight distance from Great Falls (GTF) to Marathon (YSP) is 1,153 miles (1,855 km, 1,002 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to YSP?
A nonstop flight takes about 2h 58m 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 Great Falls and Marathon?
Marathon is 2 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to YSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–YSP that never appear on search engines, with no booking fees.