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YST to MFI: distance & flight time
St. Theresa Point (St. Theresa Point Airport) → Marshfield (Marshfield Municipal Airport)
670 mi
1,078 km · 582 nm
1h 55m
estimated nonstop flight time
Same time
time difference · heading south
See live YST→MFI fares Phone-only fares on this route — call free
Flight time details
670 miles nonstop takes roughly 1h 55m gate to gate, flying south. 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
- YST — St. Theresa Point Airport · St. Theresa Point, Canada
- MFI — Marshfield Municipal Airport · Marshfield, 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 YST
- YIV · Island Lake Airport8 mi away
- YGO · Gods Lake Narrows Airport51 mi away
- YRS · Red Sucker Lake Airport57 mi away
- ZGI · Gods River Airport75 mi away
Near MFI
- ISW · Alexander Field South Wood County Airport26 mi away
- CWA · Central Wisconsin Airport27 mi away
- STE · Stevens Point Municipal Airport33 mi away
- AUW · Wausau Downtown Airport34 mi away
Frequently asked questions
How far is YST from MFI?
The flight distance from St. Theresa Point (YST) to Marshfield (MFI) is 670 miles (1,078 km, 582 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YST to MFI?
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 YST to MFI?
Nonstop service on YST–MFI 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 cheapest way to fly from YST to MFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YST–MFI that never appear on search engines, with no booking fees.
Why are some YST to MFI fares phone-only?
Consolidator contracts let us sell certain YST–MFI 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.