Need help booking?
Unpublished phone-only deals available
YST to IAG: distance & flight time
St. Theresa Point (St. Theresa Point Airport) → Niagara Falls (Niagara Falls International Airport)
1,035 mi
1,666 km · 900 nm
2h 43m
estimated nonstop flight time
+1h
time difference · heading southeast
See live YST→IAG fares Phone-only fares on this route — call free
Flight time details
1,035 miles nonstop takes roughly 2h 43m gate to gate, flying southeast. 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
- YST — St. Theresa Point Airport · St. Theresa Point, Canada
- IAG — Niagara Falls International Airport · Niagara Falls, 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 IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 mi away
Frequently asked questions
How far is YST from IAG?
The flight distance from St. Theresa Point (YST) to Niagara Falls (IAG) is 1,035 miles (1,666 km, 900 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YST to IAG?
A nonstop flight takes about 2h 43m 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 St. Theresa Point and Niagara Falls?
Niagara Falls is 1 hour ahead of St. Theresa Point.
What is the cheapest way to fly from YST to IAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YST–IAG that never appear on search engines, with no booking fees.