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YSJ to GAI: distance & flight time
St. John (Saint John Airport) → Gaithersburg (Montgomery County Airpark)
715 mi
1,151 km · 621 nm
2h 1m
estimated nonstop flight time
-1h
time difference · heading southwest
See live YSJ→GAI fares Phone-only fares on this route — call free
Flight time details
715 miles nonstop takes roughly 2h 1m gate to gate, flying southwest. 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
- YSJ — Saint John Airport · St. John, Canada
- GAI — Montgomery County Airpark · Gaithersburg, 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 YSJ
- YFC · Fredericton Airport49 mi away
- YZX · CFB Greenwood53 mi away
- YDG · Digby / Annapolis Regional Airport53 mi away
- YQM · Greater Moncton International Airport80 mi away
Near GAI
Frequently asked questions
How far is YSJ from GAI?
The flight distance from St. John (YSJ) to Gaithersburg (GAI) is 715 miles (1,151 km, 621 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSJ to GAI?
A nonstop flight takes about 2h 1m 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. John and Gaithersburg?
Gaithersburg is 1 hour behind St. John.
What is the cheapest way to fly from YSJ to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSJ–GAI that never appear on search engines, with no booking fees.