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ONT to GRO: distance & flight time
Ontario (Ontario International Airport) → Gerona (Girona Airport)
5,972 mi
9,610 km · 5,189 nm
12h 11m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→GRO fares Phone-only fares on this route — call free
Flight time details
5,972 miles nonstop takes roughly 12h 11m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- GRO — Girona Airport · Gerona, Spain
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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near GRO
- BCN · Barcelona International Airport55 mi away
- QSA · Sabadell Airport43 mi away
- PGF · Perpignan-Rivesaltes (Llabanère) Airport58 mi away
- LEU · Pirineus - la Seu d'Urgel Airport76 mi away
Frequently asked questions
How far is ONT from GRO?
The flight distance from Ontario (ONT) to Gerona (GRO) is 5,972 miles (9,610 km, 5,189 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to GRO?
A nonstop flight takes about 12h 11m 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 Ontario and Gerona?
Gerona is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to GRO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–GRO that never appear on search engines, with no booking fees.