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CAT to GYY: distance & flight time
Cascais (Cascais Airport) → Gary (Gary Chicago International Airport)
3,978 mi
6,402 km · 3,457 nm
8h 16m
estimated nonstop flight time
-6h
time difference · heading northwest
See live CAT→GYY fares Phone-only fares on this route — call free
Flight time details
3,978 miles nonstop takes roughly 8h 16m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- CAT — Cascais Airport · Cascais, Portugal
- GYY — Gary Chicago International Airport · Gary, 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 CAT
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)12 mi away
- AVR · Alverca Air Base21 mi away
- QLR · Monte Real Air Base80 mi away
- BYJ · Beja Airport / Airbase89 mi away
Near GYY
- ORD · Chicago O'Hare International Airport36 mi away
- CGX · Chicago Meigs Airport20 mi away
- MDW · Chicago Midway International Airport21 mi away
- VPZ · Porter County Municipal Airport24 mi away
Frequently asked questions
How far is CAT from GYY?
The flight distance from Cascais (CAT) to Gary (GYY) is 3,978 miles (6,402 km, 3,457 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to GYY?
A nonstop flight takes about 8h 16m 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 Cascais and Gary?
Gary is 6 hours behind Cascais.
What is the cheapest way to fly from CAT to GYY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–GYY that never appear on search engines, with no booking fees.