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CAT to CGX: distance & flight time
Cascais (Cascais Airport) → Chicago (Chicago Meigs Airport)
3,980 mi
6,405 km · 3,459 nm
8h 16m
estimated nonstop flight time
-6h
time difference · heading northwest
See live CAT→CGX fares Phone-only fares on this route — call free
Flight time details
3,980 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
- CGX — Chicago Meigs Airport · Chicago, 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 CGX
- ORD · Chicago O'Hare International Airport17 mi away
- MDW · Chicago Midway International Airport9 mi away
- GYY · Gary Chicago International Airport20 mi away
- PWK · Chicago Executive Airport23 mi away
Frequently asked questions
How far is CAT from CGX?
The flight distance from Cascais (CAT) to Chicago (CGX) is 3,980 miles (6,405 km, 3,459 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to CGX?
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 Chicago?
Chicago is 6 hours behind Cascais.
What is the cheapest way to fly from CAT to CGX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–CGX that never appear on search engines, with no booking fees.