Part of the data ring
FlyTime
SEZ → ORD

Victoria to Chicago

18h 27mgate to gate

The flight from Seychelles International Airport (SEZ) to Chicago O'Hare International Airport (ORD) covers 14,512 km (9,017 miles) and takes approximately 18h 27m gate to gate for a typical jet.

The route heads north-west on an initial great-circle bearing of 324°, passing near 44.6° N, 7.6° E at its midpoint.

Great-circle strip Plate SEZ–ORD
18h 27mGATE TO GATE4h 37m13h 50mSEZVictoriaORDChicago324° NORTH-WEST7,836 NM03,6287,25610,88414,512 km

Bearing 324° north-west Midpoint 44.6° N, 7.6° E Model 805 km/h + 25 min

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Flight time18h 27mestimated, gate to gate
Distance14,512km · 9,017 mi
Nautical7,836nautical miles
Direction324°north-west

How this is worked out

  1. Take both airports' published coordinates from OurAirports — nothing here is scraped from another flight site.
  2. Great-circle distance by haversine on a mean earth radius of 6,371.0088 km: 14,512 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 18h 02m.
  4. Add a flat 25 minutes for pushback, taxi, climb, descent and taxi-in — the reason a 400 km hop is never half an hour: 18h 27m gate to gate.
  5. Winds, aircraft type and airline schedule padding are not modelled. The cruise-speed table shows how much that assumption is worth.
14,512 km / 805 km/h = 18h 02m airborne
            + 25 min ground = 18h 27m gate to gate

The full model, and what it ignores →

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

The same route, plotted on a world grid

The strip above gives the route its length and its shape. This gives it a position: latitude and longitude only, no coastlines, because a hand-drawn coastline would be decoration pretending to be data. On a flat grid the shortest path looks bent; on a globe it is straight.

SEZ ORD

Flight time at different cruise speeds

Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.

Typical ofCruise speedAirborneGate to gate
Turboprop / regional550 km/h26h 23m26h 48m
Narrowbody jet (A320, 737)780 km/h18h 36m19h 01m
Widebody jet (777, 787, A350)900 km/h16h 07m16h 33m
Private jet (Gulfstream)850 km/h17h 04m17h 30m

Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Both airports

SEZORD
AirportSeychelles International AirportChicago O'Hare International Airport
CityVictoriaChicago
CountrySeychellesUnited States
ICAOFSIAKORD
Coordinates-4.6743, 55.521841.9786, -87.9048
Elevation10 ft680 ft

Every figure on this plate is geometry. The shape of the earth is knowable; the airline's schedule is not.

Questions this plate answers

How long is the flight from Victoria to Chicago?

A non-stop flight from Victoria (SEZ) to Chicago (ORD) takes about 18h 27m. The great-circle distance is 14,512 km (9,017 miles, 7,836 nautical miles), flying north-west on an initial bearing of 324°.

How far is Victoria from Chicago?

14,512 kilometres in a straight line over the earth's surface — 9,017 miles or 7,836 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.

Is there a non-stop flight between SEZ and ORD?

This page calculates the direct-line time and distance; it does not track airline schedules. At 14,512 km the route is at the extreme end of what any airliner can fly non-stop, so a connection is likely. Check an airline or booking site for what is actually scheduled.

What should I expect on a 18h 27m flight?

Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.

Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.

See all 10 sites in this family, with what each one answers

Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.