Nantucket (ACK) to Chicago (ORD)
Flight time
≈ 2h 39m
Bearing
279° W
Nantucket (ACK) to Chicago (ORD) is 921 miles (1,483 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ACK–ORD
Filed traffic dataIn June 2026, SkyWest Airlines operated the most departures, one of 2 carriers flying nonstop ACK–ORD; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 76% full.
Departures
16
June 2026
Seats
1,204
both directions
Passengers
921
both directions
Load factor
76.5%
RPM ÷ ASM
Who flies ACK–ORD?
SkyWest Airlines operated the most nonstop ACK–ORD departures in June 2026 (12), one of 2 carriers on the route.
- OO
12 departures · 900 seats
Share of departures75.0%75.8%
Load
- YX
4 departures · 304 seats
Share of departures25.0%78.6%
Load
What plane flies ACK–ORD?
In June 2026, the Embraer E175 flew 100% of ACK–ORD departures.
- Embraer E175
16 departures · 76.5% load
100.0%
How has ACK–ORD traffic changed?
Nonstop ACK–ORD departures fell from 22 in July 2025 to 16 in June 2026.
Monthly nonstop ACK–ORD traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
22 departures · 1,431 passengers
85.6%
Load
August 2025
21 departures · 1,370 passengers
86.8%
Load
September 2025
0 departures · 0 passengers
—
Load
October 2025
0 departures · 0 passengers
—
Load
November 2025
0 departures · 0 passengers
—
Load
December 2025
0 departures · 0 passengers
—
Load
January 2026
0 departures · 0 passengers
—
Load
February 2026
0 departures · 0 passengers
—
Load
March 2026
0 departures · 0 passengers
—
Load
April 2026
0 departures · 0 passengers
—
Load
May 2026
0 departures · 0 passengers
—
Load
June 2026
16 departures · 921 passengers
76.5%
Load
By direction
Each direction is filed separately — they rarely match.
ACK → ORD
76.6% full
8 departures · 461 passengers
ORD → ACK
76.4% full
8 departures · 460 passengers
Nonstop ACK–ORD traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Nantucket (ACK) from Chicago (ORD)?
ACK to ORD is 921 miles (1,483 km / 801 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ACK to ORD?
A nonstop covers the 921-mile great-circle distance in roughly 2h 39m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ACK–ORD?
In June 2026, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying ACK–ORD?
Distance-based programs credit off the 921-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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