The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Nantucket Memorial ⇄ Chicago O'Hare International ACK–ORD

Airlines flew 60 flights between Nantucket Memorial ACK in Nantucket, MA and Chicago O'Hare International ORD in Chicago, IL in the twelve months to July 2026, both directions together: 3,755 passengers in 4,530 seats, 83% of them filled. 924 miles, about 147 minutes in the air, on 2 airlines: SkyWest Airlines Inc. (38), Republic Airline (22). Planning to fly it yourself? The weather and winds along this route right now.

60
flights, twelve months
ACK-ORD: 29 · ORD-ACK: 31
3,755
passengers
83% of seats filled
924
miles
about 147 minutes airborne
2
airlines
1 aircraft type

Flights by month both directions

0612172386/252221166/26237/26
By month, as a table
flights
6/258
7/2522
8/2521
6/2616
7/2623

Passengers by month

03667321,0981,4645796/251,4311,3709216/261,4647/26
By month, as a table
passengers
6/25579
7/251,431
8/251,370
6/26921
7/261,464

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
SkyWest Airlines Inc. OO382,43485%scheduled passenger service
Republic Airline YX221,32179%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-17560763,755

ACK → ORD this direction alone · flown June 2025 to July 2026

29 flights of 29 scheduled, 1,892 passengers in 2,192 seats. SkyWest Airlines Inc. 18; Republic Airline 11.

ORD → ACK this direction alone · flown June 2025 to July 2026

31 flights of 31 scheduled, 1,863 passengers in 2,338 seats. SkyWest Airlines Inc. 20; Republic Airline 11.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Nantucket Memorial ACK and Chicago O'Hare International ORD; all routes.