Great-circle route ORD ↔ BOS. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample. The two directions are not identical — that is normal on scheduled routes.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| ORD → BOS Chicago to Boston |
178/wk | Daily | American Airlines, Delta Air Lines, JetBlue Airways, United Airlines |
| BOS → ORD Boston to Chicago |
169/wk | Daily | American Airlines, Delta Air Lines, JetBlue Airways, United Airlines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 1,791,390 passengers on 14,357 flights between ORD and BOS — about 4,911 a day — filling 87% of the 2,055,050 seats flown. United Air Lines Inc. carried the most passengers (43%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
4 airlines fly the ORD–BOS nonstop, including American Airlines, Delta Air Lines, JetBlue Airways, United Airlines.
Recent scheduled departures on this route have used the Boeing 737-800, Airbus A220-300, Boeing 737, Embraer 175 and 4 other types.
Aircraft assignments change by season and by time of day.
The distance between Chicago O'Hare International Airport and General Edward Lawrence Logan International Airport is 864 miles, or 1,390 kilometres.
| Great-circle distance | 864 mi |
| Kilometres | 1,390 km |
| Nautical miles | 751 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 4 airlines fly the route nonstop, with about 347 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 2h 18m in the air. That is a great-circle estimate from the 864-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
About 178 a week from Chicago to Boston and 169 a week from Boston to Chicago, from our most recent schedule sample.
American Airlines, Delta Air Lines, JetBlue Airways, United Airlines.
In 2025, airlines reported 1,791,390 passengers on 14,357 scheduled flights between ORD and BOS — about 4,911 a day — filling 87% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 737-800, Airbus A220-300, Boeing 737, Embraer 175. Assignments change by season and by time of day.
