Sidney-Richland Regional ⇄ Billings Logan International SDY–BIL
Airlines flew 3,362 flights between Sidney-Richland Regional SDY in Sidney, MT and Billings Logan International BIL in Billings, MT in the twelve months to July 2026, both directions together: 13,821 passengers in 30,258 seats, 46% of them filled. 245 miles, about 77 minutes in the air, on 1 airline: Hyannis Air Service, Inc. dba Cape Air (3,362). Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 260 |
| 2/25 | 219 |
| 3/25 | 306 |
| 4/25 | 290 |
| 5/25 | 312 |
| 6/25 | 294 |
| 7/25 | 285 |
| 8/25 | 316 |
| 9/25 | 283 |
| 10/25 | 281 |
| 11/25 | 273 |
| 12/25 | 258 |
| 1/26 | 246 |
| 2/26 | 280 |
| 3/26 | 270 |
| 4/26 | 298 |
| 5/26 | 286 |
| 6/26 | 278 |
| 7/26 | 293 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 1,021 |
| 2/25 | 760 |
| 3/25 | 1,191 |
| 4/25 | 1,191 |
| 5/25 | 1,132 |
| 6/25 | 1,232 |
| 7/25 | 1,306 |
| 8/25 | 1,307 |
| 9/25 | 1,152 |
| 10/25 | 1,120 |
| 11/25 | 1,181 |
| 12/25 | 1,084 |
| 1/26 | 816 |
| 2/26 | 980 |
| 3/26 | 1,035 |
| 4/26 | 1,186 |
| 5/26 | 1,254 |
| 6/26 | 1,338 |
| 7/26 | 1,368 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Hyannis Air Service, Inc. dba Cape Air 9K | 3,362 | 13,821 | 46% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Cessna C-402/402A/402B | 3,362 | 9 | 13,821 |
SDY → BIL this direction alone · flown January 2025 to July 2026
1,681 flights of 1,705 scheduled, 7,059 passengers in 15,129 seats. Hyannis Air Service, Inc. dba Cape Air 1,681.
BIL → SDY this direction alone · flown January 2025 to July 2026
1,681 flights of 1,705 scheduled, 6,762 passengers in 15,129 seats. Hyannis Air Service, Inc. dba Cape Air 1,681.
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: Sidney-Richland Regional SDY and Billings Logan International BIL; all routes.