Chicago Rockford International Airport
Chicago, United StatesRFD / KRFD
Regional airport · 61 direct destinations · 2 runways · longest runway 10,003 ft
48 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Chicago → Denver
RFD
ChicagoChicago Rockford International Airport
ChicagoChicago Rockford International AirportDENDenverDenver International Airport
DenverDenver International Airport- Distance
- 826 mi
- Estimated flight time
- ~2h 10m
Denver is currently 1 hour behind Chicago.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 1
- busiest month · Oct
- 1 hr 54 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 1Jan2026
- 1Feb
- 1Mar
- 1Apr
- 1May
- 1Jun
- 1Jul
- 1Aug
- 1Sep
- 1Oct2025
- 1Nov
- 1Dec
Airlines
Who flies it
UPS Airlinesall year
Through the day
Departure times
Local time in Chicago. Most departures between 01:00 and 04:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0Mon
- 0.9Tue
- 1Wed
- 0.9Thu
- 1Fri
- 0Sat
- 0Sun
Fleet
Aircraft observed
- Boeing 767-300B76386%
- Airbus A300-600A3067%
- Boeing 757-200B7525%
- Boeing 737-800B7381%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 15 |
|
| February 2026 | 1 | 16 |
|
| March 2026 | 1 | 17 |
|
| April 2026 | 1 | 18 |
|
| May 2026 | 1 | 13 |
|
| June 2026 | 1 | 18 |
|
| July 2026 | 1 | 20 |
|
| August 2026 | 1 | 16 |
|
| September 2026 | 1 | 19 |
|
| October 2025 | 1 | 18 |
|
| November 2025 | 1 | 15 |
|
| December 2025 | 1 | 17 |
|
Airlines observed on this route
From observed callsign routes on RFD-DEN - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Chicago: 61.
- Direct destinations observed from Denver: 203.
The airports on this route
Denver International Airport
Denver, United StatesDEN / KDEN
International hub · 203 direct destinations · 6 runways · longest runway 16,001 ft
32 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
ORD DENChicago O'Hare International AirportChicago is about 63 mi from Chicago.View route →MSN DENDane County Regional Truax FieldMadison is about 66 mi from Chicago.View route →MDW DENChicago Midway International AirportChicago is about 75 mi from Chicago.View route →MKE DENGeneral Mitchell International AirportMilwaukee is about 80 mi from Chicago.View route →
About the route from Chicago to Denver
The observed direct connection between Chicago Rockford International Airport (RFD) and Denver International Airport (DEN) covers approximately 826 mi. The estimated flight time is around 2h 10m. UPS Airlines has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Chicago from Denver by air?
- The great-circle distance between Chicago Rockford International Airport and Denver International Airport is approximately 826 mi.
- How long is the flight from Chicago to Denver?
- Based on the distance, the estimated flight time is about 2h 10m. This is an estimate, not a schedule.
- Is there a direct connection from Chicago to Denver?
- Yes, a direct connection between RFD and DEN has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: UPS Airlines.
- How often is there a flight from Chicago to Denver?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 202 observed flights. Mainly UPS Airlines. That is an observation, not a timetable.
- What is the current time difference between Chicago and Denver?
- Denver is currently 1 hour behind Chicago.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.