San Francisco International Airport
San Francisco, United StatesSFO / KSFO
International hub · 130 direct destinations · 4 runways · longest runway 11,870 ft
73 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
San Francisco → Chicago
SFO
San FranciscoSan Francisco International Airport
San FranciscoSan Francisco International AirportMDWChicagoChicago Midway International Airport
ChicagoChicago Midway International Airport- Distance
- 1,850 mi
- Estimated flight time
- ~4h 15m
Chicago is currently 2 hours ahead of San Francisco.
Observed nonstop
How often does this route fly?
Frequency
A couple of times a day
On average around 2 flights a day, observed from October 2025 to September 2026.
- 2
- flights per day
- 2
- busiest month · Mar
- 1
- quietest month · Oct
- 3 hr 36 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 1Jan2026
- 1Feb
- 2Mar
- 2Apr
- 2May
- 2Jun
- 2Jul
- 2Aug
- 2Sep
- 1Oct2025
- 1Nov
- 1Dec
Airlines
Who flies it
Southwest Airlinesall year
Delta Air Linesnow and then
Through the day
Departure times
Local time in San Francisco. Most departures between 05:00 and 08:00.
- 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
- 1.6Mon
- 1.5Tue
- 1.6Wed
- 1.5Thu
- 1.7Fri
- 1.6Sat
- 1.7Sun
Fleet
Aircraft observed
- Boeing 737 MAX 8B38M47%
- Boeing 737-800B73833%
- Boeing 737-700B7379%
- Bombardier Challenger 350CL352%
- Cessna Citation LatitudeC68A1%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 23 |
|
| February 2026 | 1 | 25 |
|
| March 2026 | 2 | 53 |
|
| April 2026 | 2 | 60 |
|
| May 2026 | 2 | 62 |
|
| June 2026 | 2 | 66 |
|
| July 2026 | 2 | 62 |
|
| August 2026 | 2 | 62 |
|
| September 2026 | 2 | 62 |
|
| October 2025 | 1 | 35 |
|
| November 2025 | 1 | 35 |
|
| December 2025 | 1 | 30 |
|
Airlines observed on this route
From observed callsign routes on SFO-MDW - 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 San Francisco: 130.
- Direct destinations observed from Chicago: 108.
The airports on this route
Chicago Midway International Airport
Chicago, United StatesMDW / KMDW
Major airport · 108 direct destinations · 4 runways · longest runway 6,522 ft
54 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
OAK MDWOakland San Francisco Bay AirportOakland is about 11 mi from San Francisco.View route →SFO ORDChicago O'Hare International AirportChicago is about 16 mi from Chicago.View route →SJC MDWMineta San Jose International AirportSan Jose is about 30 mi from San Francisco.View route →SMF MDWSacramento International AirportSacramento is about 86 mi from San Francisco.View route →
About the route from San Francisco to Chicago
The observed direct connection between San Francisco International Airport (SFO) and Chicago Midway International Airport (MDW) covers approximately 1,850 mi. The estimated flight time is around 4h 15m. Delta Air Lines and Southwest Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is San Francisco from Chicago by air?
- The great-circle distance between San Francisco International Airport and Chicago Midway International Airport is approximately 1,850 mi.
- How long is the flight from San Francisco to Chicago?
- Based on the distance, the estimated flight time is about 4h 15m. This is an estimate, not a schedule.
- Is there a direct connection from San Francisco to Chicago?
- Yes, a direct connection between SFO and MDW has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Delta Air Lines and Southwest Airlines.
- How often is there a flight from San Francisco to Chicago?
- On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 575 observed flights. Mainly Southwest Airlines, Delta Air Lines. That is an observation, not a timetable.
- What is the current time difference between San Francisco and Chicago?
- Chicago is currently 2 hours ahead of San Francisco.
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.