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Route

Watertown → Sioux Falls

ATYWatertownWatertown Regional Airport
FSDSioux FallsSioux Falls Regional Airport
Distance
94 mi
Estimated flight time
~40m

Same local time in Watertown and Sioux Falls.

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
1.5
busiest month · May
1
quietest month · Feb
32 min
measured flight time
8 / 12
months seen

Through the year

Per day, month by month

  1. –Jan2026
  2. 1Feb
  3. 1Mar
  4. 1Apr
  5. 1.5May
  6. 1Jun
  7. 1Jul
  8. 1Aug
  9. 1Sep
  10. –Oct2025
  11. –Nov
  12. –Dec

In May 2026, June 2026 we saw less traffic at Watertown in general than usual; compare that month with care.

Airlines

Who flies it

Midwest Aviation Divisionspring

Through the day

Departure times

Local time in Watertown. Most departures between 13:00 and 16:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 0.3Mon
  2. 0.3Tue
  3. 0.5Wed
  4. 0.5Thu
  5. 0.3Fri
  6. 0.3Sat
  7. 0.1Sun

Fleet

Aircraft observed

  1. Cessna 172C17235%
  2. Beechcraft King Air 200BE2030%
  3. Beechcraft King Air 90BE9L8%
  4. P28A8%
  5. Pilatus PC-12PC123%
All the numbers in a table
MonthPer daySeenAirlines
January 2026Not seen in this month.
February 2026111
  • Midwest Aviation Division3×
March 2026110
  • Midwest Aviation Division3×
April 2026113
  • Midwest Aviation Division2×
May 20261.59
  • Midwest Aviation Division2×
June 2026115
  • Midwest Aviation Division2×
July 2026119
  • Midwest Aviation Division2×
August 2026123–
    September 2026117
    • Midwest Aviation Division1×
    October 2025Not seen in this month.
    November 2025Not seen in this month.
    December 2025Not seen in this month.

    Airlines observed on this route

    From observed callsign routes on ATY-FSD - 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 Watertown: 3.
    • Direct destinations observed from Sioux Falls: 40.

    The airports on this route

    Watertown Regional Airport

    Watertown, United StatesATY / KATY

    Regional airport · 3 direct destinations · 2 runways · longest runway 6,900 ft

    44 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

    Sioux Falls Regional Airport

    Sioux Falls, United StatesFSD / KFSD

    Regional airport · 40 direct destinations · 3 runways · longest runway 8,999 ft

    46 °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.

    About the route from Watertown to Sioux Falls

    The observed direct connection between Watertown Regional Airport (ATY) and Sioux Falls Regional Airport (FSD) covers approximately 94 mi. The estimated flight time is around 40m. Midwest Aviation Division has been observed on this connection in the available route data.

    Frequently asked questions about this route

    How far is Watertown from Sioux Falls by air?
    The great-circle distance between Watertown Regional Airport and Sioux Falls Regional Airport is approximately 94 mi.
    How long is the flight from Watertown to Sioux Falls?
    Based on the distance, the estimated flight time is about 40m. This is an estimate, not a schedule.
    Is there a direct connection from Watertown to Sioux Falls?
    Yes, a direct connection between ATY and FSD has been observed in our route data.
    Which airlines have been observed on this route?
    In the available route data: Midwest Aviation Division.
    How often is there a flight from Watertown to Sioux Falls?
    On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 117 observed flights. Mainly Midwest Aviation Division. That is an observation, not a timetable.
    What is the current time difference between Watertown and Sioux Falls?
    Same local time in Watertown and Sioux Falls.

    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.