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Route

Louisville → Dulles

SDFLouisvilleLouisville Muhammad Ali International Airport
IADDullesWashington Dulles International Airport
Distance
450 mi
Estimated flight time
~1h 25m

Same local time in Louisville and Dulles.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

A couple of times a day

On average around 3 flights a day, observed from October 2025 to September 2026.

3
flights per day
4
busiest month · May
3
quietest month · Oct
1 hr 8 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

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

Airlines

Who flies it

Mesa Airlinesall year
UPS Airlinesall year
Republic Airwayssummer

Through the day

Departure times

Local time in Louisville. Most departures between 04:00 and 07:00.

  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. 2.8Mon
  2. 3.7Tue
  3. 3.9Wed
  4. 3.8Thu
  5. 3.9Fri
  6. 3.3Sat
  7. 2.7Sun

Fleet

Aircraft observed

  1. Embraer 175E75L67%
  2. Boeing 767-300B76318%
  3. Dassault Falcon 2000F2TH4%
  4. Boeing 757-200B7522%
  5. McDonnell Douglas MD-11MD112%
All the numbers in a table
MonthPer daySeenAirlines
January 2026382
  • Mesa Airlines56×
  • UPS Airlines23×
February 2026384
  • Mesa Airlines54×
  • UPS Airlines20×
March 2026391
  • Mesa Airlines59×
  • UPS Airlines21×
April 2026389
  • Mesa Airlines56×
  • UPS Airlines21×
  • Republic Airways1×
May 20264120
  • Mesa Airlines46×
  • Republic Airways38×
  • UPS Airlines17×
June 20264116
  • Republic Airways57×
  • Mesa Airlines29×
  • UPS Airlines21×
July 20264117
  • Republic Airways59×
  • Mesa Airlines27×
  • UPS Airlines23×
August 20264125
  • Republic Airways55×
  • UPS Airlines33×
  • Mesa Airlines28×
September 20264130
  • Republic Airways42×
  • Mesa Airlines39×
  • UPS Airlines38×
October 2025397
  • Mesa Airlines60×
  • UPS Airlines23×
November 2025394
  • Mesa Airlines60×
  • UPS Airlines19×
December 2025393
  • Mesa Airlines61×
  • UPS Airlines19×

Airlines observed on this route

From observed callsign routes on SDF-IAD - not a booking guarantee.

Mesa Airlines

YV · ASH

Hub: IAH Houston

73 departure airportsView airline →

Republic Airways

YX · RPA

Hub: ORD Chicago

107 departure airportsView airline →

UPS Airlines

5X · UPS

Hub: SDF Louisville

154 departure airportsView airline →

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 Louisville: 142.
  • Direct destinations observed from Dulles: 171.

The airports on this route

Louisville Muhammad Ali International Airport

Louisville, United StatesSDF / KSDF

Regional airport · 142 direct destinations · 3 runways · longest runway 11,886 ft

55 °F · RainSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Washington Dulles International Airport

Dulles, United StatesIAD / KIAD

International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft

71 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Alternative airports for this journey

Same journey, a different airport nearby - with an observed direct connection.

SDF DCARonald Reagan Washington National AirportWashington is about 24 mi from Dulles.View route →SDF BWIBaltimore/Washington International Thurgood Marshall AirportBaltimore is about 45 mi from Dulles.View route →CVG IADCincinnati Northern Kentucky International AirportHebron is about 84 mi from Louisville.View route →

About the route from Louisville to Dulles

The observed direct connection between Louisville Muhammad Ali International Airport (SDF) and Washington Dulles International Airport (IAD) covers approximately 450 mi. The estimated flight time is around 1h 25m. Mesa Airlines, Republic Airways and UPS Airlines have been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Louisville from Dulles by air?
The great-circle distance between Louisville Muhammad Ali International Airport and Washington Dulles International Airport is approximately 450 mi.
How long is the flight from Louisville to Dulles?
Based on the distance, the estimated flight time is about 1h 25m. This is an estimate, not a schedule.
Is there a direct connection from Louisville to Dulles?
Yes, a direct connection between SDF and IAD has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Mesa Airlines, Republic Airways and UPS Airlines.
How often is there a flight from Louisville to Dulles?
On average around 3 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,238 observed flights. Mainly Mesa Airlines, UPS Airlines, Republic Airways. That is an observation, not a timetable.
What is the current time difference between Louisville and Dulles?
Same local time in Louisville and Dulles.

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.