Newark (EWR) to Louisville (SDF)
Flight time
≈ 2h 05m
Bearing
258° W
Newark (EWR) to Louisville (SDF) is 641 miles (1,031 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies EWR–SDF
US DOT T-100 · filed dataIn April 2026, Republic Airways operated the most departures, one of 4 carriers flying nonstop EWR–SDF; the Embraer E175 was the most common aircraft at 89% of departures; flights ran 74% full.
Departures
182
April 2026
Seats
13,822
both directions
Passengers
10,225
both directions
Load factor
74.0%
passengers ÷ seats
Who flies EWR–SDF?
Republic Airways operated the most nonstop EWR–SDF departures in April 2026 (162), one of 4 carriers on the route.
- YX
Republic Airways
162 departures · 12,312 seats
Share of departures89.0%73.2%
Load
- G7
GoJet Airlines
16 departures · 800 seats
Share of departures8.8%87.5%
Load
- NK
Spirit Airlines
2 departures · 352 seats
Share of departures1.1%77.0%
Load
- UA
United Airlines
2 departures · 358 seats
Share of departures1.1%67.6%
Load
What plane flies EWR–SDF?
In April 2026, the Embraer E175 flew 89% of EWR–SDF departures — more than any other aircraft type.
- Embraer E175
162 departures · 73.2% load
89.0% - Bombardier CRJ-550
16 departures · 87.5% load
8.8% - Airbus A320
2 departures · 77.0% load
1.1% - Boeing 737-900ER
2 departures · 67.6% load
1.1%
How has EWR–SDF traffic changed?
Nonstop EWR–SDF departures rose from 119 in May 2025 to 182 in April 2026.
Monthly nonstop EWR–SDF traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
119 departures · 8,139 passengers
69.8%
Load
June 2025
132 departures · 9,480 passengers
77.7%
Load
July 2025
136 departures · 9,413 passengers
76.5%
Load
August 2025
128 departures · 7,804 passengers
73.6%
Load
September 2025
124 departures · 8,307 passengers
88.3%
Load
October 2025
184 departures · 11,721 passengers
83.8%
Load
November 2025
158 departures · 9,472 passengers
78.9%
Load
December 2025
142 departures · 9,054 passengers
83.3%
Load
January 2026
158 departures · 7,094 passengers
59.1%
Load
February 2026
150 departures · 7,343 passengers
65.3%
Load
March 2026
172 departures · 9,518 passengers
73.2%
Load
April 2026
182 departures · 10,225 passengers
74.0%
Load
By direction
The DOT files each direction separately — they rarely match.
EWR → SDF
77.3% full
91 departures · 5,341 passengers
SDF → EWR
70.7% full
91 departures · 4,884 passengers
Nonstop EWR–SDF traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Louisville
US
Louisville Muhammad Ali International Airport
Coordinates
38.17°N, 85.74°W
Hemisphere
N · W
Frequently asked
How far is Newark (EWR) from Louisville (SDF)?
EWR to SDF is 641 miles (1,031 km / 557 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from EWR to SDF?
A nonstop covers the 641-mile great-circle distance in roughly 2h 05m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies EWR–SDF?
In April 2026, the Embraer E175 flew the largest share of departures (89.0%), followed by the Bombardier CRJ-550 (8.8%).
What mileage do I earn flying EWR–SDF?
Distance-based programs credit off the 641-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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