Lufthansa
flight
LH 7521:
Denver - Chicago O'Hare
Denver - Chicago O'Hare
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Lufthansa LH7521
Effective 2025-12-02 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1023)
Duration: 2:26, non-stop Boeing 737-900 (739)
Lufthansa LH7521
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1023)
Duration: 2:26, non-stop Boeing 737-900 (739)
Lufthansa LH7521
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 1209Z)
Duration: 2:29, non-stop Boeing 757-300 (753)
Lufthansa LH7521
Effective 2025-11-02 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 1209Z)
Duration: 2:29, non-stop Boeing 757-300 (753)
Lufthansa LH7521
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 1209Z)
Duration: 2:29, non-stop Boeing 757-300 (753)
Lufthansa LH7521
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 1209Z)
Duration: 2:29, non-stop Boeing 757-300 (753)
Lufthansa LH7521
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2200)
Duration: 2:43, non-stop Boeing 757-300 (753)
Lufthansa LH7521
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1495)
Duration: 2:35, non-stop Airbus A321neo (32Q)
Lufthansa LH7521
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 250)
Duration: 2:43, non-stop Boeing 757-300 (753)
Lufthansa LH7521
Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 250)
Duration: 2:43, non-stop Boeing 757-300 (753)
Lufthansa LH7521
Effective 2025-09-25 through 2025-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1049)
Duration: 2:41, non-stop Airbus A321neo (32Q)
Lufthansa LH7521
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2258)
Duration: 2:25, non-stop Boeing 737-900 (739)
Lufthansa LH7521
Operates only on 2025-10-25
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2258)
Duration: 2:32, non-stop Airbus A321neo (32Q)
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Parallax here DEN-ORD
- LH 7521 is a domestic flight departing from the Denver airport (DEN) and arriving at Chicago O'Hare airport (ORD).
- The flight distance is 885 miles, or 1425 km.
- The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 2:25 and 2:43.