All airlines flying from Ronald Reagan Washington (DCA) to Houston George Bush (IAH).

FLIGHT SCHEDULE
Direct Codeshare Flights:
Wed 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C Air New Zealand NZ 6485 Non-stop Boeing 737-800 (738) 3:42 Operates only on 2026-01-28 Codeshare flight, operated by United Airlines.(UA 1785)
Mon-Fri 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C Air New Zealand NZ 6485 Non-stop Airbus A319 (319) 3:42 Effective 2026-01-29 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 1785)
Mon-Fri,Sun 16:28 Ronald Reagan Washington (DCA) 2 19:11 Houston George Bush (IAH) C Air New Zealand NZ 6485 Non-stop Airbus A319 (319) 3:43 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 1785)
Mon-Fri,Sun 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C Air New Zealand NZ 6485 Non-stop Airbus A319 (319) 3:42 Effective 2026-03-05 through 2026-03-27 Codeshare flight, operated by United Airlines.(UA 1785)
Daily 16:34 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C Air New Zealand NZ 6485 Non-stop Boeing 737-700 (73G) 3:36 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 1785)
Daily 16:35 Ronald Reagan Washington (DCA) 2 19:09 Houston George Bush (IAH) C Air New Zealand NZ 6485 Non-stop Boeing 737-700 (73G) 3:34 Effective from 2026-04-30 Codeshare flight, operated by United Airlines.(UA 1785)
Daily 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Airbus A320 (320) 3:40 Valid until 2026-01-04 Codeshare flight, operated by United Airlines.(UA 1077)
Mon 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Airbus A319 (319) 3:40 Operates only on 2026-01-05 Codeshare flight, operated by United Airlines.(UA 1077)
Daily 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Boeing 737-700 (73G) 3:40 Effective 2026-01-06 through 2026-01-31 Codeshare flight, operated by United Airlines.(UA 1077)
Daily 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Boeing 737-700 (73G) 3:40 Effective 2026-02-02 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 1077)
Mon-Fri,Sun 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Boeing 737-700 (73G) 3:40 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 2190)
Sat 11:00 Ronald Reagan Washington (DCA) 2 13:44 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Airbus A319 (319) 3:44 Effective 2026-02-14 through 2026-02-28 Codeshare flight, operated by United Airlines.(UA 2190)
Daily 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Boeing 737-800 (738) 3:40 Effective 2026-03-05 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 2190)
Daily 11:05 Ronald Reagan Washington (DCA) 2 13:36 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Boeing 737-700 (73G) 3:31 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 2190)
Daily 11:05 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Boeing 737-800 (738) 3:35 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 2190)
Daily 11:05 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C Air New Zealand NZ 6488 Non-stop Boeing 737-700 (73G) 3:35 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 2190)

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A domestic route departing from the Ronald Reagan Washington airport (DCA) and arriving at Houston George Bush airport (IAH).
The flight distance is 1205 miles, or 1940 km.
The timezone of the departure airport is UTC-5 , 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 3:12 and 3:56.

Return (IAH-DCA) flights

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All airlines flying from Ronald Reagan Washington (DCA) to Houston George Bush (IAH).

FLIGHT SCHEDULE

Direct Codeshare Flights:

Air New Zealand NZ6485

16:28

Ronald Reagan Washington (DCA) 2

19:10

Houston George Bush (IAH) C

Operates only on 2026-01-28

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1785)

Duration: 3:42, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Air New Zealand NZ6485

16:28

Ronald Reagan Washington (DCA) 2

19:10

Houston George Bush (IAH) C

Effective 2026-01-29 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1785)

Duration: 3:42, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air New Zealand NZ6485

16:28

Ronald Reagan Washington (DCA) 2

19:11

Houston George Bush (IAH) C

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1785)

Duration: 3:43, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air New Zealand NZ6485

16:28

Ronald Reagan Washington (DCA) 2

19:10

Houston George Bush (IAH) C

Effective 2026-03-05 through 2026-03-27

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1785)

Duration: 3:42, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air New Zealand NZ6485

16:34

Ronald Reagan Washington (DCA) 2

19:10

Houston George Bush (IAH) C

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1785)

Duration: 3:36, non-stop
Boeing 737-700 (73G)

Direct Codeshare Flights:

Air New Zealand NZ6485

16:35

Ronald Reagan Washington (DCA) 2

19:09

Houston George Bush (IAH) C

Effective from 2026-04-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1785)

Duration: 3:34, non-stop
Boeing 737-700 (73G)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:00

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1077)

Duration: 3:40, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:00

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1077)

Duration: 3:40, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:00

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Effective 2026-01-06 through 2026-01-31

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1077)

Duration: 3:40, non-stop
Boeing 737-700 (73G)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:00

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Effective 2026-02-02 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1077)

Duration: 3:40, non-stop
Boeing 737-700 (73G)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:00

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2190)

Duration: 3:40, non-stop
Boeing 737-700 (73G)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:00

Ronald Reagan Washington (DCA) 2

13:44

Houston George Bush (IAH) C

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2190)

Duration: 3:44, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:00

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Effective 2026-03-05 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2190)

Duration: 3:40, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:05

Ronald Reagan Washington (DCA) 2

13:36

Houston George Bush (IAH) C

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2190)

Duration: 3:31, non-stop
Boeing 737-700 (73G)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:05

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2190)

Duration: 3:35, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Air New Zealand NZ6488

11:05

Ronald Reagan Washington (DCA) 2

13:40

Houston George Bush (IAH) C

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2190)

Duration: 3:35, non-stop
Boeing 737-700 (73G)

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A domestic route departing from the Ronald Reagan Washington airport (DCA) and arriving at Houston George Bush airport (IAH).
The flight distance is 1205 miles, or 1940 km.
The timezone of the departure airport is UTC-5 , 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 3:12 and 3:56.

Return (IAH-DCA) flights

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