United Airlines flights from Ronald Reagan Washington (DCA) to Houston George Bush (IAH).

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FLIGHT SCHEDULE
Direct Flights:
Daily 06:00 Ronald Reagan Washington (DCA) 2 08:45 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-800 (738) 3:45 Effective 2026-01-08 through 2026-02-03
Daily 06:00 Ronald Reagan Washington (DCA) 2 08:45 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-800 (738) 3:45 Effective 2026-02-05 through 2026-02-11
Thu 06:00 Ronald Reagan Washington (DCA) 2 08:42 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-700 (73G) 3:42 Operates only on 2026-02-12
Daily 06:00 Ronald Reagan Washington (DCA) 2 08:42 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-800 (738) 3:42 Effective 2026-02-13 through 2026-03-04
Tue-Thu,Sun 06:00 Ronald Reagan Washington (DCA) 2 08:42 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-700 (73G) 3:42 Effective 2026-03-05 through 2026-03-12
Mon,Fri,Sat 06:00 Ronald Reagan Washington (DCA) 2 08:42 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-800 (738) 3:42 Effective 2026-03-06 through 2026-03-09
Fri 06:00 Ronald Reagan Washington (DCA) 2 08:40 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737 MAX 8 (7M8) 3:40 Effective 2026-03-13 through 2026-03-27
Mon,Sat,Sun 06:00 Ronald Reagan Washington (DCA) 2 08:42 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-800 (738) 3:42 Effective 2026-03-14 through 2026-03-28
Tue-Thu 06:00 Ronald Reagan Washington (DCA) 2 08:42 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-700 (73G) 3:42 Effective 2026-03-17 through 2026-03-26
Daily 06:00 Ronald Reagan Washington (DCA) 2 08:30 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-03-29 through 2026-04-29
Daily 06:00 Ronald Reagan Washington (DCA) 2 08:33 Houston George Bush (IAH) C United Airlines UA 1450 Non-stop Boeing 737-700 (73G) 3:33 Effective from 2026-04-30
Daily 19:50 Ronald Reagan Washington (DCA) 2 22:35 Houston George Bush (IAH) C United Airlines UA 1678 Non-stop Airbus A320 (320) 3:45 Effective 2026-04-30 through 2026-05-20
Daily 19:50 Ronald Reagan Washington (DCA) 2 22:35 Houston George Bush (IAH) C United Airlines UA 1678 Non-stop Boeing 737-700 (73G) 3:45 Effective from 2026-05-21
Mon-Fri,Sun 19:59 Ronald Reagan Washington (DCA) 2 22:40 Houston George Bush (IAH) C United Airlines UA 1678 Non-stop Airbus A319 (319) 3:41 Effective 2026-03-05 through 2026-03-27
Daily 19:59 Ronald Reagan Washington (DCA) 2 22:33 Houston George Bush (IAH) C United Airlines UA 1678 Non-stop Airbus A319 (319) 3:34 Effective 2026-03-29 through 2026-04-29
Sat 15:59 Ronald Reagan Washington (DCA) 2 18:41 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A319 (319) 3:42 Effective 2026-01-03 through 2026-02-07
Sat 15:59 Ronald Reagan Washington (DCA) 2 18:42 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Boeing 737-700 (73G) 3:43 Effective 2026-02-14 through 2026-02-28
Sat 15:59 Ronald Reagan Washington (DCA) 2 18:41 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A319 (319) 3:42 Effective 2026-03-07 through 2026-03-28
Mon-Fri,Sun 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A319 (319) 3:42 Valid until 2026-01-09
Sun 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A320 (320) 3:42 Effective 2026-01-11 through 2026-02-08
Mon-Fri 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A319 (319) 3:42 Effective 2026-01-12 through 2026-01-27
Wed 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Boeing 737-800 (738) 3:42 Operates only on 2026-01-28
Mon-Fri 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A319 (319) 3:42 Effective 2026-01-29 through 2026-02-11
Mon-Fri,Sun 16:28 Ronald Reagan Washington (DCA) 2 19:11 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A319 (319) 3:43 Effective 2026-02-12 through 2026-03-04
Mon-Fri,Sun 16:28 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Airbus A319 (319) 3:42 Effective 2026-03-05 through 2026-03-27
Daily 16:34 Ronald Reagan Washington (DCA) 2 19:10 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Boeing 737-700 (73G) 3:36 Effective 2026-03-29 through 2026-04-29
Daily 16:35 Ronald Reagan Washington (DCA) 2 19:09 Houston George Bush (IAH) C United Airlines UA 1785 Non-stop Boeing 737-700 (73G) 3:34 Effective from 2026-04-30
Mon-Fri,Sun 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C United Airlines UA 2190 Non-stop Boeing 737-700 (73G) 3:40 Effective 2026-02-12 through 2026-03-04
Sat 11:00 Ronald Reagan Washington (DCA) 2 13:44 Houston George Bush (IAH) C United Airlines UA 2190 Non-stop Airbus A319 (319) 3:44 Effective 2026-02-14 through 2026-02-28
Daily 11:00 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C United Airlines UA 2190 Non-stop Boeing 737-800 (738) 3:40 Effective 2026-03-05 through 2026-03-28
Daily 11:05 Ronald Reagan Washington (DCA) 2 13:36 Houston George Bush (IAH) C United Airlines UA 2190 Non-stop Boeing 737-700 (73G) 3:31 Effective 2026-03-29 through 2026-04-29
Daily 11:05 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C United Airlines UA 2190 Non-stop Boeing 737-800 (738) 3:35 Effective 2026-04-30 through 2026-05-20
Daily 11:05 Ronald Reagan Washington (DCA) 2 13:40 Houston George Bush (IAH) C United Airlines UA 2190 Non-stop Boeing 737-700 (73G) 3:35 Effective from 2026-05-21
Mon,Sun 19:59 Ronald Reagan Washington (DCA) 2 22:41 Houston George Bush (IAH) C United Airlines UA 2306 Non-stop Airbus A320 (320) 3:42 Effective 2026-01-04 through 2026-01-05
Non-Direct Flights:
Daily 15:30 Ronald Reagan Washington (DCA) 2 22:12 Houston George Bush (IAH) C United Airlines UA 1325 1-stop Airbus A320 (320) 7:42 Effective 2026-05-21 through 2026-10-24

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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 3:30 and 3:54.

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United Airlines flights from Ronald Reagan Washington (DCA) to Houston George Bush (IAH).

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FLIGHT SCHEDULE

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:45

Houston George Bush (IAH) C

Effective 2026-01-08 through 2026-02-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:45, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:45

Houston George Bush (IAH) C

Effective 2026-02-05 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:45, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:42

Houston George Bush (IAH) C

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:42, non-stop
Boeing 737-700 (73G)

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:42

Houston George Bush (IAH) C

Effective 2026-02-13 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

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

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:42

Houston George Bush (IAH) C

Effective 2026-03-05 through 2026-03-12

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 3:42, non-stop
Boeing 737-700 (73G)

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:42

Houston George Bush (IAH) C

Effective 2026-03-06 through 2026-03-09

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

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

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:40

Houston George Bush (IAH) C

Effective 2026-03-13 through 2026-03-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:42

Houston George Bush (IAH) C

Effective 2026-03-14 through 2026-03-28

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

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

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:42

Houston George Bush (IAH) C

Effective 2026-03-17 through 2026-03-26

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:42, non-stop
Boeing 737-700 (73G)

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:30

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1450

06:00

Ronald Reagan Washington (DCA) 2

08:33

Houston George Bush (IAH) C

Effective from 2026-04-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:33, non-stop
Boeing 737-700 (73G)

Direct Flights:

United Airlines UA1678

19:50

Ronald Reagan Washington (DCA) 2

22:35

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:45, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA1678

19:50

Ronald Reagan Washington (DCA) 2

22:35

Houston George Bush (IAH) C

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:45, non-stop
Boeing 737-700 (73G)

Direct Flights:

United Airlines UA1678

19:59

Ronald Reagan Washington (DCA) 2

22:40

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:41, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1678

19:59

Ronald Reagan Washington (DCA) 2

22:33

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:34, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1785

15:59

Ronald Reagan Washington (DCA) 2

18:41

Houston George Bush (IAH) C

Effective 2026-01-03 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

United Airlines UA1785

15:59

Ronald Reagan Washington (DCA) 2

18:42

Houston George Bush (IAH) C

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:43, non-stop
Boeing 737-700 (73G)

Direct Flights:

United Airlines UA1785

15:59

Ronald Reagan Washington (DCA) 2

18:41

Houston George Bush (IAH) C

Effective 2026-03-07 through 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

United Airlines UA1785

16:28

Ronald Reagan Washington (DCA) 2

19:10

Houston George Bush (IAH) C

Valid until 2026-01-09

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

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

Direct Flights:

United Airlines UA1785

16:28

Ronald Reagan Washington (DCA) 2

19:10

Houston George Bush (IAH) C

Effective 2026-01-11 through 2026-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:42, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA1785

16:28

Ronald Reagan Washington (DCA) 2

19:10

Houston George Bush (IAH) C

Effective 2026-01-12 through 2026-01-27

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

United Airlines UA1785

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
-

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

Direct Flights:

United Airlines UA1785

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
-

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

Direct Flights:

United Airlines UA1785

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

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

Direct Flights:

United Airlines UA1785

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

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

Direct Flights:

United Airlines UA1785

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

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

Direct Flights:

United Airlines UA1785

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

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

Direct Flights:

United Airlines UA2190

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

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

Direct Flights:

United Airlines UA2190

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
-

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

Direct Flights:

United Airlines UA2190

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

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

Direct Flights:

United Airlines UA2190

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

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

Direct Flights:

United Airlines UA2190

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

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

Direct Flights:

United Airlines UA2190

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

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

Direct Flights:

United Airlines UA2306

19:59

Ronald Reagan Washington (DCA) 2

22:41

Houston George Bush (IAH) C

Effective 2026-01-04 through 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:42, non-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA1325

15:30

Ronald Reagan Washington (DCA) 2

22:12

Houston George Bush (IAH) C

Effective 2026-05-21 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 7:42, 1-stop
Airbus A320 (320)

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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 3:30 and 3:54.

All DCA-IAH flights

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