All airlines flying from Ronald Reagan Washington (DCA) to Denver (DEN).

FLIGHT SCHEDULE
Direct Flights:
Wed,Thu,Sun 08:00 Ronald Reagan Washington (DCA) 1 10:13 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320 (320) 4:13 Valid until 2026-01-04
Mon,Tue,Fri,Sat 08:00 Ronald Reagan Washington (DCA) 1 10:13 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:13 Valid until 2026-01-05
Tue 08:00 Ronald Reagan Washington (DCA) 1 10:22 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320 (320) 4:22 Operates only on 2026-01-13
Mon,Wed-Sun 08:00 Ronald Reagan Washington (DCA) 1 10:22 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:22 Effective 2026-01-14 through 2026-01-19
Mon,Thu-Sun 08:00 Ronald Reagan Washington (DCA) 1 10:22 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:22 Effective 2026-01-22 through 2026-02-09
Daily 08:00 Ronald Reagan Washington (DCA) 1 10:22 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:22 Effective 2026-02-10 through 2026-03-31
Daily 08:00 Ronald Reagan Washington (DCA) 1 10:13 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:13 Effective 2026-04-01 through 2026-04-13
Thu 08:01 Ronald Reagan Washington (DCA) 1 10:14 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320 (320) 4:13 Operates only on 2026-01-08
Mon,Fri,Sun 08:01 Ronald Reagan Washington (DCA) 1 10:14 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:13 Effective 2026-01-09 through 2026-01-12
Tue 08:59 Ronald Reagan Washington (DCA) 1 11:12 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320 (320) 4:13 Operates only on 2026-01-06
Wed,Sat 08:59 Ronald Reagan Washington (DCA) 1 11:12 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:13 Effective 2026-01-07 through 2026-01-10
Wed 08:59 Ronald Reagan Washington (DCA) 1 11:21 Denver (DEN) Frontier Airlines F9 685 Non-stop Airbus A320neo (32N) 4:22 Effective 2026-01-21 through 2026-02-04
Tue 13:00 Ronald Reagan Washington (DCA) 1 15:16 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:16 Effective 2026-01-27 through 2026-02-10
Tue-Fri,Sun 13:00 Ronald Reagan Washington (DCA) 1 15:16 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:16 Effective 2026-02-11 through 2026-02-26
Mon,Sat 13:00 Ronald Reagan Washington (DCA) 1 15:16 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320 (320) 4:16 Effective 2026-02-14 through 2026-02-23
Mon,Fri,Sat 13:00 Ronald Reagan Washington (DCA) 1 15:16 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320 (320) 4:16 Effective 2026-02-27 through 2026-03-02
Tue-Thu,Sun 13:00 Ronald Reagan Washington (DCA) 1 15:16 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:16 Effective 2026-03-01 through 2026-03-05
Mon,Tue,Sun 13:00 Ronald Reagan Washington (DCA) 1 15:16 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320 (320) 4:16 Effective 2026-03-29 through 2026-03-31
Mon,Thu,Fri,Sun 13:00 Ronald Reagan Washington (DCA) 1 15:06 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:06 Effective 2026-04-02 through 2026-04-13
Thu 14:00 Ronald Reagan Washington (DCA) 1 16:15 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320 (320) 4:15 Valid until 2026-01-01
Fri 14:00 Ronald Reagan Washington (DCA) 1 16:14 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:14 Valid until 2026-01-02
Mon,Wed,Sat,Sun 14:00 Ronald Reagan Washington (DCA) 1 16:15 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:15 Valid until 2026-01-05
Tue,Thu,Sat,Sun 14:00 Ronald Reagan Washington (DCA) 1 16:15 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:15 Effective 2026-01-06 through 2026-01-11
Mon,Fri 14:00 Ronald Reagan Washington (DCA) 1 16:15 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320 (320) 4:15 Effective 2026-01-09 through 2026-01-12
Tue,Fri-Sun 14:00 Ronald Reagan Washington (DCA) 1 16:22 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:22 Effective 2026-01-13 through 2026-01-20
Mon,Thu 14:00 Ronald Reagan Washington (DCA) 1 16:22 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320 (320) 4:22 Effective 2026-01-15 through 2026-01-19
Mon,Wed-Sun 14:00 Ronald Reagan Washington (DCA) 1 16:22 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:22 Effective 2026-01-21 through 2026-02-09
Mon,Thu-Sun 14:00 Ronald Reagan Washington (DCA) 1 16:22 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320 (320) 4:22 Effective 2026-03-06 through 2026-03-28
Tue 14:00 Ronald Reagan Washington (DCA) 1 16:22 Denver (DEN) Frontier Airlines F9 687 Non-stop Airbus A320neo (32N) 4:22 Effective 2026-03-10 through 2026-03-24
Mon,Tue,Fri,Sat 18:00 Ronald Reagan Washington (DCA) 1 20:12 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320neo (32N) 4:12 Valid until 2026-01-05
Thu,Sun 18:00 Ronald Reagan Washington (DCA) 1 20:12 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320 (320) 4:12 Valid until 2026-01-04
Wed,Thu,Sat,Sun 18:00 Ronald Reagan Washington (DCA) 1 20:12 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320 (320) 4:12 Effective 2026-01-07 through 2026-01-11
Mon,Fri 18:00 Ronald Reagan Washington (DCA) 1 20:12 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320neo (32N) 4:12 Effective 2026-01-09 through 2026-01-12
Wed 18:00 Ronald Reagan Washington (DCA) 1 20:16 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320 (320) 4:16 Operates only on 2026-01-14
Mon,Tue,Thu-Sun 18:00 Ronald Reagan Washington (DCA) 1 20:16 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320neo (32N) 4:16 Effective 2026-01-15 through 2026-02-09
Mon,Thu-Sun 18:00 Ronald Reagan Washington (DCA) 1 20:16 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320neo (32N) 4:16 Effective 2026-02-12 through 2026-03-07
Mon,Wed-Sun 18:00 Ronald Reagan Washington (DCA) 1 20:16 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320neo (32N) 4:16 Effective 2026-03-08 through 2026-03-30
Daily 18:00 Ronald Reagan Washington (DCA) 1 20:12 Denver (DEN) Frontier Airlines F9 689 Non-stop Airbus A320neo (32N) 4:12 Effective 2026-04-01 through 2026-04-13
Daily 16:07 Ronald Reagan Washington (DCA) 2 18:24 Denver (DEN) United Airlines UA 746 Non-stop Airbus A321neo (32Q) 4:17 Effective 2026-03-29 through 2026-04-29
Daily 16:07 Ronald Reagan Washington (DCA) 2 18:07 Denver (DEN) United Airlines UA 746 Non-stop Airbus A321neo (32Q) 4:00 Effective 2026-04-30 through 2026-05-20
Daily 16:07 Ronald Reagan Washington (DCA) 2 18:07 Denver (DEN) United Airlines UA 746 Non-stop Boeing 757-300 (753) 4:00 Effective from 2026-05-21
Daily 16:11 Ronald Reagan Washington (DCA) 2 18:25 Denver (DEN) United Airlines UA 746 Non-stop Airbus A321neo (32Q) 4:14 Effective 2026-01-06 through 2026-02-11
Mon-Fri,Sun 16:11 Ronald Reagan Washington (DCA) 2 18:29 Denver (DEN) United Airlines UA 746 Non-stop Airbus A321neo (32Q) 4:18 Effective 2026-02-12 through 2026-02-27
Sat 16:11 Ronald Reagan Washington (DCA) 2 18:29 Denver (DEN) United Airlines UA 746 Non-stop Boeing 737 MAX 8 (7M8) 4:18 Effective 2026-02-14 through 2026-02-21
Daily 16:11 Ronald Reagan Washington (DCA) 2 18:29 Denver (DEN) United Airlines UA 746 Non-stop Airbus A321neo (32Q) 4:18 Effective 2026-02-28 through 2026-03-28
Daily 16:17 Ronald Reagan Washington (DCA) 2 18:25 Denver (DEN) United Airlines UA 746 Non-stop Boeing 757-300 (753) 4:08 Valid until 2026-01-05
Non-Direct Flights:
Thu,Fri,Sun 16:25 Ronald Reagan Washington (DCA) 1 19:40 Denver (DEN) Southwest Airlines WN 147 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-01-11 through 2026-01-16
Mon,Sun 16:25 Ronald Reagan Washington (DCA) 1 19:40 Denver (DEN) Southwest Airlines WN 147 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 16:25 Ronald Reagan Washington (DCA) 1 19:40 Denver (DEN) Southwest Airlines WN 147 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-02-01 through 2026-02-06
Mon,Sun 16:25 Ronald Reagan Washington (DCA) 1 19:40 Denver (DEN) Southwest Airlines WN 147 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-02-09 through 2026-02-15

1 2 3

A domestic route departing from the Ronald Reagan Washington airport (DCA) and arriving at Denver airport (DEN).
The flight distance is 1471 miles, or 2368 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 4:00 and 4:22.

Return (DEN-DCA) flights

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All airlines flying from Ronald Reagan Washington (DCA) to Denver (DEN).

FLIGHT SCHEDULE

Direct Flights:

Frontier Airlines F9685

08:00

Ronald Reagan Washington (DCA) 1

10:13

Denver (DEN)

Valid until 2026-01-04

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 4:13, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9685

08:00

Ronald Reagan Washington (DCA) 1

10:13

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 4:13, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9685

08:00

Ronald Reagan Washington (DCA) 1

10:22

Denver (DEN)

Operates only on 2026-01-13

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:22, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9685

08:00

Ronald Reagan Washington (DCA) 1

10:22

Denver (DEN)

Effective 2026-01-14 through 2026-01-19

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 4:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9685

08:00

Ronald Reagan Washington (DCA) 1

10:22

Denver (DEN)

Effective 2026-01-22 through 2026-02-09

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 4:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9685

08:00

Ronald Reagan Washington (DCA) 1

10:22

Denver (DEN)

Effective 2026-02-10 through 2026-03-31

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9685

08:00

Ronald Reagan Washington (DCA) 1

10:13

Denver (DEN)

Effective 2026-04-01 through 2026-04-13

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:13, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9685

08:01

Ronald Reagan Washington (DCA) 1

10:14

Denver (DEN)

Operates only on 2026-01-08

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 4:13, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9685

08:01

Ronald Reagan Washington (DCA) 1

10:14

Denver (DEN)

Effective 2026-01-09 through 2026-01-12

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 4:13, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9685

08:59

Ronald Reagan Washington (DCA) 1

11:12

Denver (DEN)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:13, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9685

08:59

Ronald Reagan Washington (DCA) 1

11:12

Denver (DEN)

Effective 2026-01-07 through 2026-01-10

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:13, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9685

08:59

Ronald Reagan Washington (DCA) 1

11:21

Denver (DEN)

Effective 2026-01-21 through 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

13:00

Ronald Reagan Washington (DCA) 1

15:16

Denver (DEN)

Effective 2026-01-27 through 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:16, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

13:00

Ronald Reagan Washington (DCA) 1

15:16

Denver (DEN)

Effective 2026-02-11 through 2026-02-26

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:16, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

13:00

Ronald Reagan Washington (DCA) 1

15:16

Denver (DEN)

Effective 2026-02-14 through 2026-02-23

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:16, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9687

13:00

Ronald Reagan Washington (DCA) 1

15:16

Denver (DEN)

Effective 2026-02-27 through 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 4:16, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9687

13:00

Ronald Reagan Washington (DCA) 1

15:16

Denver (DEN)

Effective 2026-03-01 through 2026-03-05

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 4:16, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

13:00

Ronald Reagan Washington (DCA) 1

15:16

Denver (DEN)

Effective 2026-03-29 through 2026-03-31

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:16, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9687

13:00

Ronald Reagan Washington (DCA) 1

15:06

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:06, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:15

Denver (DEN)

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 4:15, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:14

Denver (DEN)

Valid until 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 4:14, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:15

Denver (DEN)

Valid until 2026-01-05

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun

Duration: 4:15, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:15

Denver (DEN)

Effective 2026-01-06 through 2026-01-11

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat

Sun

Duration: 4:15, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:15

Denver (DEN)

Effective 2026-01-09 through 2026-01-12

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 4:15, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:22

Denver (DEN)

Effective 2026-01-13 through 2026-01-20

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat

Sun

Duration: 4:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:22

Denver (DEN)

Effective 2026-01-15 through 2026-01-19

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 4:22, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:22

Denver (DEN)

Effective 2026-01-21 through 2026-02-09

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 4:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:22

Denver (DEN)

Effective 2026-03-06 through 2026-03-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 4:22, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9687

14:00

Ronald Reagan Washington (DCA) 1

16:22

Denver (DEN)

Effective 2026-03-10 through 2026-03-24

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:12

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 4:12, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:12

Denver (DEN)

Valid until 2026-01-04

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 4:12, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:12

Denver (DEN)

Effective 2026-01-07 through 2026-01-11

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat

Sun

Duration: 4:12, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:12

Denver (DEN)

Effective 2026-01-09 through 2026-01-12

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 4:12, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:16

Denver (DEN)

Operates only on 2026-01-14

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:16, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:16

Denver (DEN)

Effective 2026-01-15 through 2026-02-09

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 4:16, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:16

Denver (DEN)

Effective 2026-02-12 through 2026-03-07

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 4:16, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:16

Denver (DEN)

Effective 2026-03-08 through 2026-03-30

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 4:16, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F9689

18:00

Ronald Reagan Washington (DCA) 1

20:12

Denver (DEN)

Effective 2026-04-01 through 2026-04-13

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:12, non-stop
Airbus A320neo (32N)

Direct Flights:

United Airlines UA746

16:07

Ronald Reagan Washington (DCA) 2

18:24

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:17, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA746

16:07

Ronald Reagan Washington (DCA) 2

18:07

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA746

16:07

Ronald Reagan Washington (DCA) 2

18:07

Denver (DEN)

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Boeing 757-300 (753)

Direct Flights:

United Airlines UA746

16:11

Ronald Reagan Washington (DCA) 2

18:25

Denver (DEN)

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:14, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA746

16:11

Ronald Reagan Washington (DCA) 2

18:29

Denver (DEN)

Effective 2026-02-12 through 2026-02-27

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:18, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA746

16:11

Ronald Reagan Washington (DCA) 2

18:29

Denver (DEN)

Effective 2026-02-14 through 2026-02-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:18, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA746

16:11

Ronald Reagan Washington (DCA) 2

18:29

Denver (DEN)

Effective 2026-02-28 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:18, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA746

16:17

Ronald Reagan Washington (DCA) 2

18:25

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:08, non-stop
Boeing 757-300 (753)

Non-Direct Flights:

Southwest Airlines WN147

16:25

Ronald Reagan Washington (DCA) 1

19:40

Denver (DEN)

Effective 2026-01-11 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN147

16:25

Ronald Reagan Washington (DCA) 1

19:40

Denver (DEN)

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN147

16:25

Ronald Reagan Washington (DCA) 1

19:40

Denver (DEN)

Effective 2026-02-01 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN147

16:25

Ronald Reagan Washington (DCA) 1

19:40

Denver (DEN)

Effective 2026-02-09 through 2026-02-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

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A domestic route departing from the Ronald Reagan Washington airport (DCA) and arriving at Denver airport (DEN).
The flight distance is 1471 miles, or 2368 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 4:00 and 4:22.

Return (DEN-DCA) flights

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