
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Rapid City (RAP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $331 (American Airlines) |
Popular in | August |
Cheapest in | November |
Average price | $352 |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Tue 4/13
6:40 pm-10:39 pm
1 stop5h 59m
Rapid City
Sat 4/17
11:30 am-12:20 am
2 stops10h 50m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Fri 11/27
6:10 am-11:58 am
1 stop7h 48m
Rapid City
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Tue 4/13
2:25 pm-7:08 pm
1 stop6h 43m
Rapid City
Sat 4/17
5:30 am-1:27 pm
1 stop5h 57m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Thu 4/8
7:30 am-11:12 am
1 stop5h 42m
Rapid City
Sun 4/11
6:55 am-1:48 pm
1 stop4h 53m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Thu 12/3
6:00 am-2:00 pm
2 stops10h 00m
Rapid City
Thu 12/10
4:36 pm-11:36 pm
1 stop5h 00m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Fri 3/12
6:00 am-3:46 pm
2 stops11h 46m
Rapid City
Sun 3/14
4:00 pm-11:33 pm
1 stop5h 33m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Tue 12/8
12:35 pm-5:13 pm
1 stop6h 38m
Rapid City
Sat 12/12
5:00 am-12:58 pm
1 stop5h 58m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Sat 11/28
6:11 am-10:31 am
1 stop6h 20m
Rapid City
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
Washington, D.C.Rapid City
IAD Washington, D.C. Dulles Intl - RAP Rapid City
IADRAP
Washington, D.C. Dulles Intl
Fri 11/20
7:25 am-1:43 pm
1 stop8h 18m
Rapid City
Tue 11/24
2:23 pm-12:41 am
2 stops8h 18m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Comfort
Entertainment
Boarding
Crew
Food
Overall
Reviews
Dane,Jan 2026
IAD - TYS
Comfort
Entertainment
Boarding
Crew
Food
Overall
Reviews
Dane,Jan 2026
IAD - TYS
Find useful and relevant information for your journey from Dulles Intl to Rapid City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$307 | Average$596 | FlexibilityNo cancel fee | On-time69% |