Afternoon and evening check-in areas at IAD can be crowded. Arrive early to navigate the busy terminals efficiently.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $179 (Kiwi.com) |
One-way from | $74 (Trip.com) |
Popular in | March |
Cheapest in | January |
Average price | $239 |
Good round-trip deal | $204 or less |
Good one-way deal | $258 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Thu 11/20
10:20 pm-11:27 pm
Nonstop1h 07m
Pittsburgh
Tue 11/25
6:15 am-7:26 am
Nonstop1h 11m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Tue 12/30
8:32 am-9:44 am
Nonstop1h 12m
Pittsburgh
Fri 1/9
10:35 am-11:45 am
Nonstop1h 10m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Tue 11/25
12:55 pm-2:02 pm
Nonstop1h 07m
Pittsburgh
Tue 12/2
6:15 am-7:26 am
Nonstop1h 11m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Mon 12/29
12:50 pm-2:03 pm
Nonstop1h 13m
Pittsburgh
Sat 1/3
6:00 am-7:22 am
Nonstop1h 22m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Fri 12/5
8:25 am-2:22 pm
1 stop5h 57m
Pittsburgh
Sun 12/7
5:20 pm-11:21 am
1 stop18h 01m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Sat 11/8
12:55 pm-2:02 pm
Nonstop1h 07m
Pittsburgh
Wed 11/12
10:35 am-11:38 am
Nonstop1h 03m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Thu 11/13
12:55 pm-2:02 pm
Nonstop1h 07m
Pittsburgh
Sun 11/16
6:15 am-7:26 am
Nonstop1h 11m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Wed 11/12
10:20 pm-11:27 pm
Nonstop1h 07m
Pittsburgh
Sat 11/15
6:15 am-7:26 am
Nonstop1h 11m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Mon 12/29
8:25 am-2:22 pm
1 stop5h 57m
Pittsburgh
Sat 1/3
2:55 pm-11:40 am
1 stop20h 45m
Washington, D.C.Pittsburgh
IAD - PIT
IADPIT
Washington, D.C. Dulles Intl
Sat 11/8
8:25 am-2:22 pm
1 stop5h 57m
Pittsburgh
Sun 11/9
2:55 pm-7:03 am
1 stop16h 08m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Pittsburgh (average of $113). Flying from Washington, D.C. Dulles Intl Airport to Pittsburgh in May is currently the most expensive (average of $158). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Pittsburgh in the evening. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Pittsburgh flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Sebrena,Oct 2025
IAH - RSW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$113 | Average$158 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$262 | FlexibilityNo cancel fee | On-time69% |