
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $59 (Kiwi.com) |
One-way from | $30 (Kiwi.com) |
Popular in | January |
Cheapest in | August |
Average price | $322 |
Good round-trip deal | $98 or less |
Good one-way deal | $55 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Blountville
IAD - TRI
IADTRI
Washington, D.C. Dulles Intl
Fri 2/20
2:58 pm-4:28 pm
Nonstop1h 30m
Blountville Tri Cities TN/VA
Mon 2/23
12:53 pm-2:18 pm
Nonstop1h 25m
Washington, D.C.Blountville
IAD - TRI
IADTRI
Washington, D.C. Dulles Intl
Fri 3/27
2:58 pm-4:28 pm
Nonstop1h 30m
Blountville Tri Cities TN/VA
Mon 3/30
12:53 pm-2:18 pm
Nonstop1h 25m
Washington, D.C.Knoxville
IAD - TYS
IADTYS
Washington, D.C. Dulles Intl
Sat 3/7
9:00 am-10:49 am
Nonstop1h 49m
Knoxville McGhee Tyson
Mon 3/9
7:25 pm-9:11 pm
Nonstop1h 46m
Washington, D.C.Knoxville
IAD - TYS
IADTYS
Washington, D.C. Dulles Intl
Tue 4/14
6:00 am-11:15 am
1 stop5h 15m
Knoxville McGhee Tyson
Sat 4/18
5:30 am-9:50 am
1 stop4h 20m
Washington, D.C.Blountville
IAD - TRI
IADTRI
Washington, D.C. Dulles Intl
Tue 2/17
7:15 am-12:17 pm
1 stop5h 02m
Blountville Tri Cities TN/VA
Tue 2/24
7:13 pm-12:21 am
1 stop5h 08m
Washington, D.C.Knoxville
IAD - TYS
IADTYS
Washington, D.C. Dulles Intl
Wed 2/4
5:30 pm-7:27 pm
Nonstop1h 57m
Knoxville McGhee Tyson
Sat 2/7
2:25 pm-4:10 pm
Nonstop1h 45m
Washington, D.C.Blountville
IAD - TRI
IADTRI
Washington, D.C. Dulles Intl
Mon 5/4
2:58 pm-4:28 pm
Nonstop1h 30m
Blountville Tri Cities TN/VA
Fri 5/8
5:02 pm-7:27 am
1 stop14h 25m
Washington, D.C.Knoxville
IAD - TYS
IADTYS
Washington, D.C. Dulles Intl
Fri 2/6
7:30 pm-11:45 pm
1 stop4h 15m
Knoxville McGhee Tyson
Sun 2/8
5:40 am-9:13 am
1 stop3h 33m
Washington, D.C.Knoxville
IAD - TYS
IADTYS
Washington, D.C. Dulles Intl
Wed 2/4
7:15 am-11:08 am
1 stop3h 53m
Knoxville McGhee Tyson
Sat 2/7
5:40 am-9:49 am
1 stop4h 09m
Washington, D.C.Knoxville
IAD - TYS
IADTYS
Washington, D.C. Dulles Intl
Tue 4/14
9:00 am-10:50 am
Nonstop1h 50m
Knoxville McGhee Tyson
Sat 4/18
9:40 am-11:25 am
Nonstop1h 45m
Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tennessee (average of $45). Flying from Washington, D.C. Dulles Intl Airport to Tennessee in September is currently the most expensive (average of $204). 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.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Tennessee in the evening. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight in the morning.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Tennessee flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from IAD to USTN are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).
Overall
Comfort
Crew
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Crew
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Crew
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Crew
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Crew
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$40 | Average$93 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$78 | Average$308 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$159 | Average$345 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$266 | Average$431 | FlexibilityNo cancel fee | On-time71% |