
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $198 (United Airlines) |
One-way from | $131 (United Airlines) |
Popular in | November |
Cheapest in | January |
Average price | $187 |
Good round-trip deal | $302 or less |
Good one-way deal | $181 or less |
Fly from
Fly to
Route
Depart
Return
Price
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Sat 3/14
7:08 pm-11:19 pm
1 stop4h 11m
Washington, D.C. Dulles Intl
Mon 3/16
5:20 pm-7:13 pm
Nonstop1h 53m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Sat 1/10
2:31 pm-4:30 pm
Nonstop1h 59m
Washington, D.C. Dulles Intl
Sat 1/17
5:10 pm-6:54 pm
Nonstop1h 44m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Wed 1/14
6:17 am-11:43 am
1 stop5h 26m
Washington, D.C. Dulles Intl
Sun 1/18
7:49 pm-12:20 am
1 stop4h 31m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Sat 3/14
4:50 pm-10:59 pm
1 stop6h 09m
Washington, D.C. Dulles Intl
Mon 3/16
7:59 pm-12:10 am
1 stop4h 11m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Thu 1/22
2:35 pm-7:09 pm
1 stop4h 34m
Washington, D.C. Dulles Intl
Sat 1/24
6:00 am-12:08 pm
1 stop6h 08m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Sat 1/10
6:17 am-11:43 am
1 stop5h 26m
Washington, D.C. Dulles Intl
Sat 1/17
7:49 pm-11:59 pm
1 stop4h 10m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Sat 1/10
2:35 pm-7:09 pm
1 stop4h 34m
Washington, D.C. Dulles Intl
Tue 1/13
7:49 pm-12:26 am
1 stop4h 37m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Thu 1/8
6:17 am-11:43 am
1 stop5h 26m
Washington, D.C. Dulles Intl
Sun 1/11
6:00 am-12:08 pm
1 stop6h 08m
PortlandWashington, D.C.
PWM - IAD
PWMIAD
Portland
Thu 1/29
6:16 am-11:43 am
1 stop5h 27m
Washington, D.C. Dulles Intl
Sun 2/1
7:49 pm-12:20 am
1 stop4h 31m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Thu 1/22
6:16 am-10:28 am
1 stop4h 12m
Washington, D.C. Reagan-National
Sat 1/24
6:04 am-12:08 pm
1 stop6h 04m
Currently, January is the cheapest month in which you can book a flight from Portland, Maine to District of Columbia (average of $38). Flying from Portland, Maine to District of Columbia in October is currently the most expensive (average of $137). 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 typically best to fly out from Portland, Maine to District of Columbia in the evening. Doing so could potentially save you 15% on the flight price compared to flying in the afternoon, which is usually more expensive.
Travelers seeking maximum savings on their Portland, Maine to District of Columbia flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from PWM to USDC are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Overall
Comfort
Boarding
Crew
Food
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$176 | Average$258 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$313 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$194 | Average$293 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$356 | FlexibilityNo cancel fee | On-time63% |