
| Most accurate provider | eDreams 3 stars | 
|---|---|
| Most trusted provider | eDreams 3 stars | 
| Round-trip from | $209 (Delta) | 
| One-way from | $128 (American Airlines) | 
| Popular in | June | 
| Cheapest in | September | 
| Average price | $294 | 
| Good round-trip deal | $272 or less | 
| Good one-way deal | $169 or less | 
Fly from
Fly to
Route
Depart
Return
Price
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Wed 12/3
4:53 pm-11:08 pm
1 stop6h 15m
Washington, D.C. Reagan-National
Mon 12/8
5:02 pm-11:59 pm
1 stop6h 57m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Thu 12/4
4:53 pm-11:08 pm
1 stop6h 15m
Washington, D.C. Reagan-National
Sat 12/6
9:36 am-4:00 pm
1 stop6h 24m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Thu 1/22
6:17 am-1:52 pm
2 stops7h 35m
Washington, D.C. Reagan-National
Sat 1/24
6:04 am-12:08 pm
1 stop6h 04m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Fri 11/14
10:45 am-2:35 pm
1 stop3h 50m
Washington, D.C. Reagan-National
Tue 11/18
9:05 am-1:36 pm
1 stop4h 31m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Thu 11/13
6:00 am-4:35 pm
2 stops10h 35m
Washington, D.C. Reagan-National
Mon 11/17
3:06 pm-11:54 pm
2 stops8h 48m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Thu 11/20
6:00 am-12:29 pm
1 stop6h 29m
Washington, D.C. Reagan-National
Sat 11/22
5:03 pm-11:54 pm
1 stop6h 51m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Wed 1/28
6:00 am-10:13 am
1 stop4h 13m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Thu 1/22
3:56 pm-9:30 pm
1 stop5h 34m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Thu 1/29
6:00 am-10:13 am
1 stop4h 13m
PortlandWashington, D.C.
PWM - DCA
PWMDCA
Portland
Tue 1/27
5:56 pm-11:10 pm
1 stop5h 14m
| 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 | 
Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Washington, D.C. Reagan-National Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Washington, D.C. Reagan-National Airport (average of $88). Flying from Portland, Maine to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $147). 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.
Unlike in the morning, when flights are generally more expensive, you can save up to 65% on flights from Portland, Maine to Washington, D.C. Reagan-National Airport by exploring options for tickets in the evening.
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Sebrena,Oct 2025
IAH - RSW
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$189 | Average$313 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$218 | Average$314 | FlexibilityNo cancel fee | On-time69% |