Flights to Casco Bay Islands from Baltimore - ￥13,570

View ￥13,570 flight on Tue, Aug 19, 2025Opens in a new window

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Cheap Flights from Baltimore to Casco Bay Islands (WAS-PWM)

Prices were available within the past 7 days and start at ￥13,570 for one-way flights and ￥51,120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 13 - Mon, Aug 18
DCA
Washington
PWM
Portland
￥51,120 Roundtrip, found 16 hours ago
￥51,120
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Aug 13 from Washington to Portland, returning Mon, Aug 18, priced at ￥51,120 found 16 hours ago
American Airlines
Wed, Aug 13 - Mon, Aug 18
DCA
Washington
PWM
Portland
￥51,620 Roundtrip, found 16 hours ago
￥51,620
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Wed, Aug 13 from Washington to Portland, returning Mon, Aug 18, priced at ￥51,620 found 16 hours ago
American Airlines
Wed, Aug 13 - Mon, Aug 18
DCA
Washington
PWM
Portland
￥56,460 Roundtrip, found 16 hours ago
￥56,460
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Wed, Aug 13 from Washington to Portland, returning Mon, Aug 18, priced at ￥56,460 found 16 hours ago
American Airlines
Wed, Aug 13 - Mon, Aug 18
DCA
Washington
PWM
Portland
￥57,460 Roundtrip, found 16 hours ago
￥57,460
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Wed, Aug 13 from Washington to Portland, returning Mon, Aug 18, priced at ￥57,460 found 16 hours ago
American Airlines
Wed, Aug 13 - Mon, Aug 18
DCA
Washington
PWM
Portland
￥58,680 Roundtrip, found 16 hours ago
￥58,680
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Wed, Aug 13 from Washington to Portland, returning Mon, Aug 18, priced at ￥58,680 found 16 hours ago
Delta
Wed, Aug 13 - Mon, Aug 18
DCA
Washington
PWM
Portland
￥71,430 Roundtrip, found 16 hours ago
￥71,430
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Aug 13 from Washington to Portland, returning Mon, Aug 18, priced at ￥71,430 found 16 hours ago

Find the cheapest month to fly from Baltimore (BWI) to Portland (PWM)

January is typically the cheapest month to fly

From ￥19,049 - ￥77,923 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.