Popular airlines from Baltimore to Great Diamond Island
DeltaDelta
Southwest AirlinesSouthwest Airlines
American AirlinesAmerican Airlines
UnitedUnited
Frontier AirlinesFrontier Airlines
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Today's featured flight deals from Baltimore to Great Diamond Island
Nonstop
Carry-on included
Lower price than typical
- Baltimore (BWI) to Portland (PWM).Southwest Airlines, nonstop.Departing on Thu, Aug 21 at 9:45pm from Baltimore, arriving at 11:20pm in Portland.Returning on Thu, Aug 28 at 6:00am from Portland, arriving at 12:30pm in Baltimore.Select Southwest Airlines flight departing on Thu, Aug 21 at 9:45pm from Baltimore, returning on Thu, Aug 28 at 6:00am from Portland priced at $26640% less than typical$266
- Baltimore (BWI) to Portland (PWM).Southwest Airlines, nonstop.Departing on Thu, Aug 21 at 9:45pm from Baltimore, arriving at 11:20pm in Portland.Returning on Thu, Aug 28 at 6:33pm from Portland, arriving at 11:17pm in Baltimore.Select Southwest Airlines flight departing on Thu, Aug 21 at 9:45pm from Baltimore, returning on Thu, Aug 28 at 6:33pm from Portland priced at $26640% less than typical$266
- Baltimore (BWI) to Portland (PWM).Southwest Airlines, nonstop.Departing on Tue, Jul 29 at 8:10am from Baltimore, arriving at 9:45am in Portland.Returning on Tue, Aug 5 at 6:59pm from Portland, arriving on Wed, Aug 6 at 12:54am in Baltimore.Select Southwest Airlines flight departing on Tue, Jul 29 at 8:10am from Baltimore, returning on Tue, Aug 5 at 6:59pm from Portland priced at $31135% less than typical$311
- Baltimore (BWI) to Portland (PWM).Southwest Airlines, nonstop.Departing on Tue, Jul 29 at 4:40pm from Baltimore, arriving at 6:10pm in Portland.Returning on Tue, Aug 5 at 6:59pm from Portland, arriving on Wed, Aug 6 at 12:54am in Baltimore.Select Southwest Airlines flight departing on Tue, Jul 29 at 4:40pm from Baltimore, returning on Tue, Aug 5 at 6:59pm from Portland priced at $31135% less than typical$311
- Baltimore (BWI) to Portland (PWM).Southwest Airlines, nonstop.Departing on Tue, Jul 29 at 9:50pm from Baltimore, arriving at 11:25pm in Portland.Returning on Tue, Aug 5 at 6:59pm from Portland, arriving on Wed, Aug 6 at 12:54am in Baltimore.Select Southwest Airlines flight departing on Tue, Jul 29 at 9:50pm from Baltimore, returning on Tue, Aug 5 at 6:59pm from Portland priced at $31135% less than typical$311
Cheap Flights from Baltimore to Great Diamond Island (WAS-PWM)
Prices were available within the past 7 days and start at $89 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Sat, Aug 30 - Sat, Sep 6
DCA
Washington
PWM
Portland
$177 Roundtrip, found 6 days ago
$177
Roundtrip
found 6 days ago
Mon, Sep 1 - Mon, Sep 8
BWI
Baltimore
PWM
Portland
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Mon, Aug 18 - Thu, Aug 21
DCA
Washington
PWM
Portland
$177 Roundtrip, found 2 hours ago
$177
Roundtrip
found 2 hours ago
Wed, Aug 20 - Tue, Aug 26
DCA
Washington
PWM
Portland
$181 Roundtrip, found 5 days ago
$181
Roundtrip
found 5 days ago
Mon, Aug 18 - Thu, Aug 21
DCA
Washington
PWM
Portland
$197 Roundtrip, found 2 hours ago
$197
Roundtrip
found 2 hours ago
Sun, Sep 7 - Sat, Sep 13
DCA
Washington
PWM
Portland
$204 Roundtrip, found 13 hours ago
$204
Roundtrip
found 13 hours ago
Find the cheapest month to fly from Baltimore (BWI) to Portland (PWM)
January is typically the cheapest month to fly
From $130 - $532 per traveler.
Graph displaying average flight prices per month
Alternative airports near Great Diamond Island
Prices were available within the past 7 days. Prices and availability are subject to change.
Select flight to Portland Intl. Jetport PWM. Cheapest option available. Flights from $521
PWM
Portland Intl. Jetport
Cheapest
Explore a world of travel with Expedia
Explore a world of travel with Expedia
- Portland Hotels
- Hotels near Fort Gorges
- Peaks Island Hotels
- B&B in Peaks Island
- Cabin Rentals in Peaks Island
- Hotels with Hot Tubs in Peaks Island
- Gay friendly Hotels in Peaks Island
- Hotel Wedding Venues Hotels in Peaks Island
- Vacation Homes in Peaks Island
- RV Parks in Peaks Island
- Hotels with Tennis Courts in Peaks Island
- Hostels in Peaks Island
- Cottages in Peaks Island
- Lodges in Peaks Island
- 4 Star Hotels in Peaks Island
- Beach Hotels in Peaks Island
- Hotels & Resorts for Couples in Peaks Island
- Motels in Peaks Island
- Long Island Hotels
- RV Parks in Long Island
- Vacation Homes in Long Island
- Cabin Rentals in Long Island
- B&B in Long Island
- Condo Rentals in Long Island
- Romantic Hotels in Long Island
- Guest Houses in Long Island
- Gay friendly Hotels in Long Island
- Hostels in Long Island
- Hotels near Richard Boyd Art Gallery
- Hotels near Umbrella Cover Museum
- Hotels near Fifth Maine Museum
- Hotels near Mackworth Island
- Hotels near Downtown Portland
- Hotels near East End Beach
- Hotels near Spring Point Ledge Lighthouse
- Cheap Hotels in Portland
- Hotels near Eastern Promenade
- Hotels near East Prom Trail
- Hotels near Portland Harbor Museum
- Oceanfront Hotels in Portland
- Hotels near Bug Light
- Hotels near Fort Preble
- Hotels near South Portland Historical Society Museum
- Hotels near Maine Narrow Gauge Railroad Company and Museum
- Hotels near Munjoy Hill
- Hotels near East End
- Hotels near Portland Observatory
- Hotels near Southern Maine Community College
- Hotels near Old Port
- Hotels near Willard Beach
- 3 Star Hotels in Willard Beach
- Hotels with Free Airport Shuttle in Portland
- B&B in Portland
- Hotels near Willard Beach
- Hotels near Gilsland Farm Audubon Center
- Pet-friendly Hotels in Portland
- South Portland Hotels
- Motels in Portland
- Hotels near Maine Jewish Museum
- Cabin Rentals in Portland
- Hotels near Casco Bay Lines Ferry Terminal
- Luxury Hotels in Portland
- Hotels with an Indoor Pool in Portland
- Resorts & Hotels with Spas in Portland
- Visit Peaks Island
- Peaks Island Vacations
- Visit Long Island
- Long Island Vacations
- Umbrella Cover Museum
- Mackworth Island
- East End Beach
- Spring Point Ledge Lighthouse
- Eastern Promenade
- Bug Light
- Fort Preble
- South Portland Historical Society Museum
- Maine Narrow Gauge Railroad Company and Museum
- Visit Old Port
- Southern Maine Community College
- Visit Willard Beach
- Visit Portland
- Gilsland Farm Audubon Center
- Portland Vacations
- Casco Bay Lines Ferry Terminal
- Maine Jewish Museum
*Available to One Key members.