$114 Cheap Delta flights Baltimore (BWI) to Portland (PWM)

Grab affordable return Delta Air Lines flights from $227 from BWI to PWM by filtering your results from “Price (lowest to highest)” on Expedia. Or search for options from $114 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the least expensive months to travel to Portland with Delta Air Lines. You could also find great deals on return and one-way tickets in February.

To find cheap Delta Air Lines fares from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence how much you pay. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Select our “Nonstop” filter when searching for direct Delta Air Lines flights from BWI to PWM. It’s also a great way to compare other carriers servicing the same direct route.

Filter your results by “Early Morning” and “Morning” to find the earliest departures from BWI to PWM. Jetting off early means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Catch a Delta Air Lines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland, and you’ll probably arrive at Portland Intl. Jetport Airport (PWM). This is the airline’s main hub in this city.

Flying from BWI to PWM with Delta Air Lines means enjoying a host of benefits, such as an excellent in-flight experience and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee is typically charged if you modify or cancel your booking more than 24 hours after it has been confirmed. To find plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when you search for flights. To learn more about canceling or changing your reservation, head to “Trips,” select your flight and click on “Manage Booking.”