$123 Cheap Flights from Baltimore (BWI) to Portland (PWM)

View $123 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Portland Intl. Jetport Airport (PWM)

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Cheap Flights from Baltimore to Portland (BWI-PWM)

Prices were available within the past 7 days and start at $123 for one-way flights and $245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Aug 21 - Mon, Aug 25
BWI
Baltimore
PWM
Portland
$245 Roundtrip, found 2 hours ago
$245
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Thu, Aug 21 from Baltimore to Portland, returning Mon, Aug 25, priced at $245 found 2 hours ago
American Airlines
Thu, Sep 4 - Mon, Sep 8
BWI
Baltimore
PWM
Portland
$250 Roundtrip, found 5 hours ago
$250
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Sep 4 from Baltimore to Portland, returning Mon, Sep 8, priced at $250 found 5 hours ago
Delta
Thu, Aug 21 - Mon, Aug 25
BWI
Baltimore
PWM
Portland
$252 Roundtrip, found 2 hours ago
$252
Roundtrip
found 2 hours ago
Select Delta flight, departing Thu, Aug 21 from Baltimore to Portland, returning Mon, Aug 25, priced at $252 found 2 hours ago
Southwest Airlines
Thu, Sep 11 - Mon, Sep 15
BWI
Baltimore
PWM
Portland
$252 Roundtrip, found 2 days ago
$252
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Thu, Sep 11 from Baltimore to Portland, returning Mon, Sep 15, priced at $252 found 2 days ago
Southwest Airlines
Sat, Aug 9 - Wed, Aug 13
BWI
Baltimore
PWM
Portland
$253 Roundtrip, just found
$253
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Aug 9 from Baltimore to Portland, returning Wed, Aug 13, priced at $253 just found
American Airlines
Wed, Oct 15 - Thu, Oct 16
BWI
Baltimore
PWM
Portland
$255 Roundtrip, just found
$255
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 15 from Baltimore to Portland, returning Thu, Oct 16, priced at $255 just found
Delta
Mon, Aug 4 - Wed, Aug 6
BWI
Baltimore
PWM
Portland
$255 Roundtrip, just found
$255
Roundtrip
just found
Select Delta flight, departing Mon, Aug 4 from Baltimore to Portland, returning Wed, Aug 6, priced at $255 just found
Southwest Airlines
Thu, Sep 25 - Mon, Sep 29
BWI
Baltimore
PWM
Portland
$255 Roundtrip, found 11 hours ago
$255
Roundtrip
found 11 hours ago
Select Southwest Airlines flight, departing Thu, Sep 25 from Baltimore to Portland, returning Mon, Sep 29, priced at $255 found 11 hours ago
Frontier Airlines
Sat, Oct 18 - Sat, Oct 25
BWI
Baltimore
PWM
Portland
$276 Roundtrip, found 2 days ago
$276
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Oct 18 from Baltimore to Portland, returning Sat, Oct 25, priced at $276 found 2 days ago
United
Tue, Sep 2 - Wed, Oct 1
BWI
Baltimore
PWM
Portland
$499 Roundtrip, found 3 days ago
$499
Roundtrip
found 3 days ago
Select United flight, departing Tue, Sep 2 from Baltimore to Portland, returning Wed, Oct 1, priced at $499 found 3 days 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

Flights from Baltimore (BWI) to Portland (PWM)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Portland Intl. Jetport
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$245
Distance
451 mi
Average flight time
1 hour 30 mins

Baltimore to Portland Flights

The cheapest times to fly from Baltimore to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Portland are during the month of August. You can find some of the cheapest flights from Baltimore to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Portland

Sunday is one of the best days to book for cheap flights from Baltimore to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $123 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM) cost?
Pick up cheap return tickets starting at $282 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving BWI on July 21 2025 and touching down at PWM. The price was last updated on June 24 2025 and has not changed since.
What is the cheapest month to fly from BWI to PWM?
The cheapest flights from BWI to PWM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM)?
When setting off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI), you can catch a nonstop flight to Portland Intl. Jetport Airport (PWM) with Southwest Airlines.
What is the cheapest airline that flies from BWI to PWM?
Right now, the cheapest carrier operating one-way flights from BWI to PWM is Southwest Airlines. You can book a seat on this route from $125. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BWI on September 11 2025. Prices were last updated on June 24 2025 and have not changed since.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM)?
Each day on average, 3 nonstop flights operate from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM). Pick the departure time that best suits your travel plans.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM)?
More people fly between BWI and PWM at 11 AM than at any other time of day. Rather skip the crowds? Pick a flight outside the busiest times and you could save on your fare as well.
What day of the week has the most flights from BWI to PWM?
Friday offers the most flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM). Consider taking off on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM)?
Baltimore Washington Intl. Thurgood Marshall Airport (BWI)'s earliest flight to Portland Intl. Jetport Airport (PWM) leaves at approximately 10:40AM UTC-5. With a travel duration of 1h 30m, you'll touch down at around 12:10PM UTC-5.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM)?
Flights from BWI to PWM have an average travel time of 1 hour and 28 minutes. The total distance between the two airports is 450 mi.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM)?
Choose a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Portland from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Explore your flight options from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM). This is the only airport in Portland you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM) last-minute?
Booking your plane ticket from BWI to PWM shortly before your journey is typically more expensive. But if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a BWI to PWM flight and hotel package?
Securing a BWI to PWM flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our impressive range of stays and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Jetport Airport (PWM)?
You can usually reschedule or cancel your BWI to PWM flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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