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

View $123 flight on Thu, Aug 7, 2025Opens in a new window

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

Cheap Flights from Portland to Baltimore (PWM-BWI)

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 7 - Mon, Aug 11
PWM
Portland
BWI
Baltimore
$245 Roundtrip, just found
$245
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Aug 7 from Portland to Baltimore, returning Mon, Aug 11, priced at $245 just found
Delta
Tue, Aug 5 - Tue, Aug 12
PWM
Portland
BWI
Baltimore
$250 Roundtrip, found 8 hours ago
$250
Roundtrip
found 8 hours ago
Select Delta flight, departing Tue, Aug 5 from Portland to Baltimore, returning Tue, Aug 12, priced at $250 found 8 hours ago
Southwest Airlines
Sat, Aug 30 - Tue, Sep 2
PWM
Portland
BWI
Baltimore
$253 Roundtrip, found 8 hours ago
$253
Roundtrip
found 8 hours ago
Select Southwest Airlines flight, departing Sat, Aug 30 from Portland to Baltimore, returning Tue, Sep 2, priced at $253 found 8 hours ago
American Airlines
Tue, Aug 5 - Tue, Aug 12
PWM
Portland
BWI
Baltimore
$255 Roundtrip, found 8 hours ago
$255
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Tue, Aug 5 from Portland to Baltimore, returning Tue, Aug 12, priced at $255 found 8 hours ago
Delta
Thu, Aug 7 - Mon, Aug 11
PWM
Portland
BWI
Baltimore
$255 Roundtrip, just found
$255
Roundtrip
just found
Select Delta flight, departing Thu, Aug 7 from Portland to Baltimore, returning Mon, Aug 11, priced at $255 just found
American Airlines
Thu, Oct 30 - Mon, Nov 3
PWM
Portland
BWI
Baltimore
$257 Roundtrip, found 4 days ago
$257
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Oct 30 from Portland to Baltimore, returning Mon, Nov 3, priced at $257 found 4 days ago
Southwest Airlines
Sat, Aug 30 - Tue, Sep 2
PWM
Portland
BWI
Baltimore
$258 Roundtrip, found 8 hours ago
$258
Roundtrip
found 8 hours ago
Select Southwest Airlines flight, departing Sat, Aug 30 from Portland to Baltimore, returning Tue, Sep 2, priced at $258 found 8 hours ago
Southwest Airlines
Wed, Aug 27 - Mon, Sep 1
PWM
Portland
BWI
Baltimore
$260 Roundtrip, found 11 hours ago
$260
Roundtrip
found 11 hours ago
Select Southwest Airlines flight, departing Wed, Aug 27 from Portland to Baltimore, returning Mon, Sep 1, priced at $260 found 11 hours ago
Frontier Airlines
Sat, Aug 23 - Fri, Aug 29
PWM
Portland
BWI
Baltimore
$281 Roundtrip, found 5 days ago
$281
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Portland to Baltimore, returning Fri, Aug 29, priced at $281 found 5 days ago
United
Wed, Oct 1 - Sat, Oct 4
PWM
Portland
BWI
Baltimore
$537 Roundtrip, found 13 hours ago
$537
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Oct 1 from Portland to Baltimore, returning Sat, Oct 4, priced at $537 found 13 hours ago

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

January is typically the cheapest month to fly

From $128 - $532 per traveler.

Graph displaying average flight prices per month

Flights from Portland (PWM) to Baltimore (BWI)
Origin airport
Portland Intl. Jetport
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$245
Distance
451 mi
Average flight time
1 hour 36 mins

Portland to Baltimore Flights

The cheapest times to fly from Portland to Baltimore

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 Portland to Baltimore are during the month of August. You can find some of the cheapest flights from Portland to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Baltimore

Sunday is one of the best days to book for cheap flights from Portland to Baltimore: 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 Portland to Baltimore

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 Portland to Baltimore 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 Portland to Baltimore 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 Portland to Baltimore 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 Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Snag cheap return tickets starting from $245 from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). 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 PWM on July 19 2025 and touching down at BWI. The price was last updated on June 29 2025 and has not changed since.
What is the cheapest month to fly from PWM to BWI?
The cheapest flights from PWM to BWI 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 Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Take a nonstop flight with Southwest Airlines and go straight from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
What is the cheapest airline that flies from PWM to BWI?
With prices as low as $123 for a one-way journey from PWM to BWI, Southwest Airlines is currently the cheapest airline operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PWM on September 22 2025. Prices were last updated on June 29 2025 and have not changed since.
How many flights per day from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
When taking off from Portland Intl. Jetport Airport (PWM), you'll have your pick from an average of 3 daily nonstop flights to Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
What are the most popular departure times for flights from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Flights between PWM and BWI are busiest at 3 PM. If you'd like a quieter trip and potentially cheaper tickets, choose a departure outside the usual busy windows.
What day of the week has the most flights from PWM to BWI?
Friday offers the most flights from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Consider traveling on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Catch the earliest flight at around 5:30AM UTC-5, heading out of Portland Intl. Jetport Airport (PWM). You'll be in the air for approximately 1h 40m, reaching Baltimore Washington Intl. Thurgood Marshall Airport (BWI) at approximately 7:10AM UTC-5.
How long does it take to fly from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Flights from PWM to BWI have an average travel time of 1 hour and 42 minutes. The distance between the two airports is 450 mi.
What airline has the least delays from PWM to BWI?
With 100% of flights usually arriving as scheduled, Delta Air Lines has the best on-time performance for direct flights from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). To check your flight status and get notified about any changes, head to the Expedia App.
What is the best time to fly from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To land at Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on time, select a flight that takes off from Portland Intl. Jetport Airport (PWM) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Baltimore from Portland Intl. Jetport Airport (PWM)?
Portland Intl. Jetport Airport (PWM) offers direct flights to Baltimore. These are a few of the airports you can fly to without stopovers:

  • Ronald Reagan Washington National Airport (DCA)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)
  • Washington Dulles Intl. Airport (IAD)

Is it cheaper to buy a plane ticket from Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Last-minute fares from PWM to BWI are typically more expensive. For the lowest rates, start searching for flights early. That being said, if you're flexible with your travel dates, you may land a cheap fare right before you leave.
Is it cheaper to book a PWM to BWI flight and hotel package?
Opting for a PWM to BWI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add car rentals, flights and activities 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 Portland Intl. Jetport Airport (PWM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Typically, you can cancel or reschedule your PWM to BWI flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further information, visit our Customer Service portal.

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*Available to One Key members.