$94 Cheap Flights from Baltimore (BWI) to Portland (PDX)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Find available prices by choosing your travel dates.

Cheap Flights from Baltimore to Portland (BWI-PDX)

Prices were available within the past 7 days and start at $94 for one-way flights and $188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Spirit Airlines
Spirit Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Spirit Airlines
United
Alaska Airlines
American Airlines

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Airport (PDX) cost?
Discover the latest flight deals from BWI to PDX by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BWI to PDX?
The cheapest flights from BWI to PDX 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. Airport (PDX)?
While Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) doesn’t have any direct flights to Portland Intl. Airport (PDX), other airports have nonstop options. Jetting off from Ronald Reagan Washington National Airport (DCA) will get you to Portland without any layovers.
What is the cheapest airline that flies from BWI to PDX?
With tickets starting at $240 for a one-way flight from BWI to PDX, Southwest Airlines is currently the cheapest airline on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BWI on July 4 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Airport (PDX)?
You’ll need to take a flight with a layover when traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Airport (PDX). Direct flights don’t operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from BWI to PDX?
Usually you’ll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Airport (PDX)?
Opt for a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Airport (PDX) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this 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.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Portland Intl. Airport (PDX) last-minute?
Waiting until just before your trip to book a flight from BWI to PDX generally means paying more. While you may come across some last-minute deals, there’s no guarantee. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book a BWI to PDX flight and hotel package?
Securing a BWI to PDX flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our extensive range of stays and then add flights, activities and car rentals 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. Airport (PDX)?
If you reserved your BWI to PDX flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.
*Available to One Key members.