$169 Flights from Portland (PWM) to Baltimore Washington International (BWI)

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Flight deals from Portland to Baltimore Washington International

Looking for a cheap last-minute deal or the best round-trip flight from Portland to Baltimore Washington International? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Portland to Baltimore Washington International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Baltimore Washington International flights are currently cheapest in July.

Direct flights from Portland to Baltimore Washington International

Portland to Baltimore Washington International: Alternative routes

Compare routes from Portland to Washington, D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Baltimore Washington International.

Portland to Washington, D.C.: Flight information

The things to know before you go.
Cheapest flight found$169
Cheapest month to flyJuly
Average flight time1 hr, 44 mins
Most popular airlineSouthwest Airlines
Average flights per week25

Finding cheap flights from Portland to Baltimore Washington International: Frequently asked questions

The best price we found for a round-trip flight from Portland to Baltimore Washington International is $247. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 44 minutes is the average flight time from Portland to Baltimore Washington International.
Southwest Airlines flies direct from Portland to Baltimore Washington International.
There are 29 flights per week flying from Portland to Baltimore Washington International, as of December 2025.
The cheapest month to fly from Portland to Baltimore Washington International is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Baltimore Washington International Airport on Friday, January 9, 2026.
Yes – the average flight time is 1 hour and 44 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Baltimore Washington International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Washington, D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Breeze Airways and Southwest Airlines offer the cheapest flight tickets to Baltimore Washington International.

Flying from Portland International Jetport Airport (PWM) to Baltimore/Wash International Thurgood Marshall Airport (BWI): what you need to know

  • The average length of a direct flight from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport is 1 hour 40 minutes.

  • Portland and Washington DC are in the same timezone, UTC-4.

  • Each week, there are 21 Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport flights. If you'd like to get going as early as possible, opt for the 05:25 Southwest Airlines flight. If you'd rather make the most of your day before you fly, the latest flight is at 19:20 with Southwest Airlines.

  • Leave plenty of time to make your PWM to BWI flight. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • You can expect longer queues in popular months such as August. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a smart move.

  • Southwest Airlines is your gateway to exploring Washington DC (and perhaps some other great corners of United States!). Browse the direct flights from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport offered by this popular carrier.

  • The airline that serves the most passengers on this route is Southwest Airlines.

  • With a reliable 80.29% of services landing on schedule, Southwest Airlines is the most punctual carrier operating PWM to BWI flights.

  • Think about adding a stopover when booking your ticket from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport. Simply deselect 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Here are some options between PWM and BWI:

    • Long Island MacArthur Airport

    • Pittsburgh International Airport

    • Charlotte Douglas International Airport

How to find the cheapest flights from Portland International Jetport Airport (PWM) to Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Currently, $169 is the lowest price we've seen for a one-way Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport flight. The best price for a return ticket is $247. Bear in mind that fares may change due to demand at the time of booking.

  • Book nine months before flying. After looking at the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from PWM to BWI.

  • August is the cheapest month for flights from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport. If you need to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • There's no need to check back in every day to see if fares have dropped when you create a Price Alert. We'll let you know as soon as a special offer becomes available on cheap flights from PWM to BWI.

  • Tailor your flights with filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport.

Handy information about Portland International Jetport Airport (PWM)

  • You'll find PWM at 1001 Westbrook Street.

  • 82.15% of flights leaving Portland International Jetport Airport touch down at their destination on schedule. With its strong on-time performance, you're unlikely to experience delays when taking off from PWM.

  • To get to Portland International Jetport Airport from central Portland, it'll take around 15 minutes if you're going by car. Of course, this depends on traffic. It's approximately 5 miles from the airport to the city center.

  • Expect a journey time of around 40 minutes when using public transport.

  • Have an early flight from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by picking one of these stays close to PWM:

Arriving at Baltimore/Wash International Thurgood Marshall Airport (BWI)

Getting from Baltimore/Wash International Thurgood Marshall Airport (BWI) to central Washington DC

  • Baltimore/Wash International Thurgood Marshall Airport to central Washington DC has a drive time of about 50 minutes. It's approximately 30 miles away.

  • Traveling on public transport will take you roughly 1 hour 30 minutes.

When to fly to Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • It's time to pick your travel dates for your flight from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport. July is the busiest month to head to Washington DC. If you like a more laid-back vibe, go in May.

  • Lock in your flight from Portland International Jetport Airport to Baltimore/Wash International Thurgood Marshall Airport for July if you want to go to Washington DC during its warmest month. You can expect temperatures of between 66ºF and 91ºF.

  • If you like traveling in cooler conditions, look for a cheap ticket from PWM to BWI in January. Average temperatures are between 21ºF and 50ºF then.

Explore more of United States

  • New York is just one of the many cities in United States waiting to be explored after you've seen Washington DC. Around 200 miles away to the north-east, check out popular attractions including Statue of Liberty, Central Park and Empire State Building.

  • If you're ready to explore another major stop in United States, consider Philadelphia, roughly 120 miles north-east of Washington DC. Liberty Bell, Independence Hall and Philadelphia Museum of Art are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.