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188 € Cheap Flights from Portland to Baltimore Washington International

Compare Portland to Baltimore Washington International flight deals

Find the cheapest month or even day of the year to fly to Baltimore Washington International

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Flight deals from Portland to Baltimore Washington International

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Baltimore Washington International Airport? If you want to travel next month, return fares start from 188 €. Find the lowest prices on one-way and return tickets right here.
Washington D.C..188 € per passenger.Departing Sat, 5 Sep, returning Sun, 6 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Sat, 5 Sep, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sun, 6 Sep, arriving in Portland.Price includes taxes and charges.From 188 €, select.
Washington D.C..188 € per passenger.Departing Thu, 20 Aug, returning Mon, 24 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Thu, 20 Aug, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Mon, 24 Aug, arriving in Portland.Price includes taxes and charges.From 188 €, select.
Washington D.C..190 € per passenger.Departing Tue, 1 Dec, returning Tue, 8 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Tue, 1 Dec, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Tue, 8 Dec, arriving in Portland.Price includes taxes and charges.From 190 €, select.
Washington D.C..190 € per passenger.Departing Thu, 19 Nov, returning Thu, 26 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Thu, 19 Nov, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 26 Nov, arriving in Portland.Price includes taxes and charges.From 190 €, select.
Washington D.C..191 € per passenger.Departing Sat, 3 Oct, returning Mon, 5 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Sat, 3 Oct, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Mon, 5 Oct, arriving in Portland.Price includes taxes and charges.From 191 €, select.
Washington D.C..191 € per passenger.Departing Wed, 26 Aug, returning Tue, 1 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Wed, 26 Aug, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Tue, 1 Sep, arriving in Portland.Price includes taxes and charges.From 191 €, select.
Washington D.C..200 € per passenger.Departing Thu, 26 Nov, returning Thu, 3 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Thu, 26 Nov, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 3 Dec, arriving in Portland.Price includes taxes and charges.From 200 €, select.
Washington D.C..272 € per passenger.Departing Fri, 30 Oct, returning Sun, 1 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Fri, 30 Oct, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sun, 1 Nov, arriving in Portland.Price includes taxes and charges.From 272 €, select.
Washington D.C..486 € per passenger.Departing Fri, 8 Jan, returning Mon, 11 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Fri, 8 Jan, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Mon, 11 Jan, arriving in Portland.Price includes taxes and charges.From 486 €, select.

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 August.
Aug
from 188 €
Sep
from 188 €
Oct
from 191 €
Nov
from 190 €
Dec
from 190 €
Jan
from 486 €
Feb
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Mar
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Apr
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May
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Jun
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Jul
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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.

Washington Ronald Reagan

5km from central Washington D.C.
Closest
from 205 €
Search flights

Washington Dulles

37km from central Washington D.C.
Cheapest
from 188 €
Search flights

Baltimore Washington International

44km from central Washington D.C.
Cheapest
from 188 €
Search flights

Portland to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found188 €
Cheapest month to flySeptember
Average flight time1 hr, 44 mins
Most popular airlineSouthwest Airlines
Average flights per week29

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

The best price we found for a return flight from Portland to Baltimore Washington International is 188 €. 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.
As of August 2026, there are 29 flights per week flying from Portland to Baltimore Washington International.
The cheapest month to fly from Portland to Baltimore Washington International is usually September.
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 Saturday, 5 September 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, Southwest Airlines offers the cheapest flight tickets to Baltimore Washington International.

Travelling from Portland Airport (PWM) to Baltimore Washington International Airport (BWI): what you need to know

  • Around 1 hour 40 minutes is how long you can expect to be in the air on a direct flight from Portland Airport to Baltimore Washington International Airport.

  • Portland and Washington DC are in the same timezone, UTC-5.

  • Choose from 16 weekly Portland Airport to Baltimore Washington International Airport flights. The 05:20 departure with Southwest Airlines is the earliest you can take. Southwest Airlines operates the latest service of the day at 17:50.

  • Your PWM to BWI flight won't wait if you're running late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Heading off during a peak time like public or school holidays? Expect longer lines at check-in and security. For peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • Southwest Airlines offers direct flights from Portland Airport to Baltimore Washington International Airport. Book with this popular carrier, then get ready to tick off the sights in Washington DC — and maybe even more of the United States if your schedule allows.

  • Southwest Airlines is the airline most travellers choose for this route.

  • With an impressive 80.56% of services arriving as scheduled, Southwest Airlines is the most punctual carrier offering PWM to BWI flights.

  • We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Portland Airport to Baltimore Washington International Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to visit your chosen city. Some great stopovers between PWM and BWI include:

    • Charlotte Douglas Airport

    • Pittsburgh International Airport

    • Islip Airport

How to find the cheapest flights from Portland Airport (PWM) to Baltimore Washington International Airport (BWI)

  • At the moment, 94 € is the cheapest price we've found for a one-way Portland Airport to Baltimore Washington International Airport flight. The best price for a return ticket is 188 €. Remember that fares could change due to availability when booking.

  • Score cheap tickets from PWM to BWI by booking three months ahead. According to our research, that's the sweet spot for finding a bargain.

  • The cheapest month for flights from Portland Airport to Baltimore Washington International Airport is August. Use the 'Whole month' tool to see the lowest airfares if you have flexible travel dates.

  • Getting your hands on cheap flights from PWM to BWI is a cinch with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when a new discounted fare appears.

  • Discover the ideal flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Portland Airport to Baltimore Washington International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Portland Airport (PWM)

  • The address for PWM is 1001 Westbrook Street.

  • Of the flights that depart from Portland Airport, 79% arrive on time at their destination.

  • Central Portland to Portland Airport is approximately 8 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're ride-sharing, catching a taxi or driving.

  • The journey when using public transport typically takes 30 minutes.

  • Booked an early flight from Portland Airport to Baltimore Washington International Airport? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by picking one of these hotels near PWM:

Arriving at Baltimore Washington International Airport (BWI)

Getting from Baltimore Washington International Airport (BWI) to central Washington DC

  • Baltimore Washington International Airport to central Washington DC has a drive time of about 40 minutes. It's approximately 48 kilometres away.

  • When travelling by public transport, expect a journey time of about 50 minutes.

When to fly to Baltimore Washington International Airport (BWI)

  • The quietest month for a flight from Portland Airport to Baltimore Washington International Airport is March, while July is the busiest. Choose the ideal time to go to Washington DC based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Washington DC is July, with the temperature ranging between 19ºC (66ºF) and 33ºC (91ºF). Book your flights from Portland Airport to Baltimore Washington International Airport in this month if this is the type of weather you like.

  • January sees average temperatures of between -6ºC (21ºF) and 10ºC (50ºF). Search for cheap tickets from PWM to BWI sometime then if you want to travel in cooler conditions.

Explore more of the United States

  • You've seen Washington DC, now it's time to discover other parts of the United States. Journey around 322 kilometres north-east to New York to tick off its must-visit sights. From Central Park to Statue of Liberty and Metropolitan Museum of Art, there's plenty to keep you busy.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another favourite stop in the United States. No visit is complete without checking out Independence Hall, Liberty Bell and Philadelphia Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.