Cheap flights from Portland to Washington, D.C. from $142

If you’re not able to fly to Baltimore in September, then January is your next best option. Flight prices from Portland to Baltimore during January average around $335.

The cheapest day to depart from Portland to Baltimore is on a Wednesday. Travelers who choose to depart for Baltimore on a Wednesday will often find tickets for as low as $397. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $532. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

Flying to Baltimore from Portland in the morning is the least expensive time of day to depart. momondo users have found prices as low as $445 when looking at flights departing in the morning. Flights in the evening are often more expensive with an average ticket price of $466.

Fly from Portland to Baltimore/Washington for the best Portland - Baltimore/Washington flight prices

You are more likely to see cheaper flights to Baltimore from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Baltimore for around $401 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Baltimore from Portland for as low as $209 on momondo.

There are 4 cabin classes available to choose from on Portland to Baltimore flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 23% on your flight if you consider stops on a Portland to Baltimore flight.

As of August 2026, prices for Portland to Baltimore flights are approximately 93% more expensive when compared to flights at the same time last year.

Delta, United Airlines, and Southwest are the most popular carriers operating from Portland to Baltimore/Washington

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Baltimore from Portland according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Baltimore. Keep in mind that there are 6 different airlines that fly to Baltimore on a routine basis, so you have a few additional options to choose from.

Detroit (DTW) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Flights via Detroit (DTW) offer the lowest average round-trip price of $254.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 6h 21m.

Chicago (MDW) has the shortest average layover time for this route: 0h 53m.

The number of flights available between Portland and Baltimore is 1 per day as of August 2026. The most frequent departure time is 10:00PM, with 77% of daily flights leaving in the evening.

As of August 2026, 11 flights take off from Portland and land in Baltimore each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.