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Cheap Flights from Portland to Washington D.C. starting at S$ 151

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Portland to Washington D.C.

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Portland to Washington D.C.

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

United Airlines
From S$ 151
American Airlines
From S$ 182
Delta Air Lines
From S$ 183
Frontier Airlines
From S$ 282
Southwest Airlines
From S$ 299
Breeze Airways
From S$ 490
ANA airlines

Find more flights and airlines

Alternative Routes from Portland to Washington D.C.

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Portland to Washington D.C..

  • Cheapest
    United Airlines
    PWM
    05:30
    1h 58m
    Direct
    IAD
    07:28
    Portland International Jetport - Dulles International Airport
    Fri, May 31United Airlines
    S$ 151
  • United Airlines
    PWM
    06:05
    4h 23m
    1 transfer
    DCA
    10:28
    Portland International Jetport - Ronald Reagan Washington National Airport
    Fri, Apr 19United Airlines
    S$ 171
  • United Airlines
    PWM
    06:05
    4h 23m
    1 transfer
    DCA
    10:28
    Portland International Jetport - Ronald Reagan Washington National Airport
    Fri, Apr 19United Airlines
    S$ 171
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets from Portland (PWM) to Washington D.C. (WAS) the cheapest?

    Airlines adjust prices for flights from Portland to Washington D.C. based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much is a flight from Portland (PWM) to Washington D.C. (WAS) cost?

    According to Trip.com's data, the lowest price is around S$ 607.
  • How long is a flight from Portland (PWM) to Washington D.C. (WAS)?

    It takes about 1 hour 56 minutes to fly from Portland (PWM) to Washington D.C. (WAS).
  • What are the most popular airlines that fly from Portland (PWM) to Washington D.C. (WAS)?

    Airlines with flights from Portland (PWM) to Washington D.C. (WAS): American Airlines, United Airlines, Alaska Airlines, Avianca and Copa Airlines.
  • What's the most popular airline for direct flights from Portland (PWM) to Washington D.C. (WAS)?

    American Airlines operates 1 direct flights from Portland (PWM) to Washington D.C. (WAS).
  • How many airports in Washington D.C.?

    There are 2 airports near Washington D.C.: Ronald Reagan Washington National Airport and Dulles International Airport.

Find cheapest flight ticket from Portland to Washington D.C.

Cheapest direct flight price

S$ 150

Cheapest return ticket price

S$ 314

Cheapest month

March

Peak season for travel

September