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Cheap Flights from Ottawa to Washington D.C. starting at S$ 205

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 Ottawa 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 Ottawa to Washington D.C.

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

Porter Airlines
From S$ 205
United Airlines
From S$ 208
Air Canada
From S$ 245
Westjet
From S$ 267
Delta Air Lines
From S$ 356
ANA airlines

Find more flights and airlines

Alternative Routes from Ottawa to Washington D.C.

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

  • Cheapest
    Porter Airlines
    YOW
    11:30
    4h 22m
    1 transfer
    IAD
    15:52
    Ottawa Macdonald-Cartier International Airport - Dulles International Airport
    Fri, Apr 12Porter Airlines
    S$ 205
  • United Airlines
    YOW
    10:15
    1h 44m
    Direct
    DCA
    11:59
    Ottawa Macdonald-Cartier International Airport - Ronald Reagan Washington National Airport
    Tue, Apr 23United Airlines
    S$ 214
  • United Airlines
    YOW
    10:15
    1h 44m
    Direct
    DCA
    11:59
    Ottawa Macdonald-Cartier International Airport - Ronald Reagan Washington National Airport
    Tue, Apr 23United Airlines
    S$ 214
    Find More Flights

Frequently Asked Questions

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

    Airlines adjust prices for flights from Ottawa 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 Ottawa (YOW) to Washington D.C. (WAS) cost?

    According to Trip.com's data, the lowest price is around S$ 530.
  • How long is a flight from Ottawa (YOW) to Washington D.C. (WAS)?

    It takes about 1 hour 40 minutes to fly from Ottawa (YOW) to Washington D.C. (WAS).
  • What time does the earliest flight from Ottawa to Washington D.C. depart?

    The earliest flight departs from Ottawa (YOW) at 08:00 and arrives in Washington D.C. (DCA) at 09:36.
  • What are the most popular airlines that fly from Ottawa (YOW) to Washington D.C. (WAS)?

    Airlines with flights from Ottawa (YOW) to Washington D.C. (WAS): United Airlines, Air Canada and Avianca.
  • What's the most popular airline for direct flights from Ottawa (YOW) to Washington D.C. (WAS)?

    United Airlines operates 1 direct flights from Ottawa (YOW) 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 Ottawa to Washington D.C.

Cheapest direct flight price

S$ 205

Cheapest return ticket price

S$ 359

Cheapest month

December

Peak season for travel

September