Skyscanner home

Cheap Flights from Ottawa to Washington D.C.

Compare Ottawa to Washington D.C. flight deals

Find the cheapest month or even day of the year to fly to Washington D.C.

Book the best Washington D.C. fare with no extra fees

Flight deals from Ottawa to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from Ottawa to Washington D.C.? Find the lowest prices on one-way and return tickets right here.
Washington D.C..R 2,557 per passenger.Departing Fri, 5 Jun.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Fri, 5 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From R 2,557, select.
Washington D.C..R 2,649 per passenger.Departing Thu, 7 May.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Thu, 7 May, arriving in Washington Dulles.Price includes taxes and charges.From R 2,649, select.
Washington D.C..R 2,656 per passenger.Departing Sat, 4 Apr.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Sat, 4 Apr, arriving in Washington Dulles.Price includes taxes and charges.From R 2,656, select.
Washington D.C..R 2,753 per passenger.Departing Wed, 11 Mar.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Wed, 11 Mar, arriving in Washington Dulles.Price includes taxes and charges.From R 2,753, select.
Washington D.C..R 2,951 per passenger.Departing Tue, 14 Jul.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Tue, 14 Jul, arriving in Washington Dulles.Price includes taxes and charges.From R 2,951, select.
Washington D.C..R 2,956 per passenger.Departing Mon, 7 Sep.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Mon, 7 Sep, arriving in Washington Dulles.Price includes taxes and charges.From R 2,956, select.
Washington D.C..R 2,999 per passenger.Departing Mon, 11 May.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Ottawa International on Mon, 11 May, arriving in Washington Ronald Reagan.Price includes taxes and charges.From R 2,999, select.
Washington D.C..R 3,154 per passenger.Departing Thu, 9 Apr.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Ottawa International on Thu, 9 Apr, arriving in Washington Ronald Reagan.Price includes taxes and charges.From R 3,154, select.

Find the cheapest month to fly from Ottawa to Washington D.C.

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ottawa to Washington D.C. flights are currently cheapest in June.
Feb
from R 6,345
Mar
from R 2,753
Apr
from R 2,656
May
from R 2,649
Jun
from R 2,557
Jul
from R 2,951
Aug
from R 3,468
Sep
from R 2,956
Oct
from R 4,097
Nov
Find prices
Dec
Find prices
Jan
Find prices

Direct flights from Ottawa to Washington D.C.

Alternative Ottawa to Washington D.C. routes

Looking for the cheapest, fastest or easiest route from Ottawa to Washington D.C.? You could fly into the following airports instead.

Washington Ronald Reagan

5km from central Washington D.C.
Closest
from R 2,999
Search flights

Camp Springs Andrews AFB

17km from central Washington D.C.
Search flights

Washington Dulles

37km from central Washington D.C.
Cheapest
from R 2,557
Search flights

Baltimore Washington International

44km from central Washington D.C.
Cheapest
from R 2,557
Search flights

Manassas

47km from central Washington D.C.
Search flights

Ottawa to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundR 2,557
Cheapest month to flyJune
Average flight time1 hr, 45 mins
Most popular airlineUnited
Average flights per week424

Finding cheap flights from Ottawa to Washington D.C.: Frequently asked questions

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.
The best price we found for a return flight from Ottawa to Washington D.C. is R 4,327. 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 Ottawa to Washington D.C..
United, Republic Airways and Air Canada fly direct from Ottawa to Washington D.C..
As of February 2026, there are 424 flights per week flying from Ottawa to Washington D.C..
The cheapest month to fly from Ottawa to Washington D.C. is usually April.
If you're flying from Ottawa, the cheapest airport near Washington D.C. is Washington Dulles – which is 36.5 km away from the centre of Washington D.C.. We've found flights into this airport from R 4,327.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa to Washington D.C. on Thursday, 9 April 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 Washington D.C. 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.
In February, the average temperature is usually around 1°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.
The cheapest airline that flies to Washington D.C. is Porter Airlines. And the cheapest airline that flies to Camp Springs Andrews AFB Airport is Air Canada.

Travelling from Ottawa to Washington DC: what you need to know

  • Planning your getaway starts with working out where you'll fly out of in Ottawa. Ottawa/Macdonald-Cartier International Airport (YOW) is the city's main airport, so check out your options for booking a flight from Ottawa to Washington DC jetting off from here.

  • When flying into Washington DC, hop off the plane at Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD). Baltimore/Wash International Thurgood Marshall Airport (BWI) is another way to get to this city.

  • The average duration of a direct Ottawa to Washington DC flight is 1 hour 40 minutes.

  • Allow plenty of time to make your Ottawa to Washington DC flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • If you're taking off during a major holiday or other peak period, allow extra time. A good general rule is two hours before domestic flights and up to four hours before international departures. Lines at check-in and security will be longer.

How to find the cheapest flights from Ottawa to Washington DC

  • At the moment, R 2,557 is the lowest price we've seen for a one-way ticket from Ottawa to Washington DC. The cheapest price for a return flight is R 4,327. Remember fares may change due to demand at the time of booking.

  • To secure cheap Ottawa to Washington DC flights, book your journey two months before your departure date.

  • The best month for picking up cheap plane tickets from Ottawa to Washington DC is May. Use the 'Whole month' tool to compare prices, then select the dates offering the lowest fares.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll notify you when a better deal is available on cheap flights from Ottawa to Washington DC.

  • Pick your preferred departure and arrival times, airlines and number of stops by using the filters. Or sort your Ottawa to Washington DC flight results by 'Cheapest,' 'Best' or 'Fastest.'

Flying from Ottawa

Ottawa/Macdonald-Cartier International Airport (YOW)

  • You can book a direct flight from Ottawa to Washington DC taking off from Ottawa/Macdonald-Cartier International Airport (YOW). Board your plane at YOW and then touch down at Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD).

  • Reserve your Ottawa to Washington DC plane tickets with United Airlines. This airline is a top pick for direct flights from YOW.

  • Located around 11 kilometres from central Ottawa, YOW can be reached in about 20 minutes by car, depending on traffic. The journey on public transport is roughly 45 minutes.

  • Need a handy hotel close to Ottawa/Macdonald-Cartier International Airport? If you've booked an early flight from Ottawa to Washington DC, these accommodation options will put you moments from check-in:

  • When it comes to Ottawa/Macdonald-Cartier International Airport's on-time performance, data shows 58.21% of flights stick to their scheduled arrival time.

  • YOW is located at 50 Airport Road.

Arriving in Washington DC

Ronald Reagan National Airport (DCA)

  • The distance from Ronald Reagan National Airport (DCA) to central Washington DC is approximately 5 kilometres. It'll take you about 15 minutes to get to the centre driving.

  • It usually takes 45 minutes to get there when travelling by public transport.

  • The last thing you need is a long journey to your hotel if you're getting in late on a flight from Ottawa to Washington DC. Check in to one of these accommodation options near DCA instead:

  • Travel at your own pace with a Ronald Reagan National Airport rental car. Pick up a set of wheels from Thrifty, Sixt or Dollar and discover more of Washington DC and beyond.

  • To get the lowest price, reserve your ride from Ronald Reagan National Airport about four weeks ahead of your Ottawa to Washington DC flight.

  • The address for DCA is 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • After your flight from Ottawa to Washington DC has arrived, you can make your way to the city centre in about 50 minutes by car. Central Washington DC is approximately 40 kilometres from Washington Dulles International Airport (IAD).

  • If you choose to travel on public transport, you'll get to the city centre in 1 hour 10 minutes or so.

  • There are some comfortable places ready to welcome you near IAD. Settle in and get cosy after your Ottawa to Washington DC flight at one of these perfectly located options:

  • Forget about public transport schedules or cab lines. Grab a Washington Dulles International Airport rental car and take your trip in whatever direction you choose. Check out the availability and rates from Dollar, Thrifty and Sixt.

  • Get the pick of the lot. Securing your ride from IAD one week ahead of time often means better deals and a wider selection of vehicles.

  • Washington Dulles International Airport can be found at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

Best time to go to Washington DC

  • It's time to figure out your dates for your flight from Ottawa to Washington DC. February is the busiest month for a trip to Washington DC. If you like a quieter vibe, go in May.

  • The warmest month in Washington DC is July, with temperatures ranging between 19ºC (66ºF) and 33ºC (91ºF). Lock in your Ottawa to Washington DC ticket then if you enjoy this type of weather.

  • Look for cheap flights from Ottawa to Washington DC in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

More about Washington DC

Explore more of United States

  • New York is just one of the many cities in United States waiting to be discovered once you've taken in the sights of Washington DC. Around 322 kilometres to the north-east, its top attractions include Statue of Liberty, Central Park and Empire State Building.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another favourite stop in United States. Experience this destination's highlights firsthand at Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Plan the rest of your trip from Ottawa to Washington D.C.

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