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Cheap Flights from Ottawa to Washington D.C.

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Compare Ottawa International to Washington D.C. flight deals

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

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Flight deals from Ottawa International to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from Ottawa International to Washington D.C.? Find the lowest prices on one-way and return tickets right here.
Washington D.C..$434 per passenger.Departing Tue, 8 Apr, returning Wed, 9 Apr.Return flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Ottawa International on Tue, 8 Apr, arriving in Washington Dulles.Inbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Wed, 9 Apr, arriving in Ottawa International.Price includes taxes and charges.From $434, select.
Washington D.C..$434 per passenger.Departing Wed, 26 Mar, returning Tue, 8 Apr.Return flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Ottawa International on Wed, 26 Mar, arriving in Washington Dulles.Inbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Tue, 8 Apr, arriving in Ottawa International.Price includes taxes and charges.From $434, select.
Washington D.C..$452 per passenger.Departing Tue, 25 Mar, returning Wed, 26 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Ottawa International on Tue, 25 Mar, arriving in Washington Ronald Reagan.Inbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Wed, 26 Mar, arriving in Ottawa International.Price includes taxes and charges.From $452, select.
Washington D.C..$452 per passenger.Departing Tue, 1 Apr, returning Tue, 15 Apr.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Ottawa International on Tue, 1 Apr, arriving in Washington Ronald Reagan.Inbound direct flight with Air Canada departs from Washington Ronald Reagan on Tue, 15 Apr, arriving in Ottawa International.Price includes taxes and charges.From $452, select.
Washington D.C..$486 per passenger.Departing Sun, 30 Mar, returning Sun, 6 Apr.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Ottawa International on Sun, 30 Mar, arriving in Washington Dulles.Inbound direct flight with Air Canada departs from Washington Dulles on Sun, 6 Apr, arriving in Ottawa International.Price includes taxes and charges.From $486, select.
Washington D.C..$487 per passenger.Departing Thu, 27 Mar, returning Mon, 31 Mar.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Ottawa International on Thu, 27 Mar, arriving in Washington Ronald Reagan.Inbound direct flight with Air Canada departs from Washington Ronald Reagan on Mon, 31 Mar, arriving in Ottawa International.Price includes taxes and charges.From $487, select.
Washington D.C..$513 per passenger.Departing Thu, 19 Jun, returning Sun, 22 Jun.Return flight with United.Outbound direct flight with United departs from Ottawa International on Thu, 19 Jun, arriving in Washington Ronald Reagan.Inbound direct flight with United departs from Washington Ronald Reagan on Sun, 22 Jun, arriving in Ottawa International.Price includes taxes and charges.From $513, select.
Washington D.C..$560 per passenger.Departing Wed, 30 Apr, returning Mon, 12 May.Return flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Ottawa International on Wed, 30 Apr, arriving in Washington Dulles.Inbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Mon, 12 May, arriving in Ottawa International.Price includes taxes and charges.From $560, select.

Find the cheapest month to fly from Ottawa International 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 International to Washington D.C. flights are currently cheapest in April.
Mar
from $452
Apr
from $434
May
from $561
Jun
from $513
Jul
from $779
Aug
from $919
Sep
from $768
Oct
from $781
Nov
Find prices
Dec
Find prices
Jan
from $779
Feb
Find prices

Direct flights from Ottawa International to Washington D.C.

Alternative Ottawa International to Washington D.C. routes

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

Ottawa to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$432
Cheapest month to flyApril
Average flight time1 hr, 43 mins
Most popular airlineUnited
Average flights per week74

Finding cheap flights from Ottawa International 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 International to Washington D.C. is $432. 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 43 minutes is the average flight time from Ottawa International to Washington D.C..
United, GoJet Airlines and Air Canada fly direct from Ottawa International to Washington D.C..
As of March 2025, there are 74 flights per week flying from Ottawa International to Washington D.C..
The cheapest month to fly from Ottawa International to Washington D.C. is usually March 2025.
If you're flying from Ottawa International Airport, 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 $432.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ottawa International Airport to Washington D.C. on Tuesday, 8 April 2025.
Yes – the average flight time is 1 hour and 43 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 March, the average temperature is usually around 6°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.
Currently, Porter Airlines (Canada) Ltd and Air Canada offer the cheapest flight tickets to Washington D.C..

Flying from Ottawa/Macdonald-Cartier International Airport (YOW) to Washington DC: what you need to know

  • Expect to be in the air for 1 hour 36 minutes. On average, that's the time it takes for a direct flight from Ottawa/Macdonald-Cartier International Airport to Washington DC.

  • Washington DC's timezone is UTC-4, which is the same as Ottawa (the location of Ottawa/Macdonald-Cartier International Airport).

  • The most popular route is from Ottawa/Macdonald-Cartier International Airport (YOW) to Washington Dulles International Airport (IAD). You can select from 29 weekly services between these two airports. If you'd like to get on your way as soon as possible, the earliest flight from YOW to IAD is the 09:45 United service. If you'd rather travel later, the last departure is at 19:32 with United.

  • To ensure you get on your flight from YOW to Washington DC, leave plenty of time for things like check-in and baggage drop. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.

  • During popular months like August, it's a good idea to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead for an international flight when you travel during a peak period in general.

  • Nonstop flights from Ottawa/Macdonald-Cartier International Airport (YOW) to Washington DC are available for booking. Ronald Reagan National Airport (DCA) is where you'll complete your journey.

  • United is a well-known carrier that offers direct flights from Ottawa/Macdonald-Cartier International Airport to Washington DC.

  • If you hold a passport from Canada and want to travel to United States for tourism purposes, you won't need a visa. However, entry and visa requirements may differ based on the length of your trip and are subject to change. For the most up-to-date information, check with your destination's nearest embassy or consulate before booking a cheap ticket from Ottawa/Macdonald-Cartier International Airport to Washington DC.

  • YOW is about 13 kilometres from central Ottawa. If you're driving, catching a cab or ride-sharing from the centre, it'll take 19 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the journey time to be approximately 43 minutes.

  • Want a convenient hotel near YOW? If you're catching an early flight from Ottawa/Macdonald-Cartier International Airport to Washington DC, these stays will have you sleeping moments from your check-in counter:

How to find the cheapest flights from Ottawa/Macdonald-Cartier International Airport (YOW) to Washington DC

  • $246 is the cheapest price we've seen for a one-way ticket from Ottawa/Macdonald-Cartier International Airport to Washington DC. For a return flight on this route, the best price is $432. Depending on the availability when you book, these fares can change.

  • To secure cheap tickets from YOW to Washington DC, book your trip 9 months ahead of your departure date.

  • The cheapest month for tickets from Ottawa/Macdonald-Cartier International Airport to Washington DC is May. Compare prices using the 'Whole month' tool to find the cheapest day to fly.

  • Set up a Price Alert for flight tickets from YOW to Washington DC. You don't need to look every day to find out if prices have fallen. We'll let you know as soon as there's a change in price.

  • Tailor your travel plans with filters. Pick your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Ottawa/Macdonald-Cartier International Airport to Washington DC.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) to central Washington DC takes around 16 minutes by car. It's approximately 8 kilometres away.

  • If you're using public transport, expect a journey time of about 43 minutes.

  • Consider staying in a hotel near DCA if you're catching a late flight from Ottawa/Macdonald-Cartier International Airport to Washington DC. Select one of these accommodation options and skip the long transfer:

Washington Dulles International Airport (IAD)

  • After your flight from Ottawa/Macdonald-Cartier International Airport to Washington DC has hit the runway, you can make your way to the city centre in around 51 minutes by car. Central Washington DC is approximately 56 kilometres from Washington Dulles International Airport (IAD).

  • You can also travel using public transport, which typically takes 3 hours and 26 minutes.

  • After your flight from YOW to Washington DC, settle in at a hotel close to IAD. These are some comfortable options that'll help you sink into relaxation mode:

Best time to go to Washington DC

  • It's time to plan your dates for your flight from Ottawa/Macdonald-Cartier International Airport to Washington DC. July is the most popular month to visit Washington DC. If you prefer a more relaxed vibe, go in May.

  • When booking your flight from Ottawa/Macdonald-Cartier International Airport to Washington DC, think about the kind of weather you enjoy. July is the warmest month in Washington DC, with the temperature ranging from 19ºC to 33ºC.

  • For cooler conditions, look for a cheap flight from YOW to Washington DC in January when temperatures average between -6ºC and 10ºC.

More about Washington DC

  • After booking your flight from Ottawa/Macdonald-Cartier International Airport to Washington DC, think about where to rest your head in this city. Make one of these options your base for exploring Washington DC:

  • Every great journey has to include some sightseeing. White House Historical Association, The White House and National Mall are must-do's during your Washington DC adventure.

Complete your Washington DC trip with a car rental

  • Finding you a cheap flight from Ottawa/Macdonald-Cartier International Airport to Washington DC isn't the only thing we're good at. Check out our car rentals in Washington DC and have more freedom to explore. We find deals from trusted car rental providers and put them all in one place. Instantly compare offers and then book with no fees.

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.