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Cheap Flights from Washington D.C. to Ottawa International

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Compare Washington D.C. to Ottawa International flight deals

Find the cheapest month or even day of the year to fly to Ottawa International

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Flight deals from Washington D.C. to Ottawa International

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Ottawa International? Find the lowest prices on one-way and return tickets right here.
Ottawa.£104 per passenger.Departing Sat, 5 Jul.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Sat, 5 Jul, arriving in Ottawa International.Price includes taxes and charges.From £104, select.
Ottawa.£104 per passenger.Departing Tue, 19 Aug.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Tue, 19 Aug, arriving in Ottawa International.Price includes taxes and charges.From £104, select.
Ottawa.£114 per passenger.Departing Sat, 14 Jun.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Sat, 14 Jun, arriving in Ottawa International.Price includes taxes and charges.From £114, select.
Ottawa.£115 per passenger.Departing Thu, 22 May.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Thu, 22 May, arriving in Ottawa International.Price includes taxes and charges.From £115, select.
Ottawa.£118 per passenger.Departing Sat, 7 Jun.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Washington Dulles on Sat, 7 Jun, arriving in Ottawa International.Price includes taxes and charges.From £118, select.
Ottawa.£123 per passenger.Departing Sat, 2 Aug.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Washington Ronald Reagan on Sat, 2 Aug, arriving in Ottawa International.Price includes taxes and charges.From £123, select.
Ottawa.£127 per passenger.Departing Thu, 4 Sep.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Thu, 4 Sep, arriving in Ottawa International.Price includes taxes and charges.From £127, select.
Ottawa.£129 per passenger.Departing Wed, 2 Jul.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Washington Ronald Reagan on Wed, 2 Jul, arriving in Ottawa International.Price includes taxes and charges.From £129, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Ottawa International flights are currently cheapest in July.
May
from £114
Jun
from £113
Jul
from £104
Aug
from £104
Sep
from £126
Oct
from £173
Nov
Find prices
Dec
from £210
Jan
from £218
Feb
Find prices
Mar
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Apr
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Direct flights from Washington D.C. to Ottawa International

Washington D.C. to Ottawa International: Alternative routes

Compare routes from Washington D.C. to Ottawa below. You may find an airport to fly into that's cheaper, faster, or easier than Ottawa International.

Washington D.C. to Ottawa: Flight information

The things to know before you go.
Cheapest flight found£104
Cheapest month to flyAugust
Average flight time1 hr, 37 mins
Most popular airlineUnited
Average flights per week85

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

The best price we found for a return flight from Washington D.C. to Ottawa International is £146. 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 37 minutes is the average flight time from Washington D.C. to Ottawa International.
United, Air Canada and GoJet Airlines fly direct from Washington D.C. to Ottawa International.
As of May 2025, there are 85 flights per week flying from Washington D.C. to Ottawa International.
The cheapest month to fly from Washington D.C. to Ottawa International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Ottawa International Airport on Tuesday, 27 May 2025.
Yes – the average flight time is 1 hour and 37 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 Ottawa International 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 Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Ottawa International is Air Canada .

How to find cheap flights to Ottawa International from Washington D.C.

Looking for cheap tickets from Washington D.C. to Ottawa International? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Washington D.C. to Ottawa International. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Ottawa International from Washington D.C. from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best Washington D.C.-Ottawa International ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Ottawa International from Washington D.C..
  • Set up a Price Alert. You can easily track the fare of your cheap Washington D.C.-Ottawa International flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Washington D.C. and Ottawa International? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from Washington D.C. and Ottawa International. We scour the internet for the best Business, Premium Economy and First Class flight fares to Ottawa International, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Washington D.C. to Ottawa International flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

    • Combine your flight to Ottawa International from Washington D.C. with hotels and car hire

    Once you've secured your cheap flight ticket from Washington D.C. to Ottawa International, discover the best prices and exclusive rates for hotels in Ottawa International or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


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

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