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Cheap Flights from Washington Dulles to Ottawa International

Compare Washington Dulles to Ottawa International flight deals

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

Book the best Ottawa International fare with no extra fees

Flight deals from Washington Dulles to Ottawa International

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Ottawa International Airport? If you want to travel next month, return fares start from Rs77,448. Find the lowest prices on one-way and return tickets right here.
Ottawa.Rs39,511 per passenger.Departing Thu, 24 Sep.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Thu, 24 Sep, arriving in Ottawa International.Price includes taxes and charges.From Rs39,511, select.
Ottawa.Rs43,456 per passenger.Departing Mon, 24 Aug.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Mon, 24 Aug, arriving in Ottawa International.Price includes taxes and charges.From Rs43,456, select.
Ottawa.Rs43,683 per passenger.Departing Mon, 5 Oct.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Mon, 5 Oct, arriving in Ottawa International.Price includes taxes and charges.From Rs43,683, select.
Ottawa.Rs50,666 per passenger.Departing Sun, 22 Nov.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Sun, 22 Nov, arriving in Ottawa International.Price includes taxes and charges.From Rs50,666, select.
Ottawa.Rs50,714 per passenger.Departing Fri, 4 Dec.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Fri, 4 Dec, arriving in Ottawa International.Price includes taxes and charges.From Rs50,714, select.
Ottawa.Rs51,164 per passenger.Departing Sun, 4 Apr.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Sun, 4 Apr, arriving in Ottawa International.Price includes taxes and charges.From Rs51,164, select.
Ottawa.Rs53,569 per passenger.Departing Thu, 3 Sep.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Thu, 3 Sep, arriving in Ottawa International.Price includes taxes and charges.From Rs53,569, select.
Ottawa.Rs54,016 per passenger.Departing Thu, 15 Oct.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Thu, 15 Oct, arriving in Ottawa International.Price includes taxes and charges.From Rs54,016, select.
Ottawa.Rs55,174 per passenger.Departing Sat, 22 Aug.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Sat, 22 Aug, arriving in Ottawa International.Price includes taxes and charges.From Rs55,174, select.
Ottawa.Rs60,107 per passenger.Departing Fri, 26 Mar.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Fri, 26 Mar, arriving in Ottawa International.Price includes taxes and charges.From Rs60,107, select.
Ottawa.Rs61,386 per passenger.Departing Sat, 27 Feb.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Sat, 27 Feb, arriving in Ottawa International.Price includes taxes and charges.From Rs61,386, select.
Ottawa.Rs65,251 per passenger.Departing Sat, 27 Feb.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Sat, 27 Feb, arriving in Ottawa International.Price includes taxes and charges.From Rs65,251, select.
Ottawa.Rs65,401 per passenger.Departing Wed, 11 Nov.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Wed, 11 Nov, arriving in Ottawa International.Price includes taxes and charges.From Rs65,401, select.
Ottawa.Rs106,763 per passenger.Departing Fri, 26 Mar.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Fri, 26 Mar, arriving in Ottawa International.Price includes taxes and charges.From Rs106,763, select.

Find the cheapest month to fly from Washington Dulles to Ottawa International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Ottawa International flights are currently cheapest in September.
Aug
from Rs43,456
Sep
from Rs39,511
Oct
from Rs43,683
Nov
from Rs50,666
Dec
from Rs50,714
Jan
Find prices
Feb
from Rs61,386
Mar
from Rs60,107
Apr
from Rs51,164
May
Find prices
Jun
Find prices
Jul
Find prices

Direct flights from Washington Dulles to Ottawa International

Washington Dulles to Ottawa International: Alternative routes

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

Ottawa International

11km from central Ottawa
ClosestCheapest
from Rs39,511
Search flights

Ottawa Gatineau

15km from central Ottawa
Search flights

Washington D.C. to Ottawa: Flight information

The things to know before you go.
Cheapest flight foundRs39,511
Cheapest month to flySeptember
Average flight time1 hr, 44 mins
Most popular airlineUnited
Average flights per week72

Finding cheap flights from Washington Dulles to Ottawa International: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Ottawa International is Rs77,448. 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 Washington Dulles to Ottawa International.
United, Republic Airways and Air Canada fly direct from Washington Dulles to Ottawa International.
As of August 2026, there are 72 flights per week flying from Washington Dulles to Ottawa International.
The cheapest month to fly from Washington Dulles to Ottawa International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Ottawa International Airport on Friday, 4 September 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 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.

Flying from Washington Dulles Airport (IAD) to Ottawa International Airport (YOW): what you need to know

  • Book a direct flight from Washington Dulles Airport to Ottawa International Airport and you'll be in the air for an average of 1 hour 40 minutes.

  • Washington DC and Ottawa follow the same timezone, UTC-5.

  • Each week, there are 25 Washington Dulles Airport to Ottawa International Airport flights. To take off as soon as possible, go for the 08:17 United Airlines flight. If you'd rather make the most of your time before flying, the latest flight is at 22:15 with United Airlines.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably board your IAD to YOW flight.

  • Flying during a peak time such as July? Major public holidays and other high seasons can result in longer queues and delays at check-in and security. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • United offers direct flights from Washington Dulles Airport to Ottawa International Airport. Book with this popular carrier, then get ready to see the sights in Ottawa — and maybe even more of Canada if you have time.

  • United is the airline most travellers choose for this route.

  • The most punctual carrier that offers IAD to YOW flights is United. Its services land as planned 67.04% of the time.

  • Consider adding a stopover when booking your ticket from Washington Dulles Airport to Ottawa International Airport. Simply uncheck 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here are some options between IAD and YOW:

    • New York Newark Airport

    • Toronto Pearson International Airport

    • Montreal Pierre Elliott Trudeau Airport

How to find the cheapest flights from Washington Dulles Airport (IAD) to Ottawa International Airport (YOW)

  • Rs39,511 is currently the lowest price for a one-way Washington Dulles Airport to Ottawa International Airport flight. A return flight starts from Rs77,448. These prices may change depending on availability and demand.

  • To find cheap tickets from IAD to YOW, book ahead. Airlines usually offer their best fares when flights are first released.

  • The cheapest month for flights from Washington Dulles Airport to Ottawa International Airport is May. Use the 'Whole month' tool to find the lowest prices if you have a flexible schedule.

  • There's no need to check back in every day to see if fares have dropped when you set up a Price Alert. We'll update you as soon as there's a better deal on cheap flights from IAD to YOW.

  • Find the perfect flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Washington Dulles Airport to Ottawa International Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and number of stops.

Handy information about Washington Dulles Airport (IAD)

  • IAD is located at 1 Saarinen Circle.

  • Of the departures from Washington Dulles Airport, 77% land on time at their destination.

  • Washington Dulles Airport is around 40 kilometres from central Washington DC. If you're ride-sharing, catching a taxi or driving from the centre, it'll take you 45 minutes or so to get there, depending on the traffic.

  • Taking public transport? Expect a journey time of around 1 hour 10 minutes.

  • Need a convenient hotel near IAD? If you're catching an early flight from Washington Dulles Airport to Ottawa International Airport, these stays will have you moments from your departure lounge:

Arriving at Ottawa International Airport (YOW)

Getting from Ottawa International Airport (YOW) to central Ottawa

  • The address for YOW is 50 Airport Road.

  • From Ottawa International Airport, Ottawa is approximately 14 kilometres away. It takes around 20 minutes to reach the centre by car.

  • When travelling by public transport, expect a journey time of around 35 minutes.

When to fly to Ottawa International Airport (YOW)

  • July is the busiest month for flights from Washington Dulles Airport to Ottawa International Airport. To steer clear of the crowds, travel to Ottawa in November.

  • Book your flight from Washington Dulles Airport to Ottawa International Airport for July if you want to visit Ottawa during its warmest month. Expect temperatures of between 14ºC and 28ºC.

  • Search for cheap tickets from IAD to YOW in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -19ºC and -2ºC on average.

Explore more of Canada

  • You've visited Ottawa, now it's time to explore other corners of Canada. Travel about 354 kilometres south-west to Toronto to tick off its popular sights. From CN Tower to The Top CN Tower and Royal Ontario Museum, there's plenty to keep you busy.

  • If there's time to check out another major destination in Canada, head for Montreal, roughly 153 kilometres east of Ottawa. Cirque du Soleil - KURIOS, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal are among its highlights.

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 12 days.