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229 € Cheap Flights from Washington D.C. to Ottawa

Compare Washington D.C. to Ottawa flight deals

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Flight deals from Washington D.C. to Ottawa

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Ottawa? Find the lowest prices on one-way and return tickets right here.
Ottawa.229 € per passenger.Departing Thu, 11 Sep, returning Mon, 15 Sep.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Thu, 11 Sep, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Mon, 15 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 229 €, select.
Ottawa.245 € per passenger.Departing Sun, 30 Nov, returning Tue, 9 Dec.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Sun, 30 Nov, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Tue, 9 Dec, arriving in Washington Dulles.Price includes taxes and charges.From 245 €, select.
Ottawa.256 € per passenger.Departing Fri, 8 Aug, returning Tue, 19 Aug.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Fri, 8 Aug, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Tue, 19 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 256 €, select.
Ottawa.257 € per passenger.Departing Sun, 27 Jul, returning Fri, 1 Aug.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Sun, 27 Jul, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Fri, 1 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 257 €, select.
Ottawa.260 € per passenger.Departing Sat, 30 Aug, returning Sat, 13 Sep.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Sat, 30 Aug, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Sat, 13 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 260 €, select.
Ottawa.265 € per passenger.Departing Tue, 4 Nov, returning Thu, 6 Nov.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Tue, 4 Nov, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Thu, 6 Nov, arriving in Washington Dulles.Price includes taxes and charges.From 265 €, select.
Ottawa.289 € per passenger.Departing Thu, 11 Sep, returning Mon, 15 Sep.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Washington Ronald Reagan on Thu, 11 Sep, arriving in Ottawa International.Inbound direct flight with Air Canada departs from Ottawa International on Mon, 15 Sep, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 289 €, select.
Ottawa.296 € per passenger.Departing Tue, 30 Sep, returning Thu, 16 Oct.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Tue, 30 Sep, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Thu, 16 Oct, arriving in Washington Dulles.Price includes taxes and charges.From 296 €, select.

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

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 flights are currently cheapest in September.
Jul
from 410 €
Aug
from 256 €
Sep
from 229 €
Oct
from 311 €
Nov
from 265 €
Dec
from 340 €
Jan
from 351 €
Feb
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Mar
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Apr
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May
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Jun
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Direct flights from Washington D.C. to Ottawa

Alternative Washington D.C. to Ottawa routes

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

Washington D.C. to Ottawa: Flight information

The things to know before you go.
Cheapest flight found229 €
Cheapest month to flySeptember
Average flight time1 hr, 37 mins
Most popular airlineUnited
Average flights per week80

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

There are 2 airports in Ottawa: Ottawa International and Ottawa Gatineau.
The best price we found for a return flight from Washington D.C. to Ottawa is 229 €. 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 36 minutes is the average flight time from Washington D.C. to Ottawa.
United, Air Canada and GoJet Airlines fly direct from Washington D.C. to Ottawa.
As of July 2025, there are 80 flights per week flying from Washington D.C. to Ottawa.
The cheapest month to fly from Washington D.C. to Ottawa is usually September.
If you're flying from Washington D.C., the cheapest airport near Ottawa is Ottawa International – which is 11.2 km away from the centre of Ottawa. We've found flights into this airport from 229 €.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Ottawa on Thursday, 11 September 2025.
Yes – the average flight time is 1 hour and 36 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 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.
In July, the average temperature is usually around 20°C. July is typically the warmest month in Ottawa, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -16°C. The rainiest month is June.
The cheapest airline that flies to Ottawa is Porter Airlines. And the cheapest airline that flies to Ottawa Gatineau Airport is Air Canada.

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

  • Organising your flight from Washington DC to Ottawa begins with finding the right airport to kick off your trip. Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) and Baltimore/Wash International Thurgood Marshall Airport (BWI) are the main terminals in Washington DC.

  • Ottawa/Macdonald-Cartier International Airport (YOW) is the primary arrival point in Ottawa.

  • Hop on a direct Washington DC to Ottawa flight and you'll be in transit for an average of 1 hour 35 minutes.

  • Washington DC and Ottawa are both in the UTC-4 timezone. That means you won't need to account for any time differences.

  • The most popular route for flights from Washington DC to Ottawa is from Ronald Reagan National Airport (DCA) to Ottawa/Macdonald-Cartier International Airport (YOW). Take your pick of seven weekly services between these two airports. If you'd like to take off at the first opportunity, the earliest flight from DCA to YOW is the 12:55 Air Canada option. If you have other commitments or plans on your day of travel, the latest available service is at 12:55 with Air Canada.

  • For hassle-free travel, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to board your Washington DC to Ottawa flight.

  • Flying during a peak time like February? Busy periods (like spring break, Christmas and New Year) can easily add an hour at check-in and security. Be extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

How to find the cheapest flights from Washington DC to Ottawa

  • Book four months before you travel. Research into pricing trends suggests this is the ideal window for finding cheap Washington DC to Ottawa flights.

  • July is the best month for nabbing an awesome deal on a plane ticket from Washington DC to Ottawa. If you need to travel during a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Locking in a cheap flight from Washington DC to Ottawa couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when there's a better deal.

  • Save on your Washington DC to Ottawa flight with the help of our filters. Select your ideal times, airlines and number of stops, then sort the results by 'Cheapest' to see the best deals.

Flying from Washington DC

Ronald Reagan National Airport (DCA)

  • If you're after a direct flight from Washington DC to Ottawa, you can leave from Ronald Reagan National Airport (DCA). Fly from DCA to Ottawa/Macdonald-Cartier International Airport (YOW) without any stops.

  • Air Canada is a popular carrier that offers direct Washington DC to Ottawa plane tickets from DCA.

  • Stopovers are the perfect opportunity to break up your trip — and maybe even explore a different city. When browsing Washington DC to Ottawa flights leaving from Ronald Reagan National Airport, deselect the 'Direct flights only' box to see where you can stop along the way. Here are some popular options to consider:

    • Pearson International Airport (YYZ)

    • Newark Liberty International Airport (EWR)

    • Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • Travelling from central Washington DC to DCA takes around 45 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 6 kilometres in 15 minutes or so, depending on traffic conditions.

  • Want a stress-free start to your trip? Stay near Ronald Reagan National Airport. Whether you have an early flight from Washington DC to Ottawa or want to avoid feeling rushed, these hotels are ideal:

  • 76.44% of flights that depart Ronald Reagan National Airport reach their destination on time.

  • You'll find DCA at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Prefer to take off from Washington Dulles International Airport (IAD)? This popular hub offers nonstop flights from Washington DC to Ottawa, seamlessly connecting you to Ottawa/Macdonald-Cartier International Airport (YOW).

  • From IAD, you can book a direct Washington DC to Ottawa plane ticket with United Airlines.

  • Break up your Washington DC to Ottawa flight with a stop so you can stretch your legs or tick a new place off your list. Some popular stopovers between Washington Dulles International Airport and Ottawa are:

    • Montreal-Pierre Elliott Trudeau International Airport (YUL)

    • Newark Liberty International Airport (EWR)

    • Pearson International Airport (YYZ)

  • Using public transport, you can travel from central Washington DC to IAD in around 1 hour 10 minutes. The airport is roughly 40 kilometres away. Driving will take you about 50 minutes.

  • You're going on holiday, so why not spend an extra night away? Consider kicking back in one of these hotels near Washington Dulles International Airport the day before your flight from Washington DC to Ottawa:

  • 74.39% of flights departing Washington Dulles International Airport meet their expected arrival time.

  • The street address for IAD is 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Lock in a ticket from Washington DC to Ottawa departing from Baltimore/Wash International Thurgood Marshall Airport (BWI) with a stop or two. Some popular stopovers between BWI and Ottawa are:

    • O'Hare International Airport (ORD)

    • Orlando International Airport (MCO)

    • Tampa International Airport (TPA)

  • The journey to BWI from central Washington DC is around 1 hour 30 minutes on public transport. If you prefer to travel by car, it'll take you roughly 50 minutes to cover the 40 kilometres or so.

  • Wake up, take it easy and still make your Washington DC to Ottawa flight without having to rush. These accommodation options near Baltimore/Wash International Thurgood Marshall Airport make it a breeze to get to the terminal if you're flying out first thing:

  • Flights that depart from BWI arrive at their final stop within the scheduled time frame 77.13% of the time.

Arriving in Ottawa

Ottawa/Macdonald-Cartier International Airport (YOW)

  • Ottawa Gatineau Airport (YND) is approximately 16 kilometres from central Ottawa. If you're catching a cab or a ride-share, the drive takes around 20 minutes.

  • It typically takes 1 hour 40 minutes to get there on public transport.

  • If you're arriving on a late flight from Washington DC to Ottawa, few things beat the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and resting soon after at one of these accommodation options near YOW:

  • Set your own pace with an Ottawa Gatineau Airport rental car. Pick up a set of wheels from Hertz to explore parts of Ottawa that don't always get the spotlight.

  • Reserve your vehicle from Ottawa Gatineau Airport a few weeks before your departure date to get the best deal. If you're going away during a busy period, it's a good idea to book your Washington DC to Ottawa flight even earlier.

Ottawa/Macdonald-Cartier International Airport (YOW)

  • Ottawa/Macdonald-Cartier International Airport (YOW) is around 11 kilometres from the centre of Ottawa. Once you've hopped off your flight from Washington DC to Ottawa, it takes approximately 20 minutes to get to the heart of the city in a cab or ride-share.

  • If you travel by public transport, you'll reach the centre in 45 minutes or so.

  • Forget about inconvenient public transport timetables or long cab queues. Pick up an Ottawa/Macdonald-Cartier International Airport rental car and take your trip in whatever direction you choose. Compare availability and rates from Routes Car Rentals, Alamo and Budget.

  • Snap up the best price by booking your ride from YOW two weeks in advance. You'll also have access to a bigger selection of vehicles.

  • Ottawa/Macdonald-Cartier International Airport can be found at 50 Airport Road.

Best time to go to Ottawa

  • Travel to Washington DC during peak season if you prefer a busy atmosphere, but remember that prices are generally higher. Alternatively, book flights from Washington DC to Washington DC in the off-season when prices are cheaper and it's less crowded.

  • Lock in a Washington DC to Ottawa ticket departing in July if you're eager to explore the city during its warmest month. Expect temperatures in Ottawa to range from 13ºC (55ºF) to 27ºC (81ºF).

  • If you want to travel in cooler conditions, search for a cheap flight from Washington DC to Ottawa in January when temperatures average between -19ºC (-2ºF) and -2ºC (28ºF).

More about Ottawa

  • When it comes to looking for somewhere to lay your head, you'll find the most popular stays in Ottawa right here. Check out these options once you've locked in your flight from Washington DC to Ottawa:

  • All great adventures should include a little sightseeing. Parliament Hill, Rideau Canal and National Gallery of Canada are must-do's during your Ottawa adventure.

Explore more of Canada

  • Toronto is just one of the many cities in Canada waiting to be explored once you've seen the sights of Ottawa. Around 354 kilometres to the south-west, its top attractions include CN Tower, Royal Ontario Museum and Go Tours Canada - Distillery District.

  • If there's time to check out another great destination in Canada, consider Montreal, about 153 kilometres east of Ottawa. Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal are key reasons to visit.

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.