What is the cheapest day to fly from Washington, D.C. to Ottawa?

Travellers seeking maximum savings on their Washington, D.C. to Ottawa flight should consider departing on Sunday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 inches per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

What are the most reliable airlines from Washington, D.C. to Ottawa?

Consider GoJet (75%), Air Canada (75%) or United Airlines (75%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to Ottawa.

What is the cheapest day to fly round-trip from Washington, D.C. to Ottawa?

Thursday flights are generally found to be more expensive for flights from Washington, D.C. to Ottawa. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ottawa.

How far in advance should I book a flight from Washington, D.C. to Ottawa?

Travelers have found it’s best to book a flight 58 days in advance to save up to 181% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 58 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. to Ottawa 1-2 weeks in advance for as low as £213, or £293 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. to Ottawa?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, January can be a great choice for travel to Ottawa. Flights to Ottawa from Washington, D.C. in January are about £284 on average during January, but can be found for as low as £128.

What airport do you fly into for flights to Ottawa from Washington, D.C.?

Located just 6.6 mi from the city center, Ottawa is the airport most travelers will use when flying to Ottawa from Washington, D.C.. Booking flights from Washington, D.C. to Ottawa (YOW) should be relatively easy as there are 9 daily inbound flights from Washington, D.C. from 0 different airlines.

Can I find deals for flights from Washington, D.C. to Ottawa that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Ottawa flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Ottawa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Ottawa.

Can I find deals for business class flights from Washington, D.C. to Ottawa?

Yes. Cheapflights offers flight deals from Washington, D.C. to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£220+ Flights from Washington, D.C. to Ottawa

Q: How much does it cost for a return flight from Washington, D.C. to Ottawa?

Airfare is typical for this route at the moment. Washington, D.C. to Ottawa flights typically cost between £242 and £471 in October. The cheapest return flight price found within the last 3 days was £319 on Multiple Airlines (11 Oct-18 Oct).

Cheapflights Tip: The best prices from Washington, D.C. to Ottawa are usually found in January or November, booked 57 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Washington, D.C. to Ottawa

Round-trip from	£319
One-way from	£220
Popular in	March
Cheapest in	January
Average price	£333

Air Canada
11/10-18/10
1 total stop
7h 59m total
Washington, D.C. to Ottawa

Search Deals

United Airlines
31/10
Nonstop
1h 35m total
Washington, D.C. to Ottawa

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£6 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Washington, D.C. to Ottawa

Cheapest flights from Washington, D.C. to Ottawa
Explore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Sat 11/1006:00DCA - YOW

1 stop6h 16mMultiple Airlines

Sat 18/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 13/9£319

Thu 9/1015:00DCA - YOW

1 stop7h 05mMultiple Airlines

Thu 16/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 14/9£321

Mon 20/1007:00DCA - YOW

1 stop4h 45mMultiple Airlines

Mon 20/1013:55YOW - DCA

1 stop8h 39mMultiple Airlines

Deal found 14/9£322

Tue 7/1010:33DCA - YOW

1 stop6h 10mUnited Airlines

Fri 10/1006:05YOW - DCA

1 stop6h 14mUnited Airlines

Deal found 14/9£331

Mon 20/1012:55DCA - YOW

Nonstop1h 31mUnited Airlines

Mon 20/1017:25YOW - DCA

1 stop5h 18mUnited Airlines

Deal found 14/9£342

Wed 8/1012:55DCA - YOW

Nonstop1h 31mUnited Airlines

Fri 10/1006:05YOW - DCA

1 stop6h 14mUnited Airlines

Deal found 13/9£363

Fri 10/1009:00DCA - YOW

1 stop13h 05mMultiple Airlines

Wed 15/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 14/9£381

Sat 11/1006:00DCA - YOW

1 stop6h 16mUnited Airlines

Mon 13/1006:05YOW - DCA

1 stop6h 14mUnited Airlines

Deal found 13/9£392

Thu 9/1015:00DCA - YOW

1 stop7h 05mMultiple Airlines

Mon 20/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 14/9£403

Best flights from Washington, D.C. to Ottawa
Discover carefully curated flight deals from Washington, D.C. to Ottawa that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2025.

Thu 9/1007:00DCA - YOW

1 stop9h 43mMultiple Airlines

Thu 16/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 13/9£321

Sat 22/1107:00DCA - YOW

1 stop6h 32mUnited Airlines

Mon 1/1211:10YOW - DCA

1 stop12h 49mUnited Airlines

Deal found 12/9£331

Thu 9/1009:00DCA - YOW

1 stop7h 43mMultiple Airlines

Sat 18/1011:05YOW - DCA

1 stop4h 46mMultiple Airlines

Deal found 14/9£321

Wed 8/1006:00DCA - YOW

1 stop5h 45mUnited Airlines

Fri 10/1006:05YOW - DCA

1 stop6h 14mUnited Airlines

Deal found 13/9£331

Sat 11/1006:00DCA - YOW

1 stop6h 16mMultiple Airlines

Sat 18/1006:00YOW - DCA

1 stop4h 20mMultiple Airlines

Deal found 13/9£324

Tue 7/1013:00DCA - YOW

1 stop3h 43mUnited Airlines

Fri 10/1006:05YOW - DCA

1 stop4h 23mUnited Airlines

Deal found 13/9£331

Direct flights from Washington, D.C. to Ottawa
Explore direct flight options from Washington, D.C. to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2025.

Fri 10/1012:55DCA - YOW

Nonstop1h 31mMultiple Airlines

Wed 15/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 14/9£422

Fri 10/1012:55DCA - YOW

Nonstop1h 31mUnited Airlines

Sun 12/1010:25YOW - DCA

Nonstop1h 43mUnited Airlines

Deal found 15/9£476

Fri 10/1012:55DCA - YOW

Nonstop1h 31mMultiple Airlines

Sun 12/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 14/9£532

Fri 10/1012:55DCA - YOW

Nonstop1h 31mUnited Airlines

Mon 13/1010:25YOW - DCA

Nonstop1h 43mUnited Airlines

Deal found 13/9£556

Sat 27/912:55DCA - YOW

Nonstop1h 31mUnited Airlines

Tue 30/910:25YOW - DCA

Nonstop1h 43mUnited Airlines

Deal found 14/9£700

Last-minute flights from Washington, D.C. to Ottawa
Discover last-minute flight deals from Washington, D.C. to Ottawa. Data last updated 15 September 2025 and is based on user searches.

Tue 7/1010:33DCA - YOW

1 stop6h 10mUnited Airlines

Fri 10/1006:05YOW - DCA

1 stop6h 14mUnited Airlines

Deal found 14/9£331

Wed 8/1012:55DCA - YOW

Nonstop1h 31mUnited Airlines

Fri 10/1006:05YOW - DCA

1 stop6h 14mUnited Airlines

Deal found 13/9£363

Thu 9/1011:03DCA - YOW

1 stop11h 02mMultiple Airlines

Thu 16/1006:00YOW - DCA

1 stop4h 20mMultiple Airlines

Deal found 14/9£321

Thu 9/1015:00DCA - YOW

1 stop7h 05mMultiple Airlines

Mon 20/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 14/9£403

Fri 10/1009:00DCA - YOW

1 stop13h 05mMultiple Airlines

Wed 15/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 14/9£381

Sat 11/1006:00DCA - YOW

1 stop6h 16mMultiple Airlines

Sat 18/1010:25YOW - DCA

Nonstop1h 43mMultiple Airlines

Deal found 13/9£319

Sat 11/1015:27DCA - YOW

1 stop6h 38mUnited Airlines

Mon 13/1006:05YOW - DCA

1 stop6h 14mUnited Airlines

Deal found 14/9£392

Mon 20/1007:00DCA - YOW

1 stop4h 45mMultiple Airlines

Mon 20/1013:55YOW - DCA

1 stop8h 39mMultiple Airlines

Deal found 14/9£322

Mon 20/1012:55DCA - YOW

Nonstop1h 31mUnited Airlines

Mon 20/1017:25YOW - DCA

1 stop5h 18mUnited Airlines

Deal found 14/9£342

One-way flights from Washington, D.C. to Ottawa
Search for one-way flight options from Washington, D.C. to Ottawa. Find affordable one-way fares based on user searches. Data last updated 15 September 2025.

Fri 10/1012:55DCA - YOW

Nonstop1h 31mUnited Airlines

Deal found 14/9£220

Sat 14/306:00DCA - YOW

2 stops11h 18mUnited Airlines

Deal found 14/9£312

Thu 25/912:55DCA - YOW

Nonstop1h 31mUnited Airlines

Deal found 13/9£326

Thu 25/909:40DCA - YOW

1 stop4h 11mAir Canada

Deal found 13/9£330

Wed 29/1012:00DCA - YOW

2 stops9h 18mUnited Airlines

Deal found 14/9£362

Fri 31/1006:00DCA - YOW

2 stops11h 18mUnited Airlines

Deal found 15/9£375

Fri 6/307:00DCA - YOW

2 stops8h 23mUnited Airlines

Deal found 14/9£423

Thu 25/912:30DCA - YOW

2 stops11h 52mDelta

Deal found 13/9£506

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 9/10

07:00-16:43

1 stop9h 43m

Ottawa

Thu 16/10

10:25-12:08

Nonstop1h 43m

£321

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 9/10

09:00-16:43

1 stop7h 43m

Ottawa

Sat 18/10

11:05-15:51

1 stop4h 46m

£321

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sat 11/10

06:00-12:16

1 stop6h 16m

Ottawa

Sat 18/10

06:00-10:20

1 stop4h 20m

£324

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sat 22/11

07:00-13:32

1 stop6h 32m

Ottawa

Mon 1/12

11:10-23:59

1 stop12h 49m

£331

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 8/10

06:00-11:45

1 stop5h 45m

Ottawa

Fri 10/10

06:05-12:19

1 stop6h 14m

£331

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Tue 7/10

13:00-16:43

1 stop3h 43m

Ottawa

Fri 10/10

06:05-10:28

1 stop4h 23m

£331

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 31/10

12:55-14:30

Nonstop1h 35m

£220

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 10/10

12:55-14:26

Nonstop1h 31m

£220

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sat 14/3

06:00-17:18

2 stops11h 18m

£312

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 25/9

12:55-14:26

Nonstop1h 31m

£326

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 13 results

Best time to book a flight from Washington, D.C. to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington, D.C. with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Ottawa

How far ahead should I book a flight from Washington, D.C. to Ottawa?

The price you pay for your flight from Washington, D.C. to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of £588). Flying from Washington, D.C. to Ottawa in December is currently the most expensive (average of £875). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to YOW?

It’s optimal to fly from Washington, D.C. to Ottawa in the morning. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight at midday.

Weekly flight availability from Washington, D.C. to Ottawa

The most flights from WAS to YOW are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost for a return flight from Washington, D.C. to Ottawa?

Related info for your journey

What airport do you fly into for flights to Ottawa from Washington, D.C.?
Located just 6.6 mi from the city center, Ottawa is the airport most travelers will use when flying to Ottawa from Washington, D.C.. Booking flights from Washington, D.C. to Ottawa (YOW) should be relatively easy as there are 9 daily inbound flights from Washington, D.C. from 0 different airlines.
What are the most reliable airlines from Washington, D.C. to Ottawa?
Consider GoJet (75%), Air Canada (75%) or United Airlines (75%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to Ottawa.
Can I find deals for flights from Washington, D.C. to Ottawa that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Ottawa flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Ottawa.
Can I find deals for business class flights from Washington, D.C. to Ottawa?
Yes. Cheapflights offers flight deals from Washington, D.C. to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Ottawa?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of £588). Flying from Washington, D.C. to Ottawa in December is currently the most expensive (average of £875). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Cheapflights makes it easy to find Washington, D.C. to Ottawa flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Ottawa?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ottawa from Washington, D.C..

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Cheap flights from Washington, D.C. to Ottawa from £220

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Washington, D.C. to Ottawa are usually found in January or November, booked 57 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Washington, D.C. to Ottawa

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Ottawa

Cheapest flights from Washington, D.C. to OttawaExplore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Explore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Best time to book a flight from Washington, D.C. to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Ottawa

How far ahead should I book a flight from Washington, D.C. to Ottawa?

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to Ottawa. Price data was last updated on 12 September 2025.

What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

What is the cheapest time of day to fly from WAS to YOW?

Find hourly flight availability from Washington, D.C. to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2025.

Weekly flight availability from Washington, D.C. to Ottawa

How much does it cost for a return flight from Washington, D.C. to Ottawa?

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ottawa from Washington, D.C.?

What are the most reliable airlines from Washington, D.C. to Ottawa?

Can I find deals for flights from Washington, D.C. to Ottawa that include hotel bookings?

How can I find direct flights from Washington, D.C. to Ottawa?

Can I find deals for business class flights from Washington, D.C. to Ottawa?

What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

Travelling to a place near Ottawa?

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Alternative routes for Washington, D.C. to Ottawa

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How does Cheapflights help users find flights from Washington, D.C. to Ottawa?

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Cheapest flights from Washington, D.C. to Ottawa
Explore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.