Cheap flights from Ontario to Washington, D.C. from C$ 170
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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ontario to Washington, D.C.
Keep the following information in mind while searching for Ontario to Washington, D.C. flight deals. Data was last updated 26 March 2025.
Find flight deals from Ontario to Washington, D.C.
Cheapest flights from Ontario to Washington, D.C.Explore the most affordable flight options available from Ontario to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2025.
Explore the most affordable flight options available from Ontario to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 March 2025.
Use the filters below to find and compare flights from Ontario to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
TorontoWashington, D.C.
YYZ - DCA
YYZDCA
Toronto Pearson Intl
Wed 23/4
12:30 a.m.-10:19 a.m.
1 stop9h 49m
Washington, D.C. Reagan-National
Thu 1/5
6:59 a.m.-8:32 a.m.
Nonstop1h 33m
TorontoWashington, D.C.
YTZ - IAD
YTZIAD
Toronto Island
Sat 12/4
8:25 a.m.-1:12 p.m.
1 stop4h 47m
Washington, D.C. Dulles Intl
Sun 20/4
4:07 p.m.-9:35 p.m.
1 stop5h 28m
TorontoWashington, D.C.
YYZ - IAD
YYZIAD
Toronto Pearson Intl
Thu 24/4
5:05 p.m.-9:15 p.m.
1 stop4h 10m
Washington, D.C. Dulles Intl
Sun 27/4
3:55 p.m.-8:43 p.m.
1 stop4h 48m
TorontoWashington, D.C.
YYZ - IAD
YYZIAD
Toronto Pearson Intl
Wed 7/5
12:10 p.m.-1:41 p.m.
Nonstop1h 31m
Washington, D.C. Dulles Intl
Fri 9/5
9:45 a.m.-3:34 p.m.
1 stop5h 49m
TorontoWashington, D.C.
YTZ - IAD
YTZIAD
Toronto Island
Fri 18/4
8:55 p.m.-10:24 p.m.
Nonstop1h 29m
Washington, D.C. Dulles Intl
Sun 20/4
7:00 a.m.-8:30 a.m.
Nonstop1h 30m
TorontoWashington, D.C.
YYZ - DCA
YYZDCA
Toronto Pearson Intl
Thu 24/4
7:30 a.m.-12:36 p.m.
1 stop5h 06m
Washington, D.C. Reagan-National
Mon 28/4
9:40 a.m.-11:13 a.m.
Nonstop1h 33m
TorontoWashington, D.C.
YYZ - IAD
YYZIAD
Toronto Pearson Intl
Thu 1/5
6:20 p.m.-7:15 a.m.
1 stop12h 55m
Washington, D.C. Dulles Intl
Wed 7/5
8:15 a.m.-9:17 p.m.
1 stop13h 02m
TorontoWashington, D.C.
YTZ - IAD
YTZIAD
Toronto Island
Fri 11/4
11:30 a.m.-12:59 p.m.
Nonstop1h 29m
Washington, D.C. Dulles Intl
Tue 15/4
7:00 a.m.-8:30 a.m.
Nonstop1h 30m
TorontoWashington, D.C.
YYZ - DCA
YYZDCA
Toronto Pearson Intl
Thu 24/4
6:00 a.m.-10:15 a.m.
1 stop4h 15m
Washington, D.C. Reagan-National
Mon 28/4
6:25 a.m.-11:20 a.m.
1 stop4h 55m
TorontoWashington, D.C.
YYZ - DCA
YYZDCA
Toronto Pearson Intl
Fri 11/4
3:00 p.m.-7:42 p.m.
1 stop4h 42m
Washington, D.C. Reagan-National
Mon 21/4
6:00 a.m.-11:39 a.m.
1 stop5h 39m
Best time to book a flight from Ontario to Washington, D.C.
Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Washington, D.C.
What is the cheapest month to book a flight from Region of Ontario to Washington, D.C.?
Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of C$ 256). Flying from Region of Ontario to Washington, D.C. in October is currently the most expensive (average of C$ 352). 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 ON to WAS?
Find hourly flight availability from Ontario to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 March 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Washington, D.C. as you normally would.
Weekly flight availability from Region of Ontario to Washington, D.C.
Explore weekly flight availability from Ontario to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 26 March 2025.
The most flights from CAON to WAS are scheduled on a Monday (29 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).
Rainfall in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.
Temperature in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C., 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).
Reviews of airlines servicing Washington, D.C.
Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 26 March 2025.
Read through reviews of airlines operating flights from Ontario to Washington, D.C., such as Delta, Porter Airlines and Air Transat. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Comfort
Overall
Crew
Entertainment
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Overall
Crew
Entertainment
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Overall
Crew
Entertainment
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Overall
Crew
Entertainment
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Overall
Crew
Entertainment
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Overall
Crew
Entertainment
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Ontario to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Ontario to Washington, D.C.
Discover the top 7 airlines that operate flights from Ontario to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 March 2025.
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How does Cheapflights help users find flights from Ontario to Washington, D.C.?
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Why should you use Cheapflights to find cheap flight tickets from Ontario to Washington, D.C.?
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Can Cheapflights find flights from Ontario to Washington, D.C. with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Washington, D.C. flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Ontario to Washington, D.C. become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington, D.C. from Ontario today and book when prices fit your budget.