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Cheap flights from District of Columbia to Ontario from C$ 104
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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
5 Aug — 12 Aug1
Round-trip
1 adult
Economy
Cheap flight deals from District of Columbia to Ontario
Keep the following information in mind while searching for District of Columbia to Ontario flight deals. Data was last updated 31 July 2025.
Find flight deals from District of Columbia to Ontario
Cheapest flights from District of Columbia to OntarioExplore the most affordable flight options available from District of Columbia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.
Explore the most affordable flight options available from District of Columbia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.
Thu 4/94:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Sun 7/98:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 31/7C$ 263
Thu 4/96:00 a.m.DCA - YYZ
1 stop5h 39mAir Canada
Sun 7/96:30 a.m.YYZ - DCA
1 stop5h 38mAir Canada
Deal found 30/7C$ 293
Wed 27/812:55 p.m.DCA - YTZ
1 stop5h 50mAir Canada
Sat 30/83:25 p.m.YTZ - DCA
1 stop6h 23mAir Canada
Deal found 31/7C$ 296
Wed 3/910:20 a.m.IAD - YYZ
Nonstop1h 32mAir Canada
Tue 21/1012:10 p.m.YYZ - IAD
Nonstop1h 28mAir Canada
Deal found 29/7C$ 300
Tue 2/94:20 p.m.IAD - YTZ
Nonstop1h 33mMultiple Airlines
Thu 4/91:35 p.m.YTZ - IAD
Nonstop1h 31mMultiple Airlines
Deal found 30/7C$ 331
Wed 3/95:30 p.m.DCA - YYZ
1 stop5h 28mDelta
Fri 24/103:35 p.m.YYZ - DCA
1 stop7h 23mDelta
Deal found 29/7C$ 335
Wed 3/96:00 a.m.IAD - YYZ
1 stop7h 32mDelta
Sat 25/109:45 a.m.YYZ - IAD
1 stop6h 44mDelta
Deal found 29/7C$ 335
Tue 19/89:35 a.m.IAD - YTZ
1 stop5h 11mAir Canada
Fri 29/83:25 p.m.YTZ - IAD
1 stop5h 36mAir Canada
Deal found 29/7C$ 342
Sun 21/912:41 p.m.IAD - YYZ
Nonstop1h 38mUnited Airlines
Sun 21/96:00 p.m.YYZ - IAD
1 stop4h 39mUnited Airlines
Deal found 31/7C$ 352
Sat 13/94:20 p.m.IAD - YUL
1 stop3h 50mPorter Airlines
Sat 20/910:45 a.m.YUL - IAD
1 stop4h 21mPorter Airlines
Deal found 28/7C$ 363
Thu 11/92:54 p.m.DCA - YYZ
Nonstop1h 39mAmerican Airlines
Sat 20/95:17 p.m.YYZ - DCA
Nonstop1h 42mAmerican Airlines
Deal found 30/7C$ 363
Thu 11/910:20 a.m.IAD - YUL
1 stop11h 21mMultiple Airlines
Mon 15/910:45 a.m.YUL - IAD
1 stop4h 21mMultiple Airlines
Deal found 29/7C$ 364
Cheapflights Fare Finder
Customize your flight search to find flights from District of Columbia to Ontario 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 31 July 2025.
Use the filters below to find and compare flights from District of Columbia to Ontario that are best for you.
Fly from
District of Columbia
Fly to
Ontario
Route
Depart
Return
Price
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Thu 4/9
4:20 p.m.-5:53 p.m.
Nonstop1h 33m
Toronto Island
Sun 7/9
8:45 a.m.-10:16 a.m.
Nonstop1h 31m
C$ 263
Washington, D.C.Toronto
DCA - YYZ
DCAYYZ
Washington, D.C. Reagan-National
Thu 4/9
6:00 a.m.-10:39 a.m.
1 stop4h 39m
Toronto Pearson Intl
Sun 7/9
8:00 a.m.-12:08 p.m.
1 stop4h 08m
C$ 266
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Wed 27/8
12:55 p.m.-6:45 p.m.
1 stop5h 50m
Toronto Island
Sat 30/8
3:25 p.m.-9:48 p.m.
1 stop6h 23m
C$ 296
Washington, D.C.Toronto
IAD - YYZ
IADYYZ
Washington, D.C. Dulles Intl
Wed 3/9
2:25 p.m.-3:57 p.m.
Nonstop1h 32m
Toronto Pearson Intl
Sat 25/10
12:10 p.m.-1:38 p.m.
Nonstop1h 28m
C$ 300
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Wed 27/8
9:35 a.m.-2:46 p.m.
1 stop5h 11m
Toronto Island
Fri 29/8
1:25 p.m.-2:56 p.m.
Nonstop1h 31m
C$ 302
Washington, D.C.Toronto
DCA - YYZ
DCAYYZ
Washington, D.C. Reagan-National
Wed 3/9
5:30 p.m.-10:58 p.m.
1 stop5h 28m
Toronto Pearson Intl
Fri 24/10
3:35 p.m.-10:58 p.m.
1 stop7h 23m
C$ 335
Washington, D.C.Toronto
IAD - YYZ
IADYYZ
Washington, D.C. Dulles Intl
Wed 3/9
6:15 p.m.-10:58 p.m.
1 stop4h 43m
Toronto Pearson Intl
Thu 23/10
6:00 a.m.-11:57 a.m.
1 stop5h 57m
C$ 335
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Tue 19/8
9:35 a.m.-2:46 p.m.
1 stop5h 11m
Toronto Island
Fri 29/8
3:25 p.m.-9:01 p.m.
1 stop5h 36m
C$ 342
Washington, D.C.Toronto
IAD - YYZ
IADYYZ
Washington, D.C. Dulles Intl
Sun 21/9
12:41 p.m.-2:19 p.m.
Nonstop1h 38m
Toronto Pearson Intl
Sun 21/9
6:00 p.m.-10:39 p.m.
1 stop4h 39m
C$ 352
Washington, D.C.Montreal
IAD - YUL
IADYUL
Washington, D.C. Dulles Intl
Sat 13/9
4:20 p.m.-8:10 p.m.
1 stop3h 50m
Montreal Pierre Elliott Trudeau Intl
Sat 20/9
10:45 a.m.-3:06 p.m.
1 stop4h 21m
C$ 363
Showing 1-10 of 60 results
Best time to book a flight from District of Columbia to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from District of Columbia with our price prediction graph.
Estimated round-trip 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 District of Columbia to Ontario
What is the cheapest month to book a flight from District of Columbia to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of C$ 167). Flying from District of Columbia to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 DC to ON?
Find hourly flight availability from District of Columbia to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 July 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Region of Ontario as you normally would.
How much does it cost to fly round-trip from District of Columbia to Region of Ontario?
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 31 July 2025.
See what other customers who have flown with Porter Airlines,Delta, andAir Transat from District of Columbia to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.2
Crew
8.7
Entertainment
7.0
Overall
8.0
Food
7.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Comfort
8.0
Boarding
8.2
Crew
8.7
Entertainment
7.0
Overall
8.0
Food
7.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Comfort
8.0
Boarding
8.2
Crew
8.7
Entertainment
7.0
Overall
8.0
Food
7.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Comfort
8.0
Boarding
8.2
Crew
8.7
Entertainment
7.0
Overall
8.0
Food
7.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Comfort
8.0
Boarding
8.2
Crew
8.7
Entertainment
7.0
Overall
8.0
Food
7.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Comfort
8.0
Boarding
8.2
Crew
8.7
Entertainment
7.0
Overall
8.0
Food
7.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Related info for your journey
Find useful and relevant information for your journey from District of Columbia to Ontario. 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 District of Columbia to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from District of Columbia to Ontario
Discover the top 5 airlines that operate flights from District of Columbia to Ontario. 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 31 July 2025.
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Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from District of Columbia to Ontario?
Deals for District of Columbia to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from District of Columbia to Ontario?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from District of Columbia to Ontario for you. Better yet — we are completely free to use.
Can Cheapflights find flights from District of Columbia to Ontario with no change fees?
Yes! Cheapflights helps users easily find flights from District of Columbia to Ontario with no change fees.
Can Cheapflights notify me if prices for flights from District of Columbia to Ontario become cheaper?
Yes, Cheapflights offers price alerts on District of Columbia to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.