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Cheap flights from District of Columbia to Ontario from C$ 134
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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
15 Oct — 22 Oct1
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 15 September 2025.
Round-trip from | C$ 291 |
|---|---|
One-way from | C$ 134 |
Popular in | February |
Cheapest in | June |
Average price | C$ 373 |
Good round-trip deal | C$ 214 or less |
Good one-way deal | C$ 170 or less |
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 15 September 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 15 September 2025.
Fri 17/104:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Mon 20/108:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 14/9C$ 291
Sat 8/111:45 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Sun 16/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 14/9C$ 293
Sat 18/104:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Mon 20/108:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 13/9C$ 294
Thu 16/106:00 a.m.DCA - YYZ
1 stop4h 39mAir Canada
Sun 19/107:25 a.m.YYZ - DCA
Nonstop1h 34mAir Canada
Deal found 15/9C$ 294
Thu 16/104:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Wed 22/101:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 14/9C$ 296
Mon 10/116:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Wed 12/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 14/9C$ 297
Sun 9/116:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Sun 16/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 14/9C$ 298
Thu 30/106:00 a.m.DCA - YYZ
1 stop4h 49mAir Canada
Thu 6/117:20 a.m.YYZ - DCA
Nonstop1h 35mAir Canada
Deal found 15/9C$ 298
Wed 1/104:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Wed 8/101:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 15/9C$ 301
Sat 1/111:45 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Tue 4/113:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 14/9C$ 303
Sun 12/104:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Thu 16/108:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 13/9C$ 304
Thu 30/109:45 a.m.IAD - YTZ
1 stop5h 10mMultiple Airlines
Thu 6/113:45 p.m.YTZ - IAD
Nonstop1h 29mMultiple Airlines
Deal found 15/9C$ 305
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 15 September 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 6/11
11:40 a.m.-1:10 p.m.
Nonstop1h 30m
Toronto Island
Wed 12/11
3:45 p.m.-5:14 p.m.
Nonstop1h 29m
C$ 293
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Thu 16/10
11:35 a.m.-1:08 p.m.
Nonstop1h 33m
Toronto Island
Sun 19/10
8:45 a.m.-10:16 a.m.
Nonstop1h 31m
C$ 293
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Thu 6/11
11:40 a.m.-1:10 p.m.
Nonstop1h 30m
Toronto Island
Sat 15/11
11:00 a.m.-12:29 p.m.
Nonstop1h 29m
C$ 293
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Sat 8/11
1:45 p.m.-3:15 p.m.
Nonstop1h 30m
Toronto Island
Wed 12/11
3:45 p.m.-5:14 p.m.
Nonstop1h 29m
C$ 293
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Mon 10/11
6:30 p.m.-8:00 p.m.
Nonstop1h 30m
Toronto Island
Wed 12/11
3:45 p.m.-5:14 p.m.
Nonstop1h 29m
C$ 297
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Tue 11/11
11:40 a.m.-1:10 p.m.
Nonstop1h 30m
Toronto Island
Wed 12/11
3:45 p.m.-5:14 p.m.
Nonstop1h 29m
C$ 297
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Fri 7/11
6:30 p.m.-8:00 p.m.
Nonstop1h 30m
Toronto Island
Thu 13/11
3:45 p.m.-5:14 p.m.
Nonstop1h 29m
C$ 298
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Sun 12/10
11:35 a.m.-1:08 p.m.
Nonstop1h 33m
Toronto Island
Wed 15/10
1:35 p.m.-3:06 p.m.
Nonstop1h 31m
C$ 304
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Mon 6/10
11:35 a.m.-1:08 p.m.
Nonstop1h 33m
Toronto Island
Wed 8/10
1:35 p.m.-3:06 p.m.
Nonstop1h 31m
C$ 304
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Thu 30/10
12:55 p.m.-6:13 p.m.
1 stop5h 18m
Toronto Island
Thu 6/11
10:30 a.m.-3:31 p.m.
1 stop5h 01m
C$ 312
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$ 169). 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 15 September 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.
Weekly flight availability from District of Columbia to Region of Ontario
Explore weekly flight availability from District of Columbia to Ontario. 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 15 September 2025.
The most flights from USDC to CAON are scheduled on a Wednesday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (13 on average).
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 15 September 2025.
See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines 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
7.9
Entertainment
7.0
Food
7.6
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Comfort
7.9
Entertainment
7.0
Food
7.6
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Comfort
7.9
Entertainment
7.0
Food
7.6
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Comfort
7.9
Entertainment
7.0
Food
7.6
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
Comfort
7.9
Entertainment
7.0
Food
7.6
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreAnonymous,Sep 2025
YYZ - OPO
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 4 airlines flying from District of Columbia to Ontario
Discover the top 4 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 15 September 2025.
Fly with Cheapflights
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.