$90+ Cheap flights from District of Columbia to Ontario
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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
Feb 28 — Mar 71
1 adult, Economy
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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 January 29, 2026.
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 January 29, 2026.
This Mytrip deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/138:40 pm
DCA
- YYZ
Nonstop1h 37m
Air Canada
Fri 3/207:20 am
YYZ
- DCA
Nonstop1h 35m
Air Canada
Deal found 1/26![Air Canada logo]()
$179
This Booking.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/139:00 am
IAD
- YYZ
Nonstop1h 29m
Air Canada
Fri 3/206:55 pm
YYZ
- IAD
Nonstop1h 31m
Air Canada
Deal found 1/27![Air Canada logo]()
$184
This Flightnetwork deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:40 pm
DCA
- YYZ
Nonstop1h 32m
Air Canada
Sat 4/47:20 am
YYZ
- DCA
Nonstop1h 33m
Air Canada
Deal found 1/28![Air Canada logo]()
$197
This Flightnetwork deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1912:55 pm
DCA
- YYZ
1 stop6h 31m
Air Canada
Wed 3/254:30 pm
YYZ
- DCA
Nonstop1h 35m
Air Canada
Deal found 1/28![Air Canada logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:30 pm
IAD
- YTZ
Nonstop1h 30m
Porter Airlines
Sun 2/223:45 pm
YTZ
- IAD
Nonstop1h 29m
Porter Airlines
Deal found 1/27![Porter Airlines logo]()
$199
This Flightnetwork deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1912:55 pm
DCA
- YYZ
1 stop6h 31m
Air Canada
Mon 3/238:15 am
YYZ
- DCA
1 stop4h 04m
Air Canada
Deal found 1/28![Air Canada logo]()
$200
This Trip.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:40 am
IAD
- YTZ
Nonstop1h 30m
Porter Airlines
Sat 3/711:00 am
YTZ
- IAD
Nonstop1h 29m
Porter Airlines
Deal found 1/28![Porter Airlines logo]()
$201
This Trip.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:30 pm
IAD
- YTZ
Nonstop1h 30m
Porter Airlines
Sat 3/2811:00 am
YTZ
- IAD
Nonstop1h 29m
Porter Airlines
Deal found 1/28![Porter Airlines logo]()
$202
This Trip.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:40 am
IAD
- YTZ
Nonstop1h 30m
Porter Airlines
Sun 2/223:45 pm
YTZ
- IAD
Nonstop1h 29m
Porter Airlines
Deal found 1/28![Porter Airlines logo]()
$203
This Flightnetwork deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:00 am
DCA
- YYZ
2 stops7h 20m
Air Canada
Tue 3/247:10 am
YYZ
- DCA
1 stop5h 09m
Air Canada
Deal found 1/28![Air Canada logo]()
$203
This Flightnetwork deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/309:00 am
IAD
- YYZ
Nonstop1h 28m
Air Canada
Sat 4/45:30 pm
YYZ
- IAD
1 stop3h 48m
Air Canada
Deal found 1/28![Air Canada logo]()
$203
This Trip.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:30 pm
IAD
- YTZ
Nonstop1h 30m
Porter Airlines
Mon 2/238:50 am
YTZ
- IAD
Nonstop1h 32m
Porter Airlines
Deal found 1/27![Porter Airlines logo]()
$204
Find 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 January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $179 (Mytrip) |
One-way from | $90 (Mytrip) |
Popular in | November |
Cheapest in | June |
Average price | $283 |
Good round-trip deal | $187 or less |
Good one-way deal | $128 or less |
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 2,558,603 searches. Data last updated January 29, 2026.
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
Wed 2/25
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Sat 3/28
11:00 am-12:29 pm
Nonstop1h 29m
$206
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Mon 3/2
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Wed 3/25
8:55 am-10:24 am
Nonstop1h 29m
$206
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Thu 2/26
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Mon 3/30
8:55 am-10:24 am
Nonstop1h 29m
$207
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Thu 2/19
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Fri 2/20
3:45 pm-5:14 pm
Nonstop1h 29m
$207
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Wed 2/18
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Mon 2/23
8:50 am-10:22 am
Nonstop1h 32m
$207
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Thu 2/19
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Sat 2/21
11:05 am-12:34 pm
Nonstop1h 29m
$207
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Wed 2/18
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Sat 2/21
11:05 am-12:34 pm
Nonstop1h 29m
$207
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Thu 2/19
11:40 am-1:10 pm
Nonstop1h 30m
Toronto Island
Mon 2/23
8:50 am-10:22 am
Nonstop1h 32m
$207
Washington, D.C.Toronto
IAD - YTZ
IADYTZ
Washington, D.C. Dulles Intl
Fri 2/27
6:30 pm-8:00 pm
Nonstop1h 30m
Toronto Island
Mon 3/30
8:55 am-10:24 am
Nonstop1h 29m
$207
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Fri 3/13
12:55 pm-6:10 pm
1 stop5h 15m
Toronto Island
Fri 3/20
8:30 am-3:31 pm
1 stop7h 01m
$211
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, March is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of $98). Flying from District of Columbia to Region of Ontario in January is currently the most expensive (average of $193). 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 January 29, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 45% on flights from District of Columbia to Region of Ontario by exploring options for tickets at noon.
What is the cheapest day to fly from District of Columbia to Region of Ontario?
Use this chart to determine the cheapest time to fly round-trip from District of Columbia to Ontario. Price data was last updated on November 25, 2025.
Travelers seeking maximum savings on their District of Columbia to Region of Ontario flight should consider departing on Sunday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 January 29, 2026.
The most flights from USDC to CAON are scheduled on a Wednesday (16 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).
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 January 29, 2026.
Get a feel of what it's like to fly with Porter Airlines, Air Transat, and United Airlines from District of Columbia to Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.5
Boarding
8.2
Comfort
7.9
Overall
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Comfort
7.9
Overall
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Comfort
7.9
Overall
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Comfort
7.9
Overall
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Comfort
7.9
Overall
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Comfort
7.9
Overall
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - 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 7 airlines flying from District of Columbia to Ontario
Discover the top 7 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 2,558,603 searches. Data last updated January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$311 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$108 | Average$388 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$121 | Average$376 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$176 | Average$245 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$182 | Average$323 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$262 | Average$372 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$349 | Average$495 | FlexibilityNo cancel fee | On-time60% |