$90+ Cheap flights from Reagan-National (DCA) 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.
Find cheap flights from Reagan-National to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Reagan-National to Ontario
Cheapest flights from Reagan-National to OntarioExplore the most affordable flight options available from Reagan-National 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 Reagan-National 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.
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.
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.
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.
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.
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.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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.
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.
Find flight deals from Reagan-National to Ontario
Keep the following information in mind while searching for Reagan-National 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 | $352 or less |
Good one-way deal | $171 or less |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
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
Washington, D.C.Toronto
DCA - YYZ
DCAYYZ
Washington, D.C. Reagan-National
Sat 5/30
12:45 pm-5:10 pm
1 stop4h 25m
Toronto Pearson Intl
Sun 5/31
6:25 pm-7:58 pm
Nonstop1h 33m
Washington, D.C.Toronto
DCA - YYZ
DCAYYZ
Washington, D.C. Reagan-National
Thu 4/23
9:40 am-11:14 am
Nonstop1h 34m
Toronto Pearson Intl
Sun 4/26
8:15 am-12:01 pm
1 stop3h 46m
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Sat 2/28
4:15 pm-9:35 pm
1 stop5h 20m
Toronto Island
Sun 3/8
9:55 pm-12:19 pm
1 stop14h 24m
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Thu 3/19
6:00 am-11:42 am
2 stops5h 42m
Toronto Island
Mon 3/23
5:30 pm-9:56 pm
1 stop4h 26m
Washington, D.C.Toronto
DCA - YYZ
DCAYYZ
Washington, D.C. Reagan-National
Thu 2/26
10:08 am-11:51 am
Nonstop1h 43m
Toronto Pearson Intl
Thu 3/5
10:59 am-12:40 pm
Nonstop1h 41m
Washington, D.C.Toronto
DCA - YYZ
DCAYYZ
Washington, D.C. Reagan-National
Wed 4/15
6:50 pm-8:24 pm
Nonstop1h 34m
Toronto Pearson Intl
Thu 4/30
4:30 pm-6:03 pm
Nonstop1h 33m
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Fri 4/10
12:55 pm-6:17 pm
1 stop5h 22m
Toronto Island
Mon 4/13
7:50 am-12:01 pm
1 stop4h 11m
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Thu 4/23
12:55 pm-6:17 pm
1 stop5h 22m
Toronto Island
Sun 4/26
7:50 am-12:01 pm
1 stop4h 11m
Washington, D.C.Toronto
DCA - YTZ
DCAYTZ
Washington, D.C. Reagan-National
Thu 4/16
12:55 pm-6:17 pm
1 stop5h 22m
Toronto Island
Thu 4/30
7:50 am-12:01 pm
1 stop4h 11m
Best time to book a flight from Reagan-National to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Reagan-National with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Ontario
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Region of Ontario?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Region of Ontario (average of $106). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in October is currently the most expensive (average of $232). 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 DCA to ON?
Find hourly flight availability from Reagan-National 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.
One of the essential ways to save on airfare from Washington, D.C. Reagan-National Airport to Region of Ontario is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 35% on airfare.
What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Region of Ontario?
Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Ontario. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Region of Ontario flight should consider departing on Wednesday evenings 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 Washington, D.C. Reagan-National Airport to Region of Ontario
Explore weekly flight availability from Reagan-National 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 DCA to CAON are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 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 January 29, 2026.
Peruse reviews from past customers who have flown with Porter Airlines, United Airlines, and American Airlines from Washington, D.C. Reagan-National Airport to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Mohameed,Nov 2025
LAS - YYZ
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Mohameed,Nov 2025
LAS - YYZ
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Mohameed,Nov 2025
LAS - YYZ
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Mohameed,Nov 2025
LAS - YYZ
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Mohameed,Nov 2025
LAS - YYZ
Related info for your journey
Find useful and relevant information for your journey from Reagan-National 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 Reagan-National to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Reagan-National to Ontario
Discover the top 3 airlines that operate flights from Reagan-National 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$108 | Average$409 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$148 | Average$389 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$262 | Average$372 | FlexibilityNo cancel fee | On-time71% |