$110 Find Cheap Flights from Reagan Washington National Airport to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Ontario departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Reagan-National to Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ottawa
Ottawanonstop$375
Thunder Bay
Thunder Bay1 stop$539
London
London1 stop$832
Sault Ste Marie
Sault Ste Marie1 stop$530
Ottawa
Ottawanonstop$375
Thunder Bay
Thunder Bay1 stop$539
London
London1 stop$832
Sault Ste Marie
Sault Ste Marie1 stop$530

Book Cheap Reagan-National to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Ontario

Mon, Sep 7 - Mon, Sep 14
Air Canada Logo
6:59 am - 8:35 am
DCA
-
YYZ
1h 36mnonstop
Air Canada Logo
6:25 pm - 7:59 pm
YYZ
-
DCA
1h 34mnonstop
$223Air Canada
Sat, Aug 29 - Sun, Aug 30
Air Canada Logo
12:40 pm - 6:20 pm
DCA
-
YTZ
5h 40m
1 stop
Air Canada Logo
8:20 am - 12:00 pm
YTZ
-
DCA
3h 40m
1 stop
$224Air Canada
Wed, Aug 19 - Wed, Aug 19
Air Canada Logo
12:40 pm - 5:08 pm
DCA
-
YYZ
4h 28m
1 stop
Air Canada Logo
8:55 pm - 10:31 pm
YYZ
-
DCA
1h 36mnonstop
$226Air Canada
Sun, Sep 6 - Sun, Sep 13
Air Canada Logo
12:55 pm - 6:20 pm
DCA
-
YTZ
5h 25m
1 stop
Air Canada Logo
8:20 am - 12:14 pm
YTZ
-
DCA
3h 54m
1 stop
$228Air Canada
Wed, Aug 19 - Wed, Aug 19
Air Canada Logo
6:59 am - 8:35 am
DCA
-
YYZ
1h 36mnonstop
Air Canada Logo
4:40 pm - 6:12 pm
YYZ
-
DCA
1h 32mnonstop
$231Air Canada
Wed, Aug 5 - Tue, Aug 11
Air Canada Logo
6:00 am - 11:51 am
DCA
-
YTZ
5h 51m
1 stop
Air Canada Logo
8:20 am - 12:00 pm
YTZ
-
DCA
3h 40m
1 stop
$232Air Canada
Thu, Sep 10 - Sun, Sep 13
Multiple Airlines Logo
6:59 am - 4:45 pm
DCA
-
YUL
9h 46m
1 stop
Multiple Airlines Logo
8:30 am - 10:20 am
YUL
-
DCA
1h 50mnonstop
$345Multiple Airlines
Tue, Sep 22 - Wed, Sep 30
Porter Airlines Logo
3:00 pm - 10:33 pm
DCA
-
YQT
7h 33m
1 stop
Porter Airlines Logo
6:30 am - 7:15 pm
YQT
-
DCA
12h 45m
1 stop
$539Porter Airlines
Tue, Sep 22 - Sat, Sep 26
Porter Airlines Logo
3:00 pm - 10:33 pm
DCA
-
YQT
7h 33m
1 stop
Porter Airlines Logo
6:30 am - 7:15 pm
YQT
-
DCA
12h 45m
1 stop
$544Porter Airlines
Tue, Sep 22 - Sat, Sep 26
Porter Airlines Logo
3:00 pm - 10:33 pm
DCA
-
YQT
7h 33m
1 stop
Porter Airlines Logo
6:30 am - 7:15 pm
YQT
-
DCA
12h 45m
1 stop
$562Porter Airlines
Booking Insights

KAYAK's insights & trends for Reagan-National to Ontario flights

Get data-powered insights and trends into flights from Reagan-National to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Reagan-National Airport to Region of Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Reagan-National Airport to Region of Ontario departing in September.

Flight prices are below average for this route right now.

Flights to Region of Ontario from Washington, D.C. Reagan-National Airport usually cost between $344 and $478 in September.
The lowest price found in the past 5 days was $223 on Air Canada (Sep 7-Sep 14).

What is the cheapest Washington, D.C. Reagan-National Airport to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from Washington, D.C. Reagan-National Airport found in the last 5 days was to Ottawa, at $187 round-trip. The most popular route is from Washington, D.C. Reagan-National Airport (DCA) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 5 days was $243.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights from Washington, D.C. Reagan-National Airport to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost $413 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is $551.

Can I save money by flying with a layover from Washington, D.C. Reagan-National Airport to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $392, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Ontario is April, when tickets cost $313 (return) on average. On the other hand, the most expensive months are October and July, when the average cost of round-trip tickets is $427 and $423 respectively.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to Ontario?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to Ontario clicked on KAYAK for each day over the last 12 months.

For Reagan Washington National Airport to Ontario, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from Ontario back to Reagan Washington National Airport, the best deals are generally found on Wednesday, with Monday being the most expensive.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to Ontario, you should book around 3 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

December

Cheapest flight

$110
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Reagan Washington National Airport to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Reagan Washington National Airport to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Reagan Washington National Airport to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ontario

  • Looking for a cheap flight? 25% of our users found tickets from Reagan Washington National Airport to the following destinations at these prices or less: Montreal $230 one-way - $404 round-trip; Toronto $199 one-way - $343 round-trip

Reviews of the top 4 airlines serving from Reagan-National to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 448 reviews
6.9Entertainment
8.2Boarding
8.6Crew
7.5Food
8.0Comfort
Airline reviews

A few improvements: 1. No signages at the airport that the porter airline was a codeshare and i could check-in at American counter. 2. Crew at the gate said they couldn't change my reward to Alaska - despite that being done previously 3. Despite there being many open seats, i was assigned a seat at the very back near lavatory, last row. Fortunately, the pilot wanted more people moved up so the flight attendants moved me up. It seemed very odd to have been stuck in last row with very few people nearby..

6.0 GoodHarsh, Apr 2026
JFK - YYZ
Read more Porter Airlines reviews

A few improvements: 1. No signages at the airport that the porter airline was a codeshare and i could check-in at American counter. 2. Crew at the gate said they couldn't change my reward to Alaska - despite that being done previously 3. Despite there being many open seats, i was assigned a seat at the very back near lavatory, last row. Fortunately, the pilot wanted more people moved up so the flight attendants moved me up. It seemed very odd to have been stuck in last row with very few people nearby..

The flight booking code given by Kayak was not the correct one used by the airline. I had to call to get the correct one. It was never sent to me. Totally unacceptable!

Much roomer than air Canada! Great flight for the price. No complaints

As a first time flyer with Porter I was happy with the service and comfort of the airline.

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

I like it, but the food isn't good. They need to offer more simple things. This bowls that have so many things your don't know what your are eating. The milenials like it, no the rest. And last but not least, they allowed somebody have a huge dog, vey agressive and fidgety in the flight. That's horrible. No animals should be allowed inside the airplane, what about allergies, etc

The flight was half empty yet they charged me $50 for a basic carry on! I saw how passengers of different colors were treated differently.

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

Three hours on the tarmac with almost zero communication from the cockpit. Not when offered a water in the interim. In my 67 years of flying all over the world the worst experience ever. The plane was half empty, however had to pay for seats to sit next to my girlfriend. Extra to take a carry on. I would never fly Porter again even for free.

Porter is what Westjet used to be. Staff were great

1. Everything was satisfactory concerning the flight. 2. Can't think of what could be better right now.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Never nice, United Express partners always do an amazing job.

Shout out to the check in counter staff in Richmond. So pleasant and helpful with ticketing and seat selection.

The ride was good but no food ot entertainment hence, it was just over an hour flight.

The flight was on time and the crew were great.

Patrons with larger bags were asked to check the bags when boarding. Seems like the most effective, and least costly way, way to successfully use the cramped space.

They cancelled our flight two times after rebooking us for a later flight. We never got on the plane. We found another solution by driving.

Mostly great. Only issue was with the WiFi. Halfway through the flight it was spotty and I was unable to work as I planned. This impacted my work products as I am traveling for business and it was an unexpected hindrance which was inconvenient. Flight here was amazing. For a 5 hour flight something more than a Biscoff would be nice but I’m just swinging at windmills I guess…

Delayed boarding because a flight attendant couldn't find the gate...sat on the plane for over an hour at the gate because AA couldn't get one of the planes behind us to move

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

The upgraded seats on the smaller flights I guess is a toss up if you get a full meal. We paid less for the ticket on the way there and got a full meal where we got a snack and drink on the way home. The lounge was also in the other terminal too. No entertainment on the seat and no wifi on the plane.

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Check in agent was very helpful and polite. He helped me board the earlier flight back home instead of waiting 2 hours at the airport for the next flight

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

The flight was delayed at the last moment quoting an absurd weather reason. This delay led to an issue with my connecting flight. I was made to run (literary) from this flight to the next one ( as they preponed departure. I was still in my DCA to YYZ flight when the boarding started for the next connecting flight. After my sprint to get the connecting flight, found that no place for my carry on. Had to sit for 3 hours with my back-pack on my lap , it was the most uncomfortable and inconvenient journey with little to no empathy shown by cabin crew in both flights. Another poor show from Air Canada!! Cant help because of lack of options !!

Made me check my carry on despite there being dozens of empty bins when I boarded which significantly inconvenienced me.

The people are great! The trip to Japan is simply never ending!!! Not the problem of the airlines, though.

The walk from landing in Toronto to the flight to Winnipeg took us nearly 45 minutes. There should have been some type of transport available.

When I reached Toronto I need a wheelchair and there no wheelchair I walk for a long period of time without any and my back was hurting

Flight was fine, layover was too long. Ten hours! They should have put us on a star alliance partner flight.

Everything you need to know for your flight from Reagan-National to Ontario

Information on your arrival and departure airports