$139 Find Cheap Flights from Ontario to District of Columbia

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to District of Columbia

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonJanuary
Cheapest flight$139
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Toronto Pearson Airport to Reagan Washington National Airport

Flights from Ontario to District of Columbia: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Ontario to District of Columbia 
KaseyFlew with Air Canada
YYZ
-
IAD
Jun 2025
Come way early as US customs line up eats up your time
Verified travelerFlew with Air Canada
YYZ
-
IAD
Dec 2024
Get on a regional sized (smaller than Boeing 737 or Airbus A320) jet if you can, they are older and have more legroom than newer aircraft.
Verified travelerFlew with United Airlines
YYZ
-
IAD
Nov 2024
Do not carry bigger the specified sized bags for cabin baggage. Only one carry on ba
Verified travelerFlew with Air Canada
YYZ
-
IAD
Aug 2024
Check the departure board carefully when you get to the airport.

FAQs for booking flights from Ontario to District of Columbia

  • How does KAYAK find such low prices on flights from Ontario to District of Columbia?

    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 Ontario to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to District of Columbia 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 Ontario to District of Columbia?

    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 Ontario to District of Columbia 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 Ontario to District of Columbia?

    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 Ontario to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to District of Columbia?

    Ontario and District of Columbia are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (157 flights per week), Air Canada (139 flights per week), and Porter Airlines (31 flights per week).

  • How many airports are there in District of Columbia?

    There are 2 airports in District of Columbia. The busiest airport is Washington Dulles Airport (IAD), with 66% of all flights arriving there.

  • Which is the cheapest airport to fly into in District of Columbia?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in District of Columbia is Washington, D.C. Reagan-National Airport (DCA), with an average flight price of $262.

  • What is the cheapest day to fly to District of Columbia?

    Based on KAYAK data, the cheapest day to fly to District of Columbia is Wednesday where round-trip tickets can be as cheap as $334. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $638 on average.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the evening, when round-trip flights cost $345 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $581.

  • What is the cheapest flight to District of Columbia?

    The cheapest ticket to District of Columbia from Ontario found in the last 72 hours was to Washington, D.C. Reagan-National Airport, at $119 round-trip. The most popular route is Ottawa (YOW) to Washington, D.C. Reagan-National Airport (DCA) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $119.

  • What is the cheapest month to fly from Ontario to District of Columbia?

    The cheapest month for flights from Ontario to District of Columbia is January, when tickets cost $260 (return) on average. On the other hand, the most expensive months are October and July, when the average cost of round-trip tickets is $617 and $491 respectively.

  • How far in advance should I book a flight from Ontario to District of Columbia?

    To get a below average price on the flight from Ontario to District of Columbia, you should book around 3 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

  • How many cities have direct flights to District of Columbia?

    From Ontario, there are direct flights to District of Columbia from 2 cities. The city with the most direct flights is Toronto, with 314 direct flights each week.

  • How many direct flights to District of Columbia are there each day?

    There are around 58 direct flights from within Ontario to District of Columbia every day. Most flights (43%) depart in the morning.

  • How many direct flights to District of Columbia are there each week?

    Each week there are around 406 direct flights from within Ontario to District of Columbia. The most common day for departures is Friday, with 16% of flights taking off on this day.

  • How long is the flight to District of Columbia?

    An average nonstop flight from Ontario to District of Columbia takes 2h 29m, covering a distance of 397 miles. The shortest route is Toronto Pearson Intl Airport (YYZ) to Washington, D.C. Dulles Intl Airport (IAD) with an average flight time of 1h 25m.

  • How many long-haul flights are there to District of Columbia each week?

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to District of Columbia. Instead, there are 406 short-haul flights (up to 3 hour flight duration), with the most arriving from Toronto.

  • What is the most popular destination in District of Columbia?

    Based on KAYAK flight searches, the most popular destination is Washington, D.C. (100% of total searches to District of Columbia).

Reviews of the top 4 airlines serving from Ontario to District of Columbia

 
Need help choosing which airline to fly with from Ontario to District of Columbia? 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 435 reviews
7.0Entertainment
7.6Food
8.6Crew
8.0Comfort
8.2Boarding
Airline reviews

I didn’t receive any help when they messed up and wasn’t honest and the supervisor did absolutely nothing to help me so I had to buy another ticket at $537

10.0 ExcellentAnonymous, Apr 2026
YHM - YHZ
Read more Porter Airlines reviews

I didn’t receive any help when they messed up and wasn’t honest and the supervisor did absolutely nothing to help me so I had to buy another ticket at $537

Even tho the flight was a bit delayed the team was apologetic. Everyone was friendly and efficient.

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.

Due to a known technical error that Porter has not fixed in over a year, I was unable to check in the children on my reservation online and had to do it at the airport. Upon check in, there were no seats together, which was an issue as we had young children. The gate agent did manage to seat us together by moving other passengers, which was appreciated, but the other passengers were never informed, leading to confusion and delay upon boarding. The flight was over an hour late; no explanation or apology was ever issued. The bags on Porter take a long time to arrive--over half an hour at Hamilton on my inbound flight, and not much better on my return to Edmonton.

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

Organization and the adjusted times but the snacks could be of a bigger portion

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

Poor landing as we overshot the runway and had to re land the plane. Lost both of my luggage not found as of yet. Had to pay extra money for my luggage in USD, now great my luggage is gone. Will not fly with Porter again.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Meals were not so good. Snack between the meals was very bad. Like Japan Airlines, they could eliminate the snack and make the second meal much better.

Flight itself was not bad at all. However: my checked bag (checked in Calgary) did not make it onto this flight as I found out after I landed at EWR. I still don't have it but it appears that it is on its way to me.

Flight and attendance were very good we had 2 hour delay that took the shine of it

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

The flight was delayed, but not for weather. We landed over 3hrs later than planned.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

My flight was delayed more than once, but Air Canada updated us regularly. Friends on other airlines had much worse experiences.

Terrible…. Reported missing luggage’s with injectable meds that needed refrigeration. Yet, delivery could not be expedited. Luggage’s were delivered 5 days after arrival. The meds were useless as ice pack had melted. So disappointed!!!

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Everything you need to know for your flight to District of Columbia

Cabin class types available on flights to Ontario

Cabin classes available on flights to Ontario. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.