HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara-on-the-Lake

$79+ Cheap flights from Washington, D.C. (WAS) to Niagara-on-the-Lake, Canada

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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YYZ
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Niagara-on-the-Lake 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. to Niagara-on-the-Lake are usually found in February or March, booked 83 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Washington, D.C. to Niagara-on-the-Lake

Keep the following information in mind while searching for Washington, D.C. to Niagara-on-the-Lake flight deals. Data was last updated April 24, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$177
(Flightnetwork)

One-way from

$79
(Air Canada)

Popular in

November

Cheapest in

February

Average price

$295
Provider with most accurate pricing for Washington, D.C. (WAS)-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Toronto (YTO) flights.
Search Deals
From Washington, D.C. (WAS) to Niagara-on-the-Lake
Search Deals
One-way flight from Washington, D.C. (WAS) to Niagara-on-the-Lake
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Washington, D.C. to Niagara-on-the-Lake

Cheapest flights from Washington, D.C. to Niagara-on-the-Lake
Explore the most affordable flight options available from Washington, D.C. to Niagara-on-the-Lake. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/23. 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.
Tue 6/35:12 pmIAD - YYZ
Nonstop1h 53mAir Canada
Tue 6/177:47 pmYYZ - IAD
Nonstop1h 40mAir Canada
Deal found 4/23$177
This Mytrip deal was found by Cheapflights users on 4/23. 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.
Tue 6/312:55 pmDCA - YYZ
1 stop4h 05mAir Canada
Tue 6/175:00 pmYYZ - DCA
1 stop4h 53mAir Canada
Deal found 4/23$178
This United deal was found by Cheapflights users on 4/23. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2010:26 pmIAD - YYZ
1 stop10h 53mMultiple Airlines
Wed 5/2112:45 pmYYZ - IAD
Nonstop1h 34mMultiple Airlines
Deal found 4/23$225
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/159:40 amDCA - YYZ
1 stop7h 35mDelta
Mon 5/192:30 pmYYZ - DCA
1 stop8h 19mDelta
Deal found 4/23$233
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:00 amIAD - YYZ
1 stop5h 25mDelta
Mon 6/166:04 amYYZ - IAD
1 stop5h 55mDelta
Deal found 4/22$233
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1710:10 pmIAD - YYZ
1 stop12h 00mUnited Airlines
Sun 5/1812:45 pmYYZ - IAD
Nonstop1h 34mUnited Airlines
Deal found 4/23$252
This United deal was found by Cheapflights users on 4/23. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/243:00 pmDCA - YYZ
1 stop6h 45mMultiple Airlines
Wed 5/2811:00 amYYZ - DCA
1 stop4h 49mMultiple Airlines
Deal found 4/23$254
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:15 amBWI - YYZ
1 stop5h 25mDelta
Tue 5/2011:30 amYYZ - BWI
1 stop5h 43mDelta
Deal found 4/23$255
This Mytrip deal was found by Cheapflights users on 4/23. 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.
Sat 6/711:54 amBWI - YYZ
1 stop26h 11mMultiple Airlines
Sat 6/146:30 amYYZ - BWI
1 stop16h 27mMultiple Airlines
Deal found 4/23$261
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/148:40 pmDCA - YYZ
Nonstop1h 33mUnited Airlines
Fri 6/207:20 amYYZ - DCA
Nonstop1h 32mUnited Airlines
Deal found 4/23$266
This Kissandfly.com deal was found by Cheapflights users on 4/23. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/152:54 pmDCA - YYZ
Nonstop1h 50mBritish Airways
Wed 5/2111:05 amYYZ - DCA
Nonstop1h 35mBritish Airways
Deal found 4/23$269
This Kissandfly.com deal was found by Cheapflights users on 4/23. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:19 pmIAD - YYZ
Nonstop1h 35mLufthansa
Mon 5/196:15 amYYZ - IAD
Nonstop1h 40mLufthansa
Deal found 4/23$270

Cheapflights Fare Finder

Customize your flight search to find flights from Washington, D.C. to Niagara-on-the-Lake 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 April 24, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Niagara-on-the-Lake that are best for you.

Fly from

Washington, D.C.

Fly to

Niagara-on-the-Lake

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 6/3

5:12 pm-7:05 pm

Nonstop1h 53m

Toronto Pearson Intl

Tue 6/17

7:47 pm-9:27 pm

Nonstop1h 40m

$177

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 6/3

12:55 pm-5:00 pm

1 stop4h 05m

Toronto Pearson Intl

Tue 6/17

5:00 pm-9:53 pm

1 stop4h 53m

$178

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 5/20

10:26 pm-9:19 am

1 stop10h 53m

Toronto Pearson Intl

Wed 5/21

12:45 pm-2:19 pm

Nonstop1h 34m

$225

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 5/15

9:40 am-5:15 pm

1 stop7h 35m

Toronto Pearson Intl

Mon 5/19

2:30 pm-10:49 pm

1 stop8h 19m

$233

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 6/6

6:00 am-11:25 am

1 stop5h 25m

Toronto Pearson Intl

Thu 6/12

3:31 pm-10:55 pm

1 stop7h 24m

$233

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 5/17

10:10 pm-10:10 am

1 stop12h 00m

Toronto Pearson Intl

Sun 5/18

12:45 pm-2:19 pm

Nonstop1h 34m

$252

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 5/24

3:00 pm-9:45 pm

1 stop6h 45m

Toronto Pearson Intl

Tue 5/27

6:15 am-10:19 am

1 stop4h 04m

$254

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Wed 5/14

6:15 am-11:40 am

1 stop5h 25m

Toronto Pearson Intl

Tue 5/20

11:30 am-5:13 pm

1 stop5h 43m

$255

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sat 6/7

11:54 am-2:05 pm

1 stop26h 11m

Toronto Pearson Intl

Sat 6/14

6:30 am-10:57 pm

1 stop16h 27m

$261

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 6/14

8:40 pm-10:13 pm

Nonstop1h 33m

Toronto Pearson Intl

Fri 6/20

7:20 am-8:52 am

Nonstop1h 32m

$266

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 36 results
1
2
3
4

Best time to book a flight from Washington, D.C. to Niagara-on-the-Lake

Have a flexible travel schedule? Discover the best time to fly to Niagara-on-the-Lake from Washington, D.C. 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 Washington, D.C. to Niagara-on-the-Lake

How far ahead should I book a flight from Washington, D.C. to Niagara-on-the-Lake?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Niagara-on-the-Lake. Price data was last updated on April 18, 2025.

The best time to book flights from Washington, D.C. to Niagara-on-the-Lake is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Niagara-on-the-Lake?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Niagara-on-the-Lake (average of $243). Flying from Washington, D.C. to Niagara-on-the-Lake in July is currently the most expensive (average of $359). 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 WAS to N1A?

Find hourly flight availability from Washington, D.C. to Niagara-on-the-Lake. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

When flying from Washington, D.C. to Niagara-on-the-Lake, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Washington, D.C. to Niagara-on-the-Lake?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Niagara-on-the-Lake. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Niagara-on-the-Lake flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. to Niagara-on-the-Lake

Explore weekly flight availability from Washington, D.C. to Niagara-on-the-Lake. 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 April 24, 2025.

The most flights from WAS to N1A are scheduled on a Monday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

Rainfall in Niagara-on-the-Lake by month

Plan your trip to Niagara-on-the-Lake by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Niagara-on-the-Lake ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Niagara-on-the-Lake when rainfall is around 2.0 in.

Temperature in Niagara-on-the-Lake by month

Plan your trip to Niagara-on-the-Lake by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Niagara-on-the-Lake, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Niagara-on-the-Lake

Get insights into the airlines that provide service to Niagara-on-the-Lake. 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 Niagara-on-the-Lake. Reviews last updated April 24, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta and United Airlines from Washington, D.C. to Niagara-on-the-Lake to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
284 reviews

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Crew

8.8

Boarding

8.2

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
284 reviews
Porter Airlines
8.0
Very good
284 reviews

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Crew

8.8

Boarding

8.2

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Delta
8.0
Very good
7,920 reviews
Porter Airlines
8.0
Very good
284 reviews

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Crew

8.8

Boarding

8.2

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,685 reviews
Porter Airlines
8.0
Very good
284 reviews

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Crew

8.8

Boarding

8.2

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
284 reviews

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Crew

8.8

Boarding

8.2

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
WestJet
7.2
Good
2,816 reviews
Porter Airlines
8.0
Very good
284 reviews

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Crew

8.8

Boarding

8.2

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Niagara-on-the-Lake. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Washington, D.C. to Niagara-on-the-Lake one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $79. Delta flights start at $89 while deals on United Airlines start at $108 one-way.

  • What are the most popular routes from Washington, D.C. to Niagara-on-the-Lake?

    While some choose either Washington, D.C. Reagan-National - Toronto Pearson Intl or Baltimore/Washington - Toronto Pearson Intl, Washington, D.C. Dulles Intl - Toronto Pearson Intl is the most popular route from Washington, D.C. to Niagara-on-the-Lake.

  • What are the most reliable airlines from Washington, D.C. to Niagara-on-the-Lake?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. to Niagara-on-the-Lake on time: ANA (87%), Republic Airways (80%), Air Canada (80%).

  • What are the cheapest flights from Washington, D.C. to Niagara-on-the-Lake?

    The cheapest flight price from Washington, D.C. to Niagara-on-the-Lake is $94. On average you can expect to pay $927. The most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), can usually be booked for $206.

  • Can I find deals for flights from Washington, D.C. to Niagara-on-the-Lake that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Niagara-on-the-Lake flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Niagara-on-the-Lake?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Niagara-on-the-Lake.

  • Can I find deals for business class flights from Washington, D.C. to Niagara-on-the-Lake?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Niagara-on-the-Lake by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Niagara-on-the-Lake?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Niagara-on-the-Lake (average of $243). Flying from Washington, D.C. to Niagara-on-the-Lake in July is currently the most expensive (average of $359). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Niagara-on-the-Lake

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Pearson Intl flights
Reagan-National to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Reagan-National to Ottawa flights
Dulles Intl to Ottawa flights
Reagan-National to Toronto Island flights
Dulles Intl to Hamilton flights
Dulles Intl to London flights
Reagan-National to London flights
Dulles Intl to Sault Ste Marie flights
Dulles Intl to Sudbury flights
Reagan-National to Sault Ste Marie flights
Dulles Intl to Thunder Bay flights
Reagan-National to Thunder Bay flights
Reagan-National to Hamilton flights
Dulles Intl to Kingston flights
Dulles Intl to Timmins flights
Reagan-National to Windsor flights
Reagan-National to Kingston flights

Top 7 airlines flying from Washington, D.C. to Niagara-on-the-Lake

Discover the top 7 airlines that operate flights from Washington, D.C. to Niagara-on-the-Lake. 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$103Average$304FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$116Average$341FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$127Average$333FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$145Average$349FlexibilityNo cancel feeOn-time71%
Air TransatCheapest$169Average$310FlexibilityNo cancel feeOn-time50%
DeltaCheapest$242Average$412FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$278Average$455FlexibilityNo cancel feeOn-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.