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Niagara-on-the-Lake

$90+ 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YYZ
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Niagara-on-the-Lake are usually found in February or June, booked 88 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

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 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$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$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$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$198
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$200
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$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$203
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:11 pm
IAD
-
YYZ
1 stop4h 34m
Air Canada
Sat 3/76:55 pm
YYZ
-
IAD
Nonstop1h 31m
Air Canada
Deal found 1/28$204
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.
Tue 3/316:00 am
DCA
-
YYZ
2 stops7h 10m
Air Canada
Sat 4/47:20 am
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 1/28$210
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.
Mon 2/166:59 am
DCA
-
YYZ
Nonstop1h 36m
Air Canada
Wed 2/189:00 pm
YYZ
-
DCA
Nonstop1h 35m
Air Canada
Deal found 1/26$211
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.
Fri 5/88:40 pm
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Sun 5/106:25 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 1/27$212
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.
Sat 3/144:30 pm
IAD
-
YYZ
Nonstop1h 33m
Air Canada
Mon 3/166:55 pm
YYZ
-
IAD
Nonstop1h 31m
Air Canada
Deal found 1/27$212

Find 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 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

February

Average price

$324
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. 5% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

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

$217

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

$217

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Tue 2/24

7:54 pm-12:14 am

1 stop28h 20m

Toronto Pearson Intl

Tue 3/3

3:40 pm-9:06 am

1 stop17h 26m

$235

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

$257

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

$257

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 4/15

9:40 am-11:14 am

Nonstop1h 34m

Toronto Pearson Intl

Sun 4/19

7:10 am-12:01 pm

1 stop4h 51m

$262

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 2/24

11:05 am-3:40 pm

1 stop4h 35m

Toronto Pearson Intl

Mon 3/2

8:15 am-12:19 pm

1 stop4h 04m

$270

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

Sun 5/3

7:20 am-8:53 am

Nonstop1h 33m

$272

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 3/1

8:15 am-4:02 pm

1 stop7h 47m

Toronto Pearson Intl

Sun 3/1

7:40 pm-9:21 pm

Nonstop1h 41m

$274

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 4/3

2:59 pm-4:41 pm

Nonstop1h 42m

Toronto Pearson Intl

Mon 4/6

5:22 pm-7:12 pm

Nonstop1h 50m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 60 results
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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 January 23, 2026.

The best time to book flights from Washington, D.C. to Niagara-on-the-Lake is 88 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, March is the cheapest month in which you can book a flight from Washington, D.C. to Niagara-on-the-Lake (average of $98). Flying from Washington, D.C. to Niagara-on-the-Lake 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 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 January 29, 2026.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Niagara-on-the-Lake at noon. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight in the evening.

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 November 25, 2025.

Travelers seeking maximum savings on their Washington, D.C. to Niagara-on-the-Lake 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 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 January 29, 2026.

The most flights from WAS to N1A are scheduled on a Friday (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (22 on average).

How much does it cost to fly round-trip from Washington, D.C. to Niagara-on-the-Lake?

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 January 29, 2026.
Read reviews from past customers who have flown Porter Airlines, Delta, and United Airlines from Washington, D.C. to Niagara-on-the-Lake. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
412 reviews

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Delta
7.9
Good
8,127 reviews
Porter Airlines
7.9
Good
412 reviews

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,215 reviews
Porter Airlines
7.9
Good
412 reviews

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
American Airlines
7.2
Good
11,206 reviews
Porter Airlines
7.9
Good
412 reviews

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,667 reviews
Porter Airlines
7.9
Good
412 reviews

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Boarding

8.2

Food

7.5

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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.

  • How long is the flight from Washington, D.C. to Niagara-on-the-Lake?

    Airlines like Air Canada, American Airlines, and United Airlines fly from Washington, D.C. to Niagara-on-the-Lake in about 1h 43m. The time it takes to get you to your destination can typically vary by up to 6h 04m. The distance from Washington, D.C. to Niagara-on-the-Lake is about 359 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $86. American Airlines flights start at $106 while deals on United Airlines start at $106 one-way.

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

    While some choose either Washington, D.C. Dulles Intl - Toronto Pearson Intl or Baltimore/Washington - Toronto Pearson Intl, Washington, D.C. Reagan-National - 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 (68%), Copa Airlines (66%), Republic Airways (66%).

  • 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 $88. On average you can expect to pay $1,125. The most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), can usually be booked for $225.

  • 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, March is the cheapest month in which you can book a flight from Washington, D.C. to Niagara-on-the-Lake (average of $98). Flying from Washington, D.C. to Niagara-on-the-Lake 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.

See more FAQs

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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.
Reagan-National to Pearson Intl flights
Dulles Intl 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 Toronto Island flights
Dulles Intl to Ottawa flights
Reagan-National to Ottawa flights
Reagan-National to Thunder Bay flights
Dulles Intl to London flights
Reagan-National to London flights
Dulles Intl to Thunder Bay flights
Dulles Intl to Sudbury flights
Dulles Intl to Timmins flights
Dulles Intl to Sault Ste Marie flights
Dulles Intl to Hamilton flights
Reagan-National to Windsor flights
Reagan-National to Sault Ste Marie flights
Dulles Intl to Kingston flights
Reagan-National to Hamilton 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$54Average$230FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$108Average$321FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$121Average$315FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$176Average$245FlexibilityNo cancel feeOn-time50%
DeltaCheapest$182Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$262Average$372FlexibilityNo cancel feeOn-time71%
WestJetCheapest$349Average$495FlexibilityNo cancel feeOn-time60%

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