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Niagara Falls

$92+ Cheap flights from Washington, D.C. (WAS) to Niagara Falls, ON, 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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YYZ
Mar 3 — Mar 101
Tue 3/3
Tue 3/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Niagara Falls are usually found in June or February, booked 77 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Washington, D.C. to Niagara Falls

Cheapest flights from Washington, D.C. to Niagara Falls
Explore the most affordable flight options available from Washington, D.C. to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 1, 2026.

This Booking.com deal was found by Cheapflights users on 1/30. 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 3/164:30 pm
IAD
-
YYZ
Nonstop1h 33m
Air Canada
Mon 3/236:55 pm
YYZ
-
IAD
Nonstop1h 31m
Air Canada
Deal found 1/30$186
This Booking.com deal was found by Cheapflights users on 1/30. 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.
Thu 2/266:59 am
DCA
-
YYZ
Nonstop1h 36m
Air Canada
Mon 3/26:10 pm
YYZ
-
DCA
Nonstop1h 35m
Air Canada
Deal found 1/30$209
This Booking.com deal was found by Cheapflights users on 1/30. 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 3/169:40 am
DCA
-
YYZ
Nonstop1h 37m
Air Canada
Mon 3/236:10 pm
YYZ
-
DCA
Nonstop1h 35m
Air Canada
Deal found 1/30$211
This Air Canada deal was found by Cheapflights users on 1/30. 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 3/139:00 am
IAD
-
YYZ
Nonstop1h 29m
Air Canada
Mon 3/166:55 pm
YYZ
-
IAD
Nonstop1h 31m
Air Canada
Deal found 1/30$212
This Air Canada deal was found by Cheapflights users on 1/30. 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 3/164:30 pm
IAD
-
YYZ
Nonstop1h 33m
Air Canada
Sat 3/214:10 pm
YYZ
-
IAD
1 stop5h 13m
Air Canada
Deal found 1/30$217
This Air Canada deal was found by Cheapflights users on 1/30. 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.
Thu 3/56:00 am
DCA
-
YYZ
1 stop4h 49m
Air Canada
Sun 3/87:20 am
YYZ
-
DCA
Nonstop1h 35m
Air Canada
Deal found 1/30$221
This Air Canada deal was found by Cheapflights users on 1/30. 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 2/235:46 pm
IAD
-
YYZ
1 stop6h 18m
Air Canada
Thu 2/262:15 pm
YYZ
-
IAD
Nonstop1h 34m
Air Canada
Deal found 1/30$221
This Air Canada deal was found by Cheapflights users on 1/29. 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.
Tue 3/318:15 am
IAD
-
YYZ
1 stop4h 55m
Air Canada
Fri 4/35:30 pm
YYZ
-
IAD
1 stop3h 48m
Air Canada
Deal found 1/29$222
This Air Canada deal was found by Cheapflights users on 1/30. 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.
Thu 4/28:15 am
IAD
-
YYZ
1 stop4h 52m
Air Canada
Mon 4/67:10 am
YYZ
-
IAD
1 stop4h 40m
Air Canada
Deal found 1/30$223
This Air Canada deal was found by Cheapflights users on 1/30. 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 3/136:00 am
DCA
-
YYZ
1 stop5h 40m
Air Canada
Fri 3/208:15 am
YYZ
-
DCA
1 stop4h 04m
Air Canada
Deal found 1/30$226
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:12 pm
BWI
-
YYZ
1 stop28h 08m
Multiple Airlines
Tue 4/143:40 pm
YYZ
-
BWI
1 stop8h 19m
Multiple Airlines
Deal found 1/29$235
This Mytrip deal was found by Cheapflights users on 1/30. 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 5/169:55 am
IAD
-
YYZ
Nonstop1h 27m
Air Canada
Mon 5/1812:00 pm
YYZ
-
IAD
1 stop6h 58m
Air Canada
Deal found 1/30$235

Find flight deals from Washington, D.C. to Niagara Falls

Keep the following information in mind while searching for Washington, D.C. to Niagara Falls flight deals. Data was last updated February 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$186
(Booking.com)

One-way from

$92
(ezTravel 易遊網)

Popular in

November

Cheapest in

June

Average price

$292
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 Falls
Search Deals
One-way flight from Washington, D.C. (WAS) to Niagara Falls
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($14 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 February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Niagara Falls 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 February 1, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Niagara Falls that are best for you.

Fly from

Washington, D.C.

Fly to

Niagara Falls

Route

Depart

Return

Price

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 6/12

6:59 am-8:31 am

Nonstop1h 32m

Toronto Pearson Intl

Mon 6/15

6:25 pm-7:58 pm

Nonstop1h 33m

$242

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 6/24

6:00 am-12:35 pm

1 stop6h 35m

Toronto Pearson Intl

Mon 6/29

6:25 pm-7:57 pm

Nonstop1h 32m

$251

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 2/19

9:40 am-11:17 am

Nonstop1h 37m

Toronto Pearson Intl

Thu 2/26

9:00 pm-10:35 pm

Nonstop1h 35m

$260

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Mon 3/2

2:58 pm-2:20 pm

1 stop23h 22m

Toronto Pearson Intl

Mon 3/9

3:40 pm-9:06 am

1 stop17h 26m

$263

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 4/7

9:40 am-5:17 pm

1 stop7h 37m

Toronto Pearson Intl

Tue 4/14

12:16 pm-4:34 pm

1 stop4h 18m

$282

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 3/13

1:55 pm-8:29 pm

1 stop6h 34m

Toronto Pearson Intl

Mon 3/16

10:19 am-4:26 pm

1 stop6h 07m

$282

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 4/6

5:40 pm-11:09 pm

1 stop5h 29m

Toronto Pearson Intl

Mon 4/13

12:16 pm-4:34 pm

1 stop4h 18m

$282

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 4/6

5:40 pm-11:09 pm

1 stop5h 29m

Toronto Pearson Intl

Tue 4/14

6:00 am-10:20 am

1 stop4h 20m

$282

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sun 3/1

6:00 am-11:15 am

1 stop5h 15m

Toronto Pearson Intl

Sun 3/8

6:00 am-10:20 am

1 stop4h 20m

$282

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 4/8

9:40 am-3:08 pm

1 stop5h 28m

Toronto Pearson Intl

Mon 4/13

2:15 pm-6:59 pm

1 stop4h 44m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 58 results
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Best time to book a flight from Washington, D.C. to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls 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 Falls

How far ahead should I book a flight from Washington, D.C. to Niagara Falls?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Niagara Falls. Price data was last updated on January 30, 2026.

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Niagara Falls, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Niagara Falls (average of $98). Flying from Washington, D.C. to Niagara Falls 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 NI4?

Find hourly flight availability from Washington, D.C. to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 1, 2026.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Niagara Falls 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 Falls?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Niagara Falls. Price data was last updated on November 25, 2025.

Travelers seeking maximum savings on their Washington, D.C. to Niagara Falls flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday 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 Falls

Explore weekly flight availability from Washington, D.C. to Niagara Falls. 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 February 1, 2026.

The most flights from WAS to NI4 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 (24 on average).

Reviews of airlines servicing Niagara Falls

Get insights into the airlines that provide service to Niagara Falls. 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 Falls. Reviews last updated February 1, 2026.
See what other customers who have flown with Porter Airlines, Delta, and United Airlines from Washington, D.C. to Niagara Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
412 reviews

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

7.9

Entertainment

6.9

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

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

7.9

Entertainment

6.9

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
8,128 reviews
Porter Airlines
7.9
Good
412 reviews

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

7.9

Entertainment

6.9

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
9,226 reviews
Porter Airlines
7.9
Good
412 reviews

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

7.9

Entertainment

6.9

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
11,211 reviews
Porter Airlines
7.9
Good
412 reviews

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

7.9

Entertainment

6.9

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
10,673 reviews
Porter Airlines
7.9
Good
412 reviews

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

7.9

Entertainment

6.9

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 Falls. 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 Falls?

    Departing from Washington, D.C. to Niagara Falls will take you 1h 33m. Airlines will cover a distance of 346 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 Falls 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 Falls?

    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 Falls.

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

    The top 3 most reliable airlines when flying from Washington, D.C. to Niagara Falls are ANA (68%), Copa Airlines (66%) and Republic Airways (66%).

  • What are the cheapest flights from Washington, D.C. to Niagara Falls?

    The cheapest flight price from Washington, D.C. to Niagara Falls is $88. On average you can expect to pay $942. The most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), can usually be booked for $219.

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

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

  • How can I find direct flights from Washington, D.C. to Niagara Falls?

    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 Falls.

  • Can I find deals for business class flights from Washington, D.C. to Niagara Falls?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Niagara Falls 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 Falls?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Niagara Falls

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

Discover the top 7 airlines that operate flights from Washington, D.C. to Niagara Falls. 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 February 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$54Average$229FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$108Average$321FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$131Average$316FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$176Average$245FlexibilityNo cancel feeOn-time50%
DeltaCheapest$182Average$322FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$262Average$372FlexibilityNo cancel feeOn-time71%
WestJetCheapest$349Average$495FlexibilityNo cancel feeOn-time60%

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