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Niagara Falls

$71+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YYZ
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Niagara Falls 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 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 January 2, 2026.

This American Airlines deal was found by Cheapflights users on 12/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amDCA - YYZ
1 stop12h 07mAmerican Airlines
Tue 1/612:30 pmYYZ - DCA
1 stop9h 00mAmerican Airlines
Deal found 12/30$638
This Mytrip deal was found by Cheapflights users on 12/30. 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.
Tue 12/301:25 amIAD - YYZ
3 stops21h 55mMultiple Airlines
Tue 1/68:30 pmYYZ - IAD
3 stops19h 43mMultiple Airlines
Deal found 12/30$659
This Kiwi.com deal was found by Cheapflights users on 12/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:58 pmIAD - YYZ
1 stop11h 01mMultiple Airlines
Sun 1/47:10 amYYZ - IAD
2 stops32h 00mMultiple Airlines
Deal found 12/30$734
This Kiwi.com deal was found by Cheapflights users on 12/31. 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 12/316:18 pmBWI - YYZ
1 stop20h 35mMultiple Airlines
Tue 1/63:40 pmYYZ - BWI
1 stop17h 55mMultiple Airlines
Deal found 12/31$758
This Air Canada deal was found by Cheapflights users on 12/30. 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.
Wed 12/3110:06 pmIAD - YYZ
Nonstop1h 40mAir Canada
Tue 1/64:10 pmYYZ - IAD
1 stop5h 15mAir Canada
Deal found 12/30$796
This Kiwi.com deal was found by Cheapflights users on 12/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amIAD - YYZ
1 stop5h 08mWestJet
Sun 1/46:10 amYYZ - IAD
1 stop6h 03mWestJet
Deal found 12/30$812
This Kiwi.com deal was found by Cheapflights users on 12/31. 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 12/316:18 pmBWI - YYZ
1 stop20h 35mMultiple Airlines
Sun 1/47:10 amYYZ - BWI
1 stop24h 12mMultiple Airlines
Deal found 12/31$830
This FlightHub deal was found by Cheapflights users on 12/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amIAD - YYZ
1 stop5h 08mWestJet
Tue 1/67:45 amYYZ - IAD
1 stop4h 04mWestJet
Deal found 12/30$865
This Kiwi.com deal was found by Cheapflights users on 12/31. 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 12/315:35 pmDCA - YYZ
1 stop17h 44mWestJet
Tue 1/66:06 amYYZ - DCA
1 stop4h 07mWestJet
Deal found 12/31$879
This FlightHub deal was found by Cheapflights users on 12/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:38 pmDCA - YYZ
1 stop22h 30mWestJet
Sat 1/35:10 pmYYZ - DCA
1 stop20h 52mWestJet
Deal found 12/30$897
This FlightHub deal was found by Cheapflights users on 12/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:58 pmIAD - YYZ
1 stop22h 10mWestJet
Sat 1/35:10 pmYYZ - IAD
1 stop6h 47mWestJet
Deal found 12/30$897
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Wed 12/315:10 pmIAD - YYZ
1 stop14h 38mUnited Airlines
Tue 1/65:25 pmYYZ - IAD
1 stop14h 05mUnited Airlines
Deal found 12/31$913

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 January 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$214
(Flightnetwork)

One-way from

$71
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$315
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. 6% potential increase in price ($22 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 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 January 2, 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

Tue 2/10

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Tue 2/10

9:00 pm-10:35 pm

Nonstop1h 35m

$228

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 2/19

8:40 pm-10:15 pm

Nonstop1h 35m

Toronto Pearson Intl

Sat 2/21

7:20 am-8:55 am

Nonstop1h 35m

$228

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 2/2

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Mon 2/2

6:25 pm-7:59 pm

Nonstop1h 34m

$228

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 3/21

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Mon 3/23

9:00 pm-10:35 pm

Nonstop1h 35m

$228

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 1/23

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Sun 1/25

8:15 am-12:19 pm

1 stop4h 04m

$234

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 2/21

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Sun 2/22

7:10 am-12:19 pm

1 stop5h 09m

$234

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 1/13

12:55 pm-7:26 pm

1 stop6h 31m

Toronto Pearson Intl

Sat 1/17

4:30 pm-6:05 pm

Nonstop1h 35m

$234

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 1/24

8:40 pm-10:17 pm

Nonstop1h 37m

Toronto Pearson Intl

Sun 1/25

7:10 am-12:19 pm

1 stop5h 09m

$236

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 1/16

12:55 pm-7:26 pm

1 stop6h 31m

Toronto Pearson Intl

Sun 1/18

7:10 am-12:19 pm

1 stop5h 09m

$239

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 1/22

10:12 am-11:59 am

Nonstop1h 47m

Toronto Pearson Intl

Tue 1/27

5:15 pm-7:14 pm

Nonstop1h 59m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 59 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 December 26, 2025.

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 88 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 $94). Flying from Washington, D.C. to Niagara Falls in August is currently the most expensive (average of $171). 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 January 2, 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 51% 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 January 2, 2026.

The most flights from WAS to NI4 are scheduled on a Monday (30 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 on average).

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

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 January 2, 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
8.0
Very good
403 reviews

Food

7.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
8.0
Very good
403 reviews
Porter Airlines
8.0
Very good
403 reviews

Food

7.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
8,017 reviews
Porter Airlines
8.0
Very good
403 reviews

Food

7.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
9,132 reviews
Porter Airlines
8.0
Very good
403 reviews

Food

7.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
11,072 reviews
Porter Airlines
8.0
Very good
403 reviews

Food

7.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
10,571 reviews
Porter Airlines
8.0
Very good
403 reviews

Food

7.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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 36m. Airlines will cover a distance of 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 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 $91. 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. 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 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 (74%), Jazz (73%) and United Airlines (71%).

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

    The cheapest flight price from Washington, D.C. to Niagara Falls is $107. On average you can expect to pay $664. The most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), can usually be booked for $227.

  • 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 $94). Flying from Washington, D.C. to Niagara Falls in August is currently the most expensive (average of $171). 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.
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 Toronto Island flights
Dulles Intl to Ottawa flights
Reagan-National to Ottawa flights
Dulles Intl to Thunder Bay flights
Reagan-National to Thunder Bay flights
Dulles Intl to Sudbury flights
Dulles Intl to London flights
Reagan-National to London flights
Dulles Intl to Hamilton flights
Dulles Intl to Sault Ste Marie flights
Reagan-National to Windsor flights
Dulles Intl to Kingston flights
Dulles Intl to Timmins flights
Reagan-National to Sault Ste Marie 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 January 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$54Average$300FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$127Average$323FlexibilityNo cancel feeOn-time69%
Air TransatCheapest$176Average$245FlexibilityNo cancel feeOn-time50%
Air CanadaCheapest$187Average$318FlexibilityNo cancel feeOn-time67%
DeltaCheapest$255Average$329FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$261Average$376FlexibilityNo cancel feeOn-time71%
WestJetCheapest$349Average$493FlexibilityNo cancel feeOn-time60%

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