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Niagara Falls

$102+ Cheap flights from Reagan-National (DCA) 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to Niagara Falls are usually found in March or April, booked 76 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Reagan-National to Niagara Falls

Cheapest flights from Reagan-National to Niagara Falls
Explore the most affordable flight options available from Reagan-National to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Air Canada deal was found by Cheapflights users on 12/3. 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 12/316:59 amDCA - YYZ
Nonstop1h 36mAir Canada
Tue 1/67:20 amYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 12/3$246
This American Airlines deal was found by Cheapflights users on 12/4. 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 12/1710:04 amDCA - YYZ
Nonstop1h 52mAmerican Airlines
Fri 12/1910:58 amYYZ - DCA
Nonstop1h 41mAmerican Airlines
Deal found 12/4$262
This Air Canada deal was found by Cheapflights users on 12/2. 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 12/308:40 pmDCA - YYZ
Nonstop1h 37mAir Canada
Wed 1/79:00 pmYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 12/2$264
This Air Canada deal was found by Cheapflights users on 12/3. 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 12/316:00 amDCA - YYZ
2 stops5h 40mAir Canada
Mon 1/57:10 amYYZ - DCA
1 stop5h 09mAir Canada
Deal found 12/3$265
This American Airlines deal was found by Cheapflights users on 12/4. 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 12/3110:10 amDCA - YYZ
Nonstop1h 41mAmerican Airlines
Mon 1/510:56 amYYZ - DCA
Nonstop1h 41mAmerican Airlines
Deal found 12/4$273
This Air Canada deal was found by Cheapflights users on 12/3. 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 12/176:00 amDCA - YYZ
1 stop6h 40mAir Canada
Mon 12/227:10 amYYZ - DCA
1 stop5h 09mAir Canada
Deal found 12/3$278
This American Airlines deal was found by Cheapflights users on 12/2. 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 12/1710:04 amDCA - YYZ
Nonstop1h 52mAmerican Airlines
Wed 12/245:19 pmYYZ - DCA
Nonstop1h 45mAmerican Airlines
Deal found 12/2$286

Find flight deals from Reagan-National to Niagara Falls

Keep the following information in mind while searching for Reagan-National to Niagara Falls flight deals. Data was last updated December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$222
(Booking.com)

One-way from

$102
(Air Canada)

Popular in

September

Cheapest in

March

Average price

$372
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.
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From Washington, D.C. Reagan-National to Niagara Falls
Search Deals
One-way flight from Washington, D.C. Reagan-National to Niagara Falls
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 December 4, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Niagara Falls that are best for you.

Fly from

Reagan-National

Fly to

Niagara Falls

Route

Depart

Return

Price

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 2/3

1:45 pm-5:53 pm

1 stop4h 08m

Toronto Pearson Intl

Sun 2/8

7:45 am-12:00 pm

1 stop4h 15m

$252

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sun 2/8

8:50 am-1:24 pm

1 stop4h 34m

Toronto Pearson Intl

Tue 2/17

12:11 pm-5:04 pm

1 stop4h 53m

$252

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 1/8

6:05 am-11:20 am

1 stop5h 15m

Toronto Pearson Intl

Tue 1/13

2:25 pm-6:50 pm

1 stop4h 25m

$252

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 1/14

6:05 am-11:20 am

1 stop5h 15m

Toronto Pearson Intl

Mon 1/19

6:06 am-10:13 am

1 stop4h 07m

$252

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 2/7

8:50 am-1:24 pm

1 stop4h 34m

Toronto Pearson Intl

Tue 2/17

5:10 pm-9:15 pm

1 stop4h 05m

$252

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 1/16

2:48 pm-4:35 pm

Nonstop1h 47m

Toronto Pearson Intl

Fri 1/23

5:15 pm-7:14 pm

Nonstop1h 59m

$264

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 2/7

6:15 pm-10:42 pm

1 stop4h 27m

Toronto Pearson Intl

Fri 2/20

2:25 pm-6:48 pm

1 stop4h 23m

$271

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 2/6

7:00 am-11:48 am

1 stop4h 48m

Toronto Pearson Intl

Mon 2/16

10:45 am-2:33 pm

1 stop3h 48m

$289

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 2/17

3:30 pm-9:21 pm

1 stop5h 51m

Toronto Pearson Intl

Tue 2/24

10:45 am-2:33 pm

1 stop3h 48m

$289

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 2/12

12:59 pm-5:49 pm

1 stop4h 50m

Toronto Pearson Intl

Thu 2/19

10:45 am-2:33 pm

1 stop3h 48m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 23 results
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Best time to book a flight from Reagan-National to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Reagan-National 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. Reagan-National Airport to Niagara Falls

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

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Niagara Falls. Price data was last updated on November 28, 2025.

The price you pay for your flight from Washington, D.C. Reagan-National Airport to Niagara Falls may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Niagara Falls (average of $106). Flying from Washington, D.C. Reagan-National Airport to Niagara Falls in October is currently the most expensive (average of $232). 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 DCA to NI4?

Find hourly flight availability from Reagan-National 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 December 4, 2025.

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Niagara Falls in the afternoon. Doing so could potentially save you 26% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Niagara Falls?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Niagara Falls. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Niagara Falls flight should consider departing on Friday afternoons 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. Reagan-National Airport to Niagara Falls

Explore weekly flight availability from Reagan-National 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 December 4, 2025.

The most flights from DCA to NI4 are scheduled on a Tuesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 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 December 4, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, United Airlines, and American Airlines from Washington, D.C. Reagan-National Airport to Niagara Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
395 reviews

Boarding

8.2

Crew

8.6

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

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
395 reviews
Porter Airlines
8.0
Very good
395 reviews

Boarding

8.2

Crew

8.6

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

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
9,066 reviews
Porter Airlines
8.0
Very good
395 reviews

Boarding

8.2

Crew

8.6

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

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
11,047 reviews
Porter Airlines
8.0
Very good
395 reviews

Boarding

8.2

Crew

8.6

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

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
10,500 reviews
Porter Airlines
8.0
Very good
395 reviews

Boarding

8.2

Crew

8.6

Food

7.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

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 Reagan-National 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. Reagan-National Airport to Niagara Falls?

    A quick flight from Washington, D.C. Reagan-National Airport to Niagara Falls can take about 4h 08m. Delta provides one of the quickest options available for as low as $252. The distance between Washington, D.C. Reagan-National Airport and Niagara Falls is about 359 mi.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Niagara Falls one-way?

    $94 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $102 and $108, respectively.

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

    Consider United Airlines (72%), Air Canada (71%) or Jazz (71%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Reagan-National Airport to Niagara Falls.

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

    While on average a flight from Washington, D.C. Reagan-National Airport to Niagara Falls is generally $434, our data shows the cheapest flight currently is $107. When looking at the most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), you can expect to pay $225 for that flight.

  • Can I find deals for flights from Reagan-National to Niagara Falls that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Niagara Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Niagara Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Niagara Falls.

  • Can I find deals for business class flights from Reagan-National to Niagara Falls?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Niagara Falls?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Niagara Falls (average of $106). Flying from Washington, D.C. Reagan-National Airport to Niagara Falls in October is currently the most expensive (average of $232). 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.

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Alternative routes for Reagan-National 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
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Reagan-National to Pierre Elliott Trudeau Intl flights
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Dulles Intl to Thunder Bay flights
Reagan-National to Sault Ste Marie flights
Reagan-National to Thunder Bay flights
Baltimore to Sault Ste Marie flights
Baltimore to Thunder Bay flights
Reagan-National to Windsor flights
Reagan-National to Hamilton flights
Baltimore to North Bay flights
Dulles Intl to Timmins flights
Dulles Intl to Sudbury flights
Baltimore to Windsor flights
Dulles Intl to Hamilton flights
Dulles Intl to Kingston flights
Reagan-National to Kingston flights
Baltimore to Kingston flights

Top 4 airlines flying from Reagan-National to Niagara Falls

Discover the top 4 airlines that operate flights from Reagan-National 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$103Average$399FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$127Average$316FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$196Average$342FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$261Average$376FlexibilityNo cancel feeOn-time71%

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