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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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
May 17 — May 241
Sun 5/17
Sun 5/24
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 February or May, booked 79 days in advance, depart on a Friday or Saturday and return on a Wednesday

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 April 17, 2026.

This Mytrip deal was found by Cheapflights users on 4/17. 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.
Mon 5/258:40 pm
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Sat 5/308:55 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 4/17$202
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Sun 5/316:00 am
DCA
-
YYZ
1 stop4h 38m
Air Canada
Sun 6/78:10 am
YYZ
-
DCA
1 stop3h 51m
Air Canada
Deal found 4/16$207
This Flightnetwork deal was found by Cheapflights users on 4/16. 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.
Sat 5/306:59 am
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Mon 6/18:55 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 4/16$208
This Booking.com deal was found by Cheapflights users on 4/15. 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 5/286:59 am
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Mon 6/18:55 pm
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 4/15$210

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 April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$202
(Mytrip)

One-way from

$102
(Air Canada)

Popular in

September

Cheapest in

February

Average price

$316
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. 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. 12% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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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 April 17, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 5/23

12:00 pm-5:59 pm

1 stop5h 59m

Toronto Pearson Intl

Mon 5/25

6:00 am-10:17 am

1 stop4h 17m

$302

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 5/12

9:39 am-5:21 pm

1 stop7h 42m

Toronto Pearson Intl

Tue 5/19

6:37 pm-11:24 pm

1 stop4h 47m

$302

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 5/21

6:05 am-1:30 pm

1 stop7h 25m

Toronto Pearson Intl

Sun 5/24

6:00 am-12:48 pm

1 stop6h 48m

$302

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 5/21

6:05 am-1:30 pm

1 stop7h 25m

Toronto Pearson Intl

Mon 5/25

6:00 am-10:17 am

1 stop4h 17m

$303

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 5/28

1:30 pm-5:55 pm

1 stop4h 25m

Toronto Pearson Intl

Sun 5/31

5:05 pm-10:54 pm

1 stop5h 49m

$303

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 5/11

7:40 pm-11:41 pm

1 stop4h 01m

Toronto Pearson Intl

Mon 5/18

5:05 pm-10:54 pm

1 stop5h 49m

$308
Quickest round-trip

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sun 5/17

7:30 am-12:35 pm

1 stop5h 05m

Toronto Pearson Intl

Wed 5/27

6:25 pm-7:58 pm

Nonstop1h 33m

$309

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sun 5/17

7:30 am-12:35 pm

1 stop5h 05m

Toronto Pearson Intl

Thu 5/21

6:25 pm-7:58 pm

Nonstop1h 33m

$309

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 6/10

6:00 am-1:39 pm

1 stop7h 39m

Toronto Pearson Intl

Wed 7/29

6:00 am-10:15 am

1 stop4h 15m

$331

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 6/10

9:39 am-5:24 pm

1 stop7h 45m

Toronto Pearson Intl

Mon 7/27

2:24 pm-10:55 pm

1 stop8h 31m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 April 10, 2026.

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 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 April 17, 2026.

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Niagara Falls in the evening. Doing so could potentially save you 30% on the flight price compared to flying in the afternoon, 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 April 11, 2026.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Niagara Falls flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday at noon 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 April 17, 2026.

The most flights from DCA to NI4 are scheduled on a Wednesday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport 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 April 17, 2026.
Peruse reviews from past customers who have flown with Porter Airlines,United Airlines, andAmerican 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
435 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
435 reviews
Porter Airlines
8.0
Very good
435 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,603 reviews
Porter Airlines
8.0
Very good
435 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
American Airlines
7.1
Good
11,596 reviews
Porter Airlines
8.0
Very good
435 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,932 reviews
Porter Airlines
8.0
Very good
435 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 01m. Delta provides one of the quickest options available for as low as $271. 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?

    $88 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 $106 and $112, respectively.

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

    Consider British Airways (69%), American Airlines (69%) or Porter Airlines (69%) 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 $1,542, our data shows the cheapest flight currently is $123. When looking at the most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), you can expect to pay $241 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.

See more FAQs

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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 April 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$135Average$284FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$183Average$517FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$195Average$351FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$264Average$373FlexibilityNo cancel feeOn-time71%

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