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Cheap flights from Niagara Falls to Washington, D.C. Dulles Intl Airport from C$ 179

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — IAD
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from Niagara Falls to Washington, D.C. Dulles Intl are usually found in January or February, booked 43 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Niagara Falls to Dulles Intl

Keep the following information in mind while searching for Niagara Falls to Dulles Intl flight deals. Data was last updated 29 April 2025.

Round-trip from

C$ 249

One-way from

C$ 179

Popular in

July

Cheapest in

January

Average price

C$ 434
United Airlines
  • United Airlines
  • 3/6-4/6
  • Nonstop
  • 3h 19m total
  • Niagara Falls to Washington, D.C.
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Air Canada
  • Air Canada
  • 11/5
  • Nonstop
  • 1h 29m total
  • Niagara Falls to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Niagara Falls to Dulles Intl

Cheapest flights from Niagara Falls to Dulles Intl
Explore the most affordable flight options available from Niagara Falls to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Tue 7/107:47 p.m.YYZ - IAD
Nonstop1h 38mAir Canada
Wed 8/108:20 a.m.IAD - YYZ
1 stop10h 13mAir Canada
Deal found 28/4C$ 238
Tue 3/67:47 p.m.YYZ - IAD
Nonstop1h 40mUnited Airlines
Wed 4/63:30 p.m.IAD - YYZ
Nonstop1h 39mUnited Airlines
Deal found 27/4C$ 249
Fri 23/512:10 p.m.YYZ - IAD
1 stop7h 32mDelta
Wed 28/55:24 p.m.IAD - YYZ
1 stop5h 34mDelta
Deal found 28/4C$ 298
Sat 24/57:47 p.m.YYZ - IAD
Nonstop1h 38mMultiple Airlines
Mon 26/58:22 a.m.IAD - YYZ
Nonstop1h 42mMultiple Airlines
Deal found 28/4C$ 330
Wed 14/512:15 p.m.YYZ - IAD
1 stop4h 29mWestJet
Sun 18/56:00 a.m.IAD - YYZ
1 stop5h 25mWestJet
Deal found 28/4C$ 356

Cheapflights Fare Finder

Customize your flight search to find flights from Niagara Falls to Dulles Intl 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 629,999 searches. Data last updated 29 April 2025.
Use the filters below to find and compare flights from Niagara Falls to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Niagara Falls

Fly to

Dulles Intl

Route

Depart

Return

Price

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 7/10

7:47 p.m.-9:25 p.m.

Nonstop1h 38m

Washington, D.C. Dulles Intl

Wed 8/10

8:20 a.m.-6:33 p.m.

1 stop10h 13m

C$ 238

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 3/6

7:47 p.m.-9:27 p.m.

Nonstop1h 40m

Washington, D.C. Dulles Intl

Wed 4/6

3:30 p.m.-5:09 p.m.

Nonstop1h 39m

C$ 249

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 23/5

12:10 p.m.-7:42 p.m.

1 stop7h 32m

Washington, D.C. Dulles Intl

Wed 28/5

5:24 p.m.-10:58 p.m.

1 stop5h 34m

C$ 298

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Sat 24/5

7:47 p.m.-9:25 p.m.

Nonstop1h 38m

Washington, D.C. Dulles Intl

Mon 26/5

8:22 a.m.-10:04 a.m.

Nonstop1h 42m

C$ 330

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 14/5

12:15 p.m.-4:44 p.m.

1 stop4h 29m

Washington, D.C. Dulles Intl

Sun 18/5

6:00 a.m.-11:25 a.m.

1 stop5h 25m

C$ 356

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 11/6

10:05 a.m.-11:39 a.m.

Nonstop1h 34m

C$ 180

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 12/6

12:10 p.m.-1:41 p.m.

Nonstop1h 31m

C$ 183

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 12/6

3:31 p.m.-10:55 p.m.

1 stop7h 24m

C$ 188

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Mon 19/5

6:05 p.m.-10:54 p.m.

1 stop4h 49m

C$ 227

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 7/5

4:00 p.m.-4:36 p.m.

1 stop24h 36m

C$ 279

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 13 results
1
2

Best time to book a flight from Niagara Falls to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Niagara Falls 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 Niagara Falls to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to Dulles Intl. Price data was last updated on 25 April 2025.

To ensure you get the cheapest price possible for a flight from Niagara Falls to Washington, D.C. Dulles Intl Airport, you should look to book at least 43 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 Niagara Falls to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Niagara Falls to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Niagara Falls to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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 NI4 to IAD?

Find hourly flight availability from Niagara Falls to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 April 2025.

When flying from Niagara Falls to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Niagara Falls to Washington, D.C. Dulles Intl Airport?

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

Travelers seeking maximum savings on their Niagara Falls to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday 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 Niagara Falls to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Niagara Falls to Dulles Intl. 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 29 April 2025.

The most flights from NI4 to IAD are scheduled on a Monday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 29 April 2025.
See what other customers who have flown with Delta, United Airlines and American Airlines from Niagara Falls to Washington, D.C. have to say. 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.
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,823 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,240 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 179. United Airlines flights start at C$ 180 while deals on Delta start at C$ 188 one-way.

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

    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 Niagara Falls to Washington, D.C. Dulles Intl Airport on time: ANA (90%), Avianca (87%), Copa Airlines (84%).

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

    The cheapest flight price from Niagara Falls to Washington, D.C. Dulles Intl Airport is C$ 175. On average you can expect to pay C$ 1,359. The most popular route, (Toronto Pearson Intl - Washington, D.C. Dulles Intl), can usually be booked for C$ 249.

  • Can I find deals for flights from Niagara Falls to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from Niagara Falls to Dulles Intl?

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

  • Can I find deals for business class flights from Niagara Falls to Dulles Intl?

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

    Currently, February is the cheapest month in which you can book a flight from Niagara Falls to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Niagara Falls to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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

Travelling to a place near Niagara Falls?

Book flights to Niagara Falls if you plan to visit one of these locations
Herndon
Warrenton
Arlington
Hanover
Bel Air
Fairfax
Gaithersburg
Winchester
Falls Church
Alexandria
Manassas
Fredericksburg
Rockville

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Top 5 airlines flying from Niagara Falls to Dulles Intl

Discover the top 5 airlines that operate flights from Niagara Falls to Dulles Intl. 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 629,999 searches. Data last updated 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 205AverageC$ 389FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 228AverageC$ 326FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 260AverageC$ 486FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 273AverageC$ 448FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 468AverageC$ 572FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Niagara Falls to Dulles Intl?

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Why should you use Cheapflights to find cheap flight tickets from Niagara Falls to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Niagara Falls to Dulles Intl.

Can Cheapflights find flights from Niagara Falls to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Niagara Falls to Dulles Intl with no change fees.

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Of course! You can now track prices for flights from Niagara Falls to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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