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Niagara Falls

$87+ Cheap flights from Dulles Intl (IAD) to Niagara Falls, 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Niagara Falls are usually found in April or October, booked 75 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Dulles Intl to Niagara Falls

Keep the following information in mind while searching for Dulles Intl to Niagara Falls flight deals. Data was last updated June 12, 2025.

Round-trip from

$198
(Air Canada)

One-way from

$87
(Mytrip)

Popular in

November

Cheapest in

April

Average price

$347
From Washington, D.C. Dulles Intl to Niagara Falls
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One-way flight from Washington, D.C. Dulles Intl to Niagara Falls
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Dulles Intl to Niagara Falls

Cheapest flights from Dulles Intl to Niagara Falls
Explore the most affordable flight options available from Dulles Intl to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/11. 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 7/222:25 pmIAD - YYZ
Nonstop1h 36mAir Canada
Tue 7/298:10 amYYZ - IAD
Nonstop1h 27mAir Canada
Deal found 6/11$198
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/196:00 amIAD - YYZ
1 stop8h 45mDelta
Wed 7/236:04 amYYZ - IAD
1 stop5h 58mDelta
Deal found 6/12$234
This Mytrip deal was found by Cheapflights users on 6/11. 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 7/269:43 pmIAD - YYZ
1 stop23h 25mMultiple Airlines
Sat 8/28:10 amYYZ - IAD
Nonstop1h 27mMultiple Airlines
Deal found 6/11$249
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/55:12 pmIAD - YYZ
Nonstop1h 53mUnited Airlines
Thu 8/1412:45 pmYYZ - IAD
Nonstop1h 34mUnited Airlines
Deal found 6/10$253
This Kissandfly.com deal was found by Cheapflights users on 6/11. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:15 amIAD - YYZ
1 stop5h 29mLufthansa
Mon 8/116:20 pmYYZ - IAD
1 stop3h 04mLufthansa
Deal found 6/11$321
This WestJet deal was found by Cheapflights users on 6/9. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/246:00 amIAD - YYZ
1 stop3h 21mWestJet
Tue 6/2412:14 pmYYZ - IAD
1 stop4h 30mWestJet
Deal found 6/9$360

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl 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 June 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Niagara Falls that are best for you.

Fly from

Dulles Intl

Fly to

Niagara Falls

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 7/22

2:25 pm-4:01 pm

Nonstop1h 36m

Toronto Pearson Intl

Tue 7/29

8:10 am-9:37 am

Nonstop1h 27m

$198

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 7/19

6:00 am-2:45 pm

1 stop8h 45m

Toronto Pearson Intl

Wed 7/23

6:04 am-12:02 pm

1 stop5h 58m

$234

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 7/26

9:43 pm-9:08 pm

1 stop23h 25m

Toronto Pearson Intl

Sat 8/2

8:10 am-9:37 am

Nonstop1h 27m

$249

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 8/5

5:12 pm-7:05 pm

Nonstop1h 53m

Toronto Pearson Intl

Thu 8/14

12:45 pm-2:19 pm

Nonstop1h 34m

$253

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 8/11

6:15 am-11:44 am

1 stop5h 29m

Toronto Pearson Intl

Mon 8/11

6:20 pm-9:24 pm

1 stop3h 04m

$321

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 6/24

6:00 am-9:21 am

1 stop3h 21m

Toronto Pearson Intl

Tue 6/24

11:39 am-7:51 pm

1 stop8h 12m

$352

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 8/18

2:25 pm-4:01 pm

Nonstop1h 36m

$87

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 8/13

9:50 am-5:23 pm

1 stop7h 33m

$89

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 9/12

5:00 pm-2:05 pm

2 stops21h 05m

$104

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 6/30

5:12 pm-7:05 pm

Nonstop1h 53m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 12 results
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Best time to book a flight from Dulles Intl to Niagara Falls

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Niagara Falls. Price data was last updated on June 9, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Niagara Falls may vary depending on when you book. For the best chance of a lower fare, look to book 75 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. Dulles Intl Airport to Niagara Falls?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Niagara Falls (average of $243). Flying from Washington, D.C. Dulles Intl Airport to Niagara Falls in July is currently the most expensive (average of $353). 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 IAD to NI4?

Find hourly flight availability from Dulles Intl 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 June 12, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Niagara Falls, 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 Washington, D.C. Dulles Intl Airport to Niagara Falls?

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

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

Explore weekly flight availability from Dulles Intl 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 June 12, 2025.

The most flights from IAD to NI4 are scheduled on a Wednesday (19 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Niagara Falls by month

Plan your trip to Niagara Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Niagara Falls ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Niagara Falls when rainfall is around 2.0 in.

Temperature in Niagara Falls by month

Plan your trip to Niagara Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Niagara Falls, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Niagara Falls, such as Delta, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,531 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Niagara Falls. 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 Washington, D.C. Dulles Intl Airport to Niagara Falls one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $87. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Niagara Falls for a low price.

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

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Niagara Falls are Sun Country Air (100%), ANA (93%) and Jazz (82%).

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

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Niagara Falls? While on average our users pay $1,885, our data indicates the cheapest price to be $98. The most popular route (Washington, D.C. Dulles Intl - Toronto Pearson Intl), is priced around $199.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Niagara Falls?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Niagara Falls (average of $243). Flying from Washington, D.C. Dulles Intl Airport to Niagara Falls in July is currently the most expensive (average of $353). 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 Dulles Intl to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Dulles Intl to Niagara Falls

Discover the top 5 airlines that operate flights from Dulles Intl 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$117Average$278FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$129Average$338FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$169Average$310FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$196Average$351FlexibilityNo cancel feeOn-time69%
WestJetCheapest$278Average$478FlexibilityNo cancel feeOn-time60%

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