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Niagara-on-the-Lake

$86+ Cheap flights from Washington, D.C. (WAS) to Niagara-on-the-Lake, 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YYZ
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Niagara-on-the-Lake are usually found in February or June, booked 59 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Washington, D.C. to Niagara-on-the-Lake

Keep the following information in mind while searching for Washington, D.C. to Niagara-on-the-Lake flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$203
(Kiwi.com)

One-way from

$86
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$318
From Washington, D.C. (WAS) to Niagara-on-the-Lake
Search Deals
One-way flight from Washington, D.C. (WAS) to Niagara-on-the-Lake
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Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington, D.C. to Niagara-on-the-Lake

Cheapest flights from Washington, D.C. to Niagara-on-the-Lake
Explore the most affordable flight options available from Washington, D.C. to Niagara-on-the-Lake. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/319:11 pmBWI - YYZ
1 stop17h 09mMultiple Airlines
lun. 11/34:00 pmYYZ - BWI
1 stop6h 36mMultiple Airlines
Deal found 9/9$203
This Mytrip deal was found by Cheapflights users on 9/11. 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.
dom. 10/266:00 amDCA - YYZ
1 stop5h 40mAir Canada
dom. 11/28:15 amYYZ - DCA
1 stop4h 04mAir Canada
Deal found 9/11$211
This Flightnetwork deal was found by Cheapflights users on 9/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/242:25 pmIAD - YYZ
Nonstop1h 32mAir Canada
jue. 9/258:10 amYYZ - IAD
Nonstop1h 28mAir Canada
Deal found 9/9$211
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2111:19 amBWI - YYZ
1 stop11h 21mMultiple Airlines
vie. 10/315:15 pmYYZ - BWI
1 stop16h 06mMultiple Airlines
Deal found 9/9$213
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/28:59 pmIAD - YYZ
1 stop24h 22mMultiple Airlines
lun. 10/67:45 amYYZ - IAD
1 stop7h 54mMultiple Airlines
Deal found 9/9$213
This Flightnetwork deal was found by Cheapflights users on 9/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/610:20 amIAD - YYZ
Nonstop1h 32mAir Canada
mar. 10/74:30 pmYYZ - IAD
1 stop4h 35mAir Canada
Deal found 9/9$214
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/118:17 pmBWI - YYZ
1 stop17h 48mMultiple Airlines
mié. 10/156:30 amYYZ - BWI
1 stop8h 18mMultiple Airlines
Deal found 9/9$215
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/309:52 pmIAD - YYZ
1 stop19h 20mMultiple Airlines
dom. 11/22:20 pmYYZ - IAD
1 stop7h 49mMultiple Airlines
Deal found 9/9$215
This Mytrip deal was found by Cheapflights users on 9/11. 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.
sáb. 10/116:59 amDCA - YYZ
Nonstop1h 32mAir Canada
mié. 10/153:00 pmYYZ - DCA
1 stop6h 51mAir Canada
Deal found 9/11$217
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/14:25 pmIAD - YYZ
Nonstop1h 33mAir Canada
mar. 11/46:55 pmYYZ - IAD
Nonstop1h 31mAir Canada
Deal found 9/9$217
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/166:00 amDCA - YYZ
1 stop5h 39mAir Canada
dom. 10/197:25 amYYZ - DCA
Nonstop1h 34mAir Canada
Deal found 9/11$218
This Mytrip deal was found by Cheapflights users on 9/11. 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.
sáb. 10/112:25 pmIAD - YYZ
Nonstop1h 32mAir Canada
mié. 10/158:10 amYYZ - IAD
Nonstop1h 28mAir Canada
Deal found 9/11$220

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Niagara-on-the-Lake 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Niagara-on-the-Lake that are best for you.

Fly from

Washington, D.C.

Fly to

Niagara-on-the-Lake

Route

Depart

Return

Price

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

mié. 10/1

7:49 pm-2:05 pm

1 stop18h 16m

Toronto Pearson Intl

lun. 10/6

1:30 pm-11:01 am

1 stop21h 31m

$236

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

jue. 9/25

6:59 am-8:31 am

Nonstop1h 32m

Toronto Pearson Intl

sáb. 9/27

7:25 am-8:59 am

Nonstop1h 34m

$254

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

jue. 10/2

6:00 am-9:22 am

1 stop3h 22m

Toronto Pearson Intl

lun. 10/6

3:35 pm-10:59 pm

1 stop7h 24m

$261

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

mié. 10/1

6:00 am-9:22 am

1 stop3h 22m

Toronto Pearson Intl

lun. 10/6

3:35 pm-10:59 pm

1 stop7h 24m

$261

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

sáb. 11/1

5:10 pm-10:55 pm

1 stop5h 45m

Toronto Pearson Intl

lun. 11/3

3:35 pm-11:00 pm

1 stop7h 25m

$261

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

mar. 12/2

6:00 am-2:43 pm

1 stop8h 43m

Toronto Pearson Intl

lun. 12/8

3:38 pm-11:08 pm

1 stop7h 30m

$261

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

dom. 10/12

6:05 am-2:45 pm

1 stop8h 40m

Toronto Pearson Intl

mié. 10/15

6:00 am-11:57 am

1 stop5h 57m

$261

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

jue. 12/4

6:00 am-2:43 pm

1 stop8h 43m

Toronto Pearson Intl

mar. 12/9

6:05 am-10:26 am

1 stop4h 21m

$261

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

lun. 10/6

6:05 am-2:45 pm

1 stop8h 40m

Toronto Pearson Intl

mié. 10/8

3:35 pm-11:00 pm

1 stop7h 25m

$261

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

mié. 10/15

6:05 am-2:45 pm

1 stop8h 40m

Toronto Pearson Intl

vie. 10/17

3:35 pm-11:00 pm

1 stop7h 25m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Niagara-on-the-Lake

Have a flexible travel schedule? Discover the best time to fly to Niagara-on-the-Lake 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-on-the-Lake

How far ahead should I book a flight from Washington, D.C. to Niagara-on-the-Lake?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Niagara-on-the-Lake. Price data was last updated on August 29, 2025.

The best time to book flights from Washington, D.C. to Niagara-on-the-Lake is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Niagara-on-the-Lake?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Niagara-on-the-Lake (average of $243). Flying from Washington, D.C. to Niagara-on-the-Lake in August is currently the most expensive (average of $348). 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 N1A?

Find hourly flight availability from Washington, D.C. to Niagara-on-the-Lake. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

When flying from Washington, D.C. to Niagara-on-the-Lake, 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. to Niagara-on-the-Lake?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Niagara-on-the-Lake. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Niagara-on-the-Lake flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday mornings 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-on-the-Lake

Explore weekly flight availability from Washington, D.C. to Niagara-on-the-Lake. 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 septiembre 11, 2025.

The most flights from WAS to N1A are scheduled on a Wednesday (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (22 on average).

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

Reviews of airlines servicing Niagara-on-the-Lake

Get insights into the airlines that provide service to Niagara-on-the-Lake. 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-on-the-Lake. Reviews last updated septiembre 11, 2025.
Read reviews from past customers who have flown Delta, Porter Airlines, and United Airlines from Washington, D.C. to Niagara-on-the-Lake. 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
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

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!
Porter Airlines
7.9
Good
363 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

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
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

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
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

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 Washington, D.C. to Niagara-on-the-Lake. 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-on-the-Lake?

    Airlines like Air Canada and Delta fly from Washington, D.C. to Niagara-on-the-Lake in about 1h 32m. The time it takes to get you to your destination can typically vary by up to 1h 50m. The distance from Washington, D.C. to Niagara-on-the-Lake is about 359 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Washington, D.C. to Niagara-on-the-Lake?

    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-on-the-Lake.

  • What are the most reliable airlines from Washington, D.C. to Niagara-on-the-Lake?

    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 Washington, D.C. to Niagara-on-the-Lake on time: ANA (89%), Air Canada (84%), Copa Airlines (81%).

  • What are the cheapest flights from Washington, D.C. to Niagara-on-the-Lake?

    The cheapest flight price from Washington, D.C. to Niagara-on-the-Lake is $106. On average you can expect to pay $933. The most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), can usually be booked for $223.

  • Can I find deals for flights from Washington, D.C. to Niagara-on-the-Lake that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Niagara-on-the-Lake flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Niagara-on-the-Lake?

    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-on-the-Lake.

  • Can I find deals for business class flights from Washington, D.C. to Niagara-on-the-Lake?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Niagara-on-the-Lake 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-on-the-Lake?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Niagara-on-the-Lake (average of $243). Flying from Washington, D.C. to Niagara-on-the-Lake in August is currently the most expensive (average of $348). 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

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Alternative routes for Washington, D.C. to Niagara-on-the-Lake

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
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Dulles Intl to Ottawa flights
Reagan-National to Ottawa flights
Reagan-National to Toronto Island flights
Dulles Intl to Hamilton flights
Dulles Intl to Sault Ste Marie flights
Dulles Intl to London flights
Reagan-National to London flights
Reagan-National to Windsor flights
Reagan-National to Thunder Bay flights
Dulles Intl to Thunder Bay flights
Dulles Intl to Timmins flights
Reagan-National to Hamilton flights
Dulles Intl to Kingston flights
Dulles Intl to Sudbury flights
Reagan-National to Kingston flights
Reagan-National to Sault Ste Marie flights

Top 7 airlines flying from Washington, D.C. to Niagara-on-the-Lake

Discover the top 7 airlines that operate flights from Washington, D.C. to Niagara-on-the-Lake. 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$54Average$283FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$127Average$339FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$137Average$320FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$176Average$246FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$233Average$380FlexibilityNo cancel feeOn-time71%
DeltaCheapest$242Average$316FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$278Average$550FlexibilityNo cancel feeOn-time60%

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