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Niagara Falls

$133+ Cheap flights from Seattle (SEA) 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Niagara Falls are usually found in January or February, booked 70 days in advance, depart on a Thursday or Monday and return on a Wednesday

Cheap flight deals from Seattle to Niagara Falls

Keep the following information in mind while searching for Seattle to Niagara Falls flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$248
(Kiwi.com)

One-way from

$133
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$368
Provider with most accurate pricing for Seattle/Tacoma Intl-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Toronto (YTO) flights.
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From Seattle/Tacoma Intl to Niagara Falls
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One-way flight from Seattle/Tacoma Intl to Niagara Falls
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Highest demand for flights based on searches. 7% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Seattle to Niagara Falls

Cheapest flights from Seattle to Niagara Falls
Explore the most affordable flight options available from Seattle to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Tue 4/2912:30 pmSEA - YYZ
1 stop14h 25mMultiple Airlines
Tue 5/67:00 amYYZ - SEA
1 stop20h 56mMultiple Airlines
Deal found 3/30$248
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Fri 5/301:50 pmSEA - YYZ
1 stop7h 34mWestJet
Mon 6/28:00 amYYZ - SEA
1 stop7h 58mWestJet
Deal found 3/30$267
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:15 amSEA - YYZ
Nonstop4h 45mAlaska Airlines
Tue 5/64:45 pmYYZ - SEA
Nonstop5h 14mAlaska Airlines
Deal found 3/31$370
This Air Canada deal was found by Cheapflights users on 3/30. 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.
Thu 6/511:40 amSEA - YYZ
Nonstop4h 57mAir Canada
Mon 6/98:30 amYYZ - SEA
Nonstop5h 21mAir Canada
Deal found 3/30$381
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2211:45 pmSEA - YYZ
1 stop14h 00mUnited Airlines
Sat 4/267:20 pmYYZ - SEA
Nonstop5h 21mUnited Airlines
Deal found 3/30$391
This Delta deal was found by Cheapflights users on 3/30. 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.
Mon 4/2112:45 amSEA - YYZ
1 stop8h 14mDelta
Mon 4/285:50 pmYYZ - SEA
1 stop9h 12mDelta
Deal found 3/30$401
This CheapTicketsDeal deal was found by Cheapflights users on 3/30. 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 CheapTicketsDeal is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/107:15 amSEA - YYZ
Nonstop4h 45mHawaiian Airlines
Thu 5/224:45 pmYYZ - SEA
Nonstop5h 19mHawaiian Airlines
Deal found 3/30$416

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 March 31, 2025.
Use the filters below to find and compare flights from Seattle to Niagara Falls that are best for you.

Fly from

Seattle

Fly to

Niagara Falls

Route

Depart

Return

Price

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 4/29

12:30 pm-5:55 am

1 stop14h 25m

Toronto Pearson Intl

Tue 5/6

7:00 am-12:56 am

1 stop20h 56m

$248

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 5/30

1:50 pm-12:24 am

1 stop7h 34m

Toronto Pearson Intl

Mon 6/2

8:00 am-12:58 pm

1 stop7h 58m

$267

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 4/29

7:15 am-3:00 pm

Nonstop4h 45m

Toronto Pearson Intl

Tue 5/6

4:45 pm-6:59 pm

Nonstop5h 14m

$370

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 6/5

11:40 am-7:37 pm

Nonstop4h 57m

Toronto Pearson Intl

Sun 6/8

8:30 am-10:51 am

Nonstop5h 21m

$381

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 4/22

7:00 am-4:45 pm

1 stop6h 45m

Toronto Pearson Intl

Thu 4/24

7:20 pm-9:41 pm

Nonstop5h 21m

$391

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 4/28

12:45 am-11:59 am

1 stop8h 14m

Toronto Pearson Intl

Tue 5/6

6:00 am-2:45 pm

1 stop11h 45m

$395

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 4/21

11:45 pm-11:49 am

1 stop9h 04m

Toronto Pearson Intl

Mon 4/28

7:20 pm-9:41 pm

Nonstop5h 21m

$407

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 4/30

12:59 am-12:40 pm

1 stop8h 41m

Toronto Pearson Intl

Tue 5/6

6:30 am-5:28 pm

1 stop13h 58m

$411

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 5/10

7:15 am-3:00 pm

Nonstop4h 45m

Toronto Pearson Intl

Thu 5/22

4:45 pm-7:04 pm

Nonstop5h 19m

$416

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 5/6

4:20 pm-8:54 pm

2 stops25h 34m

$133

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 17 results
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Best time to book a flight from Seattle to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Seattle 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 Seattle to Niagara Falls

How far ahead should I book a flight from Seattle to Niagara Falls?

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

The best time to book flights from Seattle to Niagara Falls is 70 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 Seattle to Niagara Falls?

Currently, January is the cheapest month in which you can book a flight from Seattle to Niagara Falls (average of $243). Flying from Seattle to Niagara Falls in July is currently the most expensive (average of $359). 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 SEA to NI4?

Find hourly flight availability from Seattle 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 March 31, 2025.

When flying from Seattle 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 Seattle to Niagara Falls?

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

Travelers seeking maximum savings on their Seattle to Niagara Falls flight should consider departing on Saturday 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 Seattle to Niagara Falls

Explore weekly flight availability from Seattle 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 March 31, 2025.

The most flights from SEA to NI4 are scheduled on a Monday (6 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 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 March 31, 2025.
To help decide which airline to fly from Seattle to Niagara Falls, see what other customers have to say about Alaska Airlines, Delta and Hawaiian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,342 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle 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 airport do you fly from for flights from Seattle to Niagara Falls?

    If you book a flight to Niagara Falls from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 3 flights from Seattle/Tacoma Intl to Niagara Falls per day from 5 different airlines.

  • What are the cheapest airlines to fly from Seattle to Niagara Falls one-way?

    $138 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Alaska Airlines and United Airlines, with prices starting from $161 and $166, respectively.

  • What are the most reliable airlines from Seattle to Niagara Falls?

    Consider Air Tahiti Nui (100%), Alaska Airlines (90%) or Hawaiian Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Niagara Falls.

  • What are the cheapest flights from Seattle to Niagara Falls?

    While on average a flight from Seattle to Niagara Falls is generally $1,406, our data shows the cheapest flight currently is $160. When looking at the most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl), you can expect to pay $268 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Niagara Falls?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Niagara Falls (average of $243). Flying from Seattle to Niagara Falls in July is currently the most expensive (average of $359). 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 Seattle 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 Seattle to Niagara Falls

Discover the top 5 airlines that operate flights from Seattle 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$138Average$540FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$158Average$472FlexibilityNo cancel feeOn-time69%
WestJetCheapest$235Average$479FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$248Average$495FlexibilityNo cancel feeOn-time75%
DeltaCheapest$427Average$593FlexibilityNo cancel feeOn-timeN/A
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