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Cheap flights from Niagara Falls to Seattle from C$ 217

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
26 Feb — 5 Mar1
1 adult

The best prices from Niagara Falls to Seattle/Tacoma Intl are usually found in February or January, booked 58 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from Niagara Falls to Seattle

Keep the following information in mind while searching for Niagara Falls to Seattle flight deals. Data was last updated 21 February 2025.

Round-trip from

C$ 332

One-way from

C$ 217

Popular in

May

Cheapest in

February

Average price

C$ 384
4/4-9/4
  • 4/4-9/4
  • 2 total stops
  • 30h 56m total
  • Niagara Falls to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 15/3
  • Nonstop
  • 5h 24m total
  • Niagara Falls to Seattle
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 156 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Niagara Falls to Seattle

Cheapest flights from Niagara Falls to Seattle
Explore the most affordable flight options available from Niagara Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Fri 4/48:00 p.m.YYZ - SEA
1 stop15h 43mMultiple Airlines
Wed 9/412:30 p.m.SEA - YYZ
1 stop15h 13mMultiple Airlines
Deal found 20/2C$ 332
Tue 8/47:05 p.m.YYZ - SEA
Nonstop5h 21mUnited Airlines
Tue 15/46:05 a.m.SEA - YYZ
Nonstop4h 55mUnited Airlines
Deal found 19/2C$ 345
Thu 13/34:20 p.m.YYZ - SEA
Nonstop5h 24mAlaska Airlines
Wed 19/37:15 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 20/2C$ 352
Fri 4/47:05 p.m.YYZ - SEA
Nonstop5h 21mAir Canada
Sun 6/46:05 a.m.SEA - YYZ
Nonstop4h 55mAir Canada
Deal found 20/2C$ 364
Tue 13/59:00 a.m.YYZ - SEA
2 stops14h 28mWestJet
Tue 20/57:05 a.m.SEA - YYZ
2 stops14h 28mWestJet
Deal found 19/2C$ 384
Tue 8/412:14 p.m.YYZ - SEA
1 stop13h 20mDelta
Mon 14/412:40 a.m.SEA - YYZ
1 stop7h 54mDelta
Deal found 19/2C$ 389
Sun 23/312:35 p.m.YYZ - SEA
1 stop12h 30mAmerican Airlines
Sat 29/311:14 p.m.SEA - YYZ
1 stop20h 30mAmerican Airlines
Deal found 20/2C$ 398

Find flights from Niagara Falls to Seattle within your budget

Customize your flight search to find flights from Niagara Falls to Seattle 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 21 February 2025.

Fly from

Niagara Falls

Fly to

Seattle

Route

Depart

Return

Price

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 4/4

8:00 p.m.-8:43 a.m.

1 stop15h 43m

Seattle/Tacoma Intl

Wed 9/4

12:30 p.m.-6:43 a.m.

1 stop15h 13m

C$ 332

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 8/4

7:05 p.m.-9:26 p.m.

Nonstop5h 21m

Seattle/Tacoma Intl

Tue 15/4

6:05 a.m.-2:00 p.m.

Nonstop4h 55m

C$ 345

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 13/3

4:20 p.m.-6:44 p.m.

Nonstop5h 24m

Seattle/Tacoma Intl

Wed 19/3

7:15 a.m.-2:55 p.m.

Nonstop4h 40m

C$ 352

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 4/4

7:05 p.m.-9:26 p.m.

Nonstop5h 21m

Seattle/Tacoma Intl

Sun 6/4

6:05 a.m.-2:00 p.m.

Nonstop4h 55m

C$ 364

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 1/5

9:00 a.m.-8:28 p.m.

2 stops14h 28m

Seattle/Tacoma Intl

Tue 6/5

2:05 p.m.-12:24 a.m.

1 stop7h 19m

C$ 372

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 8/4

12:14 p.m.-10:34 p.m.

1 stop13h 20m

Seattle/Tacoma Intl

Mon 14/4

12:40 a.m.-11:34 a.m.

1 stop7h 54m

C$ 389

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sun 23/3

12:35 p.m.-10:05 p.m.

1 stop12h 30m

Seattle/Tacoma Intl

Sat 29/3

11:14 p.m.-10:44 p.m.

1 stop20h 30m

C$ 398

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 15/3

4:20 p.m.-6:44 p.m.

Nonstop5h 24m

C$ 217

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 3/5

8:00 a.m.-12:58 p.m.

1 stop7h 58m

C$ 220

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 22/3

7:25 p.m.-8:43 a.m.

1 stop16h 18m

C$ 227

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 15 results
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Best time to book a flight from Niagara Falls to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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.

Travel insights for flights from Niagara Falls to Seattle

Get recent, data-driven insights about flights from Niagara Falls to Seattle including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to Seattle. Price data was last updated on 14 February 2025.

The best time to book flights from Niagara Falls to Seattle is 58 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 Niagara Falls to Seattle?

Currently, January is the cheapest month in which you can book a flight from Niagara Falls to Seattle (average of C$ 262). Flying from Niagara Falls to Seattle in April is currently the most expensive (average of C$ 382). 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 SEA?

Find hourly flight availability from Niagara Falls to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Niagara Falls to Seattle as you normally would.

What is the cheapest day to fly from Niagara Falls to Seattle?

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

Travelers seeking maximum savings on their Niagara Falls to Seattle flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Niagara Falls to Seattle

Explore weekly flight availability from Niagara Falls to Seattle. 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 21 February 2025.

The most flights from NI4 to SEA are scheduled on a Wednesday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 21 February 2025.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Niagara Falls to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,766 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet
7.2
Good
2,801 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls to Seattle. 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 into for flights to Seattle from Niagara Falls?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly into when you book flights from Niagara Falls to Seattle. 6 airlines have flights to Seattle/Tacoma Intl from Niagara Falls on a regular basis. Booking flights from Niagara Falls to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 3 inbound flights from Niagara Falls per day.

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

    The cheapest airlines for a one-way flight from Niagara Falls to Seattle are Alaska Airlines (C$ 217), WestJet (C$ 220), and United Airlines (C$ 233).

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

    Before booking your flight to Seattle from Niagara Falls, check out the most reliable airlines to get you to your destination on time: Alaska Airlines (82%), Hawaiian Airlines (82%), Qatar Airways( 69%).

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

    While on average a flight from Niagara Falls to Seattle is generally C$ 1,262, our data shows the cheapest flight currently is C$ 210. When looking at the most popular route, (Toronto Pearson Intl - Seattle/Tacoma Intl), you can expect to pay C$ 270 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Niagara Falls to Seattle (average of C$ 262). Flying from Niagara Falls to Seattle in April is currently the most expensive (average of C$ 382). 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
SeaTac
Tukwila
Marysville
Bothell
Leavenworth
Tacoma
Olympia
Lynnwood

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Alternative routes for Niagara Falls to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Niagara Falls to Seattle

Discover the top 6 airlines that operate flights from Niagara Falls to Seattle. 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 304AverageC$ 529FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 338AverageC$ 564FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air CanadaCheapestC$ 376AverageC$ 689FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 379AverageC$ 721FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 415AverageC$ 618FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 454AverageC$ 656FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Niagara Falls to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 Seattle.

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

Certainly. Search results for flights to Seattle from Niagara Falls shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Niagara Falls to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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