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Cheap flights from Niagara Falls to Seattle from C$ 209

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
26 Jan — 2 Feb1
1 adult

The best prices from Niagara Falls to Seattle/Tacoma Intl are usually found in February or January, booked 42 days in advance, depart on a Thursday or Tuesday and return on a Sunday

Cheap flight deals from Niagara Falls to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Niagara Falls (NI4) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 341

One-way from

C$ 209

Popular in

March

Cheapest in

February

Average price

C$ 409
21/3-24/3
  • 21/3-24/3
  • 2 total stops
  • 32h 31m total
  • Niagara Falls to Seattle
11/2
  • 11/2
  • 2 total stops
  • 15h 19m total
  • Niagara Falls to Seattle
Highest demand for flights based on searches. 2% potential increase in price (C$ 23 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).
Average for round-trip flights in January 2025

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 January 2025.

Thu 1/58:00 a.m.YYZ - SEA
1 stop8h 08mWestJet
Sat 10/52:05 p.m.SEA - YYZ
2 stops12h 46mWestJet
Deal found 20/1C$ 337
Fri 21/38:00 p.m.YYZ - SEA
1 stop16h 30mMultiple Airlines
Mon 24/311:42 a.m.SEA - YYZ
1 stop16h 01mMultiple Airlines
Deal found 20/1C$ 341
Tue 11/24:20 p.m.YYZ - SEA
Nonstop5h 23mAlaska Airlines
Tue 18/27:18 a.m.SEA - YYZ
Nonstop4h 37mAlaska Airlines
Deal found 19/1C$ 347
Tue 4/37:05 p.m.YYZ - SEA
Nonstop5h 25mUnited Airlines
Wed 12/312:55 p.m.SEA - YYZ
1 stop8h 27mUnited Airlines
Deal found 20/1C$ 348
Thu 27/28:00 a.m.YYZ - SEA
1 stop9h 30mAir Canada
Fri 28/27:05 p.m.SEA - YYZ
1 stop8h 04mAir Canada
Deal found 21/1C$ 376
Thu 13/27:05 p.m.YYZ - SEA
Nonstop5h 25mLufthansa
Wed 19/23:24 p.m.SEA - YYZ
1 stop13h 06mLufthansa
Deal found 21/1C$ 386
Thu 20/35:00 p.m.YYZ - SEA
1 stop10h 09mDelta
Sun 23/312:49 a.m.SEA - YYZ
1 stop9h 44mDelta
Deal found 20/1C$ 423
Thu 13/26:05 a.m.YYZ - SEA
1 stop18h 15mAmerican Airlines
Tue 18/212:43 a.m.SEA - YYZ
1 stop9h 17mAmerican Airlines
Deal found 21/1C$ 459
Thu 13/26:05 a.m.YYZ - SEA
1 stop10h 00mBritish Airways
Tue 18/212:43 a.m.SEA - YYZ
1 stop9h 17mBritish Airways
Deal found 21/1C$ 463

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 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 1/5

8:00 a.m.-1:08 p.m.

1 stop8h 08m

Seattle/Tacoma Intl

Sat 10/5

2:05 p.m.-5:51 a.m.

2 stops12h 46m

C$ 337

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 21/3

8:00 p.m.-9:30 a.m.

1 stop16h 30m

Seattle/Tacoma Intl

Mon 24/3

11:42 a.m.-6:43 a.m.

1 stop16h 01m

C$ 341

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 11/2

4:20 p.m.-6:43 p.m.

Nonstop5h 23m

Seattle/Tacoma Intl

Tue 18/2

7:18 a.m.-2:55 p.m.

Nonstop4h 37m

C$ 347

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 4/3

7:05 p.m.-9:30 p.m.

Nonstop5h 25m

Seattle/Tacoma Intl

Wed 12/3

12:55 p.m.-12:22 a.m.

1 stop8h 27m

C$ 348

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 27/2

8:00 a.m.-2:30 p.m.

1 stop9h 30m

Seattle/Tacoma Intl

Fri 28/2

7:05 p.m.-6:09 a.m.

1 stop8h 04m

C$ 376

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 13/2

7:05 p.m.-9:30 p.m.

Nonstop5h 25m

Seattle/Tacoma Intl

Wed 19/2

3:24 p.m.-7:30 a.m.

1 stop13h 06m

C$ 386

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 20/3

5:00 p.m.-12:09 a.m.

1 stop10h 09m

Seattle/Tacoma Intl

Sun 23/3

12:49 a.m.-1:33 p.m.

1 stop9h 44m

C$ 423

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 13/2

6:05 a.m.-9:20 p.m.

1 stop18h 15m

Seattle/Tacoma Intl

Tue 18/2

12:43 a.m.-1:00 p.m.

1 stop9h 17m

C$ 459

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 13/2

6:05 a.m.-1:05 p.m.

1 stop10h 00m

Seattle/Tacoma Intl

Tue 18/2

12:43 a.m.-1:00 p.m.

1 stop9h 17m

C$ 463

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 11/2

12:00 p.m.-12:19 a.m.

2 stops15h 19m

C$ 209

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

Showing 1-10 of 17 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 17 January 2025.

The best time to book flights from Niagara Falls to Seattle is 39 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$ 257). Flying from Niagara Falls to Seattle in April is currently the most expensive (average of C$ 421). 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 January 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 January 2025.

The most flights from NI4 to SEA are scheduled on a Monday (4 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 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 January 2025.
See what other customers who have flown with WestJet, Alaska Airlines 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.
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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

8.0
Very good
9,706 reviews
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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

8.0
Very good
8,521 reviews
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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

7.4
Good
8,984 reviews
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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

7.2
Good
10,000 reviews
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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

7.2
Good
2,829 reviews
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

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 United Airlines (C$ 212), WestJet (C$ 214), and Air Canada (C$ 216).

  • 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: Qatar Airways (88%), Alaska Airlines (82%), Hawaiian Airlines( 82%).

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

    While on average a flight from Niagara Falls to Seattle is generally C$ 1,401, our data shows the cheapest flight currently is C$ 201. When looking at the most popular route, (Toronto Pearson Intl - Seattle/Tacoma Intl), you can expect to pay C$ 335 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$ 257). Flying from Niagara Falls to Seattle in April is currently the most expensive (average of C$ 421). 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
Marysville
Tukwila
Tacoma
Bothell
Olympia
Lynnwood
Leavenworth

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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 January 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 308AverageC$ 562FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 357AverageC$ 591FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air CanadaCheapestC$ 392AverageC$ 708FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 394AverageC$ 733FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 421AverageC$ 635FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 561AverageC$ 733FlexibilityNo 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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