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Banff

$78+ Cheap flights from Seattle (SEA) to Banff, 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 6/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYC
Apr 27 — May 41
Mon 4/27
Mon 5/4
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Banff are usually found in October or April, booked 68 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Seattle to Banff

Cheapest flights from Seattle to Banff
Explore the most affordable flight options available from Seattle to Banff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2026.

This Air Canada deal was found by Cheapflights users on 3/27. 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.
Sat 7/187:20 pm
SEA
-
YYC
1 stop5h 20m
Air Canada
Sat 7/252:05 pm
YYC
-
SEA
1 stop5h 27m
Air Canada
Deal found 3/27$228
This Air Canada deal was found by Cheapflights users on 3/27. 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.
Sat 4/2510:20 am
SEA
-
YYC
2 stops8h 12m
Air Canada
Sun 5/39:20 am
YYC
-
SEA
2 stops6h 00m
Air Canada
Deal found 3/27$230
This Air Canada deal was found by Cheapflights users on 3/27. 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 8/205:40 am
SEA
-
YYC
1 stop3h 50m
Air Canada
Mon 8/243:50 pm
YYC
-
SEA
2 stops7h 58m
Air Canada
Deal found 3/27$233
This Air Canada deal was found by Cheapflights users on 3/27. 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.
Sat 4/2510:20 am
SEA
-
YYC
2 stops8h 12m
Air Canada
Tue 5/57:00 am
YYC
-
SEA
1 stop4h 05m
Air Canada
Deal found 3/27$235
This Mytrip deal was found by Cheapflights users on 3/23. 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.
Thu 5/75:50 am
SEA
-
YYC
2 stops8h 12m
Air Canada
Sun 5/107:10 pm
YYC
-
SEA
1 stop4h 30m
Air Canada
Deal found 3/23$240
This Air Canada deal was found by Cheapflights users on 3/25. 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.
Sat 6/67:20 pm
SEA
-
YYC
1 stop5h 21m
Air Canada
Sun 6/146:00 am
YYC
-
SEA
1 stop4h 50m
Air Canada
Deal found 3/25$241
This Air Canada deal was found by Cheapflights users on 3/25. 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.
Mon 6/85:45 am
SEA
-
YYC
2 stops8h 17m
Air Canada
Sun 6/147:00 am
YYC
-
SEA
1 stop4h 05m
Air Canada
Deal found 3/25$246
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 5/267:35 pm
SEA
-
YYC
Nonstop1h 40m
WestJet
Fri 5/295:50 pm
YYC
-
SEA
Nonstop1h 55m
WestJet
Deal found 3/25$249
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/275:00 am
SEA
-
YYC
1 stop15h 48m
United Airlines
Sat 5/26:00 am
YYC
-
SEA
2 stops18h 29m
United Airlines
Deal found 3/27$250
This Flightnetwork deal was found by Cheapflights users on 3/23. 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.
Thu 5/75:50 am
SEA
-
YYC
2 stops8h 12m
Air Canada
Thu 5/146:00 am
YYC
-
SEA
1 stop5h 05m
Air Canada
Deal found 3/23$251
This Mytrip deal was found by Cheapflights users on 3/25. 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 5/92:55 pm
SEA
-
YYC
1 stop4h 46m
Air Canada
Mon 5/117:10 pm
YYC
-
SEA
1 stop4h 30m
Air Canada
Deal found 3/25$252

Find flight deals from Seattle to Banff

Keep the following information in mind while searching for Seattle to Banff flight deals. Data was last updated March 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(Mytrip)

One-way from

$78
(Flightnetwork)

Popular in

December

Cheapest in

October

Average price

$333
Provider with most accurate pricing for Seattle/Tacoma Intl-Calgary flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Calgary flights.
Search Deals
From Seattle/Tacoma Intl to Banff
Search Deals
One-way flight from Seattle/Tacoma Intl to Banff
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Banff 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 28, 2026.
Use the filters below to find and compare flights from Seattle to Banff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Tue 6/9

7:35 pm-10:15 pm

Nonstop1h 40m

Calgary

Sat 6/13

5:50 pm-6:45 pm

Nonstop1h 55m

$289

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Wed 6/24

10:30 am-1:10 pm

Nonstop1h 40m

Calgary

Sun 6/28

8:45 am-9:40 am

Nonstop1h 55m

$289

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Wed 6/17

7:00 am-9:50 am

Nonstop1h 50m

Calgary

Tue 6/23

5:50 pm-6:45 pm

Nonstop1h 55m

$289

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Sun 6/21

10:30 am-1:10 pm

Nonstop1h 40m

Calgary

Sun 6/28

8:45 am-9:40 am

Nonstop1h 55m

$289

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Mon 6/1

7:35 pm-10:15 pm

Nonstop1h 40m

Calgary

Thu 6/4

1:00 pm-6:38 pm

1 stop6h 38m

$294

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Wed 5/20

2:55 pm-10:01 pm

1 stop6h 06m

Calgary

Mon 5/25

6:00 am-10:05 am

1 stop5h 05m

$301

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Sat 5/2

5:50 am-3:02 pm

2 stops8h 12m

Calgary

Wed 5/6

6:00 am-10:05 am

1 stop5h 05m

$309

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Thu 5/14

5:50 am-6:31 pm

2 stops11h 41m

Calgary

Thu 5/28

2:05 pm-6:30 pm

1 stop5h 25m

$314

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Wed 4/22

5:00 am-1:53 pm

1 stop7h 53m

Calgary

Wed 4/29

1:27 pm-11:27 pm

2 stops11h 00m

$330

SeattleCalgary

SEA - YYC

SEAYYC

Seattle/Tacoma Intl

Sat 4/18

5:00 am-1:53 pm

1 stop7h 53m

Calgary

Tue 4/21

1:27 pm-11:27 pm

2 stops11h 00m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Banff

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Banff. Price data was last updated on March 13, 2026.

The best time to book flights from Seattle to Banff is 68 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 Banff?

Currently, October is the cheapest month in which you can book a flight from Seattle to Banff (average of $118). Flying from Seattle to Banff in February is currently the most expensive (average of $160). 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 B4N?

Find hourly flight availability from Seattle to Banff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Seattle to Banff by exploring options for tickets in the evening.

What is the cheapest day to fly from Seattle to Banff?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Banff. Price data was last updated on March 23, 2026.

Travelers seeking maximum savings on their Seattle to Banff flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Banff

Explore weekly flight availability from Seattle to Banff. 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 28, 2026.

The most flights from SEA to B4N are scheduled on a Wednesday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from Seattle to Banff?

Reviews of airlines servicing Banff

Get insights into the airlines that provide service to Banff. 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 Banff. Reviews last updated March 28, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andWestJet from Seattle to Banff 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
7.9
Good
12,126 reviews

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,126 reviews
Alaska Airlines
7.9
Good
12,126 reviews

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,343 reviews
Alaska Airlines
7.9
Good
12,126 reviews

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
WestJet
7.2
Good
3,302 reviews
Alaska Airlines
7.9
Good
12,126 reviews

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Air Canada
7.1
Good
10,850 reviews
Alaska Airlines
7.9
Good
12,126 reviews

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Banff. 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 Banff?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Banff from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Banff should be relatively easy as there are 5 daily outbound flights to Banff from 4 different airlines.

  • How popular is this Seattle to Banff flight route?

    Within the past month, 32 users have taken a look at flights from Seattle/Tacoma Intl to Banff.

  • How long is the flight from Seattle to Banff?

    Airlines like Delta fly from Seattle to Banff in about 1h 40m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 451 mi. Generally, flights for this route are nonstop.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $58. Users have also found prices from $74 and $81 on Air Canada and Delta, respectively.

  • What are the most reliable airlines from Seattle to Banff?

    The top 3 most reliable airlines when flying from Seattle to Banff are Horizon Air (86%), Korean Air (86%) and WestJet Encore (78%).

  • What are the cheapest flights from Seattle to Banff?

    On average you can expect to pay $285 for a flight from Seattle to Banff. The cheapest flight overall is $77 while the most popular route, (Seattle/Tacoma Intl - Calgary) is currently priced at $223.

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

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

  • How can I find direct flights from Seattle to Banff?

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

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

    Yes. Cheapflights offers flight deals from Seattle to Banff 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 Banff?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Banff (average of $118). Flying from Seattle to Banff in February is currently the most expensive (average of $160). 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 Banff

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Seattle to Banff

Discover the top 4 airlines that operate flights from Seattle to Banff. 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 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$86Average$211FlexibilityNo cancel feeOn-time67%
DeltaCheapest$108Average$269FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$140Average$231FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$205Average$352FlexibilityNo cancel feeOn-time75%

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