$139 Find Cheap Flights from Seattle to Banff - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Banff departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$295
Typical prices: $182-$357
WestJet
Fri 9/18Sat 9/26
SEA - YYC • Non-stop
Cheapest one-way
$139
Typical prices: $100-$233
WestJet
Mon 9/21
SEA - YYC • Non-stop
Arrival airport
You can't fly directly to Banff. It is served by Calgary (YYC), located 67.4 miles from Banff.
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Flight Deals
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Flight Deals

Cheap Flights from Seattle to Banff (SEA-YYC)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Banff that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Banff

Fri, Sep 18 - Sat, Sep 26
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
5:50 pm - 6:45 pm
YYC
-
SEA
1h 55mnonstop
$295WestJet
Mon, Jul 13 - Thu, Jul 23
Multiple Airlines Logo
8:41 pm - 11:15 pm
SEA
-
YYC
1h 34mnonstop
Multiple Airlines Logo
5:50 pm - 6:45 pm
YYC
-
SEA
1h 55mnonstop
$296Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
8:45 am - 9:40 am
YYC
-
SEA
1h 55mnonstop
$299WestJet
Tue, Sep 8 - Tue, Sep 15
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
5:50 pm - 6:45 pm
YYC
-
SEA
1h 55mnonstop
$300WestJet
Sun, Sep 27 - Tue, Sep 29
WestJet Logo
10:30 am - 1:10 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
8:45 am - 9:40 am
YYC
-
SEA
1h 55mnonstop
$304WestJet
Sat, Sep 5 - Mon, Sep 7
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
5:50 pm - 6:45 pm
YYC
-
SEA
1h 55mnonstop
$305WestJet
Sun, Sep 6 - Tue, Sep 8
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
8:45 am - 9:40 am
YYC
-
SEA
1h 55mnonstop
$306WestJet
Sat, Sep 12 - Mon, Sep 14
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
5:50 pm - 6:45 pm
YYC
-
SEA
1h 55mnonstop
$307WestJet
Fri, Oct 2 - Mon, Oct 5
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
WestJet Logo
5:50 pm - 6:45 pm
YYC
-
SEA
1h 55mnonstop
$308WestJet
Tue, Nov 10 - Sun, Nov 22
WestJet Logo
3:10 pm - 6:50 pm
SEA
-
YYC
2h 40mnonstop
WestJet Logo
1:25 pm - 1:20 pm
YYC
-
SEA
0h 55mnonstop
$309WestJet
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$139
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Seattle to Calgary

When to book flights from Seattle to Banff

Are your dates flexible? Find out the best times to travel from Seattle to Banff based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Seattle to Banff

  • Which airports will I be using when flying from Seattle to Banff?

    When flying out of Seattle you’ll be using Seattle/Tacoma Intl. Banff does not have its own airport so you’ll be flying into nearby Calgary airport, which is 67.4 mi away.

  • How long does a flight from Seattle to Banff take?

    Direct flights cover the 451 miles separating Seattle and Banff in about 1h 34m.

  • How many flights are there between Seattle and Banff?

    17 direct flights run between Seattle and Banff on a daily basis. On average, there are about 119 departures each week.

  • What’s the cheapest day of the week to fly between Seattle and Banff?

    Consider leaving on a Thursday and avoid Tuesdays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from Seattle to Banff?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Banff.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Banff?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Banff from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Banff?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Banff with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Banff?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Banff from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Seattle to Banff?

    In the last 5 days, the cheapest one-way ticket between Seattle and Banff found on KAYAK was with WestJet for $64. Air Canada offered a round-trip connection from $90 and Delta from $114.

Top tips for finding cheap flights from Seattle to Banff

  • There is no airport in Banff. Instead, you’ll be flying into Calgary Airport when flying between Seattle and Banff.
  • The cheapest flight from Seattle to Banff was found 47 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly is October.

Reviews of the top 4 airlines serving Seattle to Banff

 
Need help choosing which airline to fly with from Seattle to Banff? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12588 reviews
7.0Food
7.8Comfort
7.0Entertainment
8.5Crew
8.1Boarding
Airline reviews

Someone rebooked my Alaska flight to a much later Delta flight. Now I am sitting at the Seattle airport after a long international flight and have to wait another 4 hours even though I would have been able to catch my initial flight

2.0 MediocreAnonymous, Jun 2026
SEA - EUG
Read more Alaska Airlines reviews

Someone rebooked my Alaska flight to a much later Delta flight. Now I am sitting at the Seattle airport after a long international flight and have to wait another 4 hours even though I would have been able to catch my initial flight

Very short leg - too short for any meals/snacks or entertainment.

We missed the flight. I had a passport issue and told the check in desk that I’m trying to resolve it but when I got approved for entry to USA at 3:32, one hour before departure, the employees had left the desk at 3:30. I tried calling and texting the numbers on the sign. No luck. Waited till the agents came back and couldn’t get a flight to our destination or close, so we flew to Las Vegas instead and drove 6 hrs to San Diego where I missed one night’s stay and the car rental that was reserved there. Extra car rental and hotel in Las Vegas was over $300. Lost tine and money. I wanted to extend the trip by two days but the $1600 SAVER fare wouldn’t let me make changes. Hours on the phone to find out there are no exceptions and no credit if cancelled in advance. Very disappointed. My son’s first vacation with me in 17 years. Wasted a lot of money. Next time I will use a local travel agent.

Booked a first class ticket and was not even offered a bottle of water…or a cracker…absolutely zero in flight service on a 1 hour flight

The second leg of my trip left without me despite being my inbound transfer only a few minutes late. My friends told the gate agent and they closed the doors and left early anyway. Then they tried to rebook me on a flight SIX hours later which only changed when I got a supervisor to make it 4 hours later. The gate agent was nasty, unhelpful, and walked away from me.

Well to start the crew is Seattle told me my luggage would go right thru to Ottawa. Not so before landing we were told to pick up luggage at carousel 8. On landing I asked and was told to pick it up & take it to the conveyer to be sent to Porter. Staff said Alaska always says that but no it doesn’t happen. As for Porter they said the flight would be a bit rough, so they offered a free wine or beer. Only snacks were provided on each flight.

Boarding was late with no communication. Flight was over an hour late with virtually no communication or updates. The app showed we had departed and were scheduled to arrive on time even though we sat on the tarmac for nearly an hour. People who were using the app to track our progress to pick us up were given erroneous information. Flight attendant was snooty when asked why app was showing us as delayed and arriving on time even though we had not left and ultimate’s not leave for over an hour. Just poor and arrogant.

My luggage was lost and doesn’t appear to be arrived any time soon.

Check in was a nightmare. We had about 15 people ahead of us but were in line for 45 minutes for priority passengers. Two people were checking in dogs and it took them forever. They even took the dogs out of the kennels to weigh them separately. Crazy! Then when we reached the front of the check in line we were told they couldn’t check us in because we were too early. Had to wait 19 minutes to check in and then check ourselves in and get back in line to drop our bags. This was first class! If I can avoid it I will never fly Alaska again. I sure didn’t get what I paid for.

It would have Bern better if the flight was on time.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

First flight out and was 85 minutes delayed. Notification came out way too late

Terrible experience delays going there and delays coming back will not be flying delta

This airline would not refund my money and I had a physician note that I could not fly. They are crooks

No pre boarding kiosk to check in, baggage claim detected luggage didn’t leave the airport, poorly managed recovery of lost luggage, and blame lost tag from conveyor to TSA/security, very poor from TSA/security check to delivery, crucial if compensation will go thru and will likely wait for months unlike United,

I didn't think about not having the right app for wifi because my connecting flight was with Westjet and when I took off from Seattle I was thinking I would use my wifi, but realized I couldn't on my Westjet app and I did not have Delta's app downloaded.

Plane seating was uncomfortable, very tight fitting for someone my height, did not recline and overall un enjoyable

No communication from Kayak or West Jet. Booked extra flights, flights cancelled, no one answers calls. Will be disputing charges.

Leg room is a problem the plane was dirty and there were no movies available on the app

The personal item sizer cannot take a standard backpack, and the cabin luggage sizer cannot take a standard carry-on. Designed for people from the island of Lilliput!!. and also compels people to pay additional fees to check their bags. Making money by ticking off the passengers is a very short-sighted business strategy, especially since they have a choice of carriers

Scrooge airlines spoiled my last chance at Christmas with my 95 and 92 year old folks. and rest of the family in Calgary. Ticket personnel would not let me on without a passport and I always visit Canada with my enhanced driver;s License when I travel from the US

Westjet is the worst airline in the world, they are absolutely terrible, there are to many things that happened that I can't explain in this message, I would like to talk to someone about my ordeal. I am partial handicapped and that I can only walk a short distance, I calculated how far I walked and it was more than a kilometer, the pain is so bad today I have to go to my docor, they told me there was nobody available to take me to my gate, this is just one instance. This is not finished yet, I need to contact westjet and let them know about my trip from hell

They lost our luggage and didn’t return it until 15 days AFTER we got back.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

They could care less about you. Just under a 4 hour delay in Seattle, leading into a missed connection in Vancouver, which led to 2 more delays that added up to 3 more hours leaving us to have to sleep on the floor of the Toronto airport cause they don't help you find accomodations and they just book you on the next flight out. Took an additional 14 hours to get home. Always given the brush off to get rid of us. Worst airline ever

All was good with comfort and ease of boarding. There was confusion from what gate to board at. Meant moving a long distance but I allowed plenty of time for this.

Good airport. Good entertainment on the big flight. Did not have a good way to prop up or mount my phone/ipad

Air Canada at SeaTac was the best. Polite, helpful, all good!

The problem in part was with the airports, not really the fault of Air Canada. Confusing directions regarding the gate, in Seattle the recommended shuttle train entrance was not working. Simular problems in Toronto. Baggage arrived in good time. Marx Bros movie on entertainment from Seattle. I was told I was laughing too loudly, by the flight attendant. No lounge in Seattle. Lounge in Toronto excellent.

Both fights were delayed. Food could be better comparing to other international flights

I found the personal kind and caring. The Problem was not enough people to serve the the customers. The flow was restricted the crowd frustrated by the wait times. Air Canada seems to hire good people but they need backup in order to provide the service we pay for.

The Montreal to Barcelona flight was cancelled half hour before boarding. We had to struggle for hours to find an alternative route through a very long route with 6 hours of transit time in Munich. It wasted almost one full day of our long awaited vacation. We are extremely disappointed.

Everything you need to know for your flight from Seattle to Banff

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