SEA - YYT

$443 Find Cheap Flights from Seattle to St. John's

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to St. John's departing on 6/11. 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

KAYAK searches hundreds of travel sites at once for deals on flights to St. John's

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to St. John's, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to St. John's, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$443
WestJet
Thu 6/11Mon 6/22
SEA - YYT • 2 stops
Top airlines
Cheapest • from $443 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and St. John's. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $815 (round-trip)
Shortest trip • 9h 43m (one-way)
Insights
Insights
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Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. John's!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to St. John's (SEA-YYT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to St. John's 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 St. John's

Thu, Jun 11 - Mon, Jun 22
WestJet Logo
7:35 pm - 10:55 pm
SEA
-
YYT
22h 50m
2 stops
WestJet Logo
7:35 am - 6:45 pm
YYT
-
SEA
15h 40m
1 stop
$443WestJet
Thu, Apr 30 - Sat, May 9
WestJet Logo
10:30 am - 6:45 am
SEA
-
YYT
15h 45m
1 stop
WestJet Logo
3:00 pm - 9:40 am
YYT
-
SEA
23h 10m
2 stops
$460WestJet
Thu, Apr 30 - Sat, May 9
WestJet Logo
10:30 am - 10:55 pm
SEA
-
YYT
31h 55m
2 stops
WestJet Logo
3:00 pm - 9:40 am
YYT
-
SEA
23h 10m
2 stops
$470WestJet
Sun, Apr 26 - Fri, May 1
Multiple Airlines Logo
7:35 pm - 6:45 am
SEA
-
YYT
30h 40m
1 stop
Multiple Airlines Logo
1:35 pm - 9:08 pm
YYT
-
SEA
12h 03m
1 stop
$473Multiple Airlines
Sun, Apr 26 - Fri, May 1
WestJet Logo
7:35 pm - 10:55 pm
SEA
-
YYT
22h 50m
2 stops
WestJet Logo
7:35 am - 6:45 pm
YYT
-
SEA
15h 40m
1 stop
$477WestJet
Thu, Jun 11 - Mon, Jun 22
WestJet Logo
7:35 pm - 10:55 pm
SEA
-
YYT
22h 50m
2 stops
WestJet Logo
3:00 pm - 9:40 am
YYT
-
SEA
23h 10m
2 stops
$482WestJet
Thu, Jun 11 - Mon, Jun 22
WestJet Logo
7:35 pm - 10:55 pm
SEA
-
YYT
22h 50m
2 stops
WestJet Logo
3:00 pm - 9:40 am
YYT
-
SEA
23h 10m
2 stops
$488WestJet
Thu, Jun 11 - Tue, Jun 23
WestJet Logo
7:35 pm - 10:55 pm
SEA
-
YYT
22h 50m
2 stops
WestJet Logo
3:00 pm - 9:40 am
YYT
-
SEA
23h 10m
2 stops
$489WestJet
Sun, Apr 26 - Fri, May 1
Multiple Airlines Logo
10:30 am - 10:55 pm
SEA
-
YYT
31h 55m
2 stops
Multiple Airlines Logo
7:30 am - 9:08 pm
YYT
-
SEA
18h 08m
2 stops
$501Multiple Airlines
Mon, Jun 15 - Mon, Jun 22
WestJet Logo
7:35 pm - 10:55 pm
SEA
-
YYT
22h 50m
2 stops
WestJet Logo
7:35 am - 6:45 pm
YYT
-
SEA
15h 40m
1 stop
$503WestJet
Booking Insights

KAYAK's insights & trends for Seattle to St. John's flights

Get data-powered insights and trends into flights from Seattle to St. John's to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Seattle to St. John's?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Seattle to St. John's were found on WestJet ($443) and Air Canada ($650).

Good to know

Cheapest flight$443
Flight from Seattle to St. John's

When to book flights from Seattle to St. John's

Are your dates flexible? Find out the best times to travel from Seattle to St. John's based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to St. John's

  • What is the cheapest flight from Seattle to St. John's?

    In the last 3 days, the lowest price for a flight from Seattle to St. John's was $443 for a round-trip ticket.

  • Do I need a passport to fly between Seattle and St. John's?

    Yes

  • Which airports will I be using when flying from Seattle to St. John's?

    Seattle and St. John's are both served by 1 main airport. You will leave Seattle from Seattle/Tacoma Intl and will be arriving at St John's.

  • Which aircraft models fly most regularly from Seattle to St. John's?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to St. John's?

    Star Alliance is the only airline alliance operating flights between Seattle and St. John's.

  • Which is the best airline for flights from Seattle to St. John's, United Airlines or WestJet?

    The two airlines most popular with KAYAK users for flights from Seattle to St. John's are United Airlines and WestJet. With an average price for the route of $435 and an overall rating of 7.4, United Airlines is the most popular choice. WestJet is also a great choice for the route, with an average price of $564 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Seattle to St. John's?

    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 St. John's.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. John's 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 St. John's?

    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 St. John's with an airline and back to Seattle with another airline. Booking your flights between Seattle and YYT can sometimes prove cheaper using this method.

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

    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 St. John's from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Seattle to St. John's

 
See real verified KAYAK customer reviews for airlines flying from Seattle to St. John's. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to St. John's? 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.
7.4
United AirlinesOverall score based on 9462 reviews
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

8.0 ExcellentLaba, Mar 2026
DEN - YEG
Read more United Airlines reviews

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Entertainment kept turning itself off. Gave up on watching a movie.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Not United Airlines' fault. It's ORL airport's fault.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Flight was good but there are way to many announcements for credit cards etc.

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,

Flight was good, crew was excellent. No complaints at all

Delayed 3 times in a row for 4 hours total. Incrementally pushing back the flight claiming gate delays but they eventually changed the actual plane, due to technical issues. This strategy to avoid compensation to passengers is unprofessional.

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

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

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

The trip from LAX to Calgary was aboard a 737-700, which is more than twenty years old. Service was fine, and the food was good, but there was no inflight entertainment, and no WiFi. The flight from Calgary to Vancouver was also delayed more than an hour, due to congestion on the Calgary tarmac. And no food service, but there was in-flight WiFi which made a big difference.

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

The most uncomfortable flight I’ve ever been on. I’m only 5,4” and barely had enough room to exist, couldn’t even fully relax my shoulders. Not sure why they bother with snacks. Half a coke and a single cookie?? Wow. Purchasable food looked gross too. Remember when airlines used to treat you like a human being?

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

Extremely disappointing. My original Denver–Vancouver–Bangkok itinerary was cancelled due to a crewing issue. I was not proactively supported and had to drive back home after already reaching the airport. Communication was poor throughout, and attempts to contact customer service resulted in being on hold for nearly three hours without reaching anyone. Instead of being rebooked on the same direct routing the following day, I was rerouted onto a much longer itinerary via multiple cities and airlines, which resulted in arriving approximately 30 hours later than scheduled. At Denver airport, there was no visible Air Canada representative available to properly assist. Ground staff offered no real support beyond directing passengers to a phone number. There was no clear communication, no ownership, and no meaningful customer care during a major disruption. The final journey involved three flights instead of the original two, significantly increasing travel time and stress. Overall, the handling of the cancellation and lack of customer support was unacceptable. What could have been better? Clear communication during the cancellation Accessible customer service (phone support that actually answers) Proper in-person assistance at the airport Rebooking onto a comparable routing rather than a significantly longer one

Great setup on both flights except the last flight we got condensed dripping all over me in the last 20 mins of the flight

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

Everything you need to know for your flight from Seattle to St. John's

Information on your arrival and departure airports