C$486 Cheap Flights from Saint John (YSJ) to Seattle (SEAA)

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Flight deals from Saint John to Seattle

Looking for a cheap last-minute deal or the best return flight from Saint John Airport to Seattle? If you want to travel next month, return fares start from C$886. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Saint John to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Saint John to Seattle flights are currently cheapest in August.

Saint John to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$486
Cheapest month to flyAugust

Finding cheap flights from Saint John to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Saint John to Seattle is C$886. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Saint John to Seattle. But we found flights with one or more stops from C$886.
As of July 2026, there are no flights flying from Saint John to Seattle.
The cheapest month to fly from Saint John to Seattle is usually August.
If you're flying from Saint John Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from C$886.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Saint John Airport to Seattle on Friday, August 14, 2026.
No airlines currently offer direct flights between Saint John Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

In July, the average temperature is usually around 17°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Flair Airlines offers the cheapest flight tickets to Seattle.

Travelling from Saint John Airport (YSJ) to Seattle: what you need to know

  • The timezone in Seattle is UTC-7. The city is 4 hours behind Saint John, where Saint John Airport is located.

  • To ensure you get on your flight from YSJ to Seattle, leave plenty of time for things like check-in and baggage drop. Turning up two hours before international departures and an hour before domestic flights is the standard rule.

  • During popular months such as August, you'll want to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead for international flights when you travel during high season in general.

  • If you hold a passport from Canada and are travelling to United States for tourism purposes, you won't need a visa. However, entry and visa requirements may vary based on your length of stay and can be subject to change. For the latest rules, contact your destination's nearest consulate or embassy before reserving a cheap ticket from Saint John Airport to Seattle.

  • Located around 24 kilometres from the centre of Saint John, YSJ can be reached in approximately 21 minutes by car, depending on traffic. The same journey on public transport is roughly 57 minutes.

  • Want a convenient hotel close to YSJ? If you're catching an early flight from Saint John Airport to Seattle, these accommodation options will have you sleeping moments from check-in:

How to find the cheapest flights from Saint John Airport (YSJ) to Seattle

  • The best price we've found for a one-way ticket from Saint John Airport to Seattle is C$486. The cheapest price for a return flight is C$886. Keep in mind fares may change due to availability at the time of booking.

  • It's a good idea to book ahead of time if you want to find cheap tickets from YSJ to Seattle. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.

  • The 'Whole month' tool shows you the cheapest tickets from Saint John Airport to Seattle across every month. It's a great way to snap up a bargain if your trip dates are flexible.

  • Create a Price Alert for cheap tickets from YSJ to Seattle. There's no need to look every day to find out if fares have dropped. We'll notify you as soon as the price changes.

  • Make the most of the filters to find your ideal trip. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Saint John Airport to Seattle, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to the centre of Seattle takes about 18 minutes by car. It's approximately 23 kilometres away.

  • When travelling on public transport, expect a journey of around 54 minutes.

  • Consider booking a hotel close to SEA if you have a late flight from Saint John Airport to Seattle. Choose one of these accommodation options and avoid the hassle of a long transfer:

Lake Union Sea Plane Base Airport (LKE)

Best time to go to Seattle

  • It's time to work out your travel dates for your flight from Saint John Airport to Seattle. July is the busiest month to visit Seattle. If you prefer a more peaceful vibe, go in May.

  • Book your flight from Saint John Airport to Seattle for August to visit the city during its warmest month. You can expect temperatures to range from 12ºC to 28ºC.

  • If you'd rather travel in cooler conditions, look for a cheap flight from YSJ to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Saint John Airport to Seattle, check out our range of accommodation options including:

  • There are so many things to explore in this city it can be tricky to work out where to begin. Gas Works - Lake View Point, Queen Anne Bowl Playfield and LMN Architects are major attractions which should feature on any good Seattle itinerary.

Complete your Seattle trip with a car rental

  • We use the same magic that helped you find your cheap flight from Saint John Airport to Seattle to track down awesome deals on car rentals. Search for your ride in seconds and compare offers in one place. Plus we give you all the info you need on car rentals in Seattle, from the most popular rental company to the best time to book.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.