C$394 Cheap Flights from John C. Munro Hamilton (YHM) to Seattle (SEAA)

Compare John C. Munro Hamilton to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from John C. Munro Hamilton to Seattle

Looking for a cheap last-minute deal or the best return flight from John C. Munro Hamilton Airport to Seattle? If you want to travel next month, return fares start from C$394. Find the lowest prices on one-way and return tickets right here.

Seattle.C$249 per passenger.Departing Tue., Sep. 29.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Tue., Sep. 29, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$249, select.

Seattle.C$287 per passenger.Departing Thu., Oct. 1.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Thu., Oct. 1, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$287, select.

Seattle.C$291 per passenger.Departing Tue., Nov. 10.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Tue., Nov. 10, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$291, select.

Seattle.C$313 per passenger.Departing Tue., Dec. 1.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Tue., Dec. 1, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$313, select.

Seattle.C$318 per passenger.Departing Thu., Mar. 11.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Thu., Mar. 11, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$318, select.

Seattle.C$333 per passenger.Departing Wed., Aug. 26.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Wed., Aug. 26, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$333, select.

Seattle.C$454 per passenger.Departing Sun., Feb. 7.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Sun., Feb. 7, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$454, select.

Seattle.C$521 per passenger.Departing Sun., Jan. 10.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Sun., Jan. 10, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$521, select.

Seattle.C$604 per passenger.Departing Fri., Jun. 18.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Fri., Jun. 18, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$604, select.

Seattle.C$605 per passenger.Departing Mon., Jul. 5.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Mon., Jul. 5, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$605, select.

Seattle.C$636 per passenger.Departing Thu., May 13.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from John C. Munro Hamilton on Thu., May 13, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$636, select.

Find the cheapest month to fly from John C. Munro Hamilton to Seattle

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

Aug.

Sep.

Oct.

Nov.

Dec.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Alternative John C. Munro Hamilton to Seattle routes

Looking for the cheapest, fastest or easiest route from John C. Munro Hamilton to Seattle? You could fly into the following airports instead.

Toronto to Seattle: Flight information

The things to know before you go.

Cheapest flight found	C$249
Cheapest month to fly	September

Finding cheap flights from John C. Munro Hamilton to Seattle: Frequently asked questions

How many airports are there in Seattle?

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.

How much are return flights from John C. Munro Hamilton to Seattle?

The best price we found for a return flight from John C. Munro Hamilton to Seattle is C$394. 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.

Which airlines fly direct from John C. Munro Hamilton to Seattle?

Currently, there are no airlines that fly direct from John C. Munro Hamilton to Seattle. But we found flights with one or more stops from C$394.

How many flights are there a week from John C. Munro Hamilton to Seattle?

As of August 2026, there are no flights flying from John C. Munro Hamilton to Seattle.

When is the cheapest time to fly from John C. Munro Hamilton to Seattle?

The cheapest month to fly from John C. Munro Hamilton to Seattle is usually September.

Which is the cheapest airport to fly into in Seattle?

If you're flying from John C. Munro Hamilton 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$394.

Which upcoming date is cheapest to fly from John C. Munro Hamilton Airport to Seattle on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from John C. Munro Hamilton Airport to Seattle on Friday, September 4, 2026.

Can I get a direct flight from John C. Munro Hamilton Airport to Seattle?

No airlines currently offer direct flights between John C. Munro Hamilton Airport and Seattle. Most routes have one or more stops.

How can I get the best flight deal from John C. Munro Hamilton Airport to Seattle?

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.

When is the best time to book flights to Seattle?

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.

What’s the weather like in Seattle?

In August, the average temperature is usually around 18°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.

Which is the cheapest airline to fly from John C. Munro Hamilton Airport to Seattle with?

Currently, WestJet offers the cheapest flight tickets to Seattle.

Travelling from John C. Munro Hamilton Airport (YHM) to Seattle: what you need to know

Seattle is 3 hours behind Toronto, where John C. Munro Hamilton Airport is located. Seattle operates on the UTC-7 timezone.
For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to board your flight from YHM to Seattle.
During popular months such as August, it's wise to get to the airport earlier than normal. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you travel during high season in general.
You won't need a visa for United States if you hold a passport from Canada and are visiting for tourism purposes. Visa and travel documentation requirements are subject to changes. So before locking in your flight tickets from John C. Munro Hamilton Airport to Seattle, check with your airline and your destination country's local consulate or embassy for the latest rules.
The journey from central Toronto to YHM takes about 3 hours and 22 minutes by public transport. If you drive, ride-share or grab a cab, you'll cover the 80 kilometres in 1 hour and 2 minutes or so, depending on traffic conditions.
Want an easy start to your travels? Stay near YHM. Whether you're boarding an early flight from John C. Munro Hamilton Airport to Seattle or just don't want to be rushed, these hotels are perfect:

How to find the cheapest flights from John C. Munro Hamilton Airport (YHM) to Seattle

The best price we've found for a one-way ticket from John C. Munro Hamilton Airport to Seattle is C$249. The cheapest price for a return flight is C$394. Remember fares may change due to availability at the time of booking.
Don't leave things to the last moment. You're more likely to get cheap tickets from YHM to Seattle if you book in advance. Airlines often offer some amazing early bird discounts.
Finding cheap tickets from John C. Munro Hamilton Airport to Seattle is more likely if you can be flexible with your travel plans. Use the 'Whole month' search tool to show the lowest fares across every month and snap up a great deal.
Create a Price Alert for cheap tickets from YHM to Seattle. You don't need to search every day to find out if fares have dropped. We'll let you know the moment the price changes.
Tailor your travel plans with filters. Select your departure and arrival times, airlines and total journey duration. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from John C. Munro Hamilton Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) to central Seattle is around 18 minutes by car. It's approximately 23 kilometres away.
It typically takes 54 minutes to get there by public transport.
The last thing you want is a long journey to your hotel if you're arriving on a late flight from John C. Munro Hamilton Airport to Seattle. Stay at one of these accommodation options near SEA instead:

Lake Union Sea Plane Base Airport (LKE)

Lake Union Sea Plane Base Airport (LKE) is roughly 3 kilometres from central Seattle. After your flight from John C. Munro Hamilton Airport to Seattle, it'll take you around 11 minutes to reach the heart of the city in a cab or ride-share.
If you're travelling on public transport, it'll take around 23 minutes.
Hang the 'Do not disturb' sign on your door and unwind at a hotel near LKE. Here are a few options where you can put your feet up after your flight from YHM to Seattle:

Best time to go to Seattle

July is the most popular month for flights from John C. Munro Hamilton Airport to Seattle. To avoid the crowds, travel to Seattle in May when it's quieter.
The warmest month in Seattle is August, with the temperature ranging between 12ºC and 28ºC. Lock in your flights from John C. Munro Hamilton Airport to Seattle in this month if you enjoy this type of weather.
Look for cheap flights from YHM to Seattle in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -1ºC and 11ºC on average.

More about Seattle

After booking your flight from John C. Munro Hamilton Airport to Seattle, think about where you want to stay in this city. Make one of these accommodation options your base for exploring Seattle:
There are so many things to explore in this city it can be hard to work out where to begin. Gas Works - Lake View Point, Queen Anne Bowl Playfield and LMN Architects are top sights which should feature on every Seattle itinerary.

Complete your Seattle trip with a car rental

Finding you a cheap flight from John C. Munro Hamilton Airport to Seattle isn't our only cool trick. Check out our car rentals in Seattle and travel at your own pace. We search for deals from trusted car rental providers and put them all in one place. You can instantly compare rates and then book with no fees.