$170 Cheap Flights from Seattle (SEA) to Moncton (YQM)

View $170 flight on Wed, Sep 3, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Moncton, NB (YQM-Greater Moncton Intl.)

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Cheap Flights from Seattle to Moncton (SEA-YQM)

Prices were available within the past 7 days and start at $170 for one-way flights and $438 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Oct 20 - Tue, Oct 21
SEA
Seattle
YQM
Moncton
$438 Roundtrip, found 6 days ago
$438
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Oct 20 from Seattle to Moncton, returning Tue, Oct 21, priced at $438 found 6 days ago
Air Canada
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
YQM
Moncton
$450 Roundtrip, found 6 days ago
$450
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Sep 1 from Seattle to Moncton, returning Tue, Sep 16, priced at $450 found 6 days ago
Air Canada
Mon, Sep 1 - Wed, Sep 17
SEA
Seattle
YQM
Moncton
$452 Roundtrip, found 6 days ago
$452
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Sep 1 from Seattle to Moncton, returning Wed, Sep 17, priced at $452 found 6 days ago
Air Canada
Mon, Oct 27 - Tue, Nov 11
SEA
Seattle
YQM
Moncton
$455 Roundtrip, found 6 days ago
$455
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Oct 27 from Seattle to Moncton, returning Tue, Nov 11, priced at $455 found 6 days ago
Air Canada
Mon, Oct 20 - Tue, Oct 21
SEA
Seattle
YQM
Moncton
$457 Roundtrip, found 6 days ago
$457
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Oct 20 from Seattle to Moncton, returning Tue, Oct 21, priced at $457 found 6 days ago
Air Canada
Tue, Sep 23 - Thu, Oct 9
SEA
Seattle
YQM
Moncton
$458 Roundtrip, found 6 days ago
$458
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Sep 23 from Seattle to Moncton, returning Thu, Oct 9, priced at $458 found 6 days ago
Air Canada
Mon, Oct 27 - Sun, Nov 16
SEA
Seattle
YQM
Moncton
$462 Roundtrip, found 6 days ago
$462
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Oct 27 from Seattle to Moncton, returning Sun, Nov 16, priced at $462 found 6 days ago
United
Wed, Nov 19 - Wed, Dec 3
SEA
Seattle
YQM
Moncton
$480 Roundtrip, found 6 days ago
$480
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov 19 from Seattle to Moncton, returning Wed, Dec 3, priced at $480 found 6 days ago
Alaska Airlines
Wed, Nov 19 - Wed, Dec 3
SEA
Seattle
YQM
Moncton
$503 Roundtrip, found 6 days ago
$503
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Nov 19 from Seattle to Moncton, returning Wed, Dec 3, priced at $503 found 6 days ago
WestJet
Fri, Aug 15 - Sat, Aug 23
SEA
Seattle
YQM
Moncton
$750 Roundtrip, found 2 days ago
$750
Roundtrip
found 2 days ago
Select WestJet flight, departing Fri, Aug 15 from Seattle to Moncton, returning Sat, Aug 23, priced at $750 found 2 days ago

Alternative airports near Moncton

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Greater Moncton Intl. YQM. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $457
YQM
Greater Moncton Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $457
Flights from Seattle (SEA) to Moncton (YQM)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Greater Moncton Intl.
Roundtrip price
$437
Distance
2663 mi

Seattle to Moncton Flights

The cheapest times to fly from Seattle to Moncton

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Moncton are during the month of October. You can find some of the cheapest flights from Seattle to Moncton with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Moncton

Sunday is one of the best days to book for cheap flights from Seattle to Moncton: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Moncton

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Moncton in 2025. You can also book with separate airlines for your outbound and return journeys, from $170 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Moncton flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Moncton airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Greater Moncton Intl. Airport (YQM) cost?
Discover the latest flight deals from SEA to YQM by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to YQM?
The cheapest flights from SEA to YQM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to YQM?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to YQM. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Greater Moncton Intl. Airport (YQM)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Greater Moncton Intl. Airport (YQM) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to YQM?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Greater Moncton Intl. Airport (YQM)?
To arrive at Greater Moncton Intl. Airport (YQM) on time, choose a flight that leaves Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Greater Moncton Intl. Airport (YQM) last-minute?
Booking your flight from SEA to YQM shortly before your getaway is typically more expensive. However, if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a SEA to YQM flight and hotel package?
You'll typically save money by booking a SEA to YQM flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your preferred accommodations and flights, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Greater Moncton Intl. Airport (YQM)?
In most instances, you're able to cancel or reschedule your SEA to YQM flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more details, head to our Customer Service portal.

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*Available to One Key members.