United Flight AC3621 Deals & Information (2025/2026)

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United Flight 3621 Route Deals From $165

The cheapest prices found with in the last 7 days for return flights were $266 and $165 for one-way flights to Pierre Elliott Trudeau Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 23 - Wed, Oct 29
EWR
Newark Liberty Intl. Airport
YUL
Pierre Elliott Trudeau Intl.
$266 Roundtrip, found 2 hours ago
$266
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Oct 23 from Newark Liberty Intl. Airport to Pierre Elliott Trudeau Intl., returning Wed, Oct 29, priced at $266 found 2 hours ago
Sun, Nov 23 - Tue, Nov 25
EWR
Newark Liberty Intl. Airport
YUL
Pierre Elliott Trudeau Intl.
$314 Roundtrip, found 5 hours ago
$314
Roundtrip
found 5 hours ago
Select United flight, departing Sun, Nov 23 from Newark Liberty Intl. Airport to Pierre Elliott Trudeau Intl., returning Tue, Nov 25, priced at $314 found 5 hours ago

Frequently asked questions

What route does flight number UA3621 take?
You'll be landing into Newark Airport from New Orleans, LA Airport (MSY-Louis Armstrong New Orleans Intl.) if you're traveling on flight number UA3621. You'll be in the sky for 3 hours and 9 minutes during this trip. It's also good to note that it conveniently operates non-stop.
What kind of plane is on flight number UA3621?
The Embraer 170 is the type of plane that's generally used for flight number UA3621. This flight almost always sets off from MSY and comes in to land at Newark, NJ Airport (EWR-Liberty Intl.).
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA3621 flight with Travelocity, please visit our Customer Service Portal.