United Flight AC3663 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 3663 Route Deals From $137

The cheapest prices found with in the last 7 days for return flights were $326 and $137 for one-way flights to Pierre Elliott Trudeau Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 3 - Sat, Dec 6
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$326 Roundtrip, found 22 hours ago
$326
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Dec 3 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Dec 6, priced at $326 found 22 hours ago
Thu, Oct 23 - Sun, Oct 26
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$327 Roundtrip, found 4 hours ago
$327
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Oct 23 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sun, Oct 26, priced at $327 found 4 hours ago
Wed, Dec 10 - Sat, Dec 13
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$334 Roundtrip, found 22 hours ago
$334
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Dec 10 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Dec 13, priced at $334 found 22 hours ago
Thu, Oct 23 - Sun, Oct 26
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$337 Roundtrip, found 4 hours ago
$337
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Oct 23 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sun, Oct 26, priced at $337 found 4 hours ago
Tue, Nov 25 - Sat, Nov 29
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$339 Roundtrip, found 4 hours ago
$339
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Nov 25 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Nov 29, priced at $339 found 4 hours ago
Wed, Dec 10 - Sat, Dec 13
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$344 Roundtrip, found 22 hours ago
$344
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Dec 10 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Dec 13, priced at $344 found 22 hours ago

Frequently asked questions

What route does flight number UA3663 take?
UA3663 takes multiple routes. The most frequently flown is Detroit Metropolitan Wayne County Airport (DTW) to Newark, NJ Airport (EWR-Liberty Intl.), which is a direct flight. This flight typically takes 1 hour and 42 minutes. That said, there may possibly be other flights with the same number that are multi-stop.
What terminal does UA3663 fly out of?
If you're heading off from Detroit Metropolitan Wayne County Airport (DTW), you'll likely board the plane from Terminal N. The most traveled route for flight number UA3663 is Metro Airport to EWR, which is a nonstop flight.
What kind of plane is on flight number UA3663?
It's highly likely you'll be cruising aboard an Embraer 170 if you've booked a seat on flight number UA3663 from Detroit, MI Airport (DTW-Detroit Metropolitan Wayne County) to Newark Airport. This is the most commonly used type of aircraft on this popular route.
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 UA3663 flight with Travelocity, please visit our Customer Service Portal.