United Flight AC3574 Deals & Information (2025/2026)

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United Flight 3574 Route Deals From $137

The cheapest prices found with in the last 7 days for return flights were $295 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.

Mon, Aug 18 - Wed, Aug 20
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$295 Roundtrip, found 3 days ago
$295
Roundtrip
found 3 days ago
Select United flight, departing Mon, Aug 18 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Wed, Aug 20, priced at $295 found 3 days ago
Tue, Sep 16 - Sat, Sep 20
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$302 Roundtrip, found 3 hours ago
$302
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Sep 16 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Sep 20, priced at $302 found 3 hours ago
Sat, Oct 4 - Sat, Oct 11
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$304 Roundtrip, found 3 hours ago
$304
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Oct 4 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Oct 11, priced at $304 found 3 hours ago
Mon, Jul 28 - Sat, Aug 2
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$309 Roundtrip, found 10 hours ago
$309
Roundtrip
found 10 hours ago
Select United flight, departing Mon, Jul 28 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Aug 2, priced at $309 found 10 hours ago
Mon, Aug 18 - Wed, Aug 20
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$322 Roundtrip, found 3 days ago
$322
Roundtrip
found 3 days ago
Select United flight, departing Mon, Aug 18 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Wed, Aug 20, priced at $322 found 3 days ago
Sat, Oct 4 - Sat, Oct 11
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$328 Roundtrip, found 3 hours ago
$328
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Oct 4 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Oct 11, priced at $328 found 3 hours ago
Sat, Oct 4 - Sat, Oct 11
IAD
Washington Dulles Intl.
YUL
Pierre Elliott Trudeau Intl.
$331 Roundtrip, found 3 hours ago
$331
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Oct 4 from Washington Dulles Intl. to Pierre Elliott Trudeau Intl., returning Sat, Oct 11, priced at $331 found 3 hours ago

Frequently asked questions

What route does flight number UA3574 take?
UA3574 takes several routes. The most popular is Newark, NJ Airport (EWR-Liberty Intl.) to HHH, which flies direct. This flight takes roughly 2 hours and 26 minutes. That said, there may be other flights with this number that are multi-stop.
What terminal does UA3574 fly out of?
You'll probably take off from Terminal C if you're flying from Newark, NJ Airport (EWR-Liberty Intl.). Flight number UA3574 serves multiple routes, but the direct flight between Newark Airport and Hilton Head Airport is the most popular.
What kind of plane is on flight number UA3574?
UA3574 is a flight number that's used on a number of different routes. If you have a ticket on its most popular route, EWR to HHH, there's a strong chance you'll be on an Embraer 170.
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 UA3574 flight with Travelocity, please visit our Customer Service Portal.