United Flight UA3674 Deals & Information (2025/2026)

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United Flight 3674 Route Deals From $117

The cheapest prices found with in the last 7 days for return flights were $229 and $117 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 4 - Fri, Nov 7
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$229 Roundtrip, found 1 day ago
$229
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Fri, Nov 7, priced at $229 found 1 day ago
Sat, Oct 18 - Thu, Oct 23
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 days ago
Select United flight, departing Sat, Oct 18 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Thu, Oct 23, priced at $239 found 2 days ago
Wed, Nov 12 - Sat, Nov 15
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$241 Roundtrip, found 1 day ago
$241
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 12 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sat, Nov 15, priced at $241 found 1 day ago
Tue, Nov 4 - Fri, Nov 7
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Fri, Nov 7, priced at $250 found 1 day ago
Tue, Dec 23 - Sat, Dec 27
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$251 Roundtrip, found 7 hours ago
$251
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Dec 23 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sat, Dec 27, priced at $251 found 7 hours ago
Thu, Nov 13 - Sun, Nov 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$285 Roundtrip, found 2 hours ago
$285
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Nov 13 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sun, Nov 16, priced at $285 found 2 hours ago

Frequently asked questions

What route does flight number UA3674 take?
UA3674 operates direct from Washington Dulles Intl. Airport (IAD) to Hilton Head Airport. During this trip, you can expect to be in the air for roughly 2 hours and 1 minute. It pays to book ahead to secure your favorite seat.
What kind of plane is on flight number UA3674?
The route for flight number UA3674 is nearly always Washington, DC Airport (IAD-Washington Dulles Intl.) to Hilton Head Island Airport (HHH), and the Embraer 170 is the type of plane you'll probably be jetting off with.
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 UA3674 flight with Travelocity, please visit our Customer Service Portal.