United Flight UA3674 Deals & Information (2025/2026)

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United Flight 3674 Route Deals From $131

The cheapest prices found with in the last 7 days for return flights were $189 and $131 for one-way flights to Portland Intl. Jetport for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 6 - Tue, Sep 9
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Sep 9, priced at $189 found 1 day ago
Wed, Aug 6 - Wed, Aug 13
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$193 Roundtrip, found 19 hours ago
$193
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Aug 6 from Washington Dulles Intl. to Portland Intl. Jetport, returning Wed, Aug 13, priced at $193 found 19 hours ago
Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$193 Roundtrip, found 5 days ago
$193
Roundtrip
found 5 days ago
Select United flight, departing Sat, Jul 19 from Washington Dulles Intl. to Portland Intl. Jetport, returning Wed, Jul 23, priced at $193 found 5 days ago
Thu, Sep 25 - Mon, Sep 29
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$194 Roundtrip, found 1 day ago
$194
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 25 from Washington Dulles Intl. to Portland Intl. Jetport, returning Mon, Sep 29, priced at $194 found 1 day ago
Mon, Jul 28 - Wed, Aug 6
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$198 Roundtrip, found 1 day ago
$198
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jul 28 from Washington Dulles Intl. to Portland Intl. Jetport, returning Wed, Aug 6, priced at $198 found 1 day ago
Sat, Sep 6 - Tue, Sep 9
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$199 Roundtrip, found 1 day ago
$199
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Sep 9, priced at $199 found 1 day ago
Mon, Jul 28 - Wed, Aug 6
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$202 Roundtrip, found 1 day ago
$202
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jul 28 from Washington Dulles Intl. to Portland Intl. Jetport, returning Wed, Aug 6, priced at $202 found 1 day ago
Sun, Jul 27 - Tue, Aug 5
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jul 27 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Aug 5, priced at $203 found 1 day ago
Sat, Sep 6 - Tue, Sep 9
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Sep 9, priced at $204 found 1 day ago
Wed, Sep 17 - Sat, Sep 20
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$205 Roundtrip, found 3 days ago
$205
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 17 from Washington Dulles Intl. to Portland Intl. Jetport, returning Sat, Sep 20, priced at $205 found 3 days 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.