United Flight 3491 Deals & Information (2025/2026)

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United Flight 3491 Route Deals From $123

The cheapest prices found with in the last 7 days for return flights were $189 and $123 for one-way flights to Portland Intl. Jetport for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 20 - Tue, Aug 26
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$189 Roundtrip, found 4 hours ago
$189
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Aug 20 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Aug 26, priced at $189 found 4 hours ago
Tue, Jun 17 - Sat, Jun 21
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$192 Roundtrip, found 6 hours ago
$192
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Jun 17 from Washington Dulles Intl. to Portland Intl. Jetport, returning Sat, Jun 21, priced at $192 found 6 hours ago
Wed, Aug 20 - Tue, Aug 26
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$194 Roundtrip, found 4 hours ago
$194
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Aug 20 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Aug 26, priced at $194 found 4 hours ago
Tue, Jun 17 - Sat, Jun 28
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$198 Roundtrip, found 4 days ago
$198
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 17 from Washington Dulles Intl. to Portland Intl. Jetport, returning Sat, Jun 28, priced at $198 found 4 days ago
Wed, Aug 20 - Tue, Aug 26
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$199 Roundtrip, found 4 hours ago
$199
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Aug 20 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Aug 26, priced at $199 found 4 hours ago
Mon, Jun 30 - Wed, Jul 9
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$202 Roundtrip, found 2 days ago
$202
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jun 30 from Washington Dulles Intl. to Portland Intl. Jetport, returning Wed, Jul 9, priced at $202 found 2 days ago
Wed, Aug 20 - Tue, Aug 26
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Aug 20 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Aug 26, priced at $204 found 4 hours ago
Wed, Aug 20 - Tue, Aug 26
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$205 Roundtrip, found 4 hours ago
$205
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Aug 20 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Aug 26, priced at $205 found 4 hours ago
Sat, Jul 5 - Sat, Jul 12
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$207 Roundtrip, found 3 days ago
$207
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jul 5 from Washington Dulles Intl. to Portland Intl. Jetport, returning Sat, Jul 12, priced at $207 found 3 days ago
Wed, Aug 20 - Tue, Aug 26
IAD
Washington Dulles Intl.
PWM
Portland Intl. Jetport
$210 Roundtrip, found 4 hours ago
$210
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Aug 20 from Washington Dulles Intl. to Portland Intl. Jetport, returning Tue, Aug 26, priced at $210 found 4 hours ago

Frequently asked questions

What route does flight number UA3491 take?
UA3491 is used on multiple routes, but the most common is between Chicago, IL Airport (ORD-O’Hare Intl.) and Chattanooga Airport. If on a direct flight, you’ll disembark the plane in around 1 hour and 46 minutes. Multi-stop flights can also operate under this number, as can services on other routes.
What terminal does UA3491 fly out of?
Terminal 2 is where you’ll likely depart from if you’re booked on a flight out of ORD. O’Hare Intl. Airport (ORD) to CHA is the most commonly traveled route for flight number UA3491.
What kind of plane is on flight number UA3491?
If you’re considering booking flight UA3491 from ORD to Chattanooga, TN Airport (CHA-Chattanooga Metropolitan), there’s an excellent chance you’ll be traveling on an Embraer 170. Flight UA3491 serves several routes, but this is the busiest.
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 UA3491 flight with Travelocity, please visit our Customer Service Portal.