United Flight 3640 Deals & Information (2026/2027)

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United Flight 3640 Route Deals From $161

The cheapest prices found with in the last 7 days for return flights were $326 and $161 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 24 - Mon, Oct 26
RIC
Richmond Intl.
ORD
O'Hare Intl.
$326 Roundtrip, found 1 day ago
$326
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 24 from Richmond Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $326 found 1 day ago
Sat, Oct 24 - Mon, Oct 26
RIC
Richmond Intl.
ORD
O'Hare Intl.
$336 Roundtrip, found 1 day ago
$336
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 24 from Richmond Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $336 found 1 day ago
Thu, Sep 24 - Fri, Sep 25
RIC
Richmond Intl.
ORD
O'Hare Intl.
$338 Roundtrip, found 22 hours ago
$338
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Sep 24 from Richmond Intl. to O'Hare Intl., returning Fri, Sep 25, priced at $338 found 22 hours ago
Sat, Oct 24 - Mon, Oct 26
RIC
Richmond Intl.
ORD
O'Hare Intl.
$339 Roundtrip, found 1 day ago
$339
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 24 from Richmond Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $339 found 1 day ago
Sat, Oct 24 - Mon, Oct 26
RIC
Richmond Intl.
ORD
O'Hare Intl.
$341 Roundtrip, found 1 day ago
$341
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 24 from Richmond Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $341 found 1 day ago
Sat, Nov 14 - Mon, Nov 16
RIC
Richmond Intl.
ORD
O'Hare Intl.
$345 Roundtrip, found 3 days ago
$345
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 14 from Richmond Intl. to O'Hare Intl., returning Mon, Nov 16, priced at $345 found 3 days ago
Sat, Dec 5 - Mon, Dec 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$347 Roundtrip, found 3 days ago
$347
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 5 from Richmond Intl. to O'Hare Intl., returning Mon, Dec 7, priced at $347 found 3 days ago
Sat, Dec 5 - Mon, Dec 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$357 Roundtrip, found 3 days ago
$357
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 5 from Richmond Intl. to O'Hare Intl., returning Mon, Dec 7, priced at $357 found 3 days ago
Sat, Dec 5 - Mon, Dec 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$359 Roundtrip, found 3 days ago
$359
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 5 from Richmond Intl. to O'Hare Intl., returning Mon, Dec 7, priced at $359 found 3 days ago
Wed, Oct 7 - Sat, Oct 10
RIC
Richmond Intl.
ORD
O'Hare Intl.
$363 Roundtrip, found 3 days ago
$363
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 7 from Richmond Intl. to O'Hare Intl., returning Sat, Oct 10, priced at $363 found 3 days ago
Sat, Dec 19 - Mon, Dec 21
RIC
Richmond Intl.
ORD
O'Hare Intl.
$387 Roundtrip, found 3 hours ago
$387
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Dec 19 from Richmond Intl. to O'Hare Intl., returning Mon, Dec 21, priced at $387 found 3 hours ago
Sat, Dec 19 - Mon, Dec 21
RIC
Richmond Intl.
ORD
O'Hare Intl.
$397 Roundtrip, found 3 hours ago
$397
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Dec 19 from Richmond Intl. to O'Hare Intl., returning Mon, Dec 21, priced at $397 found 3 hours ago
Sat, Oct 3 - Sun, Oct 4
RIC
Richmond Intl.
ORD
O'Hare Intl.
$406 Roundtrip, found 6 hours ago
$406
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Oct 3 from Richmond Intl. to O'Hare Intl., returning Sun, Oct 4, priced at $406 found 6 hours ago
Tue, Nov 10 - Sat, Nov 14
RIC
Richmond Intl.
ORD
O'Hare Intl.
$412 Roundtrip, found 1 hour ago
$412
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Nov 10 from Richmond Intl. to O'Hare Intl., returning Sat, Nov 14, priced at $412 found 1 hour ago
Sat, Dec 19 - Mon, Dec 21
RIC
Richmond Intl.
ORD
O'Hare Intl.
$416 Roundtrip, found 3 hours ago
$416
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Dec 19 from Richmond Intl. to O'Hare Intl., returning Mon, Dec 21, priced at $416 found 3 hours ago

Frequently asked questions

What route does flight number UA3640 take?
UA3640 travels between O'Hare Intl. Airport (ORD) and Bangor International Airport directly. This trip usually takes 2 hours and 26 minutes.
What terminal does UA3640 fly out of?
UA3640 runs between O'Hare Airport and Bangor International Airport, and passengers traveling on this flight usually jet off from Terminal 2.
What kind of plane is on flight number UA3640?
Get ready to hop on board an Embraer 175 if you've reserved a seat on flight UA3640. Most services from O'Hare Intl. Airport (ORD) to Bangor, ME Airport (BGR-Bangor Intl.) are operated using this kind of plane.
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 UA3640 flight with Travelocity, please visit our Customer Service Portal.