United Flight 3640 Deals & Information (2026/2027)

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United Flight 3640 Route Deals From $207

The cheapest prices found with in the last 7 days for return flights were $304 and $207 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$304 Roundtrip, found 15 hours ago
$304
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $304 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$308 Roundtrip, found 15 hours ago
$308
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $308 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$317 Roundtrip, found 15 hours ago
$317
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $317 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$331 Roundtrip, found 15 hours ago
$331
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $331 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$335 Roundtrip, found 15 hours ago
$335
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $335 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$341 Roundtrip, found 15 hours ago
$341
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $341 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$354 Roundtrip, found 15 hours ago
$354
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $354 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$358 Roundtrip, found 15 hours ago
$358
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $358 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$363 Roundtrip, found 15 hours ago
$363
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $363 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$374 Roundtrip, found 15 hours ago
$374
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $374 found 15 hours ago
Fri, Jan 22 - Sat, Jan 23
RIC
Richmond Intl.
ORD
O'Hare Intl.
$381 Roundtrip, found 15 hours ago
$381
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Jan 22 from Richmond Intl. to O'Hare Intl., returning Sat, Jan 23, priced at $381 found 15 hours ago
Thu, Nov 5 - Sat, Nov 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$511 Roundtrip, found 13 hours ago
$511
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Nov 5 from Richmond Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $511 found 13 hours ago
Thu, Nov 5 - Sat, Nov 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$521 Roundtrip, found 13 hours ago
$521
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Nov 5 from Richmond Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $521 found 13 hours ago
Thu, Nov 5 - Sat, Nov 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$531 Roundtrip, found 13 hours ago
$531
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Nov 5 from Richmond Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $531 found 13 hours ago
Thu, Nov 5 - Sat, Nov 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$534 Roundtrip, found 13 hours ago
$534
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Nov 5 from Richmond Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $534 found 13 hours ago
Thu, Nov 5 - Sat, Nov 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$541 Roundtrip, found 13 hours ago
$541
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Nov 5 from Richmond Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $541 found 13 hours ago
Thu, Nov 5 - Sat, Nov 7
RIC
Richmond Intl.
ORD
O'Hare Intl.
$544 Roundtrip, found 13 hours ago
$544
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Nov 5 from Richmond Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $544 found 13 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.