United Flight 3640 Deals & Information (2026/2027)

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United Flight 3640 Route Deals From $241

The cheapest prices found with in the last 7 days for return flights were $326 and $241 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Apr 23 - Sun, Apr 26
MSN
Dane County Regional
ORD
O'Hare Intl.
$326 Roundtrip, found 3 days ago
$326
Roundtrip
found 3 days ago
Select United flight, departing Thu, Apr 23 from Dane County Regional to O'Hare Intl., returning Sun, Apr 26, priced at $326 found 3 days ago
Sat, Apr 25 - Sun, Apr 26
MSN
Dane County Regional
ORD
O'Hare Intl.
$327 Roundtrip, found 2 days ago
$327
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Dane County Regional to O'Hare Intl., returning Sun, Apr 26, priced at $327 found 2 days ago
Thu, Apr 23 - Sun, Apr 26
MSN
Dane County Regional
ORD
O'Hare Intl.
$397 Roundtrip, found 3 days ago
$397
Roundtrip
found 3 days ago
Select United flight, departing Thu, Apr 23 from Dane County Regional to O'Hare Intl., returning Sun, Apr 26, priced at $397 found 3 days ago
Sat, Apr 25 - Sun, Apr 26
MSN
Dane County Regional
ORD
O'Hare Intl.
$399 Roundtrip, found 2 days ago
$399
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Dane County Regional to O'Hare Intl., returning Sun, Apr 26, priced at $399 found 2 days ago
Sat, Nov 21 - Sun, Nov 29
MSN
Dane County Regional
ORD
O'Hare Intl.
$405 Roundtrip, found 3 hours ago
$405
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 21 from Dane County Regional to O'Hare Intl., returning Sun, Nov 29, priced at $405 found 3 hours ago
Sat, Nov 21 - Sun, Nov 29
MSN
Dane County Regional
ORD
O'Hare Intl.
$414 Roundtrip, found 3 hours ago
$414
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 21 from Dane County Regional to O'Hare Intl., returning Sun, Nov 29, priced at $414 found 3 hours ago
Sat, Nov 21 - Sun, Nov 29
MSN
Dane County Regional
ORD
O'Hare Intl.
$436 Roundtrip, found 3 hours ago
$436
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 21 from Dane County Regional to O'Hare Intl., returning Sun, Nov 29, priced at $436 found 3 hours ago
Sat, Nov 21 - Sun, Nov 29
MSN
Dane County Regional
ORD
O'Hare Intl.
$445 Roundtrip, found 3 hours ago
$445
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 21 from Dane County Regional to O'Hare Intl., returning Sun, Nov 29, priced at $445 found 3 hours ago
Sat, Apr 25 - Sun, Apr 26
MSN
Dane County Regional
ORD
O'Hare Intl.
$448 Roundtrip, found 2 days ago
$448
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Dane County Regional to O'Hare Intl., returning Sun, Apr 26, priced at $448 found 2 days ago
Sat, Nov 21 - Sun, Nov 29
MSN
Dane County Regional
ORD
O'Hare Intl.
$471 Roundtrip, found 3 hours ago
$471
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 21 from Dane County Regional to O'Hare Intl., returning Sun, Nov 29, priced at $471 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.