United Flight 3640 Deals & Information (2026/2027)

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United Flight 3640 Route Deals From $237

The cheapest prices found with in the last 7 days for return flights were $265 and $237 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 14 - Tue, Apr 21
MSN
Dane County Regional
ORD
O'Hare Intl.
$265 Roundtrip, found 5 days ago
$265
Roundtrip
found 5 days ago
Select United flight, departing Tue, Apr 14 from Dane County Regional to O'Hare Intl., returning Tue, Apr 21, priced at $265 found 5 days ago
Tue, Apr 14 - Tue, Apr 21
MSN
Dane County Regional
ORD
O'Hare Intl.
$296 Roundtrip, found 5 days ago
$296
Roundtrip
found 5 days ago
Select United flight, departing Tue, Apr 14 from Dane County Regional to O'Hare Intl., returning Tue, Apr 21, priced at $296 found 5 days ago
Fri, Apr 10 - Wed, Apr 22
MSN
Dane County Regional
ORD
O'Hare Intl.
$300 Roundtrip, found 2 days ago
$300
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 10 from Dane County Regional to O'Hare Intl., returning Wed, Apr 22, priced at $300 found 2 days ago
Tue, Apr 14 - Tue, Apr 21
MSN
Dane County Regional
ORD
O'Hare Intl.
$306 Roundtrip, found 5 days ago
$306
Roundtrip
found 5 days ago
Select United flight, departing Tue, Apr 14 from Dane County Regional to O'Hare Intl., returning Tue, Apr 21, priced at $306 found 5 days ago
Tue, Apr 14 - Tue, Apr 21
MSN
Dane County Regional
ORD
O'Hare Intl.
$314 Roundtrip, found 5 days ago
$314
Roundtrip
found 5 days ago
Select United flight, departing Tue, Apr 14 from Dane County Regional to O'Hare Intl., returning Tue, Apr 21, priced at $314 found 5 days ago
Fri, Apr 10 - Wed, Apr 22
MSN
Dane County Regional
ORD
O'Hare Intl.
$323 Roundtrip, found 2 days ago
$323
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 10 from Dane County Regional to O'Hare Intl., returning Wed, Apr 22, priced at $323 found 2 days ago
Fri, Apr 10 - Wed, Apr 22
MSN
Dane County Regional
ORD
O'Hare Intl.
$325 Roundtrip, found 2 days ago
$325
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 10 from Dane County Regional to O'Hare Intl., returning Wed, Apr 22, priced at $325 found 2 days ago
Fri, Apr 10 - Wed, Apr 22
MSN
Dane County Regional
ORD
O'Hare Intl.
$336 Roundtrip, found 2 days ago
$336
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 10 from Dane County Regional to O'Hare Intl., returning Wed, Apr 22, priced at $336 found 2 days ago
Fri, Apr 10 - Wed, Apr 22
MSN
Dane County Regional
ORD
O'Hare Intl.
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 10 from Dane County Regional to O'Hare Intl., returning Wed, Apr 22, priced at $344 found 2 days ago
Fri, Apr 10 - Wed, Apr 22
MSN
Dane County Regional
ORD
O'Hare Intl.
$346 Roundtrip, found 2 days ago
$346
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 10 from Dane County Regional to O'Hare Intl., returning Wed, Apr 22, priced at $346 found 2 days 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.