United Flight 3640 Deals & Information (2026/2027)

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United Flight 3640 Route Deals From $234

The cheapest prices found with in the last 7 days for return flights were $245 and $234 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jun 21 - Sun, Jul 12
MSN
Dane County Regional
ORD
O'Hare Intl.
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jun 21 from Dane County Regional to O'Hare Intl., returning Sun, Jul 12, priced at $245 found 1 day ago
Fri, Aug 7 - Sat, Aug 8
MSN
Dane County Regional
ORD
O'Hare Intl.
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 7 from Dane County Regional to O'Hare Intl., returning Sat, Aug 8, priced at $246 found 1 day ago
Mon, Jan 11 - Wed, Feb 3
MSN
Dane County Regional
ORD
O'Hare Intl.
$249 Roundtrip, found 10 hours ago
$249
Roundtrip
found 10 hours ago
Select United flight, departing Mon, Jan 11 from Dane County Regional to O'Hare Intl., returning Wed, Feb 3, priced at $249 found 10 hours ago
Tue, May 12 - Wed, May 20
MSN
Dane County Regional
ORD
O'Hare Intl.
$260 Roundtrip, found 5 days ago
$260
Roundtrip
found 5 days ago
Select United flight, departing Tue, May 12 from Dane County Regional to O'Hare Intl., returning Wed, May 20, priced at $260 found 5 days ago
Sat, Jun 20 - Sun, Jun 21
MSN
Dane County Regional
ORD
O'Hare Intl.
$272 Roundtrip, found 3 days ago
$272
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jun 20 from Dane County Regional to O'Hare Intl., returning Sun, Jun 21, priced at $272 found 3 days ago
Mon, Jan 11 - Wed, Feb 3
MSN
Dane County Regional
ORD
O'Hare Intl.
$273 Roundtrip, found 10 hours ago
$273
Roundtrip
found 10 hours ago
Select United flight, departing Mon, Jan 11 from Dane County Regional to O'Hare Intl., returning Wed, Feb 3, priced at $273 found 10 hours ago
Sun, Jun 21 - Sun, Jul 12
MSN
Dane County Regional
ORD
O'Hare Intl.
$277 Roundtrip, found 1 day ago
$277
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jun 21 from Dane County Regional to O'Hare Intl., returning Sun, Jul 12, priced at $277 found 1 day ago
Wed, May 27 - Mon, Jun 1
MSN
Dane County Regional
ORD
O'Hare Intl.
$278 Roundtrip, found 5 days ago
$278
Roundtrip
found 5 days ago
Select United flight, departing Wed, May 27 from Dane County Regional to O'Hare Intl., returning Mon, Jun 1, priced at $278 found 5 days ago
Fri, Aug 7 - Sat, Aug 8
MSN
Dane County Regional
ORD
O'Hare Intl.
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 7 from Dane County Regional to O'Hare Intl., returning Sat, Aug 8, priced at $279 found 1 day ago
Mon, Jan 11 - Wed, Feb 3
MSN
Dane County Regional
ORD
O'Hare Intl.
$280 Roundtrip, found 10 hours ago
$280
Roundtrip
found 10 hours ago
Select United flight, departing Mon, Jan 11 from Dane County Regional to O'Hare Intl., returning Wed, Feb 3, priced at $280 found 10 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.