United Flight 3640 Deals & Information (2026/2027)

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United Flight 3640 Route Deals From $81

The cheapest prices found with in the last 7 days for return flights were $150 and $81 for one-way flights to Pittsburgh Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Mar 25 - Sat, Mar 28
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$150 Roundtrip, found 1 day ago
$150
Roundtrip
found 1 day ago
Select United flight, departing Wed, Mar 25 from O'Hare Intl. to Pittsburgh Intl., returning Sat, Mar 28, priced at $150 found 1 day ago
Wed, Apr 1 - Sun, Apr 5
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$173 Roundtrip, found 22 hours ago
$173
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Apr 1 from O'Hare Intl. to Pittsburgh Intl., returning Sun, Apr 5, priced at $173 found 22 hours ago
Tue, Mar 31 - Thu, Apr 2
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$176 Roundtrip, found 4 days ago
$176
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 31 from O'Hare Intl. to Pittsburgh Intl., returning Thu, Apr 2, priced at $176 found 4 days ago
Fri, Mar 27 - Wed, Apr 1
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$179 Roundtrip, found 1 day ago
$179
Roundtrip
found 1 day ago
Select United flight, departing Fri, Mar 27 from O'Hare Intl. to Pittsburgh Intl., returning Wed, Apr 1, priced at $179 found 1 day ago
Fri, Mar 27 - Fri, Apr 3
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$182 Roundtrip, found 3 days ago
$182
Roundtrip
found 3 days ago
Select United flight, departing Fri, Mar 27 from O'Hare Intl. to Pittsburgh Intl., returning Fri, Apr 3, priced at $182 found 3 days ago
Wed, Apr 1 - Sun, Apr 5
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$198 Roundtrip, found 22 hours ago
$198
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Apr 1 from O'Hare Intl. to Pittsburgh Intl., returning Sun, Apr 5, priced at $198 found 22 hours ago
Fri, Mar 27 - Fri, Apr 3
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$199 Roundtrip, found 3 days ago
$199
Roundtrip
found 3 days ago
Select United flight, departing Fri, Mar 27 from O'Hare Intl. to Pittsburgh Intl., returning Fri, Apr 3, priced at $199 found 3 days ago
Fri, Mar 27 - Tue, Mar 31
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$205 Roundtrip, found 1 day ago
$205
Roundtrip
found 1 day ago
Select United flight, departing Fri, Mar 27 from O'Hare Intl. to Pittsburgh Intl., returning Tue, Mar 31, priced at $205 found 1 day ago
Wed, Mar 25 - Sat, Mar 28
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$209 Roundtrip, found 1 day ago
$209
Roundtrip
found 1 day ago
Select United flight, departing Wed, Mar 25 from O'Hare Intl. to Pittsburgh Intl., returning Sat, Mar 28, priced at $209 found 1 day ago
Fri, Mar 27 - Wed, Apr 1
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$210 Roundtrip, found 1 day ago
$210
Roundtrip
found 1 day ago
Select United flight, departing Fri, Mar 27 from O'Hare Intl. to Pittsburgh Intl., returning Wed, Apr 1, priced at $210 found 1 day ago
Wed, Apr 1 - Sun, Apr 5
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$213 Roundtrip, found 22 hours ago
$213
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Apr 1 from O'Hare Intl. to Pittsburgh Intl., returning Sun, Apr 5, priced at $213 found 22 hours ago
Wed, Apr 1 - Sun, Apr 5
ORD
O'Hare Intl.
PIT
Pittsburgh Intl.
$214 Roundtrip, found 22 hours ago
$214
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Apr 1 from O'Hare Intl. to Pittsburgh Intl., returning Sun, Apr 5, priced at $214 found 22 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.