United Flight 3640 Deals & Information (2026/2027)

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United Flight 3640 Route Deals From

The cheapest prices found with in the last 7 days for return flights were $224 and for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 11 - Fri, Jun 12
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$224 Roundtrip, found 1 day ago
$224
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from Pearson Intl. to O'Hare Intl., returning Fri, Jun 12, priced at $224 found 1 day ago
Mon, May 25 - Fri, May 29
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$263 Roundtrip, found 4 days ago
$263
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 25 from Pearson Intl. to O'Hare Intl., returning Fri, May 29, priced at $263 found 4 days ago
Thu, Jun 11 - Fri, Jun 12
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from Pearson Intl. to O'Hare Intl., returning Fri, Jun 12, priced at $266 found 1 day ago
Fri, Apr 3 - Sat, Apr 4
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$276 Roundtrip, found 3 days ago
$276
Roundtrip
found 3 days ago
Select United flight, departing Fri, Apr 3 from Pearson Intl. to O'Hare Intl., returning Sat, Apr 4, priced at $276 found 3 days ago
Mon, May 25 - Fri, May 29
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$279 Roundtrip, found 4 days ago
$279
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 25 from Pearson Intl. to O'Hare Intl., returning Fri, May 29, priced at $279 found 4 days ago
Mon, May 25 - Fri, May 29
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$280 Roundtrip, found 4 days ago
$280
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 25 from Pearson Intl. to O'Hare Intl., returning Fri, May 29, priced at $280 found 4 days ago
Mon, May 25 - Fri, May 29
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$283 Roundtrip, found 4 days ago
$283
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 25 from Pearson Intl. to O'Hare Intl., returning Fri, May 29, priced at $283 found 4 days ago
Thu, Jun 11 - Fri, Jun 12
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from Pearson Intl. to O'Hare Intl., returning Fri, Jun 12, priced at $284 found 1 day ago
Fri, Apr 3 - Sat, Apr 4
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$287 Roundtrip, found 3 days ago
$287
Roundtrip
found 3 days ago
Select United flight, departing Fri, Apr 3 from Pearson Intl. to O'Hare Intl., returning Sat, Apr 4, priced at $287 found 3 days ago
Fri, Apr 3 - Sat, Apr 4
YYZ
Pearson Intl.
ORD
O'Hare Intl.
$299 Roundtrip, found 3 days ago
$299
Roundtrip
found 3 days ago
Select United flight, departing Fri, Apr 3 from Pearson Intl. to O'Hare Intl., returning Sat, Apr 4, priced at $299 found 3 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.