United Flight UA2378 Deals & Information (2025/2026)

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United Flight 2378 Route Deals From $79

The cheapest prices found with in the last 7 days for return flights were $160 and $79 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 11 - Tue, Nov 18
BDL
Bradley Intl.
ORD
O'Hare Intl.
$160 Roundtrip, found 1 day ago
$160
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 11 from Bradley Intl. to O'Hare Intl., returning Tue, Nov 18, priced at $160 found 1 day ago
Tue, Oct 28 - Thu, Oct 30
BDL
Bradley Intl.
ORD
O'Hare Intl.
$170 Roundtrip, found 2 days ago
$170
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 28 from Bradley Intl. to O'Hare Intl., returning Thu, Oct 30, priced at $170 found 2 days ago
Thu, Dec 4 - Sun, Dec 7
BDL
Bradley Intl.
ORD
O'Hare Intl.
$194 Roundtrip, found 3 days ago
$194
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Bradley Intl. to O'Hare Intl., returning Sun, Dec 7, priced at $194 found 3 days ago
Tue, Nov 11 - Tue, Nov 18
BDL
Bradley Intl.
ORD
O'Hare Intl.
$195 Roundtrip, found 1 day ago
$195
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 11 from Bradley Intl. to O'Hare Intl., returning Tue, Nov 18, priced at $195 found 1 day ago
Tue, Nov 11 - Mon, Nov 17
BDL
Bradley Intl.
ORD
O'Hare Intl.
$197 Roundtrip, found 3 days ago
$197
Roundtrip
found 3 days ago
Select United flight, departing Tue, Nov 11 from Bradley Intl. to O'Hare Intl., returning Mon, Nov 17, priced at $197 found 3 days ago
Tue, Oct 28 - Thu, Oct 30
BDL
Bradley Intl.
ORD
O'Hare Intl.
$206 Roundtrip, found 2 days ago
$206
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 28 from Bradley Intl. to O'Hare Intl., returning Thu, Oct 30, priced at $206 found 2 days ago
Fri, Oct 31 - Sun, Nov 2
BDL
Bradley Intl.
ORD
O'Hare Intl.
$212 Roundtrip, found 1 day ago
$212
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Bradley Intl. to O'Hare Intl., returning Sun, Nov 2, priced at $212 found 1 day ago
Wed, Dec 3 - Thu, Dec 4
BDL
Bradley Intl.
ORD
O'Hare Intl.
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 3 from Bradley Intl. to O'Hare Intl., returning Thu, Dec 4, priced at $218 found 1 day ago
Sat, Nov 8 - Tue, Nov 11
BDL
Bradley Intl.
ORD
O'Hare Intl.
$219 Roundtrip, found 5 hours ago
$219
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Nov 8 from Bradley Intl. to O'Hare Intl., returning Tue, Nov 11, priced at $219 found 5 hours ago
Tue, Nov 11 - Mon, Nov 17
BDL
Bradley Intl.
ORD
O'Hare Intl.
$222 Roundtrip, found 3 days ago
$222
Roundtrip
found 3 days ago
Select United flight, departing Tue, Nov 11 from Bradley Intl. to O'Hare Intl., returning Mon, Nov 17, priced at $222 found 3 days ago

Frequently asked questions

What route does flight number UA2378 take?
You'll be arriving into SFO from BOS if you've booked a ticket on flight number UA2378. You'll be in the air for 6 hours and 20 minutes during this journey. It's also good to note that the service conveniently travels non-stop.
What terminal does UA2378 fly out of?
Flights to and from BOS and San Francisco Intl. Airport (SFO) are served by UA2378, and travelers booked on this route usually depart from Terminal B.
What kind of plane is on flight number UA2378?
The Boeing 757-200 is the kind of plane that's generally used for flight number UA2378. Typically, this flight takes off from Logan Intl. Airport (BOS) and lands at San Francisco Intl. Airport (SFO).
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 UA2378 flight with Travelocity, please visit our Customer Service Portal.