United Flight 4390 Deals & Information (2025/2026)

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United Flight 4390 Route Deals From $59

The cheapest prices found with in the last 7 days for return flights were $117 and $59 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 2 - Tue, Dec 9
MEM
Memphis Intl.
ORD
O'Hare Intl.
$117 Roundtrip, found 16 hours ago
$117
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Dec 2 from Memphis Intl. to O'Hare Intl., returning Tue, Dec 9, priced at $117 found 16 hours ago
Fri, Nov 14 - Tue, Nov 18
MEM
Memphis Intl.
ORD
O'Hare Intl.
$133 Roundtrip, found 15 hours ago
$133
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Nov 14 from Memphis Intl. to O'Hare Intl., returning Tue, Nov 18, priced at $133 found 15 hours ago
Sat, Oct 18 - Tue, Oct 21
MEM
Memphis Intl.
ORD
O'Hare Intl.
$184 Roundtrip, found 4 hours ago
$184
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Oct 18 from Memphis Intl. to O'Hare Intl., returning Tue, Oct 21, priced at $184 found 4 hours ago
Wed, Nov 5 - Thu, Nov 6
MEM
Memphis Intl.
ORD
O'Hare Intl.
$185 Roundtrip, found 3 days ago
$185
Roundtrip
found 3 days ago
Select United flight, departing Wed, Nov 5 from Memphis Intl. to O'Hare Intl., returning Thu, Nov 6, priced at $185 found 3 days ago
Fri, Oct 10 - Mon, Oct 13
MEM
Memphis Intl.
ORD
O'Hare Intl.
$187 Roundtrip, found 1 day ago
$187
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 10 from Memphis Intl. to O'Hare Intl., returning Mon, Oct 13, priced at $187 found 1 day ago

Frequently asked questions

What route does flight number UA4390 take?
UA4390 is used on a number of routes. Typically, UA4390 flies directly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to O'Hare Intl. Airport (ORD). If this is your route, you'll be up above the clouds for about 2 hours and 2 minutes.
What kind of plane is on flight number UA4390?
It's likely you'll be setting off on a Canadair (Bombardier) Regional Jet 550 if you've booked a fare from BWI to Chicago, IL Airport (ORD-O'Hare Intl.), a common route for flight UA4390.
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 UA4390 flight with Travelocity, please visit our Customer Service Portal.