United Flight 3903 Deals & Information (2025/2026)

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United Flight 3903 Route Deals From $76

The cheapest prices found with in the last 7 days for return flights were $147 and $76 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 1 - Wed, Oct 22
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$147 Roundtrip, found 1 day ago
$147
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 1 from Newark Liberty Intl. Airport to O'Hare Intl., returning Wed, Oct 22, priced at $147 found 1 day ago
Wed, Sep 3 - Mon, Sep 8
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$151 Roundtrip, found 4 days ago
$151
Roundtrip
found 4 days ago
Select United flight, departing Wed, Sep 3 from Newark Liberty Intl. Airport to O'Hare Intl., returning Mon, Sep 8, priced at $151 found 4 days ago
Tue, Sep 9 - Sun, Sep 14
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$159 Roundtrip, found 1 hour ago
$159
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Sep 9 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sun, Sep 14, priced at $159 found 1 hour ago
Sat, Aug 16 - Fri, Aug 22
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$165 Roundtrip, found 17 hours ago
$165
Roundtrip
found 17 hours ago
Select United flight, departing Sat, Aug 16 from Newark Liberty Intl. Airport to O'Hare Intl., returning Fri, Aug 22, priced at $165 found 17 hours ago
Thu, Oct 16 - Mon, Oct 20
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$167 Roundtrip, just found
$167
Roundtrip
just found
Select United flight, departing Thu, Oct 16 from Newark Liberty Intl. Airport to O'Hare Intl., returning Mon, Oct 20, priced at $167 just found
Wed, Oct 1 - Wed, Oct 22
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$171 Roundtrip, found 1 day ago
$171
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 1 from Newark Liberty Intl. Airport to O'Hare Intl., returning Wed, Oct 22, priced at $171 found 1 day ago

Frequently asked questions

What route does flight number UA3903 take?
UA3903 jets between ATW and ORD and flies direct. This service takes 1 hour and 9 minutes.
How often is UA3903 on time?
For those flying with United Airlines flight number UA3903 from ATW to O'Hare Airport, 88% of these services arrive on time. If your plane is delayed, expect to wait around 17 minutes on average. Thanks to this air carrier's top-notch service, this trip has a star rating of 4.2.
What kind of plane is on flight number UA3903?
The Bombardier CRJ is the type of plane usually used for flight number UA3903. Typically, this flight heads off from ATW and lands at ORD.
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 UA3903 flight with Travelocity, please visit our Customer Service Portal.