United Flight UA3903 Deals & Information (2025/2026)

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United Flight 3903 Route Deals From $75

The cheapest prices found with in the last 7 days for return flights were $147 and $75 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 - Sat, Oct 4
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$147 Roundtrip, just found
$147
Roundtrip
just found
Select United flight, departing Wed, Oct 1 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sat, Oct 4, priced at $147 just found
Wed, Oct 1 - Sat, Oct 4
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$150 Roundtrip, just found
$150
Roundtrip
just found
Select United flight, departing Wed, Oct 1 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sat, Oct 4, priced at $150 just found
Sat, Aug 30 - Wed, Sep 3
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$154 Roundtrip, found 3 hours ago
$154
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Aug 30 from Newark Liberty Intl. Airport to O'Hare Intl., returning Wed, Sep 3, priced at $154 found 3 hours ago
Thu, Aug 28 - Sat, Sep 6
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$159 Roundtrip, found 2 hours ago
$159
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 28 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sat, Sep 6, priced at $159 found 2 hours ago
Sat, Aug 16 - Fri, Aug 22
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$165 Roundtrip, found 21 hours ago
$165
Roundtrip
found 21 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 21 hours ago
Thu, Oct 16 - Mon, Oct 20
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$167 Roundtrip, found 5 hours ago
$167
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Oct 16 from Newark Liberty Intl. Airport to O'Hare Intl., returning Mon, Oct 20, priced at $167 found 5 hours ago
Wed, Oct 1 - Sat, Oct 4
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$171 Roundtrip, just found
$171
Roundtrip
just found
Select United flight, departing Wed, Oct 1 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sat, Oct 4, priced at $171 just found

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.