United Flight 4518 Deals & Information (2025/2026)

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United Flight 4518 Route Deals From $47

The cheapest prices found with in the last 7 days for return flights were $91 and $47 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 5 - Tue, Nov 18
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$91 Roundtrip, found 1 hour ago
$91
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Nov 5 from O'Hare Intl. to Lambert-St. Louis Intl., returning Tue, Nov 18, priced at $91 found 1 hour ago
Wed, Aug 20 - Thu, Aug 21
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$93 Roundtrip, found 3 days ago
$93
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 20 from O'Hare Intl. to Lambert-St. Louis Intl., returning Thu, Aug 21, priced at $93 found 3 days ago
Wed, Nov 5 - Tue, Nov 18
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$109 Roundtrip, found 1 hour ago
$109
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Nov 5 from O'Hare Intl. to Lambert-St. Louis Intl., returning Tue, Nov 18, priced at $109 found 1 hour ago
Wed, Nov 5 - Wed, Nov 19
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$121 Roundtrip, just found
$121
Roundtrip
just found
Select United flight, departing Wed, Nov 5 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, Nov 19, priced at $121 just found
Wed, Nov 5 - Wed, Nov 19
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$123 Roundtrip, just found
$123
Roundtrip
just found
Select United flight, departing Wed, Nov 5 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, Nov 19, priced at $123 just found
Wed, Nov 5 - Wed, Nov 19
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$138 Roundtrip, just found
$138
Roundtrip
just found
Select United flight, departing Wed, Nov 5 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, Nov 19, priced at $138 just found
Wed, Aug 20 - Thu, Aug 21
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$144 Roundtrip, found 3 days ago
$144
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 20 from O'Hare Intl. to Lambert-St. Louis Intl., returning Thu, Aug 21, priced at $144 found 3 days ago
Mon, Oct 6 - Fri, Oct 10
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$149 Roundtrip, found 5 days ago
$149
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 6 from O'Hare Intl. to Lambert-St. Louis Intl., returning Fri, Oct 10, priced at $149 found 5 days ago
Wed, Aug 20 - Thu, Aug 21
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$153 Roundtrip, found 3 days ago
$153
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 20 from O'Hare Intl. to Lambert-St. Louis Intl., returning Thu, Aug 21, priced at $153 found 3 days ago
Wed, Nov 5 - Wed, Nov 19
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$159 Roundtrip, just found
$159
Roundtrip
just found
Select United flight, departing Wed, Nov 5 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, Nov 19, priced at $159 just found
Wed, Nov 5 - Wed, Nov 19
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$166 Roundtrip, just found
$166
Roundtrip
just found
Select United flight, departing Wed, Nov 5 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, Nov 19, priced at $166 just found
Fri, Sep 19 - Sun, Sep 21
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day ago
Select United flight, departing Fri, Sep 19 from O'Hare Intl. to Lambert-St. Louis Intl., returning Sun, Sep 21, priced at $174 found 1 day ago

Frequently asked questions

What route does flight number UA4518 take?
UA4518 takes around 1 hour and 15 minutes to jet directly from Chicago, IL Airport (ORD-O'Hare Intl.) to CID. Sure, there's magic in the destination, but half the fun is in the journey!
What terminal does UA4518 fly out of?
Direct flights between O'Hare Airport and Cedar Rapids Airport are served by UA4518, and those traveling on this route typically leave from Terminal 1.
What kind of plane is on flight number UA4518?
Get set to step aboard a Canadair (Bombardier) Regional Jet 550 if you're traveling on flight UA4518. Almost all flights from O'Hare Airport to Eastern Iowa Airport (CID) use this type of aircraft.
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 UA4518 flight with Travelocity, please visit our Customer Service Portal.