United Flight 4636 Deals & Information (2026/2027)

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United Flight 4636 Route Deals From $260

The cheapest prices found with in the last 7 days for return flights were $354 and $260 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$354 Roundtrip, found 3 days ago
$354
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $354 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$389 Roundtrip, found 3 days ago
$389
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $389 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$394 Roundtrip, found 3 days ago
$394
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $394 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$425 Roundtrip, found 3 days ago
$425
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $425 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$460 Roundtrip, found 3 days ago
$460
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $460 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$465 Roundtrip, found 3 days ago
$465
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $465 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$496 Roundtrip, found 3 days ago
$496
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $496 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$501 Roundtrip, found 3 days ago
$501
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $501 found 3 days ago
Tue, Oct 20 - Thu, Oct 22
MLI
Quad City Intl.
ORD
O'Hare Intl.
$525 Roundtrip, found 3 days ago
$525
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 20 from Quad City Intl. to O'Hare Intl., returning Thu, Oct 22, priced at $525 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$536 Roundtrip, found 3 days ago
$536
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $536 found 3 days ago
Fri, Sep 18 - Sun, Sep 20
MLI
Quad City Intl.
ORD
O'Hare Intl.
$541 Roundtrip, found 3 days ago
$541
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Quad City Intl. to O'Hare Intl., returning Sun, Sep 20, priced at $541 found 3 days ago

Frequently asked questions

What route does flight number UA4636 take?
UA4636 is used on a range of routes. More commonly, UA4636 flies direct from DEN to DFW. If you've booked a seat on this route, you'll be in the air for about 1 hour and 54 minutes.
What kind of plane is on flight number UA4636?
UA4636 is a flight number that is used on several routes. If you're booked on its most popular route, DEN to Dallas, TX Airport (DFW-Dallas-Fort Worth Intl.), there's a strong chance you'll be climbing aboard the Embraer 175.
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 UA4636 flight with Travelocity, please visit our Customer Service Portal.