United Flight AA4637 Deals & Information (2025/2026)

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United Flight 4637 Route Deals From $122

The cheapest prices found with in the last 7 days for return flights were $242 and $122 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 9 - Tue, Sep 30
ALB
Albany Intl.
ORD
O'Hare Intl.
$242 Roundtrip, found 2 days ago
$242
Roundtrip
found 2 days ago
Select United flight, departing Tue, Sep 9 from Albany Intl. to O'Hare Intl., returning Tue, Sep 30, priced at $242 found 2 days ago
Tue, Sep 9 - Tue, Sep 30
ALB
Albany Intl.
ORD
O'Hare Intl.
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select United flight, departing Tue, Sep 9 from Albany Intl. to O'Hare Intl., returning Tue, Sep 30, priced at $262 found 2 days ago
Wed, Sep 24 - Fri, Sep 26
ALB
Albany Intl.
ORD
O'Hare Intl.
$273 Roundtrip, found 11 hours ago
$273
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 24 from Albany Intl. to O'Hare Intl., returning Fri, Sep 26, priced at $273 found 11 hours ago
Sat, Jul 19 - Sun, Jul 27
ALB
Albany Intl.
ORD
O'Hare Intl.
$317 Roundtrip, found 1 hour ago
$317
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Jul 19 from Albany Intl. to O'Hare Intl., returning Sun, Jul 27, priced at $317 found 1 hour ago

Frequently asked questions

What route does flight number UA4637 take?
UA4637 takes a few routes. The most frequently flown is between Arcata - Eureka Airport (ACV) and San Francisco Airport, which is a direct flight. This flight takes roughly 1 hour and 3 minutes. However, you might find other flights with the same number that have one or more stops.
What kind of plane is on flight number UA4637?
It's likely you'll be enjoying the services of the Embraer 175 if you've booked a ticket on flight number UA4637 from Eureka, CA Airport (ACV-Arcata - Eureka) to San Francisco Airport. It's the most commonly used aircraft type on this busy route.
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 UA4637 flight with Travelocity, please visit our Customer Service Portal.