United Flight 4256 Deals & Information (2025/2026)

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United Flight 4256 Route Deals From $127

The cheapest prices found with in the last 7 days for return flights were $288 and $127 for one-way flights to Birmingham Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 31 - Sun, Nov 2
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$288 Roundtrip, found 6 days ago
$288
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 31 from George Bush Intercontinental to Birmingham Intl., returning Sun, Nov 2, priced at $288 found 6 days ago
Tue, Jul 22 - Sun, Jul 27
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$314 Roundtrip, found 4 days ago
$314
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jul 22 from George Bush Intercontinental to Birmingham Intl., returning Sun, Jul 27, priced at $314 found 4 days ago
Thu, Jul 3 - Mon, Jul 7
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$345 Roundtrip, found 3 days ago
$345
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jul 3 from George Bush Intercontinental to Birmingham Intl., returning Mon, Jul 7, priced at $345 found 3 days ago
Mon, Jun 16 - Sun, Jun 22
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$376 Roundtrip, found 18 hours ago
$376
Roundtrip
found 18 hours ago
Select United flight, departing Mon, Jun 16 from George Bush Intercontinental to Birmingham Intl., returning Sun, Jun 22, priced at $376 found 18 hours ago
Wed, Jun 11 - Thu, Jun 12
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$382 Roundtrip, found 18 hours ago
$382
Roundtrip
found 18 hours ago
Select United flight, departing Wed, Jun 11 from George Bush Intercontinental to Birmingham Intl., returning Thu, Jun 12, priced at $382 found 18 hours ago

Frequently asked questions

What route does flight number UA4256 take?
UA4256 flies directly from CMH to IAD in 1 hour and 19 minutes. It can be used on other routes though, some of which could be multi-stop journeys. Keep this in mind when locking in your seat to avoid any mix-ups.
What kind of plane is on flight number UA4256?
If you’ve booked a ticket on flight UA4256 from Columbus, OH Airport (CMH-John Glenn Columbus Intl.) to IAD, you’ll likely be jetting off on the Embraer ERJ. This flight number serves more than one route, but this is the most common one.
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 UA4256 flight with Travelocity, please visit our Customer Service Portal.