United Flight 4256 Deals & Information (2025/2026)

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United Flight 4256 Route Deals From $142

The cheapest prices found with in the last 7 days for return flights were $286 and $142 for one-way flights to Birmingham Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 18 - Tue, Sep 23
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$286 Roundtrip, found 9 hours ago
$286
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Sep 18 from George Bush Intercontinental to Birmingham Intl., returning Tue, Sep 23, priced at $286 found 9 hours ago
Sat, Jul 19 - Tue, Jul 22
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$290 Roundtrip, found 13 hours ago
$290
Roundtrip
found 13 hours ago
Select United flight, departing Sat, Jul 19 from George Bush Intercontinental to Birmingham Intl., returning Tue, Jul 22, priced at $290 found 13 hours ago
Thu, Jul 10 - Tue, Jul 15
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$315 Roundtrip, found 9 hours ago
$315
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Jul 10 from George Bush Intercontinental to Birmingham Intl., returning Tue, Jul 15, priced at $315 found 9 hours ago
Thu, Sep 18 - Tue, Sep 23
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$328 Roundtrip, found 9 hours ago
$328
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Sep 18 from George Bush Intercontinental to Birmingham Intl., returning Tue, Sep 23, priced at $328 found 9 hours ago
Wed, Jun 25 - Wed, Jul 2
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$332 Roundtrip, found 10 hours ago
$332
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Jun 25 from George Bush Intercontinental to Birmingham Intl., returning Wed, Jul 2, priced at $332 found 10 hours ago
Sat, Jul 19 - Tue, Jul 22
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$336 Roundtrip, found 13 hours ago
$336
Roundtrip
found 13 hours ago
Select United flight, departing Sat, Jul 19 from George Bush Intercontinental to Birmingham Intl., returning Tue, Jul 22, priced at $336 found 13 hours ago
Thu, Jul 3 - Mon, Jul 7
IAH
George Bush Intercontinental
BHM
Birmingham Intl.
$345 Roundtrip, found 4 days ago
$345
Roundtrip
found 4 days ago
Select United flight, departing Thu, Jul 3 from George Bush Intercontinental to Birmingham Intl., returning Mon, Jul 7, priced at $345 found 4 days 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.