United Flight 4256 Deals & Information (2026/2027)

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United Flight 4256 Route Deals From $269

The cheapest prices found with in the last 7 days for return flights were $299 and $269 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Nov 6 - Wed, Nov 11
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 6 from Northwest Arkansas Regional to George Bush Intercontinental, returning Wed, Nov 11, priced at $299 found 2 days ago
Fri, Nov 6 - Sat, Nov 7
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$317 Roundtrip, found 2 days ago
$317
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 6 from Northwest Arkansas Regional to George Bush Intercontinental, returning Sat, Nov 7, priced at $317 found 2 days ago
Tue, Dec 29 - Mon, Jan 4
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$319 Roundtrip, found 8 hours ago
$319
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Dec 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Mon, Jan 4, priced at $319 found 8 hours ago
Sat, Nov 7 - Sun, Nov 8
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$325 Roundtrip, found 12 hours ago
$325
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Nov 7 from Northwest Arkansas Regional to George Bush Intercontinental, returning Sun, Nov 8, priced at $325 found 12 hours ago
Thu, Oct 29 - Thu, Nov 5
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$332 Roundtrip, found 6 days ago
$332
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Thu, Nov 5, priced at $332 found 6 days ago
Mon, Nov 16 - Tue, Nov 24
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$342 Roundtrip, found 2 days ago
$342
Roundtrip
found 2 days ago
Select United flight, departing Mon, Nov 16 from Northwest Arkansas Regional to George Bush Intercontinental, returning Tue, Nov 24, priced at $342 found 2 days ago
Fri, Nov 6 - Wed, Nov 11
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$343 Roundtrip, found 2 days ago
$343
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 6 from Northwest Arkansas Regional to George Bush Intercontinental, returning Wed, Nov 11, priced at $343 found 2 days ago
Tue, Dec 29 - Mon, Jan 4
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$345 Roundtrip, found 8 hours ago
$345
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Dec 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Mon, Jan 4, priced at $345 found 8 hours ago
Fri, Nov 6 - Sat, Nov 7
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$354 Roundtrip, found 2 days ago
$354
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 6 from Northwest Arkansas Regional to George Bush Intercontinental, returning Sat, Nov 7, priced at $354 found 2 days ago
Fri, Nov 6 - Sat, Nov 7
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$355 Roundtrip, found 2 days ago
$355
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 6 from Northwest Arkansas Regional to George Bush Intercontinental, returning Sat, Nov 7, priced at $355 found 2 days ago
Thu, Oct 29 - Thu, Nov 5
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$357 Roundtrip, found 6 days ago
$357
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Thu, Nov 5, priced at $357 found 6 days ago
Tue, Dec 29 - Mon, Jan 4
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$363 Roundtrip, found 8 hours ago
$363
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Dec 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Mon, Jan 4, priced at $363 found 8 hours ago
Thu, Oct 29 - Thu, Nov 5
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$369 Roundtrip, found 6 days ago
$369
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Thu, Nov 5, priced at $369 found 6 days ago
Thu, Oct 29 - Thu, Nov 5
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$373 Roundtrip, found 6 days ago
$373
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Thu, Nov 5, priced at $373 found 6 days ago
Tue, Dec 29 - Mon, Jan 4
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$374 Roundtrip, found 8 hours ago
$374
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Dec 29 from Northwest Arkansas Regional to George Bush Intercontinental, returning Mon, Jan 4, priced at $374 found 8 hours ago
Mon, Nov 16 - Tue, Nov 24
XNA
Northwest Arkansas Regional
IAH
George Bush Intercontinental
$379 Roundtrip, found 2 days ago
$379
Roundtrip
found 2 days ago
Select United flight, departing Mon, Nov 16 from Northwest Arkansas Regional to George Bush Intercontinental, returning Tue, Nov 24, priced at $379 found 2 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.