United Flight 4639 Deals & Information (2025/2026)

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United Flight 4639 Route Deals From $77

The cheapest prices found with in the last 7 days for return flights were $432 and $77 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 25 - Mon, Jul 28
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$432 Roundtrip, found 5 days ago
$432
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Mon, Jul 28, priced at $432 found 5 days ago
Fri, Jul 25 - Mon, Jul 28
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$492 Roundtrip, found 5 days ago
$492
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Mon, Jul 28, priced at $492 found 5 days ago
Fri, Jul 25 - Mon, Jul 28
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$576 Roundtrip, found 5 days ago
$576
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Mon, Jul 28, priced at $576 found 5 days ago
Fri, Jul 25 - Mon, Jul 28
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$583 Roundtrip, found 5 days ago
$583
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Mon, Jul 28, priced at $583 found 5 days ago
Fri, Jul 25 - Sun, Jul 27
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$613 Roundtrip, found 3 hours ago
$613
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Sun, Jul 27, priced at $613 found 3 hours ago
Fri, Jul 25 - Sun, Jul 27
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$665 Roundtrip, found 3 hours ago
$665
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Sun, Jul 27, priced at $665 found 3 hours ago
Fri, Jul 25 - Sun, Jul 27
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$698 Roundtrip, found 3 hours ago
$698
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Sun, Jul 27, priced at $698 found 3 hours ago
Fri, Jul 25 - Sun, Jul 27
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$740 Roundtrip, found 3 hours ago
$740
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Sun, Jul 27, priced at $740 found 3 hours ago
Fri, Jul 25 - Sun, Jul 27
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$750 Roundtrip, found 3 hours ago
$750
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Sun, Jul 27, priced at $750 found 3 hours ago
Fri, Jul 25 - Sun, Jul 27
CRP
Corpus Christi Intl.
IAH
George Bush Intercontinental
$797 Roundtrip, found 3 hours ago
$797
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Jul 25 from Corpus Christi Intl. to George Bush Intercontinental, returning Sun, Jul 27, priced at $797 found 3 hours ago

Frequently asked questions

What route does flight number UA4639 take?
UA4639 is used on a range of routes. Typically, UA4639 flies directly from Rick Husband Amarillo Intl. Airport (AMA) to Houston Airport. If you've booked a seat on this route, you'll be airborne for 1 hour and 46 minutes.
What kind of plane is on flight number UA4639?
There's a strong chance you'll be on a Bombardier CRJ if you're going from Rick Husband Amarillo Intl. Airport (AMA) to IAH, a popular route for flight number UA4639.
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 UA4639 flight with Travelocity, please visit our Customer Service Portal.