United Flight 404 Deals & Information (2026/2027)

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United Flight 404 Route Deals From $129

The cheapest prices found with in the last 7 days for return flights were $404 and $129 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$404 Roundtrip, found 1 day ago
$404
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $404 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$435 Roundtrip, found 1 day ago
$435
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $435 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$450 Roundtrip, found 1 day ago
$450
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $450 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$465 Roundtrip, found 1 day ago
$465
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $465 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$476 Roundtrip, found 1 day ago
$476
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $476 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$490 Roundtrip, found 1 day ago
$490
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $490 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$507 Roundtrip, found 1 day ago
$507
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $507 found 1 day ago
Sat, Jun 6 - Sat, Jun 13
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$507 Roundtrip, found 2 days ago
$507
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jun 6 from San Antonio Intl. to George Bush Intercontinental, returning Sat, Jun 13, priced at $507 found 2 days ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$515 Roundtrip, found 1 day ago
$515
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $515 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
SAT
San Antonio Intl.
IAH
George Bush Intercontinental
$521 Roundtrip, found 1 day ago
$521
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from San Antonio Intl. to George Bush Intercontinental, returning Sun, Jun 14, priced at $521 found 1 day ago

Frequently asked questions

What route does flight number UA404 take?
UA404 is used on a range of routes. Most commonly, UA404 flies straight from Denver Intl. Airport (DEN) to John Wayne Airport (SNA). If you have a ticket on this route, you'll be in the air for around 2 hours and 28 minutes.
What kind of plane is on flight number UA404?
If you're on flight UA404 from DEN to SNA, there's an excellent chance you'll be jetting off on an Airbus A320. Flight UA404 serves numerous routes, but this is the busiest.
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 UA404 flight with Travelocity, please visit our Customer Service Portal.