United Flight 1903 Deals & Information (2025/2026)

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United Flight 1903 Route Deals From $539

The cheapest prices found with in the last 7 days for return flights were $311 and $539 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 10 - Thu, Jul 24
GUA
La Aurora Intl.
IAH
George Bush Intercontinental
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 10 from La Aurora Intl. to George Bush Intercontinental, returning Thu, Jul 24, priced at $311 found 1 day ago

Frequently asked questions

What route does flight number UA1903 take?
UA1903 jets between La Aurora Intl. Airport and George Bush Intercontinental Airport (IAH) directly. This trip takes 2 hours and 59 minutes.
How often is UA1903 on time?
Roughly 93% of UA1903 flights run according to scheduled times — so if you’re jetting from La Aurora Intl. Airport (GUA) to IAH, you can rest easy knowing that you will make it to your destination ASAP. On the odd occasion that your United Airlines trip is late, the average wait is approximately 5 minutes. Thanks to the air carrier’s top-quality service, this route has a 4.55-star rating.
What kind of plane is on flight number UA1903?
The route for flight number UA1903 is most commonly Guatemala City Airport (GUA-La Aurora Intl.) to Houston Airport, and the Boeing 737-800 is the type of plane you’ll probably be flying with.
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 UA1903 flight with Travelocity, please visit our Customer Service Portal.