United Flight UA5420 Deals & Information (2025/2026)

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United Flight 5420 Route Deals From $118

The cheapest prices found with in the last 7 days for return flights were $245 and $118 for one-way flights to Preston Smith Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 29 - Mon, Sep 1
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$245 Roundtrip, found 6 days ago
$245
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 29 from George Bush Intercontinental to Preston Smith Intl., returning Mon, Sep 1, priced at $245 found 6 days ago
Fri, Oct 24 - Mon, Oct 27
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$256 Roundtrip, found 3 days ago
$256
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from George Bush Intercontinental to Preston Smith Intl., returning Mon, Oct 27, priced at $256 found 3 days ago
Thu, Jul 17 - Sat, Jul 19
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$265 Roundtrip, found 2 days ago
$265
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 17 from George Bush Intercontinental to Preston Smith Intl., returning Sat, Jul 19, priced at $265 found 2 days ago
Fri, Oct 24 - Mon, Oct 27
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$270 Roundtrip, found 3 days ago
$270
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from George Bush Intercontinental to Preston Smith Intl., returning Mon, Oct 27, priced at $270 found 3 days ago
Thu, Jul 17 - Sat, Jul 19
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 17 from George Bush Intercontinental to Preston Smith Intl., returning Sat, Jul 19, priced at $278 found 2 days ago
Sat, Jul 19 - Mon, Jul 21
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$289 Roundtrip, found 3 hours ago
$289
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Jul 19 from George Bush Intercontinental to Preston Smith Intl., returning Mon, Jul 21, priced at $289 found 3 hours ago
Wed, Jul 9 - Sun, Jul 13
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$297 Roundtrip, found 3 days ago
$297
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jul 9 from George Bush Intercontinental to Preston Smith Intl., returning Sun, Jul 13, priced at $297 found 3 days ago
Sat, Jul 19 - Mon, Jul 21
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$299 Roundtrip, found 3 hours ago
$299
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Jul 19 from George Bush Intercontinental to Preston Smith Intl., returning Mon, Jul 21, priced at $299 found 3 hours ago
Fri, Oct 24 - Mon, Oct 27
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$301 Roundtrip, found 3 days ago
$301
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from George Bush Intercontinental to Preston Smith Intl., returning Mon, Oct 27, priced at $301 found 3 days ago
Wed, Jul 9 - Sun, Jul 13
IAH
George Bush Intercontinental
LBB
Preston Smith Intl.
$306 Roundtrip, found 3 days ago
$306
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jul 9 from George Bush Intercontinental to Preston Smith Intl., returning Sun, Jul 13, priced at $306 found 3 days ago

Frequently asked questions

What route does flight number UA5420 take?
Flight number UA5420 operates non-stop from DIA airport to Tucson Intl. Airport (TUS). During this trip, you can expect to be in the air for around 2 hours and 3 minutes. Book ahead to secure your favorite seat.
How often is UA5420 on time?
About 73% of flight number UA5420 services touch down on time --- so consider leaving a bit of wiggle room in your travel plans. If there's a delay, the regular wait time is approximately 19 minutes. Take this into account if you need to make a connecting flight or someone is picking you up from the airport. This service has a 1.9-star rating.
What kind of plane is on flight number UA5420?
The Bombardier CRJ is the aircraft type most frequently used for flight number UA5420. Usually, this flight takes off from Denver Intl. Airport (DEN) and lands at Tucson, AZ Airport (TUS-Tucson Intl.).
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 UA5420 flight with Travelocity, please visit our Customer Service Portal.