United Flight 1859 Deals & Information (2026/2027)

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United Flight 1859 Route Deals From $139

The cheapest prices found with in the last 7 days for return flights were $277 and $139 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 2 - Tue, Jun 9
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$277 Roundtrip, found 10 hours ago
$277
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Jun 2 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jun 9, priced at $277 found 10 hours ago
Wed, Jun 10 - Tue, Jun 16
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$284 Roundtrip, found 2 days ago
$284
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jun 10 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jun 16, priced at $284 found 2 days ago
Tue, Jun 2 - Tue, Jun 9
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$287 Roundtrip, found 10 hours ago
$287
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Jun 2 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jun 9, priced at $287 found 10 hours ago
Tue, Jun 2 - Tue, Jun 9
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$296 Roundtrip, found 10 hours ago
$296
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Jun 2 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jun 9, priced at $296 found 10 hours ago
Tue, Jun 2 - Tue, Jun 9
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$302 Roundtrip, found 10 hours ago
$302
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Jun 2 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jun 9, priced at $302 found 10 hours ago
Tue, Jun 9 - Fri, Jun 12
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$303 Roundtrip, found 5 hours ago
$303
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Jun 9 from Pittsburgh Intl. to George Bush Intercontinental, returning Fri, Jun 12, priced at $303 found 5 hours ago
Tue, Jun 2 - Tue, Jun 9
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$306 Roundtrip, found 10 hours ago
$306
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Jun 2 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jun 9, priced at $306 found 10 hours ago
Tue, May 19 - Tue, May 26
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$310 Roundtrip, found 5 days ago
$310
Roundtrip
found 5 days ago
Select United flight, departing Tue, May 19 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, May 26, priced at $310 found 5 days ago
Wed, Jun 10 - Tue, Jun 16
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$312 Roundtrip, found 2 days ago
$312
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jun 10 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jun 16, priced at $312 found 2 days ago
Sat, May 23 - Tue, May 26
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$313 Roundtrip, found 8 hours ago
$313
Roundtrip
found 8 hours ago
Select United flight, departing Sat, May 23 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, May 26, priced at $313 found 8 hours ago

Frequently asked questions

What route does flight number UA1859 take?
UA1859 jets from DFW to Houston, TX Airport (IAH-George Bush Intercontinental) and is a direct flight. This trip generally takes 1 hour and 4 minutes.
How often is UA1859 on time?
Around 50% of United Airlines flight number UA1859 planes arrive on time — so allow a little space in your itinerary. If you experience a delay, the standard wait time is about 39 minutes. Be aware of this if you need to catch a connecting journey or your friend is meeting you at the airport. This route has a star rating of 0.6.
What terminal does UA1859 fly out of?
Flight number UA1859 runs between DFW Airport and Houston, TX Airport (IAH-George Bush Intercontinental), and those booked on this flight usually depart from Terminal E.
What kind of plane is on flight number UA1859?
The route for flight number UA1859 is nearly always DFW to IAH, and the Boeing 737-900 is the type of aircraft you'll probably be jetting off 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 UA1859 flight with Travelocity, please visit our Customer Service Portal.