United Flight 1859 Deals & Information (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 1859 Route Deals From $149

The cheapest prices found with in the last 7 days for return flights were $297 and $149 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 21 - Tue, Jul 28
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$297 Roundtrip, found 3 days ago
$297
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jul 21 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jul 28, priced at $297 found 3 days ago
Sat, Aug 29 - Wed, Sep 2
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$306 Roundtrip, found 8 hours ago
$306
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Aug 29 from Pittsburgh Intl. to George Bush Intercontinental, returning Wed, Sep 2, priced at $306 found 8 hours ago
Tue, Jul 21 - Tue, Jul 28
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$307 Roundtrip, found 3 days ago
$307
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jul 21 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jul 28, priced at $307 found 3 days ago
Thu, Jul 23 - Mon, Jul 27
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$309 Roundtrip, found 1 day ago
$309
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 23 from Pittsburgh Intl. to George Bush Intercontinental, returning Mon, Jul 27, priced at $309 found 1 day ago
Tue, Jun 16 - Thu, Jun 18
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$310 Roundtrip, found 18 hours ago
$310
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Jun 16 from Pittsburgh Intl. to George Bush Intercontinental, returning Thu, Jun 18, priced at $310 found 18 hours ago
Sat, Sep 5 - Sat, Sep 12
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$315 Roundtrip, found 4 days ago
$315
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 5 from Pittsburgh Intl. to George Bush Intercontinental, returning Sat, Sep 12, priced at $315 found 4 days ago
Sat, Aug 29 - Wed, Sep 2
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$316 Roundtrip, found 8 hours ago
$316
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Aug 29 from Pittsburgh Intl. to George Bush Intercontinental, returning Wed, Sep 2, priced at $316 found 8 hours ago
Thu, Jul 23 - Mon, Jul 27
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 23 from Pittsburgh Intl. to George Bush Intercontinental, returning Mon, Jul 27, priced at $319 found 1 day ago
Tue, Jul 21 - Tue, Jul 28
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$323 Roundtrip, found 3 days ago
$323
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jul 21 from Pittsburgh Intl. to George Bush Intercontinental, returning Tue, Jul 28, priced at $323 found 3 days ago
Sat, Sep 5 - Sat, Sep 12
PIT
Pittsburgh Intl.
IAH
George Bush Intercontinental
$325 Roundtrip, found 4 days ago
$325
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 5 from Pittsburgh Intl. to George Bush Intercontinental, returning Sat, Sep 12, priced at $325 found 4 days 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.