Book United Ontario to Houston flight deals from $720

Roundtrip

One-way

Multi-city

From

Departure

Return

Travelers

Enter to select travel class and passengers

Changed bag rules and optional services

Search flights from Ontario to Houston (ONT - IAH)

July

Friday 13th

Return Saturday 28th

from$ 808*Viewed: 1 day ago

Tuesday 24th

Return Wednesday 8th

from$ 808*Viewed: 1 day ago

Friday 27th

Return Saturday 11th

from$ 808*Viewed: 1 day ago

August

Tuesday 14th

Return Wednesday 29th

from$ 720*Viewed: 1 day ago

Wednesday 22nd

Return Thursday 6th

from$ 720*Viewed: 1 day ago

Tuesday 28th

Return Wednesday 12th

from$ 720*Viewed: 1 day ago

September

Saturday 1st

Return Sunday 16th

from$ 764*Viewed: 1 day ago

Tuesday 4th

Return Wednesday 19th

from$ 764*Viewed: 1 day ago

Monday 10th

Return Tuesday 25th

from$ 720*Viewed: 1 day ago

**Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply..

Houston skyscrapers border a grassy park

Plan ahead for flights from Ontario to Houston

from

Type

Dates

Price*

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Tue 14 Aug 2018
Return Wed 29 Aug 2018

from$ 720*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Tue 21 Aug 2018
Return Wed 5 Sep 2018

from$ 720*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Wed 22 Aug 2018
Return Thu 6 Sep 2018

from$ 720*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Mon 27 Aug 2018
Return Tue 11 Sep 2018

from$ 720*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Tue 28 Aug 2018
Return Wed 12 Sep 2018

from$ 720*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Mon 10 Sep 2018
Return Tue 25 Sep 2018

from$ 720*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Mon 6 Aug 2018
Return Tue 21 Aug 2018

from$ 764*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Fri 10 Aug 2018
Return Sat 25 Aug 2018

from$ 764*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Mon 13 Aug 2018
Return Tue 28 Aug 2018

from$ 764*Viewed: 1 day ago

Ontario (ONT)

to Houston (IAH)

Roundtrip

Depart Wed 15 Aug 2018
Return Thu 30 Aug 2018

from$ 764*Viewed: 1 day ago

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Houston

86 °FThursday06/21/2018

84 °FFriday06/22/2018

86 °FSaturday06/23/2018

89 °FSunday06/24/2018

90 °FMonday06/25/2018

89 °FTuesday06/26/2018

88 °FWednesday06/27/2018