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Direct flights from Houston to Ontario

Airlines Schedules Nearby airports that offer flights to ONT

IAH - ONT route map All flights from IAH to ONT non-stop. There are direct flights from George Bush Intcntl Houston (IAH), Texas, USA to Ontario International Airport (ONT), California, USA with United Airlines and Frontier Airlines. 14 weekly departures are currently scheduled on this route. Departure times range from 06:10 to 20:31 depending on the schedule period. The flight distance is 1339 miles (2154 km). Flight time ranges from 3 hours and 21 minutes to 3 hours and 44 minutes.

IAH
George Bush Intcntl Houston
USAHouston , USA
ONT
Ontario Airport
USAOntario , USA
IAH
George Bush Intcntl Houston
USAHouston , USA
Ontario Airport
USAOntario , USA
ONT
Flight time 3h 21min to 3h 44min
Updated Jul 13, 2026
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Airlines with non-stop routes:

United Airlines Star Alliance

Departure times vary between 16:47 and 20:31 • From Terminal C
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
7 flights/week
7 flights/week

Frontier Airlines Low-cost carrier

Departure times vary between 06:10 and 17:38 • From Terminal A
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
7 flights/week
7 flights/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Houston to Ontario with United Airlines

This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Aug 10
Tue
Aug 11
Wed
Aug 12
Thu
Aug 13
Fri
Aug 14
Sat
Aug 15
Sun
Aug 16
UA758
----
----
----
----
----
16:47
----
UA1563
20:31
----
----
20:30
----
----
20:30

The timetable & schedule information was updated at 2026-07-13

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Flight schedule from Houston to Ontario with Frontier Airlines

This is a weekly direct flight schedule for Frontier Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Aug 10
Tue
Aug 11
Wed
Aug 12
Thu
Aug 13
Fri
Aug 14
Sat
Aug 15
Sun
Aug 16
F93131
06:10
06:10
06:10
06:10
06:10
06:10
06:10

The timetable & schedule information was updated at 2026-07-13

RETURN SCHEDULE
CHECK PRICES
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Houston to Ontario scheduled departures

Select a date to see every published non-stop departure between IAH and ONT.

Monday
Mon
Aug 10
2 flights(2)
Tuesday
Tue
Aug 11
1 flights(1)
Wednesday
Wed
Aug 12
1 flights(1)
Thursday
Thu
Aug 13
2 flights(2)
Friday
Fri
Aug 14
1 flights(1)
Saturday
Sat
Aug 15
2 flights(2)
Sunday
Sun
Aug 16
2 flights(2)
Time
Airline
Flight
06:10
Frontier Airlines Frontier Airlines
F93131
20:31
United Airlines United Airlines
UA1563
06:10
Frontier Airlines Frontier Airlines
F93131
06:10
Frontier Airlines Frontier Airlines
F93131
06:10
Frontier Airlines Frontier Airlines
F93131
20:30
United Airlines United Airlines
UA1563
06:10
Frontier Airlines Frontier Airlines
F93131
06:10
Frontier Airlines Frontier Airlines
F93131
16:47
United Airlines United Airlines
UA758
06:10
Frontier Airlines Frontier Airlines
F93131
20:30
United Airlines United Airlines
UA1563
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IAH-ONT flight route
Route map from Houston, IAH to Ontario, ONT. The distance is 1339 miles or 2154 km.
Houston - Ontario direct flight map
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IAH - ONT route facts

  • Distance
    1339 miles (2154 km)
  • Flight time
    3 hours and 21 minutes to 3 hours and 44 minutes
  • Airlines
    United United
    Frontier Frontier
  • Airline alliances
    Star Alliance Low-cost carrier
  • Cabins
    Economy Business First
  • Hub airports
    United Airlines: IAH
  • Departure terminals
    United Airlines: Terminal C
    Frontier Airlines: Terminal A
  • Arrival terminals
    United Airlines: Terminal 2
  • Aircraft
    United Airlines: Boeing 737-900 Passenger, Airbus A320 and Boeing 737-800 Passenger
    Frontier Airlines: Airbus A320neo, Airbus A321neo and Airbus A320

Route FAQ

United Airlines and Frontier Airlines operate non-stop flights from IAH to ONT with 14 weekly departures.

Scheduled flight time from IAH to ONT ranges from 3 hours and 21 minutes to 3 hours and 44 minutes. The route covers 1339 miles (2154 km).

14 weekly departures are currently scheduled on this route, with published departure times ranging from 06:10 to 20:31 depending on the schedule period.

Departure terminals: United Airlines: Terminal C and Frontier Airlines: Terminal A. Arrival terminal: United Airlines: Terminal 2.

Economy, Business and First are currently scheduled on non-stop flights for this route.
Nearby airports that offer flights to Ontario (ONT)
From Hobby Airport (HOU)

7 flights per week

Direct flights from Houston to CA, USA
From Houston to San Francisco

SFO San Francisco International
From Houston to Sacramento

SMF Sacramento International
From Houston to San Jose

SJC Norman Y Mineta San Jose International
From Houston to Palm Springs

PSP Palm Springs International
From Houston to Los Angeles

LAX Los Angeles International
From Houston to Santa Ana

SNA John Wayne Arpt Orange Co
From Houston to San Diego

SAN San Diego International Airport
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