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IAH to ONT

Houston to Ontario Flights

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

Fare checked before payment All fees shown upfront Transparent cancellation policy 24×7 booking support
Lowest fare₹13,697Delta Air Lines
Fastest3h 35mgate to gate
Options found95flights on this route
Find your flight IAH ONT

Available Flights & Fares

Compare fares, timings and baggage. Pick the flight that suits your trip.

Prices in INR
95 flight options

Fares are checked again before payment.

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Sort by
Delta Air Lines
Delta Air Lines
DL-1583
07:10
2026-10-29
Houston (IAH)George Bush Intercontinental
7H :26 M
1 Stop
SLC · 2h 15m Salt Lake City (SLC), United States
12:36
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1563
20:05
2026-10-29
Houston (IAH)George Bush Intercontinental
3H :35 M
Non Stop
21:40
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-2551
05:00
2026-10-29
Houston (IAH)George Bush Intercontinental
6H :35 M
1 Stop
DFW · 2h 00m Dallas (DFW), United States
09:35
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-700
06:00
2026-10-29
Houston (IAH)George Bush Intercontinental
5H :35 M
1 Stop
DFW · 0h 56m Dallas (DFW), United States
09:35
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-371
17:35
2026-10-29
Houston (IAH)George Bush Intercontinental
7H :13 M
1 Stop
SFO · 1h 22m San Francisco (SFO), United States
22:48
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1069
05:29
2026-10-29
Houston (IAH)George Bush Intercontinental
7H :37 M
1 Stop
ATL · 0h 59m Atlanta (ATL), United States
11:06
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-700
06:00
2026-10-29
Houston (IAH)George Bush Intercontinental
7H :53 M
1 Stop
DFW · 3h 16m Dallas (DFW), United States
11:53
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-2357
14:45
2026-10-29
Houston (IAH)George Bush Intercontinental
5H :58 M
1 Stop
PHX · 1h 43m Phoenix (PHX), United States
18:43
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-3354
07:00
2026-10-29
Houston (IAH)George Bush Intercontinental
7H :14 M
1 Stop
PHX · 2h 41m Phoenix (PHX), United States
12:14
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 3 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-2112
07:20
2026-10-29
Houston (IAH)George Bush Intercontinental
7H :10 M
1 Stop
DEN · 2h 13m Denver (DEN), United States
12:30
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2764
12:40
2026-10-29
Houston (IAH)George Bush Intercontinental
9H :35 M
1 Stop
SFO · 3h 48m San Francisco (SFO), United States
20:15
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-589
14:50
2026-10-29
Houston (IAH)George Bush Intercontinental
7H :25 M
1 Stop
SFO · 1h 40m San Francisco (SFO), United States
20:15
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-382
16:20
2026-10-29
Houston (IAH)George Bush Intercontinental
8H :28 M
1 Stop
SFO · 2h 35m San Francisco (SFO), United States
22:48
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-2357
14:45
2026-10-29
Houston (IAH)George Bush Intercontinental
10H :08 M
1 Stop
PHX · 5h 53m Phoenix (PHX), United States
22:53
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-3026
07:00
2026-10-29
Houston (IAH)George Bush Intercontinental
6H :53 M
1 Stop
DFW · 2h 16m Dallas (DFW), United States
11:53
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-3026
07:00
2026-10-29
Houston (IAH)George Bush Intercontinental
8H :30 M
1 Stop
DFW · 3h 56m Dallas (DFW), United States
13:30
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-6185
18:23
2026-10-29
Houston (IAH)George Bush Intercontinental
6H :30 M
1 Stop
PHX · 2h 00m Phoenix (PHX), United States
22:53
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
Delta Air Lines
Delta Air Lines
DL-1299
19:27
2026-10-29
Houston (IAH)George Bush Intercontinental
6H :28 M
1 Stop
SLC · 1h 20m Salt Lake City (SLC), United States
23:55
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2744
08:30
2026-10-29
Houston (IAH)George Bush Intercontinental
9H :03 M
1 Stop
SFO · 3h 09m San Francisco (SFO), United States
15:33
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2358
10:35
2026-10-29
Houston (IAH)George Bush Intercontinental
6H :58 M
1 Stop
SFO · 1h 07m San Francisco (SFO), United States
15:33
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 6 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-3354
07:00
2026-10-29
Houston (IAH)George Bush Intercontinental
10H :16 M
1 Stop
PHX · 5h 55m Phoenix (PHX), United States
15:16
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-2438
19:02
2026-10-29
Houston (IAH)George Bush Intercontinental
6H :50 M
1 Stop
DFW · 2h 16m Dallas (DFW), United States
23:52
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces

Recommended hotels in Ontario

Stay options near the arrival city for the same travel date.

Search hotels
AA
American Airlines
AA-3481
20:06
2026-10-29
Houston (IAH)George Bush Intercontinental
5H :46 M
1 Stop
DFW · 1h 02m Dallas (DFW), United States
23:52
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-2744
08:30
2026-10-29
Houston (IAH)George Bush Intercontinental
16H :18 M
1 Stop
SFO · 10h 29m San Francisco (SFO), United States
22:48
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2358
10:35
2026-10-29
Houston (IAH)George Bush Intercontinental
14H :13 M
1 Stop
SFO · 8h 27m San Francisco (SFO), United States
22:48
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2764
12:40
2026-10-29
Houston (IAH)George Bush Intercontinental
12H :08 M
1 Stop
SFO · 6h 18m San Francisco (SFO), United States
22:48
2026-10-29
Ontario (ONT)Ontario International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
No flights match the selected filters. Clear filters or open full search.

Airfare Highlights

From flights departing on Thu, 29 Oct 2026.

Lowest fare ₹13,697 Delta Air Lines 07:10
Earliest departure ₹18,991 American Airlines 05:00
Shortest duration ₹18,242 United Airlines 20:05
Night 00:00-05:59 ₹18,991 American Airlines at 05:00
Morning 06:00-11:59 ₹13,697 Delta Air Lines at 07:10
Afternoon 12:00-17:59 ₹18,991 United Airlines at 17:35
Evening 18:00-23:59 ₹18,242 United Airlines at 20:05

Departure & Arrival Airport Details

Houston (IAH)

George Bush Intercontinental

United States

GMT -6

Latitude: 29.984399795532227

Longitude: -95.34140014648438

Ontario (ONT)

Ontario International

United States

GMT -8

Latitude: 34.055999755859375

Longitude: -117.60099792480469

Distance: Houston (IAH), United States to Ontario (ONT), United States - 2,142.26 km
Flights shown for 29 Oct 2026. View all flights opens the complete search result.
Route forecast

Weather in Houston and Ontario

Live forecast for both cities, 12 Oct to 15 Oct.

Departure city

Houston

Thu, 15 Oct
31°CClear skyLow 23°
94% humidity 6 km/h wind 0.4 mm rain
  • Mon30° / 20°
  • Tue31° / 21°
  • Wed31° / 23°
Arrival city

Ontario

Thu, 15 Oct
22°CClear skyLow 15°
62% humidity
  • Mon23° / 14°
  • Tue16° / 11°
  • Wed18° / 11°

Forecast data from MET Norway, CC BY 4.0.

Smart travel dates

Holidays and peak dates for Ontario

Fares and hotel rates usually run higher around these dates. Booking earlier or moving your trip by a day or two often costs less.

Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).

  • 12OctColumbus DayMonday
  • 12OctColumbus DayMonday
  • 12OctIndigenous Peoples' DayMonday
  • 11NovVeterans DayWednesday
  • 26NovThanksgiving DayThursday
  • 25DecChristmas DayFriday

Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here, so check the exact date for your travel year.

Compare your journey

How to travel Houston to Ontario

Ways to make this trip that you can book on FlyX, compared by price and journey time.

OptionFromJourney timeAvailabilityAction
Non-stop flight Fastest₹18,2423h 35m1 flight
Connecting flight₹13,697Longer, includes a stop94 options

Air distance is about 2,142 km. 5 airlines operate this route.

Road distance and coach duration are approximate estimates from the air distance, not a timetable.

Airlines flying from Houston to Ontario

Compare fares, stops, baggage and refundability across the airlines flying this route.

United Airlines Flights

from ₹18,24250 flights
Fares from
₹18,242
Non-stop
1 in these results
Departures
50 in the list above

American Airlines Flights

from ₹18,99123 flights
Fares from
₹18,991
Non-stop
None in these results
Departures
23 in the list above

Delta Air Lines Flights

from ₹13,6978 flights
Fares from
₹13,697
Non-stop
None in these results
Departures
8 in the list above

Alaska Airlines Flights

from ₹47,0118 flights
Fares from
₹47,011
Non-stop
None in these results
Departures
8 in the list above

Qatar Airways Flights

from ₹181,0956 flights
Fares from
₹181,095
Non-stop
None in these results
Departures
6 in the list above

Route Overview & Flight Facts

Fastest flight duration3h 35m · United Airlines
First departure of the day05:00 · American Airlines
Last departure of the day21:52 · United Airlines
Flight options found95
Direct / non-stop options1
Airport codesHouston–IAH, Ontario–ONT

Fares and timings are indicative. The exact price is confirmed with the airline when you search.

Flight Schedule, Timings & Airfare Insights

Daily Flight Schedule & Travel Duration

The search for Thu, 29 Oct found 95 flight options, 1 of them non-stop. The first flight leaves around 05:00 and the last around 21:52. The fastest flight takes about 3h 35m.

Morning vs Evening Departure Fares

Lowest fare by departure window: Morning from ₹13,697, Evening from ₹18,242, Night from ₹18,991, Afternoon from ₹18,991. These observations do not predict the cheapest departure window on other dates.

Cheapest Airfare & Best Time to Book

Search your travel dates to compare current fares. Prices change with airline seat availability.

One-Way vs Round-Trip Fare Comparison

Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.

Online Web Check-In & Boarding Pass

Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.

How to Book Cheap Flights on FlyX

  1. 1
    Enter your travel details

    Choose one-way or round-trip, pick your dates and travellers in the search form above.

  2. 2
    Compare search results

    Sort or filter the Houston–Ontario results by price, departure time, stops and airline.

  3. 3
    Open the fare choices

    Check baggage allowance and refundability for each fare type before continuing.

  4. 4
    Review the final price

    Review the refreshed supplier fare, coupon saving and selected payment-method fee before you pay.

  5. 5
    Pay securely

    UPI, cards, net banking and wallets supported; payment and ticket issuance have separate statuses. If issuance is pending, follow the booking status; the confirmed ticket is sent after issuance.

Why Book Your Flight with FlyX?

Compare the available Houston to Ontario options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.

Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.

Fare checked before paymentCoupon eligibility checkedBooking status trackingBooking support

Exclusive Flight Offers & Promo Coupons

Coupon codeOfferMax saving
FLYX20Up to 20% Off on Flights₹1,500

Check coupon eligibility and the final discount on the review page before you pay. View full terms.

Frequently Asked Questions

Is it worth booking Houston to Ontario flights in advance?

There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. On the Houston to Ontario dates shown on this page, the lowest fare is on a Thursday at ₹13,697. This can change from week to week.

How far is Houston from Ontario by air?

The direct air distance between Houston (IAH) and Ontario (ONT) is about 2,142 km. Actual flight time varies with the routing the airline files and with winds on the day.

Are there non-stop flights from IAH to ONT?

Yes. 1 non-stop flight is listed on this page for Houston to Ontario. Use the Stops filter to see only those.

Which airlines fly Houston to Ontario?

United Airlines, American Airlines, Delta Air Lines, Alaska Airlines and 1 other are listed on this route for the dates shown here. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.

How long is the flight from Houston to Ontario?

The quickest non-stop Houston to Ontario flight on this page takes about 3h 35m. Journeys with a stop take longer, since the total includes the layover.

What is the baggage allowance on Houston to Ontario flights?

Allowance is set by the airline and the fare you pick, not by the route. Fares on this page include 2 Pieces. Cabin baggage is counted separately, and the exact allowance for the fare you choose is shown in the fare conditions before payment.

What is the cheapest Houston to Ontario flight fare?

The lowest Houston to Ontario fare on this page is ₹13,697. Fares on the same dates run up to ₹196,405, depending on airline, timing and fare type. Airline prices change often, so search your dates for the current fare.

What time do Houston to Ontario flights depart?

On the dates shown here, the first departure is around 05:00 and the last around 21:52, local time at Houston. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.

Why does the price change after clicking Book Now?

Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay. If it has moved, you see the new figure before any payment.

Before you book this route

Check the airport codes IAH–ONT, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.

Where these fares come from

The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price. Run a search to see what is available for your own dates.

Fares shown are for departures on .

Check official travel requirements

Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.

For payment, ticket issuance or a change request, see FlyX support. About FlyX.

United States travel guide for Indian travellers

Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.

Read the United States travel guide

What to Expect When Booking Your Flight

The IAH to ONT cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 2,142.26 km.

Before you book

Compare nearby dates

The date strip opens the complete search result for the route and selected date.

Use filters

Shortlist by price, stops, departure time and refundable fare preference.

Check fare choices

Continue to Booking opens the verified fare choices, including baggage and refundability, before review.

Lowest Houston to Ontario airfare, in 30 days and in 90 days

Cheapest FareFareDateAirlineDeparture
Lowest Airfare ₹13,697 29/10/2026 Delta Air Lines 07:10
Cheapest Airfare Within 30 Days ₹13,423 06/11/2026 Delta Air Lines 07:10
Cheapest Airfare Within 90 Days ₹13,012 05/01/2027 Delta Air Lines 07:10

Book Houston to Ontario Flight Tickets on FlyX

FlyX lists each Houston to Ontario flight in these results with its fare, departure time, stops, layover airport and baggage, so you can compare air tickets side by side. To find a cheap ticket, sort by price and check what baggage the fare includes. The fare is checked with the airline again before you pay.

Houston to Ontario Flight Distance, Duration and Time

The aerial distance between Houston and Ontario is about 2,142 KM. In these results, journey times range from 3h 35m to 70h 38m. Flights with a layover take longer because the total includes the connection time.

Houston to Ontario Flight Schedule and Timing

The search for these dates returned 95 flight options, 1 of them non-stop. The first departure from Houston is at 05:00 and the last is at 21:52. Flights leave from George Bush Intercontinental and land at Ontario International.

Flight Route Details & Analysis

Flight DetailsInformation
RouteHouston to Ontario
Aerial Distance2,142 KM
Flight Duration3h 35m - 70h 38m
Airport CodesHouston - IAH, Ontario - ONT
Total Flights Available95 flights1 direct94 with layovers
First Flight DepartureDeparts at 05:00
Last Flight DepartureDeparts at 21:52
Early Morning Flights (12 AM - 8 AM)19 flights0 direct19 with layovers
Morning Flights (8 AM - 12 PM)23 flights0 direct23 with layovers
Afternoon Flights (12 PM - 4 PM)25 flights0 direct25 with layovers
Evening Flights (4 PM - 8 PM)21 flights0 direct21 with layovers
Night Flights (8 PM - 12 AM)7 flights1 direct6 with layovers

Airport Information & Terminals

IAH: Houston airport. Houston airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.

ONT: Ontario airport. Ontario airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.

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