Ontario to Houston ONT → HOU, IAH
Ontario International Airport (ONT) → William P. Hobby Airport (HOU), George Bush Intercontinental Airport (IAH)
The cheapest return found recently is $363 with Frontier Airlines, 24 Oct – 3 Nov, found yesterday. The cheapest one-way found recently is $238 with Southwest Airlines, 22 Apr 2027, found 3 days ago.
Return
The cheapest return fare on each of 7 departure dates is usually $233 to $344.
Cheapest return found recently
$363
24 Oct – 3 Nov · Frontier Airlines
Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH)
Leaves 10:04 a.m. · Return leaves 6:40 a.m. · 12 h 57 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
$317
11 Feb 2027 – 15 Feb 2027 · United Airlines
Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH)
Leaves 6:00 a.m. · Return leaves 8:00 p.m. · 6 h 54 min of travel, both ways together
out nonstop, back nonstop
found 6 days ago
Found recently, and the cheapest we hold
$363 24 Oct – 3 Novfound yesterdaySee prices for these dates
$152 2 Nov – 4 Novfound 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $152 to $267.
At $363, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 7 departure dates from 24 Oct to 11 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 10-night return fares leaving within 3 days of 24 Oct to compare.
Every date we hold
10 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 24 Oct – 3 Nov | $363 | Frontier Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 27 Oct – 2 Nov | $324 | Frontier Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 29 Oct – 4 Nov | $311 | Frontier Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | out 1 stop, back nonstop | found 4 days ago | See prices for these dates |
| 2 Nov – 4 Nov | $152 | Frontier Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 5 Nov – 5 Nov | $533 | American Airlines | Ontario International Airport (ONT) → William P. Hobby Airport (HOU) | out 1 stop, back nonstop | found 2 days ago | See prices for these dates |
| 10 Dec – 14 Dec | $154 | Frontier Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 11 Feb 2027 – 15 Feb 2027 | $317 | United Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $152.
Airlines on the cheapest dates: Frontier Airlines, American Airlines, United Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $89 to $166.
Cheapest one-way found recently
$238
22 Apr 2027 · Southwest Airlines
Ontario International Airport (ONT) → William P. Hobby Airport (HOU)
Leaves 1:40 p.m. · 3 h 10 min trip
nonstop
found 3 days ago
Cheapest nonstop one-way
$238
22 Apr 2027 · Southwest Airlines
Ontario International Airport (ONT) → William P. Hobby Airport (HOU)
Leaves 1:40 p.m. · 3 h 10 min trip
nonstop
found 3 days ago
Found recently, and the cheapest we hold
$238 22 Apr 2027found 3 days agoOpen this trip
$84 9 Novfound 4 days agoOpen this trip
What have prices looked like?
Over 20 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $84 to $230.
At $238, the cheapest one-way found recently is above that range.
20 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 9 Nov to 22 Apr 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 22 Apr 2027 to compare.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 9 Nov | $84 | Frontier Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | 1 stop | found 4 days ago | Open this trip |
| 2 Dec | $94 | Frontier Airlines | Ontario International Airport (ONT) → George Bush Intercontinental Airport (IAH) | 1 stop | found 6 days ago | Open this trip |
| 22 Apr 2027 | $238 | Southwest Airlines | Ontario International Airport (ONT) → William P. Hobby Airport (HOU) | nonstop | found 3 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $84.
Airlines on the cheapest dates: Frontier Airlines, Southwest Airlines.
Premium cabin fares from Ontario to Houston
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 24 Oct – 3 Nov in another cabin: Premium economy · Business · First
Today's prices for 22 Apr 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ontario to Houston?
Return
Fares 14 to 29 days before departure were typically 55% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $404 | $347 | +120% | 12 |
| 7–13 days | $324 | $211 | +76% | 13 |
| 14–29 days | $184 | $152 | Cheapest seen | 23 |
| 30–59 days | $263 | $154 | +43% | 23 |
| 60–89 days | $308 | $181 | +67% | 24 |
| 90–179 days | $496 | $317 | +170% | 13 |
One-way
The cheapest fares were 14 to 29 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (20 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $91 | $84 | Cheapest seen | 10 |
| 90–179 days | $129 | $111 | +43% | 8 |
| 180+ days | $230 | $230 | +154% | 11 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Los Angeles → Houston
56 km from Ontario
$274
$89 less than flying from Ontario
24 Oct – 3 Nov · LAX → IAH · out nonstop, back nonstop
found yesterday
Long Beach → Houston
60 km from Ontario
$1,293
$930 more than flying from Ontario
24 Oct – 3 Nov · LGB → IAH · out 1 stop, back 1 stop
found yesterday
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Los Angeles → Houston
56 km from Ontario
$236
$2 less than flying from Ontario
22 Apr 2027 · LAX → IAH · nonstop
found 3 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 24 Oct – 3 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work