$194+ Cheap flights from Ottawa (YOW) to Houston
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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Find cheap flights from Ottawa to Houston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Ottawa to HoustonExplore the most affordable flight options available from Ottawa to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
Explore the most affordable flight options available from Ottawa to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:00 am -
1 stop15h 14m
Sun 9/208:25 pm -
1 stop26h 23m
Deal found 8/7![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:15 pm -
1 stop22h 40m
Wed 10/142:50 pm -
1 stop13h 45m
Deal found 8/9![WestJet logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:15 pm -
2 stops31h 15m
Fri 9/256:30 am -
1 stop11h 50m
Deal found 8/8![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:20 pm -
1 stop10h 20m
Sun 9/208:25 pm -
1 stop26h 23m
Deal found 8/8![Multiple Airlines logo]()
$410
This FlightHub deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
1 stop11h 35m
Fri 12/46:20 pm -
1 stop28h 25m
Deal found 8/8![WestJet logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:20 am -
1 stop16h 20m
Tue 9/154:21 pm -
2 stops22h 54m
Deal found 8/7![Multiple Airlines logo]()
$464
This Mytrip deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:20 am -
1 stop16h 20m
Tue 9/152:50 pm -
1 stop13h 45m
Deal found 8/7![WestJet logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:35 am -
1 stop15h 05m
Mon 10/128:44 pm -
2 stops42h 36m
Deal found 8/11![Multiple Airlines logo]()
$517
This Trip.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:20 pm -
1 stop10h 20m
Mon 10/126:30 am -
1 stop11h 50m
Deal found 8/11![WestJet logo]()
$522
This oojo deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:25 pm -
2 stops29h 14m
Tue 9/155:26 pm -
2 stops29h 54m
Deal found 8/7![WestJet logo]()
$748
This oojo deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:25 pm -
2 stops29h 38m
Wed 10/143:09 pm -
2 stops8h 11m
Deal found 8/9![WestJet logo]()
$753
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:25 pm -
2 stops29h 14m
Fri 10/22:25 pm -
2 stops8h 55m
Deal found 8/11![WestJet logo]()
$767
Best flights from Ottawa to HoustonDiscover carefully curated flight deals from Ottawa to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from Ottawa to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:15 pm -
1 stop22h 40m
Wed 10/142:50 pm -
1 stop13h 45m
Deal found 8/9![WestJet logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:20 am -
1 stop16h 20m
Tue 9/154:21 pm -
2 stops22h 54m
Deal found 8/7![Multiple Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:48 pm -
1 stop7h 34m
Mon 1/410:07 pm -
1 stop15h 05m
Deal found 8/8![United Airlines logo]()
$674
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:00 am -
1 stop9h 24m
Wed 9/95:41 pm -
2 stops24h 39m
Deal found 8/11![Multiple Airlines logo]()
$595
This WestJet deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:15 pm -
1 stop18h 40m
Sat 10/32:50 pm -
1 stop13h 45m
Deal found 8/11![WestJet logo]()
$649
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:35 am -
2 stops21h 59m
Mon 11/306:10 am -
1 stop9h 34m
Deal found 8/10![Multiple Airlines logo]()
$656
This oojo deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:25 pm -
2 stops29h 14m
Tue 9/155:26 pm -
2 stops29h 54m
Deal found 8/7![WestJet logo]()
$748
This oojo deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:25 pm -
2 stops29h 38m
Wed 10/143:09 pm -
2 stops8h 11m
Deal found 8/9![WestJet logo]()
$753
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:25 pm -
2 stops29h 14m
Fri 10/22:25 pm -
2 stops8h 55m
Deal found 8/11![WestJet logo]()
$767
This FlightHub deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:15 pm -
2 stops14h 45m
Fri 9/252:25 pm -
2 stops8h 55m
Deal found 8/8![WestJet logo]()
$808
This Justfly.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:40 am -
2 stops28h 50m
Fri 12/45:30 pm -
2 stops30h 12m
Deal found 8/8![WestJet logo]()
$827
This Justfly.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:55 am -
2 stops10h 30m
Sun 9/206:00 am -
2 stops10h 35m
Deal found 8/8![WestJet logo]()
$842
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:55 am -
2 stops16h 10m
Sun 8/306:00 am -
2 stops34h 35m
Deal found 8/11![WestJet logo]()
$880
This FlightHub deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:55 am -
2 stops10h 30m
Wed 9/911:01 am -
2 stops12h 19m
Deal found 8/10![WestJet logo]()
$896
This FlightHub deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:55 am -
2 stops30h 21m
Fri 8/281:13 pm -
2 stops10h 07m
Deal found 8/7![WestJet logo]()
$987
Last-minute flights from Ottawa to HoustonDiscover last-minute flight deals from Ottawa to Houston. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Ottawa to Houston. Data last updated August 12, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/302:30 pm -
2 stops32h 44m
Sat 9/56:30 am -
1 stop9h 45m
Deal found 8/8![Multiple Airlines logo]()
$523
This FlightHub deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:15 pm -
1 stop22h 40m
Sat 9/56:30 am -
1 stop9h 45m
Deal found 8/8![WestJet logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:20 am -
1 stop16h 20m
Tue 9/154:21 pm -
2 stops22h 54m
Deal found 8/7![Multiple Airlines logo]()
$464
This Mytrip deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:20 am -
1 stop16h 20m
Tue 9/152:50 pm -
1 stop13h 45m
Deal found 8/7![WestJet logo]()
$476
This oojo deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:25 pm -
2 stops29h 14m
Tue 9/155:26 pm -
2 stops29h 54m
Deal found 8/7![WestJet logo]()
$748
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:15 pm -
2 stops31h 15m
Fri 9/256:30 am -
1 stop11h 50m
Deal found 8/8![Multiple Airlines logo]()
$400
This FlightHub deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:15 pm -
2 stops14h 45m
Fri 9/252:25 pm -
2 stops8h 55m
Deal found 8/8![WestJet logo]()
$808
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:20 pm -
1 stop10h 20m
Sun 9/208:25 pm -
1 stop26h 23m
Deal found 8/8![Multiple Airlines logo]()
$410
This Justfly.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:25 pm -
2 stops11h 15m
Sun 9/202:50 pm -
2 stops19h 45m
Deal found 8/8![WestJet logo]()
$530
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:00 am -
1 stop15h 14m
Sun 9/208:25 pm -
1 stop26h 23m
Deal found 8/7![Multiple Airlines logo]()
$378
This FlightHub deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:25 pm -
2 stops26h 30m
Sun 9/202:50 pm -
2 stops19h 45m
Deal found 8/7![WestJet logo]()
$556
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:25 pm -
2 stops29h 14m
Fri 10/22:25 pm -
2 stops8h 55m
Deal found 8/11![WestJet logo]()
$767
One-way flights from Ottawa to HoustonSearch for one-way flight options from Ottawa to Houston. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from Ottawa to Houston. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 am -
1 stop10h 14m
Deal found 8/11![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:15 pm -
2 stops40h 02m
Deal found 8/11![Multiple Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:00 am -
2 stops16h 14m
Deal found 8/11![Multiple Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:00 am -
2 stops26h 02m
Deal found 8/11![Multiple Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 am -
2 stops33h 13m
Deal found 8/11![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/32:10 pm -
2 stops18h 10m
Deal found 8/11![Multiple Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:30 pm -
2 stops47h 19m
Deal found 8/9![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:20 pm -
3 stops47h 08m
Deal found 8/12![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am -
3 stops29h 28m
Deal found 8/10![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:55 am -
2 stops10h 35m
Deal found 8/10![WestJet logo]()
$397
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:55 am -
2 stops27h 55m
Deal found 8/11![WestJet logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:25 pm -
2 stops29h 14m
Deal found 8/11![WestJet logo]()
$426
Find flight deals from Ottawa to Houston
Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 12, 2026.
Round-trip from | $378 (Kiwi.com) |
|---|---|
One-way from | $194 (Kiwi.com) |
Popular in | September |
Cheapest in | October |
Average price | $847 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ottawa to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 12, 2026.
Use the filters below to find and compare flights from Ottawa to Houston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OttawaHouston
YOW Ottawa - IAH Houston George Bush Intcntl
YOWIAH
Ottawa
Fri 10/9
4:15 pm-1:55 pm
1 stop22h 40m
Houston George Bush Intcntl
Wed 10/14
2:50 pm-5:35 am
1 stop13h 45m
$384
OttawaHouston
YOW Ottawa - IAH Houston George Bush Intcntl
YOWIAH
Ottawa
Sun 9/13
7:20 am-10:40 pm
1 stop16h 20m
Houston George Bush Intcntl
Tue 9/15
4:21 pm-4:15 pm
2 stops22h 54m
$464
OttawaHouston
YOW Ottawa - IAH Houston George Bush Intcntl
YOWIAH
Ottawa
Mon 9/7
7:00 am-3:24 pm
1 stop9h 24m
Houston George Bush Intcntl
Wed 9/9
5:41 pm-7:20 pm
2 stops24h 39m
$595
OttawaHouston
YOW Ottawa - IAH Houston George Bush Intcntl
YOWIAH
Ottawa
Tue 9/29
8:15 pm-1:55 pm
1 stop18h 40m
Houston George Bush Intcntl
Sat 10/3
2:50 pm-5:35 am
1 stop13h 45m
$649
OttawaHouston
YOW Ottawa - IAH Houston George Bush Intcntl
YOWIAH
Ottawa
Sat 11/7
10:35 am-7:34 am
2 stops21h 59m
Houston George Bush Intcntl
Mon 11/30
6:10 am-4:44 pm
1 stop9h 34m
$656
OttawaHouston
YOW Ottawa - IAH Houston George Bush Intcntl
YOWIAH
Ottawa
Fri 12/25
2:48 pm-9:22 pm
1 stop7h 34m
Houston George Bush Intcntl
Mon 1/4
10:07 pm-2:12 pm
1 stop15h 05m
$674
OttawaHouston
YOW Ottawa - HOU Houston Hobby
YOWHOU
Ottawa
Sun 9/13
6:25 pm-10:39 pm
2 stops29h 14m
Houston Hobby
Tue 9/15
5:26 pm-12:20 am
2 stops29h 54m
$748
OttawaHouston
YOW Ottawa - HOU Houston Hobby
YOWHOU
Ottawa
Fri 10/9
6:25 pm-11:03 pm
2 stops29h 38m
Houston Hobby
Wed 10/14
3:09 pm-12:20 am
2 stops8h 11m
$753
OttawaHouston
YOW Ottawa - HOU Houston Hobby
YOWHOU
Ottawa
Fri 9/25
6:25 pm-10:39 pm
2 stops29h 14m
Houston Hobby
Fri 10/2
2:25 pm-12:20 am
2 stops8h 55m
$767
OttawaHouston
YOW Ottawa - HOU Houston Hobby
YOWHOU
Ottawa
Mon 9/14
8:15 pm-10:00 am
2 stops14h 45m
Houston Hobby
Fri 9/25
2:25 pm-12:20 am
2 stops8h 55m
$808
Showing 1-10 of 32 resultsSorted by cheapest first
Best time to book a flight from Ottawa to Houston
Have a flexible travel schedule? Discover the best time to fly to Houston from Ottawa with our price prediction graph.
YOW-HO1
YOW-IAH
YOW-HOU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ottawa to Houston
YOW-HO1
YOW-IAH
YOW-HOU
What is the cheapest month to book a flight from Ottawa to Houston?
Currently, October is the cheapest month in which you can book a flight from Ottawa to Houston (average of $512). Flying from Ottawa to Houston in August is currently the most expensive (average of $716). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ottawa to Houston?
Airfare is below average for this route at the moment.
Ottawa to Houston flights typically cost between $584 and $847 in September.The cheapest round-trip price found within the last 5 days was $378 on Multiple Airlines (Sep 18-Sep 20).
Reviews of airlines servicing Houston
Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated August 12, 2026.
See what other customers who have flown with United Airlines and Air Canada from Ottawa to Houston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Food
6.7
Overall
7.4
Comfort
7.3
Boarding
7.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentFERNANDO,Sep 2024
YYC - IAH
Entertainment
7.1
Food
6.7
Overall
7.4
Comfort
7.3
Boarding
7.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentFERNANDO,Sep 2024
YYC - IAH
Entertainment
7.1
Food
6.7
Overall
7.4
Comfort
7.3
Boarding
7.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentFERNANDO,Sep 2024
YYC - IAH
Related info for your journey
Find useful and relevant information for your journey from Ottawa to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ottawa to Houston
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Complete your trip
Complete your trip to Houston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ottawa to Houston by cabin class
Find flights from Ottawa to Houston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ottawa and Houston flights
Browse other Ottawa and Houston flight options. Last updated on August 12, 2026.
Other flights from Ottawa
Browse through other flights departing from Ottawa. Flights are based on user searches made on Cheapflights and were last updated on August 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Ottawa to Houston
Discover the top 2 airlines that operate flights from Ottawa to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$354 | Average$685 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$404 | Average$687 | FlexibilityNo cancel fee | On-time67% |