$82+ Cheap flights from Ontario (ONT) to Pueblo, CO
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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — COS
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Pueblo 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Ontario to Pueblo are usually found in February or October, booked 69 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap flight deals from Ontario to Pueblo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to PuebloExplore the most affordable flight options available from Ontario to Pueblo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
Explore the most affordable flight options available from Ontario to Pueblo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Tue 9/2912:32 pm
DEN
- ONT
Nonstop2h 25m
Frontier
Deal found 6/5![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Thu 7/308:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 6/5![Frontier logo]()
$125
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
ONT
- DEN
Nonstop2h 26m
Frontier
Sat 8/2210:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Deal found 6/5![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 6/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:55 pm
ONT
- DEN
Nonstop2h 22m
Frontier
Mon 10/510:34 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 6/5![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/216:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Tue 7/2810:00 am
DEN
- ONT
1 stop6h 14m
Frontier
Deal found 6/5![Frontier logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 6/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
ONT
- DEN
Nonstop2h 26m
Frontier
Mon 8/248:44 am
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 6/6![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 6/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Wed 8/510:29 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 6/6![Frontier logo]()
$134
This Priceline deal was found by Cheapflights users on 6/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:35 pm
ONT
- DEN
Nonstop2h 22m
Frontier
Sat 11/712:15 pm
DEN
- ONT
Nonstop2h 25m
Frontier
Deal found 6/4![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 6/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:36 am
ONT
- DEN
1 stop9h 27m
Frontier
Wed 8/510:29 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 6/6![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/141:38 pm
ONT
- DEN
1 stop13h 10m
Frontier
Tue 7/218:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 6/4![Frontier logo]()
$139
This WAYA deal was found by Cheapflights users on 6/9. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/303:34 pm
ONT
- DEN
1 stop8h 04m
Frontier
Wed 7/110:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Deal found 6/9![Frontier logo]()
$140
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:43 pm
ONT
- DEN
1 stop13h 48m
Frontier
Tue 9/1510:34 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 6/5![Frontier logo]()
$141
Best flights from Ontario to PuebloDiscover carefully curated flight deals from Ontario to Pueblo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
Discover carefully curated flight deals from Ontario to Pueblo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:35 am
ONT
- DEN
2 stops8h 00m
Southwest
Tue 9/229:00 am
DEN
- ONT
Nonstop2h 15m
Southwest
Deal found 6/5![Southwest logo]()
$178
This Delta deal was found by Cheapflights users on 6/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:00 am
ONT
- DEN
1 stop5h 04m
Delta
Thu 8/135:35 am
DEN
- ONT
1 stop4h 13m
Delta
Deal found 6/4![Delta logo]()
$211
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:00 am
ONT
- DEN
Nonstop2h 20m
United Airlines
Thu 8/67:20 pm
DEN
- ONT
Nonstop2h 22m
United Airlines
Deal found 6/9![United Airlines logo]()
$253
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:27 pm
ONT
- DEN
2 stops18h 53m
Alaska Airlines
Mon 8/247:30 pm
DEN
- ONT
1 stop16h 34m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$478
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:00 am
ONT
- DEN
Nonstop2h 20m
United Airlines
Tue 8/47:20 pm
DEN
- ONT
Nonstop2h 22m
United Airlines
Deal found 6/9![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:35 pm
ONT
- DEN
1 stop3h 45m
Southwest
Fri 7/247:45 am
DEN
- ONT
2 stops6h 40m
Southwest
Deal found 6/4![Southwest logo]()
$329
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:35 am
ONT
- DEN
1 stop4h 05m
Southwest
Sat 8/223:05 pm
DEN
- ONT
Nonstop2h 20m
Southwest
Deal found 6/9![Southwest logo]()
$331
This Delta deal was found by Cheapflights users on 6/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:00 am
ONT
- DEN
1 stop4h 53m
Delta
Mon 7/65:40 am
DEN
- ONT
1 stop4h 10m
Delta
Deal found 6/4![Delta logo]()
$410
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:00 pm
ONT
- DEN
1 stop5h 00m
Southwest
Thu 8/209:45 am
DEN
- ONT
2 stops6h 20m
Southwest
Deal found 6/8![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Sat 9/121:56 pm
ONT
- DEN
1 stop5h 11m
United Airlines
Sun 9/137:45 am
DEN
- ONT
1 stop5h 27m
United Airlines
Deal found 6/4![United Airlines logo]()
$421
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:00 am
ONT
- DEN
2 stops5h 10m
Southwest
Sat 11/712:05 pm
DEN
- ONT
1 stop5h 50m
Southwest
Deal found 6/9![Southwest logo]()
$386
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/192:10 pm
ONT
- DEN
2 stops6h 10m
Southwest
Sun 8/233:25 pm
DEN
- ONT
1 stop3h 50m
Southwest
Deal found 6/9![Southwest logo]()
$396
Last-minute flights from Ontario to PuebloDiscover last-minute flight deals from Ontario to Pueblo. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pueblo. Data last updated June 10, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Tue 9/2912:32 pm
DEN
- ONT
Nonstop2h 25m
Frontier
Deal found 6/5![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/141:38 pm
ONT
- DEN
1 stop13h 10m
Frontier
Tue 7/218:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 6/4![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/216:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Tue 7/2810:00 am
DEN
- ONT
1 stop6h 14m
Frontier
Deal found 6/4![Frontier logo]()
$131
This Frontier deal was found by Cheapflights users on 6/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Sat 7/2510:29 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 6/4![Frontier logo]()
$152
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Tue 7/215:00 am
ONT
- DEN
Nonstop2h 20m
United Airlines
Tue 7/287:20 pm
DEN
- ONT
Nonstop2h 22m
United Airlines
Deal found 6/4![United Airlines logo]()
$153
This Frontier deal was found by Cheapflights users on 6/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:49 am
ONT
- DEN
Nonstop2h 21m
Frontier
Thu 7/308:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 6/5![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 6/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:49 am
ONT
- DEN
Nonstop2h 21m
Frontier
Wed 8/510:29 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 6/6![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 6/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:49 am
ONT
- DEN
Nonstop2h 21m
Frontier
Mon 8/38:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 6/6![Frontier logo]()
$150
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Thu 7/308:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 6/5![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/291:38 pm
ONT
- DEN
1 stop7h 03m
Frontier
Sat 8/18:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 6/4![Frontier logo]()
$149
One-way flights from Ontario to PuebloSearch for one-way flight options from Ontario to Pueblo. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
Search for one-way flight options from Ontario to Pueblo. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Super.com deal was found by Cheapflights users on 6/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Deal found 6/5![Frontier logo]()
$82
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:20 pm
ONT
- DEN
1 stop4h 00m
Southwest
Deal found 6/5![Southwest logo]()
$83
This Frontier deal was found by Cheapflights users on 6/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:49 am
ONT
- DEN
Nonstop2h 21m
Frontier
Deal found 6/5![Frontier logo]()
$84
This Trip.com deal was found by Cheapflights users on 6/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:34 pm
ONT
- DEN
1 stop11h 24m
Frontier
Deal found 6/8![Frontier logo]()
$87
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/74:10 pm
ONT
- DEN
2 stops6h 00m
Southwest
Deal found 6/5![Southwest logo]()
$88
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:10 pm
ONT
- DEN
2 stops6h 10m
Southwest
Deal found 6/5![Southwest logo]()
$93
This Super.com deal was found by Cheapflights users on 6/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:55 pm
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 6/8![Frontier logo]()
$95
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Deal found 6/5![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 6/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:35 pm
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 6/5![Frontier logo]()
$101
This Trip.com deal was found by Cheapflights users on 6/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:33 pm
ONT
- DEN
1 stop7h 09m
Frontier
Deal found 6/7![Frontier logo]()
$102
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:40 am
ONT
- DEN
1 stop4h 13m
Delta
Deal found 6/5![Delta logo]()
$104
Find flight deals from Ontario to Pueblo
Keep the following information in mind while searching for Ontario to Pueblo flight deals. Data was last updated June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $124 (Cheapflightsfares) |
One-way from | $82 (Super.com) |
Popular in | June |
Cheapest in | February |
Average price | $286 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Pueblo 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 June 10, 2026.
Use the filters below to find and compare flights from Ontario to Pueblo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Sat 9/19
8:35 am-5:35 pm
2 stops8h 00m
Denver Intl
Tue 9/22
9:00 am-10:15 am
Nonstop2h 15m
$178
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Mon 8/10
6:00 am-12:04 pm
1 stop5h 04m
Denver Intl
Thu 8/13
5:35 am-8:48 am
1 stop4h 13m
$211
Quickest round-trip
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Tue 7/28
5:00 am-8:20 am
Nonstop2h 20m
Denver Intl
Thu 8/6
7:20 pm-8:42 pm
Nonstop2h 22m
$253
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Tue 7/28
5:00 am-8:20 am
Nonstop2h 20m
Denver Intl
Tue 8/4
7:20 pm-8:42 pm
Nonstop2h 22m
$293
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Tue 7/21
6:35 pm-11:20 pm
1 stop3h 45m
Denver Intl
Fri 7/24
7:45 am-1:25 pm
2 stops6h 40m
$329
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 8/19
8:35 am-1:40 pm
1 stop4h 05m
Denver Intl
Sat 8/22
3:05 pm-4:25 pm
Nonstop2h 20m
$331
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 8/12
3:00 pm-9:00 pm
1 stop5h 00m
Denver Intl
Thu 8/20
9:45 am-3:05 pm
2 stops6h 20m
$346
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Thu 11/5
5:00 am-11:10 am
2 stops5h 10m
Denver Intl
Sat 11/7
12:05 pm-4:55 pm
1 stop5h 50m
$386
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 8/19
2:10 pm-9:20 pm
2 stops6h 10m
Denver Intl
Sun 8/23
3:25 pm-6:15 pm
1 stop3h 50m
$396
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Tue 6/30
6:00 am-11:53 am
1 stop4h 53m
Denver Intl
Mon 7/6
5:40 am-8:50 am
1 stop4h 10m
$410
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Ontario to Pueblo
Have a flexible travel schedule? Discover the best time to fly to Pueblo from Ontario with our price prediction graph.
ONT-DEN
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 Ontario to Pueblo
ONT-PU5
ONT-DEN
How much does it cost to fly round-trip from Ontario to Pueblo?
Reviews of airlines servicing Pueblo
Get insights into the airlines that provide service to Pueblo. 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 Pueblo. Reviews last updated June 10, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andFrontier from Ontario to Pueblo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Pueblo. 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 Ontario to Pueblo
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Complete your trip
Complete your trip to Pueblo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Pueblo by cabin class
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Ontario and Pueblo flights
Browse other Ontario and Pueblo flight options. Last updated on June 10, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on June 10, 2026.
Popular flight searches
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Ontario to Pueblo flights
Consider these flights traveling from Ontario to Pueblo.
Top 3 airlines flying from Ontario to Pueblo
Discover the top 3 airlines that operate flights from Ontario to Pueblo. 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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$172 | Average$273 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$381 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$236 | Average$396 | FlexibilityNo cancel fee | On-time63% |