$379+ Cheap flights from Duluth to Ontario (DLH - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — ONT
Oct 15 — Oct 221
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Duluth to Ontario 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.Cheap flight deals from Duluth to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Duluth to OntarioExplore the most affordable flight options available from Duluth to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Duluth to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:14 am -
2 stops9h 22m
Sat 11/141:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:14 am -
2 stops9h 22m
Thu 11/121:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/293:10 pm -
1 stop9h 39m
Sat 10/311:10 am -
2 stops10h 29m
Deal found 9/14![United Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:00 am -
2 stops12h 12m
Fri 11/131:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$569
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/611:16 am -
2 stops13h 32m
Mon 11/96:37 pm -
2 stops14h 04m
Deal found 9/13![United Airlines logo]()
$657
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:10 pm -
1 stop9h 41m
Sun 11/16:57 am -
1 stop14h 17m
Deal found 9/10![United Airlines logo]()
$666
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:10 pm -
1 stop9h 49m
Tue 9/157:00 am -
1 stop8h 48m
Deal found 9/10![United Airlines logo]()
$678
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 9/283:10 pm -
1 stop9h 39m
Fri 10/21:24 pm -
2 stops19h 18m
Deal found 9/13![United Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/1311:16 am -
2 stops10h 59m
Mon 11/166:37 pm -
2 stops14h 04m
Deal found 9/14![United Airlines logo]()
$718
Best flights from Duluth to OntarioDiscover carefully curated flight deals from Duluth to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Duluth to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:14 am -
2 stops9h 22m
Fri 11/131:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/293:10 pm -
1 stop9h 39m
Sat 10/311:10 am -
2 stops10h 29m
Deal found 9/14![United Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:35 pm -
2 stops12h 08m
Thu 11/121:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:00 am -
2 stops12h 12m
Fri 11/131:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$569
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/611:16 am -
2 stops13h 32m
Mon 11/96:37 pm -
2 stops14h 04m
Deal found 9/13![United Airlines logo]()
$657
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
2 stops11h 22m
Sun 11/16:57 am -
1 stop14h 17m
Deal found 9/10![United Airlines logo]()
$672
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/173:10 pm -
1 stop9h 39m
Wed 10/215:00 am -
2 stops16h 22m
Deal found 9/14![United Airlines logo]()
$719
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:16 am -
1 stop9h 31m
Fri 11/137:00 am -
1 stop14h 14m
Deal found 9/12![United Airlines logo]()
$796
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:16 am -
2 stops11h 35m
Fri 11/137:00 am -
1 stop14h 14m
Deal found 9/12![United Airlines logo]()
$802
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 9/283:10 pm -
1 stop9h 39m
Fri 10/27:00 am -
1 stop9h 19m
Deal found 9/13![United Airlines logo]()
$808
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 9/283:10 pm -
1 stop9h 39m
Thu 10/19:25 am -
2 stops11h 57m
Deal found 9/13![United Airlines logo]()
$847
Last-minute flights from Duluth to OntarioDiscover last-minute flight deals from Duluth to Ontario. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Duluth to Ontario. Data last updated September 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 9/283:10 pm -
1 stop9h 39m
Fri 10/21:24 pm -
2 stops19h 18m
Deal found 9/13![United Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/293:10 pm -
1 stop9h 39m
Sat 10/311:10 am -
2 stops10h 29m
Deal found 9/14![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/173:10 pm -
1 stop9h 39m
Wed 10/215:00 am -
2 stops16h 22m
Deal found 9/14![United Airlines logo]()
$719
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:10 pm -
1 stop9h 41m
Sun 11/16:57 am -
1 stop14h 17m
Deal found 9/10![United Airlines logo]()
$666
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:14 am -
2 stops9h 22m
Tue 11/101:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:14 am -
2 stops9h 22m
Thu 11/121:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:00 am -
2 stops12h 12m
Fri 11/131:15 pm -
2 stops7h 36m
Deal found 9/12![Delta logo]()
$569
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:16 am -
2 stops11h 35m
Fri 11/137:00 am -
1 stop14h 14m
Deal found 9/12![United Airlines logo]()
$802
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:16 am -
1 stop9h 31m
Fri 11/137:00 am -
1 stop14h 14m
Deal found 9/12![United Airlines logo]()
$796
One-way flights from Duluth to OntarioSearch for one-way flight options from Duluth to Ontario. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Duluth to Ontario. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:10 pm -
1 stop9h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:45 am -
1 stop17h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$547
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:18 am -
1 stop13h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$612
Find flight deals from Duluth to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to Ontario (ONT). 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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (Delta) |
Popular in | April |
Cheapest in | July |
Average price | $373 |
Cheapflights Fare Finder
Customize your flight search to find flights from Duluth to Ontario 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 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from Duluth to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Tue 10/27
5:14 am-12:36 pm
2 stops9h 22m
Ontario
Fri 11/13
1:15 pm-10:51 pm
2 stops7h 36m
$379
Quickest round-trip
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Wed 9/30
3:10 pm-10:49 pm
1 stop9h 39m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$394
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Sat 10/31
12:35 pm-10:43 pm
2 stops12h 08m
Ontario
Thu 11/12
1:15 pm-10:51 pm
2 stops7h 36m
$409
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Mon 10/12
7:45 am-10:49 pm
1 stop17h 04m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$547
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Tue 9/29
3:10 pm-10:49 pm
1 stop9h 39m
Ontario
Sat 10/3
11:10 am-11:39 pm
2 stops10h 29m
$554
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Fri 10/30
7:00 am-5:12 pm
2 stops12h 12m
Ontario
Fri 11/13
1:15 pm-10:51 pm
2 stops7h 36m
$569
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Sun 10/11
11:18 am-10:49 pm
1 stop13h 31m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$612
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Fri 11/6
11:16 am-10:48 pm
2 stops13h 32m
Ontario
Mon 11/9
6:37 pm-10:41 am
2 stops14h 04m
$657
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Sat 10/24
6:00 am-3:22 pm
2 stops11h 22m
Ontario
Sun 11/1
6:57 am-11:14 pm
1 stop14h 17m
$672
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Sat 10/17
3:10 pm-10:49 pm
1 stop9h 39m
Ontario
Wed 10/21
5:00 am-11:22 pm
2 stops16h 22m
$719
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Duluth to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Duluth to Ontario in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Duluth-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Duluth-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Duluth-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Duluth-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Duluth-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Duluth to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Duluth with our price prediction graph.
DLH-ONT
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.
Related info for your journey
Find useful and relevant information for your journey from Duluth to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Ontario flight routes
Other flight options
Other flights from Duluth
Popular flights