$279+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — ONT
Nov 1 — Nov 81
Round-trip
1 adult, Economy
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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
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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 October 2, 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 October 2, 2026.
This Delta deal was found by Cheapflights users on 9/30. 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 10/107:00 am -
2 stops12h 12m
Mon 10/121:35 pm -
2 stops7h 22m
Deal found 9/30![Delta logo]()
$574
This United Airlines deal was found by Cheapflights users on 9/30. 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 12/911:00 am -
2 stops11h 38m
Sun 12/135:00 am -
2 stops11h 10m
Deal found 9/30![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/33:10 pm -
1 stop9h 39m
Mon 10/56:32 pm -
2 stops14h 10m
Deal found 9/29![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/93:10 pm -
1 stop9h 39m
Sun 10/116:07 am -
2 stops10h 12m
Deal found 9/30![United Airlines logo]()
$758
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/1011:18 am -
2 stops13h 33m
Mon 10/127:00 am -
1 stop9h 19m
Deal found 9/30![United Airlines logo]()
$787
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/203:06 pm -
1 stop29h 41m
Sat 11/287:00 am -
1 stop8h 40m
Deal found 10/1![United Airlines logo]()
$996
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 October 2, 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 October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/30. 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 12/911:00 am -
2 stops11h 38m
Sun 12/135:00 am -
2 stops11h 10m
Deal found 9/30![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/30. 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 -
1 stop9h 31m
Mon 11/166:37 pm -
2 stops14h 04m
Deal found 9/30![United Airlines logo]()
$758
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/203:06 pm -
1 stop29h 41m
Sat 11/287:00 am -
1 stop8h 40m
Deal found 10/1![United Airlines logo]()
$996
Last-minute flights from Duluth to OntarioDiscover last-minute flight deals from Duluth to Ontario. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute flight deals from Duluth to Ontario. Data last updated October 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/33:10 pm -
1 stop9h 39m
Mon 10/56:32 pm -
2 stops14h 10m
Deal found 9/29![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/93:10 pm -
1 stop9h 39m
Sun 10/116:07 am -
2 stops10h 12m
Deal found 9/30![United Airlines logo]()
$758
This Delta deal was found by Cheapflights users on 9/30. 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 10/107:00 am -
2 stops12h 12m
Mon 10/121:35 pm -
2 stops7h 22m
Deal found 9/30![Delta logo]()
$574
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/1011:18 am -
2 stops13h 33m
Mon 10/127:00 am -
1 stop9h 19m
Deal found 9/30![United Airlines logo]()
$787
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/203:06 pm -
1 stop29h 41m
Sat 11/287:00 am -
1 stop8h 40m
Deal found 10/1![United Airlines logo]()
$996
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 October 2, 2026.
Search for one-way flight options from Duluth to Ontario. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
This Delta deal was found by Cheapflights users on 10/2. 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 1/64:15 pm -
2 stops8h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 10/1. 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 1/54:15 pm -
2 stops8h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Delta logo]()
$310
This Delta deal was found by Cheapflights users on 10/1. 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 1/84:15 pm -
2 stops8h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 10/1. 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.
Sun 1/104:15 pm -
2 stops8h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/2. 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 1/611:30 am -
1 stop9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![United Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Thu 1/711:30 am -
1 stop9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![United Airlines logo]()
$437
This United Airlines deal was found by Cheapflights users on 10/1. 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 1/52:59 pm -
1 stop29h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![United Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 10/1. 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 10/143:10 pm -
1 stop9h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![United Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 10/1. 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 1/107:20 am -
1 stop13h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![United Airlines logo]()
$572
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 October 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $628 (United Airlines) |
One-way from | $279 (Delta) |
Popular in | April |
Cheapest in | July |
Average price | $472 |
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 October 2, 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
Quickest round-trip
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Fri 1/8
4:15 pm-10:48 pm
2 stops8h 33m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$313
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Fri 1/8
11:30 am-6:50 pm
1 stop9h 20m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$373
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Wed 1/6
11:30 am-9:00 pm
2 stops11h 30m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$379
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Tue 1/5
2:59 pm-6:50 pm
1 stop29h 51m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$493
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Wed 10/14
3:10 pm-10:49 pm
1 stop9h 39m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$533
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Sun 1/10
7:20 am-6:50 pm
1 stop13h 30m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$572
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Wed 12/9
11:00 am-8:38 pm
2 stops11h 38m
Ontario
Sun 12/13
5:00 am-6:10 pm
2 stops11h 10m
$628
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Fri 11/13
11:16 am-6:47 pm
1 stop9h 31m
Ontario
Mon 11/16
6:37 pm-10:41 am
2 stops14h 04m
$758
DuluthOntario
DLH Duluth Intl - ONT Ontario
DLHONT
Duluth Intl
Fri 11/20
3:06 pm-6:47 pm
1 stop29h 41m
Ontario
Sat 11/28
7:00 am-5:40 pm
1 stop8h 40m
$996
Sorted 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 October.
| 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.
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