$169+ Cheap flights from Ontario to Madison (ONT - MSN)
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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSN
Sep 29 — Oct 61
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Madison 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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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 Ontario to Madison
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Cheapest flights from Ontario to MadisonExplore the most affordable flight options available from Ontario to Madison. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
Explore the most affordable flight options available from Ontario to Madison. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
This Frontier deal was found by Cheapflights users on 8/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:15 am -
1 stop11h 00m
Thu 9/178:00 pm -
1 stop5h 47m
Deal found 8/29![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 8/26. 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 9/36:00 am -
1 stop11h 10m
Thu 9/108:00 pm -
1 stop5h 47m
Deal found 8/26![Frontier logo]()
$335
This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:15 am -
1 stop5h 45m
Sat 9/267:17 am -
1 stop8h 08m
Deal found 8/27![American Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 8/25. 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 9/1212:17 pm -
1 stop8h 24m
Sat 9/266:00 am -
2 stops8h 14m
Deal found 8/25![Delta logo]()
$346
This American Airlines deal was found by Cheapflights users on 8/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:22 pm -
1 stop6h 35m
Sat 9/197:17 am -
1 stop8h 08m
Deal found 8/26![American Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 8/26. 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 11/612:16 pm -
1 stop8h 47m
Sun 11/811:14 am -
1 stop9h 08m
Deal found 8/26![Delta logo]()
$359
This Frontier deal was found by Cheapflights users on 8/25. 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 9/36:00 am -
1 stop11h 10m
Sun 9/67:55 pm -
1 stop5h 55m
Deal found 8/25![Frontier logo]()
$360
This Delta deal was found by Cheapflights users on 8/26. 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 11/612:16 pm -
1 stop8h 47m
Mon 11/92:30 pm -
2 stops11h 19m
Deal found 8/26![Delta logo]()
$364
This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:37 pm -
1 stop8h 20m
Tue 9/1511:37 am -
1 stop9h 16m
Deal found 8/27![American Airlines logo]()
$385
Best flights from Ontario to MadisonDiscover carefully curated flight deals from Ontario to Madison that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
Discover carefully curated flight deals from Ontario to Madison that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
This United Airlines deal was found by Cheapflights users on 8/29. 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 2/65:00 am -
1 stop6h 50m
Tue 2/93:09 pm -
1 stop7h 11m
Deal found 8/29![United Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/207:13 pm -
2 stops12h 27m
Fri 10/22:49 pm -
2 stops10h 02m
Deal found 8/28![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/106:00 am -
2 stops13h 00m
Wed 10/142:40 pm -
1 stop8h 18m
Deal found 8/26![United Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/121:18 pm -
1 stop5h 21m
Wed 9/165:00 am -
2 stops9h 12m
Deal found 8/28![United Airlines logo]()
$490
Last-minute flights from Ontario to MadisonDiscover last-minute flight deals from Ontario to Madison. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Madison. Data last updated August 30, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/26. 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 9/36:00 am -
1 stop11h 10m
Thu 9/108:00 pm -
1 stop5h 47m
Deal found 8/26![Frontier logo]()
$335
This Frontier deal was found by Cheapflights users on 8/25. 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 9/36:00 am -
1 stop11h 10m
Sun 9/67:55 pm -
1 stop5h 55m
Deal found 8/25![Frontier logo]()
$360
This American Airlines deal was found by Cheapflights users on 8/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:22 pm -
1 stop6h 35m
Sat 9/197:17 am -
1 stop8h 08m
Deal found 8/26![American Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:37 pm -
1 stop8h 20m
Tue 9/1511:37 am -
1 stop9h 16m
Deal found 8/27![American Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:15 am -
1 stop5h 45m
Sat 9/267:17 am -
1 stop8h 08m
Deal found 8/27![American Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 8/25. 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 9/1212:17 pm -
1 stop8h 24m
Sat 9/266:00 am -
2 stops8h 14m
Deal found 8/25![Delta logo]()
$346
This Frontier deal was found by Cheapflights users on 8/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:15 am -
1 stop11h 00m
Thu 9/178:00 pm -
1 stop5h 47m
Deal found 8/29![Frontier logo]()
$310
This American Airlines deal was found by Cheapflights users on 8/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:11 pm -
2 stops11h 03m
Tue 9/2211:37 am -
2 stops8h 40m
Deal found 8/28![American Airlines logo]()
$404
One-way flights from Ontario to MadisonSearch for one-way flight options from Ontario to Madison. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
Search for one-way flight options from Ontario to Madison. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This Jetabroad deal was found by Cheapflights users on 8/24. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:56 pm -
1 stop21h 14m
Deal found 8/24![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 10/128:00 am -
2 stops23h 50m
Deal found 8/25![Multiple Airlines logo]()
$214
This KAYAK deal was found by Cheapflights users on 8/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:04 pm -
1 stop6h 31m
Deal found 8/26![American Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/118:03 pm -
2 stops35h 47m
Deal found 8/27![Multiple Airlines logo]()
$298
This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:45 pm -
1 stop7h 04m
Deal found 8/27![American Airlines logo]()
$333
Find flight deals from Ontario to Madison
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Madison (MSN). 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 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $310 (Frontier) |
One-way from | $169 (Jetabroad) |
Popular in | November |
Cheapest in | January |
Average price | $531 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Madison 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 August 30, 2026.
Use the filters below to find and compare flights from Ontario to Madison that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Sat 2/6
5:00 am-1:50 pm
1 stop6h 50m
Madison Truax Field
Tue 2/9
3:09 pm-8:20 pm
1 stop7h 11m
$441
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Sun 9/20
7:13 pm-9:40 am
2 stops12h 27m
Madison Truax Field
Fri 10/2
2:49 pm-10:51 pm
2 stops10h 02m
$469
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Sat 10/10
6:00 am-9:00 pm
2 stops13h 00m
Madison Truax Field
Wed 10/14
2:40 pm-8:58 pm
1 stop8h 18m
$490
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Sat 9/12
1:18 pm-8:39 pm
1 stop5h 21m
Madison Truax Field
Wed 9/16
5:00 am-12:12 pm
2 stops9h 12m
$490
Cheapest one-way
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Sat 9/5
7:56 pm-7:10 pm
1 stop21h 14m
$169
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Thu 9/17
1:04 pm-9:35 pm
1 stop6h 31m
$297
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Wed 11/25
12:45 pm-9:49 pm
1 stop7h 04m
$333
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Mon 10/12
11:15 pm-10:19 am
1 stop9h 04m
$353
Quickest one-way
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Sun 10/18
5:00 am-1:18 pm
1 stop6h 18m
$379
OntarioMadison
ONT Ontario - MSN Madison Truax Field
ONTMSN
Ontario
Thu 10/22
5:00 am-1:18 pm
1 stop6h 18m
$379
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Ontario to Madison
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 Ontario to Madison in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Ontario-Madison flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Madison flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Madison flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Madison 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 Ontario-Madison 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 Ontario to Madison
Have a flexible travel schedule? Discover the best time to fly to Madison from Ontario with our price prediction graph.
ONT-MSN
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.
Reviews of airlines servicing Madison
Get insights into the airlines that provide service to Madison. 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 Madison. Reviews last updated August 30, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Ontario to Madison by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Madison. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Madison?
Book flights to Madison if you plan to visit one of these locationsSun Prairie
Middleton
Fitchburg
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Other flights to Madison
Explore flights to Madison departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 30, 2026.
Ontario and Madison flights
Browse other Ontario and Madison flight options. Last updated on August 30, 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 August 30, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Ontario to Madison
Discover the top 2 airlines that operate flights from Ontario to Madison. 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 7,457,451 searches. Data last updated August 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$467 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$353 | Average$590 | FlexibilityNo cancel fee | On-time71% |