Ontario

$79+ Cheap flights from Saint Paul, MN to Ontario (ONT)

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
MSP — ONT
Oct 14 — Oct 211
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Cheapflights Tip: The best prices from Saint Paul to Ontario are usually found in November or September, booked 7 days in advance, depart on a Tuesday or Thursday and return on a Saturday

Cheap flight deals from Saint Paul to Ontario

Keep the following information in mind while searching for Saint Paul to Ontario flight deals. Data was last updated September 14, 2025.

Round-trip from

$143
(Gotogate)

One-way from

$79
(Trip.com)

Popular in

October

Cheapest in

November

Average price

$301
From Saint Paul to Ontario
One-way flight from Saint Paul to Ontario
High demand for flights, 5% potential price rise
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find flight deals from Saint Paul to Ontario

Cheapest flights from Saint Paul to Ontario
Explore the most affordable flight options available from Saint Paul to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:50 amMSP - ONT
1 stop18h 00mFrontier
Fri 10/316:53 amONT - MSP
1 stop24h 27mFrontier
Deal found 9/12$143
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:50 amMSP - ONT
1 stop18h 00mFrontier
Sat 10/117:04 amONT - MSP
1 stop14h 49mFrontier
Deal found 9/11$144
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:00 amMSP - ONT
1 stop5h 35mFrontier
Wed 10/296:53 amONT - MSP
1 stop15h 02mFrontier
Deal found 9/13$146
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:49 pmMSP - ONT
1 stop12h 00mFrontier
Mon 10/136:53 amONT - MSP
1 stop15h 00mFrontier
Deal found 9/12$148
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/129:49 pmMSP - ONT
1 stop12h 00mFrontier
Wed 10/156:53 amONT - MSP
1 stop24h 12mFrontier
Deal found 9/11$149
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:49 pmMSP - ONT
1 stop12h 00mFrontier
Mon 10/276:53 amONT - MSP
1 stop15h 00mFrontier
Deal found 9/13$151
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:00 amMSP - ONT
1 stop25h 23mFrontier
Wed 10/18:59 pmONT - MSP
1 stop24h 57mFrontier
Deal found 9/11$153
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/206:00 amMSP - ONT
1 stop5h 35mFrontier
Sat 10/258:34 amONT - MSP
1 stop6h 52mFrontier
Deal found 9/12$158
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:00 amMSP - ONT
1 stop13h 54mFrontier
Sun 9/288:59 pmONT - MSP
1 stop25h 17mFrontier
Deal found 9/12$160
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:00 amMSP - ONT
1 stop13h 54mFrontier
Fri 9/268:59 pmONT - MSP
1 stop21h 47mFrontier
Deal found 9/12$162
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:31 pmMSP - ONT
1 stop15h 57mFrontier
Sun 10/58:59 pmONT - MSP
1 stop24h 57mFrontier
Deal found 9/12$168
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:45 amMSP - ONT
1 stop27h 08mFrontier
Tue 9/308:59 pmONT - MSP
1 stop21h 47mFrontier
Deal found 9/12$170

Cheapflights Fare Finder

 
Customize your flight search to find flights from Saint Paul 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 2,558,603 searches. Data last updated September 14, 2025.
Use the filters below to find and compare flights from Saint Paul to Ontario that are best for you.

Fly from

Saint Paul

Fly to

Ontario

Route

Depart

Return

Price

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 10/25

7:50 am-11:50 pm

1 stop18h 00m

Ontario

Wed 10/29

6:53 am-11:55 pm

1 stop15h 02m

$143

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Tue 2/24

2:20 pm-10:38 pm

1 stop10h 18m

Ontario

Thu 2/26

6:45 am-5:30 pm

1 stop8h 45m

$257

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Mon 11/17

6:10 pm-11:52 pm

1 stop7h 42m

Ontario

Thu 12/11

5:49 pm-5:17 am

1 stop9h 28m

$257

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 10/25

7:00 am-12:37 pm

1 stop7h 37m

Ontario

Wed 10/29

11:59 am-12:04 am

1 stop10h 05m

$290

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Wed 10/22

7:00 am-12:37 pm

1 stop7h 37m

Ontario

Tue 10/28

11:59 am-12:04 am

1 stop10h 05m

$290

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 10/25

1:04 pm-6:06 pm

1 stop7h 02m

Ontario

Wed 10/29

6:00 am-2:09 pm

1 stop6h 09m

$319

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Wed 10/22

7:00 am-12:37 pm

1 stop7h 37m

Ontario

Fri 10/31

11:59 am-12:04 am

1 stop10h 05m

$324

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Mon 2/9

2:05 pm-9:58 pm

1 stop9h 53m

Ontario

Wed 2/18

6:00 am-4:17 pm

1 stop8h 17m

$328

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Tue 10/21

7:00 am-12:37 pm

1 stop7h 37m

Ontario

Mon 10/27

11:59 am-12:04 am

1 stop10h 05m

$337

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Sat 11/8

2:48 pm-8:53 pm

1 stop8h 05m

Ontario

Fri 11/14

11:59 am-12:04 am

1 stop10h 05m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Saint Paul to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Saint Paul with our price prediction graph.
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 Saint Paul to Ontario

How far ahead should I book a flight from Saint Paul to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Saint Paul to Ontario. Price data was last updated on September 12, 2025.

Booking 7 days in advance of your planned departure date is, on average, the best time to get cheap flights from Saint Paul to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Saint Paul to Ontario?

Currently, August is the cheapest month in which you can book a flight from Saint Paul to Ontario (average of $246). Flying from Saint Paul to Ontario in March is currently the most expensive (average of $328). 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.

What is the cheapest time of day to fly from SA1 to ONT?

Find hourly flight availability from Saint Paul to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Saint Paul to Ontario as you normally would.

What is the cheapest day to fly from Saint Paul to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Saint Paul to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Saint Paul to Ontario flight should consider departing on Monday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 14, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Saint Paul to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
8.0
Very good

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Saint Paul to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Ontario from Saint Paul?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Saint Paul. On average, Ontario has 0 inbound flights from Saint Paul per day from 6 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Saint Paul to Ontario?

    For as low as $290, Frontier can have you in Ontario from Saint Paul in 7h 37m. The distance between Saint Paul and Ontario is about 1491 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Saint Paul to Ontario one-way?

    One-way options have recently been found by users for as low as $119 on Alaska Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $119 and Delta from $129 one-way.

  • Can I find deals for flights from Saint Paul to Ontario that include hotel bookings?

    Yes. In addition to deals on Saint Paul to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Saint Paul to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Paul to Ontario.

  • Can I find deals for business class flights from Saint Paul to Ontario?

    Yes. Cheapflights offers flight deals from Saint Paul to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Saint Paul to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Saint Paul to Ontario (average of $246). Flying from Saint Paul to Ontario in March is currently the most expensive (average of $328). 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.

See more FAQs

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Alternative routes for Saint Paul to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Saint Paul to Ontario

Discover the top 6 airlines that operate flights from Saint Paul to Ontario. 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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$65Average$184FlexibilityNo cancel feeOn-time83%
FrontierCheapest$108Average$219FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$259Average$388FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$300Average$416FlexibilityNo cancel feeOn-time63%
DeltaCheapest$317Average$411FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$347Average$473FlexibilityNo cancel feeOn-time69%

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