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$435+ Cheap flights from Basel (EAP) 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
EAP — ONT
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Cheap flight deals from Basel to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Basel (EAP) 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 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$687
(American Airlines)

One-way from

$435
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$667
Provider with most accurate pricing for Basel (EAP)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Basel (EAP)-Los Angeles flights.
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From Basel (EAP) to Ontario
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One-way flight from Basel (EAP) to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Basel to Ontario

Cheapest flights from Basel to Ontario
Explore the most affordable flight options available from Basel to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This American Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/96:35 amBSL - ONT
2 stops20h 47mAmerican Airlines
Mon 11/2410:47 amONT - BSL
2 stops18h 48mAmerican Airlines
Deal found 10/22$688
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Mon 11/36:15 amBSL - ONT
2 stops21h 06mAmerican Airlines
Tue 11/1810:47 amONT - BSL
2 stops19h 18mAmerican Airlines
Deal found 10/23$796
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/269:50 amBSL - ONT
2 stops20h 17mUnited Airlines
Fri 1/95:05 amONT - BSL
2 stops26h 00mUnited Airlines
Deal found 10/22$869
This Delta deal was found by Cheapflights users on 10/23. 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 11/76:05 amBSL - ONT
2 stops20h 05mDelta
Sun 11/237:05 amONT - BSL
2 stops17h 45mDelta
Deal found 10/23$1,037
This United Airlines deal was found by Cheapflights users on 10/23. 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 12/71:10 pmBSL - ONT
2 stops18h 39mUnited Airlines
Sun 12/146:41 pmONT - BSL
2 stops15h 59mUnited Airlines
Deal found 10/23$1,133
This lastminute.com deal was found by Cheapflights users on 10/23. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:35 amBSL - ONT
2 stops20h 47mBritish Airways
Sun 11/1612:46 pmONT - BSL
2 stops17h 19mBritish Airways
Deal found 10/23$1,227
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/69:50 amBSL - ONT
2 stops16h 47mUnited Airlines
Sat 12/136:41 pmONT - BSL
2 stops15h 59mUnited Airlines
Deal found 10/22$1,266
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/249:50 amBSL - ONT
2 stops17h 20mUnited Airlines
Fri 1/21:40 pmONT - BSL
2 stops17h 25mUnited Airlines
Deal found 10/21$1,392
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/241:10 pmBSL - ONT
2 stops18h 21mUnited Airlines
Fri 11/281:29 pmONT - BSL
2 stops17h 36mUnited Airlines
Deal found 10/22$2,001
This Bravofly deal was found by Cheapflights users on 10/23. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:10 amBSL - ONT
2 stops20h 11mBritish Airways
Thu 11/204:47 pmONT - BSL
2 stops17h 18mBritish Airways
Deal found 10/23$2,532

Cheapflights Fare Finder

 
Customize your flight search to find flights from Basel 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 October 23, 2025.
Use the filters below to find and compare flights from Basel to Ontario that are best for you.

Fly from

Basel

Fly to

Ontario

Route

Depart

Return

Price

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Fri 2/27

7:00 am-9:57 pm

2 stops23h 57m

Ontario

Tue 3/3

11:05 am-3:05 pm

2 stops19h 00m

$687

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sun 11/9

6:35 am-6:22 pm

2 stops20h 47m

Ontario

Mon 11/24

10:47 am-2:35 pm

2 stops18h 48m

$688

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sat 1/24

7:10 am-6:45 pm

2 stops20h 35m

Ontario

Sat 2/7

4:49 pm-6:05 pm

2 stops16h 16m

$703

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 3/5

11:05 am-9:40 pm

2 stops19h 35m

Ontario

Mon 3/9

5:02 pm-6:15 pm

2 stops17h 13m

$746

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Mon 11/3

6:15 am-6:21 pm

2 stops21h 06m

Ontario

Tue 11/18

10:47 am-3:05 pm

2 stops19h 18m

$796

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Wed 4/1

2:20 pm-11:52 pm

2 stops18h 32m

Ontario

Sun 4/5

5:05 pm-5:50 pm

2 stops15h 45m

$805

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 3/19

9:50 am-10:37 pm

2 stops20h 47m

Ontario

Thu 4/2

5:00 am-12:25 pm

2 stops22h 25m

$808

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 3/26

9:50 am-8:45 pm

2 stops18h 55m

Ontario

Tue 4/7

6:30 pm-7:35 pm

2 stops16h 05m

$812

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Fri 12/26

9:50 am-9:07 pm

2 stops20h 17m

Ontario

Fri 1/9

5:05 am-4:05 pm

2 stops26h 00m

$869

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Wed 12/10

6:20 am-10:28 pm

2 stops25h 08m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 20 results
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Best time to book a flight from Basel to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Basel 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 Basel to Ontario

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

Currently, September is the cheapest month in which you can book a flight from Basel to Ontario (average of $508). Flying from Basel to Ontario in July is currently the most expensive (average of $679). 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.

Related info for your journey

Find useful and relevant information for your journey from Basel to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Basel to Ontario?

    For as low as $703, American Airlines can have you in Ontario from Basel in 20h 35m. The distance from Basel to Ontario is about 5850 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Basel to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Basel 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 Basel to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Basel to Ontario (average of $508). Flying from Basel to Ontario in July is currently the most expensive (average of $679). 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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