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$702+ Cheap flights from Basel (EAP) to Ontario (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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
EAP — ONT
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Cheap 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 December 9, 2025.

This Delta deal was found by Cheapflights users on 12/7. 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 12/246:05 amBSL - ONT
2 stops25h 28mDelta
Wed 12/316:00 amONT - BSL
2 stops22h 50mDelta
Deal found 12/7$966
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/151:10 pmBSL - ONT
2 stops18h 39mUnited Airlines
Sat 1/176:32 pmONT - BSL
2 stops16h 08mUnited Airlines
Deal found 12/8$1,082
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/246:20 amBSL - ONT
2 stops36h 18mAmerican Airlines
Tue 12/302:49 pmONT - BSL
2 stops22h 31mAmerican Airlines
Deal found 12/7$1,252
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/229:50 amBSL - ONT
2 stops21h 02mUnited Airlines
Sun 12/2810:42 amONT - BSL
2 stops16h 48mUnited Airlines
Deal found 12/7$1,318
This United Airlines deal was found by Cheapflights users on 12/7. 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
Thu 1/15:05 amONT - BSL
2 stops22h 25mUnited Airlines
Deal found 12/7$1,723
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/239:50 amBSL - ONT
2 stops21h 35mUnited Airlines
Sat 1/36:00 amONT - BSL
2 stops21h 30mUnited Airlines
Deal found 12/8$1,972
This American Airlines deal was found by Cheapflights users on 12/8. 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 12/246:20 amBSL - ONT
2 stops20h 56mMultiple Airlines
Sun 12/284:47 pmONT - BSL
2 stops20h 33mMultiple Airlines
Deal found 12/8$2,017
This Iberia deal was found by Cheapflights users on 12/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:55 amBSL - ONT
2 stops20h 33mMultiple Airlines
Sat 1/1710:58 amONT - BSL
2 stops19h 37mMultiple Airlines
Deal found 12/8$2,194
This Bravofly deal was found by Cheapflights users on 12/9. 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.
Sun 12/2111:20 amBSL - ONT
2 stops19h 54mBritish Airways
Sat 12/2711:59 pmONT - BSL
2 stops30h 06mBritish Airways
Deal found 12/9$2,840
This lastminute.com deal was found by Cheapflights users on 12/9. 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.
Mon 12/2210:55 amBSL - ONT
2 stops20h 19mBritish Airways
Sat 1/311:59 pmONT - BSL
2 stops30h 06mBritish Airways
Deal found 12/9$3,465
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/139:50 amBSL - ONT
2 stops16h 47mUnited Airlines
Sat 12/206:04 amONT - BSL
2 stops21h 26mUnited Airlines
Deal found 12/8$13,250

Find 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 December 9, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$702
(American Airlines)

Popular in

December

Cheapest in

March

Average price

$950
Provider with most accurate pricing for Basel (EAP)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Basel (EAP)-Los Angeles flights.
Search Deals
From Basel (EAP) to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 9, 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

Thu 2/19

6:05 am-10:29 pm

2 stops25h 24m

Ontario

Mon 2/23

6:10 am-6:15 pm

2 stops27h 05m

$702

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Mon 1/12

6:15 am-6:45 pm

2 stops21h 30m

Ontario

Sun 1/25

10:58 am-3:05 pm

2 stops19h 07m

$729

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sun 2/1

11:20 am-10:13 pm

2 stops19h 53m

Ontario

Mon 2/16

5:06 pm-6:15 pm

2 stops16h 09m

$745

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 1/15

6:05 am-5:22 pm

2 stops20h 17m

Ontario

Wed 1/28

10:58 am-2:55 pm

2 stops18h 57m

$755

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sun 5/24

11:05 am-9:43 pm

2 stops19h 38m

Ontario

Tue 6/2

8:43 am-10:55 am

2 stops17h 12m

$930

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Wed 12/24

6:05 am-10:33 pm

2 stops25h 28m

Ontario

Wed 12/31

6:00 am-1:50 pm

2 stops22h 50m

$966

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 12/25

6:05 am-10:33 pm

2 stops25h 28m

Ontario

Wed 12/31

6:00 am-1:50 pm

2 stops22h 50m

$966

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 3/5

11:05 am-10:04 pm

2 stops19h 59m

Ontario

Mon 3/9

5:02 pm-6:15 pm

2 stops17h 13m

$1,004

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sat 3/14

11:10 am-10:07 pm

2 stops18h 57m

$861

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sat 1/10

3:00 pm-8:10 pm

2 stops38h 10m

$966

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 18 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 $686). 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 $745, American Airlines can have you in Ontario from Basel in 19h 53m. 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 $686). 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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