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Ontario

$466+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
EAP — ONT
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
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 January 21, 2026.

This American Airlines deal was found by Cheapflights users on 1/19. 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 9/211:50 am
BSL
-
ONT
2 stops21h 18m
American Airlines
Sun 9/612:47 pm
ONT
-
BSL
2 stops21h 03m
American Airlines
Deal found 1/19$512
This lastminute.com deal was found by Cheapflights users on 1/21. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:10 am
BSL
-
ONT
2 stops26h 49m
British Airways
Sat 4/1111:59 pm
ONT
-
BSL
2 stops26h 21m
British Airways
Deal found 1/21$655
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Sat 5/238:15 am
BSL
-
ONT
2 stops18h 32m
United Airlines
Sat 7/257:00 am
ONT
-
BSL
2 stops18h 25m
United Airlines
Deal found 1/21$660
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/201:10 pm
BSL
-
ONT
2 stops18h 47m
United Airlines
Fri 4/37:00 am
ONT
-
BSL
2 stops22h 15m
United Airlines
Deal found 1/20$701
This United Airlines deal was found by Cheapflights users on 1/20. 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 10/191:00 pm
BSL
-
ONT
2 stops18h 26m
United Airlines
Sun 10/257:00 am
ONT
-
BSL
2 stops21h 30m
United Airlines
Deal found 1/20$827
This United Airlines deal was found by Cheapflights users on 1/21. 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 6/102:50 pm
BSL
-
ONT
2 stops17h 16m
United Airlines
Fri 8/217:00 am
ONT
-
BSL
2 stops18h 20m
United Airlines
Deal found 1/21$834
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/59:50 am
BSL
-
ONT
2 stops16h 51m
United Airlines
Mon 3/91:50 pm
ONT
-
BSL
2 stops18h 15m
United Airlines
Deal found 1/20$863
This Bravofly deal was found by Cheapflights users on 1/21. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:05 am
BSL
-
ONT
2 stops20h 02m
British Airways
Mon 3/165:02 pm
ONT
-
BSL
2 stops17h 13m
British Airways
Deal found 1/21$938
This Iberia deal was found by Cheapflights users on 1/20. 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.
Sun 2/111:20 am
BSL
-
ONT
2 stops20h 28m
Multiple Airlines
Tue 2/1710:56 am
ONT
-
BSL
2 stops19h 09m
Multiple Airlines
Deal found 1/20$942

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$596
(Bravofly)

One-way from

$466
(Iberia)

Popular in

July

Cheapest in

March

Average price

$725
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.
Search Deals
From Basel (EAP) to Ontario
Search Deals
One-way flight from Basel (EAP) to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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 January 21, 2026.
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 2/6

11:15 am-10:13 pm

2 stops19h 58m

Ontario

Wed 2/18

5:02 pm-6:40 pm

2 stops16h 38m

$596

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 4/2

6:10 am-11:59 pm

2 stops26h 49m

Ontario

Sat 4/11

11:59 pm-11:20 am

2 stops26h 21m

$655

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sat 5/23

8:15 am-5:47 pm

2 stops18h 32m

Ontario

Sat 7/25

7:00 am-10:25 am

2 stops18h 25m

$660

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Sat 2/28

9:50 am-5:41 pm

2 stops16h 51m

Ontario

Sat 3/7

6:37 pm-7:40 pm

2 stops16h 03m

$690

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Fri 2/20

9:50 am-9:59 pm

2 stops21h 09m

Ontario

Sat 4/4

10:49 am-12:25 pm

2 stops16h 36m

$690

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Fri 2/20

1:10 pm-10:57 pm

2 stops18h 47m

Ontario

Fri 4/3

7:00 am-10:20 am

2 stops18h 20m

$697

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Fri 2/20

9:50 am-9:59 pm

2 stops21h 09m

Ontario

Thu 4/2

7:00 am-10:35 am

2 stops18h 35m

$701

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Wed 6/10

2:50 pm-11:06 pm

2 stops17h 16m

Ontario

Fri 8/21

7:00 am-10:20 am

2 stops18h 20m

$834

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 3/5

11:05 am-10:07 pm

2 stops20h 02m

Ontario

Mon 3/16

5:02 pm-6:15 pm

2 stops17h 13m

$835

BaselOntario

BSL - ONT

BSLONT

Basel EuroAirport Swiss

Thu 3/5

9:50 am-5:41 pm

2 stops16h 51m

Ontario

Mon 3/9

1:50 pm-4:05 pm

2 stops18h 15m

$863

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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, October is the cheapest month in which you can book a flight from Basel to Ontario (average of $510). Flying from Basel to Ontario in July is currently the most expensive (average of $691). 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 $660, British Airways can have you in Ontario from Basel in 18h 32m. 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, October is the cheapest month in which you can book a flight from Basel to Ontario (average of $510). Flying from Basel to Ontario in July is currently the most expensive (average of $691). 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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