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Cheap flights from Ontario to Bilbao from $440

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Bilbao departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Ontario to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 11:05 pm
ONT
-
BIO
31h 05m
2 stops
United Airlines Logo
6:45 am - 8:20 pm
BIO
-
ONT
22h 35m
2 stops
$781United Airlines
Mon, Nov 16 - Thu, Nov 19
United Airlines Logo
7:00 am - 10:25 am
ONT
-
BIO
18h 25m
2 stops
United Airlines Logo
6:50 am - 8:16 pm
BIO
-
ONT
22h 26m
2 stops
$793United Airlines
Mon, Sep 28 - Thu, Oct 8
United Airlines Logo
4:03 pm - 10:25 pm
ONT
-
BIO
21h 22m
2 stops
United Airlines Logo
6:50 am - 8:16 pm
BIO
-
ONT
22h 26m
3 stops
$843United Airlines
Mon, Oct 5 - Sat, Oct 17
United Airlines Logo
6:53 pm - 10:50 pm
ONT
-
BIO
42h 57m
3 stops
United Airlines Logo
12:25 pm - 11:06 pm
BIO
-
ONT
19h 41m
2 stops
$875United Airlines
Mon, Nov 16 - Thu, Nov 19
United Airlines Logo
4:03 pm - 10:25 pm
ONT
-
BIO
21h 22m
2 stops
United Airlines Logo
6:50 am - 8:16 pm
BIO
-
ONT
22h 26m
2 stops
$941United Airlines
Mon, Oct 5 - Sat, Oct 17
United Airlines Logo
1:56 pm - 11:25 pm
ONT
-
BIO
24h 29m
2 stops
United Airlines Logo
6:50 am - 7:57 pm
BIO
-
ONT
46h 07m
2 stops
$959United Airlines
Thu, Sep 3 - Mon, Sep 14
United Airlines Logo
7:00 am - 4:00 pm
ONT
-
BIO
24h 00m
2 stops
United Airlines Logo
7:15 am - 8:53 pm
BIO
-
ONT
22h 38m
2 stops
$961United Airlines
Wed, Aug 26 - Mon, Sep 7
United Airlines Logo
1:56 pm - 11:25 pm
ONT
-
BIO
24h 29m
2 stops
United Airlines Logo
6:50 am - 8:53 pm
BIO
-
ONT
23h 03m
2 stops
$989United Airlines
Thu, Sep 3 - Sun, Sep 13
United Airlines Logo
5:00 am - 5:55 pm
ONT
-
BIO
27h 55m
2 stops
United Airlines Logo
6:50 am - 8:01 pm
BIO
-
ONT
22h 11m
2 stops
$1,029United Airlines
Thu, Aug 27 - Sun, Sep 6
United Airlines Logo
5:00 am - 10:45 am
ONT
-
BIO
20h 45m
2 stops
United Airlines Logo
12:30 pm - 10:35 pm
BIO
-
ONT
19h 05m
2 stops
$1,030United Airlines
Thu, Aug 20 - Wed, Aug 26

Turkish Airlines flights from Ontario to Bilbao

Our best Turkish Airlines deals on Ontario to Bilbao flight tickets
Turkish Airlines
Sep 2
ONT11:50 pmOntario
26h 20m
2 stops
BIO11:10 amBilbao
Sep 11
BIO12:10 pmBilbao
41h 03m
2 stops
ONT8:13 pmOntario
$1,327
Turkish Airlines
Jun 27
ONT11:16 pmOntario
50h 54m
2 stops
BIO11:10 amBilbao
Jul 11
BIO12:10 pmBilbao
43h 34m
2 stops
ONT10:44 pmOntario
$2,008
Turkish Airlines
Jun 26
ONT11:54 pmOntario
50h 16m
2 stops
BIO11:10 amBilbao
Jul 24
BIO12:10 pmBilbao
42h 49m
2 stops
ONT9:59 pmOntario
$2,412

British Airways flights from Ontario to Bilbao

Our best British Airways deals on Ontario to Bilbao flight tickets
British Airways
Aug 18
ONT10:29 amOntario
17h 16m
2 stops
BIO12:45 pmBilbao
Aug 26
BIO1:30 pmBilbao
18h 29m
2 stops
ONT10:59 pmOntario
$1,886
British Airways
Jun 30
ONT10:22 amOntario
17h 23m
2 stops
BIO12:45 pmBilbao
Aug 25
BIO9:15 amBilbao
22h 44m
2 stops
ONT10:59 pmOntario
$3,990
British Airways
Jul 19
ONT10:25 amOntario
17h 20m
2 stops
BIO12:45 pmBilbao
Aug 5
BIO1:30 pmBilbao
18h 29m
2 stops
ONT10:59 pmOntario
$4,618

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Bilbao 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, momondo users made 832,500 searches. Data last updated June 5, 2026.
Use the filters below to find and compare flights from Ontario to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Mon 11/16

7:00 am-11:05 pm

2 stops31h 05m

Bilbao

Thu 11/19

6:45 am-8:20 pm

2 stops22h 35m

$781

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Mon 9/28

7:00 am-10:25 am

2 stops18h 25m

Bilbao

Thu 10/8

6:50 am-8:16 pm

2 stops22h 26m

$793

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Mon 10/5

4:03 pm-10:25 pm

2 stops21h 22m

Bilbao

Sat 10/17

6:50 am-8:16 pm

3 stops22h 26m

$843

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Mon 11/16

6:53 pm-10:50 pm

3 stops42h 57m

Bilbao

Thu 11/19

12:25 pm-11:06 pm

2 stops19h 41m

$875

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Mon 10/5

4:03 pm-10:25 pm

2 stops21h 22m

Bilbao

Sat 10/17

6:50 am-8:16 pm

2 stops22h 26m

$941

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Thu 9/3

1:56 pm-11:25 pm

2 stops24h 29m

Bilbao

Mon 9/14

6:50 am-7:57 pm

2 stops46h 07m

$959

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Wed 8/26

7:00 am-4:00 pm

2 stops24h 00m

Bilbao

Mon 9/7

7:15 am-8:53 pm

2 stops22h 38m

$961

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Thu 9/3

1:56 pm-11:25 pm

2 stops24h 29m

Bilbao

Sun 9/13

6:50 am-8:53 pm

2 stops23h 03m

$989

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Thu 8/27

5:00 am-5:55 pm

2 stops27h 55m

Bilbao

Sun 9/6

6:50 am-8:01 pm

2 stops22h 11m

$1,029
Quickest round-trip

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Thu 8/20

5:00 am-10:45 am

2 stops20h 45m

Bilbao

Wed 8/26

12:30 pm-10:35 pm

2 stops19h 05m

$1,030

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Bilbao from

How to get the cheapest flight ticket from Ontario to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Bilbao?

United Airlines, Iberia, and Lufthansa are the most popular carriers operating from Ontario to Bilbao

What airlines fly to Bilbao?

Lufthansa, Iberia and United Airlines are the top three most popular airlines that fly to Bilbao from Ontario according to our data. Lufthansa is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 6 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Bilbao according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Bilbao (ONT to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Bilbao

Fastest flight time

18h 25m

Direct flights

None
The fastest flight from Ontario to Bilbao takes 18h 25m
There are no direct flights from Ontario to Bilbao. There are no popular flight routes from Ontario to Bilbao.
Search flight deals

Frequently asked questions about flying from Ontario to Bilbao

  • How far is Ontario to Bilbao by plane?

    A flight from Ontario to Bilbao will travel around 5691.9 mi. By plane, this route typically takes 18h 25m.

  • When did momondo last update prices for flights from Ontario Airport to Bilbao Airport?

    Prices for flights from Ontario Airport to Bilbao Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Ontario Airport to Bilbao Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Bilbao Airport.

  • What documentation or ID do you need to fly to Bilbao Airport?

    The required travel and health documents for your Bilbao Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bilbao Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Getxo
Laredo
Lekeitio

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Bilbao?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Bilbao. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Bilbao with flexible booking policies on momondo?

momondo does allow users to show only those flights to Bilbao from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Bilbao?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bilbao from Ontario.

I’m not ready to book a flight from Ontario to Bilbao right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bilbao from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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