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

American Airlines and United Airlines are the most popular carriers operating from Ontario to Bilbao

What airlines fly to Bilbao?

Iberia, Lufthansa and American Airlines are the top three most popular airlines that fly to Bilbao from Ontario according to our data. Iberia is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 8 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

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.

$379 Cheap Flights from Ontario to Bilbao in 2025/26

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Find the cheapest flights from Ontario to Bilbao

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 am - 4:30 pmONT-BIO

24h 50m2 stops

6:50 am - 5:07 pmBIO-ONT

19h 17m2 stops

$691Delta

Find Deal

Fri, Dec 5 - Tue, Dec 9

7:05 am - 10:25 pmONT-BIO

30h 20m2 stops

5:20 pm - 4:09 pmBIO-ONT

31h 49m2 stops

$743KLM

Find Deal

Fri, Dec 5 - Tue, Dec 9

5:05 am - 11:20 pmONT-BIO

33h 15m2 stops

6:45 am - 10:49 pmBIO-ONT

25h 04m3 stops

$796United Airlines

Find Deal

Fri, Dec 5 - Tue, Dec 9

5:05 am - 11:20 pmONT-BIO

33h 15m2 stops

6:45 am - 10:49 pmBIO-ONT

25h 04m3 stops

$868United Airlines

Find Deal

Fri, Dec 5 - Tue, Dec 9

6:00 am - 6:05 pmONT-BIO

27h 05m2 stops

11:35 am - 10:53 pmBIO-ONT

20h 18m2 stops

$945United Airlines

Find Deal

Sun, Jan 4 - Sun, Jan 18

1:34 pm - 4:40 pmONT-BIO

18h 06m2 stops

6:45 am - 5:43 pmBIO-ONT

19h 58m2 stops

$1,041United Airlines

Find Deal

Tue, Dec 16 - Tue, Dec 23

1:34 pm - 11:20 pmONT-BIO

24h 46m2 stops

6:45 am - 10:49 pmBIO-ONT

25h 04m3 stops

$1,068United Airlines

Find Deal

Fri, Dec 5 - Tue, Dec 9

5:05 am - 11:20 pmONT-BIO

33h 15m2 stops

12:50 pm - 10:53 pmBIO-ONT

43h 03m2 stops

$1,153United Airlines

Find Deal

Fri, Jan 2 - Fri, Jan 9

5:05 am - 11:20 pmONT-BIO

33h 15m2 stops

6:45 am - 12:17 pmBIO-ONT

38h 32m3 stops

$1,211United Airlines

Find Deal

Fri, Jan 2 - Fri, Jan 9

11:59 pm - 12:50 pmONT-BIO

27h 51m2 stops

7:25 am - 5:43 pmBIO-ONT

43h 18m2 stops

$1,347United Airlines

Find Deal

Mon, Jan 5 - Sun, Jan 11

United Airlines flights from Ontario to Bilbao

Our best United Airlines deals on Ontario to Bilbao flight tickets

United Airlines

Dec 5

ONT5:05 amOntario

33h 15m

2 stops

BIO11:20 pmBilbao

Dec 9

BIO7:40 amBilbao

24h 09m

3 stops

ONT10:49 pmOntario

$776

Find similar

United Airlines

Dec 5

ONT5:05 amOntario

33h 15m

2 stops

BIO11:20 pmBilbao

Dec 9

BIO6:45 amBilbao

25h 04m

3 stops

ONT10:49 pmOntario

$796

Find similar

United Airlines

Dec 5

ONT5:05 amOntario

33h 15m

2 stops

BIO11:20 pmBilbao

Dec 9

BIO6:45 amBilbao

25h 04m

3 stops

ONT10:49 pmOntario

$868

Find similar

Delta flights from Ontario to Bilbao

Our best Delta deals on Ontario to Bilbao flight tickets

Delta

Dec 5

ONT6:40 amOntario

24h 50m

2 stops

BIO4:30 pmBilbao

Dec 9

BIO11:55 amBilbao

45h 03m

2 stops

ONT11:58 pmOntario

$682

Find similar

Delta

Dec 5

ONT6:40 amOntario

24h 50m

2 stops

BIO4:30 pmBilbao

Dec 9

BIO6:50 amBilbao

19h 17m

2 stops

ONT5:07 pmOntario

$691

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Fri 12/5

6:40 am-4:30 pm

2 stops24h 50m

Bilbao

Tue 12/9

6:50 am-5:07 pm

2 stops19h 17m

$691

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Fri 12/5

7:05 am-10:25 pm

2 stops30h 20m

Bilbao

Tue 12/9

5:20 pm-4:09 pm

2 stops31h 49m

$743

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Fri 12/5

5:05 am-11:20 pm

2 stops33h 15m

Bilbao

Tue 12/9

6:45 am-10:49 pm

3 stops25h 04m

$796

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Fri 12/5

5:05 am-11:20 pm

2 stops33h 15m

Bilbao

Tue 12/9

6:45 am-10:49 pm

3 stops25h 04m

$868

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Sun 1/4

6:00 am-6:05 pm

2 stops27h 05m

Bilbao

Sun 1/18

11:35 am-10:53 pm

2 stops20h 18m

$945

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Tue 12/16

1:34 pm-4:40 pm

2 stops18h 06m

Bilbao

Tue 12/23

6:45 am-5:43 pm

2 stops19h 58m

$1,041

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Fri 12/5

1:34 pm-11:20 pm

2 stops24h 46m

Bilbao

Tue 12/9

6:45 am-10:49 pm

3 stops25h 04m

$1,068

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Fri 1/2

5:05 am-11:20 pm

2 stops33h 15m

Bilbao

Fri 1/9

12:50 pm-10:53 pm

2 stops43h 03m

$1,153

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Fri 1/2

5:05 am-11:20 pm

2 stops33h 15m

Bilbao

Fri 1/9

6:45 am-12:17 pm

3 stops38h 32m

$1,211

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Mon 1/5

11:59 pm-12:50 pm

2 stops27h 51m

Bilbao

Sun 1/11

7:25 am-5:43 pm

2 stops43h 18m

$1,347

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from Ontario to Bilbao is on a Tuesday. Travelers who choose to depart for Bilbao on a Tuesday will often find tickets for as low as $930. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,363. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is at noon. Flights from Ontario to Bilbao during this time can be as low as $901. In the morning is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,195 per ticket.

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

Direct flights	None

There are no direct flights from Ontario to Bilbao. There are no popular flight routes from Ontario to Bilbao.

Search flight deals

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 16h 14m.
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.

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.