Find Cheap Flights from Chicago to Bilbao (CHI - BIO)

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When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $888 or less.

FAQs for Booking Chicago to Bilbao Flights

How long does a flight from Chicago to Bilbao take?
An average nonstop flight takes 11h 10m, covering a distance of 4110 miles.
Which airlines provide the cheapest flights from Chicago to Bilbao?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($665), Turkish Airlines ($667) and TAP AIR PORTUGAL ($905).
Do I need a passport to fly between Chicago and Bilbao?
Yes.
What’s the cheapest day of the week to fly Chicago to Bilbao?
For Chicago to Bilbao, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Bilbao back to Chicago, the best deals are generally found on Saturday, with Sunday being the most expensive.

Book cheap flights from Chicago to Bilbao (round-trip)

Airports
Origin
Chicago
$665
only
$665
$1164
only
$1164
Destination
Bilbao
$665
only
$665
Mon, Mar 5
ORD
BIO
11h 55m
Tue, Mar 13
BIO
ORD
32h 15m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Nov 29
ORD
BIO
35h 15m
Sun, Dec 3
BIO
ORD
32h 25m
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16502 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
AUH
IST
Good 6.0

Efficient and clean with decent size seats but not to the standards of the MIddle eastern airlines. Good if compared to a intra-europe flight.

Seats we’re tight and not what’s expected these days for a night flight over three hours Internationally.

IST
ORD
Excellent 8.0

The food and entertainment was good. The crew was very nice.

seats too small. I am 6 feet tall. The guy in front leaned back and my knees were jammed for 12 hours. I think this is a violation of gineva convention.

IST
LGW
Good 7.6

Again a good solid basic service with good food well prepared and agreeably served by a pleasant staff. Thank you

Planes are a little small for a fairly long haul business service. Nice but small - so basic amenities.

IST
BUD
Good 7.0

Boarding time was supposed to be 19:10, we did not start to board until passed 20:00. Needless to say we were delayed. There was a woman at the counter,but there was no explanation given about the delay. Luckily it was the last leg of my journey and did not miss a connection flight,but being on an 11 hours flight just before, I was a little cranky. Overall I had a great experience.

BOS
IST
Excellent 10.0

Turkish Airlins is so wonderful, and I really appreciate being treated like a human being at IST (unlike Schipol, De Gaulle, other airports to connect at around Europe).

Tue, Dec 5
ORD
BIO
22h 50m
Fri, Dec 8
BIO
ORD
23h 30m
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 2816 reviews
Overall
7.6
Boarding
7.5
Comfort
7.4
Crew
8.1
Entertainment
6.9
Food
7.2
LIS
GIG
Okay 5.3

I got to Rio de Janeiro on time

cramped seats, minimal water offered by crew on 9.5 hour flight. I also found the extra charge to reserve a seat on this flight a serious affront to economic sensibility

AMS
LIS
Okay 5.2

I got to Lisbon on time.

just another bus ride

LIS
MAD
Mediocre 2.0

Of no change is BULLSHIT

LIS
JFK
Excellent 9.0

business class was great seat comfortable the lounge was very nice

Food on plane ok wish had more choices

MIA
LIS
Mediocre 2.0

Ability to see a bit of Lisbon on the way

Baggage charges that were not shown anywhere on the website. A nasty surprise when we checked luggage. Lost wallet on plane and customer service was unhelpful.

Thu, Dec 14
ORD
BIO
19h 05m
Sun, Dec 17
BIO
ORD
22h 35m
$1161
Trip: 4 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
DEN
Excellent 8.0

I liked the fact that the customer service on board was pretty spectacular & very clean bathrooms.

It was extremely warm throughout the flight and the seats weren’t too comfortable.

LHR
DEN
Excellent 10.0

Everything

LHR
BUD
Mediocre 2.6

Only card why?? No free food??

CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

LHR
DEN
Excellent 10.0

plane was not full so plenty of room to move around etc

Tue, Dec 26
MDW
BIO
22h 29m
Fri, Jan 5
BIO
MDW
16h 25m
$1164
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 6
MDW
BIO
18h 15m
Tue, Dec 19
BIO
MDW
18h 32m
$1179
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1468 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.5
DMM
AMS
Okay 4.3

staff was fine

old old plane, very uncomfortable. Tiny bad screen made movies pointless

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

MUC
AMS
Good 7.6

Great food

Sears we're toooo small

LHR
AMS
Good 7.6

I was pleasantly surprised they had a snack service on such a short flight. The flight attendants were very friendly

Amsterdam customs is the most disorganized I have ever seen. With the number of tourists entering the country you would think they would have done something about it. There were only 2 customs agents!! One for all passports and 1 for all passports. We were in the customs hall longer than we were in flight!

ATL
CLE
Okay 4.0

OLD plane without comfort or entertainment

Fri, Dec 15
ORD
BIO
17h 00m
Mon, Dec 18
BIO
ORD
15h 51m
$1233
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13528 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
JFK
JAX
Good 7.6

Delta never used to be my first choice in airlines, but of my recent experience with them has been excellent. The people from the counter to the plane have been professional and courteous. This is why I will fly with them more frequently.

SAN
SEA
Okay 4.6

Trying too hard to fit as many as possible

CHA
ATL
Excellent 10.0

On time departure and arrival. The Airbus plane has enough legroom for tall persons.

LGA
CVG
Excellent 8.3

Plane was far too tight. Very uncomfortable for taller individuals.

MOB
ATL
Good 6.0

Felt like I was sitting in my neighbors lap!

Thu, Nov 30
ORD
BIO
12h 15m
Sun, Dec 3
BIO
ORD
18h 20m
$1388
Trip: 4 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16763 reviews
Overall
8.2
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MCO
FRA
Excellent 8.0

No language options on tv besides english.

LAX
FRA
Excellent 9.3

timeliness of departure time in flight service quality in flight food offering other than main meals friendliness of flight crew linguistic capabilities of flight crew

touch screen for in flight entertainment did not work very well

FRA
TLV
Mediocre 3.0

There was no food included, although the flight wasn't low cost, we didn't even get drinks, not even water. We asked for a glass of water from the crew, but they were busy selling the food and forgot about us.

FCO
FRA
Excellent 10.0

Ease and concenience

DEN
FRA
Good 7.6

LATE!! This is rediculous for a flight company not to be able to board on time so I miss my connection and get stuck for 6 hours

Mon, Nov 27
ORD
BIO
22h 55m
Wed, Nov 29
BIO
ORD
30h 34m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 1
ORD
BIO
35h 15m
Tue, Dec 5
BIO
ORD
32h 25m
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16502 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
LAX
Excellent 10.0

All was perfect

Nothing

IST
AMS
Excellent 10.0

The flight attendants were amazing. The entertainment. And the comfortability

BOS
IST
Excellent 10.0

Turkish Airlins is so wonderful, and I really appreciate being treated like a human being at IST (unlike Schipol, De Gaulle, other airports to connect at around Europe).

MXP
IST
Good 7.6

The food and entertainment was good. The crew was very nice.

IST
AMS
Excellent 10.0

Quality of Service

-

Fri, Mar 23
ORD
BIO
32h 35m
Fri, Mar 30
BIO
ORD
15h 44m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 6
ORD
BIO
35h 15m
Sun, Dec 10
BIO
ORD
32h 25m
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16502 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
LAX
Excellent 10.0

All was perfect

Nothing

SFO
IST
Mediocre 2.0

N/A

Connecting both flights would be good

BOS
IST
Excellent 10.0

Turkish Airlins is so wonderful, and I really appreciate being treated like a human being at IST (unlike Schipol, De Gaulle, other airports to connect at around Europe).

IST
LGW
Good 7.6

Again a good solid basic service with good food well prepared and agreeably served by a pleasant staff. Thank you

Planes are a little small for a fairly long haul business service. Nice but small - so basic amenities.

MXP
IST
Good 7.6

The food and entertainment was good. The crew was very nice.

Wed, Dec 6
ORD
BIO
28h 10m
Sat, Dec 9
BIO
ORD
32h 18m
$1005
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 2816 reviews
Overall
7.6
Boarding
7.5
Comfort
7.4
Crew
8.1
Entertainment
6.9
Food
7.2
LIS
MIA
Okay 4.6

All flights have been on time. Seats and entertainment system are acceptable

Apart from the unorganized immigration and check-in process the service is very average. On both transatlantic flights the toilets did not work properly. Furthermore the business practice to charge you for any luggage $ 90 at airport without prior notice during the booking process is quite unpleasant and uncommon for transatlantic flights. Would be good that airline as well as internet travel agent would advice about this additional costs in a more transparent way before you purchase the ticket

BUD
LIS
Okay 5.0

The food and flight attendants were very nice and accommodating.

I had a 17 kg big baggage and a 7 kg hand baggage and was forced by the hungarian check-in attendant to pay the equivalent of 112 usd. I nearly missed my flight as nobody understood why I had to pay extra since my baggage was under - weight. Outrageous! Will not use Tap Portugal again and definetly won't recommend. Maria Petrita

BUD
LIS
Excellent 10.0

The plane was on time, attendants were friendly. Food and drink was provided at no additional cost.

I have no complaints!

LIS
BOS
Okay 5.3

75 Euro per bag!!!

LIS
MIA
Okay 5.6

Accommodating flight crew. Good food. Nice landing and take off.

I am a permanent resident of USA and have a Green Card and the portuguese boarding crew gave me a hard time about my paper work. I was very disappointed by the way they treated me.

Wed, Dec 6
ORD
BIO
30h 50m
Tue, Dec 19
BIO
ORD
32h 25m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 1
ORD
BIO
24h 30m
Mon, Dec 4
BIO
ORD
21h 56m
$1040
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 2816 reviews
Overall
7.6
Boarding
7.5
Comfort
7.4
Crew
8.1
Entertainment
6.9
Food
7.2
AMS
LIS
Okay 5.2

I got to Lisbon on time.

just another bus ride

LIS
JFK
Excellent 9.0

business class was great seat comfortable the lounge was very nice

Food on plane ok wish had more choices

BUD
LIS
Excellent 10.0

The plane was on time, attendants were friendly. Food and drink was provided at no additional cost.

I have no complaints!

BUD
LIS
Okay 5.0

The food and flight attendants were very nice and accommodating.

I had a 17 kg big baggage and a 7 kg hand baggage and was forced by the hungarian check-in attendant to pay the equivalent of 112 usd. I nearly missed my flight as nobody understood why I had to pay extra since my baggage was under - weight. Outrageous! Will not use Tap Portugal again and definetly won't recommend. Maria Petrita

LIS
MIA
Okay 4.6

All flights have been on time. Seats and entertainment system are acceptable

Apart from the unorganized immigration and check-in process the service is very average. On both transatlantic flights the toilets did not work properly. Furthermore the business practice to charge you for any luggage $ 90 at airport without prior notice during the booking process is quite unpleasant and uncommon for transatlantic flights. Would be good that airline as well as internet travel agent would advice about this additional costs in a more transparent way before you purchase the ticket

Sun, Dec 24
MDW
BIO
20h 05m
Sun, Dec 31
BIO
MDW
19h 36m
$1207
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1468 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.5
MUC
AMS
Good 7.6

Great food

Sears we're toooo small

SVO
AMS
Okay 5.2

KLM can't seem to figure out the order of boarding the plane. Should be business - priority - everyone else. Instead they do priority first, and that's usually two-thirds of the passengers. Also, really tired of the fake business class on these flights...

ATL
CLE
Okay 4.0

OLD plane without comfort or entertainment

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

AMS
SFO
Excellent 10.0

Loved the service...everything was excellent

The bus class seat was a bit narrow at the feet

Fri, Dec 8
ORD
BIO
35h 15m
Tue, Dec 12
BIO
ORD
32h 25m
$1003
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16502 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
AUH
IST
Good 6.0

Efficient and clean with decent size seats but not to the standards of the MIddle eastern airlines. Good if compared to a intra-europe flight.

Seats we’re tight and not what’s expected these days for a night flight over three hours Internationally.

MXP
IST
Good 7.6

The food and entertainment was good. The crew was very nice.

IST
FCO
Excellent 10.0

Same!

BOS
IST
Excellent 10.0

Turkish Airlins is so wonderful, and I really appreciate being treated like a human being at IST (unlike Schipol, De Gaulle, other airports to connect at around Europe).

SFO
IST
Mediocre 2.0

N/A

Connecting both flights would be good

Mon, Dec 4
ORD
BIO
30h 15m
Thu, Dec 7
BIO
ORD
19h 13m
$1040
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 2816 reviews
Overall
7.6
Boarding
7.5
Comfort
7.4
Crew
8.1
Entertainment
6.9
Food
7.2
AMS
LIS
Okay 5.2

I got to Lisbon on time.

just another bus ride

LIS
BOS
Okay 5.3

75 Euro per bag!!!

LIS
MAD
Mediocre 2.0

Of no change is BULLSHIT

BUD
LIS
Excellent 10.0

The plane was on time, attendants were friendly. Food and drink was provided at no additional cost.

I have no complaints!

MIA
LIS
Mediocre 2.0

Ability to see a bit of Lisbon on the way

Baggage charges that were not shown anywhere on the website. A nasty surprise when we checked luggage. Lost wallet on plane and customer service was unhelpful.

Fri, Dec 8
ORD
BIO
11h 10m
Mon, Dec 11
BIO
ORD
26h 00m
$1296
Trip: 4 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
DEN
Excellent 10.0

Everything

CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

VIE
LHR
Excellent 8.0

punctuality

trapped on this plane for over 3 hours and they can't even spring for a lousy soda and bag of crisps.

LHR
BOS
Okay 5.6

Were very nice and accomodating

Entertainment only worked sporadiaclly, crew tried toreaet it numerous times

ORD
LHR
Good 6.6

Excellent vegan meal selection!

No Wifi, average movie selection, cramped space, 2+ hour delay (half of which was spent sitting on plane).

Thu, Dec 7
ORD
BIO
19h 10m
Tue, Dec 19
BIO
ORD
32h 25m
$1007
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.