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

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Looking for a cheap flight? 25% of our users found flights on this route for $878 or less.

FAQs for Booking Chicago to Bilbao Flights

How long does a flight from Chicago to Bilbao take?
An average nonstop flight takes 12h 55m, 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 ($562), Turkish Airlines ($576) and Lufthansa ($599).
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, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Bilbao back to Chicago, the best deals are generally found on Monday, with Wednesday being the most expensive.

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

Airports
Origin
Chicago
$562
only
$562
$635
only
$635
Destination
Bilbao
$562
only
$562
Tue, Feb 6
ORD
BIO
23h 55m
Tue, Feb 13
BIO
ORD
23h 13m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 7
ORD
BIO
35h 15m
Sun, Feb 11
BIO
ORD
32h 25m
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17553 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
LAX
IST
Excellent 8.3

Asian Vegetarian meal was good.

Seats with less leg room . No WIfi facility at the gate .

KTM
IST
Mediocre 2.0

I did nit like anything...

I hate kayak..

IST
TXL
Good 6.8

It was on time and we got there safely, otherwise not memorable in any way.

The staff...not very outgoing....they clearly wish that they were somewhere else.

NRT
IST
Excellent 10.0

World-class service at a price, convenience of connections, still free seat resevation and decent luggage allowance, two suitcases, for all of which other carriers extort extra payments.

Little bit quicker tray collection after meal.

IST
IAH
Mediocre 2.0

Transfer desk in Istanbul is terrible. Poor customer service. It took 6 hours to get transferred from the airport to the hotel.

Tue, Mar 20
ORD
BIO
13h 15m
Mon, Mar 26
BIO
ORD
26h 45m
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18172 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BOM
MUC
Excellent 8.0

I like crew members service

Didn’t like seat was not comfortable plus some time smells bad in flight

DEN
MUC
Excellent 10.0

Lufthansa is extremely efficient, and the staff is very helpful all while being cheerful and kind. The planes are new and clean, everything was a notch above typical economy carriers. Well done!

FRA
CAI
Excellent 8.0

Frankfurt to Cairo boarding was in organized gate 61 toilet not cleane 90% of the phone chargers in Frankfurt airport not working

Lufthansa is a big name must do something for that

DEN
MUC
Excellent 10.0

Flight attendants were helpful without waking up passengers wjo wanted to sleep.

BOS
FRA
Excellent 10.0

Comfortable seats; food was adequate

Seats seem a bit close to one another, with little knee room

Mon, Mar 19
ORD
BIO
12h 55m
Mon, Mar 26
BIO
ORD
29h 35m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 1473 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
BRU
BOD
Mediocre 2.0

I never boarded Brussels airlines. United Airlines put me on TAP or TP which I did like. But my luggage wasn’t forwarded until the 15th dec. Brussels had many natural disasters. My problems I believe were with either United Airlines or Swissport Luggage department

LHR
BRU
Excellent 9.5

Crew members were very friendly, plane was clean, seats were comfortable, and flight was much quicker than what I thought it was going to be. Boarding was a tiny bit unorganized, but overall flight was great.

Boarding was a bit disorganized. I had brought my carry-on but the lady at the counter said I had to check it with baggage (which ended up getting delayed once we landed for an additional 15 minutes)

BRU
BUD
Excellent 8.0

Ease of boarding, reasonably comfortable seats on a short flight.

No liquids (soda, coffee, water) offered.

BRU
JFK
Excellent 10.0

Everything

EDI
BRU
Excellent 8.3

It was easy boarding. The flight crew had been been late due to a bad taxi driver. We still arrived on time!

No complaints.

Tue, Mar 20
ORD
BIO
15h 30m
Tue, Apr 3
BIO
ORD
16h 54m
Trip: 15 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SEA
LHR
Excellent 8.0

Quality of food

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

LHR
FCO
Excellent 10.0

Friendly crew. Good day in the skies.

LHR
JFK
Mediocre 3.6

Nothing about wheelchairs

When arrived they don't take wheelchairs

Wed, Mar 14
MDW
BIO
23h 55m
Tue, Mar 20
BIO
MDW
28h 12m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1656 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
ATL
AMS
Excellent 8.0

Cabin Crew was awesome.

Entertainment System was not working and no Non-veg food option in flight.

AMS
ACC
Okay 4.0

Flight was delayed for three hours and was a very stressful flight

Flight was not on time and got to destination very very late pier management of aircrafts

AMS
ATL
Excellent 9.3

Entertainment was good, and crew was very nice and accommodating. Flight was very comfortable and smooth.

The food was okay, not that great.

MAN
AMS
Mediocre 2.0

Ground staff at Manchester very helpful

Information on KLM website and flight status said 50 minutes delay and was never updated with the true status. 3 hours before we took off. KLM blamed the fog at Manchester but to be honest most other flights seemed unaffected. Put up in an IBIS hotel and fed substandard food and shitty hotel room with an Aircon unit that clunks into action every 30 seconds keeping me awake. It's external so I can't switch it off. Being given a 10 Euro voucher for food at the airport when most food and a drink will cost you 12 to 15 euros.

SFO
AMS
Mediocre 2.0

Service from airline host Poorly maintained plane Bad food Old entertainment

Sun, Mar 25
MDW
BIO
16h 10m
Tue, Apr 3
BIO
MDW
16h 07m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15315 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
PDX
JFK
Excellent 8.3

Food

Leg room

DFW
LGA
Excellent 10.0

Good service, more leg room than American Airlines.

Everything was good.

ATL
BWI
Okay 4.6

Snacks & beverages on a 1 hour flight. Very nice crew

Older plane, no entertainment

CMH
ATL
Okay 5.0

As poltronas estavam OK.

No voo MEX-GRU o Sistema de Entretenimento nao funcionou por quase 3hs. A refeicao foi muito fraca, tamto no jantar quanto no café da manhã. Onde ja se viu comer feijão preto com onelete no cafe da manhã??? Deveriam pensar no tipo de passageiro q estao atendendo.

BNA
BOS
Mediocre 2.0

Delta staff taking care of rude/beligerant guests first vedore guests patiently/kindly waiting in line ... children watched that behavior and the jerks recieved special treatment. Flight staff ripped up guests boarding pass in face. Staff allowed ys to board plane and put our bags under plane and then crew timed out before take off. Never will use Delta again.

Mon, Jun 25
ORD
BIO
15h 10m
Fri, Jul 6
BIO
ORD
11h 55m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 5
ORD
BIO
24h 05m
Tue, Feb 13
BIO
ORD
23h 13m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 7
ORD
BIO
35h 15m
Tue, Feb 13
BIO
ORD
32h 25m
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17553 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
IST
ZAG
Good 7.6

The food was great. The seats were soft and there was enough legroom.

We were stuck on an aisle where the seats don't adjust on one of the flights, but it was a relatively short flight. The boarding process was a little disorganized, but we were able to get on the plane quickly. The worst part was the home airport. I don't know how much control Turkish airlines has over that airport, but the bathrooms we're absolutely disgusting.

KTM
IST
Mediocre 2.0

I did nit like anything...

I hate kayak..

IST
ATL
Mediocre 3.6

the flight attendants were more present and even spoke English.

NBO
IST
Mediocre 3.0

flight attendants from Nairobi to Istanbul were rude and unaccomodating. asking for a glass of water appeared to overwhelm the flight attendant.

SFO
IST
Good 6.6

The entertainment system was nice, the drinks were good, and the food was OK in Economy Class

The cabin crew was not very outgoing and not proactive in any way when it came to helping customers. The overall 777 plane was OK. I would have liked to see if the A380 was nicer. The entertainment screens were lower resolution with a good, but not great selection of content.

Sun, Mar 18
ORD
BIO
13h 15m
Wed, Mar 28
BIO
ORD
17h 45m
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18172 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
CGN
MUC
Good 7.0

Delayed

BOM
MUC
Excellent 8.0

I like crew members service

Didn’t like seat was not comfortable plus some time smells bad in flight

BOS
FRA
Excellent 10.0

Comfortable seats; food was adequate

Seats seem a bit close to one another, with little knee room

DEN
MUC
Excellent 10.0

Lufthansa is extremely efficient, and the staff is very helpful all while being cheerful and kind. The planes are new and clean, everything was a notch above typical economy carriers. Well done!

FRA
SCQ
Good 6.0

My luggage didn’t arrived in Santiago And it was so frustrating start my vacation Here without medicines, winter clothes, Phones cables and chargers etc et I would like to know When I can have my suitcases

Fri, Feb 9
ORD
BIO
35h 15m
Tue, Feb 13
BIO
ORD
32h 25m
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17553 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
IST
IAH
Mediocre 2.0

Transfer desk in Istanbul is terrible. Poor customer service. It took 6 hours to get transferred from the airport to the hotel.

IAD
IST
Good 7.6

There was a female attendant who as soon as I got to my seat asked me to stop blocking the aisle. I found this very annoying because I'd only just stopped at my seat. I found her manner disrespectful.

NBO
IST
Mediocre 3.0

flight attendants from Nairobi to Istanbul were rude and unaccomodating. asking for a glass of water appeared to overwhelm the flight attendant.

LAX
IST
Excellent 8.3

Asian Vegetarian meal was good.

Seats with less leg room . No WIfi facility at the gate .

IAD
IST
Excellent 10.0

Excellent service with comfort

All was great

Mon, Mar 26
ORD
BIO
15h 10m
Tue, Apr 3
BIO
ORD
16h 54m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
ORD
Good 6.6

Flight on time, friendly crew.

Not so good meals. For a 9 long-haul flight only one meal provided, other was a cheap candy bar. Other carriers do offer breakfast. Traveled with child and did not allow priority boarding at LHR. Limited leg room, I assume this already a trend well known by travelers.

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

LHR
TLV
Okay 5.6

the staff

aircraft, food, entertainment

LHR
DFW
Excellent 10.0

I arrived safely and on time.....good movie selection

Breakfast out of London was not appealing - eggs not tasty and potatoes mushy and lacking in taste.

ORD
LHR
Excellent 9.3

the first flight from Chicago to London was great. very good aircraft.

Tue, Mar 20
ORD
BIO
22h 45m
Tue, Mar 27
BIO
ORD
31h 55m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 19
ORD
BIO
17h 35m
Wed, Mar 28
BIO
ORD
14h 00m
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18172 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
DEN
FRA
Excellent 10.0

Slept like a baby with no interruptions.

FRA
SCQ
Good 6.0

My luggage didn’t arrived in Santiago And it was so frustrating start my vacation Here without medicines, winter clothes, Phones cables and chargers etc et I would like to know When I can have my suitcases

BOS
FRA
Excellent 10.0

Comfortable seats; food was adequate

Seats seem a bit close to one another, with little knee room

BOM
MUC
Excellent 8.0

I like crew members service

Didn’t like seat was not comfortable plus some time smells bad in flight

DEN
MUC
Excellent 10.0

Lufthansa is extremely efficient, and the staff is very helpful all while being cheerful and kind. The planes are new and clean, everything was a notch above typical economy carriers. Well done!

Sat, Apr 7
MDW
BIO
16h 05m
Tue, Apr 17
BIO
MDW
15h 42m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15315 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ATL
MEX
Excellent 8.3

Tudo conforme esperado em um voo da Delta.

Nada a reclamar.

MEX
ATL
Good 7.0

Beautiful plane, great entertainment system, two bathrooms for economy class, decent food

CMH
ATL
Okay 5.0

As poltronas estavam OK.

No voo MEX-GRU o Sistema de Entretenimento nao funcionou por quase 3hs. A refeicao foi muito fraca, tamto no jantar quanto no café da manhã. Onde ja se viu comer feijão preto com onelete no cafe da manhã??? Deveriam pensar no tipo de passageiro q estao atendendo.

DFW
LGA
Excellent 10.0

Good service, more leg room than American Airlines.

Everything was good.

PDX
JFK
Excellent 8.3

Food

Leg room

Tue, Mar 20
ORD
BIO
13h 15m
Wed, Mar 28
BIO
ORD
14h 00m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18172 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
DEN
MUC
Excellent 10.0

Lufthansa is extremely efficient, and the staff is very helpful all while being cheerful and kind. The planes are new and clean, everything was a notch above typical economy carriers. Well done!

BOS
FRA
Excellent 10.0

Comfortable seats; food was adequate

Seats seem a bit close to one another, with little knee room

DEN
MUC
Excellent 10.0

Flight attendants were helpful without waking up passengers wjo wanted to sleep.

FRA
DRS
Excellent 8.0

The wellcoming on board.

The Long bus drive from the Airport building to the aitcraft.

FRA
CAI
Excellent 8.0

Frankfurt to Cairo boarding was in organized gate 61 toilet not cleane 90% of the phone chargers in Frankfurt airport not working

Lufthansa is a big name must do something for that

Sun, Mar 25
ORD
BIO
16h 15m
Tue, Apr 3
BIO
ORD
16h 54m
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
TLV
Okay 5.6

the staff

aircraft, food, entertainment

PHL
BWI
Excellent 8.5

Very rapid flight. Landed far before scheduled arrival(at least 25 minutes). Checked baggage was delivered before schedule arrival time. Crew was pleasant/helpful.

Flight was changed from what was originally scheduled and purchased. I was informed of the change after the purchase before traveling. Thus I had 4 1/2 hours between flights.

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

IAD
LHR
Good 6.0

General sense of management and professionalism, punctuality.

Lack of attention to detail and general frugality

LHR
FCO
Excellent 10.0

Friendly crew. Good day in the skies.

Wed, Mar 14
ORD
BIO
17h 25m
Tue, Mar 20
BIO
ORD
27h 35m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 6
MDW
BIO
34h 46m
Sat, Apr 14
BIO
MDW
19h 22m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1656 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
ATL
AMS
Excellent 8.0

Cabin Crew was awesome.

Entertainment System was not working and no Non-veg food option in flight.

AMS
ACC
Okay 4.0

Flight was delayed for three hours and was a very stressful flight

Flight was not on time and got to destination very very late pier management of aircrafts

MAN
AMS
Mediocre 2.0

Ground staff at Manchester very helpful

Information on KLM website and flight status said 50 minutes delay and was never updated with the true status. 3 hours before we took off. KLM blamed the fog at Manchester but to be honest most other flights seemed unaffected. Put up in an IBIS hotel and fed substandard food and shitty hotel room with an Aircon unit that clunks into action every 30 seconds keeping me awake. It's external so I can't switch it off. Being given a 10 Euro voucher for food at the airport when most food and a drink will cost you 12 to 15 euros.

EZE
AMS
Good 6.0

una valija se perdió. Eso desató el descontrol que tiene KLM para seguir el equipaje. No hay como hacer tracking. No hay un teléfono a donde hablar, la web está desactualizada y con información equivocada. Direccionan a usar canales de twitter y facebook que no responden. Primer experiencia en KLM y no pienso nunca más usar esta aerolínea. Llevar el equipaje o resolver un problema sobre valijas es de lo más básico de una aerolínea y no lo hacen.

PIT
ATL
Excellent 10.0

Flight was on time and quick and comfortable

Chicago to Bilbao Flight Information

Flights Arrive in Bilbao
Flights Depart from Chicago
Flight Price $562
Distance 4110 miles
Airlines Turkish Airlines, Lufthansa, Brussels Airlines, British Airways, KLM, Delta, Major Airline
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.