Chicago (ORD) to Bilbao (BIO) flight deal in economy from $351
$548 USD
-36%$351 USD
Verified 13 days agoOctober 2026
Mon
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Fair Availability
28% of dates checked are available within 10% of the lowest price
Sunday, October 4th, 2026
Outbound Flights
12h 50m·1 stop
$351 USD
ORDOct 4 16:55
→MADOct 5 08:20
IB 342Airbus A350
3h 20m layover
MADOct 5 11:40
→BIOOct 5 12:45
IB 1099Canadair RJ 1000
15h 35m·1 stop
$351 USD
ORDOct 4 22:15
→MADOct 5 13:30
AA 126Boeing 787
6h 15m layover
MADOct 5 19:45
→BIOOct 5 20:50
IB 439Airbus A320
16h 50m·1 stop
$351 USDORDOct 4 22:15
→MADOct 5 13:30
AA 126Boeing 787
7h 30m layover
MADOct 5 21:00
→BIOOct 5 22:05
IB 441Airbus A320
13h 50m·2 stops
$355 USDORDOct 4 11:40
→PHLOct 4 14:54
AA 1743Boeing 737
1h 26m layover
PHLOct 4 16:20
→MADOct 5 05:35
AA 740Boeing 787
1h 50m layover
MADOct 5 07:25
→BIOOct 5 08:30
IB 429Airbus A321
15h 54m·2 stops
$355 USDORDOct 4 18:01
→EWROct 4 21:29
AA 3253Boeing 737
2h 26m layover
EWROct 4 23:55
→MADOct 5 13:20
IB 328Airbus A321neo
2h 25m layover
MADOct 5 15:45
→BIOOct 5 16:55
IB 435Airbus A319
14h 20m·1 stop
$449 USD
ORDOct 4 21:15
→LHROct 5 11:15
BA 296Boeing 777
4h 15m layover
LHROct 5 15:30
→BIOOct 5 18:35
VY 6311Airbus A320