To find flights from Portland to Chicago complete the form below:
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The following airlines fly from Portland International Airport, Portland, United States to O'Hare International Airport, Chicago, United States:
- United Airlines
- US Airways
- Copa Airlines
- Continental Airlines Inc
- Northwest Airlines
- Lufthansa
- American Airlines Inc
- Alaska Airlines Inc
- British Airways
- Swiss
- Lot-Polish
- Scandinavian Airlines System
- BMI British Midland
- America West
- Delta Air Lines Inc
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