Cheap flight from Chicago to Porto from $392
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Flights from Chicago to Porto
Find cheap airlines flights from Chicago to Porto
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Cheap flight deals from Chicago to Porto
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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ORD 9:40 PM19h 40m1 stopsOPO 11:20 PMChicago - Porto | Mon, Jun 23 | United Airlines
OPO 7:20 PM22h 50m1 stopsORD 12:10 PMPorto - Chicago | Mon, Jun 30 | Swiss Airlines$692 $84218% OFF18% OFF$842 $692 -
ORD 1:26 PM14h 19m1 stopsOPO 9:45 AMChicago - Porto | Tue, Jun 24 | United Airlines
OPO 7:20 PM22h 50m1 stopsORD 12:10 PMPorto - Chicago | Mon, Jun 30 | Swiss Airlines$692 $84218% OFF18% OFF$842 $692
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ORD 5:55 PM11h 50m1 stopsOPO 11:45 AMChicago - Porto | Mon, Jun 9 | United Airlines
OPO 1:30 PM14h 35m1 stopsORD 10:05 PMPorto - Chicago | Mon, Jun 16 | Air Transat$702 $84217% OFF17% OFF$842 $702
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ORD 6:00 AM21h 45m1 stopsOPO 9:45 AMChicago - Porto | Fri, May 16 | United Airlines
OPO 9:00 AM13h 46m1 stopsORD 4:46 PMPorto - Chicago | Fri, May 23 | United Airlines$70716% OFF$842 $707
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MDW 9:40 AM20h 15m1 stopsOPO 11:55 AMChicago - Porto | Mon, May 26 | Porter Airlines
OPO 1:30 PM33h 24m1 stopsMDW 4:54 PMPorto - Chicago | Tue, Jun 3 | Air Transat$71615% OFF$842 $716 -
ORD 7:10 AM20h 35m1 stopsOPO 9:45 AMChicago - Porto | Sun, May 18 | United Airlines
OPO 11:05 AM31h 25m1 stopsORD 12:30 PMPorto - Chicago | Sun, May 25 | Lufthansa$71715% OFF$842 $717
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ORD 9:40 PM19h 40m1 stopsOPO 11:20 PMChicago - Porto | Mon, May 19 | Lufthansa
OPO 8:40 AM13h 15m1 stopsORD 3:55 PMPorto - Chicago | Tue, May 27 | Swiss Airlines$72414% OFF$842 $724 -
ORD 7:05 PM30h 40m1 stopsOPO 7:45 AMChicago - Porto | Tue, Jun 24 | Swiss Airlines
OPO 7:20 PM22h 50m1 stopsORD 12:10 PMPorto - Chicago | Mon, Jun 30 | Swiss Airlines$72414% OFF$842 $724 -
ORD 10:46 AM14h 59m1 stopsOPO 7:45 AMChicago - Porto | Tue, May 27 | United Airlines
OPO 12:05 PM13h 50m1 stopsORD 7:55 PMPorto - Chicago | Tue, Jun 3 | United Airlines$72414% OFF$842 $724
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ORD 10:42 AM14h 13m1 stopsOPO 6:55 AMChicago - Porto | Mon, May 26 | United Airlines
OPO 9:00 AM13h 46m1 stopsORD 4:46 PMPorto - Chicago | Tue, Jun 3 | United Airlines$72514% OFF$842 $725
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CHI 1:00 PM17h 25m1 stopsOPO Invalid DateChicago - Porto | Sun, May 18 | Normal Airline
OPO 3:00 PM6hNonstopCHI 4:00 PMPorto - Chicago | Tue, May 20 | Normal AirlineFind More FlightsFind More Flights
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ORD 5:40 PM19h 5m1 stopsOPO 6:45 PMChicago - Porto | Fri, May 16 | American Airlines$392 $60435% OFF35% OFF$604 $392 -
ORD 11:55 AM15h 50m1 stopsOPO 9:45 AMChicago - Porto | Fri, May 16 | United Airlines$473 $60422% OFF22% OFF$604 $473
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ORD 4:40 PM12h 15m1 stopsOPO 10:55 AMChicago - Porto | Wed, Jun 4 | American Airlines$495 $60418% OFF18% OFF$604 $495
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ORD 5:51 AM23h 49m1 stopsOPO 11:40 AMChicago - Porto | Tue, Jun 3 | Spirit Airlines$50616% OFF$604 $506 -
MDW 9:40 AM20h 5m1 stopsOPO 11:45 AMChicago - Porto | Wed, Jun 11 | Air Transat$50716% OFF$604 $507 -
MDW 9:40 AM20h 5m1 stopsOPO 11:45 AMChicago - Porto | Sun, Jun 8 | Porter Airlines$51015% OFF$604 $510
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ORD 10:15 PM27h 20m1 stopsOPO 7:35 AMChicago - Porto | Mon, Jun 30 | Iberia$51515% OFF$604 $515 -
ORD 7:30 AM22h 10m1 stopsOPO 11:40 AMChicago - Porto | Fri, Jun 27 | American Airlines$51515% OFF$604 $515
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ORD 7:05 PM34h 25m1 stopsOPO 11:30 AMChicago - Porto | Fri, May 16 | Swiss$51714% OFF$604 $517
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ORD 12:00 PM17h 45m1 stopsOPO 11:45 AMChicago - Porto | Mon, Jun 2 | Air Canada$51914% OFF$604 $519 -
CHI 1:00 PM17h 25m1 stopsOPO Invalid DateChicago - Porto | Sun, May 18 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Info | Chicago to Porto
| Cheapest one-way flight price | $391 |
|---|---|
| Off-season for travel | March |
| Peak season for travel | June |
| Flight distance | 6,318.63 km |
| Popular airline | Iberia |
When is the cheapest time to fly from Chicago to Porto?
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Frequently Asked Questions
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When are flight tickets from Chicago (CHI) to Porto (OPO) the cheapest?
Airlines adjust prices for flights from Chicago to Porto based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Chicago (CHI) to Porto (OPO) cost?
According to Trip.com's data, the lowest price is around $1,045.
How to find a cheap flight from Chicago to Porto
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