Cheap Flights from Porto to Chicago
No deal from Porto to Chicago has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from Porto to Chicago, the lowest round-trip fare we recorded was $669, in July. The typical fare was $769. July was the cheapest month we saw and October the dearest.
The most recent price we saw on this route was $829 on American and Iberia, seen Oct 15. It is an unverified observation and may have changed.
See every deal <a href="/from/porto">from Porto</a>, <a href="/to/chicago">to Chicago</a>, or the return direction <a href="/from/chicago/to/porto">Chicago to Porto</a>.
Latest price we saw: Porto to Chicago
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Porto (OPO) to Chicago (ORD) | $829 | 10.5¢ | Nov 6 – Nov 12 | American and Iberia | Oct 15 | Check price |
Price history: Porto to Chicago
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $827 | $836 | 4 |
| Sep 2026 | $707 | $797 | 2 |
| Aug 2026 | $771 | $774 | 8 |
| Jul 2026 | $669 | $669 | 1 |
Frequently asked questions
How many flight deals from Porto to Chicago are on Sparkflights right now?
There are 0 verified deals from Porto to Chicago on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Porto to Chicago?
The lowest fare we've recorded from Porto to Chicago is $669, based on 15 price observations over 4 months.
How much does a flight from Porto to Chicago cost?
The typical round-trip fare we observed from Porto to Chicago is $769, against a recorded low of $669. These are observations, not quotes.
When is the cheapest month to fly Porto to Chicago?
July was the cheapest month we observed from Porto to Chicago and October the dearest, over 4 months of data.
What is the current price from Porto to Chicago?
The most recent fare our sweep saw from Porto to Chicago is $829, on Oct 15. It is an unverified observation rather than a verified deal, so check it before booking.