Cheap flights from Portugal to Chicago O'Hare Intl Airport from $332
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Chicago O'Hare Intl Airport departing on 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Aer Lingus flights from Portugal to Chicago O'Hare Intl Airport
Our best Aer Lingus deals on Portugal to Chicago O'Hare Intl Airport flight tickets
American Airlines flights from Portugal to Chicago O'Hare Intl Airport
Our best American Airlines deals on Portugal to Chicago O'Hare Intl Airport flight tickets
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How to get the cheapest flight ticket from Portugal to Chicago O'Hare Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Chicago O'Hare Intl Airport?
The month of May is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Portugal averaging around $716.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Tuesday when prices can be found for as low as $868. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Portugal because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,439.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
Flying to Chicago O'Hare Intl Airport from Portugal in the morning is the least expensive time of day to depart. momondo users have found prices as low as $974 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around $1,122. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Portugal to Chicago O'Hare Intl flight route?
Fly from Lisbon Humberto Delgado to Chicago O'Hare Intl for the best Portugal - Chicago O'Hare Intl flight prices
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Portugal when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $855 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Portugal for as low as $590 on momondo.
What cabin class options are available on Portugal to Chicago O'Hare Intl flights?
There are 3 cabin classes available to choose from on Portugal to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Portugal to Chicago O'Hare Intl?
Aer Lingus, TAP AIR PORTUGAL, and Turkish Airlines are the most popular carriers operating from Portugal to Chicago O'Hare Intl
What airlines fly to Chicago O'Hare Intl Airport?
United Airlines, Aer Lingus and TAP AIR PORTUGAL are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Portugal according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 3 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Portugal to Chicago O'Hare Intl Airport on average per week?
As of March 2025, there are 6 flights per week flying from Portugal to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Wed, with 33% of flights taking off on this day.
Cheap Portugal to Chicago O'Hare Intl Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portugal to Chicago O'Hare Intl Airport
When did momondo last update prices for flights from Portugal to Chicago O'Hare Intl Airport?
Prices for flights from Portugal to Chicago O'Hare Intl Airport are updated daily.
How many operators does momondo search for flights from Portugal to Chicago O'Hare Intl Airport?
There are 3 operators available for flights from Portugal to Chicago O'Hare Intl Airport as of March 2025.
How old do you have to be to fly from Portugal to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Portugal to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Portugal to Chicago O'Hare Intl Airport is Airbus A330-900neo, representing 57.89% of all bookings. The subsequent popular models are Airbus A330 at 36.84% and Airbus A330-200 at 5.26%.
Best airlines flying from Portugal to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from Portugal to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $579 | Free Cancellation | Rating 7.0 1,063 reviews | |||
| PriceFrom $580 | Free Cancellation | Rating 7.1 1,827 reviews | |||
| PriceFrom $716 | Free Cancellation | Rating 7.4 8,611 reviews |
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Why should I use momondo to find a flight deal from Portugal to Chicago?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portugal to Chicago for you.
Can I find flights from Portugal to Chicago with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Portugal to Chicago flights to just show those with flexible booking policies.
How can momondo help me find flights from Portugal to Chicago?
momondo helps you find the best flight between Portugal and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Portugal to Chicago right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Portugal and alert you when they change.