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Cheap flights from Porto to Illinois from $425

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Illinois departing on 6/20. 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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0 bags

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Find the cheapest flights from Porto to Illinois

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Porto to Illinois.
 Logo
8:15 am - 2:15 pmOPO-ORD
12h 00m1 stop
 Logo
8:20 pm - 7:30 pmORD-OPO
17h 10m1 stop
Wed, Apr 16 - Tue, Apr 22
Delta Logo
6:20 am - 2:40 pmOPO-ORD
14h 20m1 stop
Delta Logo
6:15 pm - 3:30 pmORD-OPO
15h 15m2 stops
$660Delta
Find Deal
Tue, Apr 15 - Tue, Apr 22
KLM Logo
6:50 pm - 2:40 pmOPO-ORD
25h 50m1 stop
KLM Logo
4:50 pm - 7:15 pmORD-OPO
20h 25m1 stop
$664KLM
Find Deal
Tue, Apr 15 - Tue, Apr 22
KLM Logo
6:30 am - 5:46 pmOPO-ORD
17h 16m2 stops
KLM Logo
7:00 pm - 3:35 pmORD-OPO
14h 35m2 stops
$671KLM
Find Deal
Thu, Jun 12 - Tue, Jun 24
British Airways Logo
8:15 am - 2:15 pmOPO-ORD
12h 00m1 stop
British Airways Logo
10:20 pm - 8:20 pmORD-OPO
16h 00m1 stop
$689British Airways
Find Deal
Thu, Apr 17 - Sun, Apr 20
British Airways Logo
8:15 am - 7:40 pmOPO-ORD
17h 25m2 stops
British Airways Logo
3:58 pm - 6:40 pmORD-OPO
20h 42m2 stops
$695British Airways
Find Deal
Thu, May 8 - Wed, May 14
United Airlines Logo
6:00 am - 7:46 amOPO-ORD
31h 46m2 stops
United Airlines Logo
10:40 am - 9:35 amORD-OPO
16h 55m1 stop
$742United Airlines
Find Deal
Sat, May 31 - Sat, Jun 14
United Airlines Logo
6:00 am - 7:55 pmOPO-ORD
19h 55m1 stop
United Airlines Logo
7:10 am - 9:45 amORD-OPO
20h 35m1 stop
$752United Airlines
Find Deal
Sun, Apr 20 - Tue, May 6
Turkish Airlines Logo
10:55 am - 9:40 amOPO-ORD
28h 45m1 stop
Turkish Airlines Logo
11:25 am - 9:50 amORD-OPO
16h 25m1 stop
$811Turkish Airlines
Find Deal
Mon, Jun 30 - Tue, Jul 8
Turkish Airlines Logo
10:50 am - 9:40 amOPO-ORD
28h 50m1 stop
Turkish Airlines Logo
11:45 pm - 9:50 amORD-OPO
28h 05m1 stop
$838Turkish Airlines
Find Deal
Tue, Jul 1 - Mon, Jul 7

Delta flights from Porto to Illinois

Our best Delta deals on Porto to Illinois flight tickets
Delta
Apr 15
OPO6:20 amPorto
14h 20m
1 stop
ORD2:40 pmChicago O'Hare Intl
Apr 22
ORD6:15 pmChicago O'Hare Intl
15h 15m
2 stops
OPO3:30 pmPorto
Delta
Apr 15
OPO6:20 amPorto
17h 54m
2 stops
ORD6:14 pmChicago O'Hare Intl
Apr 22
ORD6:15 pmChicago O'Hare Intl
15h 15m
2 stops
OPO3:30 pmPorto
Delta
Apr 16
OPO6:20 amPorto
14h 20m
1 stop
ORD2:40 pmChicago O'Hare Intl
Apr 23
ORD12:15 pmChicago O'Hare Intl
16h 25m
2 stops
OPO10:40 amPorto

KLM flights from Porto to Illinois

Our best KLM deals on Porto to Illinois flight tickets
KLM
Apr 15
OPO6:50 pmPorto
25h 50m
1 stop
ORD2:40 pmChicago O'Hare Intl
Apr 22
ORD4:50 pmChicago O'Hare Intl
20h 25m
1 stop
OPO7:15 pmPorto
KLM
Jun 12
OPO6:30 amPorto
17h 16m
2 stops
ORD5:46 pmChicago O'Hare Intl
Jun 24
ORD7:00 pmChicago O'Hare Intl
14h 35m
2 stops
OPO3:35 pmPorto
KLM
Apr 15
OPO6:20 amPorto
17h 54m
2 stops
ORD6:14 pmChicago O'Hare Intl
Apr 22
ORD4:50 pmChicago O'Hare Intl
23h 25m
1 stop
OPO10:15 pmPorto

See travel insights to Illinois from

How to get the cheapest flight ticket from Porto to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Porto is in March. Flight prices, which tend to average around $635, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $644.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Porto to Illinois is on a Saturday when prices can be found for as low as $581. Flights from Porto to Illinois on a Friday will generally be more expensive and average around $956. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Porto to Illinois during this time can be as low as $817. Flights in the morning are often more expensive with an average ticket price of $817.

Cheap Porto to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Illinois

Best Price Found

$425

Fastest flight time

11h 30m

Direct flights

None

Airports in Illinois

2 airports
The best one-way flight to Illinois from Porto in the past 72 hours is $425. The best round-trip flight deal from Porto to Illinois found on momondo in the last 72 hours is $656.
The fastest flight from Porto to Illinois takes 11h 30m
There are no direct flights from Porto to Illinois. Popular non-direct routes for this connection are Porto Airport - Chicago O'Hare Intl Airport and Porto Airport - Lambert-St Louis Airport.
There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Lambert-St Louis (STL)

  • When did momondo last update prices for flights from Porto Airport to Illinois?

    Prices for flights from Porto Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Porto Airport to Illinois?

  • How old do you have to be to fly from Porto Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Best airlines flying from Porto to Illinois

Compare and see reviews for airlines that fly from Porto to Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $746Free CancellationRating
7.4
8,619 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Illinois?

Finding the right flight to Illinois from Porto is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Porto to Illinois with flexible booking policies on momondo?

Flights from Porto to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Porto to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Porto.

I’m not ready to book a flight from Porto to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Porto to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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