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Cheap flights from Porto to Illinois from $405

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 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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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.
Scandinavian Airlines Logo
5:55 pm - 4:10 pmOPO-ORD
28h 15m1 stop
Scandinavian Airlines Logo
7:15 pm - 5:05 pmORD-OPO
15h 50m1 stop
$522Scandinavian Airlines
Find Deal
Fri, Oct 10 - Thu, Oct 16
Scandinavian Airlines Logo
5:55 pm - 4:10 pmOPO-ORD
28h 15m1 stop
Scandinavian Airlines Logo
7:15 pm - 11:00 amORD-OPO
33h 45m1 stop
$581Scandinavian Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
Delta Logo
6:30 am - 2:10 pmOPO-ORD
13h 40m1 stop
Delta Logo
6:27 pm - 3:30 pmORD-OPO
15h 03m2 stops
$689Delta
Find Deal
Thu, Jun 12 - Tue, Jun 24
 Logo
10:30 pm - 3:55 pmOPO-ORD
23h 25m2 stops
 Logo
9:40 pm - 10:05 pmORD-OPO
18h 25m2 stops
Thu, May 15 - Thu, May 29
Delta Logo
6:30 am - 6:03 pmOPO-ORD
17h 33m2 stops
Delta Logo
2:00 pm - 3:30 pmORD-OPO
19h 30m2 stops
$694Delta
Find Deal
Thu, Jun 12 - Tue, Jun 24
KLM Logo
6:40 am - 6:03 pmOPO-ORD
17h 23m2 stops
KLM Logo
7:00 pm - 3:35 pmORD-OPO
14h 35m2 stops
$706KLM
Find Deal
Fri, Jun 13 - Mon, Jun 23
 Logo
12:25 pm - 3:55 pmOPO-ORD
33h 30m3 stops
 Logo
9:40 pm - 10:05 pmORD-OPO
18h 25m2 stops
Thu, May 15 - Thu, May 29
British Airways Logo
9:55 am - 6:15 pmOPO-ORD
14h 20m1 stop
British Airways Logo
10:25 pm - 8:20 pmORD-OPO
15h 55m1 stop
$726British Airways
Find Deal
Thu, May 15 - Thu, May 29
British Airways Logo
9:55 am - 6:15 pmOPO-ORD
14h 20m1 stop
British Airways Logo
10:25 pm - 8:20 pmORD-OPO
15h 55m1 stop
$727British Airways
Find Deal
Thu, May 15 - Thu, May 29
KLM Logo
6:50 pm - 2:10 pmOPO-ORD
25h 20m1 stop
KLM Logo
4:20 pm - 7:15 pmORD-OPO
20h 55m1 stop
$732KLM
Find Deal
Tue, Jun 3 - Tue, Jun 10

Scandinavian Airlines flights from Porto to Illinois

Our best Scandinavian Airlines deals on Porto to Illinois flight tickets
Scandinavian Airlines
Oct 10
OPO5:55 pmPorto
28h 15m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 16
ORD7:15 pmChicago O'Hare Intl
15h 50m
1 stop
OPO5:05 pmPorto
Scandinavian Airlines
Oct 10
OPO5:55 pmPorto
28h 15m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 13
ORD7:15 pmChicago O'Hare Intl
33h 45m
1 stop
OPO11:00 amPorto
Scandinavian Airlines
Oct 8
OPO11:50 amPorto
34h 20m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 16
ORD7:15 pmChicago O'Hare Intl
15h 50m
1 stop
OPO5:05 pmPorto

British Airways flights from Porto to Illinois

Our best British Airways deals on Porto to Illinois flight tickets
British Airways
May 15
OPO9:55 amPorto
14h 20m
1 stop
ORD6:15 pmChicago O'Hare Intl
May 29
ORD10:25 pmChicago O'Hare Intl
15h 55m
1 stop
OPO8:20 pmPorto
British Airways
May 15
OPO9:55 amPorto
14h 20m
1 stop
ORD6:15 pmChicago O'Hare Intl
May 29
ORD10:25 pmChicago O'Hare Intl
15h 55m
1 stop
OPO8:20 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

$405

Fastest flight time

12h 55m

Direct flights

None

Airports in Illinois

2 airports
The best one-way flight to Illinois from Porto in the past 72 hours is $405. The best round-trip flight deal from Porto to Illinois found on momondo in the last 72 hours is $522.
The fastest flight from Porto to Illinois takes 12h 55m
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 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.


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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