$278 Find Cheap Flights from Illinois to Portugal

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Useful Info
Useful Info

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$278
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Chicago O'Hare Airport to Lisbon

FAQs for booking flights from Illinois to Portugal

  • How does KAYAK find such low prices on flights from Illinois to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Illinois to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Portugal?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Portugal is Lisbon Humberto Delgado Airport (LIS), with an average flight price of $431.

  • What is the cheapest day to fly to Portugal?

    Based on KAYAK data, the cheapest day to fly to Portugal is Wednesday where round-trip tickets can be as cheap as $600. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $900 on average.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally at night, when round-trip flights cost $542 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the evening, which is peak travel time and where the average cost of a ticket is $808.

  • What is the cheapest flight to Portugal?

    The cheapest ticket to Portugal from Illinois found in the last 72 hours was to Lisbon, at $500 round-trip. The most popular route is Chicago O'Hare Intl Airport (ORD) to Lisbon (LIS) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $500.

  • What is the cheapest month to fly from Illinois to Portugal?

    The cheapest month for flights from Illinois to Portugal is January, when tickets cost $546 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,083 and $977 respectively.

  • How far in advance should I book a flight from Illinois to Portugal?

    To get a below average price on the flight from Illinois to Portugal, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

  • How long is the flight to Portugal?

    An average nonstop flight from Illinois to Portugal takes 18h 19m, covering a distance of 3818 miles. The shortest route is Chicago O'Hare Intl Airport (ORD) to Lisbon (LIS) with an average flight time of 7h 55m.

  • What are the most popular destinations in Portugal?

    Based on KAYAK flight searches, the most popular destination is Lisbon (77% of total searches to Portugal). The next most popular destinations are Porto (13%) and Faro (4%). Searches for flights to Ponta Delgada (3%), to Funchal (2%) and to Horta (0%) are also popular.

Book cheap flights from Illinois to Portugal

Recent round-trip flight deals

10/21Tue
1 stopFinnair
19h 45mORD-LIS
11/5Wed
1 stopFinnair
14h 00mLIS-ORD
$492
9/15Mon
1 stopTAP AIR PORTUGAL
18h 50mORD-OPO
9/21Sun
1 stopTAP AIR PORTUGAL
24h 10mOPO-ORD
$502
8/16Sat
1 stopIcelandair
17h 05mORD-LIS
8/21Thu
1 stopIcelandair
25h 55mLIS-ORD
$523
10/21Tue
2 stopsAmerican Airlines
12h 15mORD-LIS
11/5Wed
1 stopAmerican Airlines
14h 20mLIS-ORD
$525
10/5Sun
1 stopAmerican Airlines
15h 15mORD-LIS
10/14Tue
1 stopAmerican Airlines
13h 40mLIS-ORD
$533
8/21Thu
2 stopsScandinavian Airlines
41h 30mORD-FAO
9/6Sat
2 stopsScandinavian Airlines
50h 35mFAO-ORD
$533
10/18Sat
1 stopAir Canada
32h 40mORD-LIS
11/4Tue
1 stopAir Canada
15h 25mLIS-ORD
$537
8/22Fri
1 stopScandinavian Airlines
16h 40mORD-FAO
9/6Sat
2 stopsScandinavian Airlines
50h 35mFAO-ORD
$556
8/13Wed
1 stopIcelandair
17h 05mORD-LIS
8/21Thu
1 stopIcelandair
25h 55mLIS-ORD
$566
10/15Wed
1 stopAir Canada
11h 45mORD-LIS
10/22Wed
1 stopAir Canada
33h 25mLIS-ORD
$581

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Recent one-way flight deals

7/27Sun
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
$278
8/17Sun
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
$281
7/27Sun
1 stop
24h 55mORD-LIS
$290
7/25Fri
1 stop
24h 45mORD-LIS
$301
9/10Wed
1 stopIcelandair
17h 05mORD-LIS
$342
8/27Wed
1 stopIcelandair
19h 55mORD-LIS
$343
8/24Sun
1 stopScandinavian Airlines
19h 25mORD-LIS
$390
8/25Mon
2 stopsScandinavian Airlines
20h 50mORD-LIS
$397
10/15Wed
2 stopsAer Lingus
18h 58mSTL-LIS
$415
10/15Wed
2 stopsAer Lingus
18h 58mSTL-LIS
$416

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Last minute flights from Illinois to Portugal

Last minute flight, train and bus deals

5/4Sun
multi-stop
15h 05mORD-LIS
5/13Tue
multi-stop
13h 40mLIS-ORD
$584
5/1Thu
multi-stopIberia
21h 35mORD-LIS
5/14Wed
multi-stopIberia
18h 15mLIS-ORD
$652
5/1Thu
multi-stopAmerican Airlines
13h 20mORD-LIS
5/14Wed
multi-stopAmerican Airlines
13h 40mLIS-ORD
$669
5/4Sun
multi-stopDelta
17h 51mMDW-LIS
5/13Tue
multi-stopDelta
19h 45mLIS-MDW
$669
5/4Sun
multi-stopDelta
16h 15mORD-LIS
5/13Tue
multi-stopDelta
17h 30mLIS-ORD
$670
5/2Fri
multi-stopAir Canada
17h 25mORD-LIS
5/9Fri
multi-stopAir Canada
18h 42mLIS-ORD
$681
5/2Fri
multi-stopAmerican Airlines
11h 14mORD-LIS
5/9Fri
multi-stopAmerican Airlines
13h 40mLIS-ORD
$695
5/2Fri
multi-stopSWISS
18h 25mORD-LIS
5/9Fri
multi-stopSWISS
16h 00mLIS-ORD
$700
5/2Fri
multi-stopSWISS
27h 00mORD-LIS
5/9Fri
multi-stopSWISS
16h 00mLIS-ORD
$702
5/1Thu
multi-stopAir Canada
15h 25mORD-LIS
5/8Thu
multi-stopAir Canada
12h 57mLIS-ORD
$723

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Everything you need to know for your flight to Portugal

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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