$237 Find Cheap Flights from Illinois to Portugal

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Good to know

Low season

January

High season

July

Cheapest flight

$237
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 24% 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.

  • How many airports are there in Portugal?

    There are 14 airports in Portugal. The busiest airport is Lisbon Portela Airport (LIS), with 66% of all flights arriving there.

  • 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 $420.

  • 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 $475 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 $475.

  • 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 $1,125 and $956 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 7 weeks before departure.

  • How many cities have direct flights to Portugal?

    From Illinois, there are direct flights to Portugal from 1 city. This city is Chicago and there are 8 direct flights each week.

  • How many direct flights to Portugal are there each day?

    There are around 2 direct flights from within Illinois to Portugal every day. All flights depart in the evening.

  • How many direct flights to Portugal are there each week?

    Each week there are around 8 direct flights from within Illinois to Portugal. The most common day for departures is Wednesday, with 25% of flights taking off on this day.

  • How long is the flight to Portugal?

    An average nonstop flight from Illinois to Portugal takes 17h 11m, 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.

  • How many long-haul flights are there to Portugal each week?

    There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Portugal. Instead, there are 8 long-haul flights (6-12 hour flight duration), with the most arriving from Chicago.

  • What are the most popular destinations in Portugal?

    Based on KAYAK flight searches, the most popular destination is Lisbon (80% of total searches to Portugal). The next most popular destinations are Porto (12%) and Funchal (3%). Searches for flights to Faro (3%), to Ponta Delgada (2%) and to Horta (0%) are also popular.

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Book cheap flights from Illinois to Portugal

Recent round-trip flight deals

5/6Tue
1 stopSWISS
22h 45mORD-LIS
5/13Tue
1 stopSWISS
27h 45mLIS-ORD
$237
5/5Mon
1 stopSWISS
31h 20mORD-OPO
5/12Mon
1 stopSWISS
29h 20mOPO-ORD
$529
4/13Sun
1 stopTAP AIR PORTUGAL
10h 55mORD-OPO
4/29Tue
1 stopTAP AIR PORTUGAL
23h 40mOPO-ORD
$540
4/14Mon
1 stopScandinavian Airlines
31h 35mORD-FAO
4/30Wed
1 stopScandinavian Airlines
36h 30mFAO-ORD
$548
4/13Sun
1 stopTAP AIR PORTUGAL
31h 50mORD-OPO
4/29Tue
1 stopTAP AIR PORTUGAL
30h 10mOPO-ORD
$551
5/6Tue
1 stopAer Lingus
18h 20mORD-LIS
5/13Tue
1 stopAer Lingus
21h 45mLIS-ORD
$566
9/3Wed
1 stopIberia
13h 10mORD-OPO
9/9Tue
1 stopIberia
12h 00mOPO-ORD
$586
8/31Sun
2 stopsScandinavian Airlines
22h 10mORD-OPO
9/10Wed
1 stopScandinavian Airlines
34h 20mOPO-ORD
$615
4/27Sun
1 stopIberia
13h 10mORD-OPO
5/9Fri
1 stopIberia
12h 00mOPO-ORD
$622
5/12Mon
1 stopAer Lingus
18h 20mORD-LIS
5/14Wed
1 stopAer Lingus
21h 45mLIS-ORD
$636

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Recent one-way flight deals

7/21Mon
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
$269
7/9Wed
1 stop
28h 15mORD-LIS
$279
7/28Mon
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
$280
9/22Mon
1 stopScandinavian Airlines
33h 45mORD-OPO
$376
9/7Sun
1 stopScandinavian Airlines
19h 25mORD-LIS
$381
5/15Thu
1 stopAer Lingus
18h 50mORD-FAO
$382
7/9Wed
1 stopIcelandair
19h 55mORD-LIS
$416
9/3Wed
1 stopIcelandair
17h 05mORD-LIS
$441
5/19Mon
1 stopUnited Airlines
13h 50mORD-FAO
$441
4/16Wed
1 stopUnited Airlines
10h 31mORD-LIS
$506

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Last minute flights from Illinois to Portugal

Last minute flight, train and bus deals

4/1Tue
multi-stopUnited Airlines
19h 45mORD-LIS
4/8Tue
multi-stopUnited Airlines
42h 04mLIS-ORD
$519
4/1Tue
multi-stopUnited Airlines
17h 35mORD-LIS
4/8Tue
multi-stopUnited Airlines
35h 19mLIS-ORD
$524
4/1Tue
multi-stopSWISS
22h 45mORD-LIS
4/8Tue
multi-stopSWISS
27h 45mLIS-ORD
$526
4/1Tue
multi-stopSWISS
14h 10mORD-LIS
4/7Mon
multi-stopSWISS
26h 35mLIS-ORD
$531
4/1Tue
multi-stopUnited Airlines
12h 15mORD-LIS
4/8Tue
multi-stopUnited Airlines
14h 35mLIS-ORD
$532
4/1Tue
multi-stopAir Canada
15h 30mORD-LIS
4/8Tue
multi-stopAir Canada
16h 41mLIS-ORD
$557
4/1Tue
multi-stopAir Canada
15h 20mORD-LIS
4/8Tue
multi-stopAir Canada
16h 41mLIS-ORD
$563
4/1Tue
multi-stopDelta
15h 59mMDW-LIS
4/8Tue
multi-stopDelta
19h 02mLIS-MDW
$564
4/1Tue
multi-stopLufthansa
18h 10mORD-LIS
5/1Thu
multi-stopLufthansa
13h 40mLIS-ORD
$575
4/1Tue
multi-stopDelta
17h 15mORD-LIS
5/1Thu
multi-stopDelta
17h 08mLIS-ORD
$615

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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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