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$290+ Cheap flights from Illinois to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OPO
nov. 5 — nov. 121
mar. 11/5
mar. 11/12
1 adult, Economy
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Find flight deals from Illinois to Porto

Cheapest flights from Illinois to Porto
Explore the most affordable flight options available from Illinois to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 31, 2024.

This Ovago deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/47:15 pmORD - OPO
1 stop11h 50mTAP AIR PORTUGAL
mié. 12/118:55 amOPO - ORD
1 stop12h 35mTAP AIR PORTUGAL
Deal found 10/30$450
This Ovago deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/48:09 amORD - OPO
2 stops17h 31mIberia
mié. 12/118:20 amOPO - ORD
1 stop12h 10mIberia
Deal found 10/30$486
This Iberia deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/175:00 pmORD - OPO
1 stop17h 40mMultiple Airlines
mar. 11/268:20 amOPO - ORD
1 stop12h 10mMultiple Airlines
Deal found 10/30$501
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1311:41 amORD - OPO
2 stops13h 59mAmerican Airlines
mié. 11/208:20 amOPO - ORD
1 stop12h 10mAmerican Airlines
Deal found 10/30$508
This SWISS deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/187:05 pmORD - OPO
1 stop34h 10mSWISS
lun. 11/2512:00 pmOPO - ORD
1 stop34h 15mSWISS
Deal found 10/29$511
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/123:15 pmORD - OPO
1 stop14h 25mUnited Airlines
vie. 11/226:00 amOPO - ORD
1 stop13h 25mUnited Airlines
Deal found 10/29$513
This Air Canada deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/44:00 pmORD - OPO
2 stops17h 15mAir Canada
mié. 12/116:00 amOPO - ORD
2 stops22h 07mAir Canada
Deal found 10/30$514
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/137:05 amORD - OPO
2 stops21h 45mDelta
mar. 11/2611:15 amOPO - ORD
1 stop33h 15mDelta
Deal found 10/30$518
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/49:30 amMDW - OPO
2 stops19h 20mDelta
mié. 12/116:00 amOPO - MDW
2 stops18h 32mDelta
Deal found 10/30$528
This Lufthansa deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/143:55 pmORD - OPO
1 stop13h 40mLufthansa
dom. 11/246:00 amOPO - ORD
1 stop13h 25mLufthansa
Deal found 10/30$613
This KLM deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/141:35 pmORD - OPO
2 stops15h 15mKLM
dom. 11/244:10 pmOPO - ORD
1 stop28h 20mKLM
Deal found 10/30$618
This Air France deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/141:30 pmMDW - OPO
2 stops15h 20mMultiple Airlines
sáb. 11/236:00 amOPO - MDW
2 stops18h 32mMultiple Airlines
Deal found 10/31$628

Find flights from Illinois to Porto within your budget

Customize your flight search to find flights from Illinois to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated octubre 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

lun. 12/9

4:19 pm-1:30 pm

2 stops39h 11m

$290

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

dom. 4/20

6:00 pm-10:10 am

1 stop10h 10m

$411

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

jue. 1/2

7:05 pm-3:45 pm

1 stop14h 40m

$446

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

sáb. 12/28

4:45 pm-11:45 am

1 stop13h 00m

$451

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

lun. 12/23

6:20 pm-10:50 am

2 stops34h 30m

$499

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

dom. 4/20

5:59 pm-3:30 pm

2 stops15h 31m

$517

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

jue. 4/17

5:15 pm-3:30 pm

1 stop16h 15m

$572

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

vie. 12/13

3:45 pm-3:15 pm

1 stop17h 30m

$644

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

jue. 1/2

5:52 pm-11:50 am

2 stops35h 58m

$391

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

mié. 4/2

12:15 pm-1:30 pm

3 stops19h 15m

$446

Flights are sorted by cheapest first

Deals found on 10/31

Showing 1-10 of 35 results
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Best time to book a flight from Illinois to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to Porto

Get recent, data-driven insights about flights from Illinois to Porto including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Porto?

Currently, January is the cheapest month in which you can book a flight from Illinois to Porto (average of $512). Flying from Illinois to Porto in June is currently the most expensive (average of $988). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to OPO?

Find hourly flight availability from Illinois to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 31, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Porto as you normally would.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated octubre 31, 2024.
Read through reviews of airlines operating flights from Illinois to Porto, such as Delta, United Airlines and Air Canada. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,835 reviews
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,352 reviews
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
387 reviews
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,644 reviews
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,531 reviews
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Illinois?

    For a flight from Illinois to Porto, you will be flying into Porto. Porto (OPO) is just 6.8 mi from the center of the city.

  • Can I find flights from Illinois to Porto for under $500 on Cheapflights?

    Yes, there are multiple flights from Illinois to Porto for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $450, but on average you can expect to pay $583.

  • Are there last-minute flights available from Illinois to Porto for under $600?

    There are currently 11+ open flights from Illinois to Porto within the next 7 days for less than $600.

  • What are the cheapest airlines to fly from Illinois to Porto one-way?

    One-way options have recently been found by users for as low as $411 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include SWISS from $446 and Iberia from $451 one-way.

  • What are the most popular routes from Illinois to Porto?

    When deciding which route to take from Illinois to Porto consider Chicago O'Hare Intl - Porto, Chicago Midway - Porto or Lambert-St Louis - Porto as they are the most popular.

  • What does ORD to OPO mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to Porto Airport flight would often be abbreviated as a ORD to OPO flight. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Illinois to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Porto flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Porto flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Illinois to Porto that include hotel bookings?

    Yes. In addition to deals on Illinois to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Porto.

  • Can I find deals for business class flights from Illinois to Porto?

    Yes. Cheapflights offers flight deals from Illinois to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Illinois to Porto that allow pets onboard?

    Many airlines flying from Illinois to Porto offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Porto?

    Yes, you can often find last-minute deals on Illinois to Porto flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to Porto flight deals updated?

    The Illinois to Porto flight deals you see on this page were last updated on 10/30.

  • What is the cheapest month to book a flight from Illinois to Porto?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Porto (average of $512). Flying from Illinois to Porto in June is currently the most expensive (average of $988). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 9 airlines flying from Illinois to Porto

Discover the top 9 airlines that operate flights from Illinois to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated octubre 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$444Average$697FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$468Average$726FlexibilityNo cancel feeOn-time71%
IberiaCheapest$492Average$634FlexibilityNo cancel feeOn-time77%
DeltaCheapest$518Average$814FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$523Average$831FlexibilityNo cancel feeOn-time70%
KLMCheapest$527Average$832FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$531Average$845FlexibilityNo cancel feeOn-time76%
SWISSCheapest$616Average$826FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$626Average$1,095FlexibilityNo cancel feeOn-time69%
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