HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from O'Hare Intl (ORD) to Porto (OPO) from $270

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ORD — OPO
jun. 4 — jun. 111
From?
To?
mar. 6/4
mar. 6/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Chicago O'Hare Intl to Porto are usually found in January or February, booked 57 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Porto

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mayo 30, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$523

One-way from

$309
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 26% potential price drop
Search Deals
From Chicago O'Hare Intl to Porto
Search Deals
One-way flight from Chicago O'Hare Intl to Porto
Search Deals

What is the cheapest day to fly round-trip from Chicago O'Hare Intl Airport to Porto?

Sunday flights are generally found to be more expensive for flights from Chicago O'Hare Intl Airport to Porto. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Porto.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Porto?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, November can be a great choice for travel to Porto. Flights to Porto from Chicago O'Hare Intl Airport in November are about $660 on average during November, but can be found for as low as $478.

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

It’s typically best to fly out from Chicago O'Hare Intl Airport to Porto in the afternoon. Doing so could potentially save you 28% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Lufthansa flights from O'Hare Intl to Porto

Explore cheap flight options specifically provided by Lufthansa for the route between O'Hare Intl and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Peruse some of the lowest-priced Lufthansa flights we've found from Chicago to Porto. Make sure to check back often as deals are often changing.
mié. 11/69:25 pmORD - OPO
1 stop20h 10mLufthansa
jue. 11/146:00 amOPO - ORD
1 stop20h 05mLufthansa
Deal found 5/30$509
mié. 11/209:25 pmORD - OPO
1 stop20h 10mLufthansa
dom. 11/246:00 amOPO - ORD
1 stop20h 05mLufthansa
Deal found 5/28$554
sáb. 11/239:15 pmORD - OPO
2 stops36h 10mLufthansa
dom. 12/14:20 pmOPO - ORD
1 stop33h 45mLufthansa
Deal found 5/30$638
dom. 11/243:55 pmORD - OPO
1 stop17h 30mLufthansa
sáb. 11/304:15 pmOPO - ORD
1 stop33h 50mLufthansa
Deal found 5/29$651
dom. 6/93:35 pmORD - OPO
1 stop12h 50mLufthansa
sáb. 7/136:00 amOPO - ORD
2 stops18h 30mLufthansa
Deal found 5/28$2,097

Cheap Air Canada flights from O'Hare Intl to Porto

Explore cheap flight options specifically provided by Air Canada for the route between O'Hare Intl and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Take a gander at the lowest prices we've found on Air Canada flights from Chicago to Porto. Make sure to examine the flight information before completing your reservation.
mié. 11/64:52 pmORD - OPO
2 stops16h 33mAir Canada
jue. 11/146:00 amOPO - ORD
2 stops22h 07mAir Canada
Deal found 5/30$511
mié. 11/204:35 pmORD - OPO
2 stops16h 50mAir Canada
dom. 11/246:00 amOPO - ORD
2 stops22h 07mAir Canada
Deal found 5/28$555
sáb. 10/198:35 amORD - OPO
2 stops20h 55mAir Canada
sáb. 10/268:40 amOPO - ORD
2 stops18h 03mAir Canada
Deal found 5/29$675
vie. 6/74:00 pmORD - OPO
2 stops17h 55mAir Canada
jue. 7/116:00 amOPO - ORD
2 stops34h 01mAir Canada
Deal found 5/30$859
dom. 6/92:15 pmORD - OPO
2 stops15h 50mAir Canada
mar. 7/1611:05 amOPO - ORD
2 stops16h 57mAir Canada
Deal found 5/28$1,224
vie. 6/74:00 pmORD - OPO
2 stops17h 55mAir Canada
vie. 6/283:05 amOPO - ORD
2 stops21h 22mAir Canada
Deal found 5/30$1,230
vie. 6/74:00 pmORD - OPO
2 stops17h 55mAir Canada
sáb. 6/296:00 amOPO - ORD
2 stops20h 44mAir Canada
Deal found 5/30$1,256
dom. 6/92:15 pmORD - OPO
2 stops15h 50mAir Canada
vie. 7/123:05 amOPO - ORD
2 stops23h 06mAir Canada
Deal found 5/28$1,366
dom. 6/92:15 pmORD - OPO
2 stops15h 50mAir Canada
sáb. 7/136:00 amOPO - ORD
2 stops20h 11mAir Canada
Deal found 5/28$1,392

Cheap O'Hare Intl to Porto flights in May & June 2024

Find cheap flight options from O'Hare Intl to Porto specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on mayo 30, 2024.
Listed are some of the best fares we've found on flights departing from Chicago to Porto in 2024. Check back regularly for other flight deals.
mié. 6/266:00 pmORD - OPO
1 stop24h 30mTAP AIR PORTUGAL
mié. 7/310:55 pmOPO - ORD
1 stop23h 15mTAP AIR PORTUGAL
Deal found 5/29$708
lun. 6/102:25 pmORD - OPO
1 stop10h 30mUnited Airlines
mar. 6/2512:35 pmOPO - ORD
1 stop13h 35mUnited Airlines
Deal found 5/30$709
lun. 6/104:35 pmORD - OPO
1 stop13h 10mIberia
mar. 6/258:15 amOPO - ORD
1 stop12h 05mIberia
Deal found 5/29$710
dom. 6/27:15 pmORD - OPO
1 stop34h 05mSWISS
lun. 6/177:15 pmOPO - ORD
1 stop26h 40mSWISS
Deal found 5/30$713
lun. 6/101:12 pmORD - OPO
1 stop11h 43mUnited Airlines
mar. 6/259:00 amOPO - ORD
2 stops16h 17mUnited Airlines
Deal found 5/30$714
dom. 6/27:15 pmORD - OPO
1 stop34h 05mSWISS
lun. 6/1712:55 pmOPO - ORD
1 stop33h 00mSWISS
Deal found 5/29$715
dom. 6/27:15 pmORD - OPO
1 stop30h 40mSWISS
lun. 6/177:15 pmOPO - ORD
1 stop26h 40mSWISS
Deal found 5/30$716
mar. 6/114:35 pmORD - OPO
1 stop21h 20mIberia
mar. 7/168:35 pmOPO - ORD
1 stop23h 45mIberia
Deal found 5/28$720
mar. 6/411:32 amORD - OPO
2 stops14h 03mAmerican Airlines
mar. 6/1112:25 pmOPO - ORD
2 stops26h 18mAmerican Airlines
Deal found 5/29$727

O'Hare Intl to Porto 2024 flight deals

Discover exclusive flight deals for travel between O'Hare Intl and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Listed are some of the best fares we've found on flights departing from Chicago to Porto in 2024. Check back regularly for other flight deals.
vie. 11/19:25 pmORD - OPO
1 stop14h 35mTAP AIR PORTUGAL
dom. 11/105:00 amOPO - ORD
1 stop16h 30mTAP AIR PORTUGAL
Deal found 5/30$475
dom. 11/38:25 pmORD - OPO
1 stop14h 35mTAP AIR PORTUGAL
dom. 11/106:55 amOPO - ORD
1 stop14h 35mTAP AIR PORTUGAL
Deal found 5/30$499
lun. 10/216:00 pmORD - OPO
1 stop10h 55mTAP AIR PORTUGAL
mié. 10/306:50 amOPO - ORD
1 stop14h 40mTAP AIR PORTUGAL
Deal found 5/30$504
dom. 11/109:45 pmORD - OPO
2 stops16h 15mMultiple Airlines
mar. 11/198:40 pmOPO - ORD
1 stop23h 45mMultiple Airlines
Deal found 5/28$508
mié. 11/69:25 pmORD - OPO
1 stop20h 10mLufthansa
jue. 11/146:00 amOPO - ORD
1 stop20h 05mLufthansa
Deal found 5/30$509
mié. 11/64:40 pmORD - OPO
1 stop21h 20mIberia
mié. 12/118:40 pmOPO - ORD
1 stop23h 45mIberia
Deal found 5/29$510
mié. 11/64:52 pmORD - OPO
2 stops16h 33mAir Canada
jue. 11/146:00 amOPO - ORD
2 stops22h 07mAir Canada
Deal found 5/30$511
mié. 11/64:40 pmORD - OPO
1 stop17h 20mAmerican Airlines
mié. 12/1112:25 pmOPO - ORD
2 stops28h 45mAmerican Airlines
Deal found 5/29$515
dom. 11/38:25 pmORD - OPO
1 stop10h 35mTAP AIR PORTUGAL
mié. 11/206:50 amOPO - ORD
1 stop14h 40mTAP AIR PORTUGAL
Deal found 5/29$522

O'Hare Intl to Porto flights leaving soon

Find last-minute flight options from O'Hare Intl to Porto for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Users seeking a last-minute flight from Chicago to Porto should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
dom. 6/94:35 pmORD - OPO
1 stop17h 20mIberia
mié. 7/178:15 amOPO - ORD
1 stop12h 05mIberia
Deal found 5/28$710
mar. 6/411:32 amORD - OPO
2 stops14h 03mAmerican Airlines
mar. 6/1112:25 pmOPO - ORD
2 stops26h 18mAmerican Airlines
Deal found 5/29$727
jue. 6/61:12 pmORD - OPO
1 stop11h 43mUnited Airlines
jue. 6/1312:35 pmOPO - ORD
1 stop13h 35mUnited Airlines
Deal found 5/30$759
jue. 6/64:35 pmORD - OPO
1 stop13h 10mIberia
jue. 6/138:15 amOPO - ORD
1 stop12h 05mIberia
Deal found 5/29$760
jue. 6/69:30 amORD - OPO
2 stops15h 25mUnited Airlines
jue. 6/139:00 amOPO - ORD
2 stops17h 17mUnited Airlines
Deal found 5/30$764
dom. 6/94:35 pmORD - OPO
1 stop17h 20mIberia
jue. 7/188:15 amOPO - ORD
1 stop12h 05mIberia
Deal found 5/28$773
jue. 6/611:25 amORD - OPO
2 stops14h 10mAmerican Airlines
jue. 6/138:15 amOPO - ORD
2 stops19h 13mAmerican Airlines
Deal found 5/29$776
sáb. 6/84:35 pmORD - OPO
1 stop13h 05mIberia
jue. 7/188:15 amOPO - ORD
1 stop12h 05mIberia
Deal found 5/28$823
vie. 6/75:15 pmORD - OPO
1 stop16h 15mDelta
sáb. 6/225:00 amOPO - ORD
1 stop15h 15mDelta
Deal found 5/29$826

One-way flights to Porto from O'Hare Intl

Search for one-way flight options from O'Hare Intl to Porto. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Users traveling one-way from Chicago to Porto can select one of these great deals. Those seeking round-trip flights from Chicago to Porto should utilize the search form at the the top of the page.
mar. 9/107:27 amORD - OPO
3 stops29h 18mMultiple Airlines
Deal found 5/29$270
mié. 9/115:19 pmORD - OPO
3 stops23h 21mMultiple Airlines
Deal found 5/29$272
mié. 9/115:19 pmORD - OPO
2 stops36h 51mMultiple Airlines
Deal found 5/29$280
mar. 9/1010:36 amORD - OPO
2 stops30h 19mMultiple Airlines
Deal found 5/29$296
vie. 10/45:19 pmORD - OPO
2 stops23h 06mMultiple Airlines
Deal found 5/28$305
jue. 10/35:19 pmORD - OPO
2 stops18h 31mMultiple Airlines
Deal found 5/28$307
mar. 9/109:04 pmORD - OPO
1 stop20h 21mMultiple Airlines
Deal found 5/29$309
mar. 7/211:24 amORD - OPO
2 stops29h 01mMultiple Airlines
Deal found 5/29$329
mié. 9/1810:33 amORD - OPO
3 stops26h 27mMultiple Airlines
Deal found 5/28$336

Find flights from O'Hare Intl to Porto within your budget

Customize your flight search to find flights from O'Hare Intl 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 2,784,634 searches. Data last updated mayo 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$508 - $611

Route

Depart

Return

Price

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

dom. 11/10

2 stops16h 15m

Porto

mar. 11/19

1 stop23h 45m

$508

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 11/6

1 stop20h 10m

Porto

jue. 11/14

1 stop20h 05m

$509

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 11/6

1 stop21h 20m

Porto

mié. 12/11

1 stop23h 45m

$510

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 11/6

2 stops16h 33m

Porto

jue. 11/14

2 stops22h 07m

$511

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 11/6

1 stop17h 20m

Porto

mié. 12/11

2 stops28h 45m

$515

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

dom. 11/3

1 stop10h 35m

Porto

mié. 11/20

1 stop14h 40m

$522

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

vie. 11/1

1 stop20h 50m

Porto

dom. 11/10

1 stop15h 30m

$529

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 11/6

2 stops18h 15m

Porto

mié. 12/11

2 stops22h 00m

$530

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

sáb. 11/23

2 stops36h 11m

Porto

dom. 12/1

2 stops49h 26m

$611

Flights are sorted by cheapest first

Deals found on 5/28

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Porto?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Porto. Price data was last updated on May 24, 2024.
The best time to book flights from Chicago O'Hare Intl Airport to Porto is 57 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Porto?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Porto. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Porto flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from O'Hare Intl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from O'Hare Intl 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.

Temperature and rainfall in Porto by month

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

OPO

Temperature

48.2 - 68 °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 mayo 30, 2024.
To help decide which airline to fly from Chicago to Porto, see what other customers have to say about Lufthansa, Air Canada and KLM. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,520 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,954 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,284 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 Chicago O'Hare Intl?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Porto. 9 airlines have flights to Porto from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Porto should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

  • Can I find flights from Chicago O'Hare Intl Airport to Porto for under $600 on Cheapflights?

    Yes, there are multiple flights from Chicago O'Hare Intl Airport to Porto for under $600. The cheapest flight booked recently is on Multiple Airlines for just $508, but on average you can expect to pay $547.

  • Are there last-minute flights available from Chicago O'Hare Intl Airport to Porto for under $800?

    There are currently 20+ open flights from Chicago O'Hare Intl Airport to Porto within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Porto round-trip?

    Currently priced at $509, Lufthansa will fly you from Chicago O'Hare Intl Airport to Porto and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Iberia and Air Canada - these airlines can fly you to your destination from $510 and $511, respectively. Users have found that Lufthansa is 24% cheaper than the other options available to this destination.

  • What does ORD to OPO mean?

    ORD stands for Chicago O'Hare Intl Airport, while OPO stands for Porto Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from O'Hare Intl to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your O'Hare Intl 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 O'Hare Intl to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter O'Hare Intl 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 O'Hare Intl to Porto that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Porto?

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

  • Can I find deals for business class flights from O'Hare Intl to Porto?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 O'Hare Intl to Porto that allow pets onboard?

    Many airlines flying from O'Hare Intl 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 O'Hare Intl to Porto?

    Yes, you can often find last-minute deals on O'Hare Intl 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 Chicago O'Hare Intl Airport to Porto flight deals updated?

    The Chicago O'Hare Intl Airport to Porto flight deals you see on this page were last updated on 5/30.

  • What are the most popular airlines that fly from Chicago O'Hare Intl Airport to Porto?

    Consider American Airlines, British Airways or Delta when booking your flight. These represent the most popular airlines when flying from Chicago O'Hare Intl Airport to Porto.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Porto?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Porto (average of $523). Flying from Chicago O'Hare Intl Airport to Porto in June is currently the most expensive (average of $994). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to Porto
See prices for flight routes from nearby airports that may be better suited for you.

O'Hare Intl to Lisbon flights
Midway to Lisbon flights
O'Hare Intl to Ponta Delgada flights
Midway to Porto flights
O'Hare Intl to Funchal flights
O'Hare Intl to Faro flights
Midway to Ponta Delgada flights
O'Hare Intl to Lajes flights
Midway to Faro flights

Top 9 airlines flying from O'Hare Intl to Porto

Discover the top 9 airlines that operate flights from O'Hare Intl 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 2,784,634 searches. Data last updated mayo 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$474Average$852FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IberiaCheapest$484Average$598FlexibilityNo cancel feeOn-time77%
Search Iberia flights
KLMCheapest$520Average$813FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest$520Average$810FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest$523Average$717FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest$532Average$798FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
SWISSCheapest$589Average$1,093FlexibilityNo cancel feeOn-time79%
Search SWISS flights
United AirlinesCheapest$619Average$1,047FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$634Average$1,234FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Newark Airport to Nashville flights
El Paso to Las Vegas flights
San Francisco to Vancouver flights
Los Angeles to Las Vegas flights
Jamaica to The Bahamas flights
Denver to Kansas City flights
Tampa to Orlando flights
New York to New Orleans flights
Portland to Los Angeles flights
Philadelphia to Las Vegas flights
Washington, D.C. to Orlando flights
Chicago O'Hare Intl Airport to Norfolk flights

Search flights from O'Hare Intl to Porto by cabin class

Find flights from O'Hare Intl to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from O'Hare Intl to Porto?

Deals for O'Hare Intl to Porto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Porto?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from O'Hare Intl to Porto.

Can Cheapflights find flights from O'Hare Intl to Porto with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from O'Hare Intl to Porto, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Porto become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines