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$237+ Cheap flights from Indiana 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
IND — OPO
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheap flight deals from Indiana to Porto

Keep the following information in mind while searching for Indiana to Porto flight deals. Data was last updated August 1, 2025.

Round-trip from

$594
(United Airlines)

One-way from

$237
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$894
From Indiana to Porto
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One-way flight from Indiana to Porto
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Highest demand for flights based on searches. 21% potential increase in price ($284 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($70 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Indiana to Porto

Cheapest flights from Indiana to Porto
Explore the most affordable flight options available from Indiana to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:27 amDAY - OPO
2 stops18h 03mUnited Airlines
Tue 12/26:00 amOPO - DAY
2 stops18h 17mUnited Airlines
Deal found 7/30$594
This Ovago deal was found by Cheapflights users on 7/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:20 pmCVG - OPO
2 stops20h 20mBritish Airways
Mon 11/178:40 pmOPO - CVG
2 stops28h 31mBritish Airways
Deal found 7/31$600
This Iberia deal was found by Cheapflights users on 7/30. 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.
Wed 10/810:11 amORD - OPO
2 stops15h 24mIberia
Thu 10/238:35 pmOPO - ORD
2 stops22h 55mIberia
Deal found 7/30$605
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:40 amORD - OPO
3 stops26h 20mMultiple Airlines
Tue 9/910:50 pmOPO - ORD
2 stops24h 43mMultiple Airlines
Deal found 7/31$608
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:20 pmCVG - OPO
1 stop10h 10mUnited Airlines
Mon 11/1712:30 pmOPO - CVG
2 stops40h 29mUnited Airlines
Deal found 7/31$608
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 11/29:20 amORD - OPO
2 stops16h 20mAmerican Airlines
Sat 11/88:20 amOPO - ORD
2 stops17h 16mAmerican Airlines
Deal found 7/30$612
This Lufthansa deal was found by Cheapflights users on 7/30. 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.
Sun 10/53:35 pmORD - OPO
1 stop12h 45mLufthansa
Thu 10/236:15 amOPO - ORD
2 stops19h 40mLufthansa
Deal found 7/30$615
This Expedia deal was found by Cheapflights users on 8/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2112:50 pmORD - OPO
2 stops17h 00mAir Canada
Thu 11/276:00 amOPO - ORD
2 stops21h 52mAir Canada
Deal found 8/1$617
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/174:00 pmORD - OPO
1 stop17h 45mUnited Airlines
Tue 10/2812:35 pmOPO - ORD
2 stops24h 06mUnited Airlines
Deal found 7/31$618
This Delta deal was found by Cheapflights users on 7/30. 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.
Mon 10/136:23 pmMDW - OPO
2 stops17h 32mDelta
Tue 10/216:15 amOPO - MDW
2 stops18h 10mDelta
Deal found 7/30$622
This Delta deal was found by Cheapflights users on 8/1. 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.
Tue 9/302:05 pmORD - OPO
2 stops19h 25mDelta
Tue 10/76:15 amOPO - ORD
1 stop13h 55mDelta
Deal found 8/1$630
This SWISS deal was found by Cheapflights users on 7/30. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:05 pmORD - OPO
1 stop30h 50mSWISS
Mon 10/208:10 amOPO - ORD
2 stops37h 45mSWISS
Deal found 7/30$631

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indiana 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 2,558,603 searches. Data last updated August 1, 2025.
Use the filters below to find and compare flights from Indiana to Porto that are best for you.

Fly from

Indiana

Fly to

Porto

Route

Depart

Return

Price

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Sun 11/23

10:27 am-9:30 am

2 stops18h 03m

Porto

Tue 12/2

6:00 am-7:17 pm

2 stops18h 17m

$594

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 11/10

3:20 pm-4:40 pm

2 stops20h 20m

Porto

Mon 11/17

8:40 pm-8:11 pm

2 stops28h 31m

$600

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 10/8

10:11 am-7:35 am

2 stops15h 24m

Porto

Thu 10/23

8:35 pm-1:30 pm

2 stops22h 55m

$605

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 9/2

10:40 am-7:00 pm

3 stops26h 20m

Porto

Tue 9/9

10:50 pm-5:33 pm

2 stops24h 43m

$608

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 11/10

6:20 pm-9:30 am

1 stop10h 10m

Porto

Mon 11/17

12:30 pm-11:59 pm

2 stops40h 29m

$608

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sat 1/17

12:50 pm-12:50 pm

2 stops18h 00m

Porto

Sat 1/24

6:00 am-9:13 am

2 stops33h 13m

$609

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 1/1

4:20 pm-11:40 am

1 stop13h 20m

Porto

Thu 1/8

6:00 am-6:47 pm

2 stops18h 47m

$612

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 10/5

3:35 pm-10:20 am

1 stop12h 45m

Porto

Thu 10/23

6:15 am-7:55 pm

2 stops19h 40m

$615

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Mon 10/13

6:23 pm-5:55 pm

2 stops17h 32m

Porto

Tue 10/21

6:15 am-6:25 pm

2 stops18h 10m

$622

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 9/30

2:05 pm-3:30 pm

2 stops19h 25m

Porto

Tue 10/7

6:15 am-2:10 pm

1 stop13h 55m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 49 results
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Best time to book a flight from Indiana to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Indiana 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.

Cheapflights Insights

Everything you need to know about your flight from Indiana to Porto

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

Currently, January is the cheapest month in which you can book a flight from Indiana to Porto (average of $523). Flying from Indiana to Porto in June is currently the most expensive (average of $1,033). 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 IN to OPO?

Find hourly flight availability from Indiana 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 August 1, 2025.

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

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 August 1, 2025.
Get a feel of what it's like to fly with Delta, Porter Airlines, and KLM from Indiana to Porto by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Porter Airlines
8.0
Very good
318 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,384 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Indiana 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 Indiana?

    Most people fly into Porto (OPO) if they book a flight to Porto from Indiana. Porto is conveniently located just 6.8 mi from Porto’s city center.

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

    $263 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $360 and $361, respectively.

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

    When deciding which route to take from Indiana to Porto consider Chicago O'Hare Intl - Porto, Chicago Midway - Porto or Cincinnati Cinci./N. Kentucky - Porto as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Indiana 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.

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

    Currently, January is the cheapest month in which you can book a flight from Indiana to Porto (average of $523). Flying from Indiana to Porto in June is currently the most expensive (average of $1,033). 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

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Coimbra

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Alternative routes for Indiana to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Indiana to Porto

Discover the top airline that operate flights from Indiana 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 2,558,603 searches. Data last updated August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$664Average$1,217FlexibilityNo cancel feeOn-time69%

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