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$292+ Cheap flights from Indianapolis (IND) 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IND — OPO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Indianapolis to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) 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 September 11, 2025.

Round-trip from

$540
(United Airlines)

One-way from

$292
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$1,202
From Indianapolis to Porto
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One-way flight from Indianapolis to Porto
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Highest demand for flights based on searches. 19% potential increase in price ($258 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($67 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Indianapolis to Porto

Cheapest flights from Indianapolis to Porto
Explore the most affordable flight options available from Indianapolis to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/266:35 pmIND - OPO
1 stop9h 55mUnited Airlines
Tue 12/26:00 amOPO - IND
2 stops19h 00mUnited Airlines
Deal found 9/11$540
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 11/2512:38 pmIND - OPO
2 stops15h 52mUnited Airlines
Tue 12/26:00 amOPO - IND
2 stops22h 38mUnited Airlines
Deal found 9/11$544
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 11/2511:25 amIND - OPO
2 stops17h 05mUnited Airlines
Mon 12/112:30 pmOPO - IND
2 stops40h 29mUnited Airlines
Deal found 9/11$564
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/254:30 pmIND - OPO
2 stops37h 45mSWISS
Mon 12/112:05 pmOPO - IND
2 stops38h 54mSWISS
Deal found 9/11$572
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/262:20 pmIND - OPO
2 stops28h 20mLufthansa
Mon 12/14:15 pmOPO - IND
2 stops30h 29mLufthansa
Deal found 9/11$587
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:25 amIND - OPO
2 stops26h 30mScandinavian Airlines
Mon 12/15:35 pmOPO - IND
2 stops32h 28mScandinavian Airlines
Deal found 9/11$617
This Ovago deal was found by Cheapflights users on 9/11. 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.
Tue 11/253:24 pmIND - OPO
1 stop13h 06mLufthansa
Tue 12/26:00 amOPO - IND
2 stops19h 22mLufthansa
Deal found 9/11$628
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 11/86:35 pmIND - OPO
1 stop9h 55mUnited Airlines
Sat 11/156:00 amOPO - IND
2 stops16h 54mUnited Airlines
Deal found 9/10$640
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/266:35 pmIND - OPO
1 stop9h 55mUnited Airlines
Mon 12/16:00 amOPO - IND
2 stops20h 59mUnited Airlines
Deal found 9/11$655
This Delta deal was found by Cheapflights users on 9/11. 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.
Thu 11/278:10 amIND - OPO
2 stops21h 15mDelta
Tue 12/211:10 amOPO - IND
2 stops18h 02mDelta
Deal found 9/11$667
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/245:50 amIND - OPO
2 stops28h 55mUnited Airlines
Fri 10/3112:30 pmOPO - IND
2 stops26h 43mUnited Airlines
Deal found 9/9$672

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indianapolis 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 September 11, 2025.
Use the filters below to find and compare flights from Indianapolis to Porto that are best for you.

Fly from

Indianapolis

Fly to

Porto

Route

Depart

Return

Price

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 11/26

6:35 pm-9:30 am

1 stop9h 55m

Porto

Tue 12/2

6:00 am-8:00 pm

2 stops19h 00m

$540

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 11/25

12:38 pm-9:30 am

2 stops15h 52m

Porto

Tue 12/2

6:00 am-11:38 pm

2 stops22h 38m

$544

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 11/26

4:30 pm-9:30 am

2 stops12h 00m

Porto

Mon 12/1

12:30 pm-8:22 pm

2 stops36h 52m

$564

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 11/25

11:25 am-9:30 am

2 stops17h 05m

Porto

Mon 12/1

12:30 pm-11:59 pm

2 stops40h 29m

$564

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 11/26

2:20 pm-11:40 pm

2 stops28h 20m

Porto

Mon 12/1

4:15 pm-5:44 pm

2 stops30h 29m

$587

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 11/25

3:24 pm-9:30 am

1 stop13h 06m

Porto

Tue 12/2

6:00 am-8:22 pm

2 stops19h 22m

$628

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sat 11/8

6:35 pm-9:30 am

1 stop9h 55m

Porto

Sat 11/15

6:00 am-5:54 pm

2 stops16h 54m

$640

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Thu 11/27

8:10 am-10:25 am

2 stops21h 15m

Porto

Tue 12/2

11:10 am-12:12 am

2 stops18h 02m

$667

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sat 11/8

5:10 am-9:50 am

2 stops23h 40m

Porto

Sat 11/15

6:20 am-12:32 am

3 stops23h 12m

$672

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Mon 9/29

5:00 am-10:25 pm

3 stops36h 25m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 16 results
1
2

Best time to book a flight from Indianapolis to Porto

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

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

Currently, January is the cheapest month in which you can book a flight from Indianapolis to Porto (average of $523). Flying from Indianapolis to Porto in June is currently the most expensive (average of $1,027). 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 IND to OPO?

Find hourly flight availability from Indianapolis 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 September 11, 2025.

It’s optimal to fly from Indianapolis to Porto in the evening. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Indianapolis to Porto?

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 September 11, 2025.
Peruse reviews from past customers who have flown with United Airlines from Indianapolis to Porto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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

  • How long is the flight from Indianapolis to Porto?

    Airlines like United Airlines fly from Indianapolis to Porto in about 9h 55m. The time it takes to get you to your destination can typically vary by up to . There are 3932 mi between Indianapolis and Porto.

  • What is the cheapest airline to fly from Indianapolis to Porto round-trip?

    United Airlines, at $664, was found to be the cheapest airline from Indianapolis to Porto.. This flight start at 39% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Indianapolis 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 Indianapolis to Porto?

    Currently, January is the cheapest month in which you can book a flight from Indianapolis to Porto (average of $523). Flying from Indianapolis to Porto in June is currently the most expensive (average of $1,027). 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
Arcos de Valdevez
Coimbra

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Top airline flying from Indianapolis to Porto

Discover the top airline that operate flights from Indianapolis 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$664Average$1,121FlexibilityNo cancel feeOn-time69%

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