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$399+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
IND — OPO
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap 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 December 16, 2025.

This Mytrip deal was found by Cheapflights users on 12/15. 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.
Mon 12/228:00 pmIND - OPO
2 stops19h 45mMultiple Airlines
Mon 12/2910:10 amOPO - IND
2 stops26h 03mMultiple Airlines
Deal found 12/15$1,678

Find 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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$492
(Air France)

One-way from

$399
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$1,442
Provider with most accurate pricing for Indianapolis-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Porto flights.
Search Deals
From Indianapolis to Porto
Search Deals
One-way flight from Indianapolis to Porto
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 16, 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

Thu 1/29

12:27 pm-10:25 am

2 stops16h 58m

Porto

Thu 2/5

5:00 am-9:16 pm

2 stops21h 16m

$492

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 3/18

12:17 pm-10:30 am

2 stops18h 13m

Porto

Thu 3/26

11:20 am-11:59 pm

2 stops16h 39m

$505

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Fri 1/23

2:00 pm-11:40 am

2 stops16h 40m

Porto

Tue 1/27

6:00 am-6:55 pm

2 stops17h 55m

$506

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Thu 1/29

12:25 pm-11:40 am

2 stops18h 15m

Porto

Thu 2/5

6:00 am-10:14 pm

2 stops21h 14m

$606

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sun 1/11

12:27 pm-10:30 am

2 stops17h 03m

Porto

Fri 1/23

5:00 am-5:30 pm

2 stops17h 30m

$693

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 3/18

12:04 pm-9:30 am

1 stop17h 26m

Porto

Thu 3/26

6:00 am-11:26 pm

2 stops21h 26m

$701

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 3/17

3:47 pm-9:30 am

2 stops13h 43m

$399

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 1/28

2:00 pm-1:15 pm

2 stops18h 15m

$405

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 3/17

12:04 pm-9:30 am

1 stop17h 26m

$418

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Fri 5/15

7:50 pm-6:50 am

2 stops30h 00m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 12 results
1
2

Compare providers for flights from Indianapolis to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Indianapolis to Porto in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Indianapolis-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Indianapolis-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Indianapolis-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Indianapolis-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Indianapolis-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $505). Flying from Indianapolis to Porto in December is currently the most expensive (average of $1,442). 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 December 16, 2025.

It’s optimal to fly from Indianapolis to Porto in the evening. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the afternoon.

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 December 16, 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
9,095 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 KLM and United Airlines fly from Indianapolis to Porto in about 16h 40m. The time it takes to get you to your destination can typically vary by up to 1h 33m. There are 3932 mi between Indianapolis and Porto. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $505). Flying from Indianapolis to Porto in December is currently the most expensive (average of $1,442). 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
Vila Nova de Gaia

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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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$664Average$1,121FlexibilityNo cancel feeOn-time69%

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