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$401+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
IND — OPO
May 31 — Jun 71
Sun 5/31
Sun 6/7
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 May 1, 2026.

This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:31 pm
IND
-
OPO
2 stops14h 09m
American Airlines
Tue 10/138:20 am
OPO
-
IND
2 stops17h 33m
American Airlines
Deal found 4/29$909
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 10/88:55 am
IND
-
OPO
1 stop19h 50m
United Airlines
Tue 10/1312:15 pm
OPO
-
IND
2 stops40h 39m
United Airlines
Deal found 4/29$945
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:00 pm
IND
-
OPO
1 stop12h 30m
Multiple Airlines
Tue 10/131:05 pm
OPO
-
IND
1 stop32h 09m
Multiple Airlines
Deal found 4/29$972
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Thu 9/37:05 am
IND
-
OPO
1 stop18h 50m
United Airlines
Tue 9/812:15 pm
OPO
-
IND
2 stops30h 52m
United Airlines
Deal found 4/30$995
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 8/297:40 pm
IND
-
OPO
2 stops30h 15m
United Airlines
Sun 9/69:00 am
OPO
-
IND
1 stop15h 49m
United Airlines
Deal found 4/29$1,009
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Thu 4/308:03 pm
IND
-
OPO
2 stops21h 52m
Multiple Airlines
Mon 5/47:20 pm
OPO
-
IND
2 stops30h 19m
Multiple Airlines
Deal found 4/28$1,010
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/55:15 pm
IND
-
OPO
1 stop12h 10m
Delta
Sun 7/126:30 am
OPO
-
IND
2 stops23h 11m
Delta
Deal found 4/29$1,015
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:20 pm
IND
-
OPO
2 stops20h 35m
Multiple Airlines
Tue 9/812:15 pm
OPO
-
IND
2 stops29h 27m
Multiple Airlines
Deal found 4/30$1,018
This KLM deal was found by Cheapflights users on 4/26. 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.
Tue 7/712:52 pm
IND
-
OPO
1 stop16h 38m
KLM
Tue 7/145:00 am
OPO
-
IND
2 stops17h 18m
KLM
Deal found 4/26$1,022
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 7/118:10 pm
IND
-
OPO
2 stops29h 40m
United Airlines
Sat 7/259:00 am
OPO
-
IND
2 stops30h 13m
United Airlines
Deal found 4/29$1,023

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 May 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$909
(American Airlines)

One-way from

$401
(American Airlines)

Popular in

May

Cheapest in

January

Average price

$1,876
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
Highest demand for flights based on searches. 12% potential increase in price ($169 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 1, 2026.
Use the filters below to find and compare flights from Indianapolis to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sat 8/29

7:40 pm-6:55 am

2 stops30h 15m

Porto

Sun 9/6

9:00 am-7:49 pm

1 stop15h 49m

$1,009

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sun 7/5

5:15 pm-3:30 pm

2 stops17h 15m

Porto

Sun 7/12

6:30 am-11:35 pm

2 stops22h 05m

$1,020

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sat 7/11

8:10 pm-6:50 am

2 stops29h 40m

Porto

Sat 7/25

9:00 am-10:13 am

2 stops30h 13m

$1,023

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 7/7

12:52 pm-10:30 am

1 stop16h 38m

Porto

Tue 7/14

12:25 pm-9:18 pm

1 stop13h 53m

$1,030

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sat 7/11

12:14 pm-10:20 am

1 stop17h 06m

Porto

Sat 7/25

12:55 pm-9:05 pm

1 stop13h 10m

$1,075

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sat 7/11

3:50 pm-9:45 am

1 stop12h 55m

Porto

Sat 7/25

9:00 am-10:15 pm

1 stop18h 15m

$1,209
Quickest round-trip

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Thu 9/3

12:55 pm-6:55 am

1 stop13h 00m

Porto

Tue 9/8

9:00 am-6:00 pm

1 stop14h 00m

$1,214
Cheapest one-way

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Mon 9/21

7:50 pm-9:55 pm

3 stops21h 05m

$406

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sun 9/20

10:20 am-3:30 pm

3 stops24h 10m

$474

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 5/27

8:36 pm-7:25 am

3 stops53h 49m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 17 resultsSorted by cheapest first
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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Indianapolis-Porto flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $490). Flying from Indianapolis to Porto in May is currently the most expensive (average of $1,876). 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.

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 May 1, 2026.
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
9,675 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,675 reviews
United Airlines
7.4
Good
9,675 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 and KLM fly from Indianapolis to Porto in about 16h 38m. The time it takes to get you to your destination can typically vary by up to 3h 12m. 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 $717, was found to be the cheapest airline from Indianapolis to Porto.. This flight start at 41% 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 $490). Flying from Indianapolis to Porto in May is currently the most expensive (average of $1,876). 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
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

Browse thousands of different options on Cheapflights for your next trip

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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 May 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$717Average$1,121FlexibilityNo cancel feeOn-time69%

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