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$378+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
IND — OPO
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
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 July 7, 2026.

This United Airlines deal was found by Cheapflights users on 7/4. 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 12/298:00 am
IND
-
OPO
1 stop20h 30m
United Airlines
Thu 1/76:00 am
OPO
-
IND
2 stops21h 57m
United Airlines
Deal found 7/4$784
This Delta deal was found by Cheapflights users on 7/4. 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 12/2710:25 am
IND
-
OPO
2 stops19h 10m
Delta
Wed 1/65:00 am
OPO
-
IND
2 stops24h 32m
Delta
Deal found 7/4$787
This United Airlines deal was found by Cheapflights users on 7/4. 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 12/313:00 pm
IND
-
OPO
1 stop13h 30m
United Airlines
Wed 1/612:35 pm
OPO
-
IND
2 stops26h 13m
United Airlines
Deal found 7/4$834
This Delta deal was found by Cheapflights users on 7/4. 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 12/3112:00 pm
IND
-
OPO
2 stops17h 35m
Delta
Wed 1/65:00 am
OPO
-
IND
2 stops24h 32m
Delta
Deal found 7/4$837
This Orbitz deal was found by Cheapflights users on 7/4. 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.
Tue 12/293:16 pm
IND
-
OPO
2 stops23h 44m
Iberia
Tue 1/58:40 pm
OPO
-
IND
2 stops27h 00m
Iberia
Deal found 7/4$872
This United Airlines deal was found by Cheapflights users on 7/4. 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 12/298:00 am
IND
-
OPO
1 stop20h 30m
United Airlines
Tue 1/512:35 pm
OPO
-
IND
2 stops39h 22m
United Airlines
Deal found 7/4$883
This United Airlines deal was found by Cheapflights users on 7/5. 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 8/1012:54 pm
IND
-
OPO
1 stop15h 51m
United Airlines
Wed 8/1911:20 am
OPO
-
IND
2 stops34h 13m
United Airlines
Deal found 7/5$884
This FlightHub deal was found by Cheapflights users on 7/5. 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.
Fri 10/94:25 pm
IND
-
OPO
2 stops33h 25m
Multiple Airlines
Tue 10/138:40 am
OPO
-
IND
2 stops36h 54m
Multiple Airlines
Deal found 7/5$892
This Delta deal was found by Cheapflights users on 7/5. 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 8/102:24 pm
IND
-
OPO
2 stops20h 01m
Delta
Wed 8/195:00 am
OPO
-
IND
2 stops15h 33m
Delta
Deal found 7/5$900
This KAYAK deal was found by Cheapflights users on 7/4. 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.
Mon 12/283:00 pm
IND
-
OPO
1 stop13h 30m
Lufthansa
Wed 1/612:35 pm
OPO
-
IND
2 stops16h 06m
Lufthansa
Deal found 7/4$903
This Air France deal was found by Cheapflights users on 7/5. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:59 pm
IND
-
OPO
1 stop16h 31m
Air France
Wed 8/1912:40 pm
OPO
-
IND
1 stop13h 25m
Air France
Deal found 7/5$904

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 July 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$784
(United Airlines)

One-way from

$378
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,103
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. 25% potential increase in price ($481 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($115 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 7, 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

Wed 12/30

11:41 am-10:35 am

2 stops17h 54m

Porto

Thu 1/7

5:00 am-9:10 pm

2 stops21h 10m

$787
Quickest round-trip

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 9/1

5:29 pm-10:30 am

1 stop12h 01m

Porto

Tue 9/15

5:00 am-5:17 pm

2 stops17h 17m

$928

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 9/1

12:40 pm-7:00 am

2 stops37h 20m

Porto

Tue 9/15

6:00 am-9:16 am

2 stops32h 16m

$931

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 9/1

5:29 pm-10:30 am

1 stop12h 01m

Porto

Tue 9/15

1:05 pm-4:26 pm

1 stop32h 21m

$936

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 9/1

2:24 pm-3:25 pm

2 stops20h 01m

Porto

Tue 9/15

5:00 am-6:56 pm

2 stops18h 56m

$940

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Wed 8/5

9:05 am-6:55 am

1 stop16h 50m

Porto

Wed 8/12

8:55 am-8:43 pm

1 stop16h 48m

$944

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Tue 8/11

12:59 pm-10:30 am

1 stop16h 31m

Porto

Sat 8/22

5:00 am-7:01 pm

2 stops19h 01m

$956

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Sun 8/16

2:00 pm-9:45 am

2 stops14h 45m

Porto

Sun 8/23

6:00 am-8:14 pm

2 stops19h 14m

$960
Cheapest one-way
Quickest one-way

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Fri 10/2

5:54 pm-10:30 am

1 stop11h 36m

$453

IndianapolisPorto

IND - OPO

INDOPO

Indianapolis

Fri 10/2

11:09 am-8:35 pm

3 stops28h 26m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 12 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 July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice 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 June is currently the most expensive (average of $2,647). 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 July 7, 2026.
Peruse reviews from past customers who have flown with KLM 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.
KLM
7.8
Good
1,534 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,534 reviews
KLM
7.8
Good
1,534 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 Delta, KLM, and United Airlines fly from Indianapolis to Porto in about 12h 01m. The time it takes to get you to your destination can typically vary by up to 25h 19m. 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?

    KLM, at $490, was found to be the cheapest airline from Indianapolis to Porto.. This flight start at 64% 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 June is currently the most expensive (average of $2,647). 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 July 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$490Average$1,103FlexibilityNo cancel feeOn-time75%

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