IND - OPO

$318 Find Cheap Flights from Indianapolis to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Indianapolis to Porto departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Indianapolis to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Indianapolis to Porto, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Indianapolis to Porto (IND-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Indianapolis to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Indianapolis to Porto

Wed, Mar 18 - Thu, Mar 26
United Airlines Logo
6:34 pm - 9:30 amIND-OPO
10h 56m1 stop
United Airlines Logo
6:00 am - 9:43 pmOPO-IND
19h 43m2 stops
$583United Airlines
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Wed, Mar 18 - Thu, Mar 26
Lufthansa Logo
6:30 pm - 11:40 pmIND-OPO
25h 10m2 stops
Lufthansa Logo
6:00 am - 11:17 pmOPO-IND
21h 17m2 stops
$584Lufthansa
Find Deal
Thu, Mar 19 - Thu, Apr 2
Lufthansa Logo
6:30 pm - 11:40 pmIND-OPO
25h 10m2 stops
Lufthansa Logo
6:00 am - 5:48 pmOPO-IND
16h 48m2 stops
$632Lufthansa
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Thu, Nov 13 - Wed, Nov 26
Multiple Airlines Logo
6:00 am - 9:30 amIND-OPO
22h 30m1 stop
Multiple Airlines Logo
6:00 am - 5:49 pmOPO-IND
16h 49m2 stops
$703Multiple Airlines
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Mon, Nov 3 - Mon, Nov 10
SWISS Logo
4:30 pm - 11:15 amIND-OPO
37h 45m2 stops
SWISS Logo
12:05 pm - 9:59 pmOPO-IND
38h 54m2 stops
$726SWISS
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Tue, Dec 30 - Tue, Jan 6
Delta Logo
10:25 am - 10:30 amIND-OPO
19h 05m2 stops
Delta Logo
6:05 am - 9:06 pmOPO-IND
20h 01m2 stops
$827Delta
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Sat, Apr 18 - Sat, May 9
Iberia Logo
7:35 pm - 11:45 amIND-OPO
35h 10m2 stops
Iberia Logo
8:20 am - 9:09 pmOPO-IND
17h 49m2 stops
$834Iberia
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Tue, Dec 30 - Tue, Jan 6
Delta Logo
10:25 am - 10:30 amIND-OPO
19h 05m2 stops
Delta Logo
6:05 am - 10:29 pmOPO-IND
21h 24m2 stops
$1,032Delta
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Sat, Apr 18 - Sat, May 9
Multiple Airlines Logo
7:50 pm - 9:20 pmIND-OPO
20h 30m3 stops
Multiple Airlines Logo
7:05 am - 6:20 pmOPO-IND
16h 15m2 stops
$1,253Multiple Airlines
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Wed, Apr 1 - Wed, Apr 15
Iberia Logo
12:49 pm - 7:40 amIND-OPO
13h 51m2 stops
Iberia Logo
8:20 am - 6:40 pmOPO-IND
15h 20m2 stops
$3,570Iberia
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $583 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 42% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$583
Typical prices: $748-$1,293
United Airlines
Wed 3/18Thu 3/26
IND - OPO • 1 stop
Cheapest one-way
$318
Multiple Airlines
Wed 11/19
IND - OPO • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Booking Insights

KAYAK's insights & trends for Indianapolis to Porto flights

Get data-powered insights and trends into flights from Indianapolis to Porto to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Indianapolis to Porto?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Indianapolis to Porto departing in March.

What is the cheapest month to fly from Indianapolis to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Indianapolis to Porto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Indianapolis to Porto is February, where tickets cost $635 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is $1,831 and $1,442 respectively.

Good to know

Low seasonJanuary
Cheapest flight$318
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Indianapolis to Porto

When to book flights from Indianapolis to Porto

Are your dates flexible? Find out the best times to travel from Indianapolis to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Indianapolis to Porto

  • What is the cheapest flight from Indianapolis to Porto?

    In the last 3 days, the lowest price for a flight from Indianapolis to Porto was $318 for a one-way ticket and $583 for a round-trip.

  • Do I need a passport to fly between Indianapolis and Porto?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Indianapolis and on arrival in Porto.

  • Which aircraft models fly most regularly from Indianapolis to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Indianapolis to Porto?

    Star Alliance is the only airline alliance operating flights between Indianapolis and Porto.

  • How does KAYAK find such low prices on flights from Indianapolis to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Indianapolis to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Indianapolis to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Indianapolis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Indianapolis to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Indianapolis with another airline. Booking your flights between Indianapolis and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Indianapolis to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Indianapolis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Indianapolis to Porto

 
See real verified KAYAK customer reviews for airlines flying from Indianapolis to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Indianapolis to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8995 reviews
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
Airline reviews

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

2.0 MediocreAnonymous, Oct 2025BNA - ORD
Read more United Airlines reviews

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Friendly and professional flight crew. Aside from departure delay after boarding, easy flight and smooth landing.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

Flight was good but there are way to many announcements for credit cards etc.

Everything you need to know for your flight from Indianapolis to Porto

Information on your arrival and departure airports

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