IND - OPO

$390 Find Cheap Flights from Indianapolis to Porto - Compare and Save

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 1/1. 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

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Everything you should know

Cheapest round-trip
$716
SWISS, Lufthansa
Mon 11/16Wed 11/25
IND - OPO • 2 stops
Cheapest one-way
$390
United Airlines
Fri 1/1
IND - OPO • 1 stop
Top airlines
Cheapest • from $729 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Indianapolis and Porto. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $1,256 (round-trip)
Shortest trip • 11h 25m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 61% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Porto!
Flight Deals
Booking Insights
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

Mon, Nov 16 - Wed, Nov 25
Multiple Airlines Logo
4:30 pm - 11:15 amIND  Indianapolis-OPO Porto
37h 45m2 stops Chicago O'Hare Intl Zurich
Multiple Airlines Logo
6:00 am - 11:47 pmOPO  Porto-IND Indianapolis
22h 47m2 stops Frankfurt am Main Chicago O'Hare Intl
$716Multiple Airlines
Mon, Nov 16 - Wed, Nov 25
United Airlines Logo
3:41 pm - 9:30 amIND  Indianapolis-OPO Porto
12h 49m1 stop Newark
United Airlines Logo
6:00 am - 11:59 pmOPO  Porto-IND Indianapolis
22h 59m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$729United Airlines
Mon, Nov 16 - Mon, Nov 23
Iberia Logo
12:39 pm - 7:40 amIND  Indianapolis-OPO Porto
14h 01m2 stops New York John F Kennedy Intl Madrid Barajas
Iberia Logo
8:40 pm - 11:05 pmOPO  Porto-IND Indianapolis
31h 25m2 stops Madrid Barajas New York John F Kennedy Intl
$731Iberia
Sun, Nov 15 - Thu, Nov 19
United Airlines Logo
4:30 pm - 9:30 amIND  Indianapolis-OPO Porto
12h 00m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 6:46 pmOPO  Porto-IND Indianapolis
17h 46m2 stops Frankfurt am Main Chicago O'Hare Intl
$734United Airlines
Sun, Nov 15 - Thu, Nov 19
United Airlines Logo
4:30 pm - 9:30 amIND  Indianapolis-OPO Porto
12h 00m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
12:35 pm - 11:44 pmOPO  Porto-IND Indianapolis
16h 09m1 stop Newark
$743United Airlines
Mon, Nov 16 - Mon, Nov 23
Multiple Airlines Logo
8:00 am - 9:30 amIND  Indianapolis-OPO Porto
20h 30m1 stop Newark
Multiple Airlines Logo
12:35 pm - 5:52 pmOPO  Porto-IND Indianapolis
34h 17m2 stops Frankfurt am Main Chicago O'Hare Intl
$749Multiple Airlines
Mon, Nov 2 - Mon, Nov 9
Iberia Logo
1:07 pm - 11:45 amIND  Indianapolis-OPO Porto
17h 38m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
8:40 pm - 10:50 pmOPO  Porto-IND Indianapolis
31h 10m2 stops Madrid Barajas New York John F Kennedy Intl
$772Iberia
Mon, Nov 16 - Wed, Nov 25
Lufthansa Logo
12:04 pm - 9:30 amIND  Indianapolis-OPO Porto
16h 26m1 stop Newark
Lufthansa Logo
12:35 pm - 11:44 pmOPO  Porto-IND Indianapolis
16h 09m1 stop Newark
$788Lufthansa
Mon, Nov 16 - Mon, Nov 23
United Airlines Logo
3:41 pm - 9:30 amIND  Indianapolis-OPO Porto
12h 49m1 stop Newark
United Airlines Logo
12:35 pm - 11:44 pmOPO  Porto-IND Indianapolis
16h 09m1 stop Newark
$788United Airlines
Mon, Nov 2 - Mon, Nov 9
Air France Logo
2:57 pm - 10:35 amIND  Indianapolis-OPO Porto
14h 38m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
Air France Logo
11:00 am - 8:40 pmOPO  Porto-IND Indianapolis
14h 40m1 stop New York John F Kennedy Intl
$846Air France
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.

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 January, where tickets cost $490 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $2,647 and $1,876 respectively.

Good to know

Cheapest flight

$390
Most popular time to fly and prices are also 13% 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 5 days, the lowest price for a flight from Indianapolis to Porto was $390 for a one-way ticket and $716 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 10089 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.7Food
Airline reviews

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

2.0 MediocreDarly, Aug 2026
Read more United Airlines reviews

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

Old 757 with poor entertainment system. United no longer partners with United for free text and email. O'Hara an absolute disaster! Limited gates clauses two hour delay. Unfortunately this appears to be the norm.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

It was a good experience, unfortunately my checked baggages were come late and not arrived on time.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

Improve the food offerings and cabin seating. My wife would prefer to fly another airline, even with a connection for a more comfortable trip. A 737-8 should not be scheduled for a 6 hour segment, which turned into 7.5 hours due to the origin ground delay.

OK, I don’t expect much from coach class. Everything basically is pretty lousy. But at least I expect my bloody luggage to get from A to B. Tap Airlines lost my luggage and it has been more than 24 hours in Lisbon and they still have not located my luggage. On top of that, they are incredibly unhelpful. They feel actually dismissive. This lousy customer service.

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Flight was great. On time. Pleasant crew and responsible passengers. My only disappointment was that there was no coffee or tea offered. It was a short flight but a coffee would have been appreciated for what the price of tickets are now.

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

Information on your arrival and departure airports