IND - OPO

$398 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 10/23. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$924
Typical prices: $1,690-$1,219
United Airlines
Sun 9/6Wed 9/16
IND - OPO • 1 stop
Cheapest one-way
$398
American Airlines
Fri 10/23
IND - OPO • 2 stops
Top airlines
United Airlines
Cheapest • from $924 (round-trip)
United Airlines
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
Insights
Insights
Top layover airports
Newark (EWR)
Cheapest • Avg $1,486 (round-trip)
Newark (EWR)
Shortest trip • 11h 20m (one-way)
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 59% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Sun, Sep 6 - Wed, Sep 16
United Airlines Logo
3:15 pm - 6:55 am
IND
-
OPO
10h 40m
1 stop
United Airlines Logo
12:45 pm - 10:57 am
OPO
-
IND
27h 12m
2 stops
$924United Airlines
Sun, Sep 6 - Wed, Sep 16
United Airlines Logo
7:00 am - 6:55 am
IND
-
OPO
18h 55m
2 stops
United Airlines Logo
12:45 pm - 12:47 pm
OPO
-
IND
29h 02m
2 stops
$929United Airlines
Sun, Sep 6 - Wed, Sep 16
United Airlines Logo
3:15 pm - 6:55 am
IND
-
OPO
10h 40m
1 stop
United Airlines Logo
12:35 pm - 8:37 pm
OPO
-
IND
13h 02m
1 stop
$945United Airlines
Thu, Sep 3 - Tue, Sep 8
United Airlines Logo
6:50 am - 6:55 am
IND
-
OPO
19h 05m
1 stop
United Airlines Logo
12:15 pm - 5:48 pm
OPO
-
IND
34h 33m
2 stops
$994United Airlines
Mon, Sep 7 - Mon, Sep 21
United Airlines Logo
9:00 am - 6:55 am
IND
-
OPO
16h 55m
1 stop
United Airlines Logo
6:00 am - 11:40 pm
OPO
-
IND
22h 40m
2 stops
$997United Airlines
Fri, Jul 10 - Thu, Jul 16
Multiple Airlines Logo
3:50 pm - 9:45 am
IND
-
OPO
12h 55m
1 stop
Multiple Airlines Logo
3:00 am - 4:30 pm
OPO
-
IND
18h 30m
2 stops
$998Multiple Airlines
Thu, Jul 9 - Thu, Jul 16
United Airlines Logo
12:54 pm - 6:55 am
IND
-
OPO
13h 01m
1 stop
United Airlines Logo
6:00 am - 11:44 pm
OPO
-
IND
22h 44m
2 stops
$999United Airlines
Fri, Jul 10 - Fri, Jul 17
Multiple Airlines Logo
12:52 pm - 8:30 am
IND
-
OPO
14h 38m
2 stops
Multiple Airlines Logo
5:00 am - 5:18 pm
OPO
-
IND
17h 18m
2 stops
$1,001Multiple Airlines
Thu, Jul 9 - Thu, Jul 16
United Airlines Logo
8:00 am - 6:55 am
IND
-
OPO
17h 55m
2 stops
United Airlines Logo
6:00 am - 6:06 pm
OPO
-
IND
17h 06m
2 stops
$1,003United Airlines
Thu, Jul 9 - Thu, Jul 16
United Airlines Logo
10:54 am - 6:55 am
IND
-
OPO
15h 01m
1 stop
United Airlines Logo
9:00 am - 10:15 pm
OPO
-
IND
18h 15m
1 stop
$1,005United Airlines
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 September.

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 $1,939 and $1,876 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$398
Best time to beat the crowds with an average 59% drop in price.
Most popular time to fly with an average 3% increase in price.
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 7 days, the lowest price for a flight from Indianapolis to Porto was $398 for a one-way ticket and $924 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 9749 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6.0 GoodRoger, May 2026
ONT - SFO
Read more United Airlines reviews

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Easy of boarding, helpfully staff at check in, surprisingly comfortable seating

Check in was chaotic with only one counter for business class and first class. The luggage conveyor belt at JFK airport was broken so the flight departure was delayed which made the flight stressful as I had a tight connection. Although the captain said they could make up the delay, they didn’t do so.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Lost of requested seat assignments. Lost my husband's meal choice

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

We had a delay, but thankfully I made it to my connection. Overall it went smooth

The flight had a delay but I made it to my connection. Flight was smooth overall

As I wrote earlier, poor planning and/or communication. At least twice, we were told that we would be boarding in less than ten minutes, only to have the flight again delayed at least another hour.

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

Information on your arrival and departure airports

Indianapolis (IND)
Porto (OPO)