IND - OPO

$399 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 3/17. 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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Everything you should know

Cheapest round-trip
$477
Lufthansa
Tue 3/17Tue 3/24
IND - OPO • 1 stop
Cheapest one-way
$399
United Airlines
Tue 3/17
IND - OPO • 2 stops
Top airlines
Lufthansa
Cheapest • from $477 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+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

Tue, Mar 17 - Tue, Mar 24
Lufthansa Logo
12:04 pm - 9:30 am
IND
-
OPO
17h 26m1 stop
Lufthansa Logo
6:00 am - 8:59 pm
OPO
-
IND
18h 59m2 stops
$477Lufthansa
Mon, Mar 16 - Mon, Mar 23
Lufthansa Logo
6:26 pm - 9:30 am
IND
-
OPO
11h 04m1 stop
Lufthansa Logo
12:30 pm - 6:50 pm
OPO
-
IND
34h 20m2 stops
$486Lufthansa
Mon, Mar 16 - Wed, Mar 25
United Airlines Logo
9:00 am - 9:30 am
IND
-
OPO
20h 30m2 stops
United Airlines Logo
6:00 am - 8:05 pm
OPO
-
IND
18h 05m2 stops
$491United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
12:25 pm - 3:25 pm
IND
-
OPO
22h 00m2 stops
United Airlines Logo
6:00 am - 4:41 pm
OPO
-
IND
39h 41m2 stops
$507United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
2:34 pm - 11:40 am
IND
-
OPO
16h 06m2 stops
United Airlines Logo
12:30 pm - 5:52 pm
OPO
-
IND
34h 22m2 stops
$528United Airlines
Tue, May 5 - Sun, May 10
Lufthansa Logo
7:45 pm - 11:25 pm
IND
-
OPO
22h 40m2 stops
Lufthansa Logo
6:00 am - 4:47 pm
OPO
-
IND
15h 47m2 stops
$544Lufthansa
Wed, Mar 18 - Thu, Mar 26
Multiple Airlines Logo
3:25 pm - 10:30 am
IND
-
OPO
15h 05m2 stops
Multiple Airlines Logo
11:20 am - 12:02 am
OPO
-
IND
16h 42m2 stops
$549Multiple Airlines
Wed, Mar 18 - Thu, Mar 26
KLM Logo
3:25 pm - 10:30 am
IND
-
OPO
15h 05m2 stops
KLM Logo
11:20 am - 12:02 am
OPO
-
IND
16h 42m2 stops
$556KLM
Mon, Mar 16 - Tue, Mar 24
Lufthansa Logo
6:26 pm - 9:30 am
IND
-
OPO
11h 04m1 stop
Lufthansa Logo
12:35 pm - 8:59 pm
OPO
-
IND
12h 24m1 stop
$591Lufthansa
Mon, Mar 16 - Wed, Mar 25
United Airlines Logo
6:26 pm - 9:30 am
IND
-
OPO
11h 04m1 stop
United Airlines Logo
12:35 pm - 10:59 pm
OPO
-
IND
14h 24m1 stop
$595United 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.

Which airlines provide the cheapest flights from Indianapolis to Porto?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Indianapolis to Porto were found on Lufthansa ($477) and United Airlines ($491).

Which airlines fly non-stop between Indianapolis and Porto?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Indianapolis to Porto.

There is just one airline that flies from Indianapolis to Porto direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $664.

Find deals

Good to know

Cheapest flight$399
Most popular time to fly and prices are also 1% 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 $399 for a one-way ticket and $477 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 9132 reviews
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

6.0 GoodAnonymous, Jan 2026
MKE - DEN
Read more United Airlines reviews

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Aircraft was noisy, old and never dimmed the lights on a night flight even on business class! I flew 17 times on United and probably another 40 on other airlines United USA /Europe flights were the worst to include luggage delayed once going to europe and once coming back

Check how old the airframe is, some older ones have inoperable seat back entertainment or power.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

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

Information on your arrival and departure airports

Indianapolis (IND)
Porto (OPO)