$692 Cheap Flights from Pittsburgh (PIT) to Kos (KGS)

View $692 flight on Mon, Jul 27, 2026Opens in a new window

Popular airlines from Pittsburgh Intl. Airport (PIT) to Kos (KGS-Kos Island Intl.)

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Cheap Flights from Pittsburgh to Kos (PIT-KGS)

Prices were available within the past 7 days and start at $692 for one-way flights and $1,359 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,359 Roundtrip, found 2 days ago
$1,359
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,359 found 2 days ago
Lufthansa
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,382 Roundtrip, found 2 days ago
$1,382
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,382 found 2 days ago
United
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,418 Roundtrip, found 2 days ago
$1,418
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,418 found 2 days ago
Lufthansa
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,420 Roundtrip, found 2 days ago
$1,420
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,420 found 2 days ago
United
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,422 Roundtrip, found 2 days ago
$1,422
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,422 found 2 days ago
Swiss International Air Lines
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,423 Roundtrip, found 2 days ago
$1,423
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,423 found 2 days ago
Air Canada
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,436 Roundtrip, found 2 days ago
$1,436
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,436 found 2 days ago
Lufthansa
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,439 Roundtrip, found 2 days ago
$1,439
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,439 found 2 days ago
Lufthansa
Mon, Jul 27 - Mon, Aug 10
PIT
Pittsburgh
KGS
Kos
$1,441 Roundtrip, found 2 days ago
$1,441
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Jul 27 from Pittsburgh to Kos, returning Mon, Aug 10, priced at $1,441 found 2 days ago
British Airways
Wed, Jul 1 - Wed, Jul 22
PIT
Pittsburgh
KGS
Kos
$1,630 Roundtrip, found 6 days ago
$1,630
Roundtrip
found 6 days ago
Select British Airways flight, departing Wed, Jul 1 from Pittsburgh to Kos, returning Wed, Jul 22, priced at $1,630 found 6 days ago
Flights from Pittsburgh (PIT) to Kos (KGS)
Origin airport
Pittsburgh Intl.
Destination airport
Kos Island Intl.
Roundtrip price
$1,359
Distance
5390 mi

Pittsburgh to Kos Flights

The cheapest times to fly from Pittsburgh to Kos

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Pittsburgh to Kos are during the month of July. You can find some of the cheapest flights from Pittsburgh to Kos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Pittsburgh to Kos

Sunday is one of the best days to book for cheap flights from Pittsburgh to Kos: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Pittsburgh to Kos

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Pittsburgh to Kos in 2026. You can also book with separate airlines for your outbound and return journeys, from $692 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Pittsburgh to Kos flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Pittsburgh to Kos airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS) cost?
Secure a cheap one-way flight from $692 or cheap return flight from $1,359 from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS)?
Planning your trip for July can help you save, as it's the cheapest month for flights between PIT and KGS. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest PIT to KGS flight.
How many flights per day from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS)?
You'll have to book a flight with a layover when traveling from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from PIT to KGS?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS)?
Select a flight from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS) last-minute?
Waiting until just before your departure to book a ticket from PIT to KGS generally means paying more. While you may come across some last-minute deals, there's no guarantee. Keep your travel schedule open to maximize your chances of getting a bargain.
Is it cheaper to book a PIT to KGS flight and hotel package?
Booking a PIT to KGS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our impressive range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pittsburgh Intl. Airport (PIT) to Kos Island Intl. Airport (KGS)?
Usually, it's possible to reschedule or cancel your PIT to KGS flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.