$278 Cheap Flights from Riga (RIX) to Kos (KGS)

View $278 flight on Fri, Sep 11, 2026Opens in a new window

Popular airlines from Riga International Airport (RIX) to Kos (KGS-Kos Island Intl.)

Cheap Flights from Riga to Kos (RIX-KGS)

Prices were available within the past 7 days and start at $278 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Brussels Airlines
Sat, May 9 - Mon, May 25
RIX
Riga
KGS
Kos
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sat, May 9 from Riga to Kos, returning Mon, May 25, priced at $259 found 2 days ago
Brussels Airlines
Sat, May 9 - Fri, May 29
RIX
Riga
KGS
Kos
$281 Roundtrip, found 2 days ago
$281
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sat, May 9 from Riga to Kos, returning Fri, May 29, priced at $281 found 2 days ago
Lufthansa
Sat, May 16 - Wed, Jun 3
RIX
Riga
KGS
Kos
$286 Roundtrip, found 2 days ago
$286
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, May 16 from Riga to Kos, returning Wed, Jun 3, priced at $286 found 2 days ago
Brussels Airlines
Sat, May 30 - Tue, Jun 16
RIX
Riga
KGS
Kos
$287 Roundtrip, found 2 days ago
$287
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sat, May 30 from Riga to Kos, returning Tue, Jun 16, priced at $287 found 2 days ago
Lufthansa
Sat, May 16 - Sat, May 30
RIX
Riga
KGS
Kos
$300 Roundtrip, found 2 days ago
$300
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, May 16 from Riga to Kos, returning Sat, May 30, priced at $300 found 2 days ago
Brussels Airlines
Sat, May 30 - Sat, Jun 13
RIX
Riga
KGS
Kos
$301 Roundtrip, found 2 days ago
$301
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sat, May 30 from Riga to Kos, returning Sat, Jun 13, priced at $301 found 2 days ago
Brussels Airlines
Sat, May 30 - Sun, Jun 14
RIX
Riga
KGS
Kos
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sat, May 30 from Riga to Kos, returning Sun, Jun 14, priced at $309 found 2 days ago
Swiss International Air Lines
Wed, May 6 - Mon, May 25
RIX
Riga
KGS
Kos
$310 Roundtrip, found 2 days ago
$310
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Wed, May 6 from Riga to Kos, returning Mon, May 25, priced at $310 found 2 days ago
Austrian Airlines
Fri, May 8 - Mon, May 25
RIX
Riga
KGS
Kos
$310 Roundtrip, found 2 days ago
$310
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Fri, May 8 from Riga to Kos, returning Mon, May 25, priced at $310 found 2 days ago
Aegean
Fri, Sep 11 - Fri, Sep 18
RIX
Riga
KGS
Kos
$675 Roundtrip, found 2 days ago
$675
Roundtrip
found 2 days ago
Select Aegean flight, departing Fri, Sep 11 from Riga to Kos, returning Fri, Sep 18, priced at $675 found 2 days ago

Frequently asked questions

How much does a flight from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS) cost?
Snag a cheap one-way flight from $278 or cheap return flight from $259 from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS)?
May is the least expensive month to fly from RIX to KGS. Traveling during quieter months is often the key to finding a great deal.
What is the cheapest airline that flies from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from RIX to KGS. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS)?
There aren't any daily nonstop flights available from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from RIX to KGS?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS)?
To avoid possible delays on the Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS) route, fly before 3 PM. Later flights are 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 Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS) last-minute?
Holding off until just before your departure to book a flight from RIX to KGS generally means paying more. Although you may find some last-minute offers, there's no guarantee. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a RIX to KGS flight and hotel package?
You can save money by booking a RIX to KGS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After choosing your preferred flights and accommodations, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Riga Intl. Airport (RIX) to Kos Island Intl. Airport (KGS)?
You can usually reschedule or cancel your RIX to KGS flight. However, if it's been more than 24 hours since booking, additional fees 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.

Travel information

Origin airport
Riga Intl.
Destination airport
Kos Island Intl.
Roundtrip price
$259
Distance
1397 mi

Book with confidence

Riga to Kos Flights

The cheapest times to fly from Riga 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 Riga to Kos are during the month of May. You can find some of the cheapest flights from Riga to Kos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Riga to Kos

Sunday is one of the best days to book for cheap flights from Riga 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 Riga 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 Riga to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from $278 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 Riga 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 Riga 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.

 

Riga to Kos Flights

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*Available to One Key members.