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Kos

$461+ Cheap flights from Riverside, CA to Kos (KGS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — KGS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Riverside to Kos

Keep the following information in mind while searching for Riverside to Kos flight deals. Data was last updated July 31, 2025.

Round-trip from

$639
(oojo)

One-way from

$461
(SWISS)
From Riverside to Kos
Search Deals
One-way flight from Riverside to Kos
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Find flight deals from Riverside to Kos

Cheapest flights from Riverside to Kos
Explore the most affordable flight options available from Riverside to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/103:05 pmLAX - KGS
1 stop32h 10mMultiple Airlines
Sat 8/238:45 pmKGS - LAX
1 stop29h 45mMultiple Airlines
Deal found 7/31$639
This Austrian Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/135:30 pmLAX - KGS
2 stops40h 30mAustrian Airlines
Sat 9/206:45 pmKGS - LAX
1 stop28h 20mAustrian Airlines
Deal found 7/30$825
This SWISS deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:35 pmLAX - KGS
1 stop28h 35mSWISS
Sat 9/208:45 pmKGS - LAX
1 stop29h 45mSWISS
Deal found 7/30$891

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Kos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Riverside to Kos that are best for you.

Fly from

Riverside

Fly to

Kos

Route

Depart

Return

Price

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles

Sun 8/10

3:05 pm-9:15 am

1 stop32h 10m

Kos

Sat 8/23

8:45 pm-4:30 pm

1 stop29h 45m

$639

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles

Sat 9/13

5:30 pm-8:00 pm

2 stops40h 30m

Kos

Sat 9/20

6:45 pm-1:05 pm

1 stop28h 20m

$825

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles

Sat 9/13

7:35 pm-10:10 am

1 stop28h 35m

Kos

Sat 9/20

8:45 pm-4:30 pm

1 stop29h 45m

$891

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles

Fri 8/15

7:35 pm-2:30 pm

1 stop32h 55m

$461

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles

Fri 8/15

5:30 pm-9:10 am

2 stops29h 40m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Riverside to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Riverside with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Riverside to Kos
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with Austrian Airlines and SWISS from Riverside to Kos by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
823 reviews

Food

6.8

Entertainment

6.8

Boarding

7.6

Overall

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
823 reviews
Austrian Airlines
7.6
Good
823 reviews

Food

6.8

Entertainment

6.8

Boarding

7.6

Overall

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,686 reviews
Austrian Airlines
7.6
Good
823 reviews

Food

6.8

Entertainment

6.8

Boarding

7.6

Overall

7.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Related info for your journey

Find useful and relevant information for your journey from Riverside to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kos from Riverside?

    Located just 12.8 mi from the city center, Kos is the airport most travelers will use when flying to Kos from Riverside. Booking flights from Riverside to Kos (KGS) should be relatively easy as there are 0 daily inbound flights from Riverside from 1 airline.

  • Can I find deals for flights from Riverside to Kos that include hotel bookings?

    Yes. In addition to deals on Riverside to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Riverside to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Riverside to Kos.

  • Can I find deals for business class flights from Riverside to Kos?

    Yes. Cheapflights offers flight deals from Riverside to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Riverside to Kos

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Riverside to Kos

Discover the top airline that operate flights from Riverside to Kos. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$602Average$800FlexibilityNo cancel feeOn-time76%

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