Cheap flights from Rhode Island to Kos from $819

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Rhode Island to Kos departing on 11/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
8:00 pm - 8:05 pmBOS-KGS
17h 05m2 stops
Multiple Airlines Logo
4:40 pm - 6:05 pmKGS-BOS
32h 25m2 stops
$819Multiple Airlines
Find Deal
Wed, Nov 19 - Mon, Dec 1
Multiple Airlines Logo
4:20 pm - 8:05 pmBOS-KGS
20h 45m3 stops
Multiple Airlines Logo
12:35 pm - 2:05 pmKGS-BOS
32h 30m3 stops
$869Multiple Airlines
Find Deal
Wed, Nov 19 - Mon, Dec 1
Multiple Airlines Logo
3:40 pm - 7:30 pmBOS-KGS
20h 50m3 stops
Multiple Airlines Logo
8:35 pm - 2:05 pmKGS-BOS
24h 30m2 stops
$920Multiple Airlines
Find Deal
Wed, Nov 19 - Mon, Dec 1
SWISS Logo
9:40 pm - 6:45 pmBOS-KGS
14h 05m1 stop
SWISS Logo
11:05 am - 7:55 pmKGS-BOS
15h 50m1 stop
$1,729SWISS
Find Deal
Sun, Mar 29 - Thu, Apr 2

Lufthansa flights from Rhode Island to Kos

Our best Lufthansa deals on Rhode Island to Kos flight tickets
Lufthansa
Oct 10
BOS8:05 pmBoston Logan Intl
16h 20m
1 stop
KGS7:25 pmKos
Oct 18
KGS9:40 amKos
13h 15m
1 stop
BOS3:55 pmBoston Logan Intl
Lufthansa
Oct 10
BOS8:05 pmBoston Logan Intl
16h 20m
1 stop
KGS7:25 pmKos
Oct 18
KGS9:40 amKos
15h 00m
2 stops
BOS5:40 pmBoston Logan Intl

momondo Fare Finder

 
Customize your flight search to find flights from Rhode Island 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, momondo users made 832,500 searches. Data last updated October 9, 2025.
Use the filters below to find and compare flights from Rhode Island to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 11/19

8:00 pm-8:05 pm

2 stops17h 05m

Kos

Mon 12/1

4:40 pm-6:05 pm

2 stops32h 25m

$819

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 11/19

4:20 pm-8:05 pm

3 stops20h 45m

Kos

Mon 12/1

12:35 pm-2:05 pm

3 stops32h 30m

$869

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 11/19

3:40 pm-7:30 pm

3 stops20h 50m

Kos

Mon 12/1

8:35 pm-2:05 pm

2 stops24h 30m

$920

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Sun 3/29

9:40 pm-6:45 pm

1 stop14h 05m

Kos

Thu 4/2

11:05 am-7:55 pm

1 stop15h 50m

$1,729

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Rhode Island to Kos

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Kos?

The cheapest day to depart from Rhode Island to Kos is on a Saturday when prices can be found for as low as $1,035. On the other hand, Monday is the most expensive day to depart from Rhode Island because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,398.

What is the cheapest time of day to depart on your flight to Kos?

Flying to Kos from Rhode Island in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,202 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,219 on average. Flights to Kos from Rhode Island in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Rhode Island to Kos flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rhode Island to Kos

Direct flights

None
There are no direct flights from Rhode Island to Kos. There are no popular flight routes from Rhode Island to Kos.
  • When did momondo last update prices for flights from Rhode Island to Kos Airport?

    Prices for flights from Rhode Island to Kos Airport were last updated today.

  • How many operators does momondo search for flights from Rhode Island to Kos Airport?

  • How old do you have to be to fly from Rhode Island to Kos Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rhode Island to Kos Airport.

  • What documentation or ID do you need to fly to Kos Airport?

    The required travel and health documents for your Kos Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kos Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Kardamena
Marmari

Why use momondo?

Why should I use momondo to find a flight deal from Rhode Island to Kos?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kos from Rhode Island.

Can I find flights from Rhode Island to Kos with flexible booking policies on momondo?

Yes. All flights to Kos from Rhode Island on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Rhode Island to Kos?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Kos from Rhode Island.

I’m not ready to book a flight from Rhode Island to Kos right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Kos, momondo offers a useful price alert feature which will track prices for flights to Kos from Rhode Island and alert you when they change.

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1 adult
Sat 11/8
Sat 11/15

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