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Cheap flights from Rhode Island to Kos from $336

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rhode Island to Kos departing on 10/22. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Rhode Island to Kos

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:45 pm - 8:20 pm
BOS
-
KGS
19h 35m
2 stops
Multiple Airlines Logo
8:40 pm - 7:55 pm
KGS
-
BOS
30h 15m
1 stop
$903Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
6:30 am - 12:35 am
BOS
-
KGS
35h 05m
3 stops
Multiple Airlines Logo
11:25 am - 3:35 pm
KGS
-
BOS
35h 10m
3 stops
$917Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
10:00 pm - 8:20 pm
BOS
-
KGS
15h 20m
2 stops
Multiple Airlines Logo
7:55 pm - 8:10 pm
KGS
-
BOS
31h 15m
2 stops
$949Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
5:45 am - 9:15 pm
BOS
-
KGS
32h 30m
3 stops
Multiple Airlines Logo
12:15 am - 6:35 pm
KGS
-
BOS
25h 20m
2 stops
$979Multiple Airlines
Wed, Aug 19 - Tue, Aug 25
Multiple Airlines Logo
8:50 pm - 9:15 pm
BOS
-
KGS
17h 25m
2 stops
Multiple Airlines Logo
6:00 am - 10:38 pm
KGS
-
BOS
47h 38m
3 stops
$1,223Multiple Airlines
Wed, Jul 15 - Sun, Jul 26
Multiple Airlines Logo
4:45 pm - 6:55 pm
BOS
-
KGS
19h 10m
1 stop
Multiple Airlines Logo
12:55 pm - 2:45 pm
KGS
-
BOS
32h 50m
2 stops
$1,229Multiple Airlines
Wed, Jul 15 - Sun, Jul 26
Multiple Airlines Logo
4:45 pm - 8:20 pm
BOS
-
KGS
20h 35m
2 stops
Multiple Airlines Logo
12:55 pm - 2:45 pm
KGS
-
BOS
32h 50m
2 stops
$1,282Multiple Airlines
Wed, Jul 15 - Sun, Jul 26
Multiple Airlines Logo
8:05 pm - 6:10 pm
BOS
-
KGS
15h 05m
1 stop
Multiple Airlines Logo
10:15 am - 5:40 pm
KGS
-
BOS
14h 25m
1 stop
$1,290Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
9:35 am - 4:20 pm
BOS
-
KGS
23h 45m
3 stops
Multiple Airlines Logo
12:55 pm - 10:38 pm
KGS
-
BOS
40h 43m
3 stops
$1,296Multiple Airlines
Wed, Jul 15 - Sun, Jul 26
SWISS Logo
5:10 pm - 7:40 pm
BOS
-
KGS
19h 30m
1 stop
SWISS Logo
8:30 pm - 3:10 pm
KGS
-
BOS
25h 40m
1 stop
$1,804SWISS
Mon, Jul 13 - Tue, Jul 21

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SWISS flights from Rhode Island to Kos

Our best SWISS deals on Rhode Island to Kos flight tickets
SWISS
Jul 13
BOS5:10 pmBoston Logan Intl
19h 30m
1 stop
KGS7:40 pmKos
Jul 21
KGS8:30 pmKos
25h 40m
1 stop
BOS3:10 pmBoston Logan Intl
$1,804
SWISS
Jul 10
BOS9:40 pmBoston Logan Intl
15h 20m
1 stop
KGS8:00 pmKos
Jul 22
KGS8:40 pmKos
30h 15m
1 stop
BOS7:55 pmBoston Logan Intl
$1,854
SWISS
Jul 10
BOS5:10 pmBoston Logan Intl
19h 50m
1 stop
KGS8:00 pmKos
Jul 19
KGS3:15 pmKos
30h 55m
1 stop
BOS3:10 pmBoston Logan Intl
$1,924

Austrian Airlines flights from Rhode Island to Kos

Our best Austrian Airlines deals on Rhode Island to Kos flight tickets
Austrian Airlines
Jul 14
BOS2:30 pmBoston Logan Intl
23h 20m
2 stops
KGS8:50 pmKos
Jul 21
KGS10:05 amKos
34h 45m
1 stop
BOS1:50 pmBoston Logan Intl
$1,817
Austrian Airlines
Jul 14
BOS5:10 pmBoston Logan Intl
20h 40m
1 stop
KGS8:50 pmKos
Jul 22
KGS9:40 pmKos
25h 58m
2 stops
BOS4:38 pmBoston Logan Intl
$1,823
Austrian Airlines
Jul 14
BOS2:30 pmBoston Logan Intl
23h 20m
2 stops
KGS8:50 pmKos
Jul 21
KGS10:05 amKos
37h 33m
2 stops
BOS4:38 pmBoston Logan Intl
$1,828

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 June 27, 2026.
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

Cheapest round-trip

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 8/19

5:45 pm-8:20 pm

2 stops19h 35m

Kos

Wed 8/26

8:40 pm-7:55 pm

1 stop30h 15m

$903

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 8/19

6:30 am-12:35 am

3 stops35h 05m

Kos

Wed 8/26

11:25 am-3:35 pm

3 stops35h 10m

$917

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 8/19

10:00 pm-8:20 pm

2 stops15h 20m

Kos

Wed 8/26

7:55 pm-8:10 pm

2 stops31h 15m

$949

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 8/19

5:45 am-9:15 pm

3 stops32h 30m

Kos

Tue 8/25

12:15 am-6:35 pm

2 stops25h 20m

$979

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 7/15

8:50 pm-9:15 pm

2 stops17h 25m

Kos

Sun 7/26

6:00 am-10:38 pm

3 stops47h 38m

$1,223

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 7/15

4:45 pm-6:55 pm

1 stop19h 10m

Kos

Sun 7/26

12:55 pm-2:45 pm

2 stops32h 50m

$1,229

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 7/15

4:45 pm-8:20 pm

2 stops20h 35m

Kos

Sun 7/26

12:55 pm-2:45 pm

2 stops32h 50m

$1,282
Quickest round-trip

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 8/19

8:05 pm-6:10 pm

1 stop15h 05m

Kos

Wed 8/26

10:15 am-5:40 pm

1 stop14h 25m

$1,290

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Wed 7/15

9:35 am-4:20 pm

3 stops23h 45m

Kos

Sun 7/26

12:55 pm-10:38 pm

3 stops40h 43m

$1,296

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Mon 7/13

5:10 pm-7:40 pm

1 stop19h 30m

Kos

Tue 7/21

8:30 pm-3:10 pm

1 stop25h 40m

$1,804

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kos from

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 airline that flies from Rhode Island to Kos?

SWISS is the most popular carrier operating from Rhode Island to Kos

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

Fastest flight time

14h 49m

Direct flights

None
The fastest flight from Rhode Island to Kos takes 14h 49m
There are no direct flights from Rhode Island to Kos. There are no popular flight routes from Rhode Island to Kos.
Search flight deals

Frequently asked questions about flying 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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