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Keflavik Intl

$588+ Cheap flights from New Windsor (SWF) to Keflavik Intl (KEF)

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — KEF
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from New Windsor Stewart to Reykjavik Keflavik Intl are usually found in November or February, booked 16 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Stewart to Keflavik Intl

Cheapest flights from Stewart to Keflavik Intl
Explore the most affordable flight options available from Stewart to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:38 am
SWF
-
KEF
1 stop19h 47m
Multiple Airlines
Sat 5/164:45 pm
KEF
-
SWF
1 stop20h 13m
Multiple Airlines
Deal found 3/9$1,350
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1511:48 am
SWF
-
KEF
1 stop14h 27m
Multiple Airlines
Wed 3/184:45 pm
KEF
-
SWF
2 stops22h 23m
Multiple Airlines
Deal found 3/10$2,018
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/211:48 am
SWF
-
KEF
1 stop17h 37m
Multiple Airlines
Thu 4/94:45 pm
KEF
-
SWF
1 stop22h 05m
Multiple Airlines
Deal found 3/12$2,067
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2911:48 am
SWF
-
KEF
1 stop17h 37m
Multiple Airlines
Wed 4/14:45 pm
KEF
-
SWF
1 stop22h 23m
Multiple Airlines
Deal found 3/10$2,424
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2012:11 pm
SWF
-
KEF
2 stops14h 04m
Multiple Airlines
Wed 3/255:15 pm
KEF
-
SWF
1 stop21h 53m
Multiple Airlines
Deal found 3/9$2,704

Find flight deals from Stewart to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Stewart (SWF) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,350
(Kiwi.com)

One-way from

$588
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$384
Provider with most accurate pricing for New Windsor Stewart-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for New Windsor Stewart-Reykjavik Keflavik Intl flights.
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From New Windsor Stewart to Reykjavik Keflavik Intl
Search Deals
One-way flight from New Windsor Stewart to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stewart to Keflavik Intl 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 March 14, 2026.
Use the filters below to find and compare flights from New Windsor to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Sun 5/10

9:38 am-9:25 am

1 stop19h 47m

Reykjavik Keflavik Intl

Sat 5/16

4:45 pm-8:58 am

1 stop20h 13m

$1,350
Quickest round-trip

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Thu 4/2

11:48 am-9:25 am

1 stop17h 37m

Reykjavik Keflavik Intl

Thu 4/9

4:45 pm-10:50 am

1 stop22h 05m

$2,067

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Sun 3/29

11:48 am-9:25 am

1 stop17h 37m

Reykjavik Keflavik Intl

Wed 4/1

4:45 pm-11:08 am

1 stop22h 23m

$2,424
Cheapest one-way

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Wed 6/10

12:05 pm-6:40 am

1 stop14h 35m

$594

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Wed 6/24

12:05 pm-6:40 am

1 stop14h 35m

$619
Quickest one-way

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Mon 3/23

12:11 pm-6:15 am

2 stops14h 04m

$622

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Wed 8/12

12:05 pm-6:40 am

1 stop14h 35m

$624

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Fri 6/19

12:15 pm-9:25 am

2 stops17h 10m

$627

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Thu 5/28

9:38 am-9:25 am

1 stop19h 47m

$627

New WindsorReykjavik

SWF - KEF

SWFKEF

New Windsor Stewart

Wed 7/8

12:05 pm-6:40 am

1 stop14h 35m

$635

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Stewart to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Stewart to Keflavik Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on New Windsor-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on New Windsor-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from New Windsor-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New Windsor-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New Windsor-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Stewart to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Stewart 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 New Windsor to Reykjavik Keflavik Intl Airport

How far ahead should I book a flight from New Windsor to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Stewart to Keflavik Intl. Price data was last updated on March 6, 2026.

The best time to book flights from New Windsor to Reykjavik Keflavik Intl Airport is 15 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from New Windsor to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from New Windsor to Reykjavik Keflavik Intl Airport (average of $244). Flying from New Windsor to Reykjavik Keflavik Intl Airport in December is currently the most expensive (average of $351). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated March 14, 2026.
See what other customers who have flown with Icelandair and PLAY from New Windsor to Reykjavik Keflavik Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
620 reviews

Food

6.2

Crew

8.0

Entertainment

7.0

Comfort

7.0

Overall

7.1

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

ZRH - KEF

Almost 7 hr flight and no ear buds provided and no food. I would choose a different airline next time for that reason.
Icelandair
7.1
Good
620 reviews
Icelandair
7.1
Good
620 reviews

Food

6.2

Crew

8.0

Entertainment

7.0

Comfort

7.0

Overall

7.1

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

ZRH - KEF

Almost 7 hr flight and no ear buds provided and no food. I would choose a different airline next time for that reason.
PLAY
7.0
Good
Icelandair
7.1
Good
620 reviews

Food

6.2

Crew

8.0

Entertainment

7.0

Comfort

7.0

Overall

7.1

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

ZRH - KEF

Almost 7 hr flight and no ear buds provided and no food. I would choose a different airline next time for that reason.

Related info for your journey

Find useful and relevant information for your journey from Stewart to Keflavik Intl. 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 from for flights from New Windsor to Reykjavik Keflavik Intl?

    Most people fly from New Windsor Stewart (SWF) if they book a flight from New Windsor to Reykjavik Keflavik Intl. On average, Stewart has 0 outbound flights to Reykjavik Keflavik Intl per day from 2 airlines. New Windsor Stewart is conveniently located just 4.3 mi from New Windsor’s city center.

  • What are the cheapest airlines flying from New Windsor to Reykjavik Keflavik Intl Airport round-trip?

    Flying on PLAY is currently your cheapest option to Reykjavik Keflavik Intl Airport, with prices starting at $259. Another option worth looking into is Icelandair, starting at $326 round trip. PLAY is 31% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from New Windsor to Reykjavik Keflavik Intl Airport?

    Looking at all options, your cheapest flight can be booked for $127. While the most popular route (New Windsor Stewart - Reykjavik Keflavik Intl) can be booked for $1,506 on average, our data indicates $338 when flying from New Windsor to Reykjavik Keflavik Intl Airport.

  • Can I find deals for flights from Stewart to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Stewart to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Stewart to Keflavik Intl?

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

  • Can I find deals for business class flights from Stewart to Keflavik Intl?

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

  • What is the cheapest month to book a flight from New Windsor to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from New Windsor to Reykjavik Keflavik Intl Airport (average of $244). Flying from New Windsor to Reykjavik Keflavik Intl Airport in December is currently the most expensive (average of $351). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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Alternative routes for Stewart to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Stewart to Keflavik Intl

Discover the top 2 airlines that operate flights from Stewart to Keflavik Intl. 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 March 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$259Average$372FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$326Average$461FlexibilityNo cancel feeOn-time76%

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