$217+ Cheap flights from the United States 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 3/22. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from USA to Keflavik Intl with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from USA to Keflavik Intl
Cheapest flights from USA to Keflavik IntlExplore the most affordable flight options available from USA to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 29, 2026.
Explore the most affordable flight options available from USA to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 29, 2026.
This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CrystalTravel deal was found by Cheapflights users on 1/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 1/26. 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.
This oojo deal was found by Cheapflights users on 1/28. 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.
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Flightnetwork deal was found by Cheapflights users on 1/26. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CrystalTravel deal was found by Cheapflights users on 1/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Flightnetwork deal was found by Cheapflights users on 1/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from USA to Keflavik Intl
Keep the following information in mind while searching for USA to Keflavik Intl flight deals. Data was last updated janeiro 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $325 (CrystalTravel) |
One-way from | $217 (Kiwi.com) |
Popular in | December |
Cheapest in | May |
Average price | $426 |
Good round-trip deal | $365 or less |
Good one-way deal | $186 or less |
Cheapflights Fare Finder
Use the filters below to find and compare flights from the United States to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BostonReykjavik
BOS - KEF
BOSKEF
Boston Logan Intl
sáb 4/18
4:30 pm-9:30 am
1 stop13h 00m
Reykjavik Keflavik Intl
dom 4/26
11:25 am-7:27 pm
1 stop12h 02m
New YorkReykjavik
JFK - KEF
JFKKEF
New York John F Kennedy Intl
sex 5/1
11:55 pm-9:30 am
Nonstop5h 35m
Reykjavik Keflavik Intl
qui 5/7
11:25 am-1:29 pm
Nonstop6h 04m
New YorkReykjavik
JFK - KEF
JFKKEF
New York John F Kennedy Intl
qua 4/29
11:55 pm-9:30 am
Nonstop5h 35m
Reykjavik Keflavik Intl
seg 5/4
11:25 am-1:29 pm
Nonstop6h 04m
New YorkReykjavik
JFK - KEF
JFKKEF
New York John F Kennedy Intl
qui 4/16
11:55 pm-9:30 am
Nonstop5h 35m
Reykjavik Keflavik Intl
dom 4/19
11:25 am-1:29 pm
Nonstop6h 04m
New YorkReykjavik
JFK - KEF
JFKKEF
New York John F Kennedy Intl
sex 5/8
11:55 pm-9:30 am
Nonstop5h 35m
Reykjavik Keflavik Intl
seg 5/11
9:30 am-11:51 pm
1 stop18h 21m
BostonReykjavik
BOS - KEF
BOSKEF
Boston Logan Intl
qua 4/22
8:59 pm-9:30 am
1 stop8h 31m
Reykjavik Keflavik Intl
qua 4/29
11:25 am-7:38 pm
1 stop12h 13m
New YorkReykjavik
LGA - KEF
LGAKEF
New York LaGuardia
qui 5/7
12:55 pm-6:20 am
1 stop13h 25m
Reykjavik Keflavik Intl
ter 5/12
8:50 am-11:43 pm
1 stop18h 53m
NewarkReykjavik
EWR - KEF
EWRKEF
Newark
qui 5/7
5:00 pm-6:20 am
1 stop9h 20m
Reykjavik Keflavik Intl
ter 5/12
9:30 am-11:33 pm
1 stop18h 03m
New YorkReykjavik
LGA - KEF
LGAKEF
New York LaGuardia
qui 5/7
12:55 pm-6:20 am
1 stop13h 25m
Reykjavik Keflavik Intl
ter 5/12
9:30 am-7:20 pm
1 stop13h 50m
NewarkReykjavik
EWR - KEF
EWRKEF
Newark
qui 5/7
5:00 pm-6:20 am
1 stop9h 20m
Reykjavik Keflavik Intl
ter 5/12
8:50 am-6:00 pm
2 stops13h 10m
Best time to book a flight from USA to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from USA with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from the United States to Reykjavik Keflavik Intl Airport
What is the cheapest month to book a flight from USA to Reykjavik Keflavik Intl Airport?
Currently, December is the cheapest month in which you can book a flight from USA to Reykjavik Keflavik Intl Airport (average of $212). Flying from USA to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $360). 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.
What is the cheapest time of day to fly from US to KEF?
Find hourly flight availability from USA to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated janeiro 29, 2026.
It’s typically best to fly out from USA to Reykjavik Keflavik Intl Airport at noon. Doing so could potentially save you 14% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from USA to Reykjavik Keflavik Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from USA to Keflavik Intl. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their USA to Reykjavik Keflavik Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from the United States to Reykjavik delayed?
About 17% of weekly flights between United States and Reykjavik have experienced delays in the past year, with the average delay time being 155 minutes.
What is the most punctual flight time for the United States to Reykjavik flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on the United States to Reykjavik flights?
Over the last year, CAA have had the lowest number of delays on this route, with just 7% of flights being delayed.
The best insider tips for theUnited States to Reykjavik Keflavik Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Reykjavik Keflavik Intl Airport trip
Our travel experts
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 janeiro 29, 2026.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from the United States to Reykjavik Keflavik Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Entertainment
Boarding
Comfort
Food
Overall
Reviews
Anonymous,Jan 2026
STS - LAX
Crew
Entertainment
Boarding
Comfort
Food
Overall
Reviews
Anonymous,Jan 2026
STS - LAX
Crew
Entertainment
Boarding
Comfort
Food
Overall
Reviews
Anonymous,Jan 2026
STS - LAX
Crew
Entertainment
Boarding
Comfort
Food
Overall
Reviews
Anonymous,Jan 2026
STS - LAX
Crew
Entertainment
Boarding
Comfort
Food
Overall
Reviews
Anonymous,Jan 2026
STS - LAX
Crew
Entertainment
Boarding
Comfort
Food
Overall
Reviews
Anonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from USA to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Reykjavik Keflavik Intl Airport?
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Alternative routes for USA to Keflavik Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 9 airlines flying from USA to Keflavik Intl
Discover the top 9 airlines that operate flights from USA 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 janeiro 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$235 | Average$377 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$298 | Average$781 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$338 | Average$726 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$353 | Average$837 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$360 | Average$821 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$371 | Average$768 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$379 | Average$800 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$392 | Average$868 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$526 | Average$664 | FlexibilityNo cancel fee | On-time60% |